Clamping tool of electronic universal testing machine

Abstract

The utility model discloses a clamping tool for an electronic universal testing machine, which belongs to the technical field of clamping tools and comprises a clamp body, a mounting block is fixedly connected to the top end of the clamp body, a mounting column is fixedly connected to the center of the top end of the mounting block, and mounting holes are formed in the front side and the rear side of the outer surface of the mounting column. A clamping groove is formed in the front of the outer surface of the clamp body, moving grooves are formed in the left side and the right side of the bottom end of the inner surface of the clamping groove, fixing grooves are formed in the left side and the right side of the front of the outer surface of the clamp body, connecting screw holes are formed in the bottom ends of the inner surfaces of the fixing grooves, and stopping blocks are arranged on the inner surfaces of the fixing grooves. The inner surface of the connecting screw hole is rotationally connected with a fixing screw. According to the technical scheme, the problem that the position of the clamping block needs to be frequently adjusted when the clamping tool of the existing electronic universal testing machine is used for clamping a workpiece, so that the testing efficiency is reduced is solved.

Description

Technical Field

[0001] This utility model belongs to the field of clamping fixture technology, specifically relating to a clamping fixture for an electronic universal testing machine. Background Technology

[0002] Universal testing machines are material testing machines that integrate tensile, bending, compression, shear, and ring stiffness testing functions. They are mainly used for mechanical property testing of metallic and non-metallic materials and are ideal testing equipment for industrial and mining enterprises, scientific research units, colleges and universities, engineering quality supervision stations and other departments. The most common types are lever pendulum type and hydraulic pendulum type.

[0003] The prior art patent publication number CN218592799U discloses a clamping fixture for an electronic universal testing machine, which can clamp and fix workpieces of different diameters, avoiding frequent replacement of clamping blocks according to the size of the workpiece and reducing the limitations of the device's use. It includes an electronic universal testing machine body used for performance testing of workpieces. The fixture is characterized by including two sets of power mechanisms and multiple sets of clamping blocks. The two sets of power mechanisms are respectively installed at the top of the bottom of the electronic universal testing machine body and the bottom of the upper part of the electronic universal testing machine body, and the power mechanisms are used to drive the clamping blocks to move left and right. The multiple sets of clamping blocks are located in pairs on the upper and lower sides of the electronic universal testing machine body, and the inner end of each clamping block is provided with a fixing groove, the diameter of which is larger than the diameter of the workpiece to be clamped.

[0004] However, this clamping fixture requires frequent opening and closing of the motor when clamping and fixing the workpiece. This operation is cumbersome, time-consuming and labor-intensive. Therefore, a clamping fixture for an electronic universal testing machine is needed to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of this invention is to provide a clamping fixture for an electronic universal testing machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a clamping fixture for an electronic universal testing machine, comprising a fixture body, an mounting block fixedly connected to the top of the fixture body, an mounting column fixedly connected to the center of the top of the mounting block, mounting holes on the front and rear sides of the outer surface of the mounting column, a clamping groove on the front of the outer surface of the fixture body, and moving grooves on the left and right sides of the bottom end of the inner surface of the clamping groove.

[0007] In a preferred embodiment, the outer surface of the fixture body is provided with fixing grooves on the left and right sides directly in front, the bottom of the inner surface of the fixing groove is provided with a connecting screw hole, the inner surface of the fixing groove is provided with a blocking block, and the inner surface of the connecting screw hole is rotatably connected with a fixing screw.

[0008] In a preferred embodiment, a groove is provided on the front of the outer surface of the clamp body, the groove is located at the top of the clamping groove, and a rotating groove is provided at the center of the outer surface of the mounting block and the inner surface of the groove. Connecting rods are fixedly connected to the left and right sides of the inner surface of the rotating groove, and rotating rollers are rotatably connected to the outer surface of the connecting rods.

[0009] In a preferred embodiment, a connecting block is fixedly connected to the bottom end of the outer surface of the rotating roller, a support block is fixedly connected to the bottom end of the connecting block, a support column is fixedly connected to the top end of the outer surface of the rotating roller, a connecting column is fixedly connected to the top end of the support column, and a toggle lever is fixedly connected to the top end of the connecting column.

[0010] In a preferred embodiment, a telescopic column is slidably connected to the top of the inner surface of the clamping groove, and a plurality of rectangularly arrayed snap-fit ​​grooves are opened on the front of the outer surface of the telescopic column. A connecting base is fixedly connected to the bottom of the telescopic column, and a movable circular block is fixedly connected to the bottom of the connecting base.

