Clamping device with overrun protection function

Abstract

The utility model discloses a clamping device with overrun protection, which comprises a base and a top plate, a clamping assembly is arranged on the outer wall of the top of the top plate, a second clamping plate is welded on the outer wall of the top of the top plate, and the clamping assembly comprises a limiting disc, a telescopic rod, a limiting hole, a fixing pin, a rotating handle, a torsion spring, a rotating disc and a clamping plate. Then, a rotating handle can be directly rotated to cancel the matching of a clamping plate and a clamping groove formed in the clamping plate, then a center rod II is rotated to enable a rotating rod I to drive the center rod I to push a telescopic rod, and a clamping plate I at the end part of the telescopic rod is matched with a clamping plate II to realize the limiting butt clamping of the workpiece. According to the carbon brush polishing device, clamping of a carbon brush can be limited, meanwhile, the auxiliary opening assembly is arranged and comprises an L-shaped sliding plate, clamping teeth, a matching head and an inclined groove, when the second center rod rotates, a gear is meshed with the clamping teeth to enable the L-shaped sliding plate to slide, then the collecting box slides outwards under the cooperation of the matching head and the inclined groove, and the polished carbon brush can be stored conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon brushes, in particular to a clamping device with over-limit protection. Background Art

[0002] Nowadays, people's production level is getting higher and higher, and brushed motors are needed in many production and manufacturing processes. As a very common mechanical equipment, brushed motors are often used for power output. The driving force of brushed motors comes from the carbon brushes that pass external current through the carbon brushes and add it to the rotating rotor to realize the rotation of the motor output end. The main material of carbon brushes is graphite. Graphite is a natural element. Its main component is carbon. It is black in color, opaque, has a semi-metallic luster, and has a low hardness. The conductivity of graphite is very good, exceeding many metals and hundreds of times that of non-metals, so it is made into conductive parts such as electrodes and carbon brushes.

[0003] In the manufacturing process of carbon brushes, it is often necessary to grind the carbon brushes to the required shape and size to ensure that they fit tightly to the equipment components during use. The carbon brushes need to be fixed during grinding before grinding. However, the equipment for grinding carbon brushes on the market generally lacks limit protection. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a clamping device with over-limit protection.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A clamping device with over-limit protection comprises a base and a top plate, wherein the top outer wall of the top plate is provided with a clamping assembly, and two clamping plates are welded to the top outer wall of the top plate, wherein the clamping assembly cooperates with the two clamping plates, and wherein the clamping assembly comprises a fixed platform, a telescopic rod, and two center rods, wherein the fixed platform is welded to the top outer wall of the top plate, the telescopic rod is slidably connected to the inner wall of the fixed platform, the bottom outer wall of the telescopic rod is rotatably connected to a limiting plate, the limiting plate and the telescopic rod are both provided with limiting holes, the inner wall of the limiting hole is movably plugged with a fixing pin, and the end of the telescopic rod is welded with a clamping plate 1. The inner wall of the telescopic rod is rotatably connected to the center rod 1, the center rod 2 is rotatably connected to the inner wall of the top plate, the outer side wall of the center rod 2 is welded with a connecting rod 2 and a mounting block, the inner wall of the connecting rod 2 is rotatably connected to a rotating rod 1, the outer side wall of the rotating rod 1 is rotatably connected to the connecting rod 1, the other end of the connecting rod 1 is rotatably connected to the center rod 1, a turntable is welded to the inner wall of the top plate, and the turntable and the center rod 2 rotate relative to each other, the inner wall of the mounting block is rotatably connected to a clamping assembly, a clamping groove is provided on the outer side wall of the turntable, and the clamping assembly cooperates with the clamping groove.

[0007] As a further solution of the utility model: the inner wall of the top plate is slidably connected with a collection box, and the outer wall of the bottom of the top plate is provided with an auxiliary opening component.

[0008] As a further solution of the utility model: the auxiliary opening component cooperates with the collection box, and gears are welded on the second outer side wall of the center rod, and the gears are meshed with the auxiliary opening component.

[0009] As a further solution of the utility model: the clamping assembly includes a turning handle and a second turning rod, the second turning rod is rotatably connected to the inner wall of the mounting block, and the turning handle is welded to the outer side wall of the second turning rod.

