Clamping device

Abstract

The utility model discloses a clamping device which comprises a tool base used for placing a product; the clamping jaw is rotatably connected to the tool base; the opening of the clamping force arm is used for driving the clamping jaw to rotate in the direction away from the tool base so as to pick and place the product, and the closing of the clamping force arm is used for driving the clamping jaw to rotate in the direction close to the tool base so as to press the product; the driving piece is arranged on one side of the clamping force arm and used for making contact with or being separated from the clamping force arm so as to correspondingly achieve opening and closing of the clamping force arm. According to the clamping device, the product can be automatically pressed or loosened through the arrangement of the driving piece, the driving piece does not influence the movement of the tool, the driving piece does not need to move along with the tool, a pipeline or a cable does not need to be arranged, and the clamping device is suitable for clamping the product on long-distance circulation equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of product clamping equipment, and more specifically, to a clamping device. Background Art

[0002] In the field of automation equipment, the tooling base is a setting for facilitating the placement of products. For some products, the products need to be pressed to ensure the stability of product placement to facilitate subsequent operations, such as punching operations.

[0003] In the related technology, the products are clamped by manual elbow clamp or cylinder. The manual elbow clamp cannot automatically release the product after clamping, while the cylinder clamp can automatically release and clamp the product, but it needs to be connected to the air pipe and electrical signal. It cannot be used on equipment that requires a tooling base to flow over long distances such as shuttles or double-speed chains.

[0004] In summary, how to provide a clamping device that can automatically clamp or loosen products and can be used on long-distance circulation equipment is a problem that urgently needs to be solved by technical personnel in this field. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a clamping device, which can automatically clamp or loosen the product through the setting of a driving part. The driving part does not affect the movement of the tooling, nor does it need the driving part to follow the movement of the tooling. There is no need to set up pipelines or cables. It is suitable for clamping products on long-distance circulation equipment.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A clamping device, comprising:

[0008] Tooling base, used to place products;

[0009] A clamping jaw rotatably connected to the tooling base;

[0010] A clamping arm, wherein the opening of the clamping arm is used to drive the clamping jaw to rotate away from the tooling base to pick up and place the product, and the closing of the clamping arm is used to drive the clamping jaw to rotate toward the tooling base to press the product;

[0011] A driving member is arranged on one side of the clamping force arm and is used for contacting or separating with the clamping force arm to correspondingly realize the opening and closing of the clamping force arm.

[0012] Preferably, the tooling base is fixed on a base plate, and at least two groups of the clamping force arms are rotatably disposed on the base plate.

[0013] Preferably, a rotating seat is connected to the tooling base, one end of the clamping jaw is rotatably connected to the rotating seat via a rotating shaft, and the other end of the clamping jaw is connected to the rotating seat via an elastic member, and the opening of the clamping force arm is used to compress or stretch the elastic member to rotate the clamping jaw away from the tooling base.

[0014] Preferably, the driving member includes a power member and a pushing member connected to an output end thereof, and the power member can drive the pushing member to move to achieve contact or separation between the pushing member and the clamping force arm.

[0015] Preferably, the pushing member is a cam member, and the end of the clamping force arm away from the tooling base gradually increases in size from outside to inside to form an inner inclined surface structure, and the cam member moves to contact or separate from the inclined surface structure to achieve opening and closing of the clamping force arm.

[0016] Preferably, the clamping force arm includes a clamping portion and a contact portion connected thereto, the contact portion contacts the pushing member to achieve opening, and the opening of the contact portion corresponds to the closing of the clamping portion to compress the elastic member.

[0017] Preferably, a limit seat is provided on the bottom plate, and the clamping part includes a laterally arranged limit arm and a connecting arm connected to the clamping jaw, and the limit arm extends into the limit space of the limit seat to limit the rotation angle of the clamping jaw.

[0018] Preferably, a limiting column is provided on the limiting seat, the distance between two limiting columns is greater than the width of the limiting arm, and the height of the limiting column is greater than the height of the limiting arm.

[0019] Preferably, the connection position between the limiting arm and the contact portion is connected to the base plate by screws of equal height.

[0020] Preferably, a spherical contact portion is provided on the inner side of the connecting arm relative to the rotating seat, and the bottom of the clamping jaw abuts against the spherical contact portion at a position relative to the elastic member.

