Tool-holding device, work machine with the tool-holding device, as well as a method for positioning a tool on a tool-holding device
11541524 · 2023-01-03
Assignee
Inventors
Cpc classification
B26D7/2614
PERFORMING OPERATIONS; TRANSPORTING
B21D28/34
PERFORMING OPERATIONS; TRANSPORTING
B25D2217/0038
PERFORMING OPERATIONS; TRANSPORTING
B21D37/04
PERFORMING OPERATIONS; TRANSPORTING
Y10T279/17761
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
International classification
Abstract
A tool-holding device (11) for holding a tool (13) on a work machine with a retaining unit (20) and with a lock unit (30). The lock unit (30) can be transferred from a receiving position into a fixing position, and the retaining unit (20) comprises a receiving section (21) for holding the lock unit (30) at least in sections. The lock unit (30) comprises a tool-holding section (33) for holding a tool (13) in a pre-positioned manner. A work machine with this tool-holding device and a method for positioning a tool (13) on a work machine are also disclosed.
Claims
1. A tool-holding device (11; 111; 211; 311) for holding a tool (13; 14; 15) on a cable processing machine, with a retaining unit (20; 120; 220; 320) and with a lock unit (30; 130; 230; 330), wherein the lock unit (30; 130; 230; 330) can be transferred from a receiving position into a fixing position and the retaining unit (20; 120; 220; 320) comprises a receiving section (21; 321) for holding the lock unit (30; 130; 230; 330) at least in sections, and the lock unit (30; 130; 230; 330) comprises a tool-holding section (33; 333) for a pre-positioned holding of a tool (13; 14; 15), wherein the tool-holding section (33: 333) holds the tool (13: 14: 15), prior to transferring the lock unit (30: 130: 230: 330) into the fixing position, independently and self-lockingly in position, wherein the lock unit (30; 130; 230; 330) comprises a fastening section (35; 335) for attaching the lock unit (30; 130; 230; 330) on the retaining unit (20; 120; 220; 320), a connection element (29; 329) is present, by which the lock unit (30; 130; 230; 330) is arranged on the retaining unit (20; 120; 220; 320) relative to this in a moveable manner, and the lock unit (30; 130; 230; 330) with the tool-holding section (33; 333) is pivotably arranged on the retaining unit (20; 120; 220; 320).
2. A tool-holding device according to claim 1, wherein the lock unit (30; 130; 230; 330) comprises an oblong hole (40; 340) with a longitudinal axis, and the lock unit (30; 130; 230; 330) can be linearly moved at least along the longitudinal axis (41; 341) of the oblong hole (40; 340).
3. The tool-holding device according to claim 1, wherein the lock unit (30; 130; 230; 330) comprises a pre-tensioning section (37; 337), the pre-tensioning section (37; 337) comprises an elastic pre-tensioning element (39; 339), and the pre-tensioning element (39; 339) is designed to position the lock unit (30; 130; 230; 330) at the fixing position and/or at the receiving position in a pre-tensioned manner.
4. The tool-holding device according to claim 3, wherein the pre-tensioning section (37) is arranged between the tool-holding section (33, 333) and a fastening section (35; 335) of the lock unit.
5. The tool-holding device according to claim 1, wherein the receiving section (21; 321) of the retaining unit (20; 120; 220; 320) fully accommodates the lock unit (30; 130; 230; 330).
6. The tool-holding device according to claim 1, wherein the receiving section (21; 321) of the retaining unit (20; 120; 220; 320) comprises a holding section (23; 323) with a fixing stop (25; 325) for temporarily fixing the tool (13; 14; 15) in the fixing position, the retaining unit (20; 120; 220; 320) comprises a receiving stop (22), and the holding section (23; 323) is wedge-shaped.
7. The tool-holding device according to claim 1, wherein the tool-holding section (33; 333) of the lock unit (30; 130; 230; 330) comprises at least one accommodating space (34; 334) for holding at least one tool (13; 14; 15), the accommodating space (34; 334) on the tool-holding section (33; 333) comprises a holding stop (36; 336), which is designed to establish an operative connection to a fixing stop (25; 325) on the holding section (23; 323) of the retaining unit (20; 120; 220; 320) at least temporarily, and the accommodating space (34; 334) on the tool-holding section (33; 333) is U-shaped.
8. The tool-holding device according to claim 7, wherein the accommodating space (34; 334) on the tool-holding section (33; 333) comprises a tool coding (50; 150; 250).
9. The tool-holding device claim 1, wherein an unlocking device (45; 345) for unlocking the lock unit (30; 130; 230; 330) is present, and the unlocking device (45; 345) is designed to transfer the lock unit (30; 130; 230; 330) from the fixing position into the receiving position.
