Magnetic steel bonding and fixing tool

Abstract

The utility model discloses a magnetic steel bonding and fixing tool, which is used for integrating a plurality of magnetic steels into a whole and comprises a non-magnetic upper die, a non-magnetic lower die and a fastener, the non-magnetic upper die and the non-magnetic lower die are assembled in a detachable manner, and the fastener is used for fastening the non-magnetic upper die and the non-magnetic lower die. A fastening cavity used for containing the magnetic steel is arranged between the non-magnetic-conductive upper die and the non-magnetic-conductive lower die, and the magnetic steel after being glued is fastened into the fastening cavity through the fastening piece. The magnetic steel bonding and fixing tool integrates the magnetic steel, the production efficiency is high, the error is small, the yield is high, and subsequent assembling of the integrated magnetic steel is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of magnet assembly, in particular to a magnetic steel bonding and fixing tooling. Background Art

[0002] An electric motor is an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. A common type of electric motor is a permanent magnet motor, which usually includes a stator core and a rotor core. As the rotating mechanism of the permanent magnet motor, the rotor core is internally assembled with magnetic steel, which is used to interact with the rotating magnetic field generated by the stator core, thereby generating the output of the motor. When assembling the magnetic steel, it is necessary to integrate the segmented magnetic steel into a whole before assembly. At present, the integration of magnetic steel mainly relies on manual integration. The glue is applied to the magnetic steel one by one manually and bonded into a whole. This integration method has low production efficiency, and manual operation is prone to errors, resulting in a high defective rate, which affects the subsequent assembly of the magnetic steel to the rotor core.

[0003] Therefore, it is necessary to develop a magnetic steel bonding and fixing tooling to solve the above technical problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a magnetic steel bonding and fixing tooling.

[0005] To achieve the above-mentioned utility model purpose, the utility model adopts the following technical scheme: A magnetic steel bonding and fixing tooling is used to integrate several magnetic steels into a whole. The magnetic steel bonding and fixing tooling includes a non-magnetic upper die, a non-magnetic lower die and a fastener. The non-magnetic upper die and the non-magnetic lower die are assembled detachably. A fastening cavity for accommodating the magnetic steel is arranged between the non-magnetic upper die and the non-magnetic lower die. The fastener fastens the glued magnetic steel into the fastening cavity.

[0006] As a further improved technical scheme of the utility model, the fastener is a push bolt installed on the non-magnetic lower die.

[0007] As a further improved technical scheme of the utility model, the fastener further includes a non-magnetic cushion block installed at the free end of the push bolt.

[0008] As a further improved technical scheme of the utility model, the length of the non-magnetic cushion block is less than or equal to the width of the groove.

[0009] As a further improved technical scheme of the utility model, the non-magnetic lower die is provided with a groove, and the non-magnetic upper die covers the groove to form the fastening cavity.

[0010] As a further improved technical solution of the present utility model, the groove includes a bottom wall, two opposite end walls and two opposite side walls, and the fastener is installed on one of the end walls.

[0011] As a further improved technical solution of the present utility model, a plurality of overflow glue grooves are recessed in the bottom wall at intervals, and a plurality of overflow glue grooves are provided on the non-magnetic upper die corresponding to the overflow glue grooves.

[0012] As a further improved technical solution of the present utility model, the non-magnetic lower die includes a plurality of lower ejection threaded holes penetrating the bottom wall, and the plurality of lower ejection threaded holes and the plurality of overflow glue grooves are arranged alternately; a plurality of upper ejection threaded holes are provided on the non-magnetic upper die corresponding to the lower ejection threaded holes.

[0013] As a further improved technical solution of the present utility model, 4 pieces of the magnetic steel are fastened in the fastening cavity, and the upper and lower surfaces of the adjacent magnetic steel joints respectively correspond to the upper overflow glue groove and the lower overflow glue groove, and the upper and lower surfaces of each magnetic steel respectively correspond to the upper ejection threaded hole and the lower ejection threaded hole.

[0014] As a further improved technical solution of the present utility model, the non-magnetic upper die and the non-magnetic lower die are fastened and disassembled by a plurality of bolts.

