Magnetic attraction force detection device

Abstract

The utility model provides a magnetic attraction force detection device which comprises a support, an objective table and an attraction force detection mechanism, the objective table and the attraction force detection mechanism are connected to the support, the objective table is used for bearing a to-be-detected product, and the attraction force detection mechanism is located below the objective table and used for detecting the attraction force of the to-be-detected product; the suction detection mechanism comprises a hoisting weight and a lifting assembly, a first connecting piece is arranged on the hoisting weight, a second connecting piece is arranged on the lifting assembly, and in an initial state, the first connecting piece is located above the second connecting piece and abuts against the second connecting piece; the lifting assembly is used for lifting the hoisting weight block, and after the hoisting weight block abuts against the lower end face of the objective table, the hoisting weight block continues to be lifted, so that the first connecting piece is located below the second connecting piece and breaks away from abutting against the second connecting piece; after the suction force detection is finished, the lifting assembly descends, and after the first connecting piece abuts against the second connecting piece, the lifting assembly continues to descend and drives the hoisting weight to be separated from the lower end face of the objective table. The device is simple to operate, convenient to use and high in detection efficiency, and reduces the labor intensity of workers.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic force detection, in particular to a magnetic attraction detection device. Background Art

[0002] Magnetic attraction generally refers to the force generated when a magnet or magnetic component is pulled apart parallel to the magnetization direction. The direction of this force is parallel to the magnetization direction, and the effect of this force is to return the magnet or magnetic component to its initial position parallel to the magnetization direction.

[0003] Magnetic products are widely used in various industries. To ensure product quality, magnetic products must undergo magnetic attraction testing before leaving the factory. Existing magnetic attraction testing typically involves an inspector taking a standard weight and manually attaching it to the product. If the weight remains suspended, the product's magnetic attraction passes; otherwise, it fails. At the end of the magnetic attraction test, the weight must be removed from the product to facilitate the next operation. Because the weight is heavy, prolonged suction and removal can easily lead to fatigue, reducing inspection efficiency and even causing misjudgments and missed detections. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a magnetic attraction detection device with high detection efficiency and low misjudgment rate.

[0005] The technical solution of the present utility model is to provide a magnetic attraction detection device with the following structure:

[0006] It includes a bracket, a loading platform connected to the bracket, and a suction detection mechanism, wherein the loading platform is used to carry the product to be tested, and the suction detection mechanism is located below the loading platform and is used to detect the suction of the product to be tested;

[0007] The suction detection mechanism includes a lifting weight and a lifting assembly, the lifting weight is provided with a first connecting member, and the lifting assembly is provided with a second connecting member. In the initial state, the first connecting member is located above the second connecting member and abuts against the second connecting member; the lifting assembly is used to lift the lifting weight, and after the lifting weight abuts against the lower end surface of the loading platform, it continues to lift so that the first connecting member is located below the second connecting member and disengages from the second connecting member; after the suction detection is completed, the lifting assembly descends, so that the first connecting member abuts against the second connecting member, and then continues to descend and drives the lifting weight to separate from the lower end surface of the loading platform.

[0008] After adopting the above structure, the magnetic attraction force detection device of the present invention has the following advantages compared with the prior art:

[0009] When performing a magnetic attraction test, the utility model only needs to drive the lifting block upward through the lifting assembly so that the lifting block contacts the lower end surface of the loading platform. At this time, the lifting block will be magnetically attracted to the product to be tested on the loading platform. Then, the lifting assembly continues to lift and separates the first connecting member from the second connecting member. At this time, the lifting block is completely suspended in the air on the lower end surface of the loading platform by the magnetic attraction. If the lifting block does not fall, it means that the magnetic attraction of the product to be tested meets the requirements. If the lifting block falls, it means that the magnetic attraction of the product to be tested fails. After the suction test is completed, if the product passes the test, the lifting assembly will descend and connect the first connecting member with the second connecting member. Then, it will continue to descend and drive the lifting block to separate from the lower end surface of the loading platform. The device is simple to operate and easy to use. It not only has high detection efficiency, but also greatly reduces the labor intensity of workers, thereby reducing the error rate.