10. The tool-holding device according to claim 9, wherein the unlocking device (45; 345) comprises an unlocking pin (46; 346), which is designed to counteract a pre-tensioning force on the lock unit (30; 130; 230; 330), and the unlocking pin (46; 346) can be moved in a direction of a longitudinal axis of an oblong hole (40; 340).
11. The tool-holding device according to claim 10, wherein the unlocking device (45; 345) comprises a return element (47) for returning the unlocking pin (46; 346) from an release position to a holding position, and the return element (47; 347) is designed as a spring element (48; 348).
12. A cable processing machine (400) with a tool-holding device (11; 111; 211; 311) according to claim 1.
13. The cable processing machine according to claim 12 wherein the retaining unit (20; 120; 220; 320) of the tool-holding device (11; 111; 211; 311) is arranged in a detachable manner.
14. A method for positioning a tool (13; 14; 15) on a tool-holding device with a tool-holding device (11; 111; 211; 311) according to claim 1, wherein the method comprises the following steps: a) opening a lock unit (30; 130; 230; 330), and the lock unit (30; 130; 230; 330) is transferred from a fixing position into a receiving position for holding the tool (13; 14; 15); b) arrangement of a tool (13; 14; 15) on a tool-holding section (33; 333) of the lock unit (30; 130; 230; 330), and the tool (13; 14; 15) is then held in the tool-holding section (33; 333) in a pre-positioned manner, wherein the tool-holding section (33: 333) hold the tool (13: 14: 15), prior to transferring the lock unit (30: 130: 230: 330) into the fixing position, independently and self-lockingly in position; c) closing the lock unit (30; 130; 230; 330), and the lock unit (30; 130; 230; 330) along with the tool (13; 14; 15) arranged in the tool-holding section (33; 333) are transferred from the receiving position into the fixing position.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The figures show:
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
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(19) Furthermore, a receiving stop 22 is provided on the retaining unit 20 for positioning the lock unit 30 in the receiving position. Thereby, the lock unit 30 is stopped when transferred to the receiving position, wherein the lock unit 30 abuts the receiving stop 22 in sections. The retaining unit 20 additionally comprises a positioning section 26 for positioning the tool-holding device 11 on a work machine. An oblong positioning hole 28 and a positioning joint 27 are present on the positioning section 26, by means of which the retaining unit 20 can be positioned along the longitudinal extension of the positioning oblong hole 28 in an adjustable and is also arranged on the work machine in a detachable manner. Furthermore, the retaining unit 20 comprises a catch section 24, on which a connection element 29 is arranged, which is designed as a bolt here.
(20) The lock unit 30 comprises a tool-holding section 33 with an accommodating space 34 for holding and the pre-positioned holding of the tool 13, which is designed here as an impact tool (see
(21) The lock unit 30 furthermore comprises a fastening section 35 for attaching the lock unit 30 on the retaining unit 20, as well as a pre-tensioning section 37. In this case, the fastening section 35 is separated from the tool-holding section 33 and the pre-tensioning section 37 locally, wherein the pre-tensioning section 37 is arranged between the fastening section 35 and the tool-holding section 33.
(22) An elastic pre-tensioning element 39 is arranged in the pre-tensioning section 37. The elastic pre-tensioning element 39 is designed to position the lock unit 30 at the fixing position as well as in the receiving position in the retaining unit 30 in a pre-tensioned manner. In accordance with this embodiment of the tool-holding device 11, a helical spring is provided as an elastic pre-tensioning element 39.
(23) The lock unit 30 can be transferred from the fixing position (
(24) The lock unit 30 comprises an oblong hole 40 with a longitudinal axis 41, wherein the lock unit 30 can be linearly moved along the longitudinal axis 41 of the oblong hole 40. The connection element 29 is designed as a pivoting aid, wherein the lock unit 30 is positioned on the retaining unit 30 with the aid of the connection element 29, and the lock unit 30 with the tool-holding section 33 can be pivoted around the connection element 29. The connection element 29 of the retaining unit 20 thereby engages into the oblong hole 40 of the lock unit 30 and can be moved along a defined vertical path of travel in the oblong hole 40.
(25) The accommodating space 34 on the tool-holding section 33 is U-shaped and comprises a holding stop 36 so that the lock unit 30 can be easily held in the fixing position. The holding stop 36 shown is designed as a section of the lock-unit wall 31 in the region of the accommodating space 34. The holding stop 36 is formed in order to establish an operative connection with the fixing stop 25 on the holding section 23 of the retaining unit 20 at least temporarily, i.e. at least in the fixing position of the lock unit 30. The holding stop 36 rests touching on the fixing stop 25.
