A clamp for rotating a workpiece based on steel wire rope transmission
The rotating workpiece fixture driven by wire rope solves the problem of frequent workpiece loading and unloading in the machining of cylindrical milling cutters, and achieves a combination of high-efficiency machining and low labor intensity. The multi-rotation axis synchronous transmission structure simplifies the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN FASHITE AUTOMOBILE TRANSMISSION CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-07-14
Smart Images
Figure CN224488394U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of machining, and relates to transmission, specifically relates to a kind of clamp of rotating workpiece based on steel wire rope transmission. BACKGROUND
[0002] To improve the cutting efficiency of barrel cutter, multiple workpieces to be machined are clamped once, and all the workpieces to be machined are arranged along the circumferential direction. When the workpieces to be machined are machined, the barrel cutter is used to cut twice to cut off the circular arc notches symmetrically distributed on both sides of the workpieces to be machined. The workpieces to be machined are manually clamped and unclamped twice during the machining process, i.e., the workpieces to be machined are clamped once initially, and each workpiece to be machined is rotated by 180° and clamped and unclamped once again after the first circular arc notch is cut off, so the process efficiency is not high enough. Moreover, each workpiece to be machined weighs about 7-10 kg, and the labor intensity of the operator is very high. SUMMARY
[0003] In view of the deficiencies in the prior art, the utility model aims to provide a clamp of rotating workpiece based on steel wire rope transmission to solve the technical problem that the machining efficiency of the workpieces to be machined is difficult to improve and the labor intensity is difficult to reduce when the circular arc notches are machined.
[0004] To solve the above technical problems, the utility model adopts the following technical solutions:
[0005] A clamp of rotating workpiece based on steel wire rope transmission includes multiple rotating shafts and multiple steel wire ropes, the rotating shafts are connected and driven by the steel wire ropes in sequence to form a closed multiple-rotating-shaft synchronous transmission structure.
[0006] The multiple rotating shafts include one driving rotating shaft and multiple identical positioning rotating shafts.
[0007] The multiple positioning rotating shafts can be synchronously rotated clockwise and counterclockwise around their central axes under the driving of the driving rotating shaft and the transmission of the steel wire ropes, and the maximum angle of clockwise rotation and counterclockwise rotation is 180°.
[0008] Each positioning rotating shaft coaxially clamps and installs a workpiece to be machined.
[0009] The utility model also has the following technical features:
[0010] Specifically, the axial projections of the central axes of the multiple identical positioning rotating shafts are located on the same circle.
[0011] Specifically, the closed multi-rotating shaft synchronous transmission structure comprises a driving rotating shaft, the driving rotating shaft comprises a driving rotating shaft body, two driving shaft annular grooves are arranged on the side wall of the driving rotating shaft body in the circumferential direction.
[0012] The groove bottom of the driving shaft annular groove is provided with a plurality of first steel wire rope clamp mounting holes in the radial direction, the plurality of first steel wire rope clamp mounting holes are uniformly arranged in the circumferential direction, and each first steel wire rope clamp mounting hole is capable of mounting a first steel wire rope clamp.
[0013] Specifically, the closed multi-rotating shaft synchronous transmission structure further comprises a plurality of identical positioning rotating shafts, the positioning rotating shaft comprises a positioning rotating shaft body, two positioning shaft annular grooves are arranged on the side wall of the positioning rotating shaft body in the circumferential direction, and the two positioning shaft annular grooves are arranged in the axial direction.
[0014] The groove bottom of the positioning shaft annular groove is provided with a plurality of second steel wire rope clamp mounting holes in the radial direction, the plurality of second steel wire rope clamp mounting holes are uniformly arranged in the circumferential direction, and each second steel wire rope clamp mounting hole is capable of mounting a second steel wire rope clamp.
[0015] Specifically, the groove width of the driving shaft annular groove is equal to the groove width of the positioning shaft annular groove.
