gripping device

Abstract

The clamping device comprises a support assembly, a rotating assembly, a moving assembly, a first clamping assembly, a second clamping assembly, a first damping assembly and a second damping assembly. The support assembly comprises a bottom plate and a top plate, and the bottom plate and the top plate are arranged in a spaced manner. The rotating assembly comprises a driving member and a rotating shaft, and the driving member is used to drive the rotating shaft to rotate in a second direction. The moving assembly comprises a first linkage, a second linkage and a connecting member. The first linkage is fixed on the rotating shaft, the first linkage drives the second linkage to move, the connecting member is fixedly connected with the second linkage, the connecting member comprises a first inclined surface and a second inclined surface, and the first inclined surface and the second inclined surface form a tapered structure. The first clamping assembly is slidably connected with the first inclined surface, the second clamping assembly is slidably connected with the second inclined surface, the first clamping assembly and the second clamping assembly are arranged through and protrude from the top plate, and are used to clamp a workpiece. The first damping assembly is elastically connected between the top plate and the first clamping assembly. The second damping assembly is elastically connected between the top plate and the second clamping assembly.

Description

Technical Field

[0001] This application relates to the field of mechanical technology, and more particularly to a clamping device. Background Technology

[0002] In automated assembly operations, workpiece clamping is a common process. Currently, traditional clamping methods mostly rely on manual operation or simple mechanical structures. When faced with scenarios where the horizontal space of the workpiece is limited, problems such as operational interference and inaccurate alignment often occur, leading to low assembly efficiency and easy damage to the workpiece due to uneven force. At the same time, existing solutions for coordinating automated control and clamping mechanisms are insufficient in terms of spatial adaptability, making it difficult to stably complete clamping and assembly actions in limited horizontal spaces. This fails to meet the requirements of high-precision and high-efficiency assembly, and these problems restrict the application of automated assembly technology in confined space scenarios. Utility Model Content

[0003] In view of this, it is necessary to provide a clamping device that can improve assembly efficiency in order to solve the above problems.

[0004] A clamping device for clamping a workpiece includes a support assembly, a rotating assembly, a moving assembly, a first clamping assembly, a second clamping assembly, a first damping assembly, and a second damping assembly. The support assembly includes a base plate and a top plate, which are spaced apart along a first direction, and the top plate supports the workpiece. The rotating assembly includes a drive member and a rotating shaft, which are connected to each other, and the drive member drives the rotating shaft to rotate about a second direction. The moving assembly includes a first linkage member, a second linkage member, and a connecting member. The first linkage member is fixed to the rotating shaft, and the second linkage member is drively connected to the first linkage member and is used to move along the first direction. The connecting member is fixedly connected to the second linkage member, and the connecting member includes a first inclined surface and a second inclined surface facing away from each other, which are along the first direction. A tapered structure is formed; the first clamping assembly and the second clamping assembly are located on opposite sides of the connector, the first clamping assembly and the first inclined surface are slidably connected, the second clamping assembly and the second inclined surface are slidably connected, the first clamping assembly and the second clamping assembly both pass through and protrude from the top plate, the first clamping assembly and the second clamping assembly are used to clamp the workpiece, the distance between the first clamping assembly and the second clamping assembly along a third direction can be changed; the first damping assembly elastically connects the top plate and the first clamping assembly along the third direction; the second damping assembly elastically connects the top plate and the second clamping assembly along the third direction.

[0005] In some possible implementations, the first clamping assembly includes a first clamping member and a first roller, the first roller and the first clamping member being rotatably connected, the first roller and the first inclined surface being slidably connected, and the first roller being used to drive the first clamping member to move along the third direction; the second clamping assembly includes a second clamping member and a second roller, the second roller and the second clamping member being rotatably connected, the second roller and the second inclined surface being slidably connected, and the second roller being used to drive the second clamping member to move along the third direction.

