Magnet and shell batch mounting jig and method

Abstract

The invention relates to a magnet and shell batch mounting jig and method, the magnet and shell batch mounting jig comprises a positioning sleeve and a power column, a plurality of material carrying grooves for carrying magnets are formed in the peripheral side surface of the positioning sleeve, the interior of the positioning sleeve is hollow, and an annular limiting ring for limiting the shell is arranged in the middle of the positioning sleeve; the bottom face of the material carrying groove is provided with an adsorption magnet for adsorbing the magnet and provided with an open groove communicating with the interior of the positioning sleeve. The power column penetrates into the positioning sleeve; two positioning blocks are symmetrically distributed at the lower end of the positioning sleeve in a sliding mode, the two positioning blocks are in linkage through a gear and a rack to synchronously and reversely move, the two positioning blocks are kept in an open state through first elastic reset pieces in the initial state, and guide slopes for guiding the shell are arranged on the positioning blocks. According to the novel jig, batch mounting of magnets can be achieved, mounting precision can be well guaranteed by means of the two movable positioning blocks, in addition, the jig does not need an additional driving mechanism to provide driving force, cost is greatly reduced, and the overall size is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of motor processing, and more specifically to a magnet and housing batch mounting jig and method. Background Art

[0002] The motor processing procedure involves the mounting operation of magnets and housings. This operation is usually divided into the following two methods. One is to form multiple positioning grooves on the housing, and then insert the magnets into the corresponding positioning grooves during assembly. The other is to use glue to apply glue on the surface of the magnets and then mount them inside the housing. Of these two methods, the former requires relatively complex processing of the housing, and the magnets need to be fixed after being installed to prevent them from loosening. The process is more complicated, so the latter method is more commonly used in actual production.

[0003] At present, when the gluing method is used for processing, it is usually necessary to position the shell first, and then after the robot sucks the magnet and moves it to the gluing assembly for gluing, it is inserted into the corresponding mounting position of the shell for mounting and pressing. The processing efficiency is low and the precision requirement is very high. There is a need for a magnet and shell batch mounting fixture and method that can improve the mounting efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a magnet and housing batch mounting jig and method in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A magnet and shell batch mounting jig is constructed, which includes a positioning sleeve and a power column. A plurality of loading grooves for carrying magnets are formed on the peripheral side surface of the positioning sleeve. The interior of the positioning sleeve is hollow and a ring-shaped limiting ring for limiting the shell is arranged in the middle; an adsorption magnet for adsorbing magnets is arranged on the bottom surface of the loading groove and a slot communicating with the interior of the positioning sleeve is opened; the power column penetrates into the interior of the positioning sleeve; two positioning blocks are symmetrically and slidably distributed on the lower end of the positioning sleeve, and the two positioning blocks are synchronously moved in opposite directions through the linkage of a gear rack. The two positioning blocks are kept in an open state by a first elastic reset member in an initial state, and a guide for guiding the shell is arranged on the positioning block. Guide inclined surface; the power column includes a driving sleeve and a guide column, the driving sleeve is provided with extrusion blocks corresponding to the slots one by one, and multiple extrusion blocks can be driven by the guide column to move laterally to extrude the magnets in the loading trough; the guide column is also used to guide the driving sleeve, and the fixture also includes a second elastic reset member for resetting the driving sleeve; the guide column is provided with a receiving groove for accommodating the gear rack, and a limiting column is provided on the rack of the gear rack, and the inner wall of the receiving groove is provided with an L-shaped groove cooperating with the limiting column, and when the two positioning blocks are squeezed by the shell to the minimum spacing state, the limiting column enters the longitudinal edge of the corresponding L-shaped groove.

[0007] The magnet and shell batch mounting jig described in the present invention, wherein the gear rack includes a gear and two transverse racks respectively fixed to two positioning blocks; the two racks are arranged side by side transversely and tooth grooves are arranged on the opposite side surfaces; the gear is located between the two racks and meshes with both racks.

[0008] In the jig for batch mounting magnets and shells of the present invention, a rotating key shaft passing through the gear is rotatably arranged in the accommodating groove, and the gear and the rotating key shaft are spline-matched.

[0009] The magnet and housing batch mounting jig of the present invention comprises a first bevel gear ring and a second bevel gear ring provided on the outer surface of the gear, the tooth grooves are helical tooth grooves and the two tooth grooves are respectively meshed with the first bevel gear ring and the second bevel gear ring.