[0010] As a further solution of the utility model: the second outer side wall of the rotating rod is sleeved with a torsion spring, and the two ends of the torsion spring are respectively in contact with the outer side wall of the rotating handle and the outer side wall of the mounting block.

[0011] As a further solution of the utility model: a clamping plate is welded on the outer side wall of the throttle, and the clamping plate matches with the clamping slot.

[0012] As a further solution of the utility model: the auxiliary opening component includes a bottom block and an inclined groove, the bottom block is welded to the bottom outer wall of the top plate, the bottom outer wall of the bottom block is slidably connected with an L-shaped slide, and the top outer wall of the L-shaped slide is provided with a latching tooth.

[0013] As a further solution of the utility model: the latch teeth are meshed with the gears, the inclined groove is provided on the bottom outer wall of the L-shaped slide plate, the bottom outer wall of the collection box is rotatably connected with a mating head, and the mating head is mated with the inclined groove.

[0014] Compared with the prior art, the utility model provides a clamping device with over-limit protection, which has the following beneficial effects:

[0015] 1. The utility model, by setting the clamping component as a combination of a limit plate, a telescopic rod, a limit hole, a fixing pin, a turning handle, a torsion spring, a turning plate, and a clamping plate, the limit length of the limit plate is adjusted by the fixing pin during use, and then the turning handle can be directly turned to cancel the cooperation between the clamping plate and the clamping groove opened by the clamping plate, and then the center rod 2 is rotated so that the turning rod 1 drives the center rod 1 to push the telescopic rod, and the clamping plate 1 and the clamping plate 2 at the end of the telescopic rod are used to cooperate to realize the clamping of the workpiece, which is efficient and fast.

[0016] 2. The utility model, by configuring the auxiliary opening component as a combination of an L-shaped slide plate, a latching tooth, a mating head, and an inclined groove, when the center rod 2 rotates, the gear meshing latching tooth causes the L-shaped slide plate to slide, and then the collection box slides outward under the cooperation of the mating head and the inclined groove, so as to facilitate the storage of the polished carbon brush.

[0017] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a clamping device with over-limit protection proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the external structure of the center rod 2 of a clamping device with over-limit protection proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of a clamping assembly of a clamping device with over-limit protection proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of an auxiliary opening component of a clamping device with over-limit protection proposed by the utility model;

[0022] Figure 5 This is a schematic diagram of the bottom structure of a collection box with a clamping device with over-limit protection proposed by the utility model.

[0023] In the figure: 1. base; 2. top plate; 3. fixing platform; 4. limiting hole; 5. limiting plate; 6. fixing pin; 7. telescopic rod; 8. center rod 1; 9. rotating rod 1; 10. connecting rod 1; 11. connecting rod 2; 12. clamping plate 1; 13. turntable; 14. clamping plate 2; 15. turning handle; 16. clamping plate; 17. clamping groove; 18. mounting block; 19. center rod 2; 20. gear; 21. rotating rod 2; 22. torsion spring; 23. clamping tooth; 24. L-shaped slide plate; 25. bottom block; 26. collection box; 27. inclined groove; 28. matching head. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example 1

[0026] A clamping device with over-limit protection, such as Figure 1-Figure 5As shown, it includes a base 1 and a top plate 2. The top outer wall of the top plate 2 is provided with a clamping assembly. The top outer wall of the top plate 2 is welded with a second clamping plate 14. The clamping assembly cooperates with the second clamping plate 14. The clamping assembly includes a fixed platform 3, a telescopic rod 7, and a second center rod 19. The fixed platform 3 is welded to the top outer wall of the top plate 2. The telescopic rod 7 is slidably connected to the inner wall of the fixed platform 3. The bottom outer wall of the telescopic rod 7 is rotatably connected to a limiting plate 5. The limiting plate 5 and the telescopic rod 7 are both provided with a limiting hole 4. The inner wall of the limiting hole 4 is movably plugged with a fixing pin 6. The end of the telescopic rod 7 is welded with a clamping plate 12. The inner wall of the telescopic rod 7 A center rod 18 is rotatably connected, the center rod 2 19 is rotatably connected to the inner wall of the top plate 2, the outer side wall of the center rod 2 19 is welded with a connecting rod 2 11 and a mounting block 18, the inner wall of the connecting rod 2 11 is rotatably connected with a rotating rod 19, the outer side wall of the rotating rod 19 is rotatably connected with a connecting rod 10, the other end of the connecting rod 10 is rotatably connected to the center rod 18, a rotating disk 13 is welded to the inner wall of the top plate 2, and the rotating disk 13 and the center rod 2 19 rotate with each other, the inner wall of the mounting block 18 is rotatably connected with a clamping assembly, the outer side wall of the rotating disk 13 is provided with a clamping groove 17, and the clamping assembly cooperates with the clamping groove 17;

