Clamping mechanism of multi-channel automatic polishing machine

Abstract

The utility model relates to the technical field of automatic polishing machines, and discloses a clamping mechanism of a multi-channel automatic polishing machine, which is arranged on a base table of the clamping mechanism of the multi-channel automatic polishing machine and comprises a supporting seat, a chuck and a pull rod assembly, the supporting seat comprises a bearing face used for bearing the main body part and a reducing hole penetrating through the bearing face, the chuck is movably arranged in the reducing hole and provided with a clamping hole allowing the protruding column part to be inserted therein, and the chuck can move between a clamping position and a loosening position in a reciprocating mode in the axial direction of the reducing hole. The clamping hole can be subjected to diameter shrinkage deformation at the clamping position so as to clamp the protruding column part and can be subjected to diameter expansion deformation at the loosening position so as to loosen the protruding column part, the pull rod assembly is connected with the chuck and used for pulling the chuck to reset to the clamping position through elasticity, and then flexible assembling, disassembling and clamping of the type of workpieces can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic polishing machines, in particular to a clamping mechanism for a multi-channel automatic polishing machine. Background Art

[0002] The clamping mechanism of a multi-channel automatic polishing machine is an automatic device for polishing the metal surface, which realizes high-speed grinding and polishing of the workpiece surface through a rotating disc.

[0003] As Figure 1 Shown is a cross-sectional view of a workpiece 100 that needs to be polished. Specifically, the workpiece 100 includes an integrally formed main body portion 110 and a convex column portion 120. The convex column portion 120 is coaxial with the main body portion 110 and protrudes from the main body portion 110. In addition, the workpiece 100 further includes a convex handle portion 130, which protrudes from one end of the main body portion 110 opposite to the convex column portion 120. Such workpieces 100 are commonly knob-like accessories. The polished parts of such workpieces 100 mainly include the surface of the main body portion 110 on the side opposite to the convex column portion 120.

[0004] The existing automatic polishing machines cannot achieve flexible clamping and polishing of such workpieces well, and in addition, the working efficiency is relatively low. Summary of the Utility Model

[0005] Based on the above, the purpose of the utility model is to provide a clamping mechanism for a multi-channel automatic polishing machine, aiming to improve at least one of the problems of flexible loading and unloading clamping and polishing.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] The utility model provides a clamping mechanism for a multi-channel automatic polishing machine for polishing a workpiece. The workpiece includes a main body portion and a convex column portion, and the convex column portion protrudes from one end of the main body portion. The clamping mechanism for the multi-channel automatic polishing machine includes:

[0008] A base;

[0009] A clamping mechanism arranged on the base. The clamping mechanism includes a support seat, a chuck and a pull rod assembly. The support seat includes a supporting surface for supporting the main body portion and a reduced-diameter hole penetrating through the supporting surface. The chuck is movably arranged in the reduced-diameter hole and is provided with a clamping hole for inserting the convex column portion. The chuck can reciprocate axially along the reduced-diameter hole between a clamping position and a release position. The clamping hole can be reduced in diameter and deformed at the clamping position to clamp the convex column portion and can be enlarged in diameter and deformed at the release position to release the convex column portion. The pull rod assembly is connected to the chuck and is used to elastically pull the chuck to reset to the clamping position.

[0010] Preferably, the pull rod assembly comprises:

[0011] Elastic reset member;

[0012] The pull rod is connected to the clamp, and the elastic reset member is connected to the pull rod and is used to use elastic potential energy to pull the pull rod to drive the clamp to reset to the clamping position.

[0013] Preferably, the elastic reset member is an elastic compression spring, the elastic compression spring is sleeved on the pull rod, and the pull rod passes through the end of the support seat facing away from the supporting surface;

[0014] Among them, one end of the elastic compression spring abuts against one end of the support seat facing away from the supporting surface, and the other end is connected to the pull rod, or the pull rod sleeve is provided with a limiting nut, one end of the elastic compression spring abuts against one end of the support seat facing away from the supporting surface, and the other end abuts against the limiting nut.

[0015] Preferably, the chuck is made of elastic rubber or elastic silicone or elastic composite material or elastic metal material. When the chuck moves to the clamping position, the chuck is squeezed and matched with the reduced diameter hole to reduce the diameter of the clamping hole.

