Multi-angle adjustable testing machine clamping device

Abstract

The utility model discloses a multi-angle adjustable testing machine clamping device, and relates to the technical field of clamping devices. Comprising a bottom plate, symmetrically distributed moving seats are arranged over the bottom plate, rotating discs are rotationally arranged in the moving seats, a plurality of driving grooves distributed in an annular array are formed in the rotating discs, driving blocks are slidably arranged in the driving grooves, moving plates are fixedly arranged at one ends of the driving blocks, and fixed wheels are fixedly arranged at the ends, close to each other, of the moving plates; wherein driving rods are fixedly arranged at the ends, away from the fixed wheels, of the two moving plates, one end of each driving rod slidably penetrates through one side wall of the corresponding moving seat to be arranged outside, and a frame is fixedly arranged on the upper surface of the outer portion of the bottom plate. By driving the multiple fixing wheels to be tightly attached to the tail end of the cable, it can be ensured that the cable is clamped and fixed, the situation that the cable is loosened in the testing process is prevented, and the testing precision of the cable is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping devices, in particular to a multi-angle adjustable clamping device for a testing machine. Background Art

[0002] A tensile testing machine is a commonly used testing device, usually used to measure the tensile strength and elongation of materials. Cables are usually composed of several or several groups of wires twisted together. Currently, after production, cables are usually detected using a tensile testing machine. When using a tensile testing machine for detection, a clamping device is required to clamp and fix the end of the cable.

[0003] Although the existing clamping devices can fix the cable, in the actual use process, due to the large pressure exerted by the tensile testing machine on the cable, in the existing technology, it is difficult to clamp and fix the end of the cable through a single clamping. Therefore, the cable is prone to loosening during the test, which is not conducive to the tensile testing machine to test the cable and affects the test accuracy of the cable. Summary of the Utility Model

[0004] In order to solve the problem that it is difficult to clamp and fix the end of the cable through a single clamping; the purpose of the utility model is to provide a multi-angle adjustable clamping device for a testing machine.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: including a bottom plate, symmetrically distributed moving seats are arranged directly above the bottom plate. Rotating disks are rotatably arranged in the moving seats. A plurality of driving grooves distributed in an annular array are opened in the rotating disks. Driving blocks are slidably arranged in the driving grooves. One ends of the driving blocks are fixedly provided with moving plates. Fixed wheels are fixedly provided at the ends of the moving plates close to each other. Driving rods are fixedly provided at the ends of two of the moving plates away from the fixed wheels. One ends of the driving rods slidably penetrate through one side wall of the corresponding moving seat and are placed outside. A frame is fixedly provided on the outer upper surface of the bottom plate.

[0006] Preferably, a double-headed screw rod is rotatably arranged directly above the bottom plate. Symmetrically distributed moving blocks are sleeved on the outer thread of the double-headed screw rod. The tops of the moving blocks are respectively fixedly connected to the bottoms of the corresponding moving seats.

[0007] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0008] 1. This application can achieve the effect of double fixation on the end of the cable. By driving a plurality of fixed wheels to closely fit with the end of the cable, it can ensure clamping and fixing of the cable, prevent the cable from loosening during the test, and improve the test accuracy of the cable.

[0009] 2. This application can adjust the distance between the moving seats according to the magnitude of the tested tensile force, so as to better double-clamp the end of the cable and improve the versatility of this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0011] Figure 1 It is a schematic structural diagram of the present invention.

[0012] Figure 2 It is a schematic connection structure diagram of the lead screw and the moving block in the present invention.

[0013] Figure 3 It is a schematic structural diagram of the moving seat after disassembly in the present invention.

[0014] Figure 4 It is a schematic structural diagram of the moving plate and the limiting groove in the present invention.

[0015] Figure 5 It is a schematic structural diagram of the stabilizing ring and the stabilizing groove in the present invention.

