Device for testing magnetic force of magnetic box

Abstract

The invention discloses a magnetic force testing device for a magnetic box, and belongs to the field of magnetic force testing devices.The magnetic force testing device comprises a machine table, a workbench is fixedly connected to the top end face of the machine table, side plates are fixedly connected to the two sides of the top end face of the workbench, two parallel arc-shaped plates are fixedly connected between the two side plates, and a multi-angle pulling assembly is arranged between the two arc-shaped plates; a magnetic box body is arranged above the workbench, an automatic clamping assembly is arranged between the magnetic box body and the side plate, strip-shaped grooves are formed in the two sides of the top end face of the workbench, a double-face cleaning assembly is arranged between the two strip-shaped grooves, and a closed protection mechanism is arranged outside the machine table. An arc-shaped groove allowing the arc-shaped plate to penetrate through is formed in the movable base. According to the invention, the pulling force of the magnetic box can be tested at multiple angles, the real use scene of the magnetic box can be better simulated, and the final test result is more accurate.

Description

Technical Field

[0001] The present invention relates to the field of magnetic force testing devices, and specifically to a magnetic force testing device for magnetic boxes. Background Art

[0002] Magnetic boxes used in construction, especially magnetic boxes for fixing precast concrete formwork, are magnetic fixing devices developed specifically for fixing precast concrete formwork. Compared with traditional mechanical fixing methods such as screws and nuts, magnetic box fixing has the characteristics of being lightweight and easy to operate. Construction workers can install and disassemble the formwork faster, thus saving time and improving construction efficiency. After the magnetic box is produced, it is generally necessary to detect the magnitude of its magnetic adsorption force.

[0003] Currently, the magnetic force testing device mainly uses an electronic tensile tester, usually pulling the magnetic box vertically. However, in the actual use process of the magnetic box, there is a certain deviation in the acting force, and the existing magnetic force testing device cannot perform multi-angle testing on the pulling force of the magnetic box for this situation, and cannot better simulate the real use scenario of the magnetic box, resulting in inaccurate final test results and certain defects.

[0004] Therefore, those skilled in the art have provided a magnetic force testing device for magnetic boxes to solve the problems raised in the above background art. Summary of the Invention

[0005] The purpose of the present invention is to provide a magnetic force testing device for magnetic boxes, which can perform multi-angle testing on the pulling force of the magnetic box, can better simulate the real use scenario of the magnetic box, and make the final test results more accurate, so as to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A magnetic force testing device for magnetic boxes includes a machine table. The top surface of the machine table is fixedly connected with a workbench, and both sides of the top surface of the workbench are fixedly connected with side plates. Two parallel arc-shaped plates are fixedly connected between the two side plates, and a multi-angle pulling component is arranged between the two arc-shaped plates; A magnetic force box body is arranged above the workbench, and an automatic clamping component is arranged between the magnetic force box body and the side plates. Strip-shaped grooves are opened on both sides of the top surface of the workbench, and a double-sided cleaning component is arranged between the two strip-shaped grooves. A closed protection mechanism is arranged outside the machine table.

[0007] As a further solution of the present invention: the multi-angle pulling assembly specifically includes: a moving seat sleeved on the outside of the arc plate, an arc groove for the arc plate to pass through is opened inside the moving seat, and a gear groove is opened on the bottom end face of the arc groove, a transmission gear is rotatably connected inside the gear groove, a driving motor is fixedly connected to a position corresponding to the transmission gear on one side of the moving seat, and the output shaft of the driving motor is fixedly connected to the corresponding transmission gear, the inner side face of the arc plate is fixedly connected with teeth meshing with the transmission gear, a strip support plate is fixedly connected between the two moving seats, and a first cylinder is fixedly connected to the bottom end face of the strip support plate, a tension sensor is fixedly connected to the bottom output shaft of the first cylinder, and a tooling fixture is provided below the tension sensor, the tooling fixture and the tension sensor are connected by a chain, and a bayonet groove is opened on the side face of the tooling fixture, and a metal plate is embedded in the top surface of the workbench below the tooling fixture.

