General tension detector for experiments

Abstract

The utility model discloses a general tension detector for experiments. Comprising a bottom plate, side plates are welded to the two sides of the bottom plate, and a top plate is welded to the top ends of the side plates on the two sides; a lower clamping mechanism is fixedly installed on one side of the upper portion of the bottom plate, a winding drum is fixedly installed on the other side of the upper portion of the bottom plate, one side of the winding drum is connected with an output shaft of a servo motor, a rolling wheel is connected to the lower portion of the middle of the top plate, a thin steel cable is wound on the winding drum, and the thin steel cable is wound on the upper portion of the rolling wheel. And one end of the thin steel rope is fixedly connected with an upper clamping mechanism. The servo motor drives the winding drum to wind the thin steel cable, the lower clamping mechanism and the upper clamping mechanism are adopted to clamp materials, so that the thin steel cable is pulled, the thin steel cable is supported through the idler wheels, the lower clamping mechanism and the upper clamping mechanism are convenient to use, and various materials can be clamped conveniently.

Description

Technical Field

[0001] This utility model belongs to the field of testing instrument technology, and in particular relates to a general-purpose experimental tensile testing instrument. Background Technology

[0002] A tensile testing machine, also known as a universal testing machine, is a mechanically applied testing machine used to perform static load, tensile, compression, bending, shear, tear, and peel tests on various materials. It is suitable for testing the physical and mechanical properties of materials such as plastic sheets, pipes, profiles, plastic films, rubber, wires and cables, steel, and fiberglass. It is an indispensable testing device for material development, physical property testing, teaching research, and quality control. The tensile testing machine's clamps are a crucial component of the instrument; different materials require different clamps, and the clamps are a significant factor in the smooth conduct of the test and the accuracy of the results.

[0003] However, existing technologies have some problems: existing tensile testing instruments have low clamp adaptability, cannot achieve universal clamping for different materials, and are not convenient for tensile testing. Therefore, we propose a universal experimental tensile testing instrument. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a universal tensile testing instrument. It uses a servo motor to drive a winding drum to wind up a thin steel cable, and employs a lower clamping mechanism and an upper clamping mechanism to clamp the material, thereby achieving the pulling of the thin steel cable. The thin steel cable is supported by rollers, and the lower clamping mechanism and the upper clamping mechanism are easy to use and convenient for clamping various materials.

[0005] This utility model is implemented as follows: a general-purpose experimental tensile testing instrument includes a base plate, side plates welded to both sides of the base plate, and a top plate welded to the top of the side plates on both sides.

[0006] A lower clamping mechanism is fixedly installed on one side of the upper part of the base plate, and a take-up drum is fixedly installed on the other side of the upper part of the base plate. One side of the take-up drum is connected to the output shaft of the servo motor. A roller is connected to the lower middle part of the top plate. A thin steel cable is wound on the take-up drum and wound on the upper part of the roller. One end of the thin steel cable is fixedly connected to the upper clamping mechanism.

[0007] Specifically, the lower clamping mechanism includes a positioning base plate, which is fixed to one side of the upper part of the base plate, and a positioning plate is fixedly provided on one side of the positioning base plate.

[0008] Specifically, a positioning clamping block is fixedly provided on the other side of the positioning base plate, and a movable clamping block is attached to one side of the positioning clamping block. The opposing surfaces of the positioning clamping block and the movable clamping block are respectively provided with a first anti-slip strip and a second anti-slip strip.

[0009] Specifically, a first T-shaped groove is provided on one side of the positioning base plate, and a first T-shaped slider is fixedly provided at the bottom of the movable clamping block. The first T-shaped slider slides inside the first T-shaped groove.

[0010] Specifically, a movable connecting cylinder is fixedly provided on one side of the movable clamping block, and a locking screw is movably connected inside the movable connecting cylinder. One end of the locking screw is threaded to the positioning plate, and a first rotating handwheel is fixedly provided on one end of the locking screw.

[0011] Specifically, the upper clamping mechanism includes a limiting frame, with second T-shaped grooves on both sides of the limiting frame, clamping blocks movably mounted on both sides of the limiting frame, a second T-shaped slider fixedly mounted on the outer side of the clamping block, the second T-shaped slider sliding inside the second T-shaped groove, and a third anti-slip strip fixedly mounted on the opposite side of the clamping block.

