High efficiency magnet bonding device for linear motor

Abstract

The utility model discloses a kind of high-efficiency magnetizing devices of linear motor, the stator of linear motor includes: stator plate and its magnetic strip, magnetizing tool includes: bottom plate, top plate and in the carrier of loading magnetic strip by column installation above it, bottom plate is set with movable plate between top plate, which can move along vertical direction, the lower end of the screw rod shaft connected with driving assembly passes through top plate and is connected with floating joint, screw rod shaft is rotationally cooperated with screw nut on top plate, floating joint is connected with the upper surface of movable plate, a electromagnet is installed on movable plate lower surface, in energized state, electromagnet and the surface magnetic attraction cooperation of stator plate opposite magnetic strip side.This utility model can realize stator plate and magnetic strip bonding and demolding, save artificial cost, improve processing efficiency, can also improve the relative position accuracy between stator plate and magnetic strip, and it is convenient to clamp the clamping of stator plate.

Description

Technical Field

[0001] This utility model relates to the field of linear motor processing technology, and in particular to a high-efficiency magnetizing device for linear motors. Background Technology

[0002] A linear motor is a transmission device that directly converts electrical energy into mechanical energy. It generally consists of a motor stator and magnetic pole plates, with the pole plates formed by attaching multiple magnets to one side of a fixed plate. Linear motors have unique advantages such as simple structure, high acceleration, and suitability for high-speed linear motion, and are widely used in various fields of mechanical manufacturing. Currently, most linear motor production sites still rely on manual, repetitive, and labor-intensive manual work to attach individual magnets. This process is tedious, time-consuming, labor-intensive, and results in poor accuracy and quality. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a high-efficiency magnetizing device for linear motors. This high-efficiency magnetizing device for linear motors can realize the bonding and demolding of stator plates and magnetic strips, saving labor costs and improving processing efficiency. It can also improve the relative positional accuracy between stator plates and magnetic strips, making it easier to clamp and pick up stator plates.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a high-efficiency magnetizing device for a linear motor. The stator of the linear motor includes a stator plate and several magnetic strips bonded to the stator plate at intervals. The magnetizing fixture includes a base plate, a top plate mounted above the base plate by at least two spaced columns, and a carrier for loading the magnetic strips. A movable plate that can move vertically is provided between the base plate and the top plate for placing the carrier. The lower end of a lead screw shaft connected to a drive assembly passes through the top plate and is connected to a floating joint provided between the top plate and the movable plate. The lead screw shaft and a lead screw nut fixedly mounted on the top plate are engaged by a threaded rotation. The other end of the floating joint, which is connected to the lead screw shaft at one end, is connected to the upper surface of the movable plate through a transition block. An electromagnet is mounted on the lower surface of the movable plate facing the base plate. When energized, the electromagnet is used for magnetic attraction with the surface of the stator plate opposite to the magnetic strips.

[0005] The following are further improvements to the above technical solution:

[0006] 1. In the above scheme, at least two pins are spaced apart on the upper surface of the base plate, and at least two pin holes that cooperate with the pins are opened on both the stator plate and the carrier body.

[0007] 2. In the above scheme, the two electromagnets are installed at intervals along the length of the stator plate on the lower surface of the movable plate.

[0008] 3. In the above scheme, the carrier further includes: a body that cooperates with the stator plate and a plurality of receiving grooves spaced apart on one side surface of the body, and the other side surface of the body is used for mounting and connecting with the upper surface of the base plate.

[0009] 4. In the above scheme, at least two mounting through holes are provided on the main body and on the outside of the receiving groove, and at least two carriers are fixedly connected to the base plate by bolts that are respectively embedded in the mounting through holes.

[0010] 5. In the above scheme, the driving component is a motor or a hand crank.

[0011] 6. In the above scheme, the floating joint further includes: a joint body with a built-in receiving groove and a floating body with a spherical connecting part at one end, wherein the spherical connecting part of the floating body is rotatably embedded in the receiving groove of the joint body.

[0012] 7. In the above scheme, the receiving groove is configured as a spherical groove that mates with the spherical connecting part.