[0010] The magnet and shell batch mounting jig described in the present invention, wherein the first elastic reset member is a clockwork spring arranged on the rotating key shaft, the bottom surface of the accommodating groove is provided with a groove for accommodating the clockwork spring, one end of the clockwork spring is fixedly connected to the rotating key shaft, and the other end is fixedly connected to the inner wall of the groove.

[0011] The magnet and shell batch mounting jig described in the present invention, wherein the driving sleeve is longitudinally slidably sleeved on the guide column, a plurality of the extrusion blocks are transversely movably penetrated on the driving sleeve, a wedge-shaped groove is provided on the inner surface of the extrusion block, and a wedge-shaped slider cooperating with the wedge-shaped groove is provided on the guide column.

[0012] In the magnet and shell batch mounting jig of the present invention, the second elastic reset member is a spring and is arranged at the top end of the driving sleeve, and the spring is connected to the inner top of the positioning sleeve.

[0013] The magnet and shell batch mounting jig described in the present invention, wherein the jig also includes a base, the upper surface of the base is provided with a mounting groove, the power column is installed in the mounting groove, the upper end of the positioning sleeve extends out of the mounting groove, and the lower end is longitudinally slidably arranged in the mounting groove.

[0014] In the magnet and shell batch mounting jig of the present invention, the positioning sleeve and the power column form a group of units, and a plurality of groups of the units are arranged on the base.

[0015] A method for batch mounting of magnets and shells, using the above-mentioned batch mounting jig for magnets and shells, wherein the method comprises the steps of:

[0016] In the initial state, the limiting column is located at the lateral edge of the corresponding L-shaped groove, the guide column and the positioning sleeve do not move relative to each other, and the two positioning blocks remain in the open state in the first elastic reset member;

[0017] The magnets are loaded one by one into the respective loading slots on the peripheral surface of the positioning sleeve, and the magnets are adsorbed and prevented from falling off by the adsorption magnets, and the outer surface of the magnets is coated with glue;

[0018] After clamping the shell, move it to the top of the positioning sleeve, and then put the shell on the positioning sleeve from top to bottom, and during the putting process, ensure that the inner wall of the shell does not contact the glue on the outer surface of the magnet;

[0019] When the housing moves downward and contacts the two positioning blocks, it will squeeze the corresponding guiding inclined surfaces on the positioning blocks. Under the linkage of the gear magnetic strip, the two positioning blocks will move in opposite directions synchronously and shrink inward, and the first elastic reset member will be compressed.

[0020] When the housing contacts the limiting ring, the two positioning blocks are squeezed by the housing and move to the minimum spacing state, and the limiting column enters the longitudinal edge of the corresponding L-shaped groove. At this time, the guide column and the positioning sleeve can move relative to each other;

[0021] The housing continues to move downward, driving the positioning sleeve and the driving sleeve of the power column to move downward, and the guide column drives the multiple extrusion blocks to move horizontally synchronously to squeeze the magnet in the loading groove, so that the magnet is attached to the inner wall of the housing, and the second elastic reset member is compressed;

[0022] After maintaining the pressure state for a set period of time, the shell after the magnet is mounted is driven upward, the second elastic reset member drives the drive sleeve to reset, the first elastic reset member drives the two positioning blocks to reset, the limit column enters the lateral edge of the corresponding L-shaped groove, and the guide column and the positioning sleeve return to the locked state.

[0023] The beneficial effects of the present invention are as follows: in the initial state, the limit post is located at the lateral edge of the corresponding L-shaped groove, the guide post and the positioning sleeve do not move relative to each other, and the two positioning blocks remain in an open state at the first elastic reset part; the magnets are loaded one by one into the various loading grooves on the peripheral surface of the positioning sleeve, and adsorbed and prevented from falling off by the adsorption magnet, and the outer surface of the magnet is coated with glue; after clamping the shell, it is moved to the top of the positioning sleeve, and then the shell is sleeved on the positioning sleeve from top to bottom, and during the sleeve process, it is ensured that the inner wall of the shell and the glue on the outer surface of the magnet do not contact; after the shell moves down and contacts the two positioning blocks, it will squeeze the corresponding guiding inclined surfaces on the positioning blocks, and the two positioning blocks will move inward synchronously in the opposite direction under the linkage action of the gear magnetic strip, and the first The elastic reset part is compressed; when the shell contacts the limit ring, the two positioning blocks are squeezed by the shell and move to the minimum spacing state, and the limit column enters the longitudinal edge of the corresponding L-shaped groove. At this time, the guide column and the positioning sleeve can move relatively; the shell continues to move downward to drive the positioning sleeve and the driving sleeve of the power column to move downward, and the guide column drives multiple extrusion blocks to move horizontally synchronously to squeeze the magnet in the loading groove, so that the magnet is attached to the inner wall of the shell, and the second elastic reset part is compressed; after maintaining the pressure state for a set period of time, the shell with the magnet attached is driven to move upward, the second elastic reset part drives the driving sleeve to reset, the first elastic reset part drives the two positioning blocks to reset, the limit column enters the lateral edge of the corresponding L-shaped groove, and the guide column and the positioning sleeve return to the locked state;

