Machining device for machine-assisted production and machining of dental workpieces

Abstract

The invention relates to a machining device for the machine-assisted production and machining of dental workpieces (16), particularly of artificial teeth and/or other dental replacement parts, the at least one workpiece (16) being clamped in at least one workpiece retainer (11) which can be raised, lowered and rotatably driven, is positioned on a rotational axis (9), and, for the purpose of machining, feeds said workpiece (16) to at least one tool spindle (4, 5, 6) that is rotationally driven and has a tool (7) secured thereto, an additional tool retainer (2, 2a, 2b) with a plurality of tools (7) arranged thereupon being associated with said workpiece retainer (11, 11a, 11b) and lying opposite on one side thereof, and a workpiece changer (22, 22a, 22b) which receives the workpieces (16, 16a, 16b, 16c) to be machined, such that they can be exchanged, being arranged on the other side of said workpiece retainer (11, 11a, 11b).

Claims

1. A machining device for the machine-assisted production and machining of dental workpieces (16), at least one of the workpieces (16) being clamped in at least one workpiece retainer (11) which can be raised, lowered and rotatably driven and which is positioned on a rotational axis (9), and wherein the at least one workpiece retainer feeds the at least one workpiece (16), for the purpose of machining the at least one workpiece while the at least one workpiece (16) is clamped in the at least one workpiece retainer, to at least one tool spindle (4, 5, 6) that is rotationally driven and that has at least one tool (7) secured thereto, wherein the at least one workpiece retainer (11, 11a, 11b) is configured as a multi-axis robot with at least five degrees of freedom, on one side of the at least one workpiece retainer (11, 11a, 11b) is arranged at least one tool retainer (2, 2a, 2b) that is provided with the at least one tool spindle (4, 5, 6) and the at least one tool (7), and wherein on an opposite side of the at least one workpiece retainer (11, 11a, 11b) are arranged: (i) a tool storage (34), and (ii) a workpiece changer (22, 22a, 22b) in which the workpieces (16, 16a, 16b, 16c) to be machined are received such that the workpieces can be exchanged between the at least one workpiece retainer (11, 11a, 11b) and the workpiece chancier (22, 22a, 22b), wherein the at least one workpiece retainer (11, 11a, 11b) further comprises (i) a device at a head portion of the at least one workpiece retainer (11, 11a, 11b), which device is for clamping the workpiece (16) to be machined; and (ii) two gripper forks (32, 33), each gripper fork (32, 33) being configured to receive a respective tool, so as to enable the multi-axis robot to exchange tools between the tool storage (34) and the at least one tool spindle (4, 5, 6).

2. The machining device as claimed in claim 1, wherein the tool storage (34) comprises a plurality of holding arms (49) that together are rotatably driven in the manner of a rotary table (35), and wherein at a respective free end of each of the holding arms (49) a respective tool (7) is received within a respective plug-in device.

3. The machining device as claimed in claim 2, wherein the workpiece changer (22) comprises a plurality of holding arms (43) that together are rotatably driven in a manner of a rotary table (23), and wherein at a respective free end of each of the holding arms of the workpiece changer (43), a respective plug-in device (44) is arranged such that a respective workpiece (16) is held in an exchangeable manner.

4. The machining device as claimed in claim 3, wherein the holding arms (49) of the tool storage (34) are arranged on a common drive shaft (41).

5. The machining device as claimed in claim 1, wherein the at least one workpiece retainer (11, 11a, 11b) is configured as an X-Y-Z slide such that the clamped workpiece (16, 16a, 16b, 16c) can be moved in all three spatial directions, and can be rotated and swiveled.

6. The machining device as claimed in claim 1, wherein the dental workpieces (16) comprise at least one of artificial teeth or dental replacement parts.

7. A machining device for the machine-assisted production and machining of dental workpieces (16), at least one of the workpieces (16) being clamped in at least one workpiece retainer (11) which can be raised, lowered and rotatably driven and which is positioned on a rotational axis (9), and wherein the at least one workpiece retainer feeds the at least one workpiece (16), for the purpose of machining the at least one workpiece while the at least one workpiece (16) is clamped in the at least one workpiece retainer to at least one tool spindle (4, 5, 6) that is rotationally driven and has a tool (7) secured thereto, wherein the at least one tool spindle (4, 5, 6) comprises a plurality of tool spindles, wherein below the at least one workpiece retainer (11, 11a, 11b) a tool retainer (2, 2a, 2b) is arranged that is configured as a rotary table (3), wherein the plurality of tool spindles (4, 5, 6) and their respective tools (7) are placed on the rotary table (3), wherein each of the tool spindles is separately rotatably driven, and wherein arranged above the at least one workpiece retainer (11, 11a, 11b) is a workpiece changer (22, 22a, 22b) in which the workpieces (16, 16a, 16b, 16c) to be machined are received, such that the at least one workpiece retainer (11, 11a, 11b) can exchange workpieces between the at least one workpiece retainer (11, 11a, 11b) and the workpiece changer (22, 22a, 22b).

