Plate sample clamping and conveying device

Abstract

The utility model relates to the field of plate sample clamping, in particular to a plate sample clamping and feeding device. Comprising a clamp, an experiment plate is arranged in the clamp, an auxiliary structure is arranged on one side of the clamp and comprises a vertical plate, the vertical plate is located on one side of the clamp, two mounting plates are fixedly connected to the side, close to the clamp, of the vertical plate, and two bolts are in threaded connection with the inner walls of the mounting plates. The bolt is in threaded connection with the clamp, two connecting grooves are formed in the inner wall of the vertical plate, connecting rods are slidably connected to the inner walls of the connecting grooves, connecting plates are fixedly connected to the two ends of each connecting rod, a screw rod is fixedly connected to the side, away from the clamp, of the vertical plate, and the screw rod is slidably connected with the connecting plates. The arc surface of the screw rod is in threaded connection with a threaded ring, and the threaded ring is rotationally connected with the connecting plate. The plate sample clamping and conveying device provided by the utility model has the advantage that the limiting plate can be conveniently clamped and fixed.

Description

Technical Field

[0001] The utility model relates to the field of clamping of plate specimens, in particular to a device for clamping and feeding plate specimens. Background Art

[0002] For plate specimens, during tensile and fatigue tests, the specimens need to be placed inside the fixture, and at the same time, the central lines of the fixture and the specimens coincide to ensure the coaxiality of the specimens and the equipment, so as to obtain the true mechanical properties of the specimens. There are mainly several existing methods for installing plate specimens: 1. Draw the central line at the central positions of both ends of the specimen for clamping. The fixture also has a central line. During the installation process, the central lines of the specimen and the fixture are made to coincide. Since there are human errors in both the scribing process and the specimen loading process, the coaxiality cannot be guaranteed; 2. In current mainstream testing machines, L-shaped clamping bars are provided on the upper part of the fixture. According to the width of the specimen, the size is calculated to adjust the position of the L shape. During installation, both ends of the specimen are pressed against the inner sides of the L-shaped clamping bars, thereby achieving the installation; 3. Some patents use electronic devices for centering detection and then adjustment. This device is relatively troublesome. For a large number of specimens, adjustment is required for each specimen during clamping, increasing the test process. Content of the Utility Model

[0003] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose a device for clamping and feeding plate specimens.

[0004] To solve the above technical problems, the utility model provides a device for clamping and feeding plate specimens, including: a fixture, an experimental plate is arranged inside the fixture, an auxiliary structure is arranged on one side of the fixture, the auxiliary structure includes a vertical plate located on one side of the fixture, two mounting plates are fixedly connected to the side of the vertical plate close to the fixture, two bolts are threadedly connected to the inner walls of the mounting plates, the bolts are threadedly connected to the fixture, two connecting grooves are formed in the inner wall of the vertical plate, a connecting rod is slidably connected to the inner wall of the connecting groove, connecting plates are fixedly connected to both ends of the connecting rod, a screw rod is fixedly connected to the side of the vertical plate away from the fixture, the screw rod is slidably connected to the connecting plate, a threaded ring is threadedly connected to the arc surface of the screw rod, the threaded ring is rotatably connected to the connecting plate, a moving block is fixedly connected to the end of the connecting plate away from the threaded ring, two sliding grooves are formed in the inner wall of the moving block, sliders are slidably connected to the inner walls of the sliding grooves, a limiting plate is fixedly connected to the side of the slider away from the sliding groove, several rotating rods are rotatably connected to the inner wall of the limiting plate, rollers are fixedly connected to the arc surfaces of the rotating rods, a spring is arranged inside the sliding groove, both ends of the spring are fixedly connected to the slider and the sliding groove respectively, a limiting groove is formed in the inner wall of the vertical plate, a sliding frame is slidably connected to the inner wall of the limiting groove, two pressing plates are fixedly connected to the end of the sliding frame away from the vertical plate, and the pressing plates are abutted against the fixture.

[0005] The effects achieved by the above components are as follows: When it is necessary to clamp and fix the experimental board, rotate the threaded ring to move. The threaded ring moves on the arc surface of the screw rod. The threaded ring drives the connecting plate to move. The connecting plate drives the connecting rod to move. The connecting rod slides on the inner wall of the connecting groove. The connecting plate drives the moving block to move. The moving block drives the sliding groove to move. The sliding groove drives the slider to move. The slider drives the limiting plate to move. The limiting plate separates under the extrusion of the experimental board. The limiting plate drives the slider to move. The slider slides on the inner wall of the sliding groove. The slider drives the spring to stretch. The experimental board drives the roller to rotate. The roller drives the rotating rod to rotate on the inner wall of the limiting plate. After moving to a suitable position, the resilience of the spring drives the limiting plate to clamp and fix the experimental board.