[0024] The application of the new fixture of the present application can not only realize batch placement of magnets, but also rely on two movable positioning blocks to well ensure the placement accuracy. In addition, the fixture does not require an additional driving mechanism to provide driving force, but only needs a manipulator that clamps the shell to move, which greatly reduces the demand for power and corresponding control requirements, greatly reduces costs and reduces the overall volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0026] Figure 1 It is a schematic diagram of the structure of a magnet and shell batch mounting jig according to a preferred embodiment of the present invention;

[0027] Figure 2 It is a schematic diagram of the structure of a magnet and housing batch mounting jig drive sleeve and a guide column in a preferred embodiment of the present invention;

[0028] Figure 3 It is a cross-sectional view of the assembly structure of the gear rack and guide column of the magnet and housing batch mounting jig of the preferred embodiment of the present invention;

[0029] Figure 4 It is a top view of the gear rack of the magnet and shell batch mounting jig of the preferred embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0031] The magnet and shell batch mounting jig of the preferred embodiment of the present invention is as follows: Figure 1 See also Figure 2-Figure 4 , including a positioning sleeve 1 and a power column 2, a plurality of loading grooves 10 carrying magnets are formed on the peripheral surface of the positioning sleeve 1, the interior of the positioning sleeve 1 is hollow and a ring-shaped limiting ring 11 for limiting the shell is arranged in the middle (a glue overflow groove 110 can be arranged on the limiting ring 11 to receive a small amount of glue that accidentally flows down); an adsorption magnet for adsorbing magnets is arranged on the bottom surface of the loading groove 10 and a slot 101 communicating with the interior of the positioning sleeve 1 is opened; the power column 2 penetrates into the interior of the positioning sleeve 1; two positioning blocks 12 are symmetrically and slidably distributed on the lower end of the positioning sleeve 1, and the two positioning blocks 12 are synchronously and reversely moved by the gear rack 5. The two positioning blocks 12 are kept in an open state by the first elastic reset member 6 in the initial state, and a guide for guiding the shell is arranged on the positioning block 12. The guide bevel 120; the power column 2 includes a driving sleeve 20 and a guide column 21, and the driving sleeve 20 is provided with extrusion blocks 200 corresponding to the slots 101 one by one, and multiple extrusion blocks 200 can be driven by the guide column 21 to move laterally to extrude the magnet in the loading trough 10; the guide column 21 is also used to guide the driving sleeve 20, and the fixture also includes a second elastic reset member 7 for resetting the driving sleeve 20; the guide column 21 is provided with a receiving groove 210 for accommodating a gear rack, and a limiting column 500 is provided on the rack of the gear rack 5, and the inner wall of the receiving groove 210 is provided with an L-shaped groove 211 that cooperates with the limiting column 500. When the two positioning blocks 12 are squeezed by the shell to the minimum spacing state, the limiting column 500 enters the longitudinal edge of the corresponding L-shaped groove 211;

[0032] In the initial state, the limiting column 500 is located at the lateral edge of the corresponding L-shaped groove 211, the guide column 21 and the positioning sleeve 1 do not move relative to each other (i.e., locked state), and the two positioning blocks 12 remain in the open state on the first elastic reset member 6; the magnets are loaded one by one into the respective loading grooves 10 on the peripheral surface of the positioning sleeve 1, and the magnets are adsorbed and prevented from falling off, and the outer surface of the magnets is coated with glue (the coating is completed by the existing glue coating assembly);