[0011] In a preferred embodiment, two clamping blocks are symmetrically arranged on the left and right sides of the inner surface of the clamping groove. The two clamping blocks slide up and down on the inner surface of the clamping groove. A slot is opened at the top of the inner side of the outer surface of the clamping block. A positioning post is fixedly connected to the rear of the outer surface of the clamping block. The positioning post moves up and down inside the moving groove.

[0012] Compared with the prior art, the clamping fixture for an electronic universal testing machine provided by this utility model has at least the following beneficial effects:

[0013] (1) By using the blocking block, the two clamping blocks are symmetrically placed in the clamping groove, so that the moving round block is set in the slot inside the two clamping blocks, so that the positioning post is placed in the moving groove to facilitate the movement of the clamping block, so that the blocking block is slid into the fixed groove, so that the fixing screw is rotated and connected in the connecting screw hole, so that the blocking block is fixed in the fixed groove, so that the blocking blocks on both sides protrude in the fixed groove to block the two clamping blocks in the clamping groove, thereby preventing the clamping blocks from falling out of the clamping groove when clamping and fixing the experimental workpiece.

[0014] (2) By moving the circular block and the clamping block, the actuating rod is moved up and down, thereby causing the actuating rod to drive the connecting column and the support column to move up and down. This causes the rotating roller to rotate up and down on the outer surface of the connecting rod, which in turn causes the rotating roller to drive the connecting block to move up and down. This causes the connecting block to drive the support block to move up and down, so that the top of the support block slides into the locking groove. When the top of the support block is driven up and down, it drives the telescopic column to move up and down, which in turn drives the moving circular block at the bottom to move up and down. Since the moving circular block is in the locking groove of the two clamping blocks on the left and right, it drives the clamping blocks to move up and down. Since the clamping groove is narrow at the bottom and wide at the top, the clamping width between the two clamping blocks can be changed at any time when they move up and down inside the clamping groove. This allows the clamping width to be changed at any time when testing workpieces of different sizes, thereby improving the practicality of the tooling. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the clamping groove of this utility model;

[0017] Figure 3 This is a schematic diagram of the blocking block connection structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the clamping block structure of this utility model.

[0019] In the diagram: 1. Fixture body; 2. Mounting block; 3. Mounting column; 4. Mounting hole; 5. Clamping groove; 6. Moving groove; 7. Fixing groove; 8. Connecting screw hole; 9. Blocking block; 10. Fixing screw; 11. Groove; 12. Rotating groove; 13. Connecting rod; 14. Rotating roller; 15. Connecting block; 16. Support block; 17. Support column; 18. Connecting column; 19. Actuating rod; 20. Telescopic column; 21. Snap-fit ​​groove; 22. Connecting base; 23. Moving circular block; 24. Clamping block; 25. Snap-fit ​​groove; 26. Positioning column. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments.

[0021] Please see Figure 1-4 This utility model provides a clamping fixture for an electronic universal testing machine, including a clamping body 1, a mounting block 2 fixedly connected to the top of the clamping body 1, a mounting post 3 fixedly connected to the center of the top of the mounting block 2, mounting holes 4 on the front and rear sides of the outer surface of the mounting post 3, a clamping groove 5 on the front of the outer surface of the clamping body 1, and moving grooves 6 on the left and right sides of the bottom of the inner surface of the clamping groove 5.

[0022] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the outer surface of the fixture body 1 has a fixing groove 7 on the left and right sides directly in front, a connecting screw hole 8 is provided at the bottom of the inner surface of the fixing groove 7, a blocking block 9 is provided on the inner surface of the fixing groove 7, and a fixing screw 10 is rotatably connected to the inner surface of the connecting screw hole 8.

[0023] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that a groove 11 is provided on the front of the outer surface of the clamp body 1. The groove 11 is located at the top of the clamping groove 5. A rotating groove 12 is provided at the center of the outer surface of the mounting block 2 and the inner surface of the groove 11. Connecting rods 13 are fixedly connected to the left and right sides of the inner surface of the rotating groove 12. A rotating roller 14 is rotatably connected to the outer surface of the connecting rods 13.

[0024] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that a connecting block 15 is fixedly connected to the bottom of the outer surface of the rotating roller 14, a support block 16 is fixedly connected to the bottom of the connecting block 15, a support column 17 is fixedly connected to the top of the outer surface of the rotating roller 14, a connecting column 18 is fixedly connected to the top of the support column 17, and a toggle rod 19 is fixedly connected to the top of the connecting column 18.

