Double-insurance pneumatic fatigue clamp controller

Abstract

The utility model discloses a double-insurance pneumatic fatigue clamp controller, relates to the technical field of pneumatic fatigue clamps, and aims to solve the problems that a current traditional pneumatic clamp is inconvenient to realize self-locking insurance, the clamp is possibly opened accidentally in a testing process, so that materials slip off, and the testing efficiency is high. The material durability fatigue test fixture comprises an L-shaped fixture shell of which the top is detachably provided with an upper cover body, one side of the L-shaped fixture shell is detachably provided with an air cylinder, and a rod piece of the air cylinder extends out of the L-shaped fixture shell and is fixedly connected with a triangular push block; clamping assemblies used for clamping materials are symmetrically and movably installed in the L-shaped clamp shell, a connecting plate is arranged at the top of the triangular push block, a limiting groove is formed in the middle of the interior of the upper cover body, the top of the connecting plate extends and penetrates out of the limiting groove, and a U-shaped push plate is arranged on the side face of the end, extending and penetrating out of the limiting groove, of the connecting plate. The self-locking device has the advantage that self-locking safety is achieved after materials are clamped.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic fatigue clamps, and more specifically to a double-safety pneumatic fatigue clamp controller. Background Art

[0002] Pneumatic fatigue fixtures are usually used to describe special fixture control systems used in material fatigue testing or mechanical component durability testing. The main function of this system is to control the action of the fixture by pneumatic means (using compressed air or gas pressure), thereby ensuring that the tested sample (such as material, component, etc.) can be stably and reliably fixed on the fixture during the test and withstand the expected cyclic load or stress.

[0003] At present, when fatigue testing is performed on material durability, it is necessary to use a clamp to clamp both ends of the material to ensure stability during the fatigue test. Existing fatigue test clamps are generally pneumatic clamps, which drive the clamp to move through a cylinder. However, traditional pneumatic clamps are not easy to achieve self-locking safety. During the test, the clamp may accidentally open and cause the material to slip, affecting the smooth progress of the material durability fatigue test. In view of this, we propose a double-safety pneumatic fatigue clamp controller. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide a double-safety pneumatic fatigue clamp controller to solve the technical problem that the current traditional pneumatic clamp is not convenient to realize self-locking safety, and the clamp may accidentally open during the test, causing material slippage, affecting the smooth progress of material durability fatigue testing.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a double-insurance pneumatic fatigue clamp controller, comprising an L-shaped clamp shell with an upper cover body detachably mounted on the top;

[0006] A cylinder is detachably mounted on one side of the L-shaped clamp shell, a rod of the cylinder extends through the L-shaped clamp shell and is fixedly connected with a triangular push block, a clamping assembly for clamping materials is symmetrically and movably mounted in the L-shaped clamp shell, a connecting plate is arranged on the top structure of the triangular push block, a limiting groove is centrally provided in the upper cover body, the top of the connecting plate extends through the limiting groove, and a U-shaped push plate is arranged on the side structure of one end of the connecting plate extending through the limiting groove, and an anti-slip assembly is symmetrically arranged on the top of the upper cover body;

[0007] The anti-slip assembly includes a ratchet disc rotatably mounted on the upper end surface of the upper cover body, a ratchet tooth for movably engaging with the ratchet disc and achieving a self-locking effect on the ratchet disc rotatably mounted on one side of the upper end surface of the upper cover body, a convex shaft is arranged on the top structure of the ratchet tooth, and a torsion spring is arranged at the rotation connection between the ratchet tooth and the upper cover body, a connecting rod is arranged on the outer edge surface of the convex shaft, and one end of the U-shaped push plate away from the connecting plate movably abuts against the connecting rod;

[0008] The anti-slip assembly and the clamping assembly are fixedly connected with a linkage structure for achieving a linkage effect.