[0012] Specifically, a rotating rod is provided through the upper part of the limiting frame, and an irregularly shaped column is provided inside the limiting frame. The irregularly shaped column is movably connected to the clamping block. A second rotating handwheel is fixedly provided at one end of the rotating rod, and a handle is fixedly provided at one end of the second rotating handwheel.

[0013] Specifically, support legs are fixedly installed at the bottom corners of the base plate, a mounting frame is fixedly installed on the upper part of the base plate, the servo motor is fixedly installed on the mounting frame, a wheel frame is fixedly installed in the middle of the bottom of the top plate, the roller is movably installed inside the wheel frame, a tension detector is fixedly installed on the upper part of the top plate, the tension detector is connected to the wheel frame, and a display is fixedly installed on the top plate and one side plate, and the display is electrically connected to the tension detector.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention uses a servo motor to drive the winding drum to rotate, enabling the winding drum to pull the thin steel cable. The rollers support the middle of the thin steel cable, which reduces the direct pulling of the thin steel cable and prevents the material from breaking directly during tensile testing.

[0016] Furthermore, the lower and upper clamping mechanisms clamp the material, facilitating the clamping of different materials. The lower clamping mechanism drives the movable clamping block to push the positioning clamping block through the locking screw, making the positioning clamping block V-shaped and the movable clamping block wedge-shaped, so that the movable clamping block can be locked inside the positioning clamping block. The upper clamping mechanism moves the clamping block downward through the irregular column, and the limiting frame is set to be larger at the top and smaller at the bottom, so that the downwardly moving clamping block can be tightened inward. Thus, the lower and upper clamping mechanisms can stably clamp and fix the material, preventing it from loosening and falling off.

[0017] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a bottom view of the structure provided by this utility model;

[0019] Figure 2 This is a side view of the structure provided by this utility model;

[0020] Figure 3 This is a schematic diagram of the lower clamping mechanism provided by this utility model;

[0021] Figure 4 This is a schematic diagram of the upper clamping mechanism provided by this utility model.

[0022] In the diagram: 1. Base plate; 2. Side plate; 3. Top plate; 4. Lower clamping mechanism; 401. Positioning base plate; 402. Positioning clamping block; 403. First anti-slip strip; 404. Movable clamping block; 405. Second anti-slip strip; 406. Movable connecting cylinder; 407. Locking screw; 408. First rotating handwheel; 409. Positioning plate; 410. First T-shaped slide groove; 411. First T-shaped slider; 5. Upper clamping mechanism; 501. Limiting frame; 502. Second T-shaped slide rail; 503. Clamping block; 504. Second T-shaped slider; 505. Rotating rod; 506. Irregular column; 507. Second rotating handwheel; 508. Handle; 509. Third anti-slip strip; 6. Roller; 7. Thin steel cable; 8. Winding drum; 9. Servo motor; 10. Tension detector; 11. Mounting bracket; 12. Support leg; 13. Wheel frame; 14. Display. Detailed Implementation

[0023] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0024] like Figures 1 to 4As shown in the figure, the present invention provides a general-purpose tensile testing instrument, including a base plate 1, side plates 2 welded to both sides of the base plate 1, and a top plate 3 welded to the top of the side plates 2.

[0025] A lower clamping mechanism 4 is fixedly installed on one side of the upper part of the base plate 1, and a take-up drum 8 is fixedly installed on the other side of the upper part of the base plate 1. One side of the take-up drum 8 is connected to the output shaft of the servo motor 9. A roller 6 is connected to the lower middle part of the top plate 3. A thin steel cable 7 is wound on the take-up drum 8. The thin steel cable 7 is wound on the upper part of the roller 6. One end of the thin steel cable 7 is fixedly connected to the upper clamping mechanism 5.

[0026] In this embodiment, preferably, the lower clamping mechanism 4 includes a positioning base plate 401, which is fixed on one side of the upper part of the base plate 1, and a positioning plate 409 is fixedly provided on one side of the positioning base plate 401.

[0027] It should be noted that the positioning base plate 401 facilitates the fixed installation of the lower clamping mechanism 4 and maintains stability, and the positioning plate 409 facilitates the positioning adjustment of the locking screw 407.

