Clamp mechanism

Abstract

The invention discloses a clamp mechanism, and belongs to the technical field of clamps. According to the clamp mechanism, acting force is provided through rotation of the rotary disc, the first abutting structure can move on the first guide structure so that the first movable clamping jaw can slide in the first direction, meanwhile, the second abutting structure can move on the second guide structure so that the second movable clamping jaw can slide in the second direction, and then the clamping jaw assembly acts; compared with the prior art, a driving part does not need to be additionally arranged to drive the clamping jaw assembly to be opened and closed, the synchronism of opening and closing of the clamping jaw assembly and rotation of the rotary disc can be improved, then the production efficiency is improved, and the cost can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of clamps, and in particular to a clamp mechanism. Background Art

[0002] The workpiece can be rotated by the turntable device, and can be bent, welded, assembled, packaged and other operations on the workpiece. It has the advantages of small space occupation and easy operation.

[0003] The turntable device is provided with a fixture for clamping the workpiece. In the existing turntable device, the fixture is usually driven by a cylinder, a motor or other driving parts to open and close, which is not only costly but also affects the beat of the whole machine. Summary of the invention

[0004] The object of the present invention is to provide a clamping mechanism which can not only improve production efficiency but also reduce costs.

[0005] In order to achieve the above objectives, the following technical solutions are provided:

[0006] The fixture mechanism comprises:

[0007] A rotating disk and a force applying member, wherein the rotating disk is rotatably arranged on one side of the force applying member;

[0008] A clamping jaw assembly, the clamping jaw assembly comprising a fixed clamping jaw, a first movable clamping jaw and a second movable clamping jaw, the fixed clamping jaw is fixed to the rotating disk, the first movable clamping jaw is slidably arranged on one side of the fixed clamping jaw along a first direction, and the second movable clamping jaw is slidably arranged on one side of the fixed clamping jaw along a second direction; the first direction is parallel to the radial direction of the rotating disk, and the first direction is perpendicular to the second direction;

[0009] One of the first movable jaw and the force-applying member is provided with a first guide structure, and the other is provided with a first abutment structure; one of the first movable jaw and the second movable jaw is provided with a second guide structure, and the other is provided with a second abutment structure. When the turntable rotates, the first abutment structure can move on the first guide structure to allow the first movable jaw to slide along the first direction, and at the same time, the second abutment structure can move on the second guide structure to allow the second movable jaw to slide along the second direction.

[0010] As a preferred technical solution of the above-mentioned clamping mechanism, the clamping mechanism further includes:

[0011] a first elastic member, wherein the first elastic member is configured to make the first movable clamping jaw always have a movement tendency along the first direction to approach the fixed clamping jaw;

[0012] a second elastic member, wherein the second elastic member is configured to make the second movable clamping jaw always have a movement tendency along the second direction to approach the fixed clamping jaw;

[0013] When the turntable rotates, the first abutment structure can move on the first guide structure so that the first movable jaw slides along the first direction and away from the fixed jaw, and the second abutment structure can move on the second guide structure so that the second movable jaw slides along the second direction and away from the fixed jaw.

[0014] As a preferred technical solution of the above-mentioned clamping mechanism, the first abutting structure includes a roller, and the roller can roll on the first guiding structure.

[0015] As a preferred technical solution of the above-mentioned clamping mechanism, the first guide structure is provided on the force-applying member, and the first guide structure comprises an arcuate surface, and along the radial direction of the rotating disk, there is a distance between the arcuate surface and the fixed clamping claw;

[0016] Along the circumference of the rotating disk, the spacing first increases and then decreases.

[0017] As a preferred technical solution of the above-mentioned clamping mechanism, the second guide structure is provided on the first movable clamping jaw, the second guide structure comprises a first inclined surface, the first inclined surface comprises a first end and a second end, and along the first direction, the first end is closer to the arc surface than the second end;

[0018] The first inclined surface extends obliquely from the first end to the second end along the second direction from the fixed clamping jaw to the second movable clamping jaw.

[0019] As a preferred technical solution of the above-mentioned clamp mechanism, the second abutting structure includes a second inclined surface arranged corresponding to the first inclined surface, and the second inclined surface abuts against the second inclined surface.

