Multi-connecting-rod clamp for caliper

Abstract

The utility model relates to a multi-connecting-rod clamp for a caliper. The multi-connecting-rod clamp comprises a bottom plate; the supporting block is used for placing a to-be-machined workpiece; the pressing assembly is used for pressing the workpiece to be machined on the supporting block; the pressing assembly comprises a power source, a first fixing block, a first connecting rod, a second connecting rod, a third connecting rod, a second fixing block and a pressing block, and the power source drives the pressing block to press the workpiece to be machined through linkage of the first connecting rod, the second connecting rod and the third connecting rod. The multi-connecting-rod clamp for the calipers is reasonable in structure, flexible to use and capable of clamping and fixing the calipers of different models and sizes, a connecting rod transmission structure of the first connecting rod, the second connecting rod and the third connecting rod is driven through the power source, and a workpiece to be machined is stably pressed on the supporting block through the pressing block; and the symmetrical pressing assemblies on the two sides can stably and evenly press the caliper to be machined, and the clamping device is suitable for to-be-machined workpieces of various specifications.

Description

Technical Field

[0001] This utility model relates to the field of caliper processing technology, and in particular to a multi-link clamp for calipers. Background Technology

[0002] A vernier caliper is a measuring tool used to measure length, inner and outer diameters, and depth. As a widely used high-precision measuring tool, it is an extension and expansion of the graduated ruler. A vernier caliper consists of a main scale and a sliding vernier scale attached to the main scale. During machining, vernier calipers require grinding on a specialized CNC grinding machine. During grinding, the vernier caliper must be clamped and positioned to ensure machining accuracy.

[0003] The prior art CN216858343U discloses a vernier caliper milling fixture, which includes a placement plate, a transverse cylinder, a clamping block, a longitudinal cylinder, and a fastening block. The vernier caliper is placed on the placement plate, and the output end of the transverse cylinder extends to move the clamping block toward the vernier caliper to fix the bottom of both sides of the vernier caliper. The output end of the longitudinal cylinder extends to move the fastening block downward to fix the top of the edges of both sides of the vernier caliper.

[0004] During normal use, the output end of the transverse cylinder extends and drives the clamping block to move toward the vernier scale. The clamping blocks on both sides of the vernier scale fix the bottom of both sides of the vernier scale. Since the cylinder directly drives the clamping block to abut against the vernier scale, when the clamping block fixes the vernier scale, it is easy to damage the fixing part of the vernier scale, thereby affecting the fixing effect of the clamp on the caliper. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the problem that the existing technology requires fixing the caliper from two directions, which is not only structurally complex but also easily damages the caliper.

[0006] To solve the above technical problems, this utility model provides a multi-link clamp for calipers, comprising: a base plate; a support block mounted on the base plate, which is used to place the workpiece to be processed; and two clamping assemblies, both mounted on the base plate. The support block and the two clamping assemblies are located on the same straight line, with the support block positioned between the two clamping assemblies. The clamping assemblies are used to clamp the workpiece to be processed onto the support block. The clamping assemblies include a power source, a first fixing block, a first connecting rod, a second connecting rod, a third connecting rod, and a second... The invention comprises a fixing block and a clamping block. The power source is mounted on a base plate. Both the first and second fixing blocks are fixedly mounted on the base plate. One end of the first connecting rod is hinged to the first fixing block. The output end of the power source, the other end of the first connecting rod, and one end of the second connecting rod are hinged together. The other end of the second connecting rod is hinged to a third connecting rod. The middle position of the third connecting rod is hinged to the second fixing block. The clamping block is mounted on the end of the third connecting rod furthest from the second connecting rod. The power source drives the clamping block to clamp the workpiece to be processed through the linkage of the first, second, and third connecting rods. This multi-link clamping fixture for calipers has a reasonable structure and flexible use. It can clamp and fix calipers of different models and sizes. The symmetrical clamping components on both sides can stably and evenly clamp the calipers to be processed, playing a positive role in the processing of a large number of calipers and is suitable for widespread use.

[0007] In one embodiment of this utility model, the base plate is provided with a mounting bracket, and the power source is mounted on the mounting bracket.

[0008] In one embodiment of this utility model, a first boss is provided at the end where the first connecting rod is hinged to the second connecting rod.

[0009] In one embodiment of the present invention, the end of the second connecting rod that is hinged to the first connecting rod is provided with a second boss, and the first boss and the second boss are in contact with each other.

[0010] In one embodiment of this utility model, the end face of the first boss opposite to the second connecting rod is set as an arc-shaped surface.

