Linear motor permanent magnet assembling device and permanent magnet assembly

Abstract

The utility model relates to the field and discloses an assembling device for a permanent magnet of a linear motor. The anti-sticking device comprises a magnet positioning plate and an anti-sticking base plate, the anti-sticking base plate is located on the side, close to a base plate, of the magnet positioning plate, the two sides of the anti-sticking base plate abut against the magnet positioning plate and the base plate respectively, a positioning mounting hole is formed in the side, away from the anti-sticking base plate, of the magnet positioning plate, and the anti-sticking base plate does not shield the positioning mounting hole. And the magnetic blocks are inserted into the positioning mounting holes and are adhered to the substrate. According to the utility model, when the magnetic block is pasted, the overflowing glue solution is not easy to stick to the magnet positioning plate under the action of the anti-sticking base plate; the structure is simple, and the manufacturing cost is reduced; the positions of the magnetic blocks on the substrate are more accurate, the magnetic field is more uniform, and the assembly is more efficient, simple and convenient; and threaded holes and adjusting bolts are formed in the assembly bottom plate, so that the device can be used for substrates of different models, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic materials, and in particular to an assembly device for a linear motor permanent magnet and a permanent magnet assembly. Background Art

[0002] Linear motors have been widely used in CNC machine tools, semiconductor manufacturing equipment, automated production lines and other fields due to their advantages such as high precision, high speed and zero wear. The magnetic assembly (permanent magnet) is one of the key components of a linear motor. The magnetic assembly includes a substrate and multiple magnetic blocks, and the multiple magnetic blocks are installed on the substrate at intervals. During the assembly production, the magnetic assembly will be assembled by an assembly device. The assembly device includes a base plate and a pressure plate. The top of the pressure plate is spaced apart with multiple positioning holes for positioning the magnetic blocks. During assembly, the substrate is placed on the base plate, and then the pressure plate is buckled onto the base plate so that the substrate is located between the base plate and the pressure plate. Then, glue is applied to the magnetic block, and finally the magnetic block is placed in the positioning hole so that the side coated with glue is attached to the substrate and the magnetic block is squeezed to make it firmly adhere to the substrate.

[0003] However, when the above structure is used to bond the magnetic block to the substrate, the glue will overflow after being squeezed. The overflowed glue will easily stick to the pressure plate. If it is not cleaned up in time, the pressure plate and the base plate will stick together, affecting the accuracy of the next magnetic assembly. Utility Model Content

[0004] In order to solve at least one aspect of the above problems, the utility model provides an assembly device for the permanent magnet of a linear motor, including a magnet positioning plate and an anti-sticking pad, the anti-sticking pad is located on the side of the magnet positioning plate close to the substrate, the two sides of the anti-sticking pad are respectively abutted against the magnet positioning plate and the substrate, the magnet positioning plate is arranged at intervals with the substrate through the anti-sticking pad, and a positioning mounting hole is opened on the side of the magnet positioning plate away from the anti-sticking pad, the positioning mounting hole passes through the magnet positioning plate, and the magnetic block is inserted into the positioning mounting hole and adhered to the substrate.

[0005] Optionally, the anti-sticking pad is provided with a clearance opening that is interconnected with the positioning mounting hole, and a plurality of the positioning mounting holes are spaced apart, and the plurality of positioning mounting holes are all connected with the clearance opening.

[0006] Optionally, the positioning and mounting hole is located within a projection range of the substrate on the magnet positioning plate, and a hole wall of the positioning and mounting hole is spaced apart from a peripheral outer wall of the substrate.

[0007] Optionally, the assembly device of the linear motor permanent magnet also includes an assembly base plate, which is located on the side of the anti-sticking pad away from the magnet positioning plate, and the assembly base plate abuts against the anti-sticking pad. A positioning groove is provided on the assembly base plate, and the substrate is inserted into the positioning groove.

[0008] Optionally, an edge of the positioning groove is provided with a glue overflow inclined surface, and the glue overflow inclined surface and the outer side wall of the substrate form a groove.

