Workpiece clamping device

Abstract

The utility model discloses a workpiece clamping device, which belongs to the field of automatic production and comprises a bottom frame, a movable clamping platform is arranged on the bottom frame, a clamping driving device and two clamping blocks are arranged on the clamping platform, and the clamping driving device can drive the two clamping blocks to move relatively. A placing plate is further arranged on the clamping platform, and the placing plate is arranged above the clamping blocks; a clamping structure is arranged above each clamping block, the clamping structures are higher than the top of the containing plate, and the two clamping blocks move relatively so that a workpiece can be clamped or loosened through the clamping structures. By controlling the clamping blocks to stretch out and retract synchronously, centering clamping and positioning can be conducted on ring parts of different specifications and different thicknesses, the whole clamping platform can stretch out of an automatic production line to be inspected, and follow-up automatic inspection and machining of workpieces are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of automated production, in particular to a workpiece clamping device. Background Art

[0002] When existing ring parts are inspected after processing, there is a lack of centering clamping and extendable and retractable functions for the workpiece, which cannot ensure that the workpiece is effectively fixed in the correct position during inspection, and cannot be extended outside the automated production line to ensure safety during inspection.

[0003] Since the existing ring parts inspection table can only be used to place workpieces, it is very troublesome to position and fix the ring parts during inspection. In addition, the inspection position of the original inspection table is fixed, which is not conducive to the convenience of inspection operation and is even more detrimental to the construction of automated production lines.

[0004] In view of the above problems existing in the prior art, the present invention combines many years of design and use experience in related fields with strong professional knowledge to design and manufacture a workpiece clamping device to overcome the above defects. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a workpiece clamping device, which can center, clamp and position ring parts of different specifications and thicknesses by controlling the clamping blocks to extend and retract synchronously, and can extend the clamping platform as a whole outside the automated production line for inspection, so as to facilitate the subsequent automated inspection and processing of the workpiece.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a workpiece clamping device, comprising a base frame, a movable clamping platform is provided on the base frame, a clamping drive device and two clamping blocks are provided on the clamping platform, and the clamping drive device can drive the two clamping blocks to move relative to each other;

[0007] The clamping platform also supports a placement plate, which is arranged above the clamping block;

[0008] A clamping structure is provided above each clamping block, and the clamping structure is higher than the top of the placement plate. The relative movement of the two clamping blocks can clamp or release the workpiece through the clamping structure.

[0009] Preferably, the clamping structure is configured as two vertical clamping rods, the two vertical clamping rods on the clamping block are respectively located on both sides of the placement plate, the connecting line of the two vertical clamping rods on the clamping block is perpendicular to the moving direction of the clamping block, and the tops of the vertical clamping rods are higher than the top of the placement plate.

[0010] Preferably, two first guide rails are provided on the base frame, and a slider is provided at the bottom of the clamping platform to cooperate with the first guide rails;

[0011] The base frame is also provided with a linear drive device, and the linear drive device can drive the clamping platform to move along the first guide rail.

[0012] Preferably, two second guide rails are provided on the clamping platform, and a sliding block is provided at the bottom of each clamping block to cooperate with the second guide rails.

[0013] Preferably, a central rotating shaft is provided on the clamping platform, the central rotating shaft is located between the two clamping blocks, an intermediate connecting plate is rotatably connected to the central rotating shaft, and the central rotating shaft is located at the center of the intermediate connecting plate;

[0014] The two ends of the intermediate connecting plate are respectively hinged to the end of a transmission connecting plate, and the other end of the transmission connecting plate is hinged to the clamping block;

[0015] And / or, the clamping drive device is arranged on the back of a clamping block, and the clamping drive device can drive the clamping block to move, and the moving clamping block drives another clamping block to move away from or closer to the center through the intermediate connecting plate and the transmission connecting plate.

[0016] Preferably, the intermediate connecting plate and the transmission connecting plate are both lower than the bottom surface of the placement plate.

[0017] Preferably, the vertical clamping rod is located on the side of the clamping block away from the central rotation axis;

[0018] A nylon sleeve is sleeved on the vertical clamping rod.