[0006] In some possible implementations, the first damping assembly includes a first fixing member and a first elastic member, the first fixing member being fixedly connected to the top plate, and the first elastic member being elastically connected to the first fixing member and the first clamping member along the third direction; the second damping assembly includes a second fixing member and a second elastic member, the second fixing member being fixedly connected to the top plate, and the second elastic member being elastically connected to the second fixing member and the second clamping member along the third direction.

[0007] In some possible embodiments, the first clamping member includes a first body portion and a first clamping portion, the first roller and the first body portion are rotatably connected, the first clamping portion is located at the end of the first body portion opposite to the first roller, and the first clamping portion passes through and protrudes from the top plate; the second clamping member includes a second body portion and a second clamping portion, the second roller and the second body portion are rotatably connected, the second clamping portion is located at the end of the second body portion opposite to the second roller, and the second clamping portion passes through and protrudes from the top plate.

[0008] In some possible embodiments, the first clamping assembly further includes a first connecting rod passing through one end of the first body portion opposite to the first clamping portion, and the first roller is sleeved on the first connecting rod; the second clamping assembly further includes a second connecting rod passing through one end of the second body portion opposite to the second clamping portion, and the second roller is sleeved on the second connecting rod.

[0009] In some possible implementations, the first inclined surface is an arc surface or a plane; and / or the second inclined surface is an arc surface or a plane.

[0010] In some possible implementations, the first linkage includes a first gear that surrounds the shaft; the second linkage includes a second gear that is arranged along the first direction, and the second gear and the first gear mesh with each other.

[0011] In some possible embodiments, the clamping device further includes a guide assembly comprising a slider and a slide rail, the slider being fixedly connected to the connector, the slide rail being fixedly connected to the base plate, and the slider and the slide rail being slidably connected along the first direction.

[0012] In some possible implementations, the movable component further includes a bumper fixed to one end of the connector near the top plate, the bumper protruding toward the top plate relative to the connector.

[0013] In some possible implementations, the support assembly further includes a support frame that connects the base plate and the top plate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the clamping device provided in an embodiment of this application.

[0015] Figure 2 This is a schematic diagram of the clamping device provided in the embodiment of this application when the workpiece is not clamped.

[0016] Figure 3 for Figure 1 The clamping device shown is a cross-sectional schematic diagram along the AA direction.

[0017] Figure 4 This is a schematic diagram of the structure of the clamping device for clamping a workpiece provided in an embodiment of this application.

[0018] Figure 5 for Figure 4 The clamping device shown is a cross-sectional schematic diagram along one direction.

[0019] Explanation of main component symbols The following detailed description, in conjunction with the accompanying drawings, further illustrates this application. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this application; the described embodiments are merely some, not all, of the embodiments described in this application.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes all and any combination of one or more of the associated listed items.

[0022] In the various embodiments of this application, for ease of description and not limitation, the term "connection" used in the patent application specification and claims is not limited to physical or mechanical connections, whether direct or indirect. Terms such as "upper," "lower," "above," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0023] Please see Figure 1 , Figure 1 This is a schematic diagram of the clamping device 100 provided in an embodiment of this application. The clamping device 100 is used to detachably clamp the workpiece 90 (see [link]). Figure 4 , Figure 5 ).

[0024] Please refer to the following: Figure 2 , Figure 3 , Figure 4 and Figure 5 The clamping device 100 may include a support assembly 10, a rotating assembly 20, a moving assembly 30, a first clamping assembly 40, a second clamping assembly 50, a first damping assembly 60, and a second damping assembly 70. The rotating assembly 20 and the moving assembly 30 are disposed on the support assembly 10. The rotating assembly 20 is used to drive the moving assembly 30 to move, thereby driving the first clamping assembly 40 and the second clamping assembly 50 to move. The distance between the first clamping assembly 40 and the second clamping assembly 50 can be changed. The first damping assembly 60 elastically connects the first clamping assembly 40 and the support assembly 10, and the second damping assembly 70 elastically connects the second clamping assembly 50 and the support assembly 10, thereby enabling the workpiece 90 to be detachably clamped.