[0033] (The manipulator) clamps the shell and moves to the top of the positioning sleeve 1, then sleeves the shell on the positioning sleeve 1 from top to bottom, and ensures that the inner wall of the shell does not contact the glue on the outer surface of the magnet during the sleeve installation process; after the shell moves down and contacts the two positioning blocks 12, it will squeeze the corresponding guiding inclined surfaces 120 on the positioning blocks 12, and the two positioning blocks 12 will synchronously move inward in the opposite direction under the linkage action of the gear magnetic strip 5, and the first elastic reset member 6 will be compressed; when the shell contacts the limiting ring 11, the two positioning blocks 12 are squeezed by the shell and move to the minimum spacing state, and the limiting column 500 enters the longitudinal edge of the corresponding L-shaped groove 211, and at this time the guide column 21 and the positioning sleeve 1 can move relative to each other (i.e., unlocked state);

[0034] The housing continues to move downward, driving the positioning sleeve 1 and the driving sleeve 20 of the power column to move downward, and the guide column 21 (moving relative to the driving sleeve 20) drives the multiple extrusion blocks 200 to synchronously move laterally to extrude the magnets in the loading slot 10, so that the magnets are attached to the inner wall of the housing, and the second elastic reset member 7 is compressed;

[0035] After the pressure state is maintained for a set time, the housing with the magnet mounted thereon is driven upward, the second elastic reset member 7 drives the driving sleeve 20 to reset, the first elastic reset member 6 drives the two positioning blocks 12 to reset, the limiting column 500 enters the lateral edge of the corresponding L-shaped groove 211, and the guide column 21 and the positioning sleeve 1 return to the locked state;

[0036] The application of the new fixture of the present application can not only realize batch placement of magnets, but also rely on two movable positioning blocks to well ensure the placement accuracy. In addition, the fixture does not require an additional driving mechanism to provide driving force, but only needs a manipulator that clamps the shell to move, which greatly reduces the demand for power and corresponding control requirements, greatly reduces costs and reduces the overall volume.

[0037] Preferably, the gear rack 5 includes a gear 51 and two transverse racks 50 respectively fixed to two positioning blocks 12; the two racks 50 are arranged side by side transversely and tooth grooves are arranged on the surfaces of opposite sides; the gear 51 is located between the two racks 50 and meshes with both racks 50; a rotating key shaft 212 passing through the gear 51 is rotatably arranged in the accommodating groove 210, and the gear 51 and the rotating key shaft 212 are spline-matched; the outer surface of the gear 51 is provided with a first bevel gear ring 510 and a second bevel gear ring 511, the tooth grooves are helical tooth grooves and the two tooth grooves are respectively meshed with the first bevel gear ring 510 and the second bevel gear ring 511;

[0038] By adopting this structural design, the two tooth grooves are respectively engaged with the first bevel gear ring 510 and the second bevel gear ring 511, so that the upper and lower limits of the middle gear 51 can be well set. At the same time, the spline cooperation between the gear 51 and the rotating key shaft 212 is used to limit the gear 51 circumferentially. While improving reliability, the space utilization rate will be higher and the volume will be small, ensuring the smooth linkage of the two positioning blocks 12 without affecting the relative movement between the guide column 21 and the positioning sleeve 1.

[0039] Preferably, the first elastic return member 6 is a clockwork spring arranged on the rotating key shaft 212, and the bottom surface of the accommodating groove 210 is provided with a groove 213 for accommodating the clockwork spring (a bearing 215 can be provided on the top surface to rotatably connect to the rotating key shaft 212, and a bearing can be provided on the bottom surface to rotatably connect to the rotating key shaft 212), one end of the clockwork spring is fixedly connected to the rotating key shaft 212, and the other end is fixedly connected to the inner wall of the groove 213; it can cooperate well with the gear rack structure to ensure the elastic return effect while taking into account the space utilization.

[0040] Preferably, the drive sleeve 20 is longitudinally slidably sleeved on the guide column 21, and a plurality of extrusion blocks 200 are transversely movably penetrated on the drive sleeve 20, the inner surface of the extrusion block 200 is provided with a wedge-shaped groove 201, and the guide column 21 is provided with a wedge-shaped slider 214 cooperating with the wedge-shaped groove 201; the second elastic reset member 7 is a spring and is arranged at the top end of the drive sleeve 20, and the spring is connected to the inner top of the positioning sleeve 1; in this structure, a movable drive sleeve 20 design is adopted to facilitate buffering and reduce hard contact between components, while taking into account the pressure-maintaining effect of elastically pressing the magnet against the inner wall of the shell.