[0009] The utility model designs the structure of the anti-slip assembly, and when the triangular push block is pushed out by starting the cylinder and drives the clamping assembly to expand and open, the connecting plate drives the U-shaped push plate to move with the triangular push block, and applies a thrust deviating from the axis to the connecting rod through the U-shaped push plate, thereby forcing the ratchet teeth to deflect and disengage from the ratchet disk, so that the clamping assembly can expand and open smoothly. When clamping the material, the cylinder controls the triangular push block to retract, so that the U-shaped push plate can be disengaged from the connecting rod, and under the action of the torsion spring, the ratchet teeth are reset and meshed with the ratchet disk, so that the effect of self-locking insurance after the material is clamped is achieved, which solves the problem that traditional pneumatic clamps are not convenient for realizing self-locking insurance, and the problem that the clamp may be accidentally opened during the test process, causing the material to slip, affecting the smooth progress of the material durability fatigue test work.

[0010] Preferably, the clamping assembly comprises a movable wall with a mounting hole formed therein, one end of the movable wall is provided with a connecting arm, and one end of the connecting arm away from the movable wall is connected with a clamping claw for clamping the material.

[0011] Preferably, a countersunk hole is provided on one side of the movable wall, a spring is fixedly arranged in the countersunk hole for achieving a self-locking clamping effect on the material by means of elastic force, and the linkage structure is fixedly installed in the installation hole.

[0012] Preferably, the linkage structure includes a fixed shaft fixedly installed in the mounting hole, a connecting shaft is centrally constructed at the top end of the fixed shaft, the top end of the connecting shaft extends through the upper cover body and is fixedly connected to the connecting shaft in the ratchet disk, and a rotating shaft is centrally constructed at the bottom end of the fixed shaft, and the rotating shaft can be rotatably installed in the L-shaped clamp shell.

[0013] Preferably, a boss is symmetrically arranged on one side of the upper end surface of the L-shaped clamp shell, a threaded hole is provided on the top of the boss, and a positioning shaft is arranged on the top of the boss.

[0014] Preferably, the upper end surface of the upper cover body is provided with a fixing bolt 1 whose end can be screwed into the threaded hole, and the upper cover body is provided with a positioning groove adapted for positioning the positioning shaft, and the cylinder is provided with a fixing bolt 2 whose end can be screwed into the L-shaped clamp shell.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model designs the structure of the anti-slip assembly. When the triangular push block is pushed out by starting the cylinder and drives the clamping assembly to expand and open, the connecting plate drives the U-shaped push plate to move with the triangular push block, and applies a thrust deviating from the axis to the connecting rod through the U-shaped push plate, thereby forcing the ratchet teeth to deflect and disengage from the ratchet disk, so that the clamping assembly can expand and open smoothly. When clamping the material, the cylinder controls the triangular push block to retract, so that the U-shaped push plate can be disengaged from the connecting rod, and under the action of the torsion spring, the ratchet teeth are reset and meshed with the ratchet disk, so as to achieve the effect of self-locking insurance after the material is clamped, thereby solving the problem that traditional pneumatic clamps are not convenient to achieve self-locking insurance, and the material may slip due to accidental opening of the clamp during the test, thereby affecting the smooth progress of the material durability fatigue test.

[0017] 2. The utility model also designs the structure of the spring, so that when clamping the material, the clamping force is achieved with the help of the elastic force of the spring, thereby avoiding the loosening of the material due to cylinder failure, and further achieving the effect of self-locking insurance after the material is clamped, further solving the problem that traditional pneumatic clamps are not easy to achieve self-locking insurance, and the clamp may accidentally open during the test, causing the material to slip, affecting the smooth progress of the material durability fatigue test. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 For this utility model Figure 1 Schematic diagram of the back structure;

[0020] Figure 3 For this utility model Figure 1 A schematic diagram of the structure in which the upper cover body is in a disassembled state;

[0021] Figure 4 It is a structural schematic diagram of the clamping assembly of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the anti-slip assembly of the utility model.