[0019] Preferably, the clamping block connected to the clamping drive device is set as an active clamping block, and the other clamping block is set as a driven clamping block;

[0020] A shock-absorbing bracket is provided on the clamping platform at the back of the driven clamping block, a shock-absorbing block is provided on the shock-absorbing bracket, and a limit block is provided at the back of the driven clamping block. The driven clamping block can limit the position of the driven clamping block by the contact between the limit block and the shock-absorbing block.

[0021] Preferably, a buffer is provided on the shock-absorbing bracket, and an end of the buffer is connected to a limit block.

[0022] Preferably, a surrounding plate is provided around the top of the clamping platform.

[0023] The utility model is beneficial in that:

[0024] 1. The utility model can clamp and center ring parts of different thicknesses and sizes, has strong versatility, and the entire clamping platform can be extended and retracted, making it convenient for the clamping platform to be extended outside the automated production line for inspection.

[0025] 2. The utility model utilizes a rotating middle connecting plate to drive the two clamping blocks to move respectively through the transmission connecting plates at both ends, so as to realize the synchronous relative or opposite movement of the two clamping blocks. The ring parts to be processed only need to be placed in a position close to the central rotating shaft, and the friction caused by the clamping blocks pushing and driving the ring parts to move and affecting the surface of the ring parts can be avoided as much as possible.

[0026] 3. The placement plate of the utility model is arranged above the clamping block, and the two vertical clamping rods on the clamping block are used to clamp the ring parts, which not only increases the clamping space but also facilitates the placement of the ring parts to be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a workpiece clamping device with a ring-type part placed on a placement plate;

[0028] Figure 2 A top view of a workpiece clamping device with a ring-like part placed on a placement plate;

[0029] Figure 3 A cross-sectional view of a workpiece clamping device with a ring-like part placed on a placement plate;

[0030] Figure 4 A top view of a workpiece clamping device with the placement plate removed.

[0031] In the figure: 1-base frame, 2-clamping platform, 3-second guide rail, 4-placing plate, 5-clamping block, 6-nylon sleeve, 7-vertical clamping rod, 8-clamping drive device, 9-transmission connecting plate, 10-middle connecting plate, 11-center shaft, 12-shock-absorbing bracket, 13-buffer, 14-shock-absorbing block, 15-limiting block, 16-linear drive device, 17-adjusting foot cup, 18-chemical anchor bolt. DETAILED DESCRIPTION

[0032] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0033] like Figures 1 to 4As shown, a workpiece clamping device includes a base frame 1, on which a movable clamping platform 2 is provided. Specifically, two first guide rails are provided on the base frame 1, and a slider is provided at the bottom of the clamping platform 2 to cooperate with the first guide rail. A linear drive device 16 is also provided on the base frame 1, and the linear drive device 16 can drive the clamping platform 2 to move along the first guide rail. Of course, the utility model is not limited to the specific structure for driving the clamping platform 2 to move, as long as it can drive the clamping platform 2 to move linearly, it can utilize a gear rack structure, a screw sliding sleeve structure, a cylinder, an oil cylinder, an electric cylinder, etc., which will not be described in detail here.

[0034] The utility model provides a clamping drive device 8 and two clamping blocks 5 on the clamping platform 2, and the clamping drive device 8 can drive the two clamping blocks 5 to move relative to each other. The clamping platform 2 also supports a placement plate 4, and the placement plate 4 is arranged above the clamping blocks 5. The ring parts to be processed are placed on the placement plate 4. In order to achieve the clamping of the ring parts on the placement plate 4, a clamping structure is provided above each clamping block 5, and the clamping structure is higher than the top of the placement plate 4. The relative movement of the two clamping blocks 5 can clamp or release the workpiece through the clamping structure.