[0028] In this embodiment, preferably, a positioning clamping block 402 is fixedly provided on the other side of the positioning base plate 401, and a movable clamping block 404 is attached to one side of the positioning clamping block 402. The opposing surfaces of the positioning clamping block 402 and the movable clamping block 404 are respectively provided with a first anti-slip strip 403 and a second anti-slip strip 405.

[0029] It should be noted that the positioning clamp 402 and the movable clamp 404 are designed to facilitate the clamping and fixing of the material, and the first anti-slip strip 403 and the second anti-slip strip 405 are designed to maintain the stability of the material clamping and prevent it from loosening and slipping.

[0030] In this embodiment, preferably, a first T-shaped groove 410 is provided on one side of the positioning base plate 401, and a first T-shaped slider 411 is fixedly provided at the bottom of the movable clamping block 404. The first T-shaped slider 411 slides inside the first T-shaped groove 410.

[0031] It should be noted that the first T-shaped slider 411 slides inside the first T-shaped groove 410, so that the movable clamping block 404 can be stably slidably adjusted on the positioning base plate 401.

[0032] In this embodiment, preferably, a movable connecting cylinder 406 is fixedly provided on one side of the movable clamping block 404, and a locking screw 407 is movably connected inside the movable connecting cylinder 406. One end of the locking screw 407 is threadedly connected to the positioning plate 409, and a first rotating handwheel 408 is fixedly provided on one end of the locking screw 407.

[0033] It should be noted that the movable connecting cylinder 406 is designed to facilitate the connection of the locking screw 407, making it easy to rotate and adjust the locking screw 407. In addition, the first rotating handwheel 408 is easy to rotate, driving the locking screw 407 to advance or retract.

[0034] In this embodiment, preferably, the upper clamping mechanism 5 includes a limiting frame 501, with second T-shaped grooves 502 on both sides of the limiting frame 501, clamping blocks 503 movably mounted on both sides of the limiting frame 501, and a second T-shaped slider 504 fixedly mounted on the outer side of the clamping block 503. The second T-shaped slider 504 slides inside the second T-shaped groove 502, and a third anti-slip strip 509 is fixedly mounted on the opposite side of the clamping block 503.

[0035] It should be noted that the setting of the limit frame 501 facilitates the installation of the clamping block 503, and the setting of the second T-shaped slider 504 sliding in the second T-shaped groove 502 facilitates the stable movement of the clamping block 503, and the setting of the third anti-slip strip 509 facilitates the stability of material clamping.

[0036] In this embodiment, preferably, a rotating rod 505 is provided through the upper part of the limiting frame 501, and an irregular column 506 is provided inside the limiting frame 501. The irregular column 506 is movably connected to the clamping block 503. A second rotating handwheel 507 is fixedly provided at one end of the rotating rod 505, and a handle 508 is fixedly provided at one end of the second rotating handwheel 507.

[0037] It should be noted that by pressing down or pushing up the handle 508 on the second rotating handwheel 507, the irregular column 506 can push the clamping block 503 downward or pull it upward, thereby clamping or releasing the material.

[0038] In this embodiment, preferably, support legs 12 are fixedly provided at the bottom corners of the base plate 1, a mounting frame 11 is fixedly provided on the upper part of the base plate 1, a servo motor 9 is fixedly installed on the mounting frame 11, a wheel frame 13 is fixedly installed in the middle of the bottom of the top plate 3, a roller 6 is movably installed inside the wheel frame 13, a tension detector 10 is fixedly installed on the upper part of the top plate 3, the tension detector 10 is connected to the wheel frame 13, and a display 14 is fixedly installed on the top plate 3 and one side plate 2, and the display 14 is electrically connected to the tension detector 10.

[0039] It should be noted that the support leg 12 is used to support and fix the equipment, maintaining its balance and stability. The wheel frame 13 is designed to facilitate the installation of the roller 6, enabling the tension detector 10 to detect the tension and display the collected data on the display 14.

[0040] The specific operational procedures for this application are as follows:

[0041] In use, the bottom end of the material is clamped and fixed on the lower clamping mechanism 4, that is, the movable clamping block 404 is pushed by the first rotating handwheel 408, so that the movable clamping block 404 can be pushed towards the positioning clamping block 402, thereby enabling the movable clamping block 404 and the positioning clamping block 402 to stably clamp and fix the material. The upper end of the material is clamped in the upper clamping mechanism 5, that is, the handle 508 and the second rotating handwheel 507 drive the irregular column 506 to rotate, so that the irregular column 506 can stably clamp and fix the upper end of the material, maintaining the stability of the material clamping and fixing.