8. The machining device as claimed in claim 7, wherein the at least one workpiece retainer (11, 11a, 11b) is arranged within an interspace between the tool retainer (2, 2a, 2b) and the workpiece changer (22, 22a, 22b).

9. A machining device as claimed in claim 7, wherein the dental workpieces (16) comprise at least one of artificial teeth or dental replacement parts.

Description

(1) Below, the invention is further explained on the basis of drawings which illustrate only on way of embodying the invention. In this connection, further features and advantages of the invention essential for the invention develop from the drawings and their description, in which:

(2) FIG. 1 shows a perspective view of a first embodiment

(3) FIG. 2 shows a perspective view of a second embodiment deviating from the first embodiment

(4) FIG. 3 shows a perspective view of a third embodiment with linearly driven slides

(5) FIG. 4 shows an embodiment modified with respect to FIG. 3

(6) FIG. 5 shows a further embodiment modified with respect to FIG. 3

(7) FIG. 6 shows the view of the machining device as a table device

(8) FIG. 7 shows the device of FIG. 6 with a removed upper cover hood

(9) FIG. 8 shows the device of FIG. 7 in a view obliquely from below

(10) FIG. 9 shows the device of FIGS. 6 to 8 in a side view with removed cover hoods

(11) FIG. 10 shows a detailed view of the device of FIG. 9

(12) FIG. 11 shows a schematic illustration of an embodiment modified with respect to FIGS. 1 to 5

(13) FIG. 12 shows an embodiment modified with respect to FIG. 11

(14) FIG. 13 shows a further embodiment modified with respect to FIG. 11

(15) FIG. 14 shows a third embodiment modified with respect to FIG. 11

(16) FIG. 15 shows a fourth embodiment modified with respect to FIG. 11

(17) FIG. 16 shows a perspective illustration of a device with a fifth embodiment

(18) FIG. 17 shows the side view of the embodiment of FIG. 16

(19) FIG. 18 shows a view which is turned by 90 degrees compared to FIG. 17

(20) FIG. 19 shows the plan view of the arrangement of FIGS. 16 to 18

(21) In the following description of the Figures the same reference numerals are used for the same parts. When a part with a particular reference numeral has been described sufficiently, this description will also hold true for all of the other parts with the same reference numeral mentioned hereinafter. Accordingly, it is renounced to always provide the same description for parts with the same reference numerals.

(22) The machining device 1 of FIGS. 1 and 2 essentially consists of a lower rotary table 3 which is configured as a tool retainer 2 and on which in a first preferred exemplary embodiment only one single rotatably driven tool spindle 6 is arranged, the rotary drive of which is not illustrated in more detail.

(23) The tool spindle 6 comprises a suitable coupling device, e.g. a plug-in coupling, into which a tool 7 is inserted and coupled. In the vertical plane above the tool retainer 2 the inventive workpiece retainer 11 is arranged which is preferably configured as a 5-axis manipulator or a 5-axis robot. It consists of a base body 12 and can perform a rotary movement in the arrow direction 8a and a linear displacement in the arrow directions 15 in the indicated arrow directions (direction of tilt 13a, displacement direction in arrow direction 18 in the X-axis).

(24) Additionally, it carries a machining head which can be swiveled in the swivel axis 14 in the indicated direction of tilt 13. A workpiece holder 17 is disposed at the machining head, which workpiece holder is configured preferably as a plug-in recess into which a workpiece 16 to be machined can be inserted.

(25) Thus, for the purpose of machining the workpiece 16 is coupled non-rotatably in the workpiece holder 17, and the rotary drive for moving the workpiece 16 can take place in the arrow directions 28, for instance.

(26) Preferably, a handling device is arranged at the workpiece retainer 11, said handling device consisting of two forks 32, 33 arranged on top of each other, wherein the forks comprise suitable plug-in devices to remove a tool 7 from a tool storage 34 arranged above and to plug it onto the plug-in recess of the tool spindle 6.