[0008] As a further scheme of the present invention: the automatic clamping assembly specifically includes: a first linear guide fixed on one side surface of the side plate, the first linear guide being externally movably connected to two parallel first linear motors, and a second cylinder being fixedly connected to one side surface of the first linear motor, the output shaft of the second cylinder being fixedly connected to a limiting block, a trapezoidal plate being fixedly connected between the two limiting blocks on the same side, pull plates being fixedly connected to both sides of the top surface of the magnetic box body, and a rectangular groove being provided on the side surface of the pull plate, guide slopes matching the trapezoidal plate being symmetrically provided on both sides of the bottom end surface of the pull plate, and the guide slopes being in contact with the trapezoidal plate, the magnetic box body being located between the two trapezoidal plates, and the pull plate of the magnetic box body being clamped by the limiting blocks on both sides, the top wall of the rectangular groove being aligned and matched with the bayonet groove of the tooling fixture, and a positioning and stabilization mechanism being provided below the tooling fixture.

[0009] As a further solution of the present invention: the positioning and stabilization mechanism specifically includes: two rotating grooves symmetrically opened on both sides below the work fixture, an L-shaped clamp is rotatably connected inside the rotating groove, and a rotating motor is embedded in the inner wall of one side of the rotating groove, and the output shaft of the rotating motor is fixedly connected to the L-shaped clamp.

[0010] As a further solution of the present invention: an L-shaped support plate is fixedly connected to the first linear motor below the second cylinder, and the output shaft of the second cylinder passes through the L-shaped support plate.

[0011] As a further solution of the present invention: the double-sided cleaning component specifically includes: a second linear guide fixed to the bottom end face of the strip groove, the top end face of the second linear guide is movably connected with two juxtaposed second linear motors, the tops of the two second linear motors are jointly and fixedly connected with a box body, and a winding groove is formed on the side surface of the box body, an adjustment groove is formed above the winding groove, and a roller body is rotatably connected inside the winding groove, a stepping motor is fixedly connected to the position of the box body corresponding to the roller body on one side, and the output shaft of the stepping motor is fixedly connected with the roller body, an elevating plate matching with the adjustment groove is movably connected inside the adjustment groove, and four telescopic motors distributed in a rectangle are fixedly connected to the bottom end face of the adjustment groove, the top output shaft of the telescopic motor is fixedly connected with the elevating plate, and at least three uniformly distributed rolling grooves are formed on the top end face of the elevating plate, a rotating roller is rotatably connected inside each rolling groove, and a double-sided dust sticking belt is wound between the roller bodies in the two strip grooves.

[0012] As a further solution of the present invention: the airtight protection mechanism specifically includes: a first ear plate fixed at the corner position of the outer side surface of the machine table, the top end face of the first ear plate is fixedly connected with a light axis, the tops of the four light axes are jointly and fixedly connected with a top cover, a transparent rectangular plate is arranged outside the four light axes, and the light axis penetrates through the transparent rectangular plate, and a driving mechanism is arranged at the middle position of the two side surfaces of the machine table for driving the transparent rectangular plate to lift.

[0013] As a further solution of the present invention: the driving mechanism specifically includes: a second ear plate fixed at the middle position of the two side surfaces of the machine table, a transmission motor is fixedly connected to the bottom end face of the second ear plate, and the top output shaft of the transmission motor penetrates through the second ear plate and is fixedly connected with a lead screw, the lead screw penetrates through the transparent rectangular plate and is in threaded connection with it, and the top end of the lead screw is movably connected with the top cover.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The multi-angle pulling component provided in this application can test the pulling force of the magnetic box at multiple angles, and can better simulate the real use scenario of the magnetic box, making the final test result more accurate.

[0015] 2. The automatic clamping component provided in this application can not only automatically clamp the magnetic box quickly and accurately, but also avoid the errors caused by manual operation, improving the accuracy of the subsequent test results.