[0027] When in use, the user can rotate the limit plate 5 to adjust the limiting length of the telescopic rod 7 by the limit plate 5, and then insert the fixing pin 6 into the limiting hole 4 to fix it, and then cancel the clamping of the clamping assembly and the clamping slot 17, rotate the center rod 2 19, and the clamping slot 17 outside the center rod 2 19 drives the center rod 1 8 to push the telescopic rod 7 through the rotating rod 1 9, and use the clamping plate 1 12 and the clamping plate 2 14 at the end of the telescopic rod 7 to achieve clamping of the workpiece, the limit plate 5 limits the telescopic rod 7, and then the clamping assembly is reset and clamped with the clamping slot 17, which is convenient for the limit clamping operation.

[0028] The clamping assembly includes a turning handle 15 and a second turning rod 21, wherein the second turning rod 21 is rotatably connected to the inner wall of the mounting block 18, the turning handle 15 is welded to the outer side wall of the second turning rod 21, a torsion spring 22 is sleeved on the outer side wall of the second turning rod 21, and two ends of the torsion spring 22 are respectively in contact with the outer side wall of the turning handle 15 and the outer side wall of the mounting block 18, and a clamping plate 16 is welded to the outer side wall of the turning handle 15, and the clamping plate 16 is matched with the clamping slot 17;

[0029] When in use, the handle 15 can be rotated to disengage the clamping plate 16 from the clamping slot 17, and then the mounting block 18 is driven by the handle 15 to rotate the center rod 19. After the rotation is completed, the handle 15 is reset under the drive of the torsion spring 22, and the clamping plate 16 is clamped in the inside of the clamping slot 17.

[0030] The inner wall of the top plate 2 is slidably connected with a collection box 26, the outer wall of the bottom of the top plate 2 is provided with an auxiliary opening component, the auxiliary opening component cooperates with the collection box 26, and the outer side wall of the center rod 19 is welded with a gear 20, the gear 20 is meshed with the auxiliary opening component;

[0031] When the center rod 2 19 is rotated so that the connecting rod 2 11 drives the connecting rod 1 10 to push the telescopic rod 7 through the center rod 1 8, and the clamping plate 12 and the clamping plate 2 14 clamp the workpiece, the gear 20 outside the center rod 2 19 engages with the auxiliary opening component to make the collection box 26 slide out quickly. After the workpiece is processed, it can be placed in the collection box 26 for storage.

[0032] Working principle: when in use, the user can rotate the limit plate 5 to adjust the limit length of the telescopic rod 7 by the limit plate 5, and then insert the fixing pin 6 into the limit hole 4 to fix it, and then rotate the turning handle 15 to make the clamping plate 16 disengage from the clamping connection with the clamping slot 17, rotate the center rod 2 19, and the clamping slot 17 outside the center rod 2 19 drives the center rod 1 8 to push the telescopic rod 7 through the turning rod 1 9, and the clamping plate 1 12 and the clamping plate 2 14 at the end of the telescopic rod 7 are used to cooperate to clamp the workpiece, the limit plate 5 limits the telescopic rod 7, and then the clamping assembly is reset and clamped with the clamping slot 17, which is convenient for the limit clamping operation. After the rotation is completed, the turning handle 15 is reset under the drive of the torsion spring 22, and when the clamping plate 1 12 and the clamping plate 2 14 clamp the workpiece, the gear 20 outside the center rod 2 19 engages to assist the opening assembly to make the collection box 26 slide out quickly, and after the workpiece processing is completed, it can be placed in the collection box 26 for storage.

[0033] Example 2

[0034] A clamping device with over-limit protection is used to facilitate the storage of the processed workpieces, such as Figure 1-Figure 5 As shown, the auxiliary opening assembly includes a bottom block 25 and an inclined slot 27. The bottom block 25 is welded to the bottom outer wall of the top plate 2. The bottom outer wall of the bottom block 25 is slidably connected with an L-shaped slide plate 24. The top outer wall of the L-shaped slide plate 24 is provided with a latch 23. The latch 23 is meshed with the gear 20. The inclined slot 27 is provided on the bottom outer wall of the L-shaped slide plate 24. The bottom outer wall of the collection box 26 is rotatably connected with a mating head 28. The mating head 28 is mated with the inclined slot 27.