[0020] As a preferred technical solution of the above-mentioned clamping mechanism, the first movable clamping jaw includes a first jaw body and a first connecting portion, and the first connecting portion is fixedly connected to the first jaw body;

[0021] The second movable clamping jaw comprises a second jaw body and a second connecting portion, and the second connecting portion is fixedly connected to the second jaw body;

[0022] One of the first guide structure and the first abutment structure is provided on the force applying member, and the other of the first guide structure and the first abutment structure is provided on the first connecting portion; and / or,

[0023] One of the second guide structure and the second abutting structure is provided at the first connecting portion, and the other of the second guide structure and the second abutting structure is provided at the second connecting portion.

[0024] As a preferred technical solution of the above-mentioned clamping mechanism, the turntable is provided with an avoidance groove; the first connecting portion is located in the avoidance groove; and / or,

[0025] The second connecting portion is disposed in the avoidance groove.

[0026] As a preferred technical solution of the above-mentioned clamping mechanism, the force-applying members are provided in plurality, and the plurality of force-applying members are arranged at intervals along the circumference of the rotating disk; and / or,

[0027] The clamping jaw assemblies are provided in plurality, and the clamping jaw assemblies are arranged at intervals along the circumference of the rotating disk.

[0028] As a preferred technical solution of the above-mentioned clamping mechanism, the clamping mechanism further includes a rotation driving member, and the rotation driving member can drive the turntable to rotate.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The clamping mechanism of the present invention provides a force through the rotation of a turntable, so that the first abutment structure can move on the first guide structure, so that the first movable jaw can slide in the first direction, and at the same time, the second abutment structure can move on the second guide structure, so that the second movable jaw can slide in the second direction, thereby causing the jaw assembly to operate to clamp or release the part to be processed. Compared with the prior art, there is no need to additionally set up a driving member to drive the jaw assembly to open and close, which can not only improve the synchronization between the opening and closing of the jaw assembly and the rotation of the turntable, thereby improving production efficiency, but also reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the structure of a clamp mechanism in an embodiment of the present invention;

[0032] Figure 2 is a partial schematic diagram of a clamp mechanism in an embodiment of the present invention;

[0033] Figure 3 It is a first structural schematic diagram of a clamping jaw assembly in an embodiment of the present invention;

[0034] Figure 4 A second structural schematic diagram of the clamping jaw assembly in an embodiment of the present invention;

[0035] Figure 5 1 is an exploded view of the clamping jaw assembly in an embodiment of the present invention.

[0036] Reference numerals:

[0037] 1. Turntable; 11. Avoidance groove; 2. Force-applying member; 21. Arc-shaped surface; 3. Jaw assembly; 31. Fixed jaw; 32. First movable jaw; 32a. First jaw body; 32b. First connecting portion; 321. Roller; 322. First inclined surface; 33. Second movable jaw; 33a. Second jaw body; 33b. Second connecting portion; 331. Second inclined surface; 341. First elastic member; 342. Second elastic member; 351. First slide rail; 352. Second slide rail; 4. Rotary drive member. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0042] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0045] like Figure 1-5 As shown, this embodiment provides a clamp mechanism, including a turntable 1, a force-applying member 2 and a clamping jaw assembly 3, wherein the turntable 1 is rotatably disposed on one side of the force-applying member 2; the clamping jaw assembly 3 includes a fixed clamping jaw 31, a first movable clamping jaw 32 and a second movable clamping jaw 33, the fixed clamping jaw 31 is fixedly disposed on the turntable 1, the first movable clamping jaw 32 is slidably disposed on one side of the fixed clamping jaw 31 along a first direction, and the second movable clamping jaw 33 is slidably disposed on one side of the fixed clamping jaw 31 along a second direction; the first direction is parallel to the radial direction of the turntable 1, and the first direction is perpendicular to the second direction.

[0046] One of the first movable jaw 32 and the force-applying member 2 is provided with a first guide structure, and the other is provided with a first abutment structure. One of the first movable jaw 32 and the second movable jaw 33 is provided with a second guide structure, and the other is provided with a second abutment structure. When the turntable 1 rotates, the first abutment structure can move on the first guide structure to allow the first movable jaw 32 to slide in the first direction, and at the same time, the second abutment structure can move on the second guide structure to allow the second movable jaw 33 to slide in the second direction.

