CN212341054U

CN212341054U - Self-rotating clamp

Info

Publication number: CN212341054U
Application number: CN202022005041.3U
Authority: CN
Inventors: 张磊; 崔亚斌
Original assignee: Chongqing Zhence Science And Technology Co ltd
Current assignee: Chongqing Zhence Science And Technology Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-01-12
Anticipated expiration: 2030-09-14

Abstract

The utility model provides a self-rotating clamp, which relates to the field of clamps and comprises a clamp seat, a clamp body, a rotating mechanism, a limiting mechanism and a power transmission mechanism; the fixture body is rotationally connected with the fixture seat through a rotating mechanism and can rotate around the axis of the fixture body, and a plurality of clamping assemblies for clamping workpieces are arranged in the fixture body; the limiting mechanisms are at least two and distributed on two end faces of the clamp seat, and each limiting mechanism is connected with the clamp seat to prevent the clamp body from axially moving; the power transmission mechanism is connected with any end face of the fixture body and is used for directly transmitting the power of the external power transmission cylinder to the fixture body. It has solved the big problem of the anchor clamps body processing degree of difficulty among the prior art.

Description

Self-rotating clamp

Technical Field

The utility model belongs to the technical field of anchor clamps and specifically relates to relate to rotation formula anchor clamps.

Background

The industrial CT is a precise nondestructive testing device which can visually and clearly observe the internal structure and various defects of a workpiece, and in order to obtain higher detection precision, the workpiece to be detected can do precise rotary positioning motion; chinese patent No. CN107283191A discloses a clamping system for large-scale nearly cylindrical workpiece, which comprises a clamp body capable of being split into an upper clamp body and a lower clamp body, wherein the same side edge of the upper clamp body and the lower clamp body is provided with a driving tooth and the base is provided with a driving tooth engaged with the driving tooth, the outer surface of the clamp body is provided with a groove for clamping the clamp body on the base, the driving tooth drives the clamp body to rotate through the driving tooth, but the upper clamp body and the lower clamp body need to be provided with the driving tooth after being assembled, the driving tooth needs to be well engaged with the driving tooth on the base and needs to be processed with the groove on the outer surface of the upper clamp body and the lower clamp body, so that the processing difficulty of the upper clamp body and the lower clamp body is large.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model provides a rotation formula anchor clamps, it has solved the great problem of the anchor clamps body processing degree of difficulty of horizontal industry CT equipment among the prior art.

According to the embodiment of the utility model, the self-rotating clamp comprises a clamp seat, a clamp body, a rotating mechanism, a limiting mechanism and a power transmission mechanism; the fixture body is rotationally connected with the fixture seat through the rotating mechanism and can rotate around the axis of the fixture body, and a plurality of clamping assemblies for clamping workpieces are arranged in the fixture body; the limiting mechanisms are at least two and distributed on two end faces of the clamp seat, and each limiting mechanism is connected with the clamp seat to prevent the clamp body from axially moving; the power transmission mechanism is connected with any end face of the fixture body and is used for directly transmitting the power of the external power transmission cylinder to the fixture body.

Compared with the prior art, the utility model discloses following beneficial effect has: the limiting mechanisms are distributed on the two end faces of the clamp seat and are connected with the clamp seat, and the limiting mechanisms axially limit the clamp body when the clamp body rotates, so that the clamp body cannot axially move in the rotating process; the power transmission mechanism is connected with any end face of the fixture body, so that the power of the external power transmission cylinder is directly transmitted to the fixture body by the power transmission mechanism to enable the fixture body to rotate; therefore, by adopting the scheme, the limiting of the axis of the clamp body is realized by utilizing each limiting mechanism, the mode that the clamp body is processed to be used for clamping and limiting the groove in the prior art is replaced, the driving mode that the clamp body is driven to rotate by utilizing gear engagement in the prior art is changed into the mode that the power transmission mechanism is used for directly transmitting the power of the external power transmission cylinder to the clamp body, so that the situation that the groove and the transmission gear are required to be processed simultaneously on the clamp body is avoided, and the processing difficulty of the clamp body is further reduced.

