Halbach magnet array clamping jig

Abstract

The Halbach magnet array clamping jig comprises a first clamping block and a second clamping block, a clamping through hole is formed in the first clamping block, splicing sliding grooves are formed in the upper surface and the lower surface of the end, corresponding to the second clamping block, of the first clamping block, a splicing inserting plate is arranged on the second clamping block, an opening groove is further formed in the second clamping block, and the splicing inserting plate and the opening groove are matched with each other. When the second clamping block moves towards the first clamping block, the open slot can press the magnet to be clamped in the clamping through hole; therefore, the to-be-clamped magnet can be clamped and compressed, and the to-be-clamped magnet is ensured not to crack before the bonding glue is cured; splicing sliding grooves are formed in the upper surface and the lower surface of a first clamping block, an upper splicing inserting plate and a lower splicing inserting plate are correspondingly arranged on a second clamping block, the splicing inserting plates can reliably slide in the splicing sliding grooves, the structure is compact, guiding is reliable, a magnet to be clamped can be reliably clamped and fixed by moving the second clamping block, and the clamping effect is good. And the magnet is prevented from cracking before the glue is cured.

Description

TECHNICAL FIELD

[0001] The utility model relates to magnet assembly technology especially a Halbach magnet array clamping jig. BACKGROUND

[0002] Halbach array (Halbach Array) is a kind of magnet structure, it is approximate ideal structure in engineering, through the permanent magnet of different magnetization direction according to certain order arrangement, the magnetic field of magnet array one side is significantly enhanced and the magnetic field of the other side is significantly weakened, the goal is to generate the strongest magnetic field in working area with least amount of magnet.Halbach array magnet assembly is manufactured first, then magnetizes according to specified magnetization direction, then carries out Halbach array assembly, when assembling, glue is used to bond each magnetized magnet together to form the magnetic assembly of specific magnetic field distribution.Magnet assembly needs to overcome the repulsive force between each magnet, and after pressing and bonding, combined magnet needs to be pressure-keeping clamped to wait for glue solidification to make each magnet firmly bonded;If pressure-keeping clamping operation time is insufficient, and glue is not completely solidified, it will cause unreliable bonding to cause combined magnet to crack;Pressure-keeping operation on assembly jig will occupy assembly jig, and production efficiency is reduced. SUMMARY

[0003] The utility model discloses a kind of Halbach magnet array clamping jigs, to solve the problem of unreliable bonding and low production efficiency in the process of existing Halbach magnet array assembly.

[0004] To solve the above problems, the utility model provides a kind of Halbach magnet array clamping jig, including first clamping block and second clamping block, the first clamping block is equipped with the clamping through-hole of the shape adaptation with the magnet to be clamped, the upper surface of the one end corresponding to the first clamping block and the second clamping block, lower surface is equipped with splicing sliding groove, the second clamping block is equipped with the splicing plug-in board corresponding to the splicing sliding groove, the second clamping block is also equipped with the opening slot corresponding to the clamping through-hole, when the second clamping block moves to the first clamping block, the opening slot can press the magnet to be clamped in the clamping through-hole.

[0005] The Halbach magnet array clamping jig provided by the utility model also has the following technical features:

[0006] Further, locking assembly is also provided between the first clamping block and the second clamping block, after the opening slot of the second clamping block presses the magnet to be clamped, the locking assembly can lock the second clamping block on the first clamping block.

[0007] Further, one end of the first clamping block corresponding to the second clamping block is provided with a guide plug, and the second clamping block is provided with a guide socket corresponding to the guide plug.

[0008] Further, the locking assembly comprises a locking bolt, the locking bolt comprises a threaded shank and a nut; the second clamping block is provided with a bolt hole penetrating the guide socket, the diameter of the nut is larger than the diameter of the bolt hole, the guide plug is provided with a threaded hole corresponding to the bolt hole, and the threaded shank of the locking bolt penetrates the bolt hole and is inserted into the threaded hole to connect and lock the first clamping block and the second clamping block.

[0009] Further, the locking assembly further comprises a locking spring, the locking spring is sleeved on the threaded shank, one end of the locking spring abuts against the end of the guide plug, and the other end of the locking spring abuts against the bottom end of the guide socket.

[0010] Further, the first clamping block and the second clamping block are both provided with air-permeable grooves corresponding to the bonding seams of the to-be-clamped magnet.

[0011] Further, the first clamping block or the second clamping block is further provided with a positioning hole corresponding to a positioning column on an assembling jig.

[0012] Further, the to-be-clamped magnet has a cylindrical outer contour; the clamping through hole is circular, and the opening groove is semicircular.

