Tensile speed calibration device

Abstract

The utility model discloses a stretching speed calibration device in the technical field of stretching speed detection, which comprises a mounting frame arranged at the rear end of a stretching testing machine, a fixing mechanism and a detection mechanism, and the fixing mechanism and the detection mechanism are both connected onto the mounting frame. The clamping device has the advantages that the distance between the two clamping assemblies can be adjusted through driving of the motor in the fixing mechanism so as to adapt to the height of the tensile testing machine, the first fastening blocks are adjusted to abut against and clamp the two sides of the tensile testing machine through the second screw rods so as to adapt to the width of the tensile testing machine, and therefore the tensile testing machine is convenient to use. The device can be installed on tensile testing machines of various sizes for calibration detection, the connecting frame and the second fastening piece are clamped on lifting plates of different thicknesses in different tensile testing machines through adjustment of a third screw rod to move along with stretching of the lifting plates, then the stretching speed is detected, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of tensile speed detection technology, specifically to a tensile speed calibration device. Background Technology

[0002] With the increasing demands for product quality in industrial production, the importance of material performance testing is becoming increasingly prominent. Among them, tensile testing, as a fundamental and important method for testing the mechanical properties of materials, plays a key role in the quality control of various materials such as metals, plastics, and rubber. Tensile speed is one of the core parameters of tensile testing, and its accuracy directly affects the validity and reliability of the test results. Therefore, it is necessary to calibrate and test the tensile speed of the tensile testing machine.

[0003] In existing technologies, most calibration methods combine manual timing with displacement measurement, which suffers from problems such as cumbersome operation, low efficiency, and large errors. Some electronic calibration devices use speed sensors for inspection, but their fixed structure means they can only be used on a single tensile testing machine and cannot be installed on tensile testing machines of different sizes, resulting in poor compatibility. Summary of the Invention

[0004] The technical problem to be solved by this utility model is that manual detection has large errors when calibrating and testing the tensile speed of existing tensile testing machines, while electronic detection devices have poor adaptability.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A tensile speed calibration device includes a mounting frame disposed at the rear end of a tensile testing machine, and further includes a fixing mechanism and a testing mechanism, both of which are connected to the mounting frame;

[0007] The fixing mechanism includes a motor and clamping components. The motor is fixed to the rear end of the mounting frame. The motor drives two clamping components to move towards each other in the vertical direction of the mounting frame to adjust the installation position. The clamping components are laterally clamped and fixed to both sides of the tensile testing machine.

[0008] The testing mechanism includes a speed measuring instrument and a connecting frame. The speed measuring instrument is vertically slidably connected to the front end of the mounting frame, and the connecting frame is fixed to the front end of the speed measuring instrument. The connecting frame is snapped onto the rear end of the lifting plate of the tensile testing machine.

[0009] Furthermore, the clamping assembly includes a fixing frame, which is configured as an inverted triangle. A first slider is fixedly connected to the inner wall of the fixing frame. A first bevel gear is fixedly connected to the motor output end. Second bevel gears are symmetrically meshed on the upper and lower sides of the first bevel gear. A first screw is fixedly connected to the second bevel gear. The first slider is threadedly connected to the first screw.

[0010] Furthermore, the mounting bracket is provided with a toothed groove, and the first bevel gear and the second bevel gear are both rotatably disposed in the toothed groove. The rear side of the mounting bracket is provided with a first sliding groove distributed on both sides of the toothed groove. The first screw is vertically rotatably connected to the first sliding groove, and the first slider is adapted to slide in the first sliding groove.

[0011] Furthermore, the mounting bracket has symmetrically distributed limiting grooves on both sides of the first sliding groove on its rear side, and the inner wall of the fixing bracket has symmetrically distributed limiting blocks on both sides of the first slider fixedly connected. The limiting blocks are L-shaped, and the limiting blocks are slidably connected in the limiting grooves, with the limiting grooves adapted to the shape of the limiting blocks.

[0012] Furthermore, a second screw is threaded through both sides of the fixing frame. A first knob is fixed to one end of the second screw, and a first fastening block for clamping the tensile testing machine is rotatably connected to the other end of the second screw. The first fastening block is made of rubber.

