Vise jaw base plate adapters including soft jaws

Abstract

Vise jaws are provided with base plates having bolt receiving holes or slots passing therethrough near top edges thereof. Soft jaws formed of a readily machinable material are provided with threaded bores which can receive bolts passing through the holes or slots in the base plates, the bolts also pass into the threaded bores to hold the soft jaws to the base plates. The soft jaws can be provided with a modified contour to match a geometry of a workpiece to be held. A locating pin can cooperate with alignment holes and alignment bores in the base plates and soft jaws for precise alignment of the base plates and soft jaws together. Adapters are also provided which can attach to surfaces of base plates and be rotated to present edges at a variety of different angles for supporting of workpieces in various angled orientations.

Claims

1. A method for holding a workpiece with a vise for machining, including the steps of: identifying a vise having a pair of jaws with a base plate adjacent each jaw, the base plates having faces which are parallel and spaced from each other, at least one of the base plates having holes extending through the base plate near a top edge thereof; identifying at least one elongate soft jaw having a plurality of threaded holes therein, at least two of the threaded holes similar in size and spacing to at least two of the holes passing through the base plate near the top edge; evaluating surfaces of a workpiece to be held during machining of the workpiece; cutting the soft jaw to have at least portions of the soft jaw exhibit modified contours matching portions of surfaces of the workpiece to be held, as determined by said evaluating step; attaching the soft jaw to the base plate; tightening the vise upon the workpiece with the surfaces of the workpiece held adjacent the modified contours of the soft jaw; wherein said identifying a vise step includes at least one of the pair of jaws having a notch therein, wherein at least one of the base plates includes an alignment hole therein, the alignment hole sized similarly to the notch in the jaw; and placing a locating pin of elongate cylindrical form through the alignment hole in the base plate and into the notch in the jaw, the alignment pin aligning the base plate with the jaw before securing of the base plate to the jaw.

2. The method of claim 1 wherein said identifying steps include the holes in the base plate and the threaded holes in the soft jaw being equally spaced to each other to allow bolts to pass through the holes in the base plate and into the threaded holes in the soft jaw to hold the soft jaw to at least one of the base plates.

3. The method of claim 1 wherein said identifying steps include the soft jaw formed of a material softer than a material from which the base plates are made.

4. The method of claim 3 wherein said identifying steps include the soft jaw formed of aluminum and the base plates formed of steel.

5. The method of claim 1 wherein said soft jaw includes slots therein extending into a surface of the soft jaw having the threaded holes therein, at least one of the base plates include at least two pins extending therefrom, the pins located such that the pins reside within the slots in the soft jaw when the soft jaw is adjacent to the base plate and with the holes in the base plate aligned with the threaded holes in the soft jaw.

6. The method of claim 1 wherein the holes in the base plate are in the form of slots which are elongate in a horizontal direction.

7. The method of claim 1 wherein the holes in the base plate are cylindrical in form and sized similarly to the threaded holes in the soft jaw.

8. The method of claim 1 wherein said identifying a vise step includes both base plates having alignment holes therein sized to receive the locating pin passing therethrough while the alignment pin is also located within the notch in the jaw; passing the locating pin through the alignment holes in the base plates and into the notch in at least one of the jaws; and securing the base plates to adjacent ones of the jaws with the locating pin in place to align the base plates precisely together.

9. The method of claim 1 wherein said identifying an elongate soft jaw step includes placing two soft jaws, one adjacent each base plate, the soft jaws each having an alignment bore passing therethrough, the alignment bore sized to receive the locating pin passing therethrough; and passing the locating pin through each of the alignment bores in the soft jaws to cause alignment of the soft jaws to each other.

10. A system for holding a workpiece with a vise for machining, the system comprising in combination: a pair of base plates attachable to adjacent jaws of a vise, said base plates having faces which are parallel and spaced from each other, at least one of said base plates having holes extending through said base plate near a top edge thereof; at least one elongate soft jaw having a plurality of threaded holes therein, at least two of said threaded holes similar in size and spacing to at least two of said holes passing through said base plate near said top edge; said soft jaw provided with a modified contour matching at least a portion of a surface of a work piece to be held by the soft jaw; a plurality of bolts passing through said holes in said base plate and into said threaded holes in said soft jaw to hold said soft jaw to at least one of said base plates; wherein at least one of said vises has a notch therein on a side of said vise adjacent to one of said base plates, said base plate adjacent said jaw having said notch therein having an alignment hole passing therethrough, said alignment hole sized similar to a size of said notch; and a locating pin of elongate cylindrical form sized to pass through said alignment hole and into said notch, said locating pin extending substantially perpendicularly away from said jaw and perpendicular to said faces of said base plates.