[0021] The clamping device provided by the utility model comprises a tooling base, a clamping claw, a clamping arm and a driving member, wherein the tooling base is used to place products, the clamping claw is rotatably connected to the tooling base, and the clamping arm is opened to drive the clamping claw to rotate in a direction away from the tooling base. At this time, the clamping claw and the tooling base are relatively far apart, and the operation of taking and placing products can be performed; and the clamping arm is closed to drive the clamping claw to rotate in a direction close to the tooling base to press the product; the opening and closing of the clamping arm is achieved by the contact and separation of the driving member and the clamping arm. After the driving member contacts the clamping arm to realize the rotation of the clamping claw for placing the product, the driving member can be separated from the clamping arm to realize the closing of the clamping arm to press the product. The product can be automatically pressed or loosened by the setting of the driving member. The driving member does not affect the movement of the tooling, nor does it need the driving member to follow the movement of the tooling. There is no need to set up pipelines or cables, and it is suitable for clamping products on long-distance circulation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of the clamping device provided by the utility model;

[0024] Figure 2 Another structural schematic diagram of the clamping device provided by the utility model;

[0025] Figure 3 for Figure 1 A top view of

[0026] Figure 4 A schematic diagram of the clamping device provided by the utility model in an open state;

[0027] Figure 5 A schematic diagram of a closed state of the clamping device provided by the utility model;

[0028] Figure 6 This is a partial structural schematic diagram of the clamping device provided by the utility model.

[0029] Figure 1-Figure 6 , the reference numerals include:

[0030] 1- tooling base; 2- rotating seat; 3- power piece; 4- clamping claw; 5- pushing piece; 6- bottom plate; 7- clamping arm; 8- limit seat; 9- equal height screw; 10- elastic piece;

[0031] 71 - connecting arm; 72 - limiting arm; 73 - contact portion; 74 - inclined surface structure; 711 - spherical contact portion; 81 - limiting column. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] The core of the utility model is to provide a clamping device, which can automatically clamp or loosen the product through the setting of a driving part. The driving part does not affect the movement of the tooling, nor does it need to follow the movement of the tooling. There is no need to set up pipelines or cables. It is suitable for clamping products on long-distance circulation equipment.

[0034] The clamping device provided by the utility model includes a tooling base 1, a clamping claw 4, a clamping force arm 7, and a driving member. Please refer to Figure 1-2 .

[0035] The tooling base 1 is used to place products, where the products may be electronic components, goods, mechanical components, etc. for process operations.

[0036] The clamping jaw 4 is rotatably connected to the tooling base 1 , that is, the clamping jaw 4 can rotate relative to the tooling base 1 .

[0037] The opening of the clamping arm 7 is used to drive the clamping jaw 4 to rotate away from the tooling base 1 to facilitate the picking and placing of the product, and the closing of the clamping arm 7 is used to drive the clamping jaw 4 to rotate toward the tooling base 1 to press the product.

[0038] It should be noted that the opening and closing of the clamping arm 7 here means that, based on the initial position of the clamping arm 7, the clamping arm 7 moves outward relative to the initial position to form an open state, and the clamping arm 7 returns from the open state to the initial position to form a closed state.

[0039] The driving member is arranged on one side of the clamping arm 7. When the driving member contacts the clamping arm 7, the clamping arm 7 is opened to drive the clamping jaw 4 to rotate in a direction away from the tooling base 1. At this time, there is a distance between the clamping jaw 4 and the tooling base 1, which can make room for product picking and placing, thereby improving the convenience of the picking and placing operation.

[0040] After taking and placing the products, the driving part can be separated from the clamping arm 7. At this time, the clamping arm 7 can be closed to drive the clamping jaw 4 to rotate in the direction close to the tooling base 1. At this time, the clamping jaw 4 is pressed on the tooling base 1 to wait for the next group of products to be placed in, or the clamping jaw 4 is pressed on the product of the tooling base 1.

[0041] Taking a specific implementation as an example, after the product is placed, the driving member and the clamping arm 7 are separated, and the clamping claw 4 is pressed on the product of the tooling base 1, and the driving member does not need to move with the tooling base 1. On the circulation equipment, if the tooling base 1 needs to rotate with the equipment, it is not limited by the connection of the driving member. After the product is placed, the product can be pressed without the driving member. Therefore, there is no need for transmission parts such as drag chains, air pipes, and cables, nor is there a need for external air sources, oil circuits, and electrical signals. It is suitable for circulation equipment with longer distances, and naturally it can also be applied to circulation equipment with shorter distances, and it has strong flexibility.

