A fixture device for detecting the bending strength of a grinding wheel cutting piece

Abstract

The utility model discloses a kind of fixture devices for detecting the bending strength of grinding wheel cutting piece, including test stand, the test stand includes test table, two The transmission wheel of setting along first direction is rotationally connected on test table, the surface of two The transmission wheel is wound with conveyor belt.This kind of fixture device for detecting the bending strength of grinding wheel cutting piece, the design of this device adopts conveyor belt cooperation multiple clamping pieces, start driving block, conveyor belt is driven by transmission wheel to run, can make the grinding wheel of clamping move to the below of cross plate, utilize electric telescopic link and abut in the top of pressing plate, to carry out clamping to the grinding wheel in the inside of grinding wheel groove, detect the bending strength of grinding wheel under the cooperation of detecting piece, the continuous conveying detection of multiple grinding wheel cutting piece can be realized, compared with the mode of single detection small amount of grinding wheel in prior art, without frequent manual replacement grinding wheel, reduce the operation interval time, can efficiently complete the bending strength detection work of grinding wheel.

Description

Technical Field

[0001] This utility model relates to the field of grinding wheel bending strength testing technology, specifically a clamping device for testing the bending strength of grinding wheel cutting discs. Background Technology

[0002] In modern industrial production, abrasive cutting discs are an important cutting tool widely used in cutting ordinary steel, stainless steel, and non-metallic materials. They are made of abrasives and bonding resins, with glass fiber and resin as reinforcing materials, thus possessing high tensile, impact, and bending strength. This plays a crucial role in ensuring high cutting efficiency and optimal economic results for workpieces made of various materials.

[0003] In the prior art, CN216899914U discloses a clamping device for detecting the bending strength of an abrasive wheel cutting disc. The device includes an upper crossbeam connected by two columns to form a rigid frame. A vertically movable lower press is mounted on the upper crossbeam. The bottom of the lower press is a long, flat pressing head. A slide rail opposite to the upper crossbeam is provided below the upper crossbeam, and a slidable support seat is mounted on the slide rail. A slot for inserting an abrasive wheel cutting disc is horizontally provided on one side of the support seat. A pressure sensor is also mounted on the lower press. When the lower press is pressed down to contact the abrasive wheel cutting disc, the pressure sensor is triggered to output pressure data.

[0004] The press moves downwards, and the press head contacts the upper part of the abrasive cutting disc to form another linear contact point, thereby conducting a shear test. The pressure sensor outputs pressure data based on the pressure change of the press, thus testing the bending strength of the abrasive cutting disc. The above equipment is convenient for bending tests on a small number of abrasive wheels, but it is inconvenient when measuring a large number of abrasive wheels. Therefore, further optimizations have been made to address the above issues. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a fixture device for testing the bending strength of abrasive wheel cutting discs, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a clamping device for detecting the bending strength of an abrasive wheel cutting disc, comprising, The test frame includes a test platform, two drive wheels rotatably connected to the test platform along a first direction, a conveyor belt wound around the surface of the two drive wheels, a bracket provided between the two drive wheels on the upper surface of the test platform, a crossbar fixedly connected to the top of the bracket, and two detection elements provided at both ends of the crossbar. The clamping member includes a plurality of support plates disposed on the side of the conveyor belt, the upper surface of the support plate is provided with a grinding wheel groove, and a pressure plate is slidably connected above the grinding wheel groove and on the side of the support plate. An auxiliary plate is fixedly connected to the side of the bracket. A drive block is provided on the upper surface of the auxiliary plate away from the bracket. The output end of the drive block is fixedly connected to one of the transmission wheels. The surface of the bracket also includes two horizontal plates symmetrically arranged. An electric telescopic rod is provided on the upper surface of the horizontal plate. The bottom end of the electric telescopic rod passes through the horizontal plate and is used in conjunction with the pressure plate.