[0013] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0014] This utility model discloses a high-efficiency magnetic bonding device for a linear motor. A movable plate, capable of vertical movement, is positioned between a base plate and a top plate for placing the carrier. A lead screw shaft, its upper end connected to a drive assembly, passes through the top plate and connects to a floating joint located between the top plate and the movable plate. The lead screw shaft and a lead screw nut fixedly mounted on the top plate are engaged via a threaded connection. The other end of the floating joint, connected to the lead screw shaft at one end, is connected to the upper surface of the movable plate via a transition block. An electromagnet is mounted on the lower surface of the movable plate facing the base plate. When energized, the electromagnet magnetically engages with the surface of the stator plate opposite to the magnetic strips. By slowly driving the stator plate to move simultaneously towards multiple magnetic strips until it adheres and bonds with them, and during this process, the floating joint eliminates axial constraints and adjusts concentricity in real time. Then, by moving the stator plate in the opposite direction, the magnetic strips bonded to the stator plate are demolded. This device saves labor costs, improves processing efficiency, enhances the relative positional accuracy between each stator plate and multiple magnetic strips during multiple batch operations, and facilitates the clamping and placement of the stator plate. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the structure of the high-efficiency magnetizing device for the linear motor of this utility model;

[0016] Appendix Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0017] Appendix Figure 3This is a cross-sectional view of the high-efficiency magnetizing device for the linear motor of this utility model;

[0018] Appendix Figure 4 This utility model Figure 3 Enlarged view of point B in the middle;

[0019] Appendix Figure 5 This utility model Figure 3 Enlarged view of point C in the middle;

[0020] Appendix Figure 6 This is a schematic diagram of the carrier in the high-efficiency magnetizing device for the linear motor of this utility model.

[0021] In the above attached diagrams: 101, stator plate; 102, magnetic strip; 1, base plate; 2, column; 3, top plate; 4, carrier; 41, body; 42, receiving groove; 43, mounting through hole; 5, movable plate; 51, bushing; 61, lead screw shaft; 62, lead screw nut; 7, hand crank; 8, electromagnet; 91, pin; 92, pin hole; 10, floating joint; 11, adapter block; 12, joint body; 121, receiving groove; 13, floating body; 131, spherical connection part. Detailed Implementation

[0022] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0023] Example 1: A high-efficiency magnetizing device for a linear motor, wherein the stator of the linear motor includes: a stator plate 101 and a plurality of magnetic strips 102 spaced apart and bonded to the stator plate 101; the magnetizing fixture includes: a base plate 1, a top plate 3 mounted above the base plate 1 by at least two spaced columns 2, and a carrier 4 for loading the magnetic strips 102; a movable plate 5 that can move vertically is provided between the base plate 1 and the top plate 3 for placing the carrier 4; and a lead screw shaft 61 whose upper end is connected to the drive assembly has its lower end inserted through... The top plate 3 is connected to the floating joint 10 located between the top plate 3 and the movable plate 5. The lead screw shaft 61 and the lead screw nut 62 fixedly installed on the top plate 3 are engaged by threaded rotation. The other end of the floating joint 10, which is connected to the lead screw shaft 61 at one end, is connected to the upper surface of the movable plate 5 through a transition block 11. An electromagnet 8 is installed on the lower surface of the movable plate 5 facing the bottom plate 1. When the electromagnet 8 is energized, it is used to magnetically engage with the surface of the stator plate 101 opposite to the magnetic strip 102.

[0024] Two of the above electromagnets 8 are installed at intervals along the length of the stator plate 101 on the lower surface of the movable plate 5.

[0025] The aforementioned carrier 4 further includes: a body 41 that is configured to cooperate with the stator plate 101 and a plurality of receiving grooves 42 spaced apart on one side surface of the body 41, the other side surface of the body 41 being used for mounting and connecting with the upper surface of the base plate 1.

[0026] The main body 41 has at least two mounting through holes 43 on the outside of the receiving groove 42. At least two of the carriers 4 are fixedly connected to the base plate 1 by bolts that are respectively embedded in the mounting through holes 43. The drive component is a motor.

[0027] The aforementioned floating connector 10 further includes: a connector body 12 with a built-in receiving groove 121 and a floating body 13 with a spherical connecting portion 131 at one end, wherein the spherical connecting portion 131 of the floating body 13 is rotatably embedded in the receiving groove 121 of the connector body 12; the receiving groove 121 is configured as a spherical groove that cooperates with the spherical connecting portion 131.

