A pressing tool for special-shaped combined magnets

Abstract

The present invention relates to a pressing tool for special-shaped combined magnets, comprising a base plate and a slider, wherein two groups of slider limit blocks and two sliders are arranged on the base plate, and the pressing tool further comprises two positioning plates installed on the base plate and located between the two sliders, wherein the positioning plate is provided with a plurality of magnet assembly slots, the opening direction of the magnet assembly slots is toward the sliders, and the sliders are provided with a plurality of push rods respectively corresponding to the magnet assembly slots, and when the sliders slide toward the middle of the positioning plates, the push rods can press the plurality of special-shaped magnet blocks in the magnet assembly slots into the magnet assembly slots to form a first special-shaped combined magnet. The present invention has the following beneficial effects: the pressing tool can assist workers to quickly complete the press-fitting assembly of special-shaped combined magnets, with high production efficiency and good product consistency, meeting the needs of large-scale batch production.

Description

Technical Field

[0001] The invention relates to a magnet assembly jig, in particular to a pressing tool for special-shaped combined magnets. Background Art

[0002] The components of magnets are iron, cobalt, and nickel atoms. The internal structure of the atoms is quite special and they have magnetic moments. Magnets are a basic electronic and electrical component widely used in the world today. They are mainly used in computers, mobile phones, televisions, communications, toys, audio, automation equipment, MRI, etc. At present, neodymium iron boron magnets are widely used as high-performance permanent magnets. In the production and processing of electronic products, diaphragms (microphones, headphones, speakers, etc.), and electroacoustic equipment, some equipment requires magnets that are not regular shapes such as rectangles or circles. According to the product processing requirements, the magnets need to be combined into a shape and size suitable for the equipment. The existing magnet combination press-fitting tooling has poor positioning accuracy and low press-fitting efficiency, and cannot meet the needs of mass production. Summary of the invention

[0003] The purpose of the present invention is to provide a pressing tool for special-shaped combined magnets, so as to solve the problem of low pressing efficiency of existing magnet combination pressing tools.

[0004] In order to solve the above problems, the present invention provides a pressing tool for special-shaped combination magnets, including a base plate and a slider, wherein the base plate is provided with two groups of slider limit blocks and two sliders, and the slider can slide toward the middle of the base plate in a slideway formed by a group of the limit sliders; the pressing tool also includes two positioning plates installed on the base plate and located between the two sliders, and the positioning plates are provided with a plurality of magnet assembly grooves, and the opening direction of the magnet assembly grooves is toward the sliders, and the sliders are provided with a plurality of push rods corresponding to the magnet assembly grooves respectively, and when the sliders slide toward the middle of the positioning plates, the push rods can press the plurality of special-shaped magnet blocks in the magnet assembly grooves into the magnet assembly grooves to form a first special-shaped combination magnet.

[0005] The pressing tool for special-shaped combined magnets provided by the present invention also has the following technical features:

[0006] Furthermore, a positioning pin is provided on the upper surface of the base plate, a positioning hole is provided on the positioning plate to cooperate with the positioning pin on the base plate, a positioning line close to the magnet assembly slot is also provided on the positioning plate, and a plurality of overflow glue grooves are provided at the closed end of the positioning plate close to the magnet assembly slot, and the overflow glue grooves are respectively arranged corresponding to the fitting surfaces of two adjacent special-shaped magnet blocks in the first special-shaped combination magnet.

[0007] Furthermore, an avoidance groove is provided at the end corner of the closed end of the magnet assembly groove to prevent the corners of the first special-shaped combined magnet from being damaged due to stress concentration during the pressing process.

[0008] Furthermore, a clamping plate is installed on the upper side of the positioning plate, and the clamping plate includes a mounting connecting plate and a pulling and pressing plate. The pulling and pressing plate can slide on the mounting connecting plate in a direction perpendicular to the magnet assembly slot, and a pressure head is provided on the bottom surface of the mounting connecting plate to cooperate with the upper surface of the first special-shaped combination magnet.

[0009] Furthermore, a through hole close to the pressure head is provided on the bottom surface of the mounting connecting plate, and a pull head is provided on the pulling and pressing plate, which passes downward through the through hole and extends into the magnet assembly groove, and the shape of the side surface of the pull head close to the pressure head is adapted to the shape of the side surface of the first special-shaped combination magnet.

[0010] Furthermore, a positioning pin is provided on the upper surface of the positioning plate, and a positioning hole is provided on the mounting connecting plate to cooperate with the positioning pin on the upper surface of the positioning plate, the pressure head is an arc-shaped pressure head, and the pulling head is an arc-shaped pulling head; specifically, the upper surface of the first special-shaped combination magnet is arc-shaped, and the pressure head is an arc-shaped pressure head with an arc-shaped end. Preferably, an elastic gasket is also provided on the pressure head; the side of the first special-shaped combination magnet is arc-shaped, and the shape of the side of the pulling head close to the pressure head is adapted to the side of the first special-shaped combination magnet, and when the pulling and pressing plate drives the pulling head to slide toward the adjacent pressure head, the first special-shaped combination magnet can be pressed in a direction perpendicular to the magnet assembly slot.