Furthermore, each limiting mechanism comprises an installation seat and a third roller, each installation seat is fixedly connected to the end face of the fixture seat, each third roller is rotatably connected to each installation seat, and the wheel surface of each third roller is tangent to the end face of the fixture body.

Furthermore, the power transmission mechanism comprises an insert block and an annular transmission disc, one end face of the transmission disc is fixedly connected to any one end face of the clamp body, a flanging deviating from the clamp body is fixedly arranged on an inner ring of the transmission disc, and the insert block is fixedly arranged at one end deviating from the clamp body of the transmission disc.

Further, the fixture seat comprises an upper fixture seat and a lower fixture seat, the upper fixture seat and the lower fixture seat are detachably connected and enclose a first annular cavity matched with the outer surface of the fixture body, and the fixture body is rotatably connected in the first annular cavity through the rotating mechanism.

Furthermore, each clamping assembly comprises an adjusting mechanism and a clamping block arranged inside the clamp body, each clamping block is connected with the clamp body through each adjusting mechanism, and each adjusting mechanism is used for adjusting the distance between each clamping block and a workpiece.

Furthermore, a circular groove is formed in the clamp body, one end of each clamping block is located in the circular groove, the other end of each clamping block extends towards the center of the clamp body, two sides of each clamping block are respectively provided with a stop block, and one end of each stop block is fixedly connected in the circular groove, and the other end of each stop block is respectively abutted to each clamping block.

Furthermore, each adjusting mechanism includes a first screw and a rotating component, a threaded hole is arranged on the fixture body along the radial direction of the fixture body, each first screw is in threaded connection with the threaded hole, and one end of each first screw, which faces the clamping block, is rotatably connected with the clamping block through the rotating component.

Furthermore, the rotating assembly comprises second screws, one end of each clamping block, which is located in the circular groove, is provided with a through hole, each clamping block is provided with a mounting groove for mounting the second screw, a rod part of each second screw penetrates through each through hole and is fixedly connected with a rod part of each first screw, and a head part of each second screw is located in the mounting groove.

Furthermore, the rotating mechanism comprises a first roller and a second roller, each of the first rollers and each of the second rollers are rotatably connected in the clamp seat, the first roller is located at the top of the upper clamp seat, each of the second rollers is located at the bottom of the lower clamp seat, and the first roller and the two second rollers are used for carrying out three-point support on the clamp body.

Further, still including adjusting the seat, the bottom of anchor clamps seat is followed down press from both sides specific axial sliding connection in adjust on the seat just be equipped with on the seat and be used for the locking down the anchor clamps seat is followed press from both sides specific axial sliding's locking mechanism, still be equipped with on the seat of adjusting and be used for adjusting the first adjustment mechanism of anchor clamps seat transverse position down and be used for adjusting adjust the second adjustment mechanism of seat height.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a perspective view of the fixture mount of FIG. 1;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

FIG. 5 is a first perspective view of the clamp body of FIG. 1;

FIG. 6 is a second perspective view of the clamp body of FIG. 1;

FIG. 7 is a front view of the clamp body of FIG. 6;

FIG. 8 is a right side view of FIG. 5;

FIG. 9 is a top view of FIG. 6;

FIG. 10 is a sectional view taken along line B-B of FIG. 9;

FIG. 11 is a cross-sectional view taken along line C-C of FIG. 9;

fig. 12 is a partially enlarged view of fig. 11 at a.