[0009] Optionally, a first positioning post is provided in the positioning groove, and the first positioning post is inserted into the substrate to position the substrate.

[0010] Optionally, a second positioning post is provided on a side of the assembly base plate close to the magnet positioning plate, a second positioning hole is provided on the magnet positioning plate, and the second positioning post is inserted into the second positioning hole.

[0011] Optionally, a threaded hole is opened on the groove wall on one side of the positioning groove, and an adjusting bolt is arranged in the threaded hole, and the adjusting bolt is used to tighten the substrate to be positioned in the positioning groove.

[0012] Optionally, the groove wall on one side of the positioning groove passes through the assembly base plate, and the outer wall of the assembly base plate on the side through which the positioning groove passes is provided with a hand-held material trough, and the hand-held material trough passes through the bottom of the assembly base plate and is interconnected with the positioning groove.

[0013] Compared with the prior art, the beneficial technical effects of the present invention are:

[0014] 1. The anti-sticking pad separates the base plate from the magnet positioning plate, preventing the glue overflowing when the magnets are attached from sticking to the magnet positioning plate. At the same time, the anti-sticking pad itself has an anti-sticking effect, preventing the glue from sticking to the pad. Therefore, when reassembling the magnetic assembly, there is no need to clean the glue on the magnet positioning plate, thereby improving production efficiency and assembly accuracy.

[0015] 2. Multiple positioning and mounting holes are connected to the same clearance opening. Under the action of the anti-sticking pad, the part between two adjacent positioning and mounting holes on the magnet positioning plate does not contact the base plate, so that the glue overflowing between two adjacent magnetic blocks is not easily adhered to the magnet positioning plate. At the same time, the structure is simple, which reduces the manufacturing cost.

[0016] 3. The overflow bevel prevents the overflowed glue from directly adhering to the plane of the assembly base close to the magnet positioning plate, thereby reducing assembly accuracy and efficiency. In addition, the setting of the hand-held material trough makes it easier to remove the substrate from the positioning slot;

[0017] 4. After the base plate is inserted into the positioning groove, the first positioning post will be inserted into the base plate to limit its position. After the magnetic positioning plate is installed, it will also be limited by the second positioning post, thereby making the position of the magnetic block installed on the base plate more accurate, making the magnetic field more uniform, and making assembly more efficient and simple.

[0018] 5. For different types of substrates, the substrate can be placed in the positioning groove and then clamped in the positioning groove by adjusting the bolts, and then the corresponding magnetic positioning plate can be replaced, making the device more widely used.

[0019] In addition, the present invention provides a permanent magnet assembly, which is assembled by the above-mentioned linear motor permanent magnet assembly device.

[0020] Compared with the prior art, the permanent magnet assembly of the present invention has the following beneficial technical effects:

[0021] 1. The precise positioning of the magnetic block on the substrate can make the generated magnetic field more uniform. When used in a linear motor, it can make the magnetic field more evenly distributed in the working area of ​​the linear motor, thereby improving the working accuracy of the linear motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the assembled bottom plate, the magnet positioning plate and the anti-sticking pad in the embodiment of the present utility model;

[0023] Figure 2 This is an exploded view of the assembly of the bottom plate, the magnet positioning plate and the anti-sticking pad in the embodiment of the present utility model;

[0024] Figure 3 This is a structural diagram of the assembled base plate in an embodiment of the present utility model;

[0025] Figure 4 This is a structural diagram of the permanent magnet assembly in an embodiment of the present utility model.

[0026] Explanation of the accompanying drawings: 1. Assembly base plate; 11. Positioning groove; 12. First positioning column; 13. Threaded hole; 14. Hand-held material trough; 15. Glue overflow slope; 16. Second positioning column; 2. Magnet positioning plate; 21. First positioning socket; 22. Second positioning socket; 23. Positioning mounting hole; 24. Support ear; 3. Anti-sticking pad; 31. Clearance opening; 4. Magnetic assembly; 41. Base plate; 42. Magnetic block; 5. Connecting plate. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships based on the position or location relationship of the product during normal use.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0030] The following is combined with Figure 1-4 This application is described in further detail.