[0011] Furthermore, a glue overflow groove is provided on the slider.

[0012] The present invention has the following beneficial effects: the pressing tool can assist workers to quickly complete the pressing and assembly of special-shaped combined magnets, has high production efficiency, good product consistency, and meets the needs of large-scale batch production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A special-shaped combined magnet assembled by the pressing tooling of the embodiment of the present invention;

[0014] Figure 2 for Figure 1 Bottom view of the special-shaped combined magnet in FIG.

[0015] Figure 3 is a schematic structural diagram of a pressing tool in an embodiment of the present invention;

[0016] Figure 4 for Figure 3 A schematic diagram of the structure of the positioning plate;

[0017] Figure 5 It is a schematic diagram of the structure of the pressing plate of the pressing tool in the embodiment of the present invention after being turned over;

[0018] Figure 6 for Figure 5 A partial enlarged view of section A in FIG. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0020] The structure of the special-shaped combined magnet assembled by the pressing tool for special-shaped combined magnets according to the embodiment of the present invention is as follows: Figure 1 As shown, the special-shaped composite magnet is composed of four special-shaped magnet blocks a1, a2, a3, a4, two special-shaped iron blocks b1, b2, and patch c1, a total of 7 parts. During the processing, the four special-shaped magnet blocks a1, a2, a3, a4 need to be bonded and pressed together to form the first special-shaped composite magnet a14, and then the two special-shaped iron blocks b1, b2 need to be bonded and pressed together on the bottom of the first special-shaped composite magnet to form the second special-shaped composite magnet. Then, the patch c1 is pasted and pressed on the side of the second special-shaped composite magnet to form the final special-shaped composite magnet. Then, magnetization is performed as needed, and the finished product can be packaged after passing the inspection. Figure 1 The special-shaped combined magnet shown in FIG. 1 has a flat patch c1 on the side and an arc surface formed by four special-shaped magnet blocks on the upper side. Figure 2 The bottom view of the special-shaped combined magnet is shown, and the side of the special-shaped combined magnet opposite to the patch c1 is an arc surface formed by four special-shaped magnet blocks.

[0021] like Figures 3 to 6 In one embodiment of the press fitting for special-shaped combined magnets of the present invention, the press fitting for special-shaped combined magnets of the embodiment comprises a base plate 10 and a slider 20. The base plate 10 is provided with two sets of slider limit blocks 11 and two sliders 20. The sliders 20 can slide toward the middle of the base plate 10 in a slideway formed by a set of limit sliders 11. Figure 3 , Figure 5As shown, the pressing tool also includes two positioning plates 30 installed on the bottom plate 10 and located between the two sliders 20. The positioning plate 30 is provided with a plurality of magnet assembly slots 31, the opening direction of the magnet assembly slots 31 faces the slider 20, and the slider 20 is provided with a plurality of push rods 21 corresponding to the magnet assembly slots 31 respectively. The slider 20 is also provided with a lever 201. When the slider 20 is driven to slide toward the middle of the positioning plate 10 by the lever 201, the push rod 21 can press the plurality of special-shaped magnet blocks (a1, a2, a3, a4) in the magnet assembly slot 31 into the magnet assembly slot 31 to form the first special-shaped combined magnet a14. Specifically, the positioning plate 30 is used as a carrier, and the special-shaped magnet blocks a1, a2, a3, a4 are placed in sequence in the magnet assembly slot 31 and glued on the surfaces to be bonded of two adjacent special-shaped magnet blocks, and the special-shaped magnet blocks in the plurality of magnet assembly slots 31 can be pressed together at the same time by the push rod.

[0022] The pressing tool for special-shaped combined magnets provided by the present invention also has the following technical features:

[0023] In one embodiment of the present application, preferably, Figures 3 to 6 The upper surface of the bottom plate 10 of the pressing tool shown is provided with a positioning pin 12, and the positioning plate 30 is provided with a positioning hole 32 that cooperates with the positioning pin 12 on the bottom plate 10, thereby ensuring the installation accuracy while conveniently installing and fixing the positioning plate 30 on the bottom plate 10 and conveniently removing it. Preferably, the positioning plate 30 is also provided with a plurality of positioning lines 33 near the magnet assembly slot 31, and the positioning lines 33 can be used as positioning references of the special-shaped magnet blocks respectively so as to facilitate the quick placement of the special-shaped magnet blocks a1, a2, a3, and a4 in each magnet assembly slot 31 in sequence, and facilitate the subsequent glue dispensing operation. Preferably, the positioning lines 33 are wire grooves engraved on the positioning plate, thereby preventing the positioning lines from being worn out after long-term use. Preferably, the closed end of the positioning plate 30 near the magnet assembly slot 31 is also provided with a plurality of overflow glue grooves 34, and the overflow glue grooves 34 are respectively arranged corresponding to the fitting surfaces of two adjacent special-shaped magnet blocks in the first special-shaped combined magnet, which can prevent the excessive amount of glue dispensing from causing step differences or gaps between the magnet blocks. Preferably, an avoidance groove 35 is also provided at the end corner of the closed end of the magnet assembly groove 31 to prevent the edges and corners of the first special-shaped composite magnet a14 from being damaged due to stress concentration during the pressing process. Preferably, the avoidance groove 35 is a cylindrical groove connected to the magnet assembly groove 31.