[0015] The beneficial effects of the present utility model are as follows: The magnetic steel bonding and fixing tooling integrates the magnetic steel, with high production efficiency, small error, high yield, and is convenient for subsequent assembly of the integrated magnetic steel; and it meets the assembly strength and hardness of the magnetic steel, and can safely and smoothly carry out the magnetic steel assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the magnetic steel bonding and fixing tooling of the present utility model;

[0017] Figure 2 is Figure 1 a schematic diagram from another angle;

[0018] Figure 3 is a schematic structural diagram of the non-magnetic lower die of the magnetic steel bonding and fixing tooling of the present utility model;

[0019] Figure 4 is Figure 3 a schematic diagram from another angle;

[0020] Figure 5 is a schematic structural diagram of the non-magnetic upper die of the magnetic steel bonding and fixing tooling of the present utility model;

[0021] Figure 6 is Figure 5 a schematic diagram from another angle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be described in detail below in conjunction with the embodiments shown in the accompanying drawings. Please refer to the drawings, which show the preferred embodiments of the present utility model. It should be noted, however, that these embodiments are not intended to limit the present utility model, and any equivalent transformation or substitution in terms of function, method, or structure made by those of ordinary skill in the art based on these embodiments shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1 to 6 , the present utility model discloses a magnet bonding and fixing tooling 100 for integrating a plurality of magnets into a whole. The magnet bonding and fixing tooling 100 includes a non-magnetic upper mold 1, a non-magnetic lower mold 2, and a fastener 3. The non-magnetic upper mold 1 and the non-magnetic lower mold 2 are detachably assembled. A fastening cavity 4 for accommodating the magnets is provided between the non-magnetic upper mold 1 and the non-magnetic lower mold 2, and the fastener 3 fastens the glued magnets into the fastening cavity 4. The magnet bonding and fixing tooling 100 integrates the magnets, with high production efficiency, small error, and high yield, facilitating the subsequent assembly of the integrated magnets; and it meets the assembly strength and hardness of the magnets, enabling the safe and smooth assembly of the magnets.

[0024] Furthermore, the fastener 3 is a push bolt 31 installed on the non-magnetic lower mold 2. The fastener 3 further includes a non-magnetic cushion block 32 installed at the free end of the push bolt 31. The length of the non-magnetic cushion block 32 is less than or equal to the width of the fastening cavity 4. The non-magnetic cushion block 32 is located between the push bolt 31 and the magnet, which can protect the magnet when the push bolt 31 pushes the magnet, and its width is less than or equal to the width of the fastening cavity 4, that is, equal to or slightly less than the width of the magnet, so as to ensure stable pushing, improve efficiency and yield.

[0025] Furthermore, the non-magnetic lower mold 2 is provided with a groove 21, and the non-magnetic upper mold 1 covers the groove 21 to form the fastening cavity 4. In this embodiment, the non-magnetic lower mold 2 is in a groove shape, and the non-magnetic upper mold 1 is in a flat shape; the non-magnetic upper mold 1 at least partially covers the groove 21, so that the fastening cavity 4 is formed between the non-magnetic upper mold 1 and the non-magnetic lower mold 2, facilitating the fastening and disassembly of the magnets.

[0026] Furthermore, the groove 21 includes a bottom wall 211, two opposite end walls 212, and two opposite side walls 213. The fastener 3 is installed on one of the end walls 212 to facilitate the fastening of the magnets.

[0027] Further, a plurality of lower overflow glue grooves 22 are concavely provided on the bottom wall 211 at intervals, and a plurality of upper overflow glue grooves 11 are provided on the non-magnetic upper die 1 corresponding to the lower overflow glue grooves 22. The non-magnetic lower die 2 includes a plurality of lower ejection threaded holes 23 penetrating the bottom wall 211, and the plurality of lower ejection threaded holes 23 and the plurality of lower overflow glue grooves 22 are alternately arranged; the non-magnetic upper die 1 is provided with a plurality of upper ejection threaded holes 12 corresponding to the lower ejection threaded holes 23. The upper overflow glue grooves 11 and the lower overflow glue grooves 22 are used to discharge the excess glue after extrusion. The upper ejection threaded holes 12 and the lower ejection threaded holes 23 are used to firmly bond the non-magnetic upper die 1 or the non-magnetic lower die 2 to the magnet after glue bonding, and eject the magnet during disassembly.

[0028] In this embodiment, 4 magnets are fastened in the fastening cavity 4. At the junction of adjacent magnets, the upper overflow glue grooves 11 and the lower overflow glue grooves 22 are respectively corresponding up and down, and the upper and lower surfaces of each magnet respectively correspond to the upper ejection threaded holes 12 and the lower ejection threaded holes 23.