11. The system of claim 10 wherein said holes in said base plate and said threaded holes in said soft jaw are equally spaced from each other a similar distance to allow said bolts to pass through said holes in said base plate and said threaded holes in said soft jaw to hold said soft jaw to at least one of said base plates.

12. The system of claim 10 wherein said at least one soft jaw includes a plurality of slots therein extending into a surface of said soft jaw having said threaded holes therein, said base plate including at least two pins extending therefrom, said pins located and sized to fit within said slots in said soft jaw with said threaded holes in said soft jaw aligned with said holes in said base plates.

13. The system of claim 10 wherein said holes in said base plates are elongate slots extending horizontally.

14. The system of claim 10 wherein each of said base plates includes alignment holes therein, each sized to receive said locating pin passing therethrough.

15. The system of claim 10 wherein said soft jaw is provided as one of a pair of soft jaws, each said soft jaw adjacent a base plate, each soft jaw including an alignment bore passing therethrough, said alignment bores sized to receive said locating pin passing therethrough, such that said locating pin can pass through each of said alignment bores in said soft jaws simultaneously to assist in alignment of the and soft jaws to each other before tightly securing said soft jaws to said base plates.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a perspective view of a pair of vises modified according to this invention to include standard or modified base plates and utilizing soft jaws.

(2) FIG. 2 is a perspective view of that which is shown in FIG. 1 after the vise jaws have been closed onto a workpiece for secure holding of the workpiece before machining thereof.

(3) FIG. 3 is a rear elevation view of a soft jaw according to one embodiment of this invention, which can be itself machined to include modified contours matching portions of a workpiece to be held.

(4) FIG. 4 is a full sectional top plan view taken along lines 4-4 of FIG. 3 of the soft jaw with optional circular modified contour features cut thereinto.

(5) FIG. 5 is a front elevation view of the soft jaw of FIG. 3 and further showing circular modified contour features cut thereinto.

(6) FIG. 6 is an end elevation view of the soft jaw of FIG. 3, with an optional angle cut shown in broken lines.

(7) FIG. 7 is a top plan view of a slotted base plate according to this invention, with geometric features passing therethrough shown with hidden lines.

(8) FIG. 8 is a front elevation view of the slotted base plate of FIG. 7.

(9) FIG. 9 is a side elevation view of the slotted base plate of FIGS. 7 and 8 and further including a soft jaw such as that depicted in FIGS. 3-6 attached thereto with a bolt.

(10) FIG. 10 is a perspective view of a vise with a modified alignment base plate on either side of the vise and with a soft jaw pair and locating pin provided for alignment of the base plates together and for alignment of the soft jaws together.

(11) FIG. 11 is a perspective view of that which is shown in FIG. 10, with the vise shown closed and the base plates and soft jaws all aligned together with the locating pin.

(12) FIG. 12 is a perspective view of that which is shown in FIG. 11, but with the various subassemblies exploded away from each other and further revealing how the alignment base plate, locating pin and slotted soft jaws can be aligned together in a rapid and convenient fashion.

(13) FIG. 13 is a rear elevation view of a slotted soft jaw alternative to that which is shown in FIGS. 3-6, featuring both an alignment bore and alignment slots along with the threaded bores.

(14) FIG. 14 is a full sectional bottom plan view of that which is shown in FIG. 13, taken along lines 14-14 of FIG. 13.

(15) FIG. 15 is a front elevation view of that which is shown in FIGS. 13 and 14.

(16) FIG. 16 is an end elevation view of that which is shown in FIGS. 13-15.

(17) FIG. 17 is a rear elevation view of a variation on the slotted soft jaw of FIG. 13, where pin bores are provided rather than alignment slots.

(18) FIG. 18 is a full sectional bottom plan view of that which is shown in FIG. 17, taken along lines 18-18 of FIG. 17.

(19) FIG. 19 is a front elevation view of that which is shown in FIG. 17.