[0013] Furthermore, a second slider is fixedly connected to the rear end of the speed measuring instrument, and a second slide groove is provided at the front end of the mounting bracket. A slide rod is vertically fixedly connected in the second slide groove at intervals, and the second slider is slidably connected to the slide rod and adapted to slide in the second slide groove.

[0014] Furthermore, the connecting frame is configured as an inverted triangle structure, with a third screw threaded through the lower end of the connecting frame, a second knob fixedly connected to the lower end of the third screw, and a second fastening block rotatably connected to the upper end of the third screw, the second fastening block being made of rubber.

[0015] The beneficial effects of this utility model by adopting the above structure are as follows:

[0016] 1: The distance between the two clamping components can be adjusted by the motor drive in the fixing mechanism to adapt to the height of the tensile testing machine. The first fastening block is adjusted by the second screw to abut against the two sides of the tensile testing machine to adapt to the width of the tensile testing machine. Therefore, it can be installed on tensile testing machines of various sizes for calibration and testing.

[0017] 2: The connecting frame and the second fastener are clamped on lifting plates of different thicknesses in different tensile testing machines and moved with the tensile testers by adjusting the third screw, thereby detecting the tensile speed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the installation of this utility model.

[0019] Figure 2 This is a perspective view of the present invention.

[0020] Figure 3 This is an exploded view of the present invention.

[0021] Figure 4 Cross-sectional view of the mounting bracket of this utility model Figure 1 .

[0022] Figure 5 Cross-sectional view of the mounting bracket of this utility model Figure 2 .

[0023] Figure 6 This is a schematic diagram of the fixing mechanism of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Tensile testing machine; 101. Lifting plate; 2. Mounting frame; 201. Gear groove; 202. First slide groove; 203. Limiting groove; 204. Second slide groove; 3. Fixing mechanism; 301. Motor; 302. First bevel gear; 303. Second bevel gear; 304. First screw; 4. Detection mechanism; 401. Speed ​​measuring instrument; 402. Second slider; 403. Slide rod; 404. Connecting frame; 405. Third screw; 406. Second knob; 407. Second fastening block; 5. Clamping assembly; 501. Fixing frame; 502. First slider; 503. Limiting block; 504. Second screw; 505. First fastening block; 506. First knob. Detailed Implementation

[0026] like Figure 1 , 2 As shown, a tensile speed calibration device includes a mounting frame 2, which is located at the rear end of a tensile testing machine 1. It also includes a fixing mechanism 3 and a detection mechanism 4, both of which are connected to the mounting frame 2. According to the size of the tensile testing machine 1, the fixing mechanism 3 is adjusted to fix the mounting frame 2 at the rear end of the tensile testing machine 1. Then, the detection mechanism 4 is used to detect the speed when the tensile testing machine 1 is stretched.

[0027] Example 1:

[0028] like Figure 4-6As shown, the fixing mechanism 3 includes a motor 301 and clamping components 5. The motor 301 is fixed to the rear end of the mounting frame 2. The motor 301 drives two clamping components 5 to move towards each other in the vertical direction of the mounting frame 2 to adjust the installation position. The clamping components 5 are laterally clamped and fixed to both sides of the tensile testing machine 1. The clamping components 5 include a fixing frame 501, which is designed as a U-shaped structure. A first slider 502 is fixed to the inner wall of the fixing frame 501. A first bevel gear 302 is fixed to the output end of the motor 301. The first bevel gear 302 is symmetrical on the upper and lower sides. A second bevel gear 303 is engaged with the first screw 304, which is fixedly connected to the second bevel gear 303. The first slider 502 is threadedly connected to the first screw 304. The mounting bracket 2 has a toothed groove 201, and both the first bevel gear 302 and the second bevel gear 303 are rotatably disposed within the toothed groove 201. The rear side of the mounting bracket 2 has first sliding grooves 202 distributed on both sides of the toothed groove 201. The first screw 304 is vertically rotatably connected to the first sliding groove 202, and the first slider 502 slides within the first sliding groove 202 under the drive of the motor 301. The two first sliders 502 slide towards each other within the two first slide grooves 202, thereby causing the two fixed frames 501 to move towards each other on the mounting frame 2. This allows for adjustment of the spacing between the fixed frames 501 to match the height of the tensile testing machine 1. The mounting frame 2 has symmetrically distributed limiting grooves 203 on both sides of the first slide grooves 202 on its rear side. The inner wall of the fixed frame 501 is fixed with limiting blocks 503 symmetrically distributed on both sides of the first sliders 502. The limiting blocks 503 are L-shaped and slidably connected within the limiting grooves 203, with the limiting grooves 203 fitting the limiting blocks 502. The shape of the bracket 501 improves the stability of the vertical movement of the fixed frame 501 on the mounting frame 2 by the sliding of the limiting block 503 in the limiting groove 203. The fixed frame 501 is threaded with a second screw 504 on both sides. A first knob 506 is fixed to one end of the second screw 504, and a first fastening block 505 for clamping the tensile testing machine 1 is rotatably connected to the other end of the second screw 504. The first fastening block 505 is made of rubber. By rotating the first knob 506, the first fastening block 505 is clamped on both sides of the tensile testing machine 1, thereby fixing the mounting frame 2.

[0029] Example 2:

[0030] like Figure 3As shown, the testing mechanism 4 includes a speedometer 401 and a connecting frame 404. The speedometer 401 is vertically slidably connected to the front end of the mounting frame 2. The connecting frame 404 is fixedly connected to the front end of the speedometer 401 and snaps onto the rear end of the lifting plate 101 of the tensile testing machine 1. A second slider 402 is fixedly connected to the rear end of the speedometer 401. A second slide groove 204 is provided at the front end of the mounting frame 2. Slide rods 403 are vertically fixedly connected at intervals in the second slide groove 204. The second slider 402 is slidably connected to the slide rods 403 and adapts to slide within the second slide groove 204, thereby allowing the speedometer 401 to... The front end of the mounting frame 2 moves vertically and stably. The connecting frame 404 is designed with a U-shaped structure. The lower end of the connecting frame is threaded with a third screw 405. The lower end of the third screw 405 is fixed with a second knob 406. The upper end of the third screw 405 is rotatably connected with a second fastening block 407. The second fastening block 407 is made of rubber. According to the thickness of the lifting plate 101 in the tensile testing machine 1, the connecting frame 404 and the second fastening block 407 are clamped on the lifting plate 101, so that the lifting plate 101 can drive the speed measuring instrument 401 to move, and the speed measuring instrument 401 can be used to detect the speed during tensile testing.

[0031] In use, according to the dimensions of the tensile testing machine 1 and its lifting plate 101, the C-shaped connecting frame 404 is inserted into the rear end of the lifting plate 101 through its open end, so that the top surface of the inner wall of the connecting frame 404 is in contact with the upper surface of the lifting plate 101. The second knob 406 is rotated, which in turn drives the third screw 405 to spiral upward in the connecting frame 404, which in turn drives the second fastening block 407 to abut against the bottom surface of the lifting plate 101, so that the connecting frame 404 is clamped and fixed on the lifting plate 101.