[0016] The groove width of the driving shaft annular groove and the groove width of the positioning shaft annular groove are both greater than the diameter of the steel wire rope.
[0017] The diameter of the corresponding driving rotating shaft at the groove bottom of each driving shaft annular groove is equal to the diameter of the corresponding positioning rotating shaft at the groove bottom of each positioning shaft annular groove.
[0018] Specifically, the two ends of the steel wire rope are steel wire rope fixed ends, and the middle of the two steel wire rope fixed ends on the steel wire rope is a steel wire rope effective section.
[0019] The steel wire rope fixed end can be clamped by the first steel wire rope clamp or the second steel wire rope clamp, so that the steel wire rope effective section of the steel wire rope is always in a taut state.
[0020] The steel wire rope effective section comprises an integral circular arc winding section and a straight section, the circular arc winding section is wound and mounted in the driving shaft annular groove or the positioning shaft annular groove, and the straight section is arranged at the common tangent of the adjacent two rotating shafts.
[0021] The circular arc winding section and the straight section can be switched with each other when the rotating shaft rotates clockwise and counterclockwise.
[0022] Specifically, the lower inner side wall of the driving shaft annular groove at the axial upper end and the lower inner side wall of the plurality of positioning shaft annular grooves at the axial upper end are arranged on the same horizontal plane.
[0023] The lower inner side wall of the driving shaft annular groove at the axial lower end and the lower inner side wall of the plurality of positioning shaft annular grooves at the axial lower end are arranged on the same horizontal plane.
[0024] Compared with the prior art, the device has the following beneficial technical effects:
[0025] (I) The device can realize the motorized and synchronous reciprocating rotation of multiple workpieces to be machined, saves the manual operation and loading and unloading time, improves the machining efficiency and reduces the labor intensity. Compared with the prior art, the device only uses one power source and the transmission mechanism is a steel wire rope, so that the device has a simple, ingenious and reliable structure and function.
[0026] (II) When the device is applied, the workpiece to be machined needs to be loaded and unloaded only once, and the device can realize the cyclic production by controlling the starting power source and switching the rotation direction during the machining process.
[0027] (III) Compared with the gear transmission mode in the prior art, i.e. one power source drives multiple workpieces to be machined or each workpiece to be machined is separately provided with a power source, the device has a reduced cost and a reliable function. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 It is a structural schematic view of the device in the utility model.
[0029] Figure 2 It is a bottom view structural schematic view of the device in the utility model.
[0030] Figure 3 It is a front view structural schematic view of the positioning rotating shaft.
[0031] Figure 4 It is a sectional view structural schematic view of A-A section in the utility model. Figure 3
[0032] Figure 5 It is a structural schematic view of the effective section of the steel wire rope after the clockwise rotation of the device in the utility model.
[0033] Figure 6 It is a structural schematic view of the effective section of the steel wire rope after the counterclockwise rotation of the device in the utility model.
[0034] Figure 7 It is a front view structural schematic view of the device in the utility model when the device rotates counterclockwise.
[0035] Figure 8 For Figure 7 The schematic view of the sectional structure of the B-B section.
[0036] Figure 9 The schematic view of the structure of the positioning rotating shaft from the bottom.
[0037] Figure 10 The schematic view of the structure of the limiting block.
[0038] Figure 11 The schematic view of the structure of the workpiece to be machined during machining.
[0039] The meanings of the various reference numerals in the drawings are as follows: 1-rotating shaft, 2-steel wire rope, 3-main rotating shaft, 4-positioning rotating shaft, 5-workpiece to be machined, 6-first steel wire rope clamp head, 7-second steel wire rope clamp head, 8-limiting block.
[0040] 201-steel wire rope fixed end, 202-steel wire rope effective section.
[0041] 301-main rotating shaft body, 302-main shaft annular groove, 303-first steel wire rope clamp head mounting hole.
