Connecting rod pressing mechanism

Abstract

The utility model relates to the technical field of machining, in particular to a connecting rod pressing mechanism which comprises a locking seat, a first connecting rod, a second connecting rod, a supporting seat, a third connecting rod, an arc-shaped connecting rod and a pressing block arranged at the end of the arc-shaped connecting rod. A rotating base is arranged at the upper end of the supporting seat, the lower end of the arc-shaped connecting rod is rotationally arranged on the rotating base, the third connecting rod is rotationally arranged in the middle of the supporting seat, and the two ends of the third connecting rod are rotationally connected with the second connecting rod and the arc-shaped connecting rod correspondingly. By means of the design of the multiple connecting rods, the device is suitable for being used in the space-limited environment, space is saved, operation is easy and convenient, stable and effective pressing force can be provided, and stability and reliability of workpieces in the machining or assembling process are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and specifically to a connecting rod clamping mechanism. Background Technology

[0002] In the mechanical manufacturing process, fixtures are often used to fix the workpiece in place so that it can be used for construction or inspection.

[0003] Patent CN203062586U discloses a linkage clamping device, including a clamping body, jaws for clamping workpieces, a connecting rod, an end plate, and an adjusting rod as a force-applying device. The jaws are hinged to the clamping body, and the driven end of the jaws clamps the workpiece. The connecting rod is slidably connected to the clamping body, with one end abutting against the driving end of the jaws and the other end abutting against the end plate. The adjusting rod passes through the end plate and is threadedly connected to the clamping body, and has an adjusting handle. In operation, tightening the adjusting rod with the adjusting handle pushes the connecting rod, causing the jaws to clamp the workpiece. Loosening the adjusting rod retracts the end plate and the connecting rod, releasing the workpiece without external force. This invention allows for fine-tuning of the jaws by rotating the thread, increasing workpiece accuracy.

[0004] The aforementioned link clamping device has the following problems: it is not suitable for use in space-constrained environments, such as automated assembly lines or compact mechanical structures. Utility Model Content

[0005] This utility model provides a connecting rod clamping mechanism to solve the problems of the prior art.

[0006] The objective of this utility model can be achieved through the following technical solution: a linkage clamping mechanism, comprising: a locking seat, a first linkage, a second linkage, a support seat, a third linkage, an arc-shaped linkage, and a pressure block disposed at the end of the arc-shaped linkage. The two ends of the first linkage are rotatably connected to the locking seat and the second linkage, respectively. A rotating base is disposed at the upper end of the support seat. The lower end of the arc-shaped linkage is rotatably disposed on the rotating base. The third linkage is rotatably disposed in the middle of the support seat and its two ends are rotatably connected to the second linkage and the arc-shaped linkage, respectively.

[0007] In a further improvement, the third link includes a rotating shaft rotatably mounted on the support base, a first drive rod and a second drive rod fixedly mounted at both ends of the rotating shaft, and a third drive rod rotatably mounted at the end of the second drive rod. The first drive rod is rotatably connected to the second link, and the third drive rod is rotatably connected to the lower end of the arc-shaped link.

[0008] In a further improvement, a rotating groove is provided through the middle of the lower end of the arc-shaped connecting rod, and the third drive rod is rotatably disposed within the rotating groove.

[0009] In a further improvement, a rotating through hole is provided on the support base, the rotating shaft is rotatably disposed in the rotating through hole and square locking pins are provided at both ends, and square locking grooves are provided on both the first drive rod and the second drive rod. Expansion joints are provided on the side ends of the square locking grooves, and threaded holes are provided on both sides of the expansion joints.

[0010] In a further improvement, the locking seat includes a base, a clamping handle rotatably disposed at the end of the base, and a transition member rotatably connected to the clamping handle, the other end of the transition member being rotatably connected to the first connecting rod.

[0011] Compared with the prior art, this utility model has the following beneficial effects: During operation, the movement of the locking seat will drive the second link through the first link, and then transmit power through the third link, causing the arc-shaped link to rotate around the rotating base. The rotation of the arc-shaped link causes the pressure block at its end to drop or rise, thereby achieving the clamping or release of the workpiece. Through the multi-link design, the equipment is suitable for use in space-constrained environments, such as automated assembly lines or compact mechanical structures. It not only saves space but also simplifies operation and provides stable and effective clamping force, ensuring the stability and reliability of the workpiece during processing or assembly. By adjusting the length and angle of the link, it can also adapt to workpieces of different sizes and weights, increasing the flexibility and applicability of the mechanism. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0014] Figure 3 This is a partial exploded view of the present invention;

[0015] Figure 4 This is a partial exploded view of the support base and the third connecting rod of this utility model.

[0016] In the diagram, 1. Locking seat; 11. Base; 12. Clamping handle; 13. Transition piece; 2. First connecting rod; 3. Second connecting rod; 4. Support seat; 41. Rotating base; 42. Rotating through hole; 5. Third connecting rod; 51. Rotating shaft; 52. First drive rod; 53. Second drive rod; 54. Third drive rod; 6. Arc-shaped connecting rod; 61. Pressure block; 62. Rotating groove; 71. Square snap-fit ​​groove; 72. Expansion joint; 73. Threaded hole. Detailed Implementation

[0017] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The following describes the embodiments and appendices. Figures 1-4 The technical solution of this utility model will be further described below.

[0020] Example 1

[0021] A linkage clamping mechanism includes: a locking seat 1, a first link 2, a second link 3, a support seat 4, a third link 5, an arc-shaped link 6, and a pressure block 61 disposed at the end of the arc-shaped link 6. The two ends of the first link 2 are rotatably connected to the locking seat 1 and the second link 3, respectively. The upper end of the support seat 4 is provided with a rotating base 41. The lower end of the arc-shaped link 6 is rotatably disposed on the rotating base 41. The third link 5 is rotatably disposed in the middle of the support seat 4 and its two ends are rotatably connected to the second link 3 and the arc-shaped link 6, respectively.