[0035] Specifically, the clamping structure is configured as two vertical clamping rods 7. The two vertical clamping rods 7 on the clamping block 5 are respectively located on both sides of the placement plate 4. The vertical clamping rods 7 are preferably located on the side of the clamping block 5 away from the center rotation axis 11. The connecting line of the two vertical clamping rods 7 on the clamping block 5 is perpendicular to the moving direction of the clamping block 5, and the tops of the vertical clamping rods 7 are higher than the top of the placement plate 4.

[0036] By utilizing the two vertical clamping rods 7 on the two clamping blocks 5 to clamp the ring-like parts, not only the clamping space is increased, but also the placement plate 4 facilitates the placement of the ring-like parts to be processed. The vertical clamping rods 7 are preferably sleeved with nylon sleeves 6, which can reduce the clamping marks and scratches on the ring-like parts while clamping the ring-like parts.

[0037] In order to meet the movement of the two clamping blocks 5, two second guide rails 3 are provided on the clamping platform 2, and a slider is provided at the bottom of each clamping block 5 to cooperate with the second guide rail 3. A central rotating shaft 11 is provided on the clamping platform 2, and the central rotating shaft 11 is located between the two clamping blocks 5. An intermediate connecting plate 10 is rotatably connected to the central rotating shaft 11, and the central rotating shaft 11 is located at the center position of the intermediate connecting plate 10. Both ends of the intermediate connecting plate 10 are respectively hinged to the end of a transmission connecting plate 9, and the other end of the transmission connecting plate 9 is hinged to the clamping block 5.

[0038] The utility model utilizes the rotating middle connecting plate 10 to drive the two clamping blocks 5 to move respectively through the transmission connecting plates 9 at both ends, so as to realize the synchronous relative or opposite movement of the two clamping blocks 5. The ring-like parts to be processed only need to be placed at a position close to the central rotating shaft 11, and the friction caused by the clamping blocks 5 pushing and driving the ring-like parts to move and affecting the surface of the ring-like parts is avoided as much as possible.

[0039] And / or, the clamping drive device 8 is arranged on the back of a clamping block 5, and the clamping drive device 8 is preferably a cylinder. The clamping drive device 8 can drive the clamping block 5 to move, and the moving clamping block 5 drives another clamping block 5 to move away from or closer to the center through the intermediate connecting plate 10 and the transmission connecting plate 9.

[0040] The intermediate connecting plate 10 and the transmission connecting plate 9 of the utility model are both lower than the bottom surface of the placement plate 4, so that the intermediate connecting plate 10 and the transmission connecting plate 9 will not touch the placement plate 4 during the movement process, thereby avoiding the displacement of the ring parts and being more conducive to ensuring the clamping accuracy.

[0041] The clamping block 5 connected to the clamping drive device 8 is set as an active clamping block, and the other clamping block 5 is set as a driven clamping block. A shock-absorbing bracket 12 is provided on the clamping platform 2 on the back of the driven clamping block, and a shock-absorbing block 14 is provided on the shock-absorbing bracket 12. A limit block 15 is provided on the back of the driven clamping block. The driven clamping block can limit the position of the driven clamping block by the contact between the limit block 15 and the shock-absorbing block 14. A buffer 13 is provided on the shock-absorbing bracket 12, and the end of the buffer 13 is connected to the limit block 15. The utility model can reduce the impact and vibration of the action process through the above structure.

[0042] A surrounding plate is arranged around the clamping platform 2 to form an oil and liquid receiving tray to prevent cutting fluid from spilling onto the bottom surface when processing ring parts. In addition, an adjustable foot cup 17 is preferably installed at the bottom of the base frame 1 to reduce the requirement for the flatness of the bottom surface. After the position is determined, the base frame 1 can be effectively fixed and connected to the ground with a chemical anchor bolt 18.

[0043] The specific working process of this utility model:

[0044] For different ring parts, the manipulator grabs the ring parts onto the placement plate 4, and the clamping drive device 8 drives the clamping block 5 to move. The moving clamping block 5 drives another clamping block 5 to center and clamp through the intermediate connecting plate 10 and the transmission connecting plate 9. The vertical clamping rods 7 on the two clamping blocks 5 can center and clamp the ring parts. The vertical clamping rods 7 are covered with nylon sleeves 6, which can reduce the clamping marks and scratches on the ring parts while clamping the ring parts.

