Auxiliary device for bonding the housing and magnetic tiles

Abstract

The present invention relates to the field of motor assembly, and particularly relates to an auxiliary device for bonding a motor housing and a permanent magnet. An auxiliary device for bonding a motor housing and a permanent magnet includes a press and a housing positioning seat. The press includes a pressing block. A vertically arranged lifting rod is provided below the pressing block. The lifting rod is supported on the housing positioning seat through an elastic member. A plurality of push plates are arranged on the circumferential side of the lifting rod. The push plates are slidably matched with the housing positioning seat along the radial direction of the lifting rod. The lifting rod moves up and down to enable the push plates to horizontally move along the radial direction of the lifting rod. One side of the push plate away from the lifting rod has a contact surface for contacting the permanent magnet. The pressing block has a first pressing portion for applying force to the lifting rod and a second pressing portion for applying force to the permanent magnet located on the side of the push plate. The present invention has the advantages of being able to maintain the position of the permanent magnet during bonding, avoiding the deviation of the fixed position of the permanent magnet from the set position, improving the installation accuracy of the permanent magnet, and facilitating the fixation of the permanent magnet and the housing.

Description

Technical Field

[0001] The present invention relates to the field of motor assembly, and particularly to an auxiliary device for bonding a housing and a permanent magnet. Background Art

[0002] Chinese Patent with application number 201911043305.X discloses a magnetic tile pressing tooling in stator assembly. By rotating an adjusting screw rod, the movement of a first pressing block and a second pressing block is realized to press a permanent magnet against the inner wall of a housing, so as to facilitate the bonding of the housing and the permanent magnet.

[0003] For a motor with a relatively long axial length, at least two layers of permanent magnets are arranged along the axial direction inside its housing. There is a problem of like poles repelling each other between adjacent two layers of permanent magnets, and the adjacent two layers of permanent magnets cannot fit well together, resulting in the position of the fixed permanent magnet deviating from the set position. Summary of the Invention

[0004] The object of the present invention is to provide an auxiliary device for bonding a housing and a permanent magnet that can hold the position of the permanent magnet to facilitate the fixation of the permanent magnet and the housing, so as to avoid the fixed position of the permanent magnet deviating from the set position.

[0005] To achieve the above object, the present invention adopts the following technical scheme: An auxiliary device for bonding a housing and a permanent magnet includes a press and a housing positioning seat. The press includes a pressing block. A vertically arranged lifting rod is provided below the pressing block. The lifting rod is supported on the housing positioning seat through an elastic member. A plurality of push plates are arranged on the circumferential side of the lifting rod. The push plates are slidably matched with the housing positioning seat along the radial direction of the lifting rod. The lifting rod moves up and down to make the push plates move horizontally along the radial direction of the lifting rod. The side of the push plate away from the lifting rod has a contact surface for contacting the permanent magnet. The pressing block has a first pressing portion for applying force to the lifting rod and a second pressing portion for applying force to the permanent magnet on the side of the push plate.

[0006] When the device of the present invention is used, at least two layers of permanent magnets are placed on the housing positioning seat, and then the housing is placed on the housing positioning seat. At this time, the permanent magnet is located between the contact surface of the push plate and the inner wall of the housing. Subsequently, the press is started, and the pressing block moves downward to make the lifting rod move downward, so that the push plate moves toward the inner wall side of the housing, so that the permanent magnet is pressed between the contact surface of the push plate and the inner wall of the housing, and the permanent magnet is pressed between the pressing block and the housing positioning seat to limit the up and down movement of the permanent magnet, so as to avoid the upper permanent magnet shifting upward under the repelling force of the lower permanent magnet. The present invention has the advantages of being able to maintain the position of the permanent magnet during bonding, avoiding the fixed position of the permanent magnet deviating from the set position, improving the installation accuracy of the permanent magnet, and facilitating the fixation of the permanent magnet and the housing.

[0007] Preferably, at least two isolation blocks are provided on the circumferential side of the lifting rod, each push plate is located between two adjacent isolation blocks, and the isolation blocks are fixed to the housing positioning seat. When the magnetic steel is placed, the magnetic steel is located between two adjacent isolation blocks, and the isolation blocks of the present invention are used to limit the movement of the magnetic steel along the circumference of the housing.