[0006] Preferably, a plurality of notches are formed on the arc surface of the roller, and the plurality of notches are evenly distributed on the roller.

[0007] The effects achieved by the above components are as follows: The notches can increase the friction between the roller and the experimental board, and prevent the roller from idling relative to the experimental board.

[0008] Preferably, a limiting rod is fixedly connected inside the sliding groove. The limiting rod is slidably connected to the slider, and the spring is sleeved on the arc surface of the limiting rod.

[0009] The effects achieved by the above components are as follows: The limiting rod can limit the spring, prevent the spring from deforming during use, and improve the service life of the spring.

[0010] Preferably, a sliding rod is fixedly connected inside the connecting groove. The sliding rod is slidably connected to the connecting rod.

[0011] The effects achieved by the above components are as follows: The sliding rod can limit the connecting rod, prevent the connecting rod from shifting during use, and improve the stability of the movement of the connecting rod.

[0012] Preferably, the ends of the limiting plates away from the moving block are all rounded.

[0013] The effects achieved by the above components are as follows: Rounding the limiting plates can facilitate the clamping and fixing of the experimental board, and shorten the time for clamping and fixing the experimental board.

[0014] Preferably, a plurality of the rollers are evenly distributed on the limiting plate, and the rollers are rubber wheels.

[0015] The effects achieved by the above components are as follows: The rubber material is relatively soft. When the limiting plate clamps the experimental board, the rollers can provide a certain degree of protection for the experimental board.

[0016] Compared with the related technologies, a clamping and sample feeding device for a sheet sample provided by the present utility model has the following beneficial effects:

[0017] The present utility model provides a clamping and sample feeding device for a sheet sample. By setting an auxiliary structure, it is achieved that the limiting plate can be conveniently clamped and fixed, avoiding the middle parallel section area and the clamping end of the sample being clamped and leaned against during the experiment on the experimental board. The clamping end is fixed on the bottom plate and can be adjusted according to the width of the sample to ensure that the center of the sample coincides with the central axis of the testing machine. The sample pushing plate is placed on the wedge-shaped fixture of the testing machine through an L-shaped platform, leaning against the wedge-shaped fixture of the testing machine as a reference. The effect of fixing the length of the clamping end of the sample can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a clamping and sample feeding device for a sheet sample provided by the present utility model;

[0019] Figure 2 is Figure 1 the schematic diagram of the auxiliary structure shown in;

[0020] Figure 3 is Figure 2 the schematic diagram of the partial structure shown in;

[0021] Figure 4 is Figure 1 the schematic diagram of the partial structure shown in;

[0022] Figure 5 is Figure 1 the schematic diagram of the side structure shown in.

[0023] Reference numerals in the drawings: 1, fixture; 2, experimental board; 3, auxiliary structure; 301, vertical plate; 302, moving block; 303, sliding groove; 304, connecting plate; 305, connecting rod; 306, sliding rod; 307, screw; 308, threaded ring; 309, connecting groove; 310, clamping plate; 311, mounting plate; 312, slider; 313, limiting rod; 314, spring; 315, roller; 316, rotating rod; 317, notch; 318, bolt; 319, limiting groove; 320, sliding frame; 321, abutting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] The following describes the specific implementation of the present utility model in detail with reference to specific embodiments.

[0026] Please refer to Figures 1 to 5 , a clamping and sample feeding device for a sheet sample provided by an embodiment of the present utility model includes: a fixture 1, an experimental plate 2 is arranged inside the fixture 1, and an auxiliary structure 3 is arranged on one side of the fixture 1.