[0042] Then, the servo motor 9 is started, which drives the take-up drum 8 to wind and coil the thin steel cable 7, thereby pulling the thin steel cable 7. The end of the thin steel cable 7 is supported by the roller 6, and the other end of the thin steel cable 7 is connected to the upper end of the upper clamping mechanism 5. The roller 6 is designed to reduce the rapid pulling of the thin steel cable 7 and prevent the material from breaking under rapid pulling. When the servo motor 9 pulls the thin steel cable 7 through the take-up drum 8, the tension detector 10 detects the tension of the wheel frame 13, and the detected data is displayed on the display 14 for easy data recording.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A general-purpose tensile testing instrument, comprising a base plate (1), characterized in that: Side plates (2) are welded to both sides of the base plate (1), and top plates (3) are welded to the top of the side plates (2) on both sides; A lower clamping mechanism (4) is fixedly installed on one side of the upper part of the base plate (1), and a winding drum (8) is fixedly installed on the other side of the upper part of the base plate (1). One side of the winding drum (8) is connected to the output shaft of the servo motor (9). A roller (6) is connected to the lower middle part of the top plate (3). A thin steel cable (7) is wound on the winding drum (8). The thin steel cable (7) is wound on the upper part of the roller (6). One end of the thin steel cable (7) is fixedly connected to an upper clamping mechanism (5).

2. The universal tensile testing instrument according to claim 1, characterized in that: The lower clamping mechanism (4) includes a positioning base plate (401), which is fixed to one side of the upper part of the base plate (1), and a positioning plate (409) is fixedly provided on one side of the positioning base plate (401).

3. The universal tensile testing instrument according to claim 2, characterized in that: A positioning clamp (402) is fixedly provided on the other side of the positioning base plate (401). A movable clamp (404) is attached to one side of the positioning clamp (402). A first anti-slip strip (403) and a second anti-slip strip (405) are respectively provided on the opposite surfaces of the positioning clamp (402) and the movable clamp (404).

4. The universal tensile testing instrument according to claim 3, characterized in that: The positioning base plate (401) has a first T-shaped groove (410) on one side, and the bottom of the movable clamping block (404) is fixedly provided with a first T-shaped slider (411), which slides inside the first T-shaped groove (410).

5. The universal tensile testing instrument according to claim 4, characterized in that: A movable connecting cylinder (406) is fixedly provided on one side of the movable clamping block (404). A locking screw (407) is movably connected inside the movable connecting cylinder (406). One end of the locking screw (407) is threadedly connected to the positioning plate (409). A first rotating handwheel (408) is fixedly provided on one end of the locking screw (407).

6. The universal tensile testing instrument according to claim 1, characterized in that: The upper clamping mechanism (5) includes a limiting frame (501), and the limiting frame (501) has a second T-shaped groove (502) on both sides. Clamping blocks (503) are movably installed on both sides of the limiting frame (501). A second T-shaped slider (504) is fixedly provided on the outside of the clamping block (503). The second T-shaped slider (504) slides inside the second T-shaped groove (502). A third anti-slip strip (509) is fixedly provided on the opposite side of the clamping block (503).

7. A universal tensile testing instrument according to claim 6, characterized in that: A rotating rod (505) is provided through the upper part of the limiting frame (501). The rotating rod (505) has an irregularly shaped column (506) inside the limiting frame (501). The irregularly shaped column (506) is movably connected to the clamping block (503). A second rotating handwheel (507) is fixedly provided at one end of the rotating rod (505), and a handle (508) is fixedly provided at one end of the second rotating handwheel (507).

8. The universal tensile testing instrument according to claim 1, characterized in that: Support legs (12) are fixedly provided at the bottom corners of the base plate (1). A mounting frame (11) is fixedly provided on the upper part of the base plate (1). The servo motor (9) is fixedly installed on the mounting frame (11). A wheel frame (13) is fixedly installed in the middle of the bottom of the top plate (3). The roller (6) is movably installed inside the wheel frame (13). A tension detector (10) is fixedly installed on the upper part of the top plate (3). The tension detector (10) is connected to the wheel frame (13). A display (14) is fixedly installed on the top plate (3) and one side plate (2). The display (14) is electrically connected to the tension detector (10).

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