[0041] Preferably, the fixture also includes a base 8, the upper surface of the base 8 is provided with a mounting groove, the power column 2 is installed in the mounting groove, the upper end of the positioning sleeve 1 extends out of the mounting groove, and the lower end is longitudinally slidably set in the mounting groove; the positioning sleeve 1 and the power column 2 constitute a group of units, and multiple groups of units are arranged on the base 8; it is convenient to perform multi-station mounting.

[0042] A method for batch mounting of magnets and shells, using the above-mentioned batch mounting fixture for magnets and shells, wherein the method comprises the steps of:

[0043] In the initial state, the limiting column is located at the lateral edge of the corresponding L-shaped groove, the guide column and the positioning sleeve do not move relative to each other, and the two positioning blocks remain in the open state in the first elastic reset member;

[0044] The magnets are loaded one by one into the respective loading slots on the peripheral surface of the positioning sleeve, and the magnets are adsorbed and prevented from falling off by the adsorption magnets, and the outer surface of the magnets is coated with glue;

[0045] After clamping the shell, move it to the top of the positioning sleeve, and then put the shell on the positioning sleeve from top to bottom, and during the putting process, ensure that the inner wall of the shell does not contact the glue on the outer surface of the magnet;

[0046] When the housing moves downward and contacts the two positioning blocks, it will squeeze the corresponding guiding inclined surfaces on the positioning blocks. Under the linkage of the gear magnetic strip, the two positioning blocks will move in opposite directions synchronously and shrink inward, and the first elastic reset member will be compressed.

[0047] When the housing contacts the limiting ring, the two positioning blocks are squeezed by the housing and move to the minimum spacing state, and the limiting column enters the longitudinal edge of the corresponding L-shaped groove. At this time, the guide column and the positioning sleeve can move relative to each other;

[0048] The housing continues to move downward, driving the positioning sleeve and the driving sleeve of the power column to move downward, and the guide column drives multiple extrusion blocks to synchronously move laterally to extrude the magnet in the loading slot, so that the magnet is attached to the inner wall of the housing, and the second elastic reset member is compressed;

[0049] After the pressure state is maintained for a set time, the housing with the magnet mounted thereon is driven upward, the second elastic reset member drives the driving sleeve to reset, the first elastic reset member drives the two positioning blocks to reset, the limiting column enters the lateral edge of the corresponding L-shaped groove, and the guide column and the positioning sleeve return to the locked state;

[0050] By applying the method of the present application, not only can batch mounting of magnets be achieved, but the mounting accuracy can be well guaranteed by relying on two movable positioning blocks. In addition, the fixture does not require an additional driving mechanism to provide driving force, but only needs a manipulator that clamps the shell to move, which greatly reduces the demand for power and corresponding control requirements, greatly reduces costs and reduces the overall volume.

[0051] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A magnet and shell batch mounting jig, characterized in that: It comprises a positioning sleeve and a power column, a plurality of loading grooves for carrying magnets are formed on the peripheral surface of the positioning sleeve, the interior of the positioning sleeve is hollow and a ring-shaped limiting ring for limiting the shell is arranged in the middle; the bottom surface of the loading groove is provided with an adsorption magnet for adsorbing magnets and is provided with a slot connected to the interior of the positioning sleeve; the power column penetrates into the interior of the positioning sleeve; two positioning blocks are symmetrically and slidably distributed on the lower end of the positioning sleeve, the two positioning blocks are synchronously moved in opposite directions through the linkage of gear racks, the two positioning blocks are kept in an open state by a first elastic reset member in an initial state, and a guiding inclined surface for guiding the shell is arranged on the positioning block; the power column includes The invention comprises a driving sleeve and a guide column, wherein the driving sleeve is provided with extrusion blocks corresponding to the slots one by one, and a plurality of the extrusion blocks can be driven by the guide column to move laterally to extrude the magnets in the loading slot; the guide column is also used to guide the driving sleeve, and the fixture also includes a second elastic reset member for resetting the driving sleeve; the guide column is provided with a receiving groove for accommodating the gear rack, and a limiting column is provided on the rack of the gear rack, and the inner wall of the receiving groove is provided with an L-shaped groove cooperating with the limiting column, and when the two positioning blocks are squeezed by the shell to the minimum spacing state, the limiting column enters the longitudinal edge of the corresponding L-shaped groove.