[0042] The rotation of the clamping jaw 4 is achieved by the contact and separation of the driving member and the clamping arm 7. When the driving member and the clamping arm 7 are separated, the force for the rotation of the clamping jaw 4 can come from the force generated when the clamping arm 7 is opened. For example, an elastic element can be provided between the clamping arm 7 and the clamping jaw 4, or an elastic element can be provided between the clamping arm 7 and the tooling base 1. When the clamping arm 7 is closed, the resetting force of the elastic element can be assisted by the driving member without the assistance of the driving member. This is suitable for circulation equipment over longer distances, avoids the use of pipelines and cables, and reduces the cost of use.

[0043] The clamping device comprises a tooling base 1, a clamping jaw 4, a clamping arm 7 and a driving member, wherein the tooling base 1 is used to place products, the clamping jaw 4 is rotatably connected to the tooling base 1, and the clamping arm 7 is opened to drive the clamping jaw 4 to rotate in a direction away from the tooling base 1. At this time, the clamping jaw 4 and the tooling base 1 are relatively far apart, and the operation of taking and placing products can be performed; and the clamping arm 7 is closed to drive the clamping jaw 4 to rotate in a direction close to the tooling base 1 to press the product; the opening and closing of the clamping arm 7 is achieved by the contact and separation of the driving member and the clamping arm 7. After the driving member contacts the clamping arm 7 to realize the rotation of the clamping jaw 4 for placing the product, the driving member can be separated from the clamping arm 7 to realize the closing of the clamping arm 7 to press the product. The product can be automatically pressed or loosened by the setting of the driving member. The driving member does not affect the movement of the tooling, nor does it need to follow the movement of the tooling. There is no need to set up pipelines or cables, and it is suitable for clamping products on long-distance circulation equipment.

[0044] On the basis of any of the above embodiments, the tooling base 1 is fixed on the base plate 6 , and at least two groups of clamping force arms 7 are rotatably disposed on the base plate 6 .

[0045] Please refer to Figure 1-2The tooling base 1 is fixed on the bottom plate 6 , and the bottom plate 6 is fixedly arranged to form a reliable and stable support for the tooling base 1 .

[0046] At least two groups of clamping force arms 7 are rotatably arranged on the bottom plate 6 , and the rotatable connection method can be a pin shaft, which can achieve smooth rotation of the clamping force arms 7 .

[0047] The setting of at least two sets of clamping force arms 7 corresponds to the clamping of at least two sides of the product. If it is necessary to meet the special needs of certain products, it can be clamped on multiple sides of the product. The design can be based on actual needs. However, it should be noted that even if multiple sets of clamping force arms 7 are set, a certain safety distance must be left between them to avoid interference between the clamping force arms 7 when rotating.

[0048] Based on any of the above embodiments, a rotating base 2 is connected to the tooling base 1, one end of the clamp 4 is rotatably connected to the rotating base 2 via a rotating shaft, and the other end of the clamp 4 is connected to the rotating base 2 via an elastic member 10. The opening of the clamping arm 7 is used to compress or stretch the elastic member 10 to rotate the clamp 4 away from the tooling base 1.

[0049] Please refer to Figure 1-2 , Figure 4-6 The tooling base 1 is connected to a rotating base 2, and the rotating base 2 here can be detachably connected or welded to the tooling base 1 and can be set according to actual conditions.

[0050] One end of the clamping jaw 4 is rotatably connected to the rotating base 2 via a rotating shaft, and the other end of the clamping jaw 4 is connected to the rotating base 2 via an elastic member 10. The opening of the clamping arm 7 is used to compress or stretch the elastic member 10, so that the elastic member 10 has a compression amount or a stretching amount. When the driving member releases the contact with the clamping arm 7, the reset force of the elastic member 10 can move the clamping jaw 4 in a direction close to the tooling base 1 to press the product on the tooling base 1 or rotate to the top of the tooling base 1 to wait for the next product to be put in.

[0051] For a specific implementation example, please refer to Figure 6 The clamping jaw 4 is in a right-angle shape as a whole, and the horizontal part extends to the upper end of the tooling base 1. The upper end of the vertical part is connected to the rotating seat 2 by a rotating shaft, and the lower end of the vertical part is connected to the rotating seat 2 by an elastic member 10. When the clamping arm 7 is open, the elastic member 10 is compressed, so that the upper end of the vertical part can rotate relative to the rotating shaft and deviate outward, and the corresponding horizontal part can rotate upward to make room for product placement. After placing or taking out the product, the compression force of the elastic member 10 can cause the lower end of the vertical part to deviate inward, and the corresponding upper end of the vertical part can rotate relative to the rotating shaft and deviate inward. At this time, the horizontal part rotates to press on the product.