[0042] 401-positioning rotating shaft body, 402-positioning shaft annular groove, 403-second steel wire rope clamp head mounting hole, 405-positioning shaft rotating stroke limiting surface, 406-through hole.
[0043] 801-limiting block body, 802-mounting block, 803-adhesion limiting block, 804-limiting surface, 805-circular arc groove, 806-limiting block inclined surface, 807-limiting block mounting hole.
[0044] 20201-circular arc winding section, 20202-straight section.
[0045] 40601-radial inner convex half-ring limiting block, 40602-radial outer concave half-ring stroke groove.
[0046] The specific content of the utility model is further explained and described in detail in combination with the embodiments below. DETAILED DESCRIPTION
[0047] It should be noted that all instruments, equipment and parts in the utility model, such as no special description, all adopt the instruments, equipment and parts known in the prior art. For example, the main rotating shaft adopts the known main rotating shaft.
[0048] In accordance with the above technical solution, the specific embodiments of the utility model are given below. It should be noted that the utility model is not limited to the following specific embodiments, and any equivalent transformation based on the technical solutions of the present application falls within the scope of protection of the utility model.
[0049] Example:
[0050] This embodiment provides a clamping device for rotating workpieces based on wire rope transmission, such as... Figure 1 and Figure 2 As shown, it includes multiple rotating shafts 1 and multiple steel wire ropes 2. The multiple rotating shafts 1 are connected and driven by steel wire ropes 2 in sequence to form a closed multi-rotating shaft synchronous transmission structure.
[0051] The multiple rotation axes 1 include one active rotation axis 3 and multiple identical positioning rotation axes 4.
[0052] Multiple positioning rotating shafts 4 can rotate clockwise and counterclockwise synchronously around their own central axis under the drive of the active rotating shaft 3 and the transmission action of the wire rope 2. The maximum angle of clockwise and counterclockwise rotation is 180°.
[0053] Each positioning rotary axis 4 also has a workpiece 5 coaxially clamped and mounted on it.
[0054] In this embodiment, the number of positioning rotation axes 4 is 5.
[0055] In this embodiment, the number of steel wire ropes 2 is 6.
[0056] In this embodiment, one wire rope 2 connects only two adjacent rotating shafts 1; six wire ropes 2 can connect six rotating shafts 1 in series.
[0057] In this embodiment, the active rotating shaft 3 is connected to a power source and can be driven by the power source. In this embodiment, the power source is a pneumatic rotating cylinder or a hydraulic rotating cylinder. The pneumatic rotating cylinder adopts a commonly known pneumatic rotating cylinder in the art, and the hydraulic rotating cylinder adopts a commonly known hydraulic rotating cylinder in the art. The active rotating shaft 3 can reciprocate around its own central axis under the action of the power source.
[0058] In this embodiment, the initial state of the workpiece 5 being clamped and installed on the positioning rotation axis 4 is a state in which the position of an arc notch of the workpiece 5 and the cutting tool are matched, that is, a state in which the arc notch of the workpiece 5 no longer needs to be rotated and can be processed; the cutting tool is a commonly known cutting tool in the art.
[0059] In this embodiment, the structural schematic diagram of the workpiece 5 to be processed is as follows: Figure 11 As shown; the workpiece 5 to be processed adopts the commonly used workpieces known in this field.
[0060] In this embodiment, the clamping and mounting method for the workpiece 5 to be processed adopts a clamping and mounting method commonly known in the art.
[0061] As a preferred arrangement of the embodiment, the axial projections of the central axes of the plurality of identical positioning rotating shafts 4 are located on the same circle.
[0062] As a preferred arrangement of the embodiment, the closed multi-rotating shaft synchronous transmission structure comprises a driving rotating shaft 3, which comprises a driving rotating shaft body 301, and two driving shaft annular grooves 302 are formed on the side wall of the driving rotating shaft body 301 in the circumferential direction and arranged along the axial direction.