[0035] Working principle: When the gear 20 rotates following the center rod 19, the gear 20 engages with the latching teeth 23 to make the L-shaped slide plate 24 slide horizontally, and then the collection box 26 slides outward under the cooperation of the inclined groove 27 and the matching head 28, and the workpiece is directly placed in the collection box 26. When the gear 20 reverses, the collection box 26 is also reset at the same time.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A clamping device with over-limit protection, comprising a base (1) and a top plate (2), characterized in that: The top outer wall of the top plate (2) is provided with a clamping assembly, and a second clamping plate (14) is welded to the top outer wall of the top plate (2). The clamping assembly cooperates with the second clamping plate (14). The clamping assembly comprises a fixed platform (3), a telescopic rod (7), and a second center rod (19). The fixed platform (3) is welded to the top outer wall of the top plate (2). The telescopic rod (7) is slidably connected to the inner wall of the fixed platform (3). The bottom outer wall of the telescopic rod (7) is rotatably connected to a limiting plate (5). Both the limiting plate (5) and the telescopic rod (7) are provided with a limiting hole (4). The inner wall of the limiting hole (4) is movably plugged with a fixing pin (6). The end of the telescopic rod (7) is welded with a first clamping plate (12). The inner wall of the telescopic rod (7) is rotatably connected to a A center rod (8), the center rod (19) is rotatably connected to the inner wall of the top plate (2), the outer side wall of the center rod (19) is welded with a connecting rod (11) and a mounting block (18), the inner wall of the connecting rod (11) is rotatably connected to a rotating rod (9), the outer side wall of the rotating rod (9) is rotatably connected to a connecting rod (10), the other end of the connecting rod (10) is rotatably connected to the center rod (8), a rotating disk (13) is welded to the inner wall of the top plate (2), and the rotating disk (13) and the center rod (19) are rotatable with each other, the inner wall of the mounting block (18) is rotatably connected with a clamping assembly, the outer side wall of the rotating disk (13) is provided with a clamping groove (17), and the clamping assembly cooperates with the clamping groove (17).

2. A clamping device with over-limit protection according to claim 1, characterized in that: The inner wall of the top plate (2) is slidably connected to a collection box (26), and the outer wall at the bottom of the top plate (2) is provided with an auxiliary opening component.

3. A clamping device with over-limit protection according to claim 2, characterized in that: The auxiliary opening component is matched with the collection box (26), and a gear (20) is welded on the outer side wall of the second center rod (19), and the gear (20) is meshed with the auxiliary opening component.

4. A clamping device with over-limit protection according to claim 3, characterized in that: The clamping assembly comprises a turning handle (15) and a second turning rod (21), wherein the second turning rod (21) is rotatably connected to the inner wall of the mounting block (18), and the turning handle (15) is welded to the outer side wall of the second turning rod (21).

5. A clamping device with over-limit protection according to claim 4, characterized in that: The outer side wall of the second rotating rod (21) is sleeved with a torsion spring (22), and the two ends of the torsion spring (22) respectively abut against the outer side wall of the rotating handle (15) and the outer side wall of the mounting block (18).

6. A clamping device with over-limit protection according to claim 5, characterized in that: A clamping plate (16) is welded to the outer side wall of the turning handle (15), and the clamping plate (16) matches with the clamping slot (17).

7. The clamping device with over-limit protection according to claim 3, characterized in that: The auxiliary opening assembly comprises a bottom block (25) and an inclined groove (27); the bottom block (25) is welded to the bottom outer wall of the top plate (2); the bottom outer wall of the bottom block (25) is slidably connected to an L-shaped slide plate (24); and the top outer wall of the L-shaped slide plate (24) is provided with a latching tooth (23).

8. The clamping device with over-limit protection according to claim 7, characterized in that: The latching teeth (23) mesh with the gear (20), the inclined groove (27) is provided on the bottom outer wall of the L-shaped slide plate (24), the bottom outer wall of the collection box (26) is rotatably connected with a matching head (28), and the matching head (28) matches with the inclined groove (27).

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