[0008] Preferably, a linkage block is connected between the lifting rod and the push plate, the upper end of the linkage block is rotatably fixed to the lifting rod, and the lower end of the linkage block is rotatably fixed to the push plate, when the lifting rod moves downward, the upper end of the linkage block moves downward, and the lower end of the linkage block moves away from the lifting rod along the radial direction of the lifting rod. The above arrangement is used to achieve horizontal movement of the push plate.

[0009] The present invention drives the push plate to move radially along the lifting rod by moving the lifting rod up and down. Compared with the method mentioned in the background art in which the adjusting screw is rotated to move the first clamping block and the second clamping block, the lifting of the lifting rod is more convenient, and there are fewer parts connected between the lifting rod and the push plate, so the force transmission efficiency is higher and the service life is longer. Among them, the length of the linkage block is designed according to the stroke of the push plate, so that when the push plate moves to the extreme position, the linkage block is not flat, or the connection end of the linkage block and the lifting rod is not located at the lower side of the connection end of the linkage block and the push plate.

[0010] Preferably, the housing positioning seat includes a top plate, the top plate has a guide groove running through the top and bottom for the lower end of the push plate to pass through, the guide groove is arranged along the radial direction of the lifting rod, and the push plate is fixed with an upper roller located on the upper side of the top plate and a lower roller located on the lower side of the top plate, the circumferential surface of the upper roller contacts the upper end surface of the top plate, and the circumferential surface of the lower roller contacts the lower end surface of the top plate. The friction between the push plate and the housing positioning seat of the present invention is not sliding friction, but rolling friction, the force required to move the push plate is smaller, and the movement of the push plate is more convenient.

[0011] Preferably, the axis of the upper roller is closer to the axis of the lifting rod than the axis of the lower roller.

[0012] Due to the error in production and processing, the shape and size of each linkage block are difficult to be consistent, and the position of the holes used by the lifting rod and the push plate for hinged connection with the linkage block is also difficult to ensure that there will be no deviation; the axis of the upper roller of the present invention is not located directly above the axis of the lower roller. When the push plate moves, the lower end of the push plate can swing around the axis of the upper roller, and the upper end of the push rod can swing around the axis of the lower roller, which can prevent the push rod from getting stuck on the housing positioning seat. At the same time, when the lifting rod descends, the upper roller will be subject to a downward force, so that the lower roller will not collide with the lower end surface of the top plate; when the lifting rod moves upward, the lower roller will be subject to an upward force, so that the upper roller will not collide with the upper end surface of the top plate, which can avoid the upper roller axis and the lower roller axis from tilting as much as possible, and can extend the service life of the upper roller and the lower roller.

[0013] Preferably, both the upper roller and the lower roller are bearings. Two horizontally arranged fixing rods are fixed on the push plate, and the upper roller and the lower roller are respectively fixed on one fixing rod; one upper roller and one lower roller are respectively arranged on opposite sides of each push plate. Since both the upper roller and the lower roller are bearings, the frictional force generated during the movement of the push plate can be reduced, and the pressure received by the lifting rod when it is pressed down can be reduced.

[0014] Preferably, the push plate is composed of a push plate body and a fixing block. A vertically arranged fixing groove is formed on the end face of the push plate body close to the lifting rod, and the end face of the push plate body far from the lifting rod is the contact surface. The fixing block includes a connecting portion close to the lifting rod and a fixing portion far from the lifting rod. The fixing portion is plate-shaped and fixed in the fixing groove. The linkage block is rotatably fixed to the connecting portion, and the fixing block is fixed to the push plate body so that the connecting portion contacts the push plate body; a horizontally arranged relief groove is provided at the position of the contact surface corresponding to the connection between the upper and lower adjacent magnets.

[0015] The push plate is composed of a push plate body and a fixing block, which is convenient for the processing of the push plate. The fixing groove is provided to keep the fixing block vertically arranged to prevent the push plate from tilting. Among them, the relief groove is used to make way for the glue overflowing between adjacent layers of magnets to avoid adhesion between the magnet and the push plate.

[0016] Preferably, the lifting rod is sleeved outside the fixing rod, and the elastic member is sleeved outside the fixing rod and located between the housing positioning seat and the lifting rod.