[0047] The clamping mechanism of this embodiment provides a force through the rotation of the turntable 1, so that the first abutment structure can move on the first guide structure, so that the first movable jaw 32 slides in the first direction, and at the same time, the second abutment structure can move on the second guide structure, so that the second movable jaw 33 slides in the second direction, thereby causing the jaw assembly 3 to operate to clamp or release the part to be processed. Compared with the prior art, there is no need to additionally set up a driving member to drive the jaw assembly 3 to open and close, which can not only improve the synchronization between the opening and closing of the jaw assembly 3 and the rotation of the turntable 1, thereby improving production efficiency, but also reduce costs.

[0048] Optionally, the clamp mechanism further includes a rotary drive member 4, which can drive the turntable 1 to rotate, so as to realize automated production and improve production efficiency. Exemplarily, the rotary drive member 4 is a DD motor (i.e., a direct drive motor), which has a low-speed and high-torque structure, can reduce mechanical losses, and has the advantages of low noise and less maintenance.

[0049] Optionally, the first movable clamping jaw 32 is slidably connected to the turntable 1 via the first slide rail 351 , thereby improving the smoothness of the movement of the first movable clamping jaw 32 along the first direction.

[0050] Optionally, the second movable clamping jaw 33 is slidably connected to the turntable 1 via the second slide rail 352 , thereby improving the smoothness of the movement of the second movable clamping jaw 33 along the second direction.

[0051] In this embodiment, the jaw assembly 3 also includes a first elastic member 341 and a second elastic member 342. The first elastic member 341 is configured so that the first movable jaw 32 always has a movement tendency along the first direction approaching the fixed jaw 31; the second elastic member 342 is configured so that the second movable jaw 33 always has a movement tendency along the second direction approaching the fixed jaw 31; when the turntable 1 rotates, the first abutment structure can move on the first guide structure so that the first movable jaw 32 slides along the first direction and away from the fixed jaw 31, and at the same time, the second abutment structure can move on the second guide structure so that the second movable jaw 33 slides along the second direction and away from the fixed jaw 31.

[0052] It can be understood that the jaw assembly 3 has an open state and a clamped state. In the open state, the first movable jaw 32 and the second movable jaw 33 are separated from the fixed jaw 31, so that the workpiece to be processed can be placed between the first movable jaw 32, the second movable jaw 33 and the fixed jaw 31; in the clamped state, the first movable jaw 32, the second movable jaw 33 and the fixed jaw 31 clamp the workpiece to be processed together. The first movable jaw 32 slides relative to the fixed jaw 31 along the first direction, and the second movable jaw 33 slides relative to the fixed jaw 31 along the second direction, so that the jaw assembly 3 switches between the open state and the clamped state.

[0053] It should be noted that, in this embodiment, the first elastic member 341 and the second elastic member 342 are used to keep the clamping jaw assembly 3 in a clamped state. Further, when the turntable 1 rotates, the first abutment structure moves on the first guide structure to push the first movable clamping jaw 32 to overcome the elastic force of the first elastic member 341 and move in the first direction away from the fixed clamping jaw 31, and at the same time, the second abutment structure moves on the second guide structure to push the second movable clamping jaw 33 to overcome the elastic force of the second elastic member 342 and move in the second direction away from the fixed clamping jaw 31, thereby switching the clamping jaw assembly 3 from the clamped state to the open state.

[0054] Furthermore, the first elastic member 341 is connected between the first movable jaw 32 and the rotating disk 1, and the first elastic member 341 is elastically deformed, so that the first movable jaw 32 always has a movement tendency along the first direction close to the fixed jaw 31 under the elastic force of the first elastic member 341. The second elastic member 342 is connected between the second movable jaw 33 and the rotating disk 1, and the second elastic member 342 is elastically deformed, so that the second movable jaw 33 always has a movement tendency along the first direction close to the fixed jaw 31 under the elastic force of the second elastic member 342.

[0055] Exemplarily, the first elastic member 341 is a spring. The second elastic member 342 is a spring.

[0056] Optionally, the first abutment structure includes a roller 321, and the roller 321 can roll on the first guide structure, thereby converting sliding friction into rolling friction, thereby achieving the purpose of reducing friction, which is conducive to making the turntable 1 rotate more smoothly.

[0057] Specifically, the first guide structure is provided on the force applying member 2, the first abutment structure is provided on the first movable clamping jaw 32, and the first abutment structure is provided corresponding to the first guide structure. Of course, in other embodiments, the first guide structure can also be provided on the first movable clamping jaw 32, the first abutment structure is provided on the force applying member 2, and the first abutment structure is provided corresponding to the first guide structure.