(20) FIG. 20 is an end elevation view of that which is shown in FIG. 17.

(21) FIG. 21 is a perspective view of a soft jaw according to various embodiments of this invention, which can be cut to provide modified contours matching portions of a workpiece to be held.

(22) FIG. 22 is a perspective view of an arched base plate alternative to the base plates of FIGS. 1, 2 and 10-12.

(23) FIG. 23 is a top plan view of an adapter featuring edges which can be conveniently angled at 30 or 60, and which can be attached to a base plate and rotated to various different angles.

(24) FIG. 24 is a front elevation view of that which is shown in FIG. 23.

(25) FIG. 25 is an end elevation view of that which is shown in FIGS. 23 and 24.

(26) FIG. 26 is a front elevation view of a multi-hole base plate alternative to the base plates of previous figures and with multiple bolt holes therein and with adapters mounted to a front surface thereof and having various different angles presented on edges thereof.

(27) FIG. 27 is a front elevation view similar to that which is shown in FIG. 26, but with adapters rotated to further alternative positions.

(28) FIG. 28 is a top plan view of a 45 adapter having a diagonal surface conveniently locatable at a 45 angle to horizontal when attached to a base plate such as the multi-hole base plate of FIGS. 26 and 27.

(29) FIG. 29 is a front elevation view of that which is shown in FIG. 28.

(30) FIG. 30 is an end elevation view of that which is shown in FIGS. 28 and 29.

DESCRIPTION OF THE PREFERRED EMBODIMENT

(31) Referring to the drawings, wherein like reference numerals represent like parts throughout the various drawing figures, reference numeral 10 is directed to a vise adapter system (FIGS. 1 and 2) which includes various base plates 20, 30, 50, 80, 90 attachable to jaws J of a vise V for holding of a workpiece W. The system 10 in at least one embodiment features soft jaws 40 which can be provided with a modified contour matching a portion of the workpiece W to be held, such that quick, secure and accurate holding of the workpiece W can be achieved.

(32) In essence, and with particular reference to FIGS. 1 and 2, basic details of the system 10 are described, in initial embodiments. The system 10 works with a vise V having multiple jaws J including a stationary jaw J and a moving jaw J. Various base plates are attachable to these jaws J. In the system 10 depicted in FIGS. 1 and 2 a pair of vises V are provided adjacent to each other, but vises V could be utilized singularly or in groups of more than two. In this first example, one of the vises V has jaws J thereof fitted with standard base plates 20, while the other vise V has slotted base plates 30 attached to jaws J of the other vise V. The standard base plate 20 and slotted base plate 30 have faces parallel with each other to facilitate holding of a workpiece W therebetween. At least one soft jaw 40 (and typically two soft jaws 40) is provided adjacent to one of the plates 20, 30.

(33) The soft jaws 40 are preferably formed of a softer material than that from which the base plates 20, 30 are formed. Soft jaws 40 can be readily machined or otherwise cut or shaped to have a modified contour matching a geometry of a portion of a workpiece W to be held thereby. The soft jaws 40 thus present a surface for holding of the workpiece W which matches a geometry of the workpiece W, for secure and precise holding of the workpiece W where desired for machining on the workpiece W.

(34) Features for alignment of the base plates together are described in conjunction with an alignment base plate (FIG. 10-12) and associated locating pin 60 and slotted soft jaw 70. Other variations disclosed herein include an arched base plate 80 and a multi-hole base plate 90. The various base plates can alternatively have adapters 110, 130, 150 (FIGS. 23-30) attached thereto as an alternative to the soft jaws 40, 70 or in addition thereto. The adapters 110, 130, 150 can be pivoted to present edges at different angles for support of workpieces W which benefit from being angled relative to horizontal.

(35) More specifically, and with particular reference to FIGS. 1, 2 and 7-9, basic details of the standard base plate 20 and slotted base plate 30 are described, according to a preferred embodiment. The standard base plate 20 and slotted base plate 30 preferably have a similar construction except that bolt holes 28 of a cylindrical form are provided in the standard base plate 20 and slots 38 of an elongate horizontally-extending form are provided in the slotted base plate 30. Otherwise, the standard base plate 20 and slotted base plate 30 are preferably substantially identical. Thus, the standard base plate 20 and slotted base plate 30 are described together.