[0016] 3. The double-sided cleaning component provided in this application can remove dust from the adsorption surface of the magnetic box and the metal plate, avoiding the influence of dust and impurities on the subsequent test and improving the accuracy of the test results. In addition, the double-sided cleaning component can also adjust the winding state of the double-sided dust sticking belt according to a preset program, thereby ensuring that the subsequent cleaning effect will not decline due to the previously adhered dust and impurities.

[0017] 4. The sealed protection mechanism provided in this application can create a relatively independent test environment for the magnetic cassette during the test process, avoiding the decrease in accuracy caused by external interference in the test results. At the same time, it can also provide protection measures for the staff, preventing parts from flying out accidentally and hitting the staff during the test, thus improving safety. Description of the Drawings

[0018] Figure 1 It is a schematic structural view of a magnetic cassette magnetic force test device; Figure 2 It is a combined view of a tooling fixture and an L-shaped clamping plate in a magnetic cassette magnetic force test device; Figure 3 It is a side view of a workbench and a side plate in a magnetic cassette magnetic force test device; Figure 4 It is a structural view of a magnetic force cassette main body and a tooling fixture in a magnetic cassette magnetic force test device; Figure 5 It is an internal view of a cassette in a magnetic cassette magnetic force test device; Figure 6 It is a side view of a cassette in a magnetic cassette magnetic force test device; Figure 7 It is a combined view of a second air cylinder and a trapezoidal plate in a magnetic cassette magnetic force test device; Figure 8 It is a combined view of a tooling fixture and an L-shaped clamping plate in a magnetic cassette magnetic force test device; Figure 9 It is a combined view of a machine table and a transparent rectangular plate in a magnetic cassette magnetic force test device.

[0019] In the figure: 1. Machine platform; 2. Workbench; 3. Side plate; 4. Arc plate; 5. Moving seat; 6. Arc groove; 7. Gear groove; 8. Driving gear; 9. Driving motor; 10. Teeth; 11. Strip-shaped support plate; 12. First cylinder; 13. Tensile sensor; 14. Chain; 15. Tooling fixture; 16. Bayonet slot; 17. First linear guide; 18. First linear motor; 19. Second cylinder; 20. L-shaped support plate; 21. Limit block; 22. Trapezoidal plate; 23. Main body of magnetic force box; 24. Pulling plate; 25. Rectangular groove; 26. Guiding inclined plane; 27. Strip-shaped groove; 28. Second linear guide; 29. Second linear motor; 30. Box body; 31. Reel-in groove; 32. Roller body; 33. Stepping motor; 34. Adjusting groove; 35. Lifting plate; 36. Rolling groove; 37. Rotating roller; 38. Telescopic motor; 39. Double-sided dust sticking tape; 40. Rotating groove; 41. L-shaped clamping plate; 42. Rotating motor; 43. First ear plate; 44. Optical axis; 45. Top cover; 46. Transparent rectangular plate; 47. Second ear plate; 48. Driving motor; 49. Lead screw; 50. Metal plate. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the 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.

[0021] As mentioned in the background technology of this application, through research, it is found that the existing magnetic force testing devices mainly use electronic tensile detectors, usually pulling the magnetic box vertically. However, in the actual use process of the magnetic box, there is a certain deviation in the acting force, and the existing magnetic force testing devices cannot conduct multi-angle tests on the pulling force of the magnetic box for this situation, and cannot better simulate the real use scenario of the magnetic box, resulting in inaccurate final test results and certain defects.

[0022] To solve the above defects, this application discloses a magnetic box magnetic force testing device, which can conduct multi-angle tests on the pulling force of the magnetic box, can better simulate the real use scenario of the magnetic box, and make the final test results more accurate.

[0023] The following will introduce in detail how the solution of this application solves the above technical problems in conjunction with the accompanying drawings.