[0016] In the figure: 1. Bottom plate; 11. Frame; 2. Moving seat; 21. Rotating disk; 22. Driving groove; 23. Driving block; 24. Moving plate; 25. Fixed wheel; 26. Driving rod; 210. Cylinder; 220. Limiting groove; 230. Stabilizing ring; 240. Stabilizing groove; 3. Double-headed screw; 31. Moving block; 310. Fixing piece; 320. Connecting rod; 330. Motor; 340. Guide block; 350. Guide plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0018] Embodiment: As Figures 1-5As shown in the figure, the present utility model provides a multi-angle adjustable clamping device for a testing machine, including a bottom plate 1. Above the bottom plate 1, symmetrically distributed moving seats 2 are provided. In each moving seat 2, a rotating disk 21 is rotatably provided. In each rotating disk 21, a plurality of driving grooves 22 distributed in an annular array are formed. In each driving groove 22, a driving block 23 is slidably provided. One end of each driving block 23 is fixedly provided with a moving plate 24. One end of the moving plates 24 close to each other is fixedly provided with a fixed wheel 25. One end of the driving rods 26 far from the fixed wheel 25 on two of the moving plates 24 is fixedly provided. One end of each driving rod 26 slidably penetrates through a side wall of the corresponding moving seat 2 and is located outside. On the outer upper surface of the bottom plate 1, a frame 11 is fixedly provided.

[0019] Above the bottom plate 1, a double-headed screw rod 3 is rotatably provided. On the outer thread of the double-headed screw rod 3, symmetrically distributed moving blocks 31 are sleeved. The top ends of the moving blocks 31 are respectively fixedly connected to the bottom ends of the corresponding moving seats 2.

[0020] One end of the driving rod 26 far from the moving plate 24 is respectively provided with a cylinder 210. The driving ends of the cylinders 210 are respectively coaxially fixedly installed with the corresponding driving rods 26.

[0021] At both ends of the double-headed screw rod 3, a fixing member 310 is rotatably provided. The bottom end of the fixing member 310 is fixedly installed on the outer upper surface of the bottom plate 1; by providing the fixing member 310, the effect of fixing the double-headed screw rod 3 is achieved, so that the double-headed screw rod 3 can rotate stably.

[0022] One end of the double-headed screw rod 3 is fixedly provided with a connecting rod 320. One end of the connecting rod 320 rotatably penetrates through a side wall of the fixing member 310. One end of the connecting rod 320 far from the double-headed screw rod 3 is provided with a motor 330. The driving end of the motor 330 is coaxially fixedly installed with the connecting rod 320.

[0023] In each moving seat 2, a plurality of limiting grooves 220 distributed in an annular array are formed. The moving plates 24 are respectively slidably arranged in the corresponding limiting grooves 220; by providing the limiting grooves 220, the effect of limiting the moving plates 24 is achieved, so that the moving plates 24 can move stably.

[0024] On the outer surface of each rotating disk 21, a stabilizing ring 230 is fixedly sleeved. In each moving seat 2, a stabilizing groove 240 is formed. The stabilizing rings 230 are respectively rotatably arranged in the corresponding stabilizing grooves 240; by providing the stabilizing rings 230 and the stabilizing grooves 240, the effect of limiting the rotating disks 21 is achieved, so that the rotating disks 21 can rotate stably.

[0025] At the bottom ends of the moving seats 2, mirror-image distributed guiding blocks 340 are fixedly provided. The guiding blocks 340 are distributed in two groups. In each group of guiding blocks 340, a guiding plate 350 is slidably inserted in common. The bottom end of the guiding plate 350 is fixedly installed on the outer upper surface of the bottom plate 1. By providing the guiding blocks 340 and the guiding plate 350, the effect of limiting the moving seats 2 is achieved, so that the moving seats 2 can move stably.