[0010] Preferably, the lifting assembly includes a support plate, a cylinder and a pneumatic switch, wherein the cylinder is fixedly connected to the bracket, the support plate is connected to the output end of the cylinder, and the pneumatic switch is arranged on the air path of the cylinder to control the switch of the cylinder air path and drive the lifting or lowering of the support plate through the cylinder;

[0011] The supporting plate is provided with a square hole for the lifting weight to pass through, and the second connecting member is arranged on the inner peripheral wall of the square hole; the first connecting member is arranged on the outer peripheral wall of the lifting weight and corresponds to the position of the second connecting member.

[0012] Preferably, the first connecting member includes an inclined slider and a first spring; a radially extending slide is provided on the outer peripheral wall of the lifting weight, and the inclined slider is slidably connected to the slide; the first spring is arranged in the slide, and one end thereof is connected to the inner wall of the slide, and the other end is connected to the inclined slider; the free end of the inclined slider can extend or retract into the slide, and the lower end of the free end of the inclined slider is set as an inclined surface; in the initial state, the free end of the inclined slider extends out of the slide.

[0013] When the support plate of the lifting assembly rises, the upper end surface of the second connecting member abuts against the lower end surface of the inclined sliding block, thereby driving the lifting weight block to rise; after the lifting weight block abuts against the lower end surface of the loading platform, the support plate continues to lift. At this time, the lifting weight block cannot move up, and the second connecting member will push it into the slide through the inclined surface of the inclined sliding block. The second connecting member will not be disconnected from the first connecting member until the second connecting member moves up to the top of the inclined sliding block; then, the free end of the inclined sliding block extends out of the slide again under the elastic force of the first spring, preparing for the subsequent separation of the lifting weight block from the lower end surface of the loading platform.

[0014] Preferably, the second connecting member includes a flip block and a second spring; a groove is provided on the inner wall of the square hole, one end of the flip block can be rotatably connected in the groove, and the other end can extend out of or retract into the groove; the second spring is arranged in the groove, and one end of the spring is connected to the upper inner wall of the groove, and the other end is connected to the upper side wall of the flip block, for forcing the free end of the flip block to extend out of the groove. In the initial state, the free end of the flip block extends out of the groove and is located directly below the inclined sliding block; a limiting column is provided on the bracket, and the limiting column is located directly below the square hole, for abutting against the bottom of the lifting block.

[0015] After the inspection is completed, the support plate will drop, so that the free end of the flip block will be against the free end of the inclined slider, and then the support plate will continue to drop, so that the weight block will be separated from the lower end surface of the loading platform; after the weight block is separated from the lower end surface of the loading platform, the weight block will fall on the limit column, and the support plate will continue to drop at this time. After overcoming the elastic force of the second spring, the free end of the flip block will retract into the groove, and after the flip block moves down to the bottom of the inclined slider, under the elastic force of the second spring, the free end of the flip block will extend out of the groove again, and thus return to its initial state, which is convenient for the next inspection.

[0016] Preferably, there are four first connecting members evenly spaced on the outer wall of the lifting weight, and there are four second connecting members, one corresponding to each of the four first connecting members. This can make the force between the lifting weight and the lifting assembly more uniform.

[0017] Preferably, a positioning groove is provided in the square hole, and a positioning column is provided on the outer peripheral wall of the lifting weight block, which matches the positioning groove and extends along the height direction of the lifting weight block, and the positioning column is slidably connected in the positioning groove.

[0018] Preferably, the bracket is provided with a plurality of guide columns extending vertically upward, and the loading platform is connected to the top of the guide columns; the support plate is provided with guide holes for the guide columns to pass through, and the support plate is slidably connected to the guide columns and is arranged parallel to the loading platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 It is a cross-sectional view of the present utility model.

[0021] Figure 3 for Figure 2 A partial enlarged view of .

[0022] Figure 4 It is a structural schematic diagram of the middle support plate of the present utility model.

[0023] Figure 5It is a structural diagram of the lifting weight block in the utility model.