[0024] Please refer to Figures 1 to 9, in the embodiment of the present invention, a magnetic box magnetic force testing device includes a machine table 1. A workbench 2 is fixedly connected to the top surface of the machine table 1, and side plates 3 are fixedly connected to both sides of the top surface of the workbench 2. Two juxtaposed arc-shaped plates 4 are fixedly connected between the two side plates 3, and a multi-angle pulling assembly is arranged between the two arc-shaped plates 4. Above the workbench 2 is a magnetic box main body 23, and an automatic clamping assembly is arranged between the magnetic box main body 23 and the side plates 3. Strip-shaped grooves 27 are formed on both sides of the top surface of the workbench 2, and a double-sided cleaning assembly is arranged between the two strip-shaped grooves 27. A closed protection mechanism is arranged outside the machine table 1. In this application, the multi-angle pulling assembly can perform multi-angle tests on the pulling force of the magnetic box, better simulate the actual use scenario of the magnetic box, and make the final test result more accurate.

[0025] In this embodiment, the multi-angle pulling assembly specifically includes: a moving seat 5 sleeved outside the arc-shaped plate 4. An arc-shaped groove 6 for the arc-shaped plate 4 to pass through is formed inside the moving seat 5, and a gear groove 7 is formed at the bottom end surface of the arc-shaped groove 6. A transmission gear 8 is rotatably connected inside the gear groove 7. A driving motor 9 is fixedly connected to the position of the moving seat 5 corresponding to the transmission gear 8, and the output shaft of the driving motor 9 is fixedly connected to the corresponding transmission gear 8. A tooth 10 meshing with the transmission gear 8 is fixedly connected to the inner side surface of the arc-shaped plate 4. A strip-shaped support plate 11 is fixedly connected between the two moving seats 5, and a first cylinder 12 is fixedly connected to the bottom end surface of the strip-shaped support plate 11. A tension sensor 13 is fixedly connected to the bottom output shaft of the first cylinder 12, and a tooling fixture 15 is arranged below the tension sensor 13. The tooling fixture 15 is connected to the tension sensor 13 through a chain 14, and a bayonet slot 16 is formed on the side surface of the tooling fixture 15. A metal plate 50 is embedded in the top surface of the workbench 2 below the tooling fixture 15. The multi-angle pulling assembly can use the rotation of the transmission gear 8 to adjust the position of the moving seat 5 on the arc-shaped plate 4, and then adjust the inclination angle of the first cylinder 12.

[0026] In this embodiment, the automatic clamping assembly specifically includes: a first linear guide rail 17 fixed on one side surface of the side plate 3. Two juxtaposed first linear motors 18 are movably connected to the outside of the first linear guide rail 17. A second air cylinder 19 is fixedly connected to one side surface of the first linear motor 18. A limiting block 21 is fixedly connected to the output shaft of the second air cylinder 19. A trapezoidal plate 22 is fixedly connected between two limiting blocks 21 on the same side. Pulling plates 24 are fixedly connected to both sides of the top surface of the magnetic box body 23. A rectangular groove 25 is formed in the side surface of the pulling plate 24. Guide inclined surfaces 26 matching the trapezoidal plate 22 are symmetrically arranged on both sides of the bottom end surface of the pulling plate 24. The guide inclined surfaces 26 are in contact with the trapezoidal plate 22. The magnetic box body 23 is located between the two trapezoidal plates 22. The pulling plates 24 of the magnetic box body 23 are clamped by the limiting blocks 21 on both sides. The top wall of the rectangular groove 25 is aligned and matched with the bayonet slot 16 of the tooling fixture 15. A positioning and stabilizing mechanism is arranged below the tooling fixture 15. By providing the automatic clamping assembly, not only can the magnetic box be automatically clamped quickly and accurately, but also the errors caused by manual operation can be avoided, improving the accuracy of subsequent test results.

[0027] In this embodiment, the positioning and stabilizing mechanism specifically includes: two rotation grooves 40 symmetrically formed on both sides below the tooling fixture 15. An L-shaped clamping plate 41 is rotatably connected inside the rotation groove 40. A rotation motor 42 is embedded in one inner wall of the rotation groove 40. The output shaft of the rotation motor 42 is fixedly connected to the L-shaped clamping plate 41. The positioning and stabilizing mechanism can improve the accuracy and stability of the tooling fixture 15 when clamping the magnetic box.