[0058] Optionally, the first guide structure includes an arcuate surface 21 , and along the radial direction of the turntable 1 , there is a distance between the arcuate surface 21 and the fixed clamping jaw 31 ; along the circumferential direction of the turntable 1 , the distance first increases and then decreases.

[0059] When the first abutment structure is not in contact with the arc surface 21, the clamping jaw assembly 3 is in a clamped state. As the turntable 1 rotates, when the first abutment structure just moves onto the arc surface 21, the spacing is small. As the turntable 1 rotates further, the first abutment structure moves on the arc surface 21, and the spacing gradually increases, thereby pushing the first movable jaw 32 to overcome the elastic force of the first elastic member 341 and slide along the first direction and away from the fixed jaw 31, so that the jaw assembly 3 switches to an open state. As the turntable 1 continues to rotate, the first abutment structure continues to move on the arc surface 21, and the spacing gradually decreases, thereby enabling the first movable jaw 32 to slide along the first direction and gradually approach the fixed jaw 31 under the elastic force of the first elastic member 341, so that the jaw assembly 3 switches back to a clamped state. By providing the above-mentioned arc surface 21, the first abutment structure can move more smoothly and more steadily on the first guide structure, improving the fluency and stability of the opening and closing of the jaw assembly 3, and having a protective effect on the workpiece to be processed.

[0060] It should be noted that when the first movable jaw 32 is located on the side of the fixed jaw 31 away from the center of the turntable 1 along the first direction, the center of the arc surface 21 and the center of the turntable 1 are located on the same side of the arc surface 21 along the first direction. When the first movable jaw 32 is located on the side of the fixed jaw 31 close to the center of the turntable 1 along the first direction, the center of the arc surface 21 and the center of the turntable 1 are located on both sides of the arc surface 21 along the first direction.

[0061] Specifically, the second guide structure is provided on the first movable jaw 32, the second abutment structure is provided on the second movable jaw 33, and the second abutment structure is provided corresponding to the second guide structure. Of course, in other embodiments, the second guide structure can also be provided on the second movable jaw 33, the second abutment structure is provided on the first movable jaw 32, and the second abutment structure is provided corresponding to the second guide structure.

[0062] Optionally, the second guide structure includes a first inclined surface 322, the first inclined surface 322 includes a first end and a second end, along the first direction, the first end is closer to the arc surface 21 than the second end; the first inclined surface 322 extends obliquely from the first end to the second end along the second direction from the fixed clamp 31 to the direction of the second movable clamp 33.

[0063] As the turntable 1 rotates, when the first movable jaw 32 slides along the first direction and moves away from the fixed jaw 31, the second abutting structure moves from the first end to the second end on the first inclined surface 322. Since the first inclined surface 322 extends obliquely from the first end to the second end along the second direction from the fixed jaw 31 to the direction of the second movable jaw 33, the second movable jaw 33 is pushed to overcome the elastic force of the second elastic member 342 and slide along the second direction and move away from the fixed jaw 31. When the first movable jaw 32 slides along the first direction and approaches the fixed jaw 31, the second movable jaw 33 can slide along the second direction and approach the fixed jaw 31 under the elastic force of the second elastic member 342, and the second abutting structure moves from the second end to the first end on the first inclined surface 322 and resets. By providing the above-mentioned first inclined surface 322, on the one hand, the second abutting structure can move more smoothly and more steadily on the second guide structure, thereby improving the fluency of the opening and closing of the jaw assembly 3, and on the other hand, the structure is simple and easy to manufacture.

[0064] Optionally, the second abutting structure includes a second inclined surface 331 corresponding to the first inclined surface 322, and the second inclined surface 331 abuts against the second inclined surface 331. The abutment between the second inclined surface 331 and the first inclined surface 322 increases the contact area between the second abutting structure and the first inclined surface 322, which is beneficial to improve the smoothness of the sliding of the second movable clamp 33.

[0065] Optionally, the first movable clamp 32 includes a first claw body 32a and a first connecting portion 32b, and the first connecting portion 32b is fixedly connected to the first claw body 32a; the first guide structure is provided on the force applying member 2, and the first abutting structure is provided on the first connecting portion 32b, thereby facilitating the layout of the first guide structure and the first abutting structure and improving the aesthetics. In other embodiments, the first guide structure can also be provided on the first connecting portion 32b, and the first abutting structure can be provided on the force applying member 2.