[0016] Preferably, it further comprises: a rotating disk mechanism rotatably disposed on the base, a plurality of the clamping mechanisms arranged in a circular array around the rotating axis of the rotating disk mechanism and disposed on the rotating disk mechanism, the rotating disk mechanism being used to rotate and drive each of the clamping mechanisms to pass through an upper unloading station and a plurality of polishing stations;

[0017] The rotating disk mechanism comprises:

[0018] A large turntable rotatably disposed on the base;

[0019] A first driving source is fixed to the base and is drivingly connected to the large turntable;

[0020] A plurality of small turntables are arranged in a circular array around the rotating axis of the rotating disk mechanism and can be rotatably disposed on the large turntable, and each of the small turntables is respectively provided with a clamping mechanism;

[0021] A plurality of second driving sources are fixed to the large turntable, and each of the second driving sources is respectively connected to each of the small turntables in a one-to-one driving manner so as to drive each of the small turntables to rotate around its own rotation axis.

[0022] Preferably, it also includes a polishing mechanism;

[0023] There are multiple polishing mechanisms, and the multiple polishing mechanisms are respectively arranged on the base and are respectively located one by one on one side of each polishing station; and / or,

[0024] The rotary disk mechanism further includes a plurality of rotation cycle detection members, and each of the small turntables is provided with one of the rotation cycle detection members for detecting the rotation cycle of the corresponding small turntable; and / or,

[0025] The multi-channel automatic polishing machine clamping mechanism further includes an outer box body and a wire duct fixedly connected to the inner top of the outer box body. The base, the clamping mechanism, the polishing mechanism, and the rotary disk mechanism are all located inside the outer box body. The wire duct is coaxially suspended above the large turntable. The large turntable is provided with a wire hole facing the wire duct, and the wire duct is used to guide the circuit to pass through the wire hole from top to bottom.

[0026] The beneficial effects of the present utility model are as follows:

[0027] The present utility model creatively designs a new clamping mechanism for the structure of the workpiece. The clamping mechanism is arranged on the base of the multi-channel automatic polishing machine clamping mechanism. The clamping mechanism includes a support seat, a chuck, and a pull rod assembly. The support seat includes a supporting surface for supporting the main body part and a reduced-diameter hole penetrating the supporting surface. The chuck is movably arranged in the reduced-diameter hole and is provided with a clamping hole for inserting the convex column part. The chuck can reciprocate along the axial direction of the reduced-diameter hole between a clamping position and a releasing position. The clamping hole can be reduced in diameter and deformed to clamp the convex column part at the clamping position and expanded in diameter and deformed to release the convex column part at the releasing position. The pull rod assembly is connected to the chuck and is used to elastically pull the chuck to reset to the clamping position, so as to realize the flexible loading and unloading and clamping of this type of workpiece; it can realize the clamping and positioning or releasing of the workpiece through the clamping mechanism, and the polishing mechanism arranged on the base completes the polishing treatment of the workpiece clamped by the clamping mechanism, realizing the flexible clamping and polishing treatment of this type of workpiece. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments of the present utility model. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present utility model and these drawings.

[0029] Figure 1 A cross-sectional view of the workpiece to be polished;

[0030] Figure 2 A three-dimensional schematic diagram of the multi-channel automatic polishing machine clamping mechanism provided by some embodiments of the present utility model Figure 1 ;

[0031] Figure 3 Schematic structural relationship diagram of the rotary disk mechanism, clamping mechanism and pressing mechanism of the multi-channel automatic polishing machine clamping mechanism provided for some embodiments of the present invention;

[0032] Figure 4 Schematic diagram of the transmission cooperation between the second drive source and the small turntable of the multi-channel automatic polishing machine clamping mechanism provided for some embodiments of the present invention;

[0033] Figure 5 Three-dimensional schematic of the multi-channel automatic polishing machine clamping mechanism provided for some embodiments of the present invention Figure 2 ;

[0034] Figure 6 Three-dimensional schematic of the multi-channel automatic polishing machine clamping mechanism with the outer box body hidden provided for some embodiments of the present invention Figure 1 ;

[0035] Figure 7 Three-dimensional schematic of the multi-channel automatic polishing machine clamping mechanism with the outer box body hidden provided for some embodiments of the present invention Figure 2 ;

[0036] Figure 8 Three-dimensional schematic of the multi-channel automatic polishing machine clamping mechanism with the outer box body hidden provided for some embodiments of the present invention Figure 3 ;

[0037] Figure 9 Three-dimensional schematic diagram of multiple clamping mechanisms of the multi-channel automatic polishing machine clamping mechanism provided for some embodiments of the present invention.