[0028] In this embodiment, an L-shaped support plate 20 is fixedly connected to the first linear motor 18 below the second air cylinder 19. The output shaft of the second air cylinder 19 penetrates through the L-shaped support plate 20. The L-shaped support plate 20 can support the output shaft of the second air cylinder 19, improving the stability of the output shaft of the second air cylinder 19.

[0029] In this embodiment, the double-sided cleaning component specifically includes: a second linear guide rail 28 fixed to the bottom end surface of the strip-shaped groove 27. Two juxtaposed second linear motors 29 are movably connected to the top end surface of the second linear guide rail 28. A box body 30 is fixedly connected to the common top ends of the two second linear motors 29. A winding groove 31 is formed in the side surface of the box body 30. An adjustment groove 34 is formed above the winding groove 31. A roller body 32 is rotatably connected inside the winding groove 31. A stepping motor 33 is fixedly connected to the position of the box body 30 corresponding to the roller body 32 on one side surface, and the output shaft of the stepping motor 33 is fixedly connected to the roller body 32. A lifting plate 35 matching the adjustment groove 34 is movably connected inside the adjustment groove 34. Four telescopic motors 38 distributed in a rectangle are fixedly connected to the bottom end surface of the adjustment groove 34. The top output shaft of the telescopic motor 38 is fixedly connected to the lifting plate 35. At least three evenly distributed rolling grooves 36 are formed in the top end surface of the lifting plate 35. A rotating roller 37 is rotatably connected inside each rolling groove 36. A double-sided dust-removing tape 39 is wound between the roller bodies 32 in the two strip-shaped grooves 27. By providing the double-sided cleaning component, the adsorption surface of the magnetic box and the metal plate 50 can be dusted, preventing dust and impurities from affecting subsequent tests and improving the accuracy of test results. In addition, the double-sided cleaning component can also adjust the winding state of the double-sided dust-removing tape 39 according to a preset program, thereby ensuring that the subsequent cleaning effect will not decline due to the previously adhered dust and impurities.

[0030] In this embodiment, the airtight protection mechanism specifically includes: a first ear plate 43 fixed to the corner position of the outer side surface of the machine table 1. A light axis 44 is fixedly connected to the top end surface of the first ear plate 43. A top cover 45 is fixedly connected to the common top ends of the four light axes 44. A transparent rectangular plate 46 is provided outside the four light axes 44, and the light axis 44 penetrates through the transparent rectangular plate 46. Driving mechanisms are provided at the middle positions of the two side surfaces of the machine table 1 for driving the transparent rectangular plate 46 to move up and down. By providing the airtight protection mechanism in this application, a relatively independent test environment can be created for the magnetic box during the test, preventing the accuracy of the test results from being affected by external interference. At the same time, it can also provide protection measures for the staff, preventing parts from accidentally flying during the test and hitting the staff, thus improving safety.

[0031] In this embodiment, the driving mechanism specifically includes: a second ear plate 47 fixed to the middle positions of the two side surfaces of the machine table 1. A transmission motor 48 is fixedly connected to the bottom end surface of the second ear plate 47. The top output shaft of the transmission motor 48 penetrates through the second ear plate 47 and is fixedly connected to a lead screw 49. The lead screw 49 penetrates through the transparent rectangular plate 46 and is threadedly connected thereto, and the top end of the lead screw 49 is movably connected to the top cover 45. The driving mechanism drives the lead screw 49 to rotate through the transmission motor 48, thereby driving the transparent rectangular plate 46 to move up and down.