2. The magnet and shell batch mounting jig according to claim 1 is characterized in that: The gear rack comprises a gear and two transverse racks respectively fixed to two positioning blocks; the two racks are arranged side by side transversely and tooth grooves are arranged on the opposite side surfaces; the gear is located between the two racks and meshes with the two racks.

3. The magnet and shell batch mounting jig according to claim 2 is characterized in that: A rotating key shaft passing through the gear is rotatably arranged in the accommodating groove, and the gear and the rotating key shaft are matched with each other by splines.

4. The magnet and shell batch mounting jig according to claim 3 is characterized in that: The outer surface of the gear is provided with a first bevel gear ring and a second bevel gear ring, the tooth grooves are helical tooth grooves and the two tooth grooves are respectively meshed with the first bevel gear ring and the second bevel gear ring.

5. The magnet and housing batch mounting jig according to claim 3 is characterized in that: The first elastic return member is a clockwork spring arranged on the rotating key shaft, and the bottom surface of the accommodating groove is provided with a groove for accommodating the clockwork spring. One end of the clockwork spring is fixedly connected to the rotating key shaft, and the other end is fixedly connected to the inner wall of the groove.

6. The magnet and shell batch mounting jig according to claim 1 is characterized in that: The driving sleeve is longitudinally slidably sleeved on the guide column, and a plurality of the extrusion blocks are transversely movably penetrated on the driving sleeve. The inner surface of the extrusion block is provided with a wedge-shaped groove, and the guide column is provided with a wedge-shaped sliding block matched with the wedge-shaped groove.

7. The magnet and shell batch mounting jig according to claim 6 is characterized in that: The second elastic return member is a spring and is arranged on the top end of the driving sleeve. The spring is connected to the inner top of the positioning sleeve.

8. The magnet and shell batch mounting jig according to claim 1 is characterized in that: The fixture also includes a base, the upper surface of the base is provided with a mounting groove, the power column is installed in the mounting groove, the upper end of the positioning sleeve extends out of the mounting groove, and the lower end is longitudinally slidably arranged in the mounting groove.

9. The magnet and shell batch mounting jig according to claim 8, characterized in that: The positioning sleeve and the power column form a group of units, and a plurality of groups of the units are arranged on the base.

10. A method for batch mounting of magnets and shells, using the batch mounting jig for magnets and shells as described in any one of claims 1 to 9, characterized in that: The method comprises the steps of: In the initial state, the limiting column is located at the lateral edge of the corresponding L-shaped groove, the guide column and the positioning sleeve do not move relative to each other, and the two positioning blocks remain in the open state in the first elastic reset member; The magnets are loaded one by one into the respective loading slots on the peripheral surface of the positioning sleeve, and the magnets are adsorbed and prevented from falling off by the adsorption magnets, and the outer surface of the magnets is coated with glue; After clamping the shell, move it to the top of the positioning sleeve, and then put the shell on the positioning sleeve from top to bottom, and during the putting process, ensure that the inner wall of the shell does not contact the glue on the outer surface of the magnet; When the housing moves downward and contacts the two positioning blocks, it will squeeze the corresponding guiding inclined surfaces on the positioning blocks. Under the linkage of the gear magnetic strip, the two positioning blocks will move in opposite directions synchronously and shrink inward, and the first elastic reset member will be compressed. When the housing contacts the limiting ring, the two positioning blocks are squeezed by the housing and move to the minimum spacing state, and the limiting column enters the longitudinal edge of the corresponding L-shaped groove. At this time, the guide column and the positioning sleeve can move relative to each other; The housing continues to move downward, driving the positioning sleeve and the driving sleeve of the power column to move downward, and the guide column drives the multiple extrusion blocks to move horizontally synchronously to squeeze the magnet in the loading groove, so that the magnet is attached to the inner wall of the housing, and the second elastic reset member is compressed; After maintaining the pressure state for a set period of time, the shell after the magnet is mounted is driven upward, the second elastic reset member drives the drive sleeve to reset, the first elastic reset member drives the two positioning blocks to reset, the limit column enters the lateral edge of the corresponding L-shaped groove, and the guide column and the positioning sleeve return to the locked state.

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