[0026] Working principle: First, according to the magnitude of the tensile force to be tested, start the first motor 330. The first motor 330 drives the connecting rod 320 to rotate. The connecting rod 320 drives the double-headed screw 3 to rotate. During the rotation of the double-headed screw 3, it drives the moving blocks 31 to move towards each other or move in the reverse direction. The moving blocks 31 drive the moving seats 2 to move towards each other or move in the reverse direction, so as to adjust the distance between the moving seats 2. When the moving seats 2 move to the appropriate positions, turn off the motor 330;

[0027] Subsequently, insert the end of the cable into the two moving seats 2. Start the cylinder 210. The cylinder 210 drives the driving rod 26 to move. The driving rod 26 drives one of the moving plates 24 to move. One of the moving plates 24 drives the driving block 23 to move. During the movement of the driving block 23, it drives one of the driving grooves 22 to perform a circular motion. During the circular motion of one of the driving grooves 22, it drives the rotating disk 21 to rotate. During the rotation of the rotating disk 21, it drives the other driving grooves 22 to perform a circular motion. During the circular motion of the other driving grooves 22, it drives the other driving blocks 23 to move. The driving blocks 23 drive the other moving plates 24 to move. During the movement of the moving plates 24, they drive the fixed wheels 25 to move. When the fixed wheels 25 move to the positions where they are in close contact with the end of the cable, the double clamping and fixing of the end of the cable is completed.

[0028] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model is also intended to include these modifications and variations.

Claims

1. An adjustable multi-angle test machine clamping device, comprising a bottom plate (1), characterized in that: Above the bottom plate (1), symmetrically distributed moving seats (2) are provided. In each of the moving seats (2), a rotating disk (21) is rotatably provided. In each of the rotating disks (21), a plurality of driving grooves (22) distributed in an annular array are formed. In each of the driving grooves (22), a driving block (23) is slidably provided. At one end of each of the driving blocks (23), a moving plate (24) is fixedly provided. At one end of the moving plates (24) close to each other, a fixed wheel (25) is fixedly provided. At one end of two of the moving plates (24) away from the fixed wheel (25), a driving rod (26) is fixedly provided. One end of each of the driving rods (26) slidably penetrates through a side wall of the corresponding moving seat (2) and is located outside. On the outer upper surface of the bottom plate (1), a frame (11) is fixedly provided.

2. The clamping device of a multi-angle adjustable testing machine according to claim 1, wherein Above the bottom plate (1), a double-headed screw rod (3) is rotatably provided. On the outer thread of the double-headed screw rod (3), symmetrically distributed moving blocks (31) are sleeved. The tops of the moving blocks (31) are respectively fixedly connected to the bottoms of the corresponding moving seats (2).

3. The multi-angle adjustable test machine clamping device according to claim 1, characterized in that, At one end of each of the driving rods (26) away from the moving plate (24), a cylinder (210) is provided. The driving ends of the cylinders (210) are respectively coaxially and fixedly installed with the corresponding driving rods (26).

4. The clamping device of a multi-angle adjustable testing machine according to claim 2, wherein, At both ends of the double-headed screw rod (3), a fixing member (310) is rotatably provided. The bottom end of the fixing member (310) is fixedly installed on the outer upper surface of the bottom plate (1).

5. The clamping device of a multi-angle adjustable testing machine according to claim 4, characterized in that At one end of the double-headed screw rod (3), a connecting rod (320) is fixedly provided. One end of the connecting rod (320) rotatably penetrates through a side wall of the fixing member (310). At one end of the connecting rod (320) away from the double-headed screw rod (3), a motor (330) is provided. The driving end of the motor (330) is coaxially and fixedly installed with the connecting rod (320).

6. The clamping device of a multi-angle adjustable testing machine according to claim 1, characterized in that, In each of the moving seats (2), a plurality of limiting grooves (220) distributed in an annular array are formed. The moving plates (24) are respectively slidably arranged in the corresponding limiting grooves (220).

7. The clamping device of a multi-angle adjustable testing machine according to claim 1, characterized in that, On the outer surface of each of the rotating disks (21), a stabilizing ring (230) is fixedly sleeved. In each of the moving seats (2), a stabilizing groove (240) is formed. The stabilizing rings (230) are respectively rotatably arranged in the corresponding stabilizing grooves (240).

8. The clamping device of a multi-angle adjustable testing machine according to claim 2, wherein, At the bottom ends of the moving seats (2), mirror-image distributed guiding blocks (340) are fixedly provided. The guiding blocks (340) are distributed in two groups. In each group of the guiding blocks (340), a guiding plate (350) is commonly and slidably inserted. The bottom end of the guiding plate (350) is fixedly installed on the outer upper surface of the bottom plate (1).

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