[0025] The support assembly 10 may include a base plate 11, a top plate 12, and a support frame 13. The base plate 11 and the top plate 12 are spaced apart along a first direction L1, and the support frame 13 is located between the base plate 11 and the top plate 12 and connects the base plate 11 and the top plate 12. In this embodiment, there are four support frames 13, which are spaced apart, and both ends of each support frame 13 are fixedly connected to the base plate 11 and the top plate 12, respectively.

[0026] The rotating assembly 20 may include a driving member 21 and a rotating shaft 22, wherein the driving member 21 and the rotating shaft 22 are connected, and the driving member 21 drives the rotating shaft 22 to rotate about the second direction L2. The rotating assembly 20 may also include a first fixed frame 23 and a second fixed frame 24, both of which are fixed to the base plate 11. The rotating shaft 22 passes through the first fixed frame 23 along the second direction L2, and the rotating shaft 22 and the first fixed frame 23 are rotatably connected, with the first fixed frame 23 supporting the rotating shaft 22. The driving member 21 is fixed to the second fixed frame 24, which supports the driving member 21. The driving member 21 may include a cylinder for driving the rotating shaft 22 to rotate.

[0027] The moving component 30 may include a first linkage 31, a second linkage 32, and a connecting member 33. The first linkage 31 is fixed to the rotating shaft 22 and can rotate synchronously with the rotating shaft 22 about the second direction L2. The second linkage 32 is drively connected to the first linkage 31, and the rotation of the first linkage 31 drives the second linkage 32 to move along the first direction L1. The connecting member 33 is fixedly connected to the second linkage 32, and moves synchronously with the movement of the second linkage 32 along the first direction L1.

[0028] The connector 33 includes a first inclined surface 331 and a second inclined surface 332 arranged opposite to each other, located at the end of the connector 33 near the top plate 12. The first inclined surface 331 can be an arc surface or an inclined surface, and / or the second inclined surface 332 can be an arc surface or a plane. The first inclined surface 331 and the second inclined surface 332 are located at the end of the connector 33 away from the bottom plate 11, and the first inclined surface 331 and the second inclined surface 332 form a tapered structure along the first direction L1, that is, the side of the end of the connector 33 near the bottom plate 11 has a larger dimension and the side near the top plate 12 has a smaller dimension. In this embodiment, both the first inclined surface 331 and the second inclined surface 332 are arc surfaces, and both the first inclined surface 331 and the second inclined surface 332 are recessed towards the inside of the connector 33. The first inclined surface 331 is used to cooperate with the first clamping assembly 40, and the second inclined surface 332 is used to cooperate with the second clamping assembly 50. The first inclined surface 331 and the second inclined surface 332 are symmetrically arranged along the first direction L1, which helps to maintain the consistency of movement of the first clamping component 40 and the second clamping component 50.

[0029] The top plate 12 may be provided with a clearance hole 123. When the connector 33 moves toward one side of the top plate 12, the clearance hole 123 can play a clearance role.

[0030] The first linkage 31 includes a first gear 311, which surrounds the rotating shaft 22 and is located on the outer surface of the first linkage 31 away from the rotating shaft 22. The second linkage 32 includes a second gear 321, which is disposed along the first direction L1. The second gear 321 and the first gear 311 mesh with each other. When the first gear 311 rotates with the rotating shaft 22, it drives the second gear 321 to move along the first direction L1, thereby driving the connecting member 33 to move along the first direction L1.

[0031] The moving assembly 30 may further include a bumper 34, which is fixed to one end of the connector 33 near the top plate 12. The bumper 34 is located around the first inclined surface 331 and the second inclined surface 332, and protrudes toward the top plate 12 relative to the connector 33. The bumper 34 is elastic, and when the workpiece 90 is placed on the top plate 12, the bumper 34 can prevent the connector 33 from contacting the workpiece 90 and thus preventing damage to the workpiece 90.