[0013] The novel Halbach magnet array clamping jig has the following beneficial effects: when used, the to-be-clamped magnet is first inserted into the clamping through hole on the first clamping block, then the second clamping block is moved so that the opening groove of the second clamping block abuts against and compresses the to-be-clamped magnet, thereby clamping and compressing the to-be-clamped magnet, ensuring that the to-be-clamped magnet will not crack before the bonding glue solidifies; the upper surface and the lower surface of the first clamping block are provided with splicing sliding grooves, and the second clamping block is correspondingly provided with upper and lower splicing plugs, the splicing plugs can reliably slide in the splicing sliding grooves, the structure is compact and the guidance is reliable, the to-be-clamped magnet can be reliably clamped and fixed by moving the second clamping block, and the magnet is prevented from cracking before the glue solidifies; by using the clamping jig, the pressure maintaining process of the combined magnet on the assembling jig can be omitted, the occupation of the assembling jig is reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 FIG. 1 is a structural schematic view of a Halbach magnet array clamping jig according to an embodiment of the novel Halbach magnet array clamping jig;

[0015] Figure 2 FIG. 2 is another perspective view of the Halbach magnet array clamping jig in FIG. 1; Figure 1 FIG. 2 is another perspective view of the Halbach magnet array clamping jig in FIG. 1;

[0016] Figure 3 for Figure 1 the exploded view of the Halbach magnet array clamping jig in

[0017] Figure 4 for Figure 1 the schematic view of the Halbach magnet array clamping jig in use in DETAILED DESCRIPTION

[0018] Hereinafter, the present application will be described in detail with reference to the accompanying drawings and in conjunction with embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0019] As Figures 1 to 4 shown in the embodiment of the Halbach magnet array clamping jig of the present application, the Halbach magnet array clamping jig comprises a first clamping block 10 and a second clamping block 20, the first clamping block 10 is provided with a clamping through hole 101 which is adapted to the shape of the magnet to be clamped, the upper surface and the lower surface of the corresponding end of the first clamping block 10 are provided with a splicing sliding groove 11, the second clamping block 20 is provided with a splicing plug plate 21 corresponding to the splicing sliding groove 11, the second clamping block 20 is further provided with an opening groove 201 corresponding to the clamping through hole 101, preferably, the end of the splicing plug plate 21 is formed with the opening groove 201; when the second clamping block 20 moves towards the first clamping block 10, the opening groove 201 can abut and compress the magnet to be clamped 100 in the clamping through hole 101; in use, the magnet to be clamped 100 is first inserted into the clamping through hole 101 on the first clamping block 10, then the second clamping block 20 is moved to make the opening groove 201 of the second clamping block 20 abut and compress the magnet to be clamped 100, thereby the magnet to be clamped 100 can be clamped and compressed, ensuring that the magnet to be clamped 100 will not crack before the adhesive cures; by setting the splicing sliding groove 11 on the upper surface and the lower surface of the first clamping block 10, and correspondingly setting the upper and lower splicing plug plates 21 on the second clamping block 20, the splicing plug plate 21 can reliably slide in the splicing sliding groove 11, the structure is compact and the guidance is reliable, the magnet to be clamped can be reliably clamped and fixed by moving the second clamping block, preventing the magnet from cracking before the adhesive cures; by using the clamping jig, the pressure maintaining process of the combined magnet on the assembly jig can be omitted, the occupation of the assembly jig is reduced, and the production efficiency is improved.

[0020] In an embodiment of the present application, preferably, a locking assembly 30 is further provided between the first clamping block 10 and the second clamping block 20, after the opening groove 201 of the second clamping block 20 compresses the magnet to be clamped, the locking assembly 30 can lock the second clamping block 20 on the first clamping block 10, so that the opening groove 201 of the second clamping block 20 remains in the state of abutting and compressing the magnet to be clamped 100.

[0021] In one embodiment of the present application, preferably, one end of the first clamping block 10 corresponding to the second clamping block 20 is also provided with a guide plug 12, and the second clamping block 20 is provided with a guide socket 22 corresponding to the guide plug 12; so that the second clamping block can reliably slide relative to the first clamping block.