[0063] The groove bottom of the driving shaft annular groove 302 is radially provided with a plurality of first steel wire rope clamp head mounting holes 303, which are uniformly arranged in the circumferential direction. Each first steel wire rope clamp head mounting hole 303 is capable of mounting a first steel wire rope clamp head 6, which can clamp the end of the steel wire rope 2.
[0064] As a preferred arrangement of the embodiment, the closed multi-rotating shaft synchronous transmission structure further comprises a plurality of identical positioning rotating shafts 4, as shown in Figure 3 The positioning rotating shaft 4 comprises a positioning rotating shaft body 401, and two positioning shaft annular grooves 402 are formed on the side wall of the positioning rotating shaft body 401 in the circumferential direction and arranged along the axial direction.
[0065] As shown in Figure 4 The groove bottom of the positioning shaft annular groove 402 is radially provided with a plurality of second steel wire rope clamp head mounting holes 403, which are uniformly arranged in the circumferential direction. Each second steel wire rope clamp head mounting hole 403 is capable of mounting a second steel wire rope clamp head 7, which can clamp the end of the steel wire rope 2.
[0066] In the embodiment, the first steel wire rope clamp head 6 and the second steel wire rope clamp head 7 are both commonly used steel wire rope clamp heads known in the art.
[0067] In the embodiment, one steel wire rope 2 in one positioning shaft annular groove 402 of each positioning rotating shaft 4 is connected to an adjacent positioning rotating shaft 4, and one steel wire rope 2 in the other positioning shaft annular groove 402 of each positioning rotating shaft 4 is connected to an adjacent other positioning rotating shaft 4.
[0068] In the embodiment, the first steel wire rope clamp head 6 can be installed in the first steel wire rope clamp head mounting hole 303 as needed, and the second steel wire rope clamp head 7 can be installed in the second steel wire rope clamp head mounting hole 403 as needed.
[0069] As a preferred arrangement of the embodiment, as shown in Figure 7 The groove width of the driving shaft annular groove 302 is equal to the groove width of the positioning shaft annular groove 402.
[0070] The groove width of the driving shaft annular groove 302 and the groove width of the positioning shaft annular groove 402 are both greater than the diameter of the steel wire rope 2.
[0071] The diameter of the corresponding driving rotating shaft 3 at the groove bottom of each driving shaft annular groove 302 is equal to the diameter of the corresponding positioning rotating shaft 4 at the groove bottom of each positioning shaft annular groove 402.
[0072] As a preferred scheme of the embodiment, as shown in Figure 5 and Figure 6 The two ends of the steel wire rope 2 are steel wire rope fixed ends 201, and the middle of the two steel wire rope fixed ends 201 on the steel wire rope 2 is a steel wire rope effective section 202.
[0073] The steel wire rope fixed end 201 can be clamped by the first steel wire rope clamp head 6 or the second steel wire rope clamp head 7, so that the steel wire rope effective section 202 of the steel wire rope 2 is always in a taut state.
[0074] The steel wire rope effective section 202 includes an integral circular arc winding section 20201 and a straight line section 20202, the circular arc winding section 20201 is wound and installed in the driving shaft annular groove 302 or the positioning shaft annular groove 402, and the straight line section 20202 is arranged at the common tangent of the adjacent two rotating shafts 1.
[0075] The circular arc winding section 20201 and the straight line section 20202 can be switched with each other when the rotating shaft 1 rotates clockwise and counterclockwise.
[0076] In the embodiment, the lengths and diameters of the six steel wire ropes 2 are the same.
[0077] In the embodiment, the common tangent is the common tangent of the adjacent two rotating shafts 1 on the outside of the closed multi-rotating shaft synchronous transmission structure surrounded by the six rotating shafts 1.
[0078] In the embodiment, the lengths of the circular arc winding sections 20201 of the six steel wire rope effective sections 202 are the same, and the corresponding angles of the six circular arc winding sections 20201 are also the same; the lengths of the straight line sections 20202 of the six steel wire rope effective sections 202 are also the same.