(27) On the other hand, for instance by using the lower fork 33, the tool 7 which is not used anymore can be removed from the tool spindle 6 and returned to the tool storage 34.

(28) In a preferred embodiment, the tool storage 34 is configured such that it can be raised and lowered in the arrow direction 36 and is driven rotatably around the axis of rotation 9 in the arrow direction 37.

(29) In the plane below the tool storage 34 a further rotary table 23 is arranged which is allocated to a workpiece changer 22.

(30) At the workpiece changer 22 a plurality of workpieces 16a, 16b, 16c to be machined are arranged in a way evenly distributed around the circumference.

(31) This rotary table 22 is also preferably driven rotatably in the arrow direction 8.

(32) A workpiece 16 to be machined is simply removed by the workpiece retainer 11, with its front machining head and the workpiece holder arranged thereat, advancing to the top in the direction of the workpiece changer 22, coupling or clamping a blank workpiece thereat and by the workpiece retainer 11 returning to its basic position.

(33) In order to machine a workpiece 16 which is clamped in the workpiece holder 17 of the workpiece retainer 11 the workpiece retainer 11 is advanced to the bottom in the arrow direction 15 along the axis of rotation 9 and the workpiece to be machined is supplied to the area of the tool 7, which is clamped in the tool spindle 6 and driven rotatably, by means of the multi-axis displacement of the workpiece retainer 11, where it is subjected to a number of machining steps.

(34) Contrary to FIG. 1, FIG. 2 shows that it is not necessary for the solution to arrange the tool storage 34 in the uppermost plane. An arrow 34 indicates that the tool storage 34 can also be arranged at position 38, namely in the plane above the tool retainer 2.

(35) The exemplary embodiment of FIG. 2 also shows that it is possible to arrange a plurality of rotatably driven tool spindles 4, 5, 6 on a common rotary table 3 instead of one single tool spindle 6 according to FIG. 1which can actually be driven without a rotary table 3such that the workpiece 16 clamped in the workpiece retainer 11 can be supplied to a plurality of tool spindles 4, 5, 6 equipped with different tools successively at a short interval.

(36) As previously explained, according to the exemplary embodiment of FIG. 1 the rotary table 3 can be omitted accordingly, while it is available according to the exemplary embodiment of FIG. 2 and can be driven rotatably in the arrow direction 8.

(37) FIG. 3 shows that all of the rotatably driven parts according to FIGS. 1 and 2 can also be replaced by slides which can be moved linearly. The same reference numerals apply to the same parts. Here, it is apparent that the tool storage can now be configured as a slide which can be driven linearly in the arrow direction 18 and at the bottom side of which the tools 7, 7a, 7b, 7c are arranged.

(38) Accordingly, a fundamentally different machining device 10 is described compared to the machining device 1 as the machining device 1 according to the FIGS. 1 and 2 works with rotatably moved parts while the exemplary embodiment of the machining device 10 according to FIG. 3 works with modules which can be moved translationally.

(39) Instead of the arrangement of several rotatably driven tool spindles 4 to 6 which can carry a different tool 7 each it is provided in FIG. 4 that only one single rotatably driven tool spindle 6 with one exchangeable tool 7 arranged therein is provided. Accordingly, the translationally movable slides according to FIG. 3 can be omitted.

(40) In both embodiments according to FIGS. 3 and 4 it is apparent easily that the handling devices for changing the tools are configured as plug-in forks 32, 33 which enables a particularly fast and easy tool change of the tools 7 from the tool storage 34 in the direction of the tool spindle 4 to 6.

(41) FIG. 5 shows a further development of the configuration according to FIG. 4 and it is apparent that the translationally movable slide according to FIG. 3 which carries the plurality of tool spindles 4 to 6 can also be arranged vertically, and that the different modules are arranged vertically aligned one below the other.

(42) Only for the sake of completeness it is illustrated that the machining device 20 configured in this manner also works with a workpiece retainer 11, 11a, 11b and that the workpiece retainer is mounted in a rotary and swivel axis 60 such that it can be rotated and swiveled.

(43) FIG. 6 shows a practical configuration of a machining device 1, 10, 20, as has been illustrated above on the basis of the FIGS. 1 to 5.

(44) The upper area is covered by an upper cover hood 39, while the lower area is covered by a lower cover hood 40.

(45) The central machining area is left blank, and there the workpiece retainer 11 with the workpiece 16 to be machined is visible which is just advanced in the direction of a rotatably driven tool 7 which is clamped in a tool spindle 6.