[0017] Preferably, an adjusting block is fixed to the upper end of the lifting rod. A mutually matching threaded structure is provided between the lower end of the adjusting block and the upper end of the lifting rod. The pressing block moves downward so that the first pressing portion contacts the adjusting block; a downwardly extending first pressing portion is provided in the middle of the pressing block, and a groove for accommodating the adjusting block is concavely formed in the middle of the lower end surface of the first pressing portion. The height position of the upper end surface of the adjusting block can be adjusted by the rotation of the thread of the adjusting block to adjust the lifting stroke of the lifting rod.

[0018] Preferably, the press includes a vertically arranged telescopic rod. A horizontally arranged pressing plate is provided at the lower end of the telescopic rod. A plurality of pressing blocks are fixed to the lower side of the pressing plate. A housing positioning seat is provided under each pressing block. A plurality of housing positioning seats are arranged at intervals left and right and fixed on the movable plate. The movable plate is equipped with a translation driving mechanism, and the translation driving mechanism is used for the forward and backward movement of the movable plate. The above settings enable the present invention to simultaneously assemble the housings of multiple motors and magnets, thereby improving production efficiency. Among them, the translation driving mechanism is used to enable the housing positioning seat to deviate from the pressing block to prevent the worker's hand from being located below the pressing block and the pressing plate, thereby reducing the possibility of safety accidents.

[0019] The present invention has the advantages of being able to maintain the position of the magnetic steel during bonding, avoiding the deviation of the fixed position of the magnetic steel from the set position, improving the installation accuracy of the magnetic steel, and facilitating the fixation of the magnetic steel to the casing. Description of the Drawings

[0020] Figure 1 It is a schematic structural view of one embodiment of the present invention;

[0021] Figure 2 It is a schematic structural view of the casing positioning seat and the pressing block of the present invention;

[0022] Figure 3 It is a sectional view of the present invention;

[0023] Figure 4 It is another sectional view of the present invention. Detailed Embodiment

[0024] The present invention will be further described below with reference to the drawings and specific embodiments.

[0025] As Figures 1 to 4 shown, an auxiliary device for bonding a casing and a magnetic steel of the present invention includes a press 10 and a casing positioning seat 2. The press 10 includes a vertically arranged telescopic rod, and a horizontally arranged pressing plate 11 is provided at the lower end of the telescopic rod. A plurality of pressing blocks 12 are fixed to the lower side of the pressing plate 11. A casing positioning seat 2 is provided under each pressing block 12. The plurality of casing positioning seats 2 are arranged at intervals left and right and fixed to the movable plate 13. The movable plate 13 is equipped with a translation driving mechanism for moving the movable plate 13 back and forth. Among them, the press 10 is a pneumatic press. The translation driving mechanism includes a linear cylinder 14, a guide rail 15, and a slider 16. The guide rail 15 is arranged in the front-rear direction. The slider 16 is slidably fitted on the guide rail 15 and fixed to the lower side of the movable plate 13. Among them, the guide rail 15 is fixed to the bottom plate 17, the press 10 is fixed to the bottom plate 17 through a bracket 18, a guide rod 19 is connected between the bracket 18 and the bottom plate 17, a guide sleeve 191 is slidably fitted outside the guide rod 19, and the pressing plate 11 is fixed to the guide sleeve 191.

[0026] On each housing positioning seat 2, a vertically arranged lifting rod 3 is supported by an elastic member (not shown in the figure). Two push plates 4 are provided on the circumferential side of the lifting rod 3. The push plates 4 are slidably fitted on the housing positioning seat 2 along the radial direction of the lifting rod 3. The lifting rod 3 moves up and down to make the push plates 4 move horizontally along the radial direction of the lifting rod 3. One side of the push plate 4 away from the lifting rod 3 has a contact surface for contacting the magnet, and the contact surface is in the shape of an arc surface the same as the inner surface of the magnet. The pressing block 12 has a first pressing portion 121 for applying force to the lifting rod 3 and a second pressing portion 122 for applying force to the magnet located on the side of the push plate 4. Among them, two isolation blocks 5 are provided on the circumferential side of the lifting rod 3. Each push plate 4 is located between two adjacent isolation blocks 5, and the isolation blocks 5 are fixed to the housing positioning seat 2. Among them, a horizontally arranged relief groove 40 is provided at the position of the contact surface corresponding to the connection between two adjacent upper and lower magnets.

