Clamping device

Abstract

The utility model discloses a clamping device which comprises a supporting assembly, a connecting rod is arranged on the supporting assembly, and the connecting rod is rotationally connected with a clamp. The driving assembly drives the clamp assembly to contract or expand through a connecting rod; the abutting assembly is arranged on the supporting assembly and used for abutting and fixing the workpiece when the workpiece is clamped; when the workpiece needs to be clamped, the driving end of the driving assembly can be retracted, and then the connecting rod is driven to rotate, so that the clamp assembly gets close to the middle, and the side face of the workpiece is clamped; and the back face of the workpiece is fixed in an abutting-against mode through the abutting-against assembly, so that the clamp clamps the workpiece in a wrapping mode, and then the clamping stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to workpiece clamping, especially a clamping device. BACKGROUND

[0002] In prior art, when the clamping device drives workpiece transfer or other operations, the driving member is generally used to drive two clamping parts to suspend and clamp the workpiece. In this clamping mode, the workpiece is only fixed by the static friction between the clamping part and the contact part of the workpiece. If the gravity of the workpiece is too large or the clamping force is too small, the workpiece is unstable. Therefore, a new clamping device is needed to improve the clamping stability. SUMMARY

[0003] To solve the technical problems in the background art, the utility model provides a clamping device, which comprises:

[0004] A support assembly is provided with a connecting rod, and the connecting rod is rotatably connected with a clamp.

[0005] A driving assembly is used to drive the clamp assembly to contract or expand through the connecting rod.

[0006] A resisting assembly is arranged on the support assembly to resist and fix the workpiece during clamping.

[0007] Preferably, the driving assembly comprises a driving member and a limiting member, the output end of the driving member is connected with the limiting member, and the limiting member is slidingly installed on the support assembly.

[0008] Preferably, the connecting rod is provided with two groups and is symmetrically arranged on both sides of the limiting member, one end of the connecting rod is rotatably connected with the limiting member, and the other end of the connecting rod is rotatably connected with the clamp assembly.

[0009] Preferably, the clamp assembly comprises two symmetrically arranged clamping wings, one end of the clamping wing is rotatably connected with the connecting rod through a first rotating shaft and rotatably connected with the support assembly through a second rotating shaft in sequence.

[0010] Preferably, the other end of the two clamping wings is sequentially provided with a first gasket and a clamping part, and the number of the first gaskets is adjustable.

[0011] Preferably, the resisting assembly comprises a clamping piece fixedly arranged on the support assembly, and one end of the clamping piece is sequentially provided with a second gasket and a resisting block.

[0012] Preferably, the number of the second gaskets is adjustable.

[0013] Preferably, the support assembly comprises a flat plate, two flat plates are arranged in a vertical direction and are provided with a side plate at one end of the flat plate, and the flat plate is provided with a limiting sliding groove matched with the limiting member.

[0014] The utility model discloses a drive end contraction can drive the connecting rod rotation to make the fixture assembly draw together to the middle to carry out the side clamping to workpiece when needing to clamp workpiece, and through the resistance and touch subassembly resistance and touch fixed to the back of workpiece, make the fixture carry out the wrapping type clamping to workpiece, and then improve the clamping stability. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the partial structure schematic diagram of the utility model.

[0017] Figure 3 It is the drive mechanism structure schematic diagram in the utility model.

[0018] Figure 4 It is the resistance and touch subassembly structure schematic diagram in the utility model.

[0019] Figure 5 It is the flat plate mechanism structure schematic diagram in the utility model.

[0020] Figure 6 It is the clamping assembly structure schematic diagram in the utility model, DETAILED DESCRIPTION

[0021] The embodiments of the utility model are described in detail below, and the examples of the embodiments are represented in the drawings, wherein the same or similar symbols represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model and cannot be understood as limiting the utility model.

[0022] As Figures 1-6 The utility model discloses a clamping device, support assembly 1 is provided with connecting rod 6 on support assembly 1, and the connecting rod 6 is rotatably connected with clamp 5, drive assembly is driven clamp assembly 5 to contract or open through connecting rod 6, and resistance and touch subassembly 4 is arranged on support assembly 1 and is used for resistance and touch fixed when clamping workpiece.

[0023] That is, when needing to clamp workpiece, the drive end contraction can drive the connecting rod 6 rotation, make clamp assembly 5 draw together to the middle to carry out the side clamping to workpiece, and through resistance and touch subassembly 4, resistance and touch fixed to the back of workpiece, make the fixture carry out the wrapping type clamping to workpiece, and then improve the clamping stability.

[0024] Further implementation, the drive assembly includes drive piece 2, limit piece 3, the output end of drive piece 2 is fixedly connected with limit piece 3, limit piece 3 is slidably installed on support assembly 1, and drive piece 2 is air cylinder.

[0025] That is, by driving the limiting piece 3 to slide on the support assembly 1 to ensure that the two connecting rods 6 are close to the middle, the workpiece is uniformly clamped on both sides, thereby ensuring the stability of clamping the workpiece; while ensuring that the workpiece is stably clamped by the clamp assembly 5, the two connecting rods 6 are located on the same straight line and perpendicular to the extension direction of the driving piece, thereby even when the air pressure of the cylinder is insufficient, self-locking can be achieved through the connecting rod 6 to prevent loosening of clamping.

[0026] In a further embodiment, the limiting piece 3 comprises a limiting block 31, the limiting block 31 is fixedly connected with the driving end of the driving piece 2, and the limiting block 31 is symmetrically provided with a sliding block 33 on the upper and lower sides, and the sliding block 33 is connected with the limiting block 31 through a screw 32.

[0027] That is, the limiting piece 3 can slide on the support assembly 1 through the upper and lower sliding blocks 33, that is, through double limiting to further ensure the stability of sliding, so as to stably clamp the workpiece.