[0032] The working principle of the present invention is as follows: When in use, first, place the magnetic box body 23 to be tested between the two trapezoidal plates 22. During this process, the pull plate 24 of the magnetic box body 23 is caught by the limit blocks 21 on both sides. The magnetic box body 23 is in a suspended state by supporting the pull plate 24 through the two trapezoidal plates 22 and has a certain distance from the top surface of the workbench 2. Then, the first linear motor 18 operates and slowly moves forward along the first linear guide rail 17. During this process, the trapezoidal plates 22 support the magnetic box body 23 and move along with it. After the magnetic box body 23 moves a certain distance according to the preset program, the bottom end of the bayonet slot 16 of the tooling fixture 15 just inserts into the rectangular slot 25 of the pull plate 24, and the top end of the bayonet slot 16 is located above the pull plate 24. At this time, the magnetic box body 23 is completed with clamping. It should be noted that the tooling fixture 15 is in a natural plumb state in the initial state. In order to improve the accuracy and stability during clamping, the alignment and stability mechanism aligns the tooling fixture 15 before each clamping. Specifically, the rotation motor 42 operates according to the preset program to drive the L-shaped clamping plate 41 to rotate. The L-shaped clamping plate 41 flips out from the rotation slot 40 and stands up. The two L-shaped clamping plates 41 just clamp both sides of the tooling fixture 15 and abut against one end of the tooling fixture 15, thereby ensuring that the tooling fixture 15 can be successfully docked with the magnetic box body 23.

[0033] After the main body 23 of the magnetic force box is clamped, the rotating motor 42 operates to retract the L-shaped clamping plate 41 into the rotating groove 40, and the second air cylinder 19 operates to retract the output shaft, so that the corresponding limiting block 21 and the trapezoidal plate 22 move away from the main body 23 of the magnetic force box, and finally the main body 23 of the magnetic force box is suspended by the tooling fixture 15. Immediately afterwards, the bottom end surface of the main body 23 of the magnetic force box and the metal plate 50 are dusted by the double-sided cleaning assembly. Specifically, the second linear motor 29 operates forward along the second linear guide rail 28 by a certain distance according to a preset program. At this time, the double-sided dust sticking tape 39 higher than the top surface of the workbench 2 just reaches between the main body 23 of the magnetic force box and the metal plate 50. Subsequently, the telescopic motor 38 operates to retract the output shaft, so that the lifting plate 35 descends in the adjustment groove 34, and the double-sided dust sticking tape 39 between the main body 23 of the magnetic force box and the metal plate 50 follows and descends and contacts the metal plate 50. During this process, the double-sided dust sticking tape 39 sticks away the dust and impurities contaminated on the surface of the metal plate 50. Immediately afterwards, the telescopic motor 38 operates to extend the output shaft to the vertex. At this time, the other side of the double-sided dust sticking tape 39 contacts the bottom end surface of the main body 23 of the magnetic force box and sticks away the dust of the main body 23 of the magnetic force box. Finally, the double-sided cleaning assembly is restored to the initial position. It should be noted that the double-sided dust sticking tape 39 is in a tight state from beginning to end. When the lifting plate 35 rises, the two stepping motors 33 operate synchronously according to a preset program to drive the roller body 32 to rotate for tape feeding. When the lifting plate 35 descends, the two stepping motors 33 operate synchronously according to a preset program to drive the roller body 32 to rotate for tape taking. In addition, after the double-sided cleaning assembly completes this cleaning process, the working area of the double-sided dust sticking tape 39 is adhered with dust and impurities and cannot be used continuously. At this time, one stepping motor 33 operates according to a preset program to drive the corresponding roller body 32 to rotate for tape feeding, and the other stepping motor 33 operates according to a preset program to drive the corresponding roller body 32 to rotate for tape taking, so as to adjust the position of the double-sided dust sticking tape 39 to welcome the next cleaning work. Among them, the rotating roller 37 provided on the lifting plate 35 is to reduce the frictional resistance when the double-sided dust sticking tape 39 moves.