[0007] This utility model has the following beneficial effects: This invention relates to a clamping device for testing the bending strength of abrasive wheel cutting discs. The device employs a conveyor belt and multiple clamping components. Activating the drive block causes the conveyor belt to rotate via a transmission wheel, moving the clamped abrasive wheel below the horizontal plate. An electric telescopic rod then abuts against the top of the pressure plate, clamping the abrasive wheel inside the wheel groove. With the assistance of the testing components, the bending strength of the abrasive wheel is tested. This device enables continuous conveying and testing of multiple abrasive wheel cutting discs. Compared to existing technologies that test a small number of abrasive wheels at a time, this eliminates the need for frequent manual wheel replacements, reducing operation intervals and efficiently completing the bending strength testing of the abrasive wheel. This device is a fixture for testing the bending strength of abrasive cutting discs. When the abrasive wheel is placed inside the abrasive wheel groove and fitted onto the surface of the fixed column, the abrasive wheel is positioned by the cooperation of the extrusion strip and the spring. When the support platform rotates on the upper surface of the testing platform, the fixed column is driven to rotate by the cooperation of the gear, the guide tooth plate layer and the drive rod, which in turn drives the abrasive wheel to rotate. At this time, when the abrasive wheel rotates to another testing part, the bending strength of different parts of the abrasive wheel can be tested, thereby improving the accuracy of abrasive wheel testing. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the support plate structure of this utility model; Figure 3 This is a rear view schematic diagram of the support plate structure of this utility model; Figure 4 This is a side view of the support plate structure of this utility model; Figure 5 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0009] The components include: 1. Test bench; 2. Drive wheel; 3. Conveyor belt; 4. Support frame; 5. Crossbar; 6. Spring II; 7. Support plate; 8. Grinding wheel groove; 9. Pressure plate; 10. Auxiliary plate; 11. Drive block; 12. Hydraulic rod; 13. Pressure block; 14. Protective pad; 15. Fixed column; 16. Guide tooth plate layer; 17. Gear; 18. Drive rod; 19. Extrusion strip; 20. Spring I; 21. Slide rail; 22. Auxiliary rod; 23. Crossbar; 24. Electric telescopic rod. Detailed Implementation

[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0011] Please see Figures 1 to 5 This utility model provides a fixture device for testing the bending strength of abrasive wheel cutting discs; it includes a test frame, the test frame includes a test platform 1, two transmission wheels 2 rotatably connected to the test platform 1 and arranged along a first direction, the surfaces of the two transmission wheels 2 are wound with a conveyor belt 3, the upper surface of the test platform 1, a bracket 4 is provided between the two transmission wheels 2, the top of the bracket 4 is fixedly connected with a crossbar 5, and two testing elements are provided at both ends of the crossbar 5; like Figure 1 As shown, a support leg is fixedly connected to the bottom of the test bench 1. The support leg can support the test bench 1 and maintain its stability during use. A rubber pad is fixedly connected to the bottom of the support leg to reduce the noise generated during the operation of the equipment. The clamping component includes several support plates 7 disposed on the side of the conveyor belt 3. The upper surface of the support plate 7 is provided with a grinding wheel groove 8. A pressure plate 9 is slidably connected above the grinding wheel groove 8 and on the side of the support plate 7. An auxiliary plate 10 is fixedly connected to the side of the bracket 4. A drive block 11 is provided on the upper surface of the auxiliary plate 10 away from the bracket 4. The output end of the drive block 11 is fixedly connected to one of the transmission wheels 2. The surface of the bracket 4 also includes two horizontal plates 23 symmetrically disposed. An electric telescopic rod 24 is provided on the upper surface of the horizontal plate 23. The bottom end of the electric telescopic rod 24 passes through the horizontal plate 23 and is used in conjunction with the pressure plate 9.

[0012] The testing component includes hydraulic rods 12 fixedly connected to both ends of the crossbar 5. A pressure block 13 is fixedly connected to the bottom end of the hydraulic rod 12. A pressure sensor for detecting bending strength is provided inside the pressure block 13. A protective pad 14 is fixedly connected to the bottom end of the pressure block 13.

[0013] The grinding wheel can be placed inside the grinding wheel groove 8. The drive block 11 (powered by a motor) is activated, which drives the conveyor belt 3 to rotate through the transmission wheel 2, and synchronously drives the support plate 7 to rotate. When the support plate 7 moves to the bottom of the horizontal plate 23, the electric telescopic rod 24 is activated, which allows its output end to abut against the upper surface of the pressure plate 9, thereby squeezing and clamping the grinding wheel. At this time, the hydraulic rod 12 is activated to drive the pressure block 13 to squeeze the grinding wheel. With the cooperation of the pressure sensor, the bending strength of the grinding wheel can be quickly detected.