[0027] In the embodiment of the present utility model, please refer to Figures 2 to 5, the auxiliary structure 3 includes a vertical plate 301. The vertical plate 301 is located on one side of the fixture 1. Two mounting plates 311 are fixedly connected to the side of the vertical plate 301 close to the fixture 1. Two bolts 318 are threadedly connected to the inner wall of the mounting plate 311, and the bolts 318 are threadedly connected to the fixture 1. Two connecting grooves 309 are opened in the inner wall of the vertical plate 301. A connecting rod 305 is slidably connected to the inner wall of the connecting groove 309. Connecting plates 304 are fixedly connected to both ends of the connecting rod 305. A screw rod 307 is fixedly connected to the side of the vertical plate 301 away from the fixture 1. The screw rod 307 is slidably connected to the connecting plate 304. A threaded ring 308 is threadedly connected to the arc surface of the screw rod 307. The threaded ring 308 is rotatably connected to the connecting plate 304. A moving block 302 is fixedly connected to the end of the connecting plate 304 away from the threaded ring 308. Two sliding grooves 303 are opened in the inner wall of the moving block 302. A slider 312 is slidably connected to the inner wall of the sliding groove 303. A limiting plate 310 is fixedly connected to the side of the slider 312 away from the sliding groove 303. A number of rotating rods 316 are rotatably connected to the inner wall of the limiting plate 310. A roller 315 is fixedly connected to the arc surface of the rotating rod 316. A spring 314 is arranged inside the sliding groove 303. Both ends of the spring 314 are fixedly connected to the slider 312 and the sliding groove 303 respectively. A limiting groove 319 is opened in the inner wall of the vertical plate 301. A sliding frame 320 is slidably connected to the inner wall of the limiting groove 319. Two abutting plates 321 are fixedly connected to the end of the sliding frame 320 away from the vertical plate 301. The abutting plates 321 are abutted against the fixture 1. When it is necessary to clamp and fix the experimental board 2, rotate the threaded ring 308 to move. The threaded ring 308 moves on the arc surface of the screw rod 307. The threaded ring 308 drives the connecting plate 304 to move. The connecting plate 304 drives the connecting rod 305 to move. The connecting rod 305 slides on the inner wall of the connecting groove 309. The connecting plate 304 drives the moving block 302 to move. The moving block 302 drives the sliding groove 303 to move. The sliding groove 303 drives the slider 312 to move. The slider 312 drives the limiting plate 310 to move. The limiting plate 310 is separated under the extrusion of the experimental board 2. The limiting plate 310 drives the slider 312 to move. The slider 312 slides on the inner wall of the sliding groove 303. The slider 312 drives the spring 314 to stretch. The experimental board 2 drives the roller 315 to rotate. The roller 315 drives the rotating rod 316 to rotate on the inner wall of the limiting plate 310. After moving to a suitable position, the resilience of the spring 314 drives the limiting plate 310 to clamp and fix the experimental board 2. A number of notches 317 are opened on the arc surface of the roller 315. The number of notches 317 is evenly distributed on the roller 315. The notches 317 can increase the friction between the roller 315 and the experimental board 2 and prevent idling between the roller 315 and the experimental board 2. A limiting rod 313 is fixedly connected to the inside of the sliding groove 303. The limiting rod 313 is slidably connected to the slider 312. The spring 314 is sleeved on the arc surface of the limiting rod 313.The limiting rod 313 can limit the spring 314 to prevent the spring 314 from deforming during use, thereby extending the service life of the spring 314. A sliding rod 306 is fixedly connected inside the connecting groove 309, and the sliding rod 306 is slidably connected to the connecting rod 305. The sliding rod 306 can limit the connecting rod 305 to prevent the connecting rod 305 from shifting during use, thereby enhancing the stability of the movement of the connecting rod 305. The ends of the limiting plates 310 away from the moving block 302 are all rounded. Rounding the limiting plates 310 facilitates the clamping and fixing of the experimental board 2, reducing the time required for clamping and fixing the experimental board 2. A number of rollers 315 are evenly distributed on the limiting plates 310, and the rollers 315 are rubber wheels. The rubber material is relatively soft, and when the limiting plates 310 clamp the experimental board 2, the rollers 315 can provide a certain degree of protection for the experimental board 2.