In the above drawings: 1. an upper clamp seat; 2. a lower clamp base; 3. an upper clamp body; 4. a lower clamp body; 5. a first screw; 6. a first roller; 7. a second roller; 8. a clamping block; 9. a stopper; 10. a first screw; 11. a threaded sleeve; 12. a second screw; 13. a mounting seat; 14. a third roller; 15. a drive plate; 16. an insert block; 17. an adjusting seat; 18. a slide plate; 19. a T-bolt; 20. a T-shaped groove; 21. a third screw; 22. a protrusion; 23. a base plate; 24. an ear mount; 25. a pin bolt; 26. a bushing; 27. a sleeve; 28. a second screw; 29. and (7) lifting lugs.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 1, an embodiment of the present invention provides a self-rotating type clamp, which includes a clamp seat, a clamp body, a rotating mechanism, a limiting mechanism and a power transmission mechanism; in order to facilitate the installation of a workpiece in the fixture body, the fixture body comprises an upper fixture body 3 and a lower fixture body 4 which are semi-annular, the upper fixture body 3 and the lower fixture body 4 are detachably connected and enclose a second annular cavity for the workpiece to pass through, the fixture body is rotatably connected with the fixture seat through a rotating mechanism, and the fixture body can rotate around the axis of the fixture body, as shown in fig. 7 and 8, lug seats 24 for connection are fixedly arranged on two end faces of the upper fixture body 3 and the lower fixture body 4, as shown in fig. 6 and 9, in order to ensure the accuracy of the fastened upper fixture body 3 and the lower fixture body 4, the upper fixture body 3 and the lower fixture body 4 are fastened by four points, two points on one diagonal line are connected by common bolts, and two points on the other diagonal line are connected by pin bolts 25; in the process of butt joint and buckling of the upper clamp body 3 and the lower clamp body 4, the upper clamp body 3 and the lower clamp body 4 can be accurately buckled through a guide pin arranged on the lower clamp body 4 and a positioning hole positioned on the upper clamp body 3, the specific arrangement mode of the guide pin is a conventional technical means in the field, and details are not repeated here; as shown in fig. 9 and 10, in order to reduce the processing of high-precision mounting holes directly on the upper clamp body 3 and the lower clamp body 4 and facilitate maintenance and replacement, a bush 26 is embedded in the lug seat 24 connected by a stud bolt 25, and the stud bolt 25 is in transition fit with an inner hole of the bush 26; due to the transitional fit between the bushing 26 and the stud bolt 25, in order to facilitate the stud bolt 25 to be pulled out of the bushing 26, pin pullers are fixedly arranged at the top ends of the lug seats 24 which are connected by the stud bolt 25 and are positioned on the upper clamp body 3, each pin puller comprises a vertical sleeve 27 and a second screw 28, each sleeve 27 is vertically and fixedly arranged on each lug seat 24, one end of each second screw 28 extends into each sleeve 27 and is fixedly connected with one end of each stud bolt 25, the other end of each second screw 28 is connected with a nut, and each second screw 28 is in threaded connection with each sleeve 27; when the stud bolt 25 needs to be pulled out, the nut on the stud bolt 25 is disassembled, then the nut on the second screw 28 is screwed in, and as the nut on the second screw 28 cannot be screwed in continuously, the second screw 28 is further screwed out upwards until the second screw 28 pulls out the stud bolt 25 from the bushing 26; a plurality of clamping assemblies for clamping workpieces are arranged in the clamp body; the limiting mechanisms are at least two and distributed on two end faces of the clamp seat, and each limiting mechanism is connected with the clamp seat to prevent the clamp body from axially moving; the power transmission mechanism is connected with any end face of the fixture body and used for directly transmitting the power of an external power transmission cylinder to the fixture body, and a lifting lug 29 for lifting is fixedly arranged at the top end of the fixture seat for facilitating the lifting of the fixture seat.

The limiting mechanisms are distributed on the two end faces of the clamp seat and are connected with the clamp seat, and the limiting mechanisms axially limit the clamp body when the clamp body rotates, so that the clamp body cannot axially move in the rotating process; the power transmission mechanism is connected with any end face of the fixture body, so that the power of the external power transmission cylinder is directly transmitted to the fixture body by the power transmission mechanism to enable the fixture body to rotate; therefore, by adopting the scheme, the limiting of the axis of the clamp body is realized by utilizing each limiting mechanism, the mode that the clamp body is processed to be used for clamping and limiting the groove in the prior art is replaced, the driving mode that the clamp body is driven to rotate by utilizing gear engagement in the prior art is changed into the mode that the power transmission mechanism is used for directly transmitting the power of the external power transmission cylinder to the clamp body, so that the situation that the groove and the transmission gear are required to be processed simultaneously on the clamp body is avoided, and the processing difficulty of the clamp body is further reduced.