[0028] Example 2: A high-efficiency magnetizing device for a linear motor, wherein the stator of the linear motor includes a stator plate 101 and a plurality of magnetic strips 102 spaced apart and bonded to the stator plate 101. The magnetizing fixture includes a base plate 1, a top plate 3 mounted above the base plate 1 by at least two spaced columns 2, and a carrier 4 for loading the magnetic strips 102. A movable plate 5, which can move vertically, is provided between the base plate 1 and the top plate 3 for placing the carrier 4. The lower end of a lead screw shaft 61, whose upper end is connected to a drive assembly, passes through the top plate 3 and is connected to the movable plate 5. The floating joint 10 between 5 is connected. The lead screw shaft 61 and the lead screw nut 62 fixedly installed on the top plate 3 are engaged by thread rotation. The other end of the floating joint 10, which is connected to the lead screw shaft 61 at one end, is connected to the upper surface of the movable plate 5 through a transition block 11. An electromagnet 8 is installed on the lower surface of the movable plate 5 facing the bottom plate 1. When the electromagnet 8 is energized, it is used to magnetically engage with the surface of the stator plate 101 opposite to the magnetic strip 102. The use of the electromagnet to attract the stator plate makes the mechanical structure of connecting it to the stator plate simpler and more convenient.

[0029] At least two pins 91 are spaced apart on the upper surface of the base plate 1. At least two pin holes 92 that mate with the pins 91 are provided on both the stator plate 101 and the carrier body 41. The relative positional accuracy between the stator plate and the magnetic strip is ensured by repeated positioning, thereby improving the magnetic strip mounting quality of the product.

[0030] The aforementioned drive component is a hand crank 7. The aforementioned lead screw shaft 61 and lead screw nut 62 that cooperate with each other are T-shaped lead screw modules. The hand crank is used in conjunction with the lead screw to perform demolding and pressing operations by moving the lead screw up and down. The hand crank can manually rotate the lead screw to drive the stator plate to move vertically up and down. The electromagnet attracts the stator plate to achieve a quick clamping effect. The manual component can manually hold the lead screw shaft at any time. The use of the T-shaped lead screw can achieve effective self-locking to prevent the moving plate from falling.

[0031] The four columns 2 are respectively connected to the four corners of the base plate 1 and the top plate 3; each column 2 passes through the movable plate 5 and slides with the movable plate 5 through a graphite bushing 51 fixedly installed on the movable plate 5.

[0032] Working principle:

[0033] Apply an accelerator to the cleaned surface of the stator plate to which the magnet is to be applied. Install the stator plate with the surface to which the magnet is to be applied facing down on the base plate, so that the pins on the base plate are correspondingly inserted into the pin holes on the stator plate.

[0034] Place the electromagnet in an energized state to make it magnetic, turn on the motor or turn the hand crank to rotate the lead screw shaft to drive the electromagnet to move down with the movable plate until the electromagnet is magnetically connected to the upper surface of the stator plate on the base plate.

[0035] By rotating the lead screw shaft in the opposite direction, the electromagnet is driven to move up with the movable plate, and the stator plate, which is magnetically connected to the electromagnet, moves up and away from the base plate.

[0036] Several magnetic strips to be pasted are sequentially inserted into the receiving slots of the carrier body, so that each magnetic strip inserted into the receiving slot is magnetically attracted and fixed to the bottom surface of the corresponding receiving slot.

[0037] Install the carrier body with the magnetic strips installed on the base plate and make the pins on the base plate correspondingly embedded in the pin holes on the carrier body, and apply black glue to the surface of each magnetic strip in the carrier body facing the stator plate.

[0038] The hand crank is turned again to rotate the lead screw shaft, driving the stator plate, which is magnetically connected to the electromagnet, to move down with the movable plate until the lower surface of the stator plate to be magnetized is in contact with several magnetic strips coated with glue. Wait one minute. During the process of driving the stator plate to move down with the movable plate until the lower surface of the stator plate to be magnetized contacts the magnetic strips, the axial restriction is eliminated by the floating joint and the concentricity is adjusted in real time to ensure the positional accuracy and concentricity of the stator plate moving with the movable plate.