[0038] Reference numerals:

[0039] 100, workpiece; 110, main body part; 120, convex column part; 130, convex handle part;

[0040] 1, base;

[0041] 2, clamping mechanism; 21, support seat; 211, supporting surface; 212, reduced diameter hole; 22, chuck; 23, pull rod assembly; 231, elastic reset member; 232, pull rod; 233, limit nut;

[0042] 3, polishing mechanism;

[0043] 4, rotary disk mechanism; 41, large turntable; 42, first drive source; 43, small turntable; 44, second drive source; 45, rotation number detection member; 46, first bevel gear; 47, second bevel gear; 48, planetary gear; 49, internal gear ring;

[0044] 5, pressing mechanism; 51, displacement drive source; 52, pressing member;

[0045] 6. Outer box body;

[0046] 7. Cable duct. Detailed implementation manner

[0047] To make the technical problems solved by the present utility model, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present utility model.

[0048] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0049] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0050] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0051] Such as Figure 1The figure shows a cross-sectional view of a workpiece 100 that needs to be polished. Specifically, the workpiece 100 includes an integrally formed main body portion 110 and a protruding post portion 120. The protruding post portion 120 is coaxial with the main body portion 110 and protrudes from the main body portion 110. In addition, it also includes a protruding handle portion 130 that protrudes from one end of the main body portion 110 facing away from the protruding post portion 120. This type of workpiece 100 is commonly a knob-like fitting. The main polishing area of this type of workpiece 100 mainly includes the surface of the main body portion 110 on the side facing away from the protruding post portion 120. The existing clamping mechanisms of multi-channel automatic polishing machines cannot achieve flexible clamping and polishing of this type of workpiece 100 well, and in addition, the working efficiency is relatively low.

[0052] In view of the above problems, an embodiment of the present application provides a clamping mechanism for a multi-channel automatic polishing machine. As shown in Figure 2-8 , the clamping mechanism for a multi-channel automatic polishing machine is used to polish the workpiece 100. The clamping mechanism for a multi-channel automatic polishing machine includes a base 1 and a clamping mechanism 2; the clamping mechanism 2 is arranged on the base 1. The clamping mechanism 2 includes a support seat 21, a chuck 22 and a pull rod assembly 23. The support seat 21 includes a supporting surface 211 for supporting the main body portion 110 and a reduced-diameter hole 212 penetrating through the supporting surface 211. The chuck 22 is movably arranged in the reduced-diameter hole 212 and is provided with a clamping hole for the protruding post portion 120 to be inserted. The chuck 22 can reciprocate along the axial direction of the reduced-diameter hole 212 between a clamping position and a release position. The clamping hole can be reduced in diameter and deformed at the clamping position to clamp the protruding post portion 120 and expanded in diameter and deformed at the release position to release the protruding post portion 120. The pull rod assembly 23 is connected to the chuck 22 and is used to elastically pull the chuck 22 back to the clamping position.

[0053] As shown in Figure 2-8 , in view of the structure of the knob-like workpiece 100, an embodiment of the present application creatively designs a new clamping mechanism 2. The clamping mechanism 2 is arranged on the base 1 of the clamping mechanism for a multi-channel automatic polishing machine. The clamping mechanism 2 includes a support seat 21, a chuck 22 and a pull rod assembly 23. The support seat 21 includes a supporting surface 211 for supporting the main body portion 110 and a reduced-diameter hole 212 penetrating through the supporting surface 211. The chuck 22 is movably arranged in the reduced-diameter hole 212 and is provided with a clamping hole for the protruding post portion 120 to be inserted. The chuck 22 can reciprocate along the axial direction of the reduced-diameter hole 212 between a clamping position and a release position. The clamping hole can be reduced in diameter and deformed at the clamping position to clamp the protruding post portion 120 and expanded in diameter and deformed at the release position to release the protruding post portion 120. The pull rod assembly 23 is connected to the chuck 22 and is used to elastically pull the chuck 22 back to the clamping position, thereby realizing flexible loading and unloading and clamping of this type of workpiece 100; the polishing mechanism 3 arranged on the base 1 can complete the polishing process of the workpiece 100 clamped by the clamping mechanism 2, realizing flexible loading and unloading, clamping and polishing of this type of workpiece 100.