[0011] In one embodiment of this utility model, the end face of the second boss opposite to the first connecting rod is set as an arc-shaped surface.

[0012] In one embodiment of this utility model, a first rotating shaft is provided between the first connecting rod and the first fixed block, a second rotating shaft is provided between the output end of the power source, the first connecting rod and the second connecting rod, a third rotating shaft is provided between the second connecting rod and the third connecting rod, and a fourth rotating shaft is provided between the middle position of the third connecting rod and the second fixed block.

[0013] In one embodiment of the present invention, at least one pressure foot is provided on the end face of the clamping block opposite to the support block, and the pressure foot presses against the workpiece to be processed.

[0014] In one embodiment of this utility model, the support block is arranged in a "π" shape, and a pad is provided at the upper end of the support block, on which the workpiece to be processed is provided.

[0015] In one embodiment of this utility model, the power source is a cylinder.

[0016] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:

[0017] The multi-link clamp for calipers described in this utility model uses a power source to drive the first, second, and third links through a linkage transmission structure. This allows the clamping block to firmly press the workpiece to be processed onto the support block, thus achieving the technical effect of quickly and accurately stabilizing the workpiece in the processing position. Compared with the prior art, it has high positioning efficiency, low labor intensity for workers, is convenient and safe to use, and can effectively ensure the processing quality of the caliper frame. Attached Figure Description

[0018] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the multi-link clamp for calipers in a preferred embodiment of the present invention;

[0020] Figure 2 This is a partial structural diagram of the multi-link clamp for calipers in a preferred embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the clamping assembly in a preferred embodiment of the present invention.

[0022] Explanation of reference numerals in the accompanying drawings: Base plate 1, Mounting support 11, Support block 2, Clamping assembly 3, Power source 31, First fixing block 32, First connecting rod 33, First boss 331, Second connecting rod 34, Second boss 341, Third connecting rod 35, Second fixing block 36, Clamping block 37, First rotating shaft 38, Second rotating shaft 39, Third rotating shaft 310, Fourth rotating shaft 311. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0024] Reference Figure 1 , 2 As shown, the multi-link clamp for calipers of this utility model includes three main parts: a base plate 1, a support block 2, and a clamping assembly 3. The support block 2 is mounted on the base plate 1 and is used to place the workpiece to be processed. Two clamping assemblies 3 are provided, both mounted on the base plate 1. The support block 2 and the two clamping assemblies 3 are located on the same straight line, with the support block 2 positioned between the two clamping assemblies 3. The clamping assemblies 3 are used to clamp the workpiece to be processed onto the support block 2. The workpiece to be processed is placed on the top surface of the support block 2, and the clamping assemblies 3 on both sides of the support block 2 clamp the sides of the workpiece, thereby clamping and fixing the workpiece.

[0025] Reference Figure 3 As shown, the clamping assembly 3 includes a power source 31, a first fixing block 32, a first connecting rod 33, a second connecting rod 34, a third connecting rod 35, a second fixing block 36, and a clamping block 37. The power source 31 is mounted on the base plate 1. The first fixing block 32 and the second fixing block 36 are both fixedly mounted on the base plate 1. One end of the first connecting rod 33 is hinged to the first fixing block 32. The output end of the power source 31, the other end of the first connecting rod 33, and one end of the second connecting rod 34 are hinged to each other. The other end of the second connecting rod 34 is hinged to the third connecting rod 35. The middle position of the third connecting rod 35 is hinged to the second fixing block 36. The clamping block 37 is mounted on the end of the third connecting rod 35 away from the second connecting rod 34. The power source 31 drives the clamping block 37 to clamp the workpiece to be processed through the linkage of the first connecting rod 33, the second connecting rod 34, and the third connecting rod 35.

[0026] In the above structure, the end of the first connecting rod 33 that is hinged to the second connecting rod 34 is provided with a first boss 331. The end of the second connecting rod 34 that is hinged to the first connecting rod 33 is provided with a second boss 341, and the first boss 331 and the second boss 341 are in contact with each other. The end face of the first boss 331 opposite to the second connecting rod 34 is set as an arc surface. The end face of the second boss 341 opposite to the first connecting rod 33 is set as an arc surface. The first boss 331 and the second boss 341 overlap together, and the first boss 331 and the second boss 341 form a limiting structure to prevent the clamping mechanism from overtraveling and failing to reset when there is no workpiece or the workpiece is too small.