[0079] As a preferred scheme of the embodiment, the lower inner side walls of the driving shaft annular grooves 302 at the axial upper end and the lower inner side walls of the plurality of positioning shaft annular grooves 402 at the axial upper end are arranged on the same horizontal plane.
[0080] The lower inner side walls of the driving shaft annular grooves 302 at the axial lower end and the lower inner side walls of the plurality of positioning shaft annular grooves 402 are arranged on the same horizontal plane.
[0081] In the embodiment, the inner side wall of the lower part of the annular groove 302 of the driving shaft at the upper axial end is located at the same position in the axial direction of the driving rotating shaft 3 as the inner side wall of the lower part of the annular groove 402 of the positioning shaft at the upper axial end in the axial direction of the positioning rotating shaft 4, and the inner side wall of the lower part of the annular groove 302 of the driving shaft at the lower axial end is located at the same position in the axial direction of the driving rotating shaft 3 as the inner side wall of the lower part of the annular groove 402 of the positioning shaft at the lower axial end in the axial direction of the positioning rotating shaft 4, which can further ensure the accuracy of synchronous transmission.
[0082] In the embodiment, as shown in Figure 9 each positioning rotating shaft body 401 is coaxially provided with a through hole 406 penetrating in the axial direction, the left half of the positioning rotating shaft body 401 at the bottom of the through hole 406 is provided with a radially inner convex half-ring limiting block 40601, and the right half of the positioning rotating shaft body 401 at the bottom of the through hole 406 is provided with a radially outer concave half-ring stroke groove 40602; the inner diameter of the radially inner convex half-ring limiting block 40601 is smaller than the inner diameter of the through hole 406, the inner diameter of the radially outer concave half-ring stroke groove 40602 is larger than the inner diameter of the through hole 406, and the stepped surface formed between the circumferential two ends of the radially inner convex half-ring limiting block 40601 and the circumferential two ends of the radially outer concave half-ring stroke groove 40602 is a positioning shaft rotating stroke limiting surface 405, which can be attached to the fixed limiting block 8 to limit the rotating stroke.
[0083] In the embodiment, as shown in Figure 10 the limiting block 8 includes a limiting block body 801 with a T-shaped cross section, and the limiting block body 801 includes an integrated mounting block 802 and an attached limiting block 803, which are perpendicular to each other.
[0084] In the embodiment, the left and right two side surfaces of the attached limiting block 803 are limiting surfaces 804, which can be attached to the positioning shaft rotating stroke limiting surface 405 to limit the circumferential position of the positioning rotating shaft 4.
[0085] In the embodiment, two circular arc grooves 805 are formed at the two right-angle corners where the attached limiting block 803 and the mounting block 802 are connected, and a limiting block inclined surface 806 is formed on the side of each circular arc groove 805 away from the attached limiting block 803.
[0086] In the embodiment, a plurality of vertically penetrating limiting block mounting holes 807 are formed in the mounting block 802, and the mounting block 802 can be mounted to a limiting block mounting bracket through the plurality of limiting block mounting holes 807. The limiting block mounting bracket is located below the positioning rotating shaft 4 and does not contact the positioning rotating shaft 4.
[0087] In the embodiment, the axial direction of the rotating shaft 1 is the vertical direction.
[0088] In this embodiment, the limit block mounting frame is commonly used in the art.
[0089] In this embodiment, the limit block inclined surface 806 and the circular arc groove 805 can avoid the influence of the installation block 802 on the limit surface 804 and the positioning shaft rotation stroke limiting surface 405.