[0031] In the first aspect, the embodiment of the present invention provides an assembly device for a permanent magnet of a linear motor, referring to Figure 1 and Figure 2 The assembly device of the permanent magnet of the linear motor includes an assembly base plate 1, a magnet positioning plate 2 and an anti-sticking pad 3. The assembly base plate 1 is suitable for positioning the substrate 41, and the magnet positioning plate 2 is detachably mounted on the top of the assembly base plate 1 for the magnetic block 42 to be positioned and mounted on the substrate 41. The anti-sticking pad 3 is located on the side of the magnet positioning plate 2 close to the assembly base plate 1. The anti-sticking pad 3 is detachably mounted on the assembly base plate 1. The two sides of the anti-sticking pad 3 are respectively in contact with the magnet positioning plate 2 and the assembled base plate 1, and a part of the anti-sticking pad 3 is in contact with the substrate 41, thereby preventing the glue overflowing when the magnetic block 42 is bonded to the substrate 41 from sticking to the magnet positioning plate 2 or the assembly base plate 1.

[0032] Reference Figure 2 and Figure 3 A positioning groove 11 is provided on one side of the assembly base plate 1 close to the magnet positioning plate 2. The substrate 41 can be positioned after being placed in the positioning groove 11. A slot is provided at the bottom of the positioning groove 11, and a first positioning column 12 is inserted into the slot. The first positioning column 12 can pass through the substrate 41 to position the substrate and install it in the positioning groove 11. In this embodiment, two slots are preferably provided at intervals, and the first positioning column 12 is inserted into both slots. Both first positioning columns 12 pass through the substrate 41, which improves the stability of limiting the substrate 41 and thereby ensures the assembly accuracy in the same batch.

[0033] A threaded hole 13 is provided on the groove wall on one side of the positioning groove 11, and an adjusting bolt (not shown in the figure) is provided in the threaded hole 13. For different models of substrates 41, the first positioning column 12 can be pulled out first, and then the substrate can be placed in the positioning groove 11 and then the substrate 41 can be clamped and limited in the positioning groove 11 by the adjusting bolt. After that, the corresponding magnetic positioning plate 2 can be replaced, so that the device has a wider range of uses.

[0034] The wall of the positioning slot 11 on one side of the vertically threaded hole 13 extends through the assembly base plate 1. The outer wall of the assembly base plate 1 on the side through which the positioning slot 11 passes is provided with a hand-held material removal slot 14. The hand-held material removal slot 14 extends through the bottom of the assembly base plate 1 and communicates with the positioning slot 11. This arrangement provides a notch in the assembly positioning plate, making it easy to remove the assembled base plate 41 and magnet from the positioning slot 11.

[0035] Reference Figure 2 and Figure 3 The inner edge of the positioning groove 11 is provided with an overflow glue slope 15. When the substrate 41 is placed in the positioning groove 11, the outer wall at the corresponding position will form a groove with the overflow glue slope 15, and the substrate 41 will not contact the overflow glue slope 15. If a large amount of glue overflows when the magnetic block is bonded to the substrate, the glue will flow into the overflow glue slope 15, making it difficult for the glue to directly adhere to the flat surface of the assembly base plate 1 near the magnet positioning plate 2, thereby reducing assembly accuracy and efficiency.

[0036] Among them, the magnet positioning plate 2 and the anti-sticking pad 3 are both provided with first positioning holes 21 that are interconnected. The first positioning column 12 can be inserted into the first positioning hole 21 and pass through the anti-sticking pad 3 and the magnet positioning plate 2, thereby playing a role in positioning and limiting the anti-sticking pad 3 and the magnet positioning plate 2.