[0039] By shaking the hand crank in the opposite direction again to rotate the lead screw shaft, the stator plate connected to the electromagnet and the magnetic strip bonded to the stator plate are moved upward, separating the magnetic strip from the carrier body;

[0040] Place the electromagnet in a de-energized state to demagnetize it, and separate the stator plate with the magnetic strip attached from the demagnetized electromagnet.

[0041] The process of magnetizing and demagnetizing is simplified, reducing the waste of human resources; the stator plate is subjected to more uniform force, making it less likely for magnets to fail; the hand crank and lead screw shaft are connected by a flat key and an axial baffle, limiting the radial and axial fit and ensuring transmission accuracy; the overall structure is simple, compact, reliable, and easy to install and adjust.

[0042] When using the aforementioned high-efficiency magnetic bonding device with a linear motor, the stator plate is slowly driven to move simultaneously towards multiple magnetic strips until it is bonded to the magnetic strips. During this process, axial restriction is eliminated through a floating joint, and concentricity is adjusted in real time. Then, the magnetic strips bonded to the stator plate are demolded by moving the stator plate in the opposite direction. This not only saves labor costs and improves processing efficiency, but also improves the relative positional accuracy between each stator plate and multiple magnetic strips during multiple batch operations, and facilitates the clamping and placement of the stator plate.

[0043] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A high-efficiency magnetizing device for a linear motor, wherein the stator of the linear motor comprises: The stator plate (101) and a plurality of magnetic strips (102) spaced apart and bonded to the stator plate (101) are described. The magnetic bonding fixture includes: a base plate (1), a top plate (3) mounted above the base plate (1) by at least two spaced columns (2), and a carrier (4) for loading the magnetic strips (102). The fixture is characterized in that: a movable plate (5) that can move in the vertical direction is provided between the base plate (1) and the top plate (3) for placing the carrier (4). The lower end of a lead screw shaft (61) whose upper end is connected to the drive assembly passes through the top plate (3) and is connected to the top plate (3). The floating joint (10) between the movable plate (5) and the lead screw shaft (61) is connected to the lead screw nut (62) fixedly installed on the top plate (3) by threaded rotation. The other end of the floating joint (10) connected to the lead screw shaft (61) is connected to the upper surface of the movable plate (5) through a transition block (11). An electromagnet (8) is installed on the lower surface of the movable plate (5) facing the bottom plate (1). When the electromagnet (8) is energized, it is used to magnetically attract the surface of the stator plate (101) opposite to the magnetic strip (102).

2. The high-efficiency magnetizing device for a linear motor according to claim 1, characterized in that: At least two pins (91) are spaced apart on the upper surface of the base plate (1), and at least two pin holes (92) that mate with the pins (91) are opened on both the stator plate (101) and the carrier body (41).

3. The high-efficiency magnetizing device for a linear motor according to claim 1, characterized in that: Two electromagnets (8) are installed at intervals along the length of the stator plate (101) on the lower surface of the movable plate (5).

4. The high-efficiency magnetizing device for a linear motor according to claim 1, characterized in that: The carrier (4) further includes: a body (41) that is configured to cooperate with the stator plate (101) and a plurality of receiving grooves (42) spaced apart on one side surface of the body (41), the other side surface of the body (41) being used for mounting and connecting with the upper surface of the base plate (1).

5. The high-efficiency magnetizing device for a linear motor according to claim 4, characterized in that: At least two mounting holes (43) are provided on the body (41) and on the outside of the receiving groove (42). At least two of the carriers (4) are fixedly connected to the base plate (1) by bolts that are respectively embedded in the mounting holes (43).

6. The high-efficiency magnetizing device for a linear motor according to claim 1, characterized in that: The drive component is a motor or a hand crank (7).

7. The high-efficiency magnetizing device for a linear motor according to claim 1, characterized in that: The floating connector (10) further includes: a connector body (12) with a built-in receiving groove (121) and a floating body (13) with a spherical connecting part (131) at one end, wherein the spherical connecting part (131) of the floating body (13) is rotatably embedded in the receiving groove (121) of the connector body (12).

8. The high-efficiency magnetizing device for a linear motor according to claim 7, characterized in that: The receiving groove (121) is configured as a spherical groove that mates with the spherical connecting part (131).

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