[0090] In this embodiment, in the initial state, one positioning rotation shaft 4 and one limit block 8 are taken as an example, one limit surface 804 of the abutting limit block 803 and one positioning shaft rotation stroke limiting surface 405 are abutted, the positioning rotation shaft 4 can rotate around its central axis under the driving of the driving rotation shaft 3 and the transmission of the steel wire rope 2, so that the other limit surface 804 of the abutting limit block 803 and the other positioning shaft rotation stroke limiting surface 405 are abutted to realize limiting, at this time, the rotation angle of the positioning rotation shaft 4 is 180°, that is, the rotation angle of the workpiece 5 to be processed is 180°.
[0091] In this embodiment, the limit block 8 and the positioning rotation shaft 4 are one-to-one corresponding; the five limit blocks 8 are all the same; in this embodiment, the position of the limit block 8 does not change when the positioning rotation shaft 4 rotates.
[0092] In this embodiment, the position and size precision of the limit block 8 are used to realize limiting control.
[0093] The principle of the device in this embodiment includes:
[0094] First, all the rotation shafts 1 form a series of linkage systems, one dynamic and all dynamic. Take the counterclockwise rotation of the driving rotation shaft 3 in the device as an example, when the driving rotation shaft 3 rotates, the steel wire rope 2 at the axial upper end is wound and wound, and the adjacent positioning rotation shaft 4 is pulled to rotate, and the steel wire rope 2 at the axial upper end is released. Figure 8 The positioning rotation shaft 4 is wound and wound at the axial lower end, and the other adjacent positioning rotation shaft is pulled by the steel wire rope 2; when the other adjacent positioning rotation shaft rotates, the steel wire rope 2 at the axial upper end is wound and wound, and the next adjacent positioning rotation shaft 4 is pulled by the steel wire rope 2 at the axial upper end; according to the same transmission method, until the last positioning rotation shaft 4 is transmitted.
[0095] Secondly, the steel wire effective section 202 of each steel wire 2 is divided into a straight section 20202 and an arc winding section 20201. The length of the straight section 20202 is equal to the length of the common tangent of the groove bottom circles of the adjacent two rotating shafts 1 in the same horizontal plane, and the length of the arc winding section 20201 is equal to the arc length corresponding to the rotation angle of the rotating shaft 1. During reciprocating rotation, the straight section 20202 and the arc winding section 20201 will be switched accordingly; the steel wire fixed end 201 cannot be in the steel wire effective section 202, so that the straight section 20202 of each steel wire 2 is always tangent to the rotating shaft 1 at the same time, and the arc winding section 20201 is always wound on the relatively active rotating shaft 1, so that the steel wire 2 and the rotating shaft 1 always remain in the state of being taut and not relaxed and tangent.
[0096] Thirdly, since the diameter of the corresponding active rotating shaft 3 at the groove bottom of each active shaft annular groove 302 is equal to the diameter of the corresponding positioning rotating shaft 4 at the groove bottom of each positioning shaft annular groove 402, all rotating shafts 1, i.e. all workpieces 5 to be processed, can be linked synchronously, in the same direction and at the same angle.
[0097] Fourthly, the limiting block 8 is used for mechanical limiting to ensure the precision of the device in the embodiment and improve the reliability. That is, when the positioning rotating shaft 4 driven by the steel wire 2 rotates to the designed angle, the positioning shaft rotation stroke limiting surface 405 on the positioning rotating shaft 4 also contacts the limiting surface 804 on the limiting block 8 at the same time.
Claims
1. A clamping device for rotating workpieces based on wire rope transmission, characterized in that, It includes multiple rotating shafts (1) and multiple steel wire ropes (2). The multiple rotating shafts (1) are connected and driven by steel wire ropes (2) in sequence to form a closed multi-rotating shaft synchronous transmission structure. The plurality of rotating axes (1) includes one active rotating axis (3) and a plurality of identical positioning rotating axes (4); The multiple positioning rotating shafts (4) can rotate clockwise and counterclockwise synchronously around their own central axis under the drive of the active rotating shaft (3) and the transmission action of the wire rope (2). The maximum angle of clockwise and counterclockwise rotation is 180°. Each of the aforementioned positioning rotation axes (4) also has a workpiece (5) coaxially clamped and mounted on it.