[0023] Description of the numbers in the figure:

[0024] 1. L-shaped clamp shell; 2. Boss; 3. Positioning shaft; 4. Threaded hole; 5. Upper cover; 6. Fixing bolt 1; 7. Positioning groove; 8. Cylinder; 9. Fixing bolt 2; 10. Triangular push block; 11. Connecting plate; 12. U-shaped push plate; 13. Clamping assembly; 1301. Movable wall; 1302. Connecting arm; 1303. Clamping claw; 1304. Spring; 14. Anti-slip assembly; 1401. Ratchet disk; 1402. Ratchet teeth; 1403. Protruding shaft; 1404. Connecting rod; 15. Fixed shaft; 16. Rotating shaft; 17. Connecting shaft. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 5 As shown, the utility model relates to a double-insurance pneumatic fatigue clamp controller, comprising an L-shaped clamp shell 1 with an upper cover body 5 detachably installed on the top, a cylinder 8 detachably installed on one side of the L-shaped clamp shell 1, a rod of the cylinder 8 extends out of the L-shaped clamp shell 1 and is fixedly connected with a triangular push block 10, a clamping assembly 13 for clamping materials is symmetrically and movably installed in the L-shaped clamp shell 1, a connecting plate 11 is arranged on the top of the triangular push block 10, a limiting groove is centrally arranged in the upper cover body 5, the top of the connecting plate 11 extends out of the limiting groove, and a U-shaped push plate 12 is arranged on the side surface of one end of the connecting plate 11 extending out of the limiting groove, and the top of the upper cover body 5 is symmetrically arranged An anti-slip assembly 14 is provided, and the anti-slip assembly 14 includes a ratchet disk 1401 rotatably mounted on the upper end surface of the upper cover body 5, and a ratchet tooth 1402 rotatably mounted on one side of the upper end surface of the upper cover body 5 for movably engaging with the ratchet disk 1401 and achieving a self-locking effect thereon, a top structure of the ratchet tooth 1402 is provided with a convex shaft 1403, and a torsion spring is provided at the rotational connection between the ratchet tooth 1402 and the upper cover body 5, a connecting rod 1404 is constructed on the outer edge surface of the convex shaft 1403, and one end of the U-shaped push plate 12 away from the connecting plate 11 is movably abutted against the connecting rod 1404, and a linkage structure for achieving a linkage effect is fixedly connected between the anti-slip assembly 14 and the clamping assembly 13.

[0026] like Figure 3-Figure 5As shown, in an embodiment of the utility model, the clamping assembly 13 includes a movable wall 1301 with a mounting hole formed inside, a connecting arm 1302 is structured at one end of the movable wall 1301, and a clamping claw 1303 for clamping the material is connected to the end of the connecting arm 1302 away from the movable wall 1301, a countersunk hole is formed on one side of the movable wall 1301, a spring 1304 is fixedly arranged in the countersunk hole for self-locking clamping effect on the material with the help of elastic force, and a linkage structure is fixedly installed in the mounting hole. The linkage structure includes a fixed shaft 15 fixedly installed in the mounting hole, a connecting shaft 17 is centrally constructed at the top end of the fixed shaft 15, the top end of the connecting shaft 17 extends through the upper cover body 5 and is fixedly connected to the connecting shaft 17 in the ratchet disk 1401, and a rotating shaft 16 is centrally installed at the bottom end of the fixed shaft 15, and the rotating shaft 16 can be rotatably installed in the L-shaped clamp shell 1.

[0027] like Figure 2 and Figure 3 As shown, in the embodiment of the utility model, a boss 2 is symmetrically arranged on one side of the upper end surface of the L-shaped clamp shell 1, a threaded hole 4 is provided on the top of the boss 2, and a positioning shaft 3 is provided on the top structure of the boss 2, a fixing bolt 6 with one end which can be screwed into the threaded hole 4 is provided on the upper end surface of the upper cover body 5, and a positioning groove 7 adapted for positioning and inserting the positioning shaft 3 is provided in the upper cover body 5, and a fixing bolt 9 with one end which can be screwed into the L-shaped clamp shell 1 is provided in the cylinder 8.

[0028] Working principle: This embodiment provides a double-insurance pneumatic fatigue clamp controller. When in use, first start the cylinder 8, so that the rod of the cylinder 8 extends and pushes the triangular push block 10 to move, and the triangular push block 10 pushes the movable wall 1301 to expand toward both sides, and at the same time, the spring 1304 is stretched and deformed, and the movement of the triangular push block 10 drives the connecting plate 11 to move, and the connecting plate 11 drives the U-shaped push plate 12 to move with the triangular push block 10, and the U-shaped push plate 12 applies a thrust deviating from the axis to the connecting rod 1404, thereby By forcing the ratchet teeth 1402 to deflect and disengage from the ratchet disk 1401, the clamping assembly 13 can be expanded and opened smoothly. When clamping the material, the cylinder 8 controls the triangular push block 10 to retract, and the clamping assembly 13 is reset under the elastic force of the spring 1304, and the material is clamped and fixed by the clamping claw 1303, and the U-shaped push plate 12 is disengaged from the connecting rod 1404. Under the action of the torsion spring, the ratchet teeth 1402 are reset and meshed with the ratchet disk 1401, thereby achieving the effect of self-locking insurance after clamping the material.