(36) These base plates 20, 30 include a face 22, 32 which is planar and configured to be parallel and spaced from a face of a corresponding opposite base plate coupled to an opposite jaw J of the vise V. Each base plate 20, 30 includes a top edge 24, 34 defining an uppermost portion of the base plate 20, 30. A rear 26, 36 of each base plate 20, 30 is provided opposite the face 22, 32. Fastener holes 25, 35 extend through the face 22, 32 to the rear 26, 36 which accommodate fasteners F which then thread into threaded holes in the jaws J.

(37) The fasteners F are typically in the form of threaded bolts which pass through these fastener holes 25, 35 to secure the base plates 20, 30 to the adjacent jaws J. The fastener holes 25, 35 preferably have a recessed shelf recessed into the faces 22, 32 and the fasteners F have a sufficiently shallow head so that the head can reside within a recess above these shelves so that the heads of the fasteners F can be fully recessed when tightened. Fastener holes 25, 35 are preferably slightly oversized to facilitate some movement laterally and vertically of the base plates 20, 30 relative to the jaws J. Thus, mere attachment of the base plates 20, 30 to adjacent jaws J with the fasteners F does not precisely align the base plates 20, 30. Rather, other alignment procedures are called for and accommodated by the oversizing of these fastener holes 25, 35.

(38) The standard base plate 20 includes bolt holes 28 passing perpendicular through the face 22 to the rear 26 near the top edge 24 of the base plate 20. These bolt holes 28 are preferably cylindrical in form and sized large enough to allow bolts B to pass therethrough. Preferably, some of these bolt holes 28 are fitted with pins 29 which press-fit into the bolt holes 28 and extend from the face 22 somewhat. The bolt holes 28 and pins 29 are preferably provided at a constant spacing extending along a horizontal line.

(39) The slotted base plate 30 includes slots 38 near a top edge 34 thereof which extend horizontally and along a common line parallel with the top edge 34. The slots 38 preferably have a height similar to a diameter of the bolt holes 28 but are significantly wider. In the embodiments shown, eight bolt holes 28 are provided in each standard base plate 20 and four slots 38 are provided in each slotted base plate 30. Each slot 38 has a length similar to a distance between adjacent bolt holes 28 in the standard base plate 20. Bolts B can pass through either the bolt holes 28 or the slots 38 and attach to a soft jaw 40 for attachment of the soft jaw to the standard base plate 20 or slotted base plate 30.

(40) With particular reference to FIGS. 1-6, basic details of the soft jaw 40 are described, according to a preferred embodiment. The soft jaw 40 is an elongate structure which preferably has a top side 42 opposite a bottom side and with a front side 46 opposite a rear side 44. Ends 41 are spaced apart by a length of the soft jaw 40. The soft jaw 40 is preferably formed of a softer material than that which forms the base plates 20, 30. For instance, the soft jaw 40 can be formed of aluminum while the base plates 20, 30 can be formed of steel. The soft jaw 40 can thus be quickly machined to exhibit a modified contour, such as a contour matching a portion of a geometry of a workpiece W.

(41) In FIGS. 1 and 2 the soft jaws 40 have been modified by including an angle cut A. Such an angle cut A is also depicted in FIG. 6 in broken lines. As an alternative, the soft jaw 40 can be modified with circle cuts C of a semi-cylindrical form (FIGS. 4 and 5), such as to allow the vise adapter system 10 to be particularly configured for holding workpieces that have circular or cylindrical contours. The modified contour of the soft jaw 40 is typically provided into a front side 46 and top side 42 of the soft jaw 40. The particular dimensions, shape and other characteristics of the modified contour of the soft jaw 40 are selected to match a geometry of a portion of a workpiece W to be held by the soft jaws 40. The soft jaws 40 thus provide a portion of a jig for securely holding a workpiece W and facilitating the rapid loading of a workpiece W into the vise V and precise locating of the workpiece W for accurate machining thereof.

(42) The soft jaws 40 typically are modified once to be utilized in the machining of multiple workpieces W having the same machining operation to be performed. The soft jaws 40 can be kept in inventory to be reused whenever similar machining steps are required. Because the soft jaws 40 are formed of aluminum or other easily machinable material the soft jaws 40 can be quickly modified to provide the optimal contour for holding of the workpiece W. FIGS. 7-9 further illustrate structural details of the base plates 20, 30 and with FIG. 9 depicting the attachment of the soft jaw 40 to the slotted base plate 30 for secure holding of a workpiece W (FIGS. 1 and 2).