[0029] Further, the non-magnetic upper die 1 and the non-magnetic lower die 2 are fastened and disassembled by a plurality of bolts (not shown). The non-magnetic upper die 1 and the non-magnetic lower die 2 are correspondingly provided with a plurality of bolt holes 61, and fastening and disassembly are achieved through the bolts.

[0030] Please continue to refer to Figures 1 to 3 , taking the integration of 4 magnets as an example. First, the non-magnetic upper die 1 and the non-magnetic lower die 2 are fastened by bolts. Secondly, prepare 4 magnets of the same size. Before putting them into the fastening cavity 4, apply glue on the adjacent surfaces of the magnets, and put them into the fastening cavity 4 one by one, and pay attention to the magnetic pole directions of the magnets. Then, use the pushing bolt 31 to push the glued magnets together and heat or cure the glue to integrate the 4 magnets into a whole. Finally, disassemble the non-magnetic upper die 1 and the non-magnetic lower die 2 to obtain the integrated magnet. By integrating the magnets with the magnet bonding and fixing tooling 100, the production efficiency is relatively high, the error is small, the yield is high, which is convenient for subsequent assembly of the integrated magnets; and it meets the assembly strength and hardness of the magnets, and can safely and smoothly carry out the magnet assembly.

[0031] The magnet bonding and fixing tooling 100 is provided with a non-magnetic cushion block 32 at the free end of the pushing bolt 31 to protect the magnet. The upper overflow glue grooves 11 and the lower overflow glue grooves 22 are provided corresponding to the junctions of adjacent magnets, which are used to discharge the excess glue after extrusion. And the upper ejection threaded holes 12 are provided on the non-magnetic upper die 1, and the lower ejection threaded holes 23 are provided on the non-magnetic lower die 2, which are used to firmly bond the non-magnetic upper die 1 or the non-magnetic lower die 2 to the magnet after glue bonding, and eject the magnet during disassembly.

[0032] It should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0033] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent embodiments or changes made without departing from the technical spirit of the present invention should be included within the protection scope of the present invention.

Claims

1. A magnetic steel bonding and fixing tooling for integrating a plurality of magnetic steels into a whole, characterized in that, The magnetic steel bonding and fixing tooling includes a non-magnetic upper die, a non-magnetic lower die and a fastener. The non-magnetic upper die and the non-magnetic lower die are assembled in a detachable manner. A fastening cavity for accommodating the magnetic steel is provided between the non-magnetic upper die and the non-magnetic lower die. The fastener fastens the glued magnetic steel into the fastening cavity.

2. The magnetic steel bonding and fixing tooling according to claim 1, wherein The fastener is a push bolt installed on the non-magnetic lower die.

3. The magnetic steel bonding and fixing tooling according to claim 2, characterized in that, The fastener further includes a non-magnetic cushion block installed at the free end of the push bolt.

4. The magnetic steel bonding and fixing tooling according to claim 3, characterized in that, The length of the non-magnetic cushion block is less than or equal to the width of the fastening cavity.

5. The magnetic steel bonding and fixing tooling according to claim 1, characterized in that, The non-magnetic lower die is provided with a groove, and the non-magnetic upper die covers the groove to form the fastening cavity.

6. The magnetic steel bonding and fixing tooling according to claim 5, wherein The groove includes a bottom wall, two opposite end walls and two opposite side walls, and the fastener is installed on one of the end walls.

7. The magnetic steel bonding and fixing tooling according to claim 6, wherein A plurality of lower glue overflow grooves are recessed at intervals on the bottom wall, and a plurality of upper glue overflow grooves are provided on the non-magnetic upper die corresponding to the lower glue overflow grooves.

8. The magnetic steel bonding and fixing tooling according to claim 7, wherein The non-magnetic lower die includes a plurality of lower ejector threaded holes penetrating the bottom wall, and the plurality of lower ejector threaded holes and the plurality of lower glue overflow grooves are arranged alternately; the non-magnetic upper die is provided with a plurality of upper ejector threaded holes corresponding to the lower ejector threaded holes.

9. The magnetic steel bonding and fixing tooling according to claim 8, wherein, 4 pieces of the magnetic steel are fastened in the fastening cavity. The upper and lower surfaces of the adjacent magnetic steel at the junction correspond to the upper glue overflow groove and the lower glue overflow groove respectively, and the upper and lower surfaces of each magnetic steel correspond to the upper ejector threaded hole and the lower ejector threaded hole respectively.

10. The magnetic steel bonding and fixing tooling according to claim 1, wherein, The non-magnetic upper die and the non-magnetic lower die are fastened and disassembled by a plurality of bolts.

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