(46) FIG. 7 shows the machining device 1, 10, 20 according to FIG. 6 with a removed upper cover hood 39. There, it is apparent that the workpieces 16 are each received in an allocated plug-in device 44 in the workpiece changer, and that the workpiece changer consists of a number of holding arms 43 wherein each holding arm consists of a horizontal section which vertically bends towards the bottom at its front free end and which comprises the plug-in device 44 at its vertical lower end for receiving the workpiece 16 to be machined.

(47) It is also apparent that the rotary drive of all holding arms, which are connected to one another non-rotatably, is performed by means of a motor whose motor shaft 45 drives the drive shaft 41 of the workpiece changer 22 rotatably by means of a driving belt 42.

(48) Furthermore, a transmission 47 is provided whose function is described in more detail on the basis of FIG. 8.

(49) At the rear part of the machining device 1, 10, 20 a liquid container 50 is apparent.

(50) FIG. 8 shows a perspective bottom view of the arrangement according to FIG. 7 where it is apparent that on an interior and lower plane the tool storage 34 is arranged below the workpiece changer 22 and that, in turn, the tool storage 34 consists of a number of holding arms 49 which are evenly distributed radially on the circumference and which extend towards the outside, wherein at every free end of every holding arm a plug-in device is provided to receive a tool 7 inserted therein.

(51) Accordingly, the holding arms 43 of the workpiece changer 22 are positioned in an upper horizontal plane just above the holding arms 49 of the tool storage 34 arranged below, wherein the tools 7 of the tool storage 34 are positioned on a smaller radius than the workpieces 16 of the workpiece changer 22 which are positioned further to the outside, by way of comparison.

(52) It is also apparent from FIG. 8 that the motor shaft 45 drives the upper driving belt 42 for the workpiece changer 22 by means of a coupling and an associated transmission 47, while the tool storage 34 which is positioned radially on the inside and below the workpiece changer 22 is rotatably driven by means of a further driving belt 46.

(53) Both drives are independent of one another and are separated from one another by a parting gap 48 but are arranged coaxially on the same drive shaft 41.

(54) Parts of the slide drive for the rotational, swivel and traversing movements of the machining device 10 are illustrated schematically.

(55) Two drive shafts which are driven independently of one another are illustrated of which only the driving belts 51 and 52 are identifiable in FIG. 8.

(56) Furthermore, a slide drive 53 is illustrated schematically and it is apparent that the workpiece 16 to be machined is now fed to the fixed spindle 6 with the rotatably driven tool 7 by means of the multi-axis workpiece retainer 11.

(57) FIG. 9 shows further details of the device described above wherein only in the side view the parts of the workpiece changer 22 which are positioned radially to the outside are identifiable, and further the plug-in devices associated with the workpiece changer 22 for receiving the workpieces 16.

(58) Further, three planes lying on top of one another are apparent, namely the plane of the upper part 57, the plane of the central part 56 lying below, and the plane of a base plate 54 lying below, on which pillars 55 are arranged which carry the central part 56.

(59) Apart from that, a flexible cover 58 is assigned to the multi-axis workpiece retainer 11, said flexible cover preventing chips from entering the interior of the device during the machining process of a workpiece 16 using the tool 7.

(60) Furthermore, a number of further liquid containers 50a, 50b, 50c are illustrated.

(61) FIG. 10 shows a detail of the machining device 1, 10, 20 corresponding to the above description, where the same parts are provided with the same reference numerals.

(62) It is apparent that the workpieces 16 to be machined are mounted radially towards the outside in front of the tools 7 of the tool storage 34 which are positioned behind.

(63) In FIG. 11 (and in all of the other embodiments) a central vertical axis of rotation 9 is provided, around which a tool retainer 2 is mounted rotatably in the arrow directions 8 which is configured as a rotary table 3 in a preferred embodiment. It is driven by a rotary motor which is not illustrated in more detail.

(64) On the rotary table 3 a number of tool spindles 4, 5, 6 is arranged which are rotatably driven separately, wherein a (possibly) different tool 7 is assigned to every tool spindle 4 to 6. For instance, one tool 7 can be configured as a dental milling cutter, the second tool can be configured as a pin-shaped milling cutter and the third tool can be configured as a grinding wheel and the like.

(65) A workpiece retainer 11 is arranged above the rotary table 3, said workpiece retainer being configured as an X-Y-Z slide 25, 26, 31 in a preferred exemplary embodiment.