(43) With particular reference to FIGS. 10-20, details of an alignment base plate 50 and associated locating pin 60 and soft jaw 70H, 70S are described, according to a further embodiment of this invention. The vise adapter system 10 benefits from having the base plates, such as alignment base plates 50, precisely aligned relative to each other and relative to a soft jaw, such as the slotted soft jaw 70S. As noted above, the fastener holes, such as the fastener holes 55 of the alignment base plate 50, do not precisely hold the base plate 50 to the adjacent jaws J. Rather, the fasteners F are slightly smaller than the size of the fastener holes 55 in the base plates 50 so that the base plates 50 can move somewhat laterally and vertically relative to the jaws J.

(44) To facilitate alignment of the alignment base plates 50, a pair of alignment base plates 50 are provided on opposite jaws J. Alignment base plates 50 include alignment holes 53 passing therethrough. A locating pin 60 is provided with a diameter similar to a diameter of the alignment holes 53, and exhibiting a slip fit. Optionally, a notch 51 is formed in at least one of the jaws J which is also sized to receive a tip 62 of the locating pin 60 therein. Thus, a pair of alignment base plates 50 (or at least one) can be placed adjacent to opposite jaws J of a vise V and the locating pin 60 can pass through the alignment holes 53 in each of the base plates 50 and into the notch 51 in one of the jaws J (by closing the vise jaws J together enough to allow the locating pin 60 to pass into each of the alignment holes 53), so that the alignment base plates 50 are precisely aligned opposite each other.

(45) The alignment base plate 50 otherwise has similar contour details as those of the base plates 20, 30 described in detail above. Thus, they include a face 52 opposite a rear 56 which are planar and parallel to each other, oriented in a vertical plane. A top edge 54 defines an uppermost portion of the base plate 50. Bolt holes 58 pass through the base plate 50 from the face 52 to the rear 56 near the top edge 54. Pins 59 can be provided which fit into pin holes 57 which are in line with the bolt holes 58 (shown in FIGS. 10 and 12 near each end of the row of bolt holes 58). A soft jaw 70H, which features pin bores 71 (FIGS. 17-20) can thus attach to the alignment base plate 50 in the same manner that the soft jaw 40 attached to the base plates 20, 30 as described above, except with the pins 59 fitting into the pin bores 71.

(46) The soft jaw 70H, 70S includes a top side 72 opposite a bottom side and a rear side 74 opposite a front side 76. These opposite sides are preferably parallel to each other and spaced a similar distance so that the soft jaw 70H, 70S has a substantially square cross-section. In other embodiments, soft jaws having different geometric cross-sections (and various dimensions) could be provided. The soft jaw 70H, 70S includes an alignment bore 79 passing therethrough which is sized similarly to a diameter of the locating pin 60. Also, the slotted soft jaw 70 includes threaded bores 75 similar to the threaded bores 45 in the soft jaw 40.

(47) The threaded bores 75 are provided in a line that includes the alignment bore 79 in a middle thereof. This pattern can repeat if longer soft jaws (see FIGS. 1-6) are to be provided. The pin bores 71 are also provided along this line (see FIG. 17). Preferably, the slotted soft jaw 70S features alignment slots 73 passing therethrough (rather than the pin bores 71), which can be aligned with the pins 59 extending from the alignment base plate 50 to further facilitate rapid attachment of the slotted soft jaw 70S to the alignment base plate 50. The locating pin 60 can then be used in the alignment bores 79 to line up the two soft jaws 70H, 70S.

(48) In particular, the following procedure can be followed. After the locating pin 60 has been used to align the two alignment base plates 50, the soft jaw 70H is plated adjacent to one of the base plates 50. The pins 59 extending out of the pin holes 57 fit into the pin bores 71 in the soft jaw 70H to locate it precisely. Bolts B are used to further secure the soft jaw 70H to the base plate 50. Next, a slotted soft jaw 70S is placed adjacent to the other base plate 50, with the pins 59 extending off of the pin holes 57 in the base plate 50 extending into the alignment slots 73. The slots allow some lateral movement of the slotted soft jaw 70S. The locating pin 60 is then placed in one of the alignment bores 79 in one of the soft jaws 70H, 70S and the jaws J are moved together until the locating pin passes into the alignment bore 79 of the other soft jaw 70S, 70H. The bolts B can then be placed and tightened to hold the slotted soft jaw 70S.