[0034] Then, turn on the switch of the magnetic box body 23, and the closed protection mechanism operates to create a relatively independent and safe test environment for the magnetic box body 23. Specifically: the drive motor 48 of the drive mechanism operates to drive the lead screw 49 to rotate, and then drives the transparent rectangular plate 46 to move upward. During this process, a relative displacement occurs between the transparent rectangular plate 46 and the optical axis 44 until the top end of the transparent rectangular plate 46 abuts against the bottom end face of the top cover 45, and finally a protective cover is formed around the workbench 2. Subsequently, the magnetic force test is started. In the initial state, the first cylinder 12 is in a vertical state. Therefore, during the first test, vertical force is applied through the first cylinder 12. The specific process is that the first cylinder 12 extends the output shaft by a certain length according to a preset program, so that the magnetic box body 23 pulled by the tooling fixture 15 is magnetically adsorbed on the metal plate 50. Immediately afterwards, a vertical pulling force is applied to the magnetic box body 23 by retracting the output shaft of the first cylinder 12 until the magnetic box body 23 is pulled up. Finally, the maximum adsorption force value on the tension sensor 13 is obtained, and the first vertical angle magnetic force test is completed. Subsequently, the magnetic box body 23 is magnetically adsorbed on the metal plate 50 again, and the pulling force direction is adjusted through the multi-angle pulling component to start the next round of magnetic force test. Specifically: the drive motor 9 operates to drive the transmission gear 8 to rotate. Since the transmission gear 8 meshes with the teeth 10 on the arc plate 4, during the rotation of the transmission gear 8, the moving seat 5 moves along the arc plate 4, and the strip-shaped support plate 11 follows, so that the inclination angle of the first cylinder 12 changes, thereby adjusting the pulling force angle of this round of magnetic force test. It should be noted that during the rotation of the first cylinder 12, the output shaft extends slowly according to a preset program to avoid applying a pulling force to the magnetic box body 23 in advance. After the inclination angle of the first cylinder 12 is adjusted, the first cylinder 12 retracts the output shaft to apply a pulling force to the magnetic box body 23 until the magnetic box body 23 is pulled up. Finally, the maximum adsorption force value on the tension sensor 13 is obtained, and the second inclined angle magnetic force test is completed. And so on until all rounds of magnetic force tests are completed. This setting can better simulate the real use scenario of the magnetic box and make the final test result more accurate.

[0035] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

[0036] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A magnetic force testing device for a magnetic box, characterized in that: The machine comprises a platform (1), the top surface of the machine (1) is fixedly connected to a workbench (2), and the top surfaces of the workbench (2) are fixedly connected to side panels (3), two parallel arc-shaped panels (4) are fixedly connected between the two side panels (3), and a multi-angle pulling component is provided between the two arc-shaped panels (4); A magnetic box body (23) is provided above the workbench (2), and an automatic clamping assembly is provided between the magnetic box body (23) and the side plate (3). Strip grooves (27) are provided on both sides of the top surface of the workbench (2), and a double-sided cleaning assembly is provided between the two strip grooves (27). A sealed protective mechanism is provided on the outside of the machine (1).

2. A magnetic force testing device for a magnetic box according to claim 1, characterized in that: The multi-angle pulling assembly specifically comprises: a moving seat (5) sleeved on the outside of the arc plate (4), an arc groove (6) for the arc plate (4) to pass through is provided inside the moving seat (5), and a gear groove (7) is provided on the bottom end surface of the arc groove (6), a transmission gear (8) is rotatably connected inside the gear groove (7), a driving motor (9) is fixedly connected to a side surface of the moving seat (5) at a position corresponding to the transmission gear (8), and an output shaft of the driving motor (9) is fixedly connected to the corresponding transmission gear (8), and a toothed part meshing with the transmission gear (8) is fixedly connected to the inner side surface of the arc plate (4). (10), a strip support plate (11) is fixedly connected between the two movable seats (5), and a first cylinder (12) is fixedly connected to the bottom end surface of the strip support plate (11), a tension sensor (13) is fixedly connected to the bottom output shaft of the first cylinder (12), and a tooling fixture (15) is provided below the tension sensor (13), the tooling fixture (15) and the tension sensor (13) are connected via a chain (14), and a bayonet groove (16) is provided on the side of the tooling fixture (15), and a metal plate (50) is embedded on the top surface of the workbench (2) below the tooling fixture (15).