(26) The tool-holding device 11 comprises an unlocking device 45 for unlocking the lock unit 30. The unlocking device 45 is arranged on the retaining unit 20 and is designed to transfer the lock unit 30 from the receiving position into the unlocking position. The unlocking device 45 comprises an unlocking pin 46, which can be transferred from a holding position (
(27) The tool 13 shown in
(28) Based on the
(29) The method entails opening the lock unit 30, wherein the lock unit 30 can be transferred from the fixing position into a receiving position for holding the tool 13 (step a). During this transfer, the lock unit 30 is initially moved linearly from the fixing position (
(30) Subsequently, the lock unit 30 slides along the wedge-shaped holding section 23 of the retaining unit 20 in its receiving position, wherein the pivot movement of the lock unit 30 by the receiving stop 22 of the retaining unit 20 is stopped. In the following, the unlocking pin 46 is subsequently transferred with the aid of the return element 47 from its release position (
(31) Subsequently, the tool 13 is arranged on the tool-holding section 33 of the lock unit 30, wherein the tool 13 is held in the tool-holding section 33 in a pre-positioned manner ((step b);
(32) Finally, the closing of the lock unit 30 is carried out, wherein the lock unit 30 is transferred along with the tool 13 arranged in the tool-holding section 33 are transferred from the receiving position (
(33) The previously shown method for positioning a tool 13 on a work machine with a tool-holding device 11 can be carried out both with the aid of the tool-holding device 11 in accordance with
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(36) Tool codings, which are designed differently to the previously shown tool codings, can also be used in the embodiments of the tool-holding device shown here. In particular, if the accommodating space on the lock unit is, for example, square-shaped and/or polygonal. For example, a tool with a base body that has a corresponding square or rectangular base-body cross-section can be arranged (not shown).
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(38) Based on the
(39) The method entails opening the lock unit 330, wherein the lock unit 330 can be transferred from the fixing position into a receiving position for holding the tool 13 (step a). During this transfer, the lock unit 330 is initially moved linearly from the fixing position (
(40) Simultaneously, the connection element 329 is linearly moved along the oblong hole 340 in the direction of the accommodating space 334 towards the unlocking position.
(41) Subsequently, the lock unit 330 slides along the wedge-shaped holding section 323 of the retaining unit 320 in its receiving position. In this case, the wedge-shaped holding section 323 comprises a wedge angle α, wherein the lock unit 330 slides along the wedge-shaped holding section 323 when transferring into the receiving position with the lock-unit wall 331. When opening, the lock unit 330 is thereby pivoted from the unlocking position to the receiving position along the opening angle. The opening angle β is described with the aid of the lock-unit wall thickness d, the accommodating-space diameter c, the wedge angle α and the lock-unit length e, wherein the opening angle β is defined with
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(43) When sliding the lock unit 330 along the wedge angle a, the elastic pre-tensioning element 339 is pushed apart again so that the connection element 329 is moved along the longitudinal axis 341 in the oblong hole 340. This previously described construction of the retaining unit 330 including the functional features can also be used in the embodiments of the tool-holding devices in accordance with
(44) Subsequently, the tool 13 is arranged on the tool-holding section 333 of the lock unit 330, wherein the tool 13 is held in the tool-holding section 333 in a pre-positioned manner (step b); (
(45) In conclusion, the closing of the lock unit 330 takes place, wherein the lock unit 330 along with the tool 13 arranged in the tool-holding section 333 are transferred from the receiving position (
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Reference List
(48) 11 tool-holding device 13 tool 14 other tool 14a cylindrical base body of 14 15 other tool 16 cylindrical base body of 15 17 first recess of 15 18 second recess of 15 19 cylindrical base body of 13 20 retaining unit 21 receiving section 22 receiving stop 23 holding section 24 catch section 25 fixing stop 26 positioning section 27 positioning joint 28 oblong positioning hole 29 connection element 30 lock unit 31 lock-unit wall 33 tool-holding section 34 accommodating space 35 fastening section 36 first holding stop 37 pre-tensioning section 38 39 elastic pre-tensioning element 40 oblong hole 41 longitudinal axis 45 unlocking device 46 unlocking pin 47 return element 48 unlocking-pin safeguard 49 bevel of 46 50 tool coding in 34 51 tool coding of 13 111 tool-holding device 120 retaining unit 130 lock unit 134 accommodating space 145 unlocking device 150 tool coding in 134 151 tool coding of 14 211 tool-holding device 220 retaining unit 230 lock unit 234 accommodating space 245 unlocking device 250 tool coding in 134 251 tool coding of 15 252 first projection of 251 253 second projection of 251 311 tool-holding device 320 retaining unit 321 receiving section 323 holding section 325 fixing stop 329 connection element 330 lock unit 333 tool-holding section 334 accommodating space 335 fastening section 336 holding stop 337 pre-tensioning section 339 elastic pre-tensioning element 340 oblong hole 341 longitudinal axis 346 unlocking pin 400 work machine 401 fastening device 402 fastening means α wedge angle β opening angle c accommodating-space diameter d lock-unit wall thickness e lock-unit length A-C support points