(49) Before placement of the workpiece W thereon, the same machining equipment associated with the vise V can be utilized to machine modified contours into the soft jaw 70H, 70S, such as by forming into the top side 72 and front side 76 of the soft jaw 70H, 70S. Once such contouring is complete and provided to match a geometry of a portion of a workpiece, the workpiece can then be placed between the soft jaws 70H, 70S for secure and precise positioning of the workpiece within the vise V. If this setup is taken down for some reason, it can be readily repeated by utilization of the locating pin 60 again along with the same soft jaws 70H, 70S which were provided with the modified contour for holding the particular workpiece. Alternatively, the modified contour can be formed into the soft jaws 70H, 70S or other soft jaws through a separate procedure, such as with the soft jaws 70H, 70S held within a vise V in a traditional fashion.

(50) FIGS. 21 and 22 depict how a soft jaw 40 can also be attached to an arched base plate 80. Some vises V have jaws J which benefit from utilization of an arched base plate 80 which includes clearance for portions thereof on a lower mid-area. Such an arched base plate 80 is generally similar to the base plates 20, 30, 50 described above including a planar face 82 opposite a planar rear 86 which are each oriented substantially vertically. A top edge 84 defines an uppermost portion of the arched base plate 80. Bolt holes 88 pass through the arched base plate 80 and allow for bolts B to hold a soft jaw 40 thereto. The arched base plate 80 also includes fastener holes 85 for attachment to a jaw J and a lower contour 87 unique to the arched base plate 80 to facilitate operation with particular jaws J which benefit from such contouring. Pins 89 can also extend from the arched base plate 80 to facilitate placement of the soft jaw 40 against the arched base plate 80.

(51) FIGS. 26 and 27 depict a multi-hole base plate 90 similar to the base plates 20, 30, 50, 80, but featuring a plurality of bolt holes 98 passing through portions thereof. These bolt holes 98 are preferably recessed with a shelf to facilitate bolts B extending into a face 92 of the multi-hole base plate 90 and with heads of the bolts B remaining recessed after such attachment. While soft jaws 40, 70 can be attached to the multi-hole base plate 90, the multi-hole base plate 90 is also configured so that adapters 110, 130, 150 (FIGS. 23-30) can be attached to the multi-hole base plate 90. This base plate 90 includes fastener holes 95 for attachment to jaws J through fasteners F. A top edge 94 defines an uppermost portion of the base plate 90. The pattern of the bolt holes 98 can be any of a variety of different patterns with the embodiment depicted having a generally rectangular spacing for a plurality of lower bolt holes 98 over the face 92 of the multi-hole base plate 90, except near an upper edge where spacing is provided to match spacing for threaded bores 45 in a soft jaw 40. In this way, the multi-hole base plate 90 can be utilized either with soft jaws 40 or with the adapters 110, 130, 150.

(52) With particular reference to FIGS. 23-25, details of a 30 adapter 110 are described. The 30 adapter 110 is a rigid monolithic structure configured to be attachable to a face 92 of the multi-hole base plate 90 or to other base plates on jaws J of a vise V. The 30 adapter 110 includes opposing parallel surfaces bounded by edges. These edges include a long edge 112, perpendicular to a short edge 114. A diagonal edge 116 extends between the long edge 112 and short edge 114. A bevel edge 118 is preferably provided where the diagonal edge 116 comes together with the short edge 114. A truncated tip 111 is preferably provided where the diagonal edge 116 comes together with the long edge 112.

(53) Edge bores 115 extend into at least the long edge 112 and short edge 114 which can receive bolts B for attachment of soft jaws 40, stops or other jigs for supporting of a workpiece W. Preferably these edge bores 115 are similar to the threaded bores 45 in the soft jaw 40 so that the same bolts B can be utilized with both the edge bores 115 and the soft jaws 40.