[0027] In the above structure, the linkage between the first fixing block 32, the first connecting rod 33, the second connecting rod 34, the third connecting rod 35, and the second fixing block 36 is as follows: a first rotating shaft 38 is provided between the first connecting rod 33 and the first fixing block 32; a second rotating shaft 39 is provided between the output end of the power source 31, the first connecting rod 33, and the second connecting rod 34; a third rotating shaft 310 is provided between the second connecting rod 34 and the third connecting rod 35; and a fourth rotating shaft 311 is provided between the middle position of the third connecting rod 35 and the second fixing block 36.

[0028] The working principle of clamping component 3 is as follows:

[0029] When the power source 31 drives the second rotating shaft 39 to move, the first connecting rod 33 and the second connecting rod 34 move in conjunction with the second rotating shaft 39. The second connecting rod 34 drives the third rotating shaft 310 to move, thereby driving the third connecting rod 35 to rotate around the fourth rotating shaft 311 as the fulcrum (the movement of the third connecting rod 35 is like a seesaw). By extending or retracting the telescopic rod on the power source 31, the third connecting rod 35 rotates in the same direction, thereby enabling the clamping block 37 to clamp or release the workpiece to be processed.

[0030] In the above structure, at least one pressure foot 371 is provided on the end face of the clamping block 37 opposite to the support block 2, and the pressure foot 371 presses against the workpiece to be processed. Preferably, each clamping block 37 is provided with two pressure feet 371. Since there are two clamping components 3, there are a total of four pressure feet 371. The four pressure feet 371 press against the four corners of the workpiece to be processed, thereby fixing the workpiece to be processed.

[0031] In the above structure, the base plate 1 is provided with a mounting bracket 11, and the power source 31 is mounted on the mounting bracket 11.

[0032] In the above structure, the support block 2 is arranged in a "π" shape, and the upper end of the support block 2 is provided with a pad block 21, on which the workpiece to be processed is provided.

[0033] Preferably, the power source 31 is a cylinder.

[0034] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A multi-link clamp for calipers, characterized in that, include: Base plate; A support block is mounted on the base plate and is used to place the workpiece to be processed. Two clamping assemblies are provided, and both clamping assemblies are mounted on the base plate. The support block and the two clamping assemblies are located on the same straight line, and the support block is located between the two clamping assemblies. The clamping assemblies are used to clamp the workpiece to be processed on the support block. The clamping assembly includes a power source, a first fixed block, a first connecting rod, a second connecting rod, a third connecting rod, a second fixed block, and a clamping block. The power source is mounted on a base plate. The first and second fixed blocks are both fixedly mounted on the base plate. One end of the first connecting rod is hinged to the first fixed block. The output end of the power source, the other end of the first connecting rod, and one end of the second connecting rod are hinged together. The other end of the second connecting rod is hinged to the third connecting rod. The middle position of the third connecting rod is hinged to the second fixed block. The clamping block is mounted on the end of the third connecting rod away from the second connecting rod. The power source drives the clamping block to clamp the workpiece to be processed through the linkage of the first, second, and third connecting rods.

2. The multi-link clamp for calipers according to claim 1, characterized in that: The base plate is provided with a mounting bracket, and the power source is mounted on the mounting bracket.

3. The multi-link clamp for calipers according to claim 1, characterized in that: The first connecting rod and the second connecting rod are hinged at one end and a first boss is provided.

4. The multi-link clamp for calipers according to claim 3, characterized in that: The second connecting rod has a second boss at one end that is hinged to the first connecting rod, and the first boss and the second boss are in contact with each other.

5. The multi-link clamp for calipers according to claim 4, characterized in that: The end face of the first boss opposite to the second connecting rod is set as an arc-shaped surface.

6. The multi-link clamp for calipers according to claim 4 or 5, characterized in that: The end face of the second boss opposite to the first connecting rod is set as an arc-shaped surface.

7. The multi-link clamp for calipers according to claim 1, characterized in that: A first rotating shaft is provided between the first connecting rod and the first fixed block; a second rotating shaft is provided between the output end of the power source, the first connecting rod, and the second connecting rod; a third rotating shaft is provided between the second connecting rod and the third connecting rod; and a fourth rotating shaft is provided between the middle position of the third connecting rod and the second fixed block.

8. The multi-link clamp for calipers according to claim 1, characterized in that: At least one pressure foot is provided on the end face of the clamping block opposite to the support block, and the pressure foot presses against the workpiece to be processed.

9. The multi-link clamp for calipers according to claim 1, characterized in that: The support block is arranged in a "π" shape, and a pad is provided at the upper end of the support block, on which the workpiece to be processed is placed.

10. The multi-link clamp for calipers according to claim 1, characterized in that: The power source is a cylinder.

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