As shown in fig. 2 and fig. 3, according to another embodiment of the present invention, each of the limiting mechanisms includes a mounting seat 13 and a third roller 14, each of the mounting seats 13 is respectively and fixedly connected to the end surface of the fixture seat, each of the third rollers 14 is rotatably connected to each of the mounting seats 13, and the wheel surface of each of the third rollers 14 is respectively tangent to the end surface of the fixture body; by adopting the scheme, the third rollers 14 which are in contact with the two end faces of the fixture body realize axial limiting on the fixture body, the end faces of the fixture body are in rolling friction with the third rollers 14 in the autorotation process of the fixture body, and the friction resistance is small; in order to improve the axial limiting effect of the butt clamp body, the number of the limiting mechanisms is four, and the four limiting mechanisms are symmetrically distributed on the two end faces of the clamp seat in a group.

As shown in fig. 1 and 5, according to another embodiment of the present invention, the number of the power transmission mechanisms is two and the two power transmission mechanisms are respectively disposed on the upper clamp body 3 and the lower clamp body 4, the power transmission mechanism includes an insert 16 and an annular transmission disc 15, one end surface of the transmission disc 15 is fixedly connected to any end surface of the clamp body, a flange deviating from the clamp body is fixedly disposed on an inner ring of the transmission disc 15, the diameter of the inner ring of the transmission disc 15 is equal to the diameter of the inner ring of the clamp body, and the insert 16 is fixedly disposed at one end of the transmission disc 15 deviating from the clamp body; during the use, peg graft power transmission mechanism and the joint end of outside power transmission section of thick bamboo, the turn-ups is used for preventing the flexural deformation of outside power transmission section of thick bamboo rotation in-process, abaculus 16 is used for carrying out the joint with a power transmission section of thick bamboo and then directly transmits power for the anchor clamps specifically (similar to the locating pin), and an outside power transmission section of thick bamboo is conventional device, and its specific structure here is no longer repeated.

As shown in fig. 1 and fig. 2, according to another embodiment of the present invention, the fixture base includes an upper fixture base 1 and a lower fixture base 2, the upper fixture base 1 and the lower fixture base 2 are detachably connected and enclose a first annular cavity matching with an outer surface of the fixture body, and the fixture body is rotatably connected in the first annular cavity through the rotating mechanism; the clamp body is integrally and rotatably connected into the clamp seat, and the clamp seat limits the clamp body, so that radial runout of the clamp body in the autorotation process is reduced, and the clamp body is more stable in rotation; the upper clamp seat 1 and the lower clamp seat 2 which are detachably connected enable the clamp body and the clamp seat to be more convenient to disassemble and assemble.

As shown in fig. 1 and 5, according to another embodiment of the present invention, the clamping assembly includes an adjusting mechanism and a clamping block 8 disposed inside the clamp body, the clamping block 8 is connected to the clamp body through the adjusting mechanism, the adjusting mechanism is used to adjust the distance between the clamping block 8 and the clamped object, and preferably, the number of the clamping mechanisms is four and is uniformly distributed in the clamp body; by adopting the scheme, the distance between the clamping block 8 and the workpiece can be adjusted through the adjusting mechanism, so that the clamping force of the workpiece can be adjusted, and the workpiece can adapt to workpieces with different diameters.

As shown in fig. 5 and 6, according to another embodiment of the present invention, a circular groove is disposed in the fixture body, one end of the clamping block 8 is located in the circular groove and the other end extends toward the center of the fixture body, two sides of the clamping block 8 are respectively provided with a stop dog 9, one end of each stop dog 9 is fixedly connected in the circular groove and the other end of each stop dog is respectively abutted against the clamping block 8; by adopting the scheme, the stop blocks 9 at the two ends of the clamping block 8 can clamp the clamping block 8 in a limiting manner and the limiting effect of the circular groove on the clamping block 8, so that the clamping block 8 can clamp a workpiece more stably and is not easy to shake.