[0014] A fixed post 15 is rotatably connected to the center of the grinding wheel groove 8. The fixed post 15 is used in conjunction with the center hole of the grinding wheel. A retractable extrusion strip 19 is provided on the side of the fixed post 15. A spring 20 is fixedly connected to one end of the extrusion strip 19 that extends into the interior of the fixed post 15. The other end of the spring 20 is fixedly connected to the inner wall of the fixed post 15.

[0015] The upper surface of the test bench 1 is provided with a guide tooth plate layer 16. A gear 17 is rotatably connected inside the support plate 7. The bottom of the gear 17 penetrates the inner bottom wall of the support plate 7 and meshes with the guide tooth plate layer 16. A drive rod 18 is fixedly connected to one side of the gear 17. The right end of the drive rod 18 meshes with the bottom end of the fixed column 15.

[0016] The outer wall of the fixed column 15 is provided with four extrusion strips 19, which are equidistantly arranged on its outer wall. When the grinding wheel is placed in the grinding wheel groove 8 and fitted onto the outer wall of the fixed column 15, the extrusion strips 19, with the cooperation of the spring-20, abut against the inner wall of the grinding wheel's central hole, thereby positioning it. When the support plate 7 rotates, the gear 17 and the guide tooth plate layer 16 mesh and connect, so the drive rod 18 and the fixed column rotate synchronously, and the grinding wheel rotates inside the grinding wheel groove 8 at the same time. Since there are two test pieces, they are symmetrically arranged with the vertical center line of the test bench 1 as the axis of symmetry. When the first test piece tests the bending strength of the grinding wheel, when the support plate 7 drives the grinding wheel to the position of the second test piece, the second test piece can test the bending strength of different parts of the grinding wheel due to the rotation of the grinding wheel, thereby improving the accuracy of the bending strength test of the grinding wheel.

[0017] A slide 21 is provided on the side of the support plate 7 near the pressure plate 9. The connecting end of the pressure plate 9 extends into the interior of the slide 21. An auxiliary rod 22 is fixedly connected to the bottom of the connecting end. The bottom end of the auxiliary rod 22 extends into the cavity inside the support plate 7 and is fixedly connected to a spring 6. The bottom end of the spring 6 is fixedly connected to the inner bottom wall of the cavity.

[0018] When the electric telescopic rod 24 does not press the pressure plate 9, the pressure plate 9 is raised by the auxiliary rod 22 at its connecting end in cooperation with the spring 6, so that the grinding wheel can be easily removed. To facilitate the operation of the above equipment, a control module (not shown in the figure) can be installed on the side of the test bench 1 and electrically connected to the electrical components mentioned in the text to facilitate the control of its operation.

[0019] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0020] In this invention, the working steps of the device are as follows: In use, the grinding wheel is placed in the air. At this time, the electric telescopic rod 24 does not apply pressure to the pressure plate 9, and the pressure plate 9 is in the raised state under the action of the second spring 6. The grinding wheel cutting disc to be tested is placed into the grinding wheel groove 8 on the support plate 7, so that the center hole of the grinding wheel fits onto the fixing post 15. The pressing strip 19 on the side of the fixing post 15 abuts against the inner wall of the center hole of the grinding wheel under the action of the first spring 20, completing the initial positioning. Start the drive block 11, which drives the transmission wheel 2 connected to it to rotate. The conveyor belt 3 drives the support plate 7, which is equipped with a grinding wheel, to move towards the detection area. When the support plate 7 moves to below the horizontal plate 23, the drive block 11 stops working. Start the electric telescopic rod 24, whose output end extends downward and abuts against the upper surface of the pressure plate 9. The pressure plate 9 moves downward along the slide 21, and cooperates with the grinding wheel groove 8 to firmly clamp the grinding wheel. The hydraulic rod 12 is activated, causing the pressure block 13 to move downwards. The protective pad 14 at the bottom of the pressure block 13 contacts the grinding wheel and applies pressure. The pressure sensor collects pressure data in real time, completing the first bending strength test. After the test is completed, the hydraulic rod 12 drives the pressure block 13 to reset, the drive block 11 is activated again, and the support plate 7 continues to move. Because the gear 17 meshes with the guide tooth plate layer 16, the movement of the support plate 7 drives the drive rod 18 and the fixed column 15 to rotate, thereby causing the grinding wheel to rotate. When the grinding wheel moves to below the second test piece, steps 4 and 5 are repeated to perform a second bending strength test on different parts of the grinding wheel. After two tests are completed, the electric telescopic rod 24 is reset, the pressure plate 9 is raised under the action of spring 2 6, the drive block 11 drives the support plate 7 to move to the material picking position, and the tested grinding wheel is removed, completing one test cycle. The above steps can be repeated to test other grinding wheels.