2. The fixture for rotating workpieces based on wire rope transmission as described in claim 1, characterized in that, The axial projections of the central axes of the multiple identical positioning rotation axes (4) lie on the same circle.
3. The fixture for rotating workpieces based on wire rope transmission as described in claim 1, characterized in that, The closed multi-rotation axis synchronous transmission structure includes an active rotation axis (3), the active rotation axis (3) includes an active rotation axis body (301), and two active axis annular grooves (302) are opened in the circumferential direction on the side wall of the active rotation axis body (301). The two active axis annular grooves (302) are arranged in the axial direction. The bottom of the annular groove (302) of the drive shaft is provided with a plurality of first wire rope clamp mounting holes (303) along the radial direction. The plurality of first wire rope clamp mounting holes (303) are evenly distributed along the circumference. Each first wire rope clamp mounting hole (303) can be equipped with a first wire rope clamp (6). The first wire rope clamp (6) can clamp the end of the wire rope (2).
4. The fixture for rotating workpieces based on wire rope transmission as described in claim 3, characterized in that, The closed multi-rotation axis synchronous transmission structure also includes multiple identical positioning rotation axes (4). The positioning rotation axis (4) includes a positioning rotation axis body (401). Two positioning axis annular grooves (402) are opened circumferentially on the side wall of the positioning rotation axis body (401). The two positioning axis annular grooves (402) are arranged along the axial direction. The bottom of the positioning shaft annular groove (402) is provided with a plurality of second wire rope clamp mounting holes (403) along the radial direction. The plurality of second wire rope clamp mounting holes (403) are evenly distributed along the circumference. A second wire rope clamp (7) can be installed in each second wire rope clamp mounting hole (403). The second wire rope clamp (7) can clamp the end of the wire rope (2).
5. The fixture for rotating workpieces based on wire rope transmission as described in claim 4, characterized in that, The width of the annular groove (302) of the drive shaft is equal to the width of the annular groove (402) of the positioning shaft; The groove width of the drive shaft annular groove (302) and the groove width of the positioning shaft annular groove (402) are both greater than the diameter of the wire rope (2); The diameter of the active rotating shaft (3) corresponding to the bottom of each active shaft annular groove (302) is equal to the diameter of the positioning rotating shaft (4) corresponding to the bottom of each positioning shaft annular groove (402).
6. The clamping device for rotating workpieces based on wire rope transmission as described in claim 4, characterized in that, The two ends of the wire rope (2) are the wire rope fixed ends (201), and the middle of the two wire rope fixed ends (201) on the wire rope (2) is the effective section (202) of the wire rope; The fixed end (201) of the wire rope can be clamped by the first wire rope clamp (6) or the second wire rope clamp (7), so that the effective section (202) of the wire rope (2) is always in a taut state. The effective section (202) of the wire rope includes an integrally formed arc-wound section (20201) and a straight section (20202). The arc-wound section (20201) is wound and installed in the annular groove (302) of the drive shaft or the annular groove (402) of the positioning shaft, and the straight section (20202) is arranged at the common tangent of two adjacent rotating shafts (1). The circular arc winding segment (20201) and the straight line segment (20202) can switch between each other when the rotating shaft (1) rotates clockwise and counterclockwise.
7. The fixture for rotating workpieces based on wire rope drive as described in claim 4, characterized in that, The lower inner wall of the active shaft annular groove (302) located at the upper axial end and the lower inner wall of multiple positioning shaft annular grooves (402) located at the upper axial end are arranged on the same horizontal plane. The lower inner wall of the active shaft annular groove (302) located at the lower axial end and the lower inner wall of multiple positioning shaft annular grooves (402) located at the lower axial end are arranged on the same horizontal plane.