[0052] Taking another specific embodiment as an example, the clamping jaw 4 is in a right-angle shape as a whole, the horizontal part extends to the upper end of the tooling base 1, the lower end of the vertical part is rotatably connected to the rotating seat 2 through a rotating shaft, and the upper end of the vertical part is connected to the rotating seat 2 through an elastic member 10. When the clamping force arm 7 is open, the elastic member 10 is stretched, so that the lower end of the vertical part can rotate relative to the rotating shaft and deflect outward, and the corresponding horizontal part can rotate upward to make room for product placement. After placing or taking out the product, the restoring force of the stretched elastic member 10 can make the lower end of the vertical part rotate relative to the rotating shaft and deflect inward, and at this time the horizontal part rotates to press on the product.

[0053] In the above two specific embodiments, the connection part or the abutment part between the clamping force arm 7 and the clamping jaw 4 is located at the lower end of the vertical part.

[0054] The clamping arm 7 and the lower end of the vertical portion of the clamping jaw 4 may be directly connected, or the clamping arm 7 may abut against the lower end of the vertical portion of the clamping jaw 4, whichever meets the actual use requirements.

[0055] Based on any of the above embodiments, the driving member includes a power member 3 and a pushing member 5 connected to an output end thereof, and the power member 3 can drive the pushing member 5 to move to achieve contact or separation between the pushing member 5 and the clamping force arm 7 .

[0056] Please refer to Figure 1-2 The driving member includes a power member 3 and a pushing member 5 connected to its output end, wherein the power member 3 can be a motor, a cylinder, an oil cylinder, etc. in order to realize the movement of the pushing member 5. The pushing member 5 is connected through the output end of the power member 3 to realize the movement of the pushing member 5 toward or away from the clamping arm 7. First, the pushing member 5 can be in contact with the clamping arm 7 to open the clamping arm 7, so as to realize the design requirement that the clamping jaw 4 is away from the tooling base 1; second, the pushing member 5 and the clamping arm 7 can be separated, specifically, the pushing member 5 is removed by the power member 3, so that the pushing member 5 and the clamping arm 7 are not in contact with each other, so as to realize the closed state of the clamping arm 7, so as to realize the design requirement that the clamping jaw 4 is close to the tooling base 1.

[0057] After the power member 3 drives the pushing member 5 to open the clamping arm 7 to take and place the product, the power member 3 can be used to drive the pushing member 5 to move away. At this time, under the action of the elastic member 10, the clamping arm 7 is turned into a closed state, and the clamping claw 4 is pressed on the product. It is no longer necessary to rely on the power member 3, and the circulation of the tooling base 1 is not affected. The use of cables and pipelines is avoided, the use cost is reduced, and the control process is reduced. It is suitable for long-distance circulation equipment.

[0058] Based on any of the above embodiments, the pusher 5 is a cam member, and the end of the clamping arm 7 away from the tooling base 1 gradually increases in size from the outside to the inside to form an inner inclined structure 74, and the cam member moves to contact or separate from the inclined structure 74 to achieve the opening and closing of the clamping arm 7.

[0059] Please refer to Figure 3-5 The pushing member 5 is specifically a cam member, and the end of the clamping force arm 7 away from the tooling base 1 decreases in size from the outside to the inside. The inside and outside here specifically refer to the direction close to the tooling base 1 as the inside, and the direction away from the tooling base 1 as the outside, based on the position of the tooling base 1.

[0060] The end of the clamping arm 7 away from the tooling base 1 is reduced in size from outside to inside to form a slope structure 74. In the process from the cam member moving to gradually contacting the slope structure 74, due to the setting of the slope structure 74, the clamping arm 7 can gradually be in an open state.

[0061] When the cam member gradually moves away from the inclined surface structure 74, the clamping force arm 7 can gradually be in a closed state. The specific length and angle of the inclined surface structure 74 can be set according to actual needs without limitation.

[0062] Taking the arrangement of two clamping arms 7 as an example, the output end of the power member 3 is connected to two cam members. When the cam member moves between the two clamping arms 7 and contacts the inclined surface structure 74, the clamping arms 7 can be gradually opened. When the cam member moves out from between the two clamping arms 7 and gradually moves away from the inclined surface structure 74, the clamping arms 7 gradually become closed.