(54) The 30 adapter 110 can be formed of aluminum or other soft material to facilitate further machining thereof, but most typically is formed of steel and is primarily utilized to present the edges 112, 114, 116 having appropriate angular orientations. A recess 120 is provided on a portion of the 30 adapter. In this embodiment, this recess 120 is merely recessed into a portion of one of the surfaces of the adapter 110 which encompasses a pair of recessed holes 122 therein. Stepped holes 124 are provided elsewhere on the face of the 30 adapter 110. Various different recessed holes 122, 124 can be tightened to secure the 30 adapter 110 to an adjacent base plate once it has the desired orientation.

(55) For instance, attachment as shown presents the long edge at a 30 angle to horizontal and the short edge 114 at a 60 angle to horizontal. If the holes 124 closest to the short edge 114 are oriented vertically and used to fasten to bolt holes 98 in the base plate 90 (FIGS. 26 and 27) then the short edge 114 is oriented vertically. Similarly, holes 124 a common distance from the long edge 112 can be attached to bolt holes 98 in a vertical alignment to present the long edge 112 in a vertical orientation.

(56) With particular reference to FIGS. 26 and 27, details of a 90 adapter 130 are described. The 90 adapter 130 is shown upon the multi-hole base plate 90 and also generally illustrates how the 30 adapter 110 could be mounted to such a base plate 90. The 90 adapter 130 includes a pair of right angle edges 132 which are perpendicular to each other and a diagonal edge 134 extending between the right angle edges 132. A bevel edge 136 is provided at one of the ends of one of the right angle edges 132 adjacent the diagonal edge 134. Truncated tips 131 are also provided on at least one of the transitions between a right angle edge 132 and a diagonal edge 134.

(57) A curving slot 140 is provided which has an arcuate form with a step 142 surrounding the curving slot 140. Bolts can pass into this curving slot 140 and engage the step 142. When the bolt is somewhat loose, the 90 adapter 130 can pivot about a somewhat loose bolt in a pivot hole 145, with a separate bolt residing within the curving slot 140. Once a desired position for the 90 adapter 130 is achieved, the bolt within the curving slot 140 (and the bolt within the pivot hole 145) can be tightened against the step 142 to secure the 90 adapter 130 in this position. Stepped holes 144 are also provided on portions of the 90 adapter 130 such as to hold the 90 adapter 130 in a position where it presents a vertical edge and a 45 angle edge for supporting workpieces of various different types. FIGS. 26 and 27 reveal various different orientations which can be achieved with the 90 adapter 130 and illustrate pivoting of the 90 adapter 130 (along arrow D of FIGS. 26 and 27) into various different orientations.

(58) FIGS. 28-30 depict details of a 45 adapter 150 slightly different from the 90 adapter 130 of FIGS. 26 and 27. With the 45 adapter 150 a pair of parallel opposite surfaces are bounded by a pair of right angle edges 152 with a diagonal edge 154 extending between the right angle edges 152. A bevel edge 156 is provided at each of the right angle edges 152 where they transition to the diagonal edge 154, as well as truncated tips 151. Edges bores 155 are preferably provided extending into at least the diagonal edge 154 to facilitate attachment of other structures through bolts to this diagonal edge 154.

(59) A curving slot 160 curves about a pivot hole 165 provided at a corner between the two right angle edges 152. This curving slot 160 includes a step 162 and can receive a bolt therein which allows the 45 adapter 150 to rotate when the bolt is loose and to be secured when the bolt within the curving slot 160 is tightened. Stepped holes 164 are also provided passing through the 45 adapter 150 for securing of the 45 adapter 150, particularly in certain standard orientations such as with the diagonal edge 154 presented at a 45 angle and with the right angle edges 152 provided either vertically or horizontally.

(60) This disclosure is provided to reveal a preferred embodiment of the invention and a best mode for practicing the invention. Having thus described the invention in this way, it should be apparent that various different modifications can be made to the preferred embodiment without departing from the scope and spirit of this invention disclosure. When structures are identified as a means to perform a function, the identification is intended to include all structures which can perform the function specified. When structures of this invention are identified as being coupled together, such language should be interpreted broadly to include the structures being coupled directly together or coupled together through intervening structures. Such coupling could be permanent or temporary and either in a rigid fashion or in a fashion which allows pivoting, sliding or other relative motion while still providing some form of attachment, unless specifically restricted.