[0024] Description of reference numerals:

[0025] 1. Bracket, 11. Guide column, 12. Limit column, 2. Loading platform, 3. Suction detection mechanism, 31. Lifting block, 311. Slide, 312. Positioning column, 32. Lifting assembly, 321. Support plate, 3211. Square hole, 3212. Groove, 3213. Guide hole, 3214. Positioning slot, 322. Cylinder, 323. Pneumatic switch, 33. First connecting member, 331. Inclined slider, 332. First spring, 34. Second connecting member, 341. Flip block, 342. Second spring. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. At the same time, the terms "first", "second", etc. are only used to distinguish the names of the components, and there is no primary and secondary relationship, and therefore cannot be understood as a limitation on the present invention.

[0028] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown; the utility model discloses a magnetic attraction detection device: it includes a bracket 1 and a loading platform 2 and a suction detection mechanism 3 connected to the bracket 1, the loading platform 2 is used to carry the product to be detected, and the suction detection mechanism 3 is located below the loading platform 2 and is used to detect the suction of the product to be detected.

[0029] The suction detection mechanism 3 includes a lifting weight 31 and a lifting assembly 32. The lifting weight 31 is provided with a first connecting member 33, and the lifting assembly 32 is provided with a second connecting member 34. In the initial state, the first connecting member 33 is located above the second connecting member 34 and abuts against the second connecting member 34; the lifting assembly 32 is used to lift the lifting weight 31. After the lifting weight 31 abuts against the lower end surface of the worktable 2, it continues to lift and make the first connecting member 33 located below the second connecting member 34. At this time, the first connecting member 33 is disengaged from the second connecting member 34; after the suction detection is completed, the lifting assembly 32 descends, so that the first connecting member 33 abuts against the second connecting member 34 again, and then continues to descend and drives the lifting weight 31 to separate from the lower end surface of the worktable 2.

[0030] When the present invention is conducting a magnetic attraction test, it is only necessary to drive the lifting block 31 upwards through the lifting assembly 32 so that the lifting block 31 abuts against the lower end surface of the loading platform 2. At this time, the lifting block 31 will be magnetically attracted to the product to be tested on the loading platform 2; then the lifting assembly 32 continues to lift and separates the first connecting member 33 from the second connecting member 34. At this time, the lifting block 31 is completely suspended on the lower end surface of the loading platform 2 by the magnetic attraction. If the lifting block 31 does not fall, it means that the magnetic attraction of the product to be tested meets the requirements. If the lifting block 31 falls, it means that the magnetic attraction of the product to be tested fails. After the suction test is completed, if the product is qualified, the lifting assembly 32 will descend and connect the first connecting member 33 with the second connecting member 34, and then continue to descend and drive the lifting block 31 to separate from the lower end surface of the loading platform 2. The device is simple to operate and easy to use. It not only has high detection efficiency, but also greatly reduces the labor intensity of workers, thereby reducing the error rate.

[0031] The lifting assembly 32 includes a support plate 321, a cylinder 322 and a pneumatic switch 323. The cylinder 322 is fixedly connected to the bracket 1, the support plate 321 is connected to the output end of the cylinder 322, and the pneumatic switch 323 is arranged on the air path of the cylinder 322, and is used to control the switch of the air path of the cylinder 322, and drive the support plate 321 to be lifted or lowered through the cylinder 322; the air path of the cylinder 322 is connected to an external air source.

[0032] The supporting plate 321 is provided with a square hole 3211 for the lifting weight 31 to pass through, and the second connecting member 34 is arranged on the inner peripheral wall of the square hole 3211; the first connecting member 33 is arranged on the outer peripheral wall of the lifting weight 31 and corresponds to the position of the second connecting member 34.

[0033] The first connecting member 33 includes an inclined slider 331 and a first spring 332; a radially extending slide 311 is provided on the outer peripheral wall of the lifting weight 31, and the inclined slider 331 is slidably connected in the slide 311; the first spring 332 is arranged in the slide 311, and one end thereof is connected to the inner wall of the slide 311, and the other end is connected to the inclined slider 331; the free end of the inclined slider 331 can extend or retract into the slide 311, and the lower end of the free end of the inclined slider 331 is set as an inclined surface; in the initial state, the free end of the inclined slider 331 extends out of the slide 311.