[0029] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A double insurance pneumatic fatigue fixture controller, characterized in that: It comprises an L-shaped clamp shell (1) with an upper cover body (5) detachably mounted on the top; A cylinder (8) is detachably mounted on one side of the L-shaped clamp shell (1), a rod of the cylinder (8) extends through the L-shaped clamp shell (1) and is fixedly connected to a triangular push block (10), a clamping assembly (13) for clamping materials is symmetrically and movably mounted in the L-shaped clamp shell (1), a connecting plate (11) is arranged on the top of the triangular push block (10), a limiting groove is centrally provided in the upper cover body (5), the top of the connecting plate (11) extends out of the limiting groove, and a U-shaped push plate (12) is arranged on the side surface of one end of the connecting plate (11) extending out of the limiting groove, and an anti-slip assembly (14) is symmetrically arranged on the top of the upper cover body (5); The anti-slip assembly (14) comprises a ratchet disc (1401) rotatably mounted on the upper end surface of the upper cover body (5); ratchet teeth (1402) rotatably mounted on one side of the upper end surface of the upper cover body (5) for movably engaging with the ratchet disc (1401) and achieving a self-locking effect on the ratchet disc (1401); a convex shaft (1403) is arranged on the top structure of the ratchet teeth (1402); a torsion spring is arranged at the rotational connection between the ratchet teeth (1402) and the upper cover body (5); a connecting rod (1404) is arranged on the outer edge surface of the convex shaft (1403); and one end of the U-shaped push plate (12) away from the connecting plate (11) movably abuts against the connecting rod (1404); The anti-slip assembly (14) and the clamping assembly (13) are fixedly connected with a linkage structure for achieving a linkage effect.

2. The double-insurance pneumatic fatigue clamp controller according to claim 1 is characterized in that: The clamping assembly (13) comprises a movable wall (1301) with a mounting hole formed therein, one end of the movable wall (1301) being provided with a connecting arm (1302), and one end of the connecting arm (1302) away from the movable wall (1301) being connected with a clamping claw (1303) for clamping a material.

3. The double insurance pneumatic fatigue clamp controller according to claim 2 is characterized in that: A countersunk hole is provided on one side of the movable wall (1301), a spring (1304) is fixedly arranged in the countersunk hole for achieving a self-locking clamping effect on the material by means of elastic force, and the linkage structure is fixedly installed in the installation hole.

4. The double insurance pneumatic fatigue clamp controller according to claim 3 is characterized in that: The linkage structure comprises a fixed shaft (15) fixedly installed in the installation hole, a connecting shaft (17) is centrally constructed at the top end of the fixed shaft (15), the top end of the connecting shaft (17) extends through the upper cover body (5) and is fixedly connected to the connecting shaft (17) in the ratchet disk (1401), and a rotating shaft (16) is centrally constructed and installed at the bottom end of the fixed shaft (15), and the rotating shaft (16) can be rotatably installed in the L-shaped clamp shell (1).

5. The double insurance pneumatic fatigue clamp controller according to claim 1 is characterized in that: A boss (2) is symmetrically arranged on one side of the upper end surface of the L-shaped clamp shell (1), a threaded hole (4) is opened on the top of the boss (2), and a positioning shaft (3) is arranged on the top of the boss (2).

6. The double insurance pneumatic fatigue clamp controller according to claim 5 is characterized in that: The upper end surface of the upper cover body (5) is provided with a fixing bolt (6) whose end can be screwed into the threaded hole (4), and a positioning groove (7) adapted for positioning and inserting the positioning shaft (3) is provided in the upper cover body (5), and a fixing bolt (9) whose end can be screwed into the L-shaped clamp shell (1) is provided in the cylinder (8).

Images