[0063] Based on any of the above embodiments, the clamping force arm 7 includes a clamping portion and a contact portion 73 connected thereto, the contact portion 73 contacts the pushing member 5 to achieve opening, and the opening of the contact portion 73 corresponds to the closing of the clamping portion to compress the elastic member 10.

[0064] Please refer to Figure 3 The clamping force arm 7 is rotatably connected to the base plate 6. The clamping force arm 7 specifically includes a clamping portion and a contact portion 73 connected thereto. An inclined surface structure 74 is provided on the contact portion 73. When the push member 5 (i.e., the cam member) contacts the inclined surface structure 74, the contact portions 73 of the two clamping force arms 7 are in a relatively distant state, and the clamping portions of the two clamping force arms 7 are in a relatively close state.

[0065] When the contact portions 73 of the two clamping force arms 7 are in a relatively distant state to be opened, the clamping portion is closed to compress the elastic member 10 , so that the clamping claw 4 rotates upward to be away from the tooling base 1 .

[0066] like Figure 3 As shown by the arrow, Figure 3The left side of the arrow is the initial state of the pusher 5 . After the power member 3 drives the pusher 5 to move a certain distance, the pusher 5 reaches the position on the right side of the arrow and gradually contacts the inclined surface structure 74 .

[0067] Based on any of the above embodiments, a limit seat 8 is provided on the base plate 6, and the clamping part includes a laterally arranged limit arm 72 and a connecting arm 71 connected to the clamping jaw 4, and the limit arm 72 extends into the limit space of the limit seat 8 to limit the rotation angle of the clamping jaw 4.

[0068] Please refer to Figure 1 , Figure 3 A limiting seat 8 is fixed on the bottom plate 6, and the clamping portion specifically includes a laterally arranged limiting arm 72 and a connecting arm 71 connected to the clamping jaw 4. It should be noted that the limiting arm 72, the connecting arm 71 and the contact portion 73 are integrally formed.

[0069] The limiting seat 8 is provided with a limiting space, and the limiting arm 72 extends into the limiting space. When the clamping arm 7 rotates, the limiting arm 72 moves in the limiting space. The movement here refers to the up and down rotation around the hinge point between the bottom plate 6 and the clamping arm 7, which actually corresponds to the up and down rotation of the clamping jaw 4. Through the setting of the limiting seat 8, the rotation of the clamping arm 7 is more reliable, the rotation range of the clamping jaw 4 is limited, and it is ensured that the clamping jaw 4 will not damage the product or surrounding parts due to excessive movement, and the safety and reliability of the rotation of the clamping jaw 4 is ensured.

[0070] On the basis of any of the above embodiments, a limiting column 81 is provided on the limiting seat 8 , the distance between two limiting columns 81 is greater than the width of the limiting arm 72 , and the height of the limiting column 81 is greater than the height of the limiting arm 72 .

[0071] Please refer to Figure 1 , Figure 3 A limiting column 81 is provided on the limiting seat 8, and the distance between the two limiting columns 81 is greater than the width of the limiting arm 72, providing a moving space for the rotation of the limiting arm 72. Furthermore, the height of the limiting column 81 is set to be greater than the height of the limiting arm 72, ensuring that the limiting arm 72 will not run out of the limiting space formed by the two limiting columns 81, thereby ensuring the safety and reliability of the operation.

[0072] Optionally, the limiting column 81 can be detachably connected to the base of the limiting seat 8, so that the distance between the two limiting columns 81 can be adjusted according to actual needs, so that the clamping device as a whole has higher flexibility.

[0073] On the basis of any of the above embodiments, the connection position between the limiting arm 72 and the contact portion 73 is connected to the bottom plate 6 by means of equal height screws 9 .

[0074] Please refer to Figure 1 , Figure 6The specific structure of the contour screw 9 is that the bottom has a thread, the middle is a smooth surface, the top is larger than the middle and has a thread on the outer periphery. When in use, the bottom of the contour screw 9 is connected to the base plate 6, the middle of the contour screw 9 and the clamping force arm 7 are rotationally connected, and the top of the contour screw 9 is located at the upper end of the clamping force arm 7 to limit the upward movement of the clamping force arm 7. By twisting the external thread on the top of the contour screw 9, the thread on the bottom of the contour screw 9 is threadedly connected to the base plate 6.

[0075] Specifically, the equal height screw 9 is arranged at the connection position between the limiting arm 72 and the contact portion 73 , so that when the contact portion 73 of the clamping force arm 7 rotates outward, the clamping portion can rotate inward to compress the elastic member 10 .