[0066] Furthermore, the second movable clamping claw 33 includes a second claw body 33a and a second connecting portion 33b, and the second connecting portion 33b is fixedly connected to the second claw body 33a; the second guide structure is provided on the first connecting portion 32b, and the second abutting structure is provided on the second connecting portion 33b, thereby facilitating the layout of the second guide structure and the second abutting structure and improving the aesthetics. In other embodiments, the second guide structure can also be provided on the second connecting portion 33b, and the second abutting structure can be provided on the first connecting portion 32b.

[0067] Specifically, the first connecting portion 32b is a first connecting block, which is separately provided with the first claw body 32a and fixedly connected with each other through bolts or other fasteners. The second connecting portion 33b is a second connecting block, which is separately provided with the second claw body 33a and fixedly connected with each other through bolts or other fasteners.

[0068] Optionally, the turntable 1 is provided with an avoidance groove 11; the first connection portion 32b is located in the avoidance groove 11, thereby avoiding interference of the turntable 1 with the first movable clamping claw 32 and improving the aesthetics.

[0069] Furthermore, the second connection portion 33 b is disposed in the avoidance groove 11 , thereby preventing the turntable 1 from interfering with the second movable clamping claw 33 and improving the aesthetics.

[0070] Optionally, there are multiple force-applying members 2, and the multiple force-applying members 2 are arranged at intervals along the circumference of the turntable 1. In other words, each force-applying member 2 can switch any clamping jaw assembly 3 to an open state, and then multiple clamping stations can be set to meet various needs and improve production efficiency.

[0071] Optionally, multiple jaw assemblies 3 are provided, and multiple jaw assemblies 3 are arranged at intervals along the circumference of the turntable 1. In other words, multiple parts to be processed can be clamped by multiple jaw assemblies 3, and different operations can be performed on parts to be processed at different positions at the same time, thereby improving production efficiency.

[0072] Exemplarily, the working principle of the clamp mechanism of this embodiment is:

[0073] When the turntable 1 rotates, the roller 321 rotates together with the turntable 1. When the first abutting structure is not in contact with the arc surface 21, the clamping jaw assembly 3 is in a clamping state.

[0074] As the turntable 1 rotates, when the first abutting structure just moves onto the arc surface 21 , at this time, along the circumference of the turntable 1 , the distance between the arc surface 21 and the fixed clamping claw 31 along the radial direction of the turntable 1 is small.

[0075] As the turntable 1 rotates further, the first abutment structure moves on the arc surface 21, and the spacing gradually increases, thereby pushing the first movable jaw 32 to overcome the elastic force of the first elastic member 341 and slide in the first direction and away from the fixed jaw 31; at the same time, the second abutment structure moves from the first end to the second end on the first inclined surface 322. Since the first inclined surface 322 extends obliquely from the first end to the second end along the second direction from the fixed jaw 31 to the direction of the second movable jaw 33, the second movable jaw 33 is pushed to overcome the elastic force of the second elastic member 342 and slide in the second direction and away from the fixed jaw 31, so that the jaw assembly 3 switches to the open state. At this time, the part to be processed can be placed between the first movable jaw 32, the second movable jaw 33 and the fixed jaw 31 by the manipulator for material discharge.

[0076] As the turntable 1 continues to rotate, the first abutment structure continues to move on the arc surface 21, and the spacing gradually decreases, so that the first movable jaw 32 can slide along the first direction and gradually approach the fixed jaw 31 under the elastic force of the first elastic member 341; at the same time, the second movable jaw 33 can slide along the second direction and approach the fixed jaw 31 under the elastic force of the second elastic member 342, so that the jaw assembly 3 switches back to the clamping state, thereby clamping the part to be processed for subsequent processing.