[0037] Reference Figure 2 and Figure 3 Second positioning posts 16 are mounted on the side of the assembly base plate 1 near the magnet positioning plate 2. Second positioning holes 22 are provided on both the magnet positioning plate 2 and the release plate 3. Second positioning posts 16 can be inserted into these second positioning holes 22, passing through the release plate 3 and the magnet positioning plate 2. Multiple second positioning posts 16 are spaced apart on the assembly base plate 1, and multiple corresponding second positioning holes 22 are also provided, further enhancing the stability of the release plate 3 and the magnet positioning plate 2 after installation.

[0038] A positioning mounting hole 23 is provided on the side of the magnet positioning plate 2 away from the anti-sticking pad 3. The positioning mounting hole 23 passes through the magnet positioning plate 2. The anti-sticking pad 3 is provided with a clearance opening 31 that is interconnected with the positioning mounting hole 23. The anti-sticking pad 3 does not block the positioning mounting hole 23, so that the magnetic block 42 can pass through the positioning mounting hole 23 and the clearance opening 31 and adhere to the substrate 41.

[0039] The positioning mounting hole 23 is located within the projection range of the substrate on the magnet positioning plate 2, that is, the positioning mounting hole 23 is located within the range of the substrate 41. At the same time, the hole wall of the positioning mounting hole 23 is spaced apart from the outer wall of the substrate 41. On the one hand, after the magnetic block 42 is installed, it does not protrude from the substrate 41 and there is a gap between it and the outer wall of the substrate 41; on the other hand, it also allows the overflowed glue to have a certain flow space and will not stick to the magnet positioning plate 2 or the assembly base plate 1.

[0040] Reference Figure 2 and Figure 3 There are multiple positioning holes 23 spaced apart, and only one clearance opening 31. All of the positioning holes 23 are connected to the clearance opening 31. With the help of the anti-sticking pad 3, the portion between two adjacent positioning holes 23 on the magnet positioning plate 2 does not contact the base plate, making it difficult for glue overflowing between two adjacent magnets to stick to the magnet positioning plate 2.

[0041] The magnet positioning plate 2 has two opposite outer side walls integrally formed with ears 24, which protrude from the assembly base 1, making it easier to remove the magnet positioning plate 2 from the assembly base 1. Similarly, the anti-sticking pad 3 also has two opposite outer side walls integrally formed with ears 24.

[0042] The implementation principle of an assembly device for permanent magnets of a linear motor according to an embodiment of the present application is as follows: when assembling and producing permanent magnets in a linear motor, first, place the base plate into the positioning groove 11, and pass the first positioning post 12 through the base plate to limit it; secondly, place the anti-sticking pad 3 on the top of the assembly base plate 1 and pass the second positioning post 16 and the first positioning post 12 through the anti-sticking pad 3 to position it; then, place the magnet positioning plate 2 on the top of the anti-sticking pad 3 and pass the second positioning post 16 and the first positioning post 12 through the magnet positioning plate 2; finally, apply glue to each magnetic block and bond it to the base plate through the corresponding positioning mounting hole 23.

[0043] During the above process, the anti-sticking pad 3 separates the substrate 41 from the magnet positioning plate 2, so that the glue overflowing when the magnetic block 42 is pasted is not easy to stick to the magnet positioning plate 2. At the same time, the anti-sticking pad 3 itself has an anti-sticking effect, so that the glue is not easy to stick to the anti-sticking pad 3.

[0044] In a second aspect, another embodiment of the present invention further provides a permanent magnet assembly, which is assembled and produced by the above-mentioned linear motor permanent magnet assembly device.

[0045] Reference Figure 3 and Figure 4 The permanent magnet assembly includes two symmetrically arranged sets of magnetic assemblies 4 and a connecting plate 5 for connecting the two sets of magnetic assemblies 4. The magnetic assemblies 4 are manufactured using the aforementioned linear motor permanent magnet assembly device. The magnetic assembly 4 includes a base plate 41 and a plurality of magnetic blocks 42. In this embodiment, the magnetic blocks 42 are preferably single magnets, and the multiple single magnets are arranged at intervals on the base plate.