[0054] In some embodiments, as shown in Figure 2-8, the drawbar assembly 23 includes an elastic reset member 231 and a drawbar 232; the drawbar 232 is connected to the chuck 22, and the elastic reset member 231 is connected to the drawbar 232 and is used to pull the drawbar 232 by using elastic potential energy to drive the chuck 22 to reset to the clamping position. Specifically, in some embodiments, the elastic reset member 231 is an elastic compression spring, the elastic compression spring is sleeved on the drawbar 232, and the drawbar 232 penetrates through one end of the support base 21 facing away from the supporting surface 211; wherein, a limit nut 233 is sleeved on the drawbar 232, one end of the elastic compression spring abuts against one end of the support base 21 facing away from the supporting surface 211, and the other end abuts against the limit nut 233. Or in some embodiments, one end of the elastic compression spring abuts against one end of the support base 21 facing away from the supporting surface 211, and the other end is connected to the drawbar 232. When the elastic compression spring is compressed, the elastic force makes the chuck 22 stop at the clamping position, with a simple structure and low cost.

[0055] In some embodiments, such as Figure 2-8 , the material of the chuck 22 is elastic rubber or elastic silica gel or elastic composite material or elastic metal material. When the chuck 22 moves towards the clamping position, the chuck 22 is in extrusion fit with the reduced-diameter hole 212 so that the clamping hole is reduced in diameter and deformed to clamp and fix the workpiece 100.

[0056] In some embodiments, such as Figure 2-8, the clamping mechanism of the multi-channel automatic polishing machine also includes a rotating disk mechanism 4. The rotating disk mechanism 4 is rotatably arranged on the base 1, and a plurality of clamping mechanisms 2 are arranged in a circular array around the rotating axis of the rotating disk mechanism 4 and are arranged on the rotating disk mechanism 4. The rotating disk mechanism 4 is used to rotate and drive each clamping mechanism 2 to pass through the upper unloading station and several polishing stations. The structure is compactly arranged, and the workpiece 100 is switched between different stations by rotating the rotating disk mechanism 4. The staff can put the workpiece 100 that needs to be polished on the clamping mechanism 2 docked at the upper unloading station, and the corresponding clamping mechanisms 2 docked at other stations can perform related polishing processing without stopping, thereby improving work efficiency. The rotating disk mechanism 4 includes a large turntable 41, a first driving source 42, a plurality of small turntables 43 and a plurality of second driving sources 44. The large turntable 41 is rotatably arranged on the base 1; the first driving source 42 is fixed to the base 1 and is connected to the large turntable 41; a plurality of small turntables 43 are arranged in a circular array around the rotating axis of the rotating disk mechanism 4 and are rotatably arranged on the large turntable 41, and each small turntable 43 is respectively provided with a clamping mechanism 2; a plurality of second driving sources 44 are fixed to the large turntable 41, and each second driving source 44 is respectively connected to each small turntable 43 in a one-to-one driving manner to drive each small turntable 43 to rotate around its own rotating axis. Then, the rotation of the large turntable 41 drives the used clamping mechanism 2 to rotate around the rotating axis of the large turntable 41, so as to realize the displacement switching of the workpiece 100 at different stations. In addition, the small turntable 43 itself can also rotate around the rotating axis of the small turntable 43 itself under the drive of the corresponding second driving source 44, so as to further adjust the angle position of the workpiece 100 clamped by the clamping mechanism 2 on the small turntable 43 relative to the corresponding polishing mechanism 3, so as to realize a more comprehensive polishing process for the corresponding workpiece 100. Specifically, the second driving source 44 can be a linear motor, and the small turntable 43 and the second driving source 44 can be connected by an existing gear set transmission structure. The specific gear set transmission structure can include a first bevel gear 46 fixed to the output shaft of the second driving source 44, a second bevel gear 47 meshing with the first bevel gear 46, a planetary gear 48 coaxially connected to the second bevel gear 47, and an inner ring gear 49 meshing with the planetary gear 48. The inner ring gear 49 is coaxially arranged on the small turntable 43, thereby driving the small turntable 43 to rotate. The gear set transmission structure can also adopt other existing structures, which will not be described in detail.