[0025] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that a telescopic column 20 is slidably connected to the top of the inner surface of the clamping groove 5. Several rectangular arrayed snap-fit ​​grooves 21 are opened on the front of the outer surface of the telescopic column 20. A connecting base 22 is fixedly connected to the bottom of the telescopic column 20. A movable circular block 23 is fixedly connected to the bottom of the connecting base 22. Through the blocking block 9, the two clamping blocks 24 are symmetrically placed in the clamping groove 5, so that the movable circular block 23 is set in the snap-fit ​​groove 25 inside the two clamping blocks 24. This allows the positioning column 26 to be placed in the movable groove 6 to facilitate the movement of the clamping blocks 24, thereby sliding the blocking block 9 into the fixed groove 7. The fixing screw 10 is rotated and connected in the connecting screw hole 8, thereby fixing the blocking block 9 in the fixed groove 7. Thus, the blocking blocks 9 on both sides protrude in the fixed groove 7 to block the two clamping blocks 24 in the clamping groove 5, thereby preventing the clamping blocks 24 from falling out of the clamping groove 5 when clamping and fixing the experimental workpiece.

[0026] Further as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, it is worth noting that two clamping blocks 24 are symmetrically arranged on the left and right sides of the inner surface of the clamping groove 5. The two clamping blocks 24 slide up and down on the inner surface of the clamping groove 5. A slot 25 is opened at the top of the inner side of the outer surface of the clamping block 24. A positioning post 26 is fixedly connected to the rear of the outer surface of the clamping block 24. The positioning post 26 moves up and down inside the moving groove 6. By moving the circular block 23 and the clamping block 24, the actuating rod 19 is moved up and down, thereby causing the actuating rod 19 to drive the connecting post 18 and the support post 17 to move up and down. This causes the rotating roller 14 to rotate up and down on the outer surface of the connecting rod 13, thereby causing the rotating roller 14 to drive the connecting block 15 to move up and down, thus making The connecting block 15 drives the support block to move up and down, so that the top of the support block 16 slides into the locking groove 21. When the top of the support block 16 is driven to move up and down, it drives the telescopic column 20 to move up and down. This causes the telescopic column 20 to drive the bottom moving circular block 23 to move up and down. Since the moving circular block 23 is located in the locking groove 25 of the two clamping blocks 24, it drives the clamping blocks 24 to move up and down. Since the clamping groove 5 is narrow at the bottom and wide at the top, the clamping width between the two clamping blocks 24 can be changed at any time when they move up and down inside the clamping groove 5. This allows the clamping width to be changed at any time when testing workpieces of different sizes, thereby improving the practicality of the tooling.

[0027] This solution has the following working process: First, two clamping blocks 24 are symmetrically placed in the clamping groove 5, so that the moving circular block 23 is set in the slot 25 inside the two clamping blocks 24, so that the positioning post 26 is placed in the moving groove 6 to facilitate the movement of the clamping blocks 24, then the blocking block 9 is slid into the fixing groove 7, and then the fixing screw 10 is rotated and connected in the connecting screw hole 8, so that the blocking block 9 is fixed in the fixing groove 7, so that the blocking blocks 9 on both sides protrude in the fixing groove 7 and block the two clamping blocks 24 in the clamping groove 5, then the workpiece to be tested is placed between the two clamping blocks 24, so that the actuating rod 19 is moved downward, so that the actuating rod 19 drives the connecting post 18 and the support post 17 to move downward. This causes the rotating roller 14 to rotate downward on the outer surface of the connecting rod 13, which in turn causes the rotating roller 14 to drive the connecting block 15 to move downward. This causes the connecting block 15 to drive the support block to move downward, allowing the top of the support block 16 to slide into the locking groove 21. As the top of the support block 16 is driven downward, it drives the telescopic column 20 to move downward, which in turn drives the bottom moving round block 23 to move downward. Since the moving round block 23 is located in the locking groove 25 of the two clamping blocks 24, it drives the clamping blocks 24 to move downward, thus reducing the clamping width between the two clamping blocks 24 and clamping and fixing the workpiece. After the test is completed, the clamped workpiece can be removed and replaced by pushing the lever 19 upward.