[0022] In one embodiment of the present application, preferably, the locking assembly 30 comprises a locking bolt 31, the locking bolt 31 comprises a threaded shank 311 and a nut 312; the second clamping block 20 is provided with a bolt hole through the guide socket 22, the diameter of the nut 312 is larger than the diameter of the bolt hole, the guide plug 12 is provided with a threaded hole 121 corresponding to the bolt hole, and the threaded shank 311 of the locking bolt 31 penetrates through the bolt hole and is inserted into the threaded hole 121 to connect and lock the first clamping block 10 and the second clamping block 20; in particular, the nut 312 of the locking bolt 31 abuts against the side edge of the second clamping block, and the position of the end of the locking bolt 31 in the bolt hole can be adjusted by rotating the locking bolt 31, so that the position of the first clamping block and the second clamping block can be adjusted; in the above embodiment, the end of the locking bolt 31 does not protrude out of the bolt hole into the clamping through hole 101, thereby avoiding damage to the clamped magnet 100 caused by the top of the locking bolt 31.

[0023] In the above embodiment of the present application, the splicing sliding groove, the splicing plug, the guide plug and the guide socket are ingeniously arranged, so that the second clamping block can reliably slide relative to the first clamping block; the locking bolt is installed by using the guide plug and the guide socket, and the structure is compact, the appearance is simple, and the locking is convenient and reliable.

[0024] In one embodiment of the present application, preferably, the locking assembly 30 further comprises a locking spring 32, the locking spring 32 is sleeved on the threaded shank 311, one end of the locking spring 32 abuts against the end of the guide plug 12, and the other end of the locking spring 32 abuts against the bottom end of the guide socket 22; the locking spring prevents the second clamping block from shaking relative to the first clamping block by the tension of the locking spring, and the locking spring can also provide a part of the elastic force of the clamping, so that the clamping force can be moderately adjusted.

[0025] In one embodiment of the present application, preferably, the first clamping block 10 and the second clamping block 20 are both provided with a ventilation groove 102 corresponding to the bonding seam of the clamped magnet 100, so as to facilitate the contact of the bonding glue with air and solidification.

[0026] In one embodiment of the present application, preferably, the first clamping block 10 or the second clamping block 20 is also provided with a positioning hole 202 corresponding to the positioning column 41 on the assembly jig 40; as shown in Figure 4 the first clamping block 10 or the second clamping block 20 can be conveniently used with the assembly jig 40 to clamp the clamped magnet 100.

[0027] In one embodiment of the present application, preferably, the outer profile of the magnet 40 to be clamped is cylindrical; the clamping through hole 101 is circular, and the opening slot 201 is semicircular; it can be understood that the shape of the clamping through hole and the opening slot can be adjusted according to the outer profile shape of the magnet to be clamped.

[0028] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A Halbach magnet array clamping jig comprising a first clamping block and a second clamping block, characterized by, The first clamping block is provided with a clamping through hole matched with the shape of the magnet to be clamped, and the upper surface and the lower surface of the corresponding end of the first clamping block are provided with a splicing sliding groove, the second clamping block is provided with a splicing plug plate corresponding to the splicing sliding groove, and the second clamping block is further provided with an opening slot corresponding to the clamping through hole; when the second clamping block moves towards the first clamping block, the opening slot can press the magnet to be clamped in the clamping through hole.

2. The Halbach magnet array clamping jig of claim 1, wherein: The first clamping block and the second clamping block are further provided with a locking assembly, and the locking assembly can lock the second clamping block on the first clamping block after the opening slot of the second clamping block presses the magnet to be clamped.

3. The Halbach magnet array clamping jig of claim 2, wherein: The corresponding end of the first clamping block and the second clamping block is further provided with a guide plug, and the second clamping block is provided with a guide plug hole corresponding to the guide plug.

4. The Halbach magnet array clamping jig of claim 3, wherein: The locking assembly comprises a locking bolt, and the locking bolt comprises a threaded shank and a nut; the second clamping block is provided with a bolt hole penetrating the guide plug hole, the diameter of the nut is greater than the diameter of the bolt hole, the guide plug is provided with a threaded hole corresponding to the bolt hole, and the threaded shank of the locking bolt penetrates the bolt hole and is inserted into the threaded hole to connect and lock the first clamping block and the second clamping block.

5. The Halbach magnet array clamping jig of claim 4, wherein: The locking assembly further comprises a locking spring, the locking spring is sleeved on the threaded shank, one end of the locking spring abuts against the end of the guide plug, and the other end of the locking spring abuts against the bottom end of the guide plug hole.

6. The Halbach magnet array clamping jig of claim 1, wherein: The first clamping block and the second clamping block are both provided with a ventilation groove corresponding to the adhesive joint of the magnet to be clamped.

7. The Halbach magnet array clamping jig of claim 1, wherein: The first clamping block or the second clamping block is further provided with a positioning hole corresponding to a positioning column on the assembly jig.

8. The Halbach magnet array clamping jig of claim 1, wherein: The outer contour of the magnet to be clamped is cylindrical, the clamping through hole is circular, and the opening slot is semicircular.

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