[0057] In some embodiments, the clamping mechanism of the multi-channel automatic polishing machine also includes a polishing mechanism 3, there are three polishing mechanisms 3, and there are three polishing stations. Each polishing mechanism 3 is used to perform one-to-one polishing processing on the workpiece 100 docked at the corresponding polishing station, realizing three-station polishing processing and one-station simultaneous loading and unloading, which can improve the polishing efficiency.

[0058] In addition, in some embodiments, Figure 3-9, there are multiple polishing mechanisms 3, and the multiple polishing mechanisms 3 are respectively arranged on the base 1 and are respectively located on one side of each polishing station one by one. For example, there can also be 2, 4 or more, which are specifically designed according to requirements. Further, as shown in Figure 2-8 , the rotary disk mechanism 4 further includes multiple rotation cycle detection components 45. Each small turntable 43 is provided with a rotation cycle detection component 45 for detecting the rotation cycle of the corresponding small turntable 43 one by one. The rotation cycle detection component 45 can be an existing cycle counting sensor, which can realize the statistics of the rotation cycle of the small turntable 43 to facilitate flexible monitoring of the rotation cycle and improve the polishing efficiency.

[0059] Further, in some embodiments, such as Figure 2-8 , the multi-channel automatic polishing machine clamping mechanism further includes an outer box body 6 and a wire guiding tube 7 fixedly connected to the inner top of the outer box body 6. The base 1, the clamping mechanism 2, the polishing mechanism 3, and the rotary disk mechanism 4 are all located inside the outer box body 6. The wire guiding tube 7 is coaxially suspended above the large turntable 41, and the large turntable 41 is provided with a wire passing hole facing the wire guiding tube 7. The wire guiding tube 7 is used to guide the wire to pass through the wire passing hole from top to bottom. The wire guiding tube 7 can fix the wire path and reduce the interference effect between the wire and other structures.

[0060] In some embodiments, such as Figure 2-8 , the multi-channel automatic polishing machine clamping mechanism further includes a pushing mechanism 5. The pushing mechanism 5 is arranged on the base 1 and is spaced below the loading and unloading station. The pushing mechanism 5 is used to push the pull rod assembly 23 of the clamping mechanism 2 parked at the loading and unloading station, so that the corresponding pull rod assembly 23 drives the corresponding chuck 22 to move to the release position. By only setting one pushing mechanism 5, on the one hand, the equipment cost can be reduced, and on the other hand, the automatic release clamping operation of the workpiece 100 clamped by the clamping mechanism 2 parked at the loading and unloading station can be realized, which is convenient for loading and unloading of the clamping mechanism 2 parked at the loading and unloading station.

[0061] Such as Figure 2-8, in some embodiments, the pressing mechanism 5 includes a displacement driving source 51 and a pressing member 52. The displacement driving source 51 is fixed to the base 1; the pressing member 52 is drivingly connected to the displacement driving source 51. The displacement driving source 51 is configured to drive the pressing member 52 to reciprocate coaxially along the extending direction of the pull rod 232 between a pressing position and a separating position. The pressing member 52 presses the pull rod assembly 23 at the pressing position to drive the chuck 22 to move to the release position. The pressing member 52 is separated from the pull rod assembly 23 at the separating position to reset the pull rod assembly 23, and the chuck 22 moves to the clamping position. Specifically, in some embodiments, the displacement driving source 51 includes a linear motor or a linear cylinder or a linear oil cylinder; the pressing member 52 may be a rod structure extending along a direction coaxial with the pull rod 232 of the clamping mechanism 2 parked at the upper unloading station. This type of pressing mechanism 5 has a simple structure and low cost, can realize automatic pushing of the pull rod 232 to move, and is separated from the pull rod 232 when not pushing the pull rod 232, and will not affect the rotation of the large turntable 41 or the rotating disc mechanism 4.