[0032] The first clamping assembly 40 and the second clamping assembly 50 are located on opposite sides of the connector 33. The first clamping assembly 40 and the first inclined surface 331 are slidably connected, and the second clamping assembly 50 and the second inclined surface 332 are slidably connected. The first clamping assembly 40 and the second clamping assembly 50 are both inserted through the top plate 12. The first clamping assembly 40 and the second clamping assembly 50 are used to clamp the workpiece 90. The distance between the first clamping assembly 40 and the second clamping assembly 50 along the third direction L3 can be changed.

[0033] The first clamping assembly 40 includes a first clamping member 41, a first connecting rod 42, and a first roller 43. The first connecting rod 42 passes through the end of the first clamping member 41, and the first roller 43 is sleeved on the first connecting rod 42. The first roller 43 and the first clamping member 41 are rotatably connected. The first connecting rod 42 and the first roller 43 can be fixedly connected or rotatably connected. The first roller 43 is slidably connected to the first inclined surface 331, and the first roller 43 is used to drive the first clamping member 41 to move along the third direction L3.

[0034] The second clamping assembly 50 includes a second clamping member 51, a second connecting rod 52, and a second roller 53. The second connecting rod 52 passes through the end of the second clamping member 51, and the second roller 53 is sleeved on the second connecting rod 52. The second roller 53 and the second clamping member 51 are rotatably connected. The second connecting rod 52 and the second roller 53 can be fixedly connected or rotatably connected. The second roller 53 is slidably connected to the second inclined surface 332, and the second roller 53 is used to drive the second clamping member 51 to move along the third direction L3. The first direction L1, the second direction L2, and the third direction L3 are not coplanar. In this embodiment, the first direction L1, the second direction L2, and the third direction L3 are perpendicular to each other.

[0035] The first clamping member 41 includes a first body portion 411 and a first clamping portion 412. The first body portion 411 is located on the side of the top plate 12 facing the bottom plate 11. The first roller 43 is rotatably connected to the first body portion 411. The first clamping portion 412 is located at the end of the first body portion 411 opposite to the first roller 43. A first through hole 121 is provided on the top plate 12. The first clamping portion 412 passes through the first through hole 121 and protrudes from the top plate 12. The first through hole 121 can also be used to guide the first clamping portion 412 to move along the third direction L3.

[0036] The second clamping member 51 includes a second body portion 511 and a second clamping portion 512. The second body portion 511 is located on the side of the top plate 12 facing the bottom plate 11. The second roller 53 is rotatably connected to the second body portion 511. The second clamping portion 512 is located at the end of the second body portion 511 opposite to the second roller 53. A second through hole 122 is provided on the top plate 12. The second clamping portion 512 passes through the second through hole 122 and protrudes from the top plate 12. The second through hole 122 can also be used to guide the second clamping portion 512 to move along the third direction L3.

[0037] The first damping assembly 60 may include a first fixing member 61 and a first elastic member 62. The first fixing member 61 is fixedly connected to the top plate 12. The first elastic member 62 is located at the end of the first body portion 411 opposite to the first roller 43. The first elastic member 62 elastically connects the first fixing member 61 and the first clamping member 41 along the third direction L3. The first elastic member 62 provides damping and reset functions for the first clamping member 41. The first elastic member 62 may be a spring.

[0038] The second damping assembly 70 may include a second fixing member 71 and a second elastic member 72. The second fixing member 71 is fixedly connected to the top plate 12. The second elastic member 72 is located at the end of the second body portion 511 opposite to the second roller 53. The second elastic member 72 elastically connects the second fixing member 71 and the second clamping member 51 along the third direction L3. The second elastic member 72 provides damping and reset functions for the second clamping member 51. The second elastic member 72 may be a spring.

[0039] The clamping device 100 may further include a guide assembly 80, which may include a slider 81 and a slide rail 82. The slider 81 is fixedly connected to the connector 33, and the slide rail 82 is fixedly connected to the base plate 11. The slider 81 and the slide rail 82 are slidably connected along the first direction L1. The slider 81 and the slide rail 82 guide the movement of the connector 33 along the first direction L1 to prevent the movement direction of the connector 33 from deviating.