3. A magnetic force testing device for a magnetic box according to claim 2, characterized in that: The automatic clamping assembly specifically comprises: a first linear guide rail (17) fixed on one side of the side plate (3); the first linear guide rail (17) is externally movably connected to two parallel first linear motors (18); a second cylinder (19) is fixedly connected to one side of the first linear motor (18); an output shaft of the second cylinder (19) is fixedly connected to a limit block (21); a trapezoidal plate (22) is fixedly connected between the two limit blocks (21) on the same side; and pull plates (24) are fixedly connected to both sides of the top surface of the magnetic box body (23); A rectangular groove (25) is provided on the side of the pull plate (24), and guide inclined surfaces (26) matching the trapezoidal plates (22) are symmetrically provided on both sides of the bottom end surface of the pull plate (24), and the guide inclined surfaces (26) are in contact with the trapezoidal plates (22), the magnetic box body (23) is located between the two trapezoidal plates (22), and the pull plate (24) of the magnetic box body (23) is clamped by the limit blocks (21) on both sides, the top wall of the rectangular groove (25) is aligned and matched with the bayonet groove (16) of the fixture (15), and a position calibration and stabilization mechanism is provided below the fixture (15).

4. A magnetic force testing device for a magnetic box according to claim 3, characterized in that: The alignment and stabilization mechanism specifically comprises: two rotating grooves (40) symmetrically arranged on both sides below the fixture (15); an L-shaped clamping plate (41) is rotatably connected inside the rotating groove (40); a rotating motor (42) is embedded in an inner wall of one side of the rotating groove (40); and an output shaft of the rotating motor (42) is fixedly connected to the L-shaped clamping plate (41).

5. A magnetic force testing device for a magnetic box according to claim 4, characterized in that: An L-shaped support plate (20) is fixedly connected to the first linear motor (18) below the second cylinder (19), and an output shaft of the second cylinder (19) passes through the L-shaped support plate (20).

6. A magnetic force testing device for a magnetic box according to claim 5, characterized in that: The double-sided cleaning component specifically comprises: a second linear guide rail (28) fixed to the bottom end surface of the strip groove (27); the top end surface of the second linear guide rail (28) is movably connected to two parallel second linear motors (29); the top ends of the two second linear motors (29) are commonly fixedly connected to a box body (30); a winding groove (31) is provided on the side of the box body (30); an adjustment groove (34) is provided above the winding groove (31); a roller body (32) is rotatably connected inside the winding groove (31); and a stepping motor (33) is fixedly connected to a position of a side surface of the box body (30) corresponding to the roller body (32). , and the output shaft of the stepping motor (33) is fixedly connected to the roller body (32), the adjusting groove (34) is movably connected to a lifting plate (35) matched therewith, and the bottom end surface of the adjusting groove (34) is fixedly connected to four telescopic motors (38) distributed in a rectangular shape, the top output shaft of the telescopic motor (38) is fixedly connected to the lifting plate (35), and the top end surface of the lifting plate (35) is provided with at least three evenly distributed rolling grooves (36), each of the rolling grooves (36) is rotatably connected to a rotating roller (37), and a double-sided dust-adhesive belt (39) is wound between the roller bodies (32) in the two strip grooves (27).

7. A magnetic force testing device for a magnetic box according to claim 6, characterized in that: The sealed protection mechanism specifically comprises: a first ear plate (43) fixed at a corner position of an outer side surface of the machine platform (1); the top end surface of the first ear plate (43) is fixedly connected to an optical axis (44); the top ends of four optical axes (44) are commonly fixedly connected to a top cover (45); the outsides of the four optical axes (44) are commonly provided with a transparent rectangular plate (46), and the optical axis (44) passes through the transparent rectangular plate (46); and a driving mechanism is provided at the middle position of two side surfaces of the machine platform (1) for driving the transparent rectangular plate (46) to be raised or lowered.

8. A magnetic force testing device for a magnetic box according to claim 7, characterized in that: The driving mechanism specifically comprises: a second ear plate (47) fixed at the middle position of the two side surfaces of the machine platform (1); the bottom end surface of the second ear plate (47) is fixedly connected to a transmission motor (48); the top output shaft of the transmission motor (48) passes through the second ear plate (47) and is fixedly connected to a lead screw (49); the lead screw (49) passes through the transparent rectangular plate (46) and is threadedly connected thereto; and the top end of the lead screw (49) is movably connected to the top cover (45).

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