[0022] like Figures 1-4 As shown, during operation, the movement of the locking seat 1 will drive the second link 3 through the first link 2, and then transmit power through the third link 5, causing the arc-shaped link 6 to rotate around the rotating base 41. The rotation of the arc-shaped link 6 causes the pressure block 61 at its end to drop or rise, thereby achieving the pressing or releasing of the workpiece.

[0023] This invention, through its multi-link design, makes the equipment suitable for use in space-constrained environments, such as automated assembly lines or compact mechanical structures. It not only saves space but also simplifies operation, providing stable and effective clamping force to ensure the stability and reliability of workpieces during processing or assembly. By adjusting the length and angle of the links, it can also accommodate workpieces of different sizes and weights, increasing the flexibility and applicability of the mechanism.

[0024] As a further preferred embodiment, the third connecting rod 5 includes a rotating shaft 51 rotatably mounted on the support base 4, a first driving rod 52 and a second driving rod 53 fixedly mounted at both ends of the rotating shaft 51, and a third driving rod 54 rotatably mounted at the end of the second driving rod 53. The first driving rod 52 is rotatably connected to the second connecting rod 3, and the third driving rod 54 is rotatably connected to the lower end of the arc-shaped connecting rod 6.

[0025] Specifically, when the locking seat 1 is operated, the movement of the first link 2 is transmitted to the second drive rod 53 through the second link 3 and the first drive rod 52, and then to the arc-shaped link 6 through the third drive rod 54 at the end of the second drive rod 53. This not only improves the efficiency of force transmission, but also increases the stability and operational flexibility of the mechanism, ensuring the stability and reliability of the workpiece during processing or assembly. With the setting of the rotating shaft 51, the third link 5 can rotate freely on the support seat 4, enabling the entire mechanism to adapt to different working spaces and operating angles, further saving space and improving the convenience of operation.

[0026] As a further preferred embodiment, a rotating groove 62 is provided through the middle of the lower end of the arc-shaped connecting rod 6, and the third driving rod 54 is rotatably disposed in the rotating groove 62.

[0027] As a further preferred embodiment, the support base 4 is provided with a through-hole 42, the rotating shaft 51 is rotatably disposed in the through-hole 42 and square locking pins 511 are provided at both ends, the first drive rod 52 and the second drive rod 53 are both provided with square locking grooves 71, the side ends of the square locking grooves 71 are provided with expansion joints 72, and the two sides of the expansion joints 72 are provided with threaded holes 73.

[0028] Specifically, such as Figure 4 As shown, the first drive rod 52 and the second drive rod 53 are snapped onto the square snap-fit ​​pin 511 of the rotating shaft 51 through the square snap-fit ​​groove 71, which prevents relative displacement between the two during use. At the same time, the expansion joint 72 and the threaded hole 73 allow the tightness of the drive rod to be adjusted by screws, thereby ensuring the stability of the connection and facilitating the maintenance and disassembly of the equipment.

[0029] As a further preferred embodiment, the locking seat 1 includes a base 11, a pressing handle 12 rotatably disposed at the end of the base 11, and a transition member 13 rotatably connected to the pressing handle 12, the other end of the transition member 13 being rotatably connected to the first connecting rod 2.

[0030] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A linkage clamping mechanism, characterized in that, include: The components include a locking seat (1), a first connecting rod (2), a second connecting rod (3), a support seat (4), a third connecting rod (5), an arc-shaped connecting rod (6), and a pressure block (61) disposed at the end of the arc-shaped connecting rod (6). The two ends of the first connecting rod (2) are rotatably connected to the locking seat (1) and the second connecting rod (3), respectively. The upper end of the support seat (4) is provided with a rotating base (41). The lower end of the arc-shaped connecting rod (6) is rotatably disposed on the rotating base (41). The third connecting rod (5) is rotatably disposed in the middle of the support seat (4) and its two ends are rotatably connected to the second connecting rod (3) and the arc-shaped connecting rod (6), respectively.

2. The linkage clamping mechanism according to claim 1, characterized in that, The third link (5) includes a rotating shaft (51) rotatably mounted on the support base (4), a first drive rod (52) and a second drive rod (53) fixedly mounted at both ends of the rotating shaft (51), and a third drive rod (54) rotatably mounted at the end of the second drive rod (53). The first drive rod (52) is rotatably connected to the second link (3), and the third drive rod (54) is rotatably connected to the lower end of the arc-shaped link (6).

3. The linkage clamping mechanism according to claim 2, characterized in that, The lower middle part of the arc-shaped connecting rod (6) is provided with a rotating groove (62), and the third driving rod (54) is rotatably disposed in the rotating groove (62).

4. The linkage clamping mechanism according to claim 2, characterized in that, The support base (4) is provided with a through-hole (42), the rotating shaft (51) is rotatably disposed in the through-hole (42) and square snap-fit ​​pins (511) are provided at both ends, the first drive rod (52) and the second drive rod (53) are both provided with square snap-fit ​​grooves (71), the side ends of the square snap-fit ​​grooves (71) are provided with expansion joints (72), and the two sides of the expansion joints (72) are provided with threaded holes (73).

5. A linkage clamping mechanism according to claim 1, characterized in that, The locking seat (1) includes a base (11), a pressing handle (12) rotatably disposed at the end of the base (11), and a transition piece (13) rotatably connected to the pressing handle (12). The other end of the transition piece (13) is rotatably connected to the first connecting rod (2).

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