[0034] The second connecting member 34 includes a flip block 341 and a second spring 342; a groove 3212 is provided on the inner wall of the square hole 3211, one end of the flip block 341 can be rotatably connected in the groove 3212, and the other end can extend out of or retract into the groove 3212; the second spring 342 is arranged in the groove 3212, and one end of it is connected to the upper inner wall of the groove 3212, and the other end is connected to the upper side wall of the flip block 341, used to force the free end of the flip block 341 to extend out of the groove 3212. In the initial state, the free end of the flip block 341 extends out of the groove 3212 and is located directly below the inclined slider 331; a limiting column 12 is provided on the bracket 1, and the limiting column 12 is located directly below the square hole 3211, and is used to resist the bottom of the lifting block 31.

[0035] In the initial state, the free end of the flip block 341 is located directly below the free end of the inclined slider 331;

[0036] When the lifting plate 321 is lifted, the upper end surface of the free end of the flip block 341 abuts against the lower end surface of the free end of the inclined sliding block 331, thereby driving the lifting weight block 31 to rise (the gravity of the lifting weight block 31 is not enough to retract the inclined sliding block 331 into the slideway 311); after the lifting weight block 31 abuts against the lower end surface of the loading platform 2, the supporting plate 321 continues to lift. At this time, the lifting weight block 31 cannot move up, and the flip block 341 will push it into the slideway 311 through the inclined surface of the inclined sliding block 331 and continue to move up. Until the flip block 341 moves up to the top of the inclined sliding block 331, the flip block 341 disengages from the abutment with the inclined sliding block 331; then, the free end of the inclined sliding block 331 extends out of the slideway 311 again under the elastic force of the first spring 332, preparing for the subsequent separation of the lifting weight block 31 from the lower end surface of the loading platform 2.

[0037] After the inspection is completed, the support plate 321 will drop, so that the free end of the flip block 341 will abut against the free end of the inclined slider 331, and then the support plate 321 will continue to drop, so that the lifting weight 31 will separate from the lower end surface of the loading platform 2; after the lifting weight 31 separates from the lower end surface of the loading platform 2, the lifting weight 31 will fall on the limit column 12 under the action of its own weight. At this time, the support plate 321 continues to drop, and after overcoming the elastic force of the second spring 342, the free end of the flip block 341 retracts into the groove 3212 and continues to move downward until the flip block 341 is located below the inclined slider 331. At this time, under the elastic force of the second spring 342, the free end of the flip block 341 extends out of the groove 3212 again, and thus returns to its initial state, which is convenient for the next inspection.

[0038] There are four first connecting members 33, which are evenly spaced on the outer wall of the lifting block 31; there are also four second connecting members 34, which correspond one-to-one to the four first connecting members 33, so that the force between the lifting block 31 and the lifting assembly 32 can be more uniform.

[0039] A positioning groove 3214 is provided in the square hole 3211 , and a positioning column 312 is provided on the outer peripheral wall of the lifting weight 31 , which matches the positioning groove 3214 and extends along the height direction of the lifting weight 31 . The positioning column 312 is slidably connected in the positioning groove 3214 .

[0040] The bracket 1 is provided with several guide columns 11 extending vertically upward, and the loading platform 2 is connected to the top of the guide columns 11; the support plate 321 is provided with guide holes 3213 for the guide columns 11 to pass through, and the support plate 321 is slidably connected to the guide columns 11 and is arranged parallel to the loading platform 2.