[0040] The interaction between the various components of the clamping device 100 will be further explained below through the specific process of clamping the workpiece 90.

[0041] Please see Figure 2 and Figure 3 When the clamping device 100 is not clamping the workpiece 90, each component of the clamping device 100 is in an initial state, wherein the first clamping member 41 and the second clamping member 51 are both located in a first position, and the first clamping part 412 and the second clamping part 512 have a first distance D1 along the third direction L3.

[0042] Please see Figure 4 and Figure 5When the workpiece 90 needs to be clamped in the clamping device 100, the driving member 21 drives the rotating shaft 22 to rotate around the second direction L2. The first linkage member 31 rotates synchronously with the rotating shaft 22. The first gear 311 acts on the second gear 321, driving the second linkage member 32 to move towards the top plate 12 along the first direction L1. The connecting member 33 moves synchronously towards the top plate 12 along the first direction L1. The first inclined surface 331 of the connecting member 33 abuts against the movement of the first roller 43 away from the second clamping member 51 along the third direction L3. The second inclined surface 332 of the connecting member 33 abuts against the movement of the second roller 53 away from the first clamping member 41 along the third direction L3. That is, the first clamping member 41 and the second clamping member 51 move in opposite and relatively far directions. When the first clamping member 41 moves, the first body part 411 presses against the first elastic member 62, and the first elastic member 62 is compressed; when the second clamping member 51 moves, the second body part 511 presses against the second elastic member 72, and the second elastic member 72 is compressed.

[0043] When the distance between the first clamping part 412 and the second clamping part 512 along the third direction L3 is sufficient to place the workpiece 90, the workpiece 90 is placed on the top plate 12 and positioned between the first clamping part 412 and the second clamping part 512. The switch of the drive member 21 is turned off, the cylinder stops providing power, the first elastic member 62 drives the first clamping member 41 to move towards the second clamping member 51, and the second elastic member 72 drives the second clamping member 51 to move towards the first clamping member 41. That is, the first clamping member 41 and the second clamping member 51 move in opposite and relatively close directions until both the first clamping part 412 and the second clamping part 512 abut against the workpiece 90, thereby clamping the workpiece 90. At this time, both the first clamping member 41 and the second clamping member 51 are in the second position, and there is a second distance D2 between the first clamping part 412 and the second clamping part 512 along the third direction L3; the first distance D1 is smaller than the second distance D2.

[0044] When the first clamping member 41 and the second clamping member 51 move in opposite and relatively close directions, the first roller 43 moves synchronously with the first clamping member 41 and abuts against the first inclined surface 331, and the second roller 53 moves synchronously with the second clamping member 51 and abuts against the second inclined surface 332. Under the abutting action of the first roller 43 and the second roller 53, the connecting member 33 moves towards the base plate 11 along the first direction L1. The second linkage member 32 and the connecting member 33 move synchronously towards the base plate 11, and the first linkage member 31 rotates under the action of the second linkage member 32, driving the rotating shaft 22 to rotate synchronously.

[0045] The clamping device 100 provided in this application embodiment, during the clamping of the workpiece 90, first activates the drive member 21 until the distance between the first clamping part 412 and the second clamping part 512 is sufficient to place the workpiece 90. Then, the workpiece 90 is placed on the top plate 12 and positioned between the first clamping part 412 and the second clamping part 512, and the drive member 21 is turned off. The first clamping part 412 and the second clamping part 512 are reset under the action of the first damping component 60 and the second damping component 70, respectively, and abut against the workpiece 90 to clamp it. The above steps are simple and can effectively improve assembly efficiency.

[0046] The overall size of the clamping device 100 can be designed to be small, occupying little space. In a specific embodiment, the overall size of the clamping device 100 can be 295mm*195mm*115mm.

[0047] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the scope of the technical solutions of this application.