[0045] After the ring-like parts are clamped, the clamping platform 2 is driven by the linear drive device 16 to move along the first guide rail, so that the clamping platform 2 and the ring-like parts are extended out of the automated production line as a whole for inspection.

[0046] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.

Claims

1. A workpiece clamping device, characterized in that: It comprises a base frame (1), a movable clamping platform (2) is provided on the base frame (1), a clamping driving device (8) and two clamping blocks (5) are provided on the clamping platform (2), and the clamping driving device (8) can drive the two clamping blocks (5) to move relative to each other; The clamping platform (2) also supports a placement plate (4), and the placement plate (4) is arranged above the clamping block (5); A clamping structure is provided above each clamping block (5), and the clamping structure is higher than the top of the placement plate (4). The relative movement of the two clamping blocks (5) can clamp or release the workpiece through the clamping structure.

2. A workpiece clamping device according to claim 1, characterized in that: The clamping structure is configured as two vertical clamping rods (7), the two vertical clamping rods (7) on the clamping block (5) are respectively located on both sides of the placement plate (4), the connecting line of the two vertical clamping rods (7) on the clamping block (5) is perpendicular to the moving direction of the clamping block (5), and the tops of the vertical clamping rods (7) are higher than the top of the placement plate (4).

3. A workpiece clamping device according to claim 1, characterized in that: The base frame (1) is provided with two first guide rails, and the bottom of the clamping platform (2) is provided with a slide block that cooperates with the first guide rails; The base frame (1) is also provided with a linear drive device (16), and the linear drive device (16) can drive the clamping platform (2) to move along the first guide rail.

4. A workpiece clamping device according to claim 1, characterized in that: Two second guide rails (3) are provided on the clamping platform (2), and a sliding block is provided at the bottom of each clamping block (5) to cooperate with the second guide rail (3).

5. A workpiece clamping device according to claim 2, characterized in that: The clamping platform (2) is provided with a central rotating shaft (11), the central rotating shaft (11) is located between the two clamping blocks (5), an intermediate connecting plate (10) is rotatably connected to the central rotating shaft (11), and the central rotating shaft (11) is located at the center of the intermediate connecting plate (10); The two ends of the intermediate connecting plate (10) are respectively hinged to the end of a transmission connecting plate (9), and the other end of the transmission connecting plate (9) is hinged to the clamping block (5); And / or, the clamping drive device (8) is arranged on the back of a clamping block (5), and the clamping drive device (8) can drive the clamping block (5) to move, and the moving clamping block (5) drives another clamping block (5) to move away from or closer to the center through the intermediate connecting plate (10) and the transmission connecting plate (9).

6. A workpiece clamping device according to claim 5, characterized in that: The intermediate connecting plate (10) and the transmission connecting plate (9) are both lower than the bottom surface of the placement plate (4).

7. A workpiece clamping device according to claim 5, characterized in that: The vertical clamping rod (7) is located on a side of the clamping block (5) away from the central rotation axis (11); A nylon sleeve (6) is sleeved on the vertical clamping rod (7).

8. A workpiece clamping device according to claim 1, characterized in that: The clamping block (5) connected to the clamping drive device (8) is set as an active clamping block, and the other clamping block (5) is set as a driven clamping block; A shock absorbing bracket (12) is provided on the clamping platform (2) at the back of the driven clamping block, a shock absorbing block (14) is provided on the shock absorbing bracket (12), and a limit block (15) is provided on the back of the driven clamping block. The driven clamping block can limit the position of the driven clamping block by the limit block (15) contacting the shock absorbing block (14).

9. A workpiece clamping device according to claim 8, characterized in that: The shock-absorbing bracket (12) is provided with a buffer (13), and the end of the buffer (13) is connected to a limit block (15).

10. A workpiece clamping device according to claim 1, characterized in that: A surrounding plate is arranged around the top of the clamping platform (2).

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