As shown in fig. 9, 11 and 12, according to another embodiment of the present invention, in order to realize that the distance between the clamping block 8 and the workpiece is adjustable, each of the adjusting mechanisms includes a first screw 10 and a rotating component, a threaded hole is radially provided on the clamp body along the clamp body, each of the first screws 10 is in threaded connection with the threaded hole, and one end of the first screw 10 facing the clamping block 8 is rotatably connected with the clamping block 8 through the rotating component.

As shown in fig. 9, 11 and 12, according to another embodiment of the present invention, the rotating component includes a second screw 12, the rod of the first screw 10 is connected with a threaded sleeve 11, the first screw 10 and the outer surface of the threaded sleeve 11 are full threads and the first screw 10 and the threaded sleeve 11 are connected in the threaded hole, one end of the rod of the first screw 10 departing from the head is provided with a hexagonal head, the threaded sleeve 11 faces the one end of the first screw 10 is provided with a hexagonal groove, the hexagonal head of the first screw 10 is embedded into the hexagonal groove of the threaded sleeve 11 and the first screw 10 and the threaded sleeve 11 are fixedly connected, for convenience of installation of the second screw 12, one end of the clamping block 8 located in the circular groove is provided with a through hole and the clamping block 8 is provided with an installation groove along the specific axial direction of the clamp, the rod of the second screw 12 passes through the through hole and deviates from the one end of the threaded sleeve 11 and is fixedly connected with the threaded sleeve 10 The head of the second screw 12 is located in the mounting groove, in order to make the screw sleeve 11 more stable in the process of pushing into the clamping block 8, one end of the screw sleeve 11 away from the first screw 10 is provided with an arc-shaped dome, one end of the clamping block 8 located in the circular groove is provided with a groove matched with the dome, the dome is located in the groove of the clamping block 8 to enable an operator to screw in the first screw 10, the dome of the screw sleeve 11 rotates in the groove in the clamping block 8 and jacks up the clamping block 8 towards the center of the clamp body in the process of driving the screw sleeve 11 to screw in, so that the distance between the clamping block 8 and the workpiece is adjusted, similarly, the first screw 10 is reversely screwed out, the first screw 10 drives the screw sleeve 11 to screw out, and the screw sleeve 11 pulls the clamping block 8 through the second screw 12 to enable the clamping block 8 to be far away from the workpiece; preferably, it should be understood that the second screws 12 and the threaded sleeves 11 may be integrated, that is, the shaft of each second screw 12 passes through each through hole and is fixedly connected with the shaft of each first screw 10, and the head of each second screw 12 is located in the mounting groove.

As shown in fig. 1, 2 and 4, according to another embodiment of the present invention, the rotating mechanism includes a first roller 6 and two second rollers 7, the first roller 6 is located at the top of the clamp seat and is rotatably connected to the clamp seat, in order to realize that the distance between the first roller 6 and the workpiece is adjustable, a first screw 5 is vertically and threadedly connected to the top of the upper clamp seat 1, one end of the first screw 5 penetrates into the interior of the upper clamp seat 1 and is rotatably connected to the first roller 6, in order to reduce the friction between the first roller 6 and the workpiece, the first roller 6 is preferably a universal ball wheel, in order to improve the clamping effect of the first roller 6 on the workpiece, the number of the first screw 5 and the first roller 6 is preferably two, and the specific manner of rotatably connecting the first roller 6 and the first screw 5 is a conventional technical means in the art, are not described in detail herein; a cavity for mounting each second roller 7 is formed in the bottom of the lower clamp base 2, each second roller 7 is rotatably connected in the cavity, and the specific implementation manner of rotatably connecting each second roller 7 and the lower clamp base 2 is a conventional technical means in the field and is not described herein again; in order to ensure that the first roller 6 and the two second rollers 7 are used for carrying out three-point support on the fixture body, a part of each second roller 7 extends out of the cavity, the rotation axes of the first roller 6 and each second roller 7 are parallel to the axis of the fixture body, and the number of rollers of the rotating mechanism is understood to realize at least three-point support on the fixture body and is not limited to realize only three-point support; by adopting the technical scheme, the rotating mechanism is simple in structure, convenient to realize and stable in clamping.