(66) In the exemplary embodiment according to FIG. 11 the respective directions of rotation and directions of machining are illustrated. It is apparent that, for instance, a cylinder-shaped base body 12 can be fed in the arrow directions 15 in the vertical direction either to the lower rotary table 3 or to an upper workpiece changer 22. Furthermore, the base body 12 can be driven around a horizontal axis in the direction of tilt 13a. In an alternative embodiment it can be provided that the base body 12 is not driven in the direction of tilt 13a but that in fact the tool 16 clamped in at the front which is clamped in rotatably in a workpiece holder 17 is driven in the direction of tilt 13 around a swivel axis 14 such that it can be swiveled and tilted. Furthermore, the base body 12 can also be displaceable in the arrow directions 18.

(67) In this way, a displacement in the paper plane of FIG. 11 in the arrow directions 27 is provided such that the workpiece 16 clamped in the workpiece holder 17 is configured to be displaceable and adjustable in any spatial coordinate X, Y, Z.

(68) For machining, the workpiece 16 clamped in the workpiece holder 17 is fed downwards in the arrow direction 15 to the tool retainer 2 and is machined by a correspondingly controlled swivel, rotation and displacement movement as long as the workpiece 16 is machined to completion.

(69) After the machining process has taken place, the workpiece retainer 11 is fed towards the top in the arrow direction 15 towards a workpiece changer 22 which is preferably also configured as a rotary table 23 in a first embodiment. The workpiece changer 22 is driven rotatably around the vertical axis 9 in the arrow directions 8 and comprises a number of workpieces 16a, 16b, 16c at its outer circumference which either have all been machined to completion already or which are picked up from the workpiece retainer 11 as blank workpieces, clamped in the workpiece holder 17 and passed on for machining.

(70) The general basic shape of the machining device 1 according to FIG. 11 can be changed in several ways. FIG. 12 shows another embodiment of a machining device as an exemplary embodiment in which it is apparent that the workpiece changer 22a is configured as a linearly moveable component which can be changed in the arrow directions 18 and which can optionally also be configured to be rotatable in the arrow direction 8in another embodiment.

(71) Likewise, it is apparent from the exemplary embodiment according to FIG. 12 that the workpiece retainer 11 according to FIG. 11 is configured as a linearly moveable component in its embodiment as a workpiece retainer 11a in FIG. 12, said component being mounted at the vertical axis of rotation 9 such that it can be raised, lowered and swiveled. Thus, it is indicated very generally that the workpiece retainer 11a is configured to be displaceable, rotatable and adjustable in all three spatial axes, without the need for the arrangement of slide elements, such as the slide 25, 26, 31.

(72) FIG. 12 also shows that the configuration of the tool retainer 2 as a rotary table can be omitted and instead a tool retainer 2a can be provided as a linearly displaceable element.

(73) Complementary to FIGS. 11 and 12, FIG. 13 also shows that the workpiece retainer 11b does not necessarily have to be configured as a three-dimensionally displaceable slide, but it can also consist of a rotary table 19 which is rotatably driven in the arrow directions 21, wherein at its outer circumference a number of different workpiece holders are provided to clamp workpieces 16 to be machined. Thus, as a result, a three-dimensional movement of the workpieces clamped thereat in the individual workpiece holders 17 is achieved, wherein, however, in this embodiment the workpieces can be machined in parallel and optionally also at the same time by the tools 7 in the area of the tool retainer 2.

(74) FIG. 14 shows a further modification of the embodiments of the FIGS. 11 to 13, wherein every element of the three above-mentioned elements can be exchanged with each other and wherein the combination illustrated in FIG. 14 shall not limit the inventive concept.

(75) It is illustrated that the tool retainer 2 can be replaced with an element 2b which can be moved linearly in the vertical direction such that, instead of a horizontal rotational movement, a vertical displacement movement and optionally also a pertaining rotational movement in the arrow direction 8 takes place.

(76) Thus, what is illustrated in FIG. 14 on the right-hand side in dashed lines is to make clear that the element which is movable linearly and optionally rotatable can also replace the rotary table 3 of the tool retainer 2.

(77) The same applies to the upper workpiece changer 22 which may be configured as a rotary table 23, but which may also be replaced by a linearly moveable element which is configured to be displaceable vertically in the arrow directions 15 and is optionally also configured to be rotatable in the arrow directions 8.

(78) This means that all elements in FIG. 14 can be combined with one another in any desired manner.

(79) Therefore, in FIG. 14 a first type of a machining device 20 is indicated in which the tool retainer 2 is configured as a rotary table 3, the workpiece retainer 11 is configured in its embodiment according to 11a or 11b and the workpiece changer 22b is now configured as a linearly moveable element.