[0028] The working principle of a sample clamping and feeding device for sheet specimens provided by the present utility model is as follows: When it is necessary to clamp and fix the experimental board 2, rotate the threaded ring 308 to move. The threaded ring 308 moves on the arc surface of the screw rod 307. The threaded ring 308 drives the connecting plate 304 to move, the connecting plate 304 drives the connecting rod 305 to move, the connecting rod 305 slides on the inner wall of the connecting groove 309, the connecting plate 304 drives the moving block 302 to move, the moving block 302 drives the sliding groove 303 to move, the sliding groove 303 drives the slider 312 to move, the slider 312 drives the limiting plate 310 to move, and the limiting plate 310 separates under the extrusion of the experimental board 2. The limiting plate 310 drives the slider 312 to move, the slider 312 slides on the inner wall of the sliding groove 303, the slider 312 drives the spring 314 to stretch, the experimental board 2 drives the rollers 315 to rotate, the rollers 315 drive the rotating rod 316 to rotate on the inner wall of the limiting plate 310. After moving to a suitable position, the resilience of the spring 314 drives the limiting plate 310 to clamp and fix the experimental board 2. The notch 317 can increase the friction between the rollers 315 and the experimental board 2 to prevent idling between the rollers 315 and the experimental board 2. The limiting rod 313 can limit the spring 314 to prevent the spring 314 from deforming during use, thereby extending the service life of the spring 314. The sliding rod 306 can limit the connecting rod 305 to prevent the connecting rod 305 from shifting during use, thereby enhancing the stability of the movement of the connecting rod 305. Rounding the limiting plates 310 facilitates the clamping and fixing of the experimental board 2, reducing the time required for clamping and fixing the experimental board 2. The rubber material is relatively soft, and when the limiting plates 310 clamp the experimental board 2, the rollers 315 can provide a certain degree of protection for the experimental board 2.

[0029] The circuits and controls involved in the present utility model are all prior arts and will not be elaborated herein.

[0030] The above are only embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present utility model.

Claims

1. A clamping and sample feeding device for sheet specimens, characterized in that, Including: A fixture (1), inside which there is an experimental board (2). One side of the fixture (1) is provided with an auxiliary structure (3). The auxiliary structure (3) includes a vertical plate (301) located on one side of the fixture (1). Two mounting plates (311) are fixedly connected to the side of the vertical plate (301) close to the fixture (1). Two bolts (318) are threadedly connected to the inner wall of the mounting plate (311), and the bolts (318) are threadedly connected to the fixture (1). Two connecting grooves (309) are opened on the inner wall of the vertical plate (301). A connecting rod (305) is slidably connected to the inner wall of the connecting groove (309). Two connecting plates (304) are fixedly connected to both ends of the connecting rod (305). A screw rod (307) is fixedly connected to the side of the vertical plate (301) away from the fixture (1). The screw rod (307) is slidably connected to the connecting plate (304). A threaded ring (308) is threadedly connected to the arc surface of the screw rod (307), and the threaded ring (308) is rotatably connected to the connecting plate (304). A moving block (302) is fixedly connected to the end of the connecting plate (304) away from the threaded ring (308). Two sliding grooves (303) are opened on the inner wall of the moving block (302). A sliding block (312) is slidably connected to the inner wall of the sliding groove (303). A limiting plate (310) is fixedly connected to the side of the sliding block (312) away from the sliding groove (303). A number of rotating rods (316) are rotatably connected to the inner wall of the limiting plate (310). A roller (315) is fixedly connected to the arc surface of the rotating rod (316). A spring (314) is arranged inside the sliding groove (303). Both ends of the spring (314) are respectively fixedly connected to the sliding block (312) and the sliding groove (303). A limiting groove (319) is opened on the inner wall of the vertical plate (301). A sliding frame (320) is slidably connected to the inner wall of the limiting groove (319). Two abutting plates (321) are fixedly connected to the end of the sliding frame (320) away from the vertical plate (301), and the abutting plates (321) are abutted against the fixture (1).

2. The clamping and sample feeding device for a sheet sample according to claim 1, characterized in that, A number of notches (317) are opened on the arc surface of the roller (315), and the number of notches (317) are evenly distributed on the roller (315).

3. A clamping and sample feeding device for a sheet specimen according to claim 1, characterized in that, A limiting rod (313) is fixedly connected to the inside of the sliding groove (303), and the limiting rod (313) is slidably connected to the sliding block (312). The spring (314) is sleeved on the arc surface of the limiting rod (313).

4. The clamping and sample feeding device for sheet specimens according to claim 1, characterized in that, A sliding rod (306) is fixedly connected to the inside of the connecting groove (309), and the sliding rod (306) is slidably connected to the connecting rod (305).

5. The clamping and sample feeding device for sheet specimens according to claim 1, characterized in that, The ends of the limiting plates (310) away from the moving block (302) are all rounded.

6. The clamping and sample feeding device for sheet specimens according to claim 1, wherein, A number of the rollers (315) are evenly distributed on the limiting plate (310), and the rollers (315) are rubber wheels.

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