As shown in fig. 1, according to another embodiment of the present invention, in use, in order to adjust the axis of the fixture body to be coaxial with an external power transmission cylinder, an adjusting seat 17 is further provided, a sliding plate 18 is fixedly disposed at the bottom of the lower fixture seat 2, the sliding plate 18 is slidably connected to the adjusting seat 17 along the axial direction of the fixture body, a locking mechanism for locking the sliding plate 18 to slide is disposed on the adjusting seat 17, and a first adjusting mechanism for adjusting the transverse position of the sliding plate 18 and a second adjusting mechanism for adjusting the height of the adjusting seat 17 are further disposed on the adjusting seat 17; the sliding plate 18 comprises a lower horizontal section and bending sections which are positioned at two ends of the lower horizontal section and are bent upwards, one end of each bending section, which is deviated from the horizontal section, is bent outwards to form an upper horizontal section, two bulges 22 which are parallel to the axial direction of the fixture body are fixedly arranged at the top of the adjusting seat 17, the bottom end of each upper horizontal section is abutted against the top end of each bulge 22 and is in sliding connection with each bulge 22, a gap for adjusting the transverse position of the sliding plate 18 is reserved between each bending section and each bulge 22, the first adjusting mechanism comprises a plurality of third screws 21, the plurality of third screws 21 are transversely screwed on two sides of the adjusting seat 17, one ends, which are deviated from the head parts, of the rod parts of the third screws 21 are respectively abutted against the bending sections, and one sides, which are deviated from the head parts, of the lower horizontal section and the adjusting seat 17, which are respectively provided with an opening and a T-shaped groove 20, the lower horizontal section is connected with the adjusting seat 17 through a T-shaped bolt 19, namely the head of the T-shaped bolt 19 is positioned in the T-shaped groove 20, the rod part of the T-shaped bolt passes through the opening and is locked through a bolt, and the bottom of the adjusting seat 17 is connected with a backing plate 23 for adjusting the height of the adjusting seat 17 through a bolt; when the clamp seat needs to be adjusted in the axial direction of the clamp body, the T-shaped bolt 19 is loosened, the T-shaped bolt 19 is locked after being adjusted to a proper position, when the position of the clamp seat relative to the adjusting seat 17 needs to be transversely finely adjusted, an operator can finely adjust the transverse position of the clamp seat by screwing in or screwing out the third screws 21 on two sides of the adjusting seat 17, and mutually matching the third screws 21 on two sides of the adjusting seat 17 (loosening the third screws 21 on the same side of the adjusting seat 17 and screwing the third screws 21 on the other side of the adjusting seat 17).

The utility model discloses a working process does: the clamp comprises a lower clamp body 4, a lower clamp seat 2, a workpiece 4, an upper clamp body 3, a lower clamp body 4, four clamping blocks 8 in the upper clamp body 3 and the lower clamp body 4, four-point clamping of the workpiece, an upper clamp seat 1, a lifting lug 29, a lower clamp seat 2, an upper clamp seat 1, a lower clamp seat 2, a first idler wheel 6 and a second idler wheel 7, three-point supporting of the clamp body is achieved, the clamp body can rotate around the axis of the clamp body, a transmission disc 15 fixedly arranged on the clamp body is abutted with a power transmission cylinder, and the transmission disc 15 and an embedded block 16 are used for directly transmitting the rotating power of the power transmission cylinder to the clamp body and driving the clamp body to rotate around the axis of the clamp body.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. Rotation formula anchor clamps, its characterized in that: comprises a clamp seat, a clamp body, a rotating mechanism, a limiting mechanism and a power transmission mechanism; the fixture body is rotationally connected with the fixture seat through the rotating mechanism and can rotate around the axis of the fixture body, and a plurality of clamping assemblies for clamping workpieces are arranged in the fixture body; the limiting mechanisms are at least two and distributed on two end faces of the clamp seat, and each limiting mechanism is connected with the clamp seat to prevent the clamp body from axially moving; the power transmission mechanism is connected with any end face of the fixture body and is used for directly transmitting the power of the external power transmission cylinder to the fixture body.