[0076] By setting the equal height screws 9, the clamping force arm 7 can be limited with a relatively simple structure, reducing the use cost, and ensuring the height consistency of the two clamping force arms 7, thereby ensuring accurate and effective control of the rotation of the clamping jaw 4.

[0077] On the basis of any of the above embodiments, a spherical contact portion 711 is provided on the inner side of the connecting arm 71 relative to the rotating seat 2 , and the bottom of the clamping jaw 4 abuts against the spherical contact portion 711 at a position relative to the elastic member 10 .

[0078] Please refer to Figure 5 , Figure 6 A spherical contact portion 711 is provided on the inner side of the connecting arm 71 relative to the rotating seat 2. When the connecting arm 71 rotates, the spherical contact portion 711 can abut against the bottom of the clamping jaw 4 to compress the elastic member 10. Specifically, the bottom of the clamping jaw 4 abuts against the spherical contact portion 711 at the relative position of the elastic member 10, thereby ensuring the directness and effectiveness of force transmission.

[0079] By providing the spherical contact portion 711 , damage to the clamping jaw 4 itself can be avoided to a certain extent, thereby ensuring its service life.

[0080] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0081] The above is a detailed introduction to a clamping device provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A clamping device, characterized in that: include: A tooling base (1), used for placing the product; A clamping claw (4) rotatably connected to the tooling base (1); a clamping force arm (7), wherein the opening of the clamping force arm (7) is used to drive the clamping claw (4) to rotate in a direction away from the tooling base (1) to pick up and place the product, and the closing of the clamping force arm (7) is used to drive the clamping claw (4) to rotate in a direction close to the tooling base (1) to press the product; A driving member is arranged on one side of the clamping force arm (7) and is used to contact or separate from the clamping force arm (7) to correspondingly realize the opening and closing of the clamping force arm (7).

2. The clamping device according to claim 1, characterized in that The tooling base (1) is fixed on a base plate (6), and at least two groups of clamping force arms (7) are rotatably arranged on the base plate (6).

3. The clamping device according to claim 2, characterized in that: The tooling base (1) is connected to a rotating base (2); one end of the clamping jaw (4) is rotatably connected to the rotating base (2) via a rotating shaft; the other end of the clamping jaw (4) is connected to the rotating base (2) via an elastic member (10); the clamping force arm (7) is opened to compress or stretch the elastic member (10) so that the clamping jaw (4) rotates in a direction away from the tooling base (1).

4. The clamping device according to claim 3, characterized in that: The driving member comprises a power member (3) and a pushing member (5) connected to an output end thereof, wherein the power member (3) can drive the pushing member (5) to move so as to achieve contact or separation between the pushing member (5) and the clamping force arm (7).

5. The clamping device according to claim 4, characterized in that The pushing member (5) is a cam member, and the end of the clamping force arm (7) away from the tooling base (1) gradually increases in size from the outside to the inside to form an inner inclined surface structure (74), and the cam member moves to contact or separate from the inclined surface structure (74) to achieve opening and closing of the clamping force arm (7).

6. The clamping device according to claim 4 or 5, characterized in that: The clamping force arm (7) comprises a clamping portion and a contact portion (73) connected thereto, wherein the contact portion (73) contacts the pushing member (5) to achieve opening, and the opening of the contact portion (73) corresponds to the closing of the clamping portion to compress the elastic member (10).

7. The clamping device according to claim 6, characterized in that A limit seat (8) is provided on the bottom plate (6), and the clamping portion comprises a horizontally arranged limit arm (72) and a connecting arm (71) connected to the clamping claw (4), and the limit arm (72) extends into the limit space of the limit seat (8) to limit the rotation angle of the clamping claw (4).

8. The clamping device according to claim 7, characterized in that The limiting seat (8) is provided with a limiting column (81), the distance between two limiting columns (81) is greater than the width of the limiting arm (72), and the height of the limiting column (81) is greater than the height of the limiting arm (72).

9. The clamping device according to claim 8, characterized in that The connection position between the limiting arm (72) and the contact portion (73) is connected to the bottom plate (6) via equal height screws (9).

10. The clamping device according to claim 9, characterized in that A spherical contact portion (711) is provided on the inner side of the connecting arm (71) relative to the rotating seat (2), and the bottom of the clamping claw (4) abuts against the spherical contact portion (711) at a position relative to the elastic member (10).

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