[0046] The single magnet is made of high-performance permanent magnet material, which can optimize the magnetic circuit, reduce magnetic loss, and improve the working efficiency of the linear motor. During assembly, the single magnets of the same polarity on the same substrate 41 need to be installed at intervals, that is, the poles of the two adjacent single magnets facing their own substrates are opposite poles. When the two sets of magnetic components 4 are combined with the connecting plate 5, the opposing magnets need to be opposite in polarity and attract each other. This setting allows the permanent magnet assembly to be installed in the linear motor, so that the magnetic field is more evenly distributed in the working area of ​​the linear motor, thereby improving the working accuracy of the linear motor.

[0047] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present utility model.

Claims

1. An assembly device for a linear motor permanent magnet, characterized in that: The invention comprises a magnet positioning plate (2) and an anti-sticking pad (3), wherein the anti-sticking pad (3) is located on a side of the magnet positioning plate (2) close to the base plate (41), and the two sides of the anti-sticking pad (3) are respectively in contact with the magnet positioning plate (2) and the base plate (41), and the magnet positioning plate (2) is arranged at intervals with the base plate (41) through the anti-sticking pad (3), and a positioning mounting hole (23) is provided on a side of the magnet positioning plate (2) away from the anti-sticking pad (3), and the positioning mounting hole (23) passes through the magnet positioning plate (2), and the magnetic block (42) is inserted into the positioning mounting hole (23) and adhered to the base plate (41).

2. The assembly device for a linear motor permanent magnet according to claim 1, characterized in that: The anti-sticking pad (3) is provided with a clearance opening (31) that is in communication with the positioning mounting hole (23). A plurality of the positioning mounting holes (23) are spaced apart, and the plurality of positioning mounting holes (23) are all in communication with the clearance opening (31).

3. The assembly device for a linear motor permanent magnet according to claim 1, characterized in that: The positioning mounting hole (23) is located within the projection range of the base plate (41) on the magnet positioning plate (2), and the hole wall of the positioning mounting hole (23) and the peripheral outer wall of the base plate (41) are both spaced apart.

4. The assembly device for a linear motor permanent magnet according to any one of claims 1 to 3, characterized in that: The assembly base plate (1) is also included. The assembly base plate (1) is located on a side of the anti-sticking pad (3) away from the magnet positioning plate (2). The assembly base plate (1) is in contact with the anti-sticking pad (3). The magnet positioning plate (2) is detachably connected to the assembly base plate (1). A positioning groove (11) is provided on the assembly base plate (1), and the base plate (41) is inserted into the positioning groove (11).

5. The assembly device for a linear motor permanent magnet according to claim 4, characterized in that: An overflowing glue slope (15) is provided on the edge of the positioning groove (11), and the overflowing glue slope (15) and the outer side wall of the base plate (41) form a groove.

6. The assembly device for a linear motor permanent magnet according to claim 4, characterized in that: A first positioning column (12) is provided in the positioning groove (11), and the first positioning column (12) is inserted into the base plate (41) to position the base plate (41).

7. The assembly device for a linear motor permanent magnet according to claim 4, characterized in that: A second positioning column (16) is provided on one side of the assembly base plate (1) close to the magnet positioning plate (2), a second positioning socket (22) is provided on the magnet positioning plate (2), and the second positioning column (16) is inserted into the second positioning socket (22).

8. The assembly device for a linear motor permanent magnet according to claim 4, characterized in that: A threaded hole (13) is provided on a groove wall on one side of the positioning groove (11), and an adjusting bolt is provided in the threaded hole (13). The adjusting bolt is used to tighten the base plate (41) to be positioned in the positioning groove (11).

9. The linear motor permanent magnet assembly device according to claim 4, characterized in that: The groove wall on one side of the positioning groove (11) passes through the assembly base plate (1), and the outer wall of the assembly base plate (1) on the side through which the positioning groove (11) passes is provided with a hand-held material trough (14), and the hand-held material trough (14) passes through the bottom of the assembly base plate (1) and is communicated with the positioning groove (11).

10. A permanent magnet assembly, characterized in that: The linear motor permanent magnet is assembled by the assembly device of any one of claims 1 to 9.

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