[0024] In one embodiment of the present application, preferably, a clamping plate 40 is also installed on the upper side of the positioning plate 30, and the clamping plate 40 includes a mounting connecting plate 41 and a tension plate 42. The tension plate 42 can slide on the mounting connecting plate 41 in a direction perpendicular to the magnet assembly slot 31, and the bottom surface of the mounting connecting plate 41 is provided with a Figure 5The upper surface of the first special-shaped combined magnet a14 is matched with the pressing head 43, so that the first special-shaped combined magnet a14 can be pressed downward above the positioning plate 30 by the pressing head 43.

[0025] Preferably, a through hole 401 close to the pressure head 43 is also provided on the bottom surface of the mounting connecting plate 41, and a pulling head 44 is provided on the pulling and pressing plate 42, which passes downward through the through hole 401 and extends into the magnet assembly groove 31. The shape of the side surface of the pulling head 44 close to the pressure head 43 is adapted to the shape of the side surface of the first special-shaped combination magnet a14, so that the first special-shaped combination magnet a14 can be pressed by the pulling head 44 and the first magnet assembly groove 31, and thus the first special-shaped combination magnet a14 can be reliably pressed in three mutually perpendicular directions by the push rod 21, the pressure head 43 and the pulling head 44.

[0026] Preferably, a positioning pin 36 is provided on the upper surface of the positioning plate 30, and a positioning hole 45 is provided on the mounting connecting plate 41 to cooperate with the positioning pin 36 on the upper surface of the positioning plate 30, thereby conveniently realizing the installation and removal of the clamping plate 40 while ensuring the installation accuracy. Preferably, the pressure head 43 is an arc-shaped pressure head, and the pull head 44 is an arc-shaped pull head; specifically, the cross-sectional shape of the pressure head 43 is similar to that of the pressure head 43. Figure 2 The arc shape of the side of the special-shaped combined magnet in the embodiment is adapted to the arc shape of the side opposite to the patch c1, and the shape of the side of the pull head 44 close to the pressure head 43 is adapted to the arc shape of the side of the pull head 44 close to the pressure head 43. Figure 1 Preferably, the pull head 44 is also provided with a glue overflow groove to prevent the excessive amount of glue from causing step differences or gaps between the magnet blocks.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pressing tool for special-shaped combined magnets, characterized in that: The invention comprises a bottom plate and a slider, the bottom plate is provided with two groups of slider limit blocks and two sliders, the slider can slide toward the middle of the bottom plate in a slideway formed by a group of slider limit blocks; the pressing tool also comprises two positioning plates installed on the bottom plate and located between the two sliders, the positioning plate is provided with a plurality of magnet assembly slots, the opening direction of the magnet assembly slots faces the slider, and the end corners of the closed ends of the magnet assembly slots are also provided with avoidance slots; the slider is provided with a plurality of push rods corresponding to the magnet assembly slots respectively, and when the slider slides toward the middle of the positioning plate, the push rods can press the plurality of special-shaped magnet blocks in the magnet assembly slots The first special-shaped combination magnet is formed in the magnet assembly groove; a clamping plate is also installed on the upper side of the positioning plate, and the clamping plate includes a mounting connection plate, and a pressure head is provided on the bottom surface of the mounting connection plate to cooperate with the upper surface of the first special-shaped combination magnet; the clamping plate also includes a pulling and pressing plate, and the pulling and pressing plate can slide on the mounting connection plate in a direction perpendicular to the magnet assembly groove, and a through hole close to the pressure head is also provided on the bottom surface of the mounting connection plate, and a pulling head is provided on the pulling and pressing plate to pass downward through the through hole and extend into the magnet assembly groove, and the shape of the side of the pulling head close to the pressure head is adapted to the shape of the side of the first special-shaped combination magnet.

2. The pressing tool for special-shaped combined magnets according to claim 1, characterized in that: The positioning plate is also provided with a positioning line close to the magnet assembly slot.

3. The pressing tool for special-shaped combined magnets according to claim 1, characterized in that: A plurality of overflowing glue grooves are further provided on the closed end of the positioning plate close to the magnet assembly groove, and the overflowing glue grooves are respectively arranged corresponding to the fitting surfaces of two adjacent special-shaped magnet blocks in the first special-shaped combined magnet.

4. The pressing tool for special-shaped combined magnets according to claim 1, characterized in that: The pressing head is an arc-shaped pressing head, and the pulling head is an arc-shaped pulling head.

5. The pressing tool according to claim 1, characterized in that: The slider is provided with a glue overflow groove.

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