[0028] According to the above working process: By using the blocking block 9, the two clamping blocks 24 are symmetrically placed in the clamping groove 5, so that the moving round block 23 is positioned in the slot 25 inside the two clamping blocks 24. This allows the positioning post 26 to be placed in the moving groove 6, facilitating the movement of the clamping blocks 24. The blocking block 9 is then slid into the fixing groove 7, and the fixing screw 10 is rotated into the connecting screw hole 8, thus fixing the blocking block 9 in the fixing groove 7. The protruding positions of the blocking blocks 9 on both sides in the fixing groove 7 block the two clamping blocks 24 within the clamping groove 5, preventing the clamping blocks 24 from falling out of the clamping groove 5 when clamping and fixing the experimental workpiece. By moving the round block 23 and the clamping blocks 24, the actuating rod 19 is moved up and down, causing the actuating rod 19 to move the connecting post 18 and the support post 17 up and down. The rotating roller 14 rotates up and down on the outer surface of the connecting rod 13, thereby causing the rotating roller 14 to drive the connecting block 15 to move up and down. This causes the connecting block 15 to drive the support block to move up and down, allowing the top of the support block 16 to slide into the locking groove 21. As the top of the support block 16 is driven up and down, it drives the telescopic column 20 to move up and down, which in turn drives the bottom moving round block 23 to move up and down. Since the moving round block 23 is located in the locking groove 25 of the two left and right clamping blocks 24, it drives the clamping blocks 24 to move up and down. Because the clamping groove 5 is narrow at the bottom and wide at the top, the clamping width between the two clamping blocks 24 can be changed at any time when they move up and down inside the clamping groove 5. This allows the clamping width to be changed at any time when testing workpieces of different sizes, thereby improving the practicality of the tooling.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A clamping fixture for an electronic universal testing machine, comprising a clamping body (1), characterized in that: The top of the clamp body (1) is fixedly connected to a mounting block (2), and a mounting post (3) is fixedly connected to the center of the top of the mounting block (2). Mounting holes (4) are provided on the front and rear sides of the outer surface of the mounting post (3). A clamping groove (5) is provided on the front of the outer surface of the clamp body (1). Moving grooves (6) are provided on the left and right sides of the bottom of the inner surface of the clamping groove (5).

2. The clamping fixture for an electronic universal testing machine according to claim 1, characterized in that: The clamp body (1) has a fixing groove (7) on the left and right sides of the front of the outer surface. The bottom of the inner surface of the fixing groove (7) has a connecting screw hole (8). The inner surface of the fixing groove (7) is provided with a blocking block (9). The inner surface of the connecting screw hole (8) is rotatably connected with a fixing screw (10).

3. The clamping fixture for an electronic universal testing machine according to claim 1, characterized in that: A groove (11) is provided on the front of the outer surface of the clamp body (1). The groove (11) is located at the top of the clamping groove (5). A rotating groove (12) is provided at the center of the outer surface of the mounting block (2) and the inner surface of the groove (11). A connecting rod (13) is fixedly connected to the left and right sides of the inner surface of the rotating groove (12). A rotating roller (14) is rotatably connected to the outer surface of the connecting rod (13).

4. The clamping fixture for an electronic universal testing machine according to claim 3, characterized in that: A connecting block (15) is fixedly connected to the bottom of the outer surface of the rotating roller (14), a support block (16) is fixedly connected to the bottom of the connecting block (15), a support column (17) is fixedly connected to the top of the outer surface of the rotating roller (14), a connecting column (18) is fixedly connected to the top of the support column (17), and a toggle rod (19) is fixedly connected to the top of the connecting column (18).

5. The clamping fixture for an electronic universal testing machine according to claim 1, characterized in that: The top of the inner surface of the clamping groove (5) is slidably connected to a telescopic column (20). The outer surface of the telescopic column (20) has several rectangular arrayed snap-fit ​​grooves (21) on the front. The bottom end of the telescopic column (20) is fixedly connected to a connecting base (22). The bottom end of the connecting base (22) is fixedly connected to a movable circular block (23).

6. The clamping fixture for an electronic universal testing machine according to claim 1, characterized in that: Two clamping blocks (24) are symmetrically arranged on the left and right sides of the inner surface of the clamping groove (5). The two clamping blocks (24) slide up and down on the inner surface of the clamping groove (5). A slot (25) is opened at the top of the inner side of the outer surface of the clamping block (24). A positioning post (26) is fixedly connected to the rear of the outer surface of the clamping block (24). The positioning post (26) moves up and down inside the moving groove (6).

Images