[0077] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A clamping mechanism, characterized in that: include: A rotating disk (1) and a force applying member (2), wherein the rotating disk (1) is rotatably arranged on one side of the force applying member (2); A clamping jaw assembly (3), the clamping jaw assembly (3) comprising a fixed clamping jaw (31), a first movable clamping jaw (32) and a second movable clamping jaw (33), the fixed clamping jaw (31) being fixedly arranged on the rotating disk (1), the first movable clamping jaw (32) being slidably arranged on one side of the fixed clamping jaw (31) along a first direction, and the second movable clamping jaw (33) being slidably arranged on one side of the fixed clamping jaw (31) along a second direction; the first direction is parallel to the radial direction of the rotating disk (1), and the first direction is perpendicular to the second direction; One of the first movable jaw (32) and the force-applying member (2) is provided with a first guide structure, and the other is provided with a first abutment structure; one of the first movable jaw (32) and the second movable jaw (33) is provided with a second guide structure, and the other is provided with a second abutment structure; when the turntable (1) rotates, the first abutment structure can move on the first guide structure so that the first movable jaw (32) slides along the first direction, and at the same time, the second abutment structure can move on the second guide structure so that the second movable jaw (33) slides along the second direction.

2. The clamping mechanism according to claim 1, characterized in that: The clamping jaw assembly (3) further comprises: a first elastic member (341), wherein the first elastic member (341) is configured to enable the first movable clamping jaw (32) to always have a movement tendency along the first direction to approach the fixed clamping jaw (31); a second elastic member (342), wherein the second elastic member (342) is configured to enable the second movable clamping jaw (33) to always have a movement tendency along the second direction to approach the fixed clamping jaw (31); When the turntable (1) rotates, the first abutment structure is able to move on the first guide structure so that the first movable jaw (32) slides along the first direction and away from the fixed jaw (31), and at the same time, the second abutment structure is able to move on the second guide structure so that the second movable jaw (33) slides along the second direction and away from the fixed jaw (31).

3. The clamping mechanism according to claim 2, characterized in that: The first abutment structure comprises a roller (321), and the roller (321) is capable of rolling on the first guide structure.

4. The clamping mechanism according to claim 3, characterized in that: The first guide structure is arranged on the force applying member (2), and the first guide structure comprises an arcuate surface (21), and along the radial direction of the rotating disk (1), there is a distance between the arcuate surface (21) and the fixed clamping claw (31); Along the circumference of the rotating disk (1), the spacing first increases and then decreases.

5. The clamping mechanism according to claim 4, characterized in that: The second guide structure is arranged on the first movable clamping jaw (32), the second guide structure comprises a first inclined surface (322), the first inclined surface (322) comprises a first end and a second end, and along the first direction, the first end is closer to the arc surface (21) than the second end; The first inclined surface (322) extends obliquely from the first end to the second end along the second direction from the fixed clamping jaw (31) toward the second movable clamping jaw (33).

6. The clamping mechanism according to claim 5, characterized in that: The second abutting structure comprises a second inclined surface (331) arranged corresponding to the first inclined surface (322), and the second inclined surface (331) abuts against the second inclined surface (331).

7. The clamping mechanism according to claim 1, characterized in that: The first movable clamping claw (32) comprises a first claw body (32a) and a first connecting portion (32b), and the first connecting portion (32b) is fixedly connected to the first claw body (32a); The second movable clamping claw (33) comprises a second claw body (33a) and a second connecting portion (33b), and the second connecting portion (33b) is fixedly connected to the second claw body (33a); One of the first guide structure and the first abutment structure is provided on the force applying member (2), and the other of the first guide structure and the first abutment structure is provided on the first connecting portion (32b); and / or, One of the second guide structure and the second abutment structure is provided at the first connection portion (32b), and the other of the second guide structure and the second abutment structure is provided at the second connection portion (33b).

8. The clamping mechanism according to claim 7, characterized in that: The rotating disk (1) is provided with an avoidance groove (11); the first connecting portion (32b) is located in the avoidance groove (11); and / or, The second connecting portion (33b) is arranged in the avoidance groove (11).

9. The clamping mechanism according to any one of claims 1 to 8, characterized in that: There are a plurality of force-applying members (2), and the plurality of force-applying members (2) are arranged at intervals along the circumference of the rotating disk (1); and / or, The clamping jaw assemblies (3) are provided in plurality, and the plurality of clamping jaw assemblies (3) are arranged at intervals along the circumference of the rotating disk (1).

10. The clamping mechanism according to any one of claims 1 to 8, characterized in that: The clamp mechanism further comprises a rotation driving member (4), and the rotation driving member (4) is capable of driving the turntable (1) to rotate.

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