[0041] The above is only a specific implementation method of the present invention, but the scope of protection of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A magnetic attraction detection device, characterized in that: The device comprises a bracket (1), a loading platform (2) connected to the bracket (1), and a suction detection mechanism (3), wherein the loading platform (2) is used to carry the product to be detected, and the suction detection mechanism (3) is located below the loading platform (2) and is used to detect the suction of the product to be detected; The suction detection mechanism (3) includes a weight block (31) and a lifting assembly (32), wherein the weight block (31) is provided with a first connecting member (33), and the lifting assembly (32) is provided with a second connecting member (34). In an initial state, the first connecting member (33) is located above the second connecting member (34) and abuts against the second connecting member (34); the lifting assembly (32) is used to lift the weight block (31), and after the weight block (31) abuts against the lower end surface of the loading platform (2), the lifting assembly (32) continues to lift so that the first connecting member (33) is located below the second connecting member (34) and is disengaged from the abutment with the second connecting member (34); after the suction detection is completed, the lifting assembly (32) descends, so that the first connecting member (33) abuts against the second connecting member (34), and then continues to descend and drives the weight block (31) to separate from the lower end surface of the loading platform (2).

2. The magnetic attraction detection device according to claim 1, characterized in that: The lifting assembly (32) includes a support plate (321), a cylinder (322) and a pneumatic switch (323), wherein the cylinder (322) is fixedly connected to the bracket (1), the support plate (321) is connected to the output end of the cylinder (322), and the pneumatic switch (323) is arranged on the air path of the cylinder (322) and is used to control the opening and closing of the air path of the cylinder (322) and drive the support plate (321) to be lifted or lowered through the cylinder (322); The supporting plate (321) is provided with a square hole (3211) for the lifting weight (31) to pass through, and the second connecting member (34) is arranged on the inner peripheral wall of the square hole (3211); the first connecting member (33) is arranged on the outer peripheral wall of the lifting weight (31) and corresponds to the position of the second connecting member (34).

3. The magnetic attraction detection device according to claim 2, characterized in that: The first connecting member (33) includes an inclined slider (331) and a first spring (332); a radially extending slideway (311) is provided on the outer peripheral wall of the lifting weight (31), and the inclined slider (331) is slidably connected in the slideway (311); the first spring (332) is arranged in the slideway (311), and one end thereof is connected to the inner wall of the slideway (311), and the other end is connected to the inclined slider (331); the free end of the inclined slider (331) can extend or retract into the slideway (311), and the lower end of the free end of the inclined slider (331) is set as an inclined surface; in the initial state, the free end of the inclined slider (331) extends out of the slideway (311).

4. The magnetic attraction force detection device according to claim 3, characterized in that: The second connecting member (34) includes a flip block (341) and a second spring (342); a groove (3212) is provided on the inner peripheral wall of the square hole (3211), one end of the flip block (341) can be rotatably connected in the groove (3212), and the other end can extend out of or retract into the groove (3212); the second spring (342) is arranged in the groove (3212), and one end thereof is connected to the upper inner wall of the groove (3212), and the other end is connected to the upper side wall of the flip block (341), and is used to force the free end of the flip block (341) to extend out of the groove (3212). In the initial state, the free end of the flip block (341) extends out of the groove (3212) and is located directly below the inclined sliding block (331); a limiting column (12) is provided on the bracket (1), and the limiting column (12) is located directly below the square hole (3211) and is used to abut against the bottom of the lifting block (31).

5. The magnetic attraction detection device according to claim 4, characterized in that: There are four first connecting members (33) which are evenly spaced and distributed on the outer peripheral wall of the lifting weight (31); there are also four second connecting members (34) which correspond one to one to the four first connecting members (33).

6. The magnetic attraction force detection device according to claim 5, characterized in that: A positioning groove (3214) is provided in the square hole (3211), and a positioning column (312) is provided on the outer peripheral wall of the lifting weight (31) and matches the positioning groove (3214) and extends along the height direction of the lifting weight (31). The positioning column (312) is slidably connected in the positioning groove (3214).

7. The magnetic attraction detection device according to claim 6, characterized in that: The bracket (1) is provided with a plurality of guide columns (11) extending vertically upward, and the loading platform (2) is connected to the top of the guide columns (11); the support plate (321) is provided with guide holes (3213) for the guide columns (11) to pass through, and the support plate (321) is slidably connected to the guide columns (11) and is arranged parallel to the loading platform (2).

Images