2. The pivoting clamp of claim 1, wherein: each limiting mechanism comprises an installation seat (13) and a third roller (14), each installation seat (13) is fixedly connected to the end face of the clamp seat, each third roller (14) is rotatably connected to each installation seat (13), and the wheel face of each third roller (14) is tangent to the end face of the clamp body.

3. The pivoting clamp of claim 1, wherein: the power transmission mechanism comprises an insert block (16) and an annular transmission disc (15), one end face of the transmission disc (15) is fixedly connected to any one end face of the fixture body, the inner ring of the transmission disc (15) is fixedly provided with a flanging deviating from the fixture body, and the insert block (16) is fixedly arranged at one end, deviating from the transmission disc (15), of the fixture body.

4. The pivoting clamp of claim 1, wherein: the fixture base comprises an upper fixture base (1) and a lower fixture base (2), the upper fixture base (1) and the lower fixture base (2) are detachably connected and are surrounded to form a first annular cavity matched with the outer surface of the fixture body, and the fixture body is rotatably connected into the first annular cavity through the rotating mechanism.

5. The spin chuck of any one of claims 1-4, wherein: each clamping assembly comprises an adjusting mechanism and clamping blocks (8) arranged inside the clamp body, each clamping block (8) is connected with the clamp body through each adjusting mechanism, and each adjusting mechanism is used for adjusting the distance between each clamping block (8) and a workpiece.

6. The pivoting clamp of claim 5, wherein: the clamp is characterized in that an annular groove is formed in the clamp body, one end of each clamping block (8) is located in the annular groove, the other end of each clamping block extends towards the center of the clamp body, two sides of each clamping block (8) are respectively provided with a stop block (9), one end of each stop block (9) is fixedly connected in the annular groove, and the other end of each stop block is abutted to each clamping block (8).

7. The pivoting clamp of claim 6, wherein: each adjusting mechanism comprises a first screw (10) and a rotating assembly, a threaded hole is formed in the fixture body along the radial direction of the fixture body, each first screw (10) is in threaded connection with the threaded hole, and one end, facing the clamping block (8), of each first screw (10) is rotatably connected with the clamping block (8) through the rotating assembly.

8. The pivoting clamp of claim 7, wherein: the rotating assembly comprises second screws (12), one end, located in the circular groove, of each clamping block (8) is provided with a through hole, each clamping block (8) is provided with a mounting groove used for mounting the second screws (12), the rod part of each second screw (12) penetrates through each through hole and is fixedly connected with the rod part of each first screw (10), and the head part of each second screw (12) is located in the mounting groove.

9. The pivoting clamp of claim 4, wherein: the rotating mechanism comprises a first roller (6) and two second rollers (7), the first roller (6) and the second rollers (7) are rotatably connected into the clamp seat, the first roller (6) is located at the top of the upper clamp seat (1), the second rollers (7) are located at the bottom of the lower clamp seat (2), and the first roller (6) and the two second rollers (7) are used for carrying out three-point support on the clamp body.

10. The pivoting clamp of claim 4, wherein: still including adjusting seat (17), the bottom of anchor clamps seat (2) is followed down press from both sides specific axial sliding connection in adjust on seat (17) just be equipped with on adjusting seat (17) and be used for the locking anchor clamps seat (2) are followed down press from both sides specific endwise slip's locking mechanism, it is used for adjusting still to be equipped with on adjusting seat (17) first adjustment mechanism of anchor clamps seat (2) transverse position down with be used for adjusting to adjust the second adjustment mechanism of seat (17) height.