[0021] 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 clamping device for testing the bending strength of an abrasive wheel cutting disc, characterized in that: include, The test frame includes a test platform (1), two drive wheels (2) rotatably connected to the test platform (1) and arranged along a first direction, the surfaces of the two drive wheels (2) are wrapped with a conveyor belt (3), the upper surface of the test platform (1) is provided with a support (4) between the two drive wheels (2), the top of the support (4) is fixedly connected with a crossbar (5), and the two ends of the crossbar (5) are provided with two detection elements; The clamping component includes several support plates (7) provided on the side of the conveyor belt (3). The upper surface of the support plate (7) is provided with a grinding wheel groove (8). A pressure plate (9) is slidably connected above the grinding wheel groove (8) and on the side of the support plate (7). An auxiliary plate (10) is fixedly connected to the side of the bracket (4). A drive block (11) is provided on the upper surface of the auxiliary plate (10) away from the bracket (4). The output end of the drive block (11) is fixedly connected to one of the transmission wheels (2). The surface of the bracket (4) also includes two horizontal plates (23) symmetrically arranged. An electric telescopic rod (24) is provided on the upper surface of the horizontal plate (23). The bottom end of the electric telescopic rod (24) passes through the horizontal plate (23) and is used in conjunction with the pressure plate (9).

2. The fixture device for detecting the bending strength of an abrasive wheel cutting disc according to claim 1, characterized in that: The testing component includes a hydraulic rod (12) fixedly connected to both ends of the crossbar (5). A pressure block (13) is fixedly connected to the bottom end of the hydraulic rod (12). A pressure sensor for detecting bending strength is provided inside the pressure block (13). A protective pad (14) is fixedly connected to the bottom end of the pressure block (13).

3. The fixture device for detecting the bending strength of an abrasive wheel cutting disc according to claim 2, characterized in that: The center of the grinding wheel groove (8) is rotatably connected to a fixed column (15), which is used in conjunction with the center hole of the grinding wheel. The side of the fixed column (15) is provided with a retractable extrusion strip (19). One end of the extrusion strip (19) extending into the interior of the fixed column (15) is fixedly connected to a spring (20), and the other end of the spring (20) is fixedly connected to the inner wall of the fixed column (15).

4. The fixture device for detecting the bending strength of an abrasive wheel cutting disc according to claim 3, characterized in that: The upper surface of the test bench (1) is provided with a guide tooth plate layer (16), and a gear (17) is rotatably connected inside the support plate (7). The bottom of the gear (17) penetrates the inner bottom wall of the support plate (7) and meshes with the guide tooth plate layer (16).

5. A fixture device for detecting the bending strength of an abrasive wheel cutting disc according to claim 4, characterized in that: A drive rod (18) is fixedly connected to one side of the gear (17), and the right end of the drive rod (18) is meshed with the bottom end of the fixed column (15). A support leg is fixedly connected to the bottom of the test bench (1).

6. The fixture device for detecting the bending strength of an abrasive wheel cutting disc according to claim 1, characterized in that: The support plate (7) has a slide (21) on the side near the pressure plate (9). The connecting end of the pressure plate (9) extends into the interior of the slide (21). An auxiliary rod (22) is fixedly connected to the bottom of the connecting end. The bottom end of the auxiliary rod (22) extends into the cavity inside the support plate (7) and is fixedly connected to a second spring (6). The bottom end of the second spring (6) is fixedly connected to the inner bottom wall of the cavity.

Images