Claims

1. A clamping device for clamping a workpiece, characterized in that, include: A support assembly includes a base plate and a top plate, the base plate and the top plate being spaced apart along a first direction, the top plate being used to support the workpiece; A rotating assembly includes a drive member and a rotating shaft, the drive member and the rotating shaft being connected, the drive member being used to drive the rotating shaft to rotate about a second direction; A moving component includes a first linkage, a second linkage, and a connecting member. The first linkage is fixed to the rotating shaft. The second linkage is drivenly connected to the first linkage and is used to move along the first direction. The connecting member is fixedly connected to the second linkage. The connecting member includes a first inclined surface and a second inclined surface arranged opposite to each other. The first inclined surface and the second inclined surface form a tapered structure along the first direction. First clamping component; The second clamping assembly, the first clamping assembly and the second clamping assembly are located on opposite sides of the connector, the first clamping assembly and the first inclined surface are slidably connected, the second clamping assembly and the second inclined surface are slidably connected, the first clamping assembly and the second clamping assembly both pass through and protrude from the top plate, the first clamping assembly and the second clamping assembly are used to clamp the workpiece, and the distance between the first clamping assembly and the second clamping assembly along a third direction can be changed; A first damping component is elastically connected to the top plate and the first clamping component along the third direction; as well as The second damping component is elastically connected to the top plate and the second clamping component along the third direction.

2. The clamping device according to claim 1, characterized in that, The first clamping assembly includes a first clamping member and a first roller, the first roller and the first clamping member being rotatably connected, the first roller and the first inclined surface being slidably connected, and the first roller being used to drive the first clamping member to move along the third direction; and The second clamping assembly includes a second clamping member and a second roller, the second roller and the second clamping member are rotatably connected, the second roller and the second inclined surface are slidably connected, and the second roller is used to drive the second clamping member to move along the third direction.

3. The clamping device according to claim 2, characterized in that, The first damping assembly includes a first fixing member and a first elastic member, the first fixing member being fixedly connected to the top plate, and the first elastic member being elastically connected to the first fixing member and the first clamping member along the third direction; and The second damping component includes a second fixing member and a second elastic member. The second fixing member is fixedly connected to the top plate, and the second elastic member is elastically connected to the second fixing member and the second clamping member along the third direction.

4. The clamping device according to claim 2, characterized in that, The first clamping member includes a first body part and a first clamping part. The first roller and the first body part are rotatably connected. The first clamping part is located at the end of the first body part opposite to the first roller. The first clamping part passes through and protrudes from the top plate. as well as The second clamping member includes a second body portion and a second clamping portion. The second roller and the second body portion are rotatably connected. The second clamping portion is located at one end of the second body portion opposite to the second roller. The second clamping portion passes through and protrudes from the top plate.

5. The clamping device according to claim 4, characterized in that, The first clamping assembly further includes a first connecting rod, which passes through one end of the first body portion opposite to the first clamping portion, and the first roller is sleeved on the first connecting rod; and The second clamping assembly further includes a second connecting rod, which passes through one end of the second body portion away from the second clamping portion, and the second roller is sleeved on the second connecting rod.

6. The clamping device according to claim 2, characterized in that, The first inclined surface is an arc surface or a plane; and / or the second inclined surface is an arc surface or a plane.

7. The clamping device according to any one of claims 1-6, characterized in that, The first linkage includes a first gear, which surrounds the rotating shaft; the second linkage includes a second gear, which is arranged along the first direction, and the second gear and the first gear mesh with each other.

8. The clamping device according to any one of claims 1-6, characterized in that, The clamping device further includes a guide assembly, which includes a slider and a slide rail. The slider and the connector are fixedly connected, and the slide rail and the base plate are fixedly connected. The slider and the slide rail are slidably connected along the first direction.

9. The clamping device according to any one of claims 1-6, characterized in that, The movable component also includes a bumper fixed to one end of the connector near the top plate, the bumper protruding toward the top plate relative to the connector.

10. The clamping device according to any one of claims 1-6, characterized in that, The support assembly also includes a support frame that connects the base plate and the top plate.

Images