[0027] A linkage block 31 is connected between the lifting rod 3 and the push plate 4. The upper end of the linkage block 31 is rotatably fixed to the lifting rod 3, and the lower end of the linkage block 31 is rotatably fixed to the push plate 4. When the lifting rod 3 moves downward, the upper end of the linkage block 31 moves downward, and the lower end of the linkage block 31 moves along the radial direction of the lifting rod 3 away from the lifting rod 3.

[0028] The housing positioning seat 2 includes a top plate 21. The top plate 21 has a guiding groove 22 that penetrates up and down for the lower end of the push plate 4 to pass through. The guiding groove 22 is arranged along the radial direction of the lifting rod 3. An upper roller 61 located above the top plate 21 and a lower roller 62 located below the top plate are fixed on the push plate 4. The circumferential surface of the upper roller 61 contacts the upper end surface of the top plate 21, and the circumferential surface of the lower roller 62 contacts the lower end surface of the top plate. Among them, the axis of the upper roller 61 is closer to the axis of the lifting rod 3 than the axis of the lower roller 62. Both the upper roller 61 and the lower roller 62 are bearings. Two horizontally arranged fixing rods 60 are fixed on the push plate 4. The upper roller 61 and the lower roller 62 are respectively fixed to a fixing rod 60, and an upper roller 61 and a lower roller 62 are respectively provided on the opposite sides of each push plate 4.

[0029] The push plate 4 is composed of a push plate body 41 and a fixing block. A vertically arranged fixing groove 43 is formed on the end surface of the push plate body 41 close to the lifting rod 3. The end surface of the push plate body 41 away from the lifting rod 3 is the contact surface. The fixing block includes a connecting portion 44 close to the lifting rod 3 and a fixing portion 45 away from the lifting rod 3. Both the fixing portion 45 and the connecting portion 44 are in the shape of a plate. The lower end of the linkage block 31 is rotatably fixed to the connecting portion 44. The fixing block is fixed to the push plate body 41 so that the fixing portion 45 is fixed in the fixing groove 43 and the connecting portion 44 abuts against the push plate body 41. Among them, both the upper roller 61 and the lower roller 62 are fixed on the connecting portion 44.

[0030] The lifting rod 3 is sleeved outside the fixed rod 32, and the elastic part is sleeved outside the fixed rod 32 and located between the housing positioning seat 2 and the lifting rod 3. An adjusting block 33 is fixed to the upper end of the lifting rod 3. A threaded structure is provided between the lower end of the adjusting block 33 and the upper end of the lifting rod 3. The pressing block 12 moves downward so that the first pressing part 121 contacts the adjusting block 33. The middle part of the pressing block 12 is provided with the downwardly extending first pressing part 121. The middle part of the lower end surface of the first pressing part 121 is concave to form a groove 123 for accommodating the adjusting block 33.

[0031] The housing and magnet bonding auxiliary device of the present invention is used for the bonding assistance of double-layer magnets and the housing. Each layer of magnet is composed of two tile-shaped magnets.

[0032] When the device of the present invention is used, place the two layers of magnets on the housing positioning seat, then place the housing on the housing positioning seat and sleeve it outside the magnets. At this time, the magnets are located between the contact surface of the push plate and the inner wall of the housing. Then start the linear cylinder of the translation drive mechanism to move the housing positioning seat directly below the pressing block. Then start the press. The pressing block moves downward to make the lifting rod move downward, so that the push plate moves toward the inner wall side of the housing, so that the magnets are pressed between the contact surface of the push plate and the inner wall of the housing, the magnets are pressed between the pressing block and the housing positioning seat, and the magnets are restricted between the two isolation blocks. After maintaining the magnets in a pressed state for a period of time, the press drives the pressing block to reset. The worker moves the housing positioning seat forward to deviate from the press through the translation drive mechanism. Finally, the worker takes away the housing.