[0028] In a further embodiment, the support assembly 1 comprises two groups of flat plates 11, the two groups of flat plates 11 are spaced apart along the vertical direction, one end of the flat plate 11 is bolted with a side plate 13, the flat plate 11 is provided with a limiting sliding groove 12 adapted to the sliding block 33, the side plate 13 is provided with a mounting hole, the driving piece 2 is fixedly installed at one end of the side plate 13, and the driving end of the driving piece 2 extends into the mounting hole and is fixedly connected with the limiting block located between the upper and lower two groups of flat plates 11.

[0029] In a further embodiment, the clamp assembly 5 comprises two symmetrically arranged clamping wings 51, the clamping wing 51 is sequentially bolted with a first gasket 52 and a clamping part 53 away from one end of the connecting rod 6, the number of the first gasket 52 is adjustable, and the clamping wing 51 is rotatably connected to the support assembly 1 through a second rotating shaft 7.

[0030] That is, the number of the first gasket 52 can be adjusted according to the size of the workpiece, thereby adjusting the distance between the two clamping parts, so as to increase the use range of the clamp.

[0031] In a further embodiment, the connecting rod 6 is two groups and symmetrically arranged on both sides of the limiting block 31, one end of the connecting rod 6 is inserted into the extension of the limiting block 3 and rotatably connected through a third rotating shaft, and the other end of the connecting rod 6 is inserted into the clamping wing 51 and rotatably connected through a first rotating shaft.

[0032] Further, the connecting rod 6, the limiting block 31 and the clamping wing 51 are first inserted and then connected through the rotating shaft, that is, the three can be relatively rotated while the connection stability is increased, thereby ensuring the stable clamping of the workpiece.

[0033] Further, the flat plate 11 is provided with a groove at one end away from the side plate 13, the abutting component 4 comprises a clamping piece 41, the clamping piece 41 is bolted in the groove of the side plate 13, and the clamping piece 41 is sequentially provided with a second gasket 42 and an abutting block 43, and the second gasket 42 and the abutting block 43 are bolted on the clamping piece 41.

[0034] The number of the second gaskets 42 can be adjusted.

[0035] That is, according to the different sizes of the workpieces, the abutting block 43 can extend to different lengths, so that the abutting block 43 is attached to the workpiece, thereby ensuring the clamping effect on the workpiece.

[0036] Working principle: first, the workpiece is placed in the inside of the clamp component 5, and then the driving assembly 2 drives the limiting piece 3 to slide in the limiting sliding groove 12 to drive the two connecting rods 6 to rotate synchronously, thereby causing the clamp to rotate and clamp the side surface of the workpiece, and the abutting component 4 with adjustable spacing is used to abut and fix the other side surfaces of the workpieces of different sizes, so that the clamp can wrap the workpiece and clamp it stably.

[0037] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0038] In addition, the terms "first" and "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0039] In the utility model, unless another definite provision and limitation, the term " install ", " link ", " connect ", " fixed " and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be direct connection, also can pass through intermediate medium indirectly connect, can be two element internal communication or two element mutual action relation, unless another definite limitation. For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances.

[0040] In the utility model, unless another definite provision and limitation, first feature is " on " or " under " second feature can be first and second feature direct contact, or first and second feature indirectly contact by intermediate medium. Moreover, first feature is " on ", " above " and " on " second feature can be first feature is directly above or obliquely above second feature, or just indicate that the horizontal height of first feature is higher than second feature. First feature is " under ", " below " and " under " second feature can be first feature is directly below or obliquely below second feature, or just indicate that the horizontal height of first feature is less than second feature.

[0041] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the inventive concept of the utility model are equivalent to replace or change, should be covered in the protection scope of the utility model.

Claims

1. A clamping device, characterized in that Include: Support assembly (1), the support assembly (1) is provided with connecting rod (6), the connecting rod (6) is rotatably connected with clamp assembly (5); Driving assembly, the driving assembly drives clamp assembly (5) to contract or expand through connecting rod (6); Resist component (4), the resist component (4) is arranged on support assembly (1) for resisting fixed when workpiece clamping.

2. The clamping device of claim 1, wherein The driving assembly includes driving part (2), limiting part (3), the output end of the driving part (2) is connected with limiting part (3), and the limiting part (3) is slidably installed on the support assembly (1).

3. The clamping device of claim 2, wherein The connecting rod (6) is provided with two groups and symmetrically arranged on the two sides of the limiting part (3), one end of the connecting rod (6) is rotatably connected with the limiting part (3), and the other end of the connecting rod (6) is rotatably connected with the clamp assembly (5).

4. The clamping device according to claim 3, characterized in that The clamp assembly (5) includes two symmetrically arranged clamping wings (51), one end of the clamping wing (51) is rotatably connected with the connecting rod (6) through the first rotating shaft, and the second rotating shaft (7) is rotatably connected with the support assembly (1).

5. The clamping device of claim 4, wherein The other end of the two clamping wings (51) is sequentially provided with first gasket (52), clamping part (53), and the number of the first gasket (52) can be adjusted.

6. The clamping device of claim 1, wherein The resist component (4) includes the clamping piece (41) fixedly arranged on the support assembly (1), one end of the clamping piece (41) is sequentially provided with the second gasket (42) and the resisting block (43).

7. The clamping device according to claim 6, characterized in that The number of the second gasket (42) can be adjusted.

8. The clamping device of claim 2, wherein The support assembly (1) includes flat plate (11), two flat plates (11) are vertically spaced apart, and one end of the flat plate (11) is provided with a side plate, the flat plate (11) is provided with a limiting sliding groove (12) matched with the limiting part (3).

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