[0032] Then, the output of motor 301 drives the first bevel gear 302 to rotate, which in turn drives the symmetrical second bevel gear 303 to rotate, which in turn drives the two first screws 304 with opposite threads to rotate, which in turn drives the two first sliders 502 to slide towards each other in the two first sliding grooves 202, which in turn drives the fixed frame 501 to move vertically towards each other at the rear end of the mounting frame 2, thereby adjusting the distance between the two fixed frames 501 to match the height of the tensile testing machine 1. Rotating the first knob 506 drives the second screw 504 to spiral inward at both ends of the fixed frame 501, which in turn drives The first fastening block 505 clamps and abuts against both sides of the tensile testing machine 1, so that the fixing frame 501 is clamped and fixed on the tensile testing machine, that is, the mounting frame 2 is installed and fixed at the rear end of the tensile testing machine 1. When the tensile testing machine 1 is used for tensile testing, the lifting plate 101 rises during tensile testing, and then the connecting frame 404 drives the speed measuring instrument 401 to rise with the lifting plate 101. The speed sensor in the speed measuring instrument 401 obtains the detection speed. The detection speed value is compared and calibrated with the tensile speed value displayed by the tensile testing machine 1 itself to determine whether the tensile speed of the tensile testing machine 1 is accurate.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A tensile speed calibration device, comprising a mounting frame (2), the mounting frame (2) being disposed at the rear end of a tensile testing machine (1), characterized in that: It also includes a fixing mechanism (3) and a testing mechanism (4), both of which are connected to the mounting frame (2); The fixing mechanism (3) includes a motor (301) and a clamping assembly (5). The motor (301) is fixed to the rear end of the mounting frame (2). The motor (301) drives the two clamping assemblies (5) to move towards each other in the vertical direction of the mounting frame (2) to adjust the installation position. The clamping assembly (5) is horizontally clamped and fixed on both sides of the tensile testing machine (1). The testing mechanism (4) includes a speed measuring instrument (401) and a connecting frame (404). The speed measuring instrument (401) is vertically slidably connected to the front end of the mounting frame (2). The connecting frame (404) is fixed to the front end of the speed measuring instrument (401). The connecting frame (404) is snapped onto the rear end of the lifting plate (101) of the tensile testing machine (1).

2. The tensile speed calibration device according to claim 1, characterized in that: The clamping assembly (5) includes a fixing frame (501), which is configured as a U-shaped structure. A first slider (502) is fixedly connected to the inner wall of the fixing frame (501). A first bevel gear (302) is fixedly connected to the output end of the motor (301). A second bevel gear (303) is symmetrically meshed on the upper and lower sides of the first bevel gear (302). A first screw (304) is fixedly connected to the second bevel gear (303). The first slider (502) is threadedly connected to the first screw (304).

3. The tensile speed calibration device according to claim 2, characterized in that: The mounting bracket (2) is provided with a toothed groove (201), and the first bevel gear (302) and the second bevel gear (303) are rotatably disposed in the toothed groove (201). The mounting bracket (2) is provided with a first sliding groove (202) distributed on both sides of the toothed groove (201) on the rear side. The first screw (304) is vertically rotatably connected to the first sliding groove (202), and the first slider (502) is adapted to slide in the first sliding groove (202).

4. The tensile speed calibration device according to claim 3, characterized in that: The mounting bracket (2) has symmetrically distributed limiting grooves (203) on both sides of the first sliding groove (202) on the rear side. The inner wall of the fixing bracket (501) is fixed with limiting blocks (503) symmetrically distributed on both sides of the first slider (502). The limiting blocks (503) are L-shaped. The limiting blocks (503) are slidably connected in the limiting grooves (203) and the limiting grooves (203) are adapted to the shape of the limiting blocks (503).

5. A tensile speed calibration device according to claim 2 or 4, characterized in that: The fixing frame (501) has a second screw (504) threaded through both sides. One end of the second screw (504) is fixedly connected to a first knob (506), and the other end of the second screw (504) is rotatably connected to a first fastening block (505) that holds the tensile testing machine (1). The first fastening block (505) is made of rubber.

6. The tensile speed calibration device according to claim 1, characterized in that: The speed measuring instrument (401) has a second slider (402) fixedly connected to its rear end. The mounting bracket (2) has a second slide groove (204) at its front end. The second slide groove (204) has vertically fixedly connected slide rods (403) spaced apart. The second slider (402) is slidably connected to the slide rods (403) and adapted to slide in the second slide groove (204).

7. The tensile speed calibration device according to claim 6, characterized in that: The connecting frame (404) is configured as a U-shaped structure. The lower end of the connecting frame (404) is threadedly connected to a third screw (405). The lower end of the third screw (405) is fixedly connected to a second knob (406). The upper end of the third screw (405) is rotatably connected to a second fastening block (407). The second fastening block (407) is made of rubber.

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