[0062] Note that the above is only the preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, it may also include more other equivalent embodiments, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A clamping mechanism for a multi-channel automatic polishing machine, used for polishing a workpiece (100), wherein the workpiece (100) comprises a main body (110) and a convex column (120), wherein the convex column (120) is convexly arranged at one end of the main body (110), characterized in that: The multi-channel automatic polishing machine clamping mechanism comprises: abutment(1); A clamping mechanism (2) is arranged on the base (1), the clamping mechanism (2) comprising a support seat (21), a clamping head (22) and a pull rod assembly (23), the support seat (21) comprising a supporting surface (211) for supporting the main body (110) and a reduced diameter hole (212) penetrating the supporting surface (211), the clamping head (22) being movably arranged in the reduced diameter hole (212) and having a hole for the convex column (120) to be inserted into the clamping head (22). 0) is inserted into the clamping hole, the clamp (22) can reciprocate along the axial direction of the reduced diameter hole (212) between a clamping position and a loosening position, the clamping hole can shrink in diameter at the clamping position to clamp the boss portion (120) and expand in diameter at the loosening position to loosen the boss portion (120), the pull rod assembly (23) is connected to the clamp (22) and is used to elastically pull the clamp (22) to return to the clamping position.

2. A multi-channel automatic polishing machine clamping mechanism according to claim 1, characterized in that: The pull rod assembly (23) comprises: Elastic reset member (231); The pull rod (232) is connected to the clamp (22), and the elastic reset member (231) is connected to the pull rod (232) and is used to use elastic potential energy to pull the pull rod (232) to drive the clamp (22) to reset to the clamping position.

3. A multi-channel automatic polishing machine clamping mechanism according to claim 2, characterized in that: The elastic return member (231) is an elastic compression spring, and the elastic compression spring is sleeved on the pull rod (232). The pull rod (232) passes through the end of the support seat (21) facing away from the supporting surface (211); One end of the elastic compression spring abuts against one end of the support seat (21) facing away from the supporting surface (211), and the other end is connected to the pull rod (232); or, the pull rod (232) is provided with a limiting nut (233), one end of the elastic compression spring abuts against one end of the support seat (21) facing away from the supporting surface (211), and the other end abuts against the limiting nut (233).

4. A multi-channel automatic polishing machine clamping mechanism according to claim 3, characterized in that: The material of the clamp (22) is elastic rubber or elastic silicone or elastic composite material or elastic metal material. When the clamp (22) moves toward the clamping position, the clamp (22) is squeezed and matched with the reduced diameter hole (212) to reduce the diameter of the clamping hole and deform it.

5. The clamping mechanism of a multi-channel automatic polishing machine according to claim 1, characterized in that: Also includes: A rotating disk mechanism (4) is rotatably disposed on the base (1); a plurality of the clamping mechanisms (2) are arranged in a circular array around the rotating axis of the rotating disk mechanism (4) and are disposed on the rotating disk mechanism (4); the rotating disk mechanism (4) is used to rotate and drive each of the clamping mechanisms (2) to pass through an upper unloading station and a plurality of polishing stations; The rotating disk mechanism (4) comprises: A large turntable (41) rotatably disposed on the base (1); A first driving source (42) is fixed to the base (1) and is drivingly connected to the large turntable (41); A plurality of small turntables (43) are arranged in a circular array around the rotation axis of the rotating disk mechanism (4) and are rotatably disposed on the large turntable (41), and each of the small turntables (43) is respectively provided with one of the clamping mechanisms (2); A plurality of second driving sources (44) are fixed to the large turntable (41), and each of the second driving sources (44) is respectively connected to each of the small turntables (43) in a one-to-one driving manner, so as to respectively drive each of the small turntables (43) to rotate around its own rotation axis.

6. A multi-channel automatic polishing machine clamping mechanism according to claim 5, characterized in that: Also includes a polishing mechanism (3); There are a plurality of polishing mechanisms (3), and the plurality of polishing mechanisms (3) are respectively arranged on the base platform (1) and are respectively located one-to-one on one side of each polishing station; and / or, The rotating disk mechanism (4) further comprises a plurality of rotation number detection members (45), each of the small rotating disks (43) being provided with a rotation number detection member (45) for detecting the rotation number of the corresponding small rotating disk (43); and / or, The clamping mechanism of the multi-channel automatic polishing machine also includes an outer box body (6) and a wiring tube (7) fixedly connected to the inner top of the outer box body (6); the base (1), the clamping mechanism (2), the polishing mechanism (3), and the rotating disk mechanism (4) are all located in the outer box body (6); the wiring tube (7) is coaxially suspended above the large turntable (41); the large turntable (41) is provided with a wiring hole facing the wiring tube (7); the wiring tube (7) is used to guide the line to pass through the wiring hole from top to bottom.

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