(80) Likewise, FIG. 14 shows on the right-hand side that another type of a machining device 30 can be provided in which the workpiece changer 22b is available, just like the workpiece retainer 11a or 11b or 11, but in which the tool retainer 2b is configured as a linearly moveable element which may optionally also be driven rotatably.

(81) All of the elements which are illustrated graphically in the FIGS. 11 to 14 can form a machining device 1 in any combination with each other.

(82) The FIGS. 15 to 19 show a preferred embodiment of the invention in the manner of a machining device 1 which was illustrated schematically in FIG. 11.

(83) The tool retainer consists of a rotary table 3 which is disposed in a housing shell in a rotatably-driven manner and in which a number of separately driven tool spindles 4, 5, 6 are disposed wherein every tool spindle 4 to 6 is equipped with a different tool 7.

(84) Above the tool retainer 2, the workpiece retainer 11 is disposed which preferably consists of three slides 25, 26, 31 which can be displaced and adjusted relative to one another.

(85) The workpiece 16 to be machined is held by a rotatably driven workpiece holder 17 which is rotatable in the arrow direction 28. The workpiece holder 17 is mounted in a rotary axis 24 rotatably, said rotary axis 24 in turn being configured in the swivel axis 14 in the directions of tilt 13 so as to be swiveled. It forms part of an X slide 25 which performs a displacement of the workpiece 16 in the X coordinate. The X slide 25 is mounted displaceably in a Y slide 26 in order to perform the displacement in the Y direction (arrow direction 27).

(86) Furthermore, the Y slide 26 is mounted displaceably in a Z slide 31 in order to perform a displacement in the arrow direction 15.

(87) The FIGS. 18 and 19 show that the workpiece retainer 11 with its slide elements 25, 26, 31 is disposed in a vertical pillar 29 which forms the connection between the lower tool retainer 2 and the upper workpiece changer 22.

(88) The upper workpiece changer 22 comprises a rotary table 23 at which a number of workpieces 16a, 16b, 16c is disposed so as to be exchangeable.

(89) Here, an easily detachable plug-in device is preferred as a clamping device. Further, the workpiece 16 to be machined is held in a conventional workpiece holder, such as a workpiece clamp, which can be operated mechanically, pneumatically or electromagnetically.

(90) The FIGS. 17 and 18 show the slides 25, 26, 31 which can be displaced relative to one another vertically, and thus show the possibility that the workpiece 16 to be machined can be fed to any tool 7 in every desired machining position, swivel position and spatial position and machined thereat.

REFERENCE NUMERAL EXPLANATION

(91) 1 machining device

(92) 2 tool retainer a,b

(93) 3 rotary table

(94) 4 tool spindle

(95) 5 tool spindle

(96) 6 tool spindle

(97) 7 tool

(98) 8 arrow direction 8a

(99) 9 axis of rotation

(100) 10 machining device

(101) 11 workpiece retainer a,b

(102) 12 base body

(103) 13 direction of tilt 13a

(104) 14 swivel axis

(105) 15 direction of arrow

(106) 16 workpiece a, b, c

(107) 17 workpiece holder

(108) 18 direction of arrow

(109) 19 rotary table

(110) 20 machining device

(111) 21 direction of arrow

(112) 22 workpiece changer 22a, b

(113) 23 rotary table

(114) 24 rotary axis

(115) 25 X slide

(116) 26 Y slide

(117) 27 direction of arrow

(118) 28 direction of arrow

(119) 29 pillar

(120) 30 machining device

(121) 31 Z slide

(122) 32 upper fork

(123) 33 lower fork

(124) 34 tool storage 34

(125) 35 rotary table

(126) 36 direction of arrow

(127) 37 direction of arrow

(128) 38 position (for 34 in FIG. 2)

(129) 39 cover hood

(130) 40 cover hood

(131) 41 drive shaft

(132) 42 driving belt (for 22)

(133) 43 holding arm (for 22)

(134) 44 plug-in device

(135) 45 motor shaft

(136) 46 driving belt (for 34)

(137) 47 transmission

(138) 48 parting gap

(139) 49 holding arm (for 34)

(140) 50 liquid container

(141) 51 driving belt (for 11)

(142) 52 driving belt (for 11)

(143) 53 slide drive (for 11)

(144) 54 base plate

(145) 55 pillar

(146) 56 central part

(147) 57 upper part

(148) 58 cover

(149) 59

(150) 60 rotary and swivel axis (of 11)