[0033] The present invention has the advantages of being able to maintain the position of the magnets during bonding, avoiding the deviation of the fixed position of the magnets from the set position, improving the installation accuracy of the magnets, and facilitating the fixation of the magnets to the housing.

Claims

1. An auxiliary device for bonding a casing and a magnet, characterized in that The press comprises a press and a casing positioning seat, wherein the press comprises a press block, a vertically arranged lifting rod is provided below the press block, the lifting rod is supported on the casing positioning seat by an elastic member, a plurality of push plates are provided on the circumferential side of the lifting rod, the push plates are slidably fitted on the casing positioning seat along the radial direction of the lifting rod, the lifting rod moves up and down to make the push plates move horizontally along the radial direction of the lifting rod, the push plates have a contact surface for contacting with a magnetic steel on a side away from the lifting rod, and the press block has a first pressing portion for applying force to the lifting rod and a second pressing portion for applying force to the magnetic steel located on the side of the push plate; A linkage block is connected between the lifting rod and the push plate, the upper end of the linkage block is rotatably fixed to the lifting rod, and the lower end of the linkage block is rotatably fixed to the push plate. When the lifting rod moves downward, the upper end of the linkage block moves downward, and the lower end of the linkage block moves away from the lifting rod along the radial direction of the lifting rod; The housing positioning seat includes a top plate, the top plate has a guide groove penetrating up and down for the lower end of the push plate to pass through, the guide groove is arranged along the radial direction of the lifting rod, an upper roller located on the upper side of the top plate and a lower roller located on the lower side of the top plate are fixed to the push plate, the circumferential surface of the upper roller contacts the upper end surface of the top plate, and the circumferential surface of the lower roller contacts the lower end surface of the top plate; At least two isolation blocks are provided on the circumferential side of the lifting rod, each push plate is located between two adjacent isolation blocks, and the isolation blocks are fixed to the housing positioning seat; The push plate is composed of a push plate body and a fixed block, a vertically arranged fixed groove is formed on the end surface of the push plate body close to the lifting rod, the end surface of the push plate body away from the lifting rod is the contact surface, the fixed block includes a connecting part close to the lifting rod and a fixing part away from the lifting rod, the fixing part is plate-shaped and fixed in the fixed groove, the linkage block and the connecting part can be rotatably fixed, and the fixed block is fixed to the push plate body so that the connecting part contacts the push plate body; The contact surface is provided with a transversely arranged clearance groove at a position corresponding to the connection between two upper and lower adjacent magnetic steels.

2. The auxiliary device for bonding a casing and a magnet according to claim 1, characterized in that The axis of the upper roller is closer to the axis of the lifting rod than the axis of the lower roller.

3. The auxiliary device for bonding a casing and a magnet according to claim 1, characterized in that The upper roller and the lower roller are both bearings, and two transversely arranged fixing rods are fixed on the push plate, and the upper roller and the lower roller are respectively fixed on a fixing rod; an upper roller and a lower roller are respectively arranged on opposite sides of each push plate.

4. The auxiliary device for bonding a casing and a magnet according to claim 1, characterized in that The lifting rod is sleeved outside the fixing rod, and the elastic member is sleeved outside the fixing rod and is located between the casing positioning seat and the lifting rod.

5. The auxiliary device for bonding a casing and a magnet according to claim 1, characterized in that An adjusting block is fixed to the upper end of the lifting rod, and a threaded structure that cooperates with each other is provided at the lower end of the adjusting block and the upper end of the lifting rod. The pressing block moves downward to make the first pressing part contact the adjusting block; the middle part of the pressing block is provided with the first pressing part extending downward, and the middle part of the lower end surface of the first pressing part is concave to form a groove for accommodating the adjusting block.

6. The auxiliary device for bonding a casing and a magnet according to claim 1, characterized in that The press includes a vertically arranged telescopic rod, a horizontally arranged pressure plate is provided at the lower end of the telescopic rod, a plurality of pressure blocks are fixed on the lower side of the pressure plate, a casing positioning seat is provided on the lower side of each pressure block, a plurality of casing positioning seats are arranged at intervals on the left and right and fixed on the movable plate, and the movable plate is equipped with a translation driving mechanism, and the translation driving mechanism is used for the forward and backward movement of the movable plate.

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