NdFeB magnetic ring vacuum hot pressing device with stress relieving function

Abstract

The utility model belongs to the technical field of neodymium-iron-boron magnet ring processing, and particularly relates to a neodymium-iron-boron magnet ring vacuum hot-pressing device with a stress relieving function, which comprises supporting legs, a forming structure mounted at the tops of the supporting legs, a feeding structure mounted in the middle of the right side of the forming structure, and a stress relieving structure mounted in the middle of the left side of the forming structure. The stress eliminating structure comprises a discharging unit and an eliminating unit, the eliminating unit comprises an asynchronous motor, a transmission part is installed at the output end of the asynchronous motor, a gear ring is connected to the outer surface of the transmission part, an eliminating cylinder is installed in the gear ring, and an ultrasonic generator is installed at the top of the outer surface of the eliminating cylinder. According to the neodymium-iron-boron magnetic ring vacuum hot pressing device with the stress relieving function, the asynchronous motor drives the transmission part and the gear ring to transmit, so that the relieving barrel is subjected to angle rotation adjustment, and the ultrasonic generator can perform multi-angle stress relieving on the formed magnetic ring; and the stress in the magnetic ring can be better eliminated through the stress elimination mode of the ultrasonic waves.

Description

Technical Field

[0001] The utility model relates to the technical field of NdFeB magnetic ring processing, in particular to a NdFeB magnetic ring vacuum hot pressing device with a stress elimination function. Background Art

[0002] With the rapid development of high-performance permanent magnet motors, the requirements for multi-pole magnetic rings are becoming increasingly higher. Among them, NdFeB anisotropic magnets have received widespread attention in the industry because of their superior magnetic properties to NdFeB isotropic magnets.

[0003] In the existing production of NdFeB magnetic rings, multiple devices need to be linked from adding materials to taking out the finished products. The raw materials must first be pressed into hot embryos on one machine, and then processed into finished products on a second device. Such a process requires multiple workers to operate and multiple manual molding, resulting in high labor costs and low production efficiency; secondly, multiple manual molding makes product quality uncontrollable and unstable.

[0004] For example, a NdFeB magnetic ring vacuum hot pressing device with stress relief function disclosed in Chinese patent CN115138845B, after the raw materials are processed into NdFeB magnetic rings, the cooling system injects cooling coolant into the outer ring and the inner ring through the pipeline, and the coolant slowly cools the NdFeB magnetic ring. During this process, the current is still passed through the magnetic spring, and the outer vortex plate and the inner vortex plate continue to generate heat, and the heat is used to heat the coolant to prevent the outer ring and the inner ring from cooling too quickly and causing the quality of the NdFeB magnetic ring to be damaged. While heating the coolant, the screw rotates, and the dial moves the paddle through the gear teeth, causing the outer ring and the inner ring to vibrate, and the NdFeB magnetic ring is stress-relieved and demolded through vibration, so that the NdFeB magnetic ring is separated from the outer ring and the inner ring.

[0005] However, the method of body vibration used in the prior art to eliminate stress of the formed magnetic ring can eliminate stress on the surface of the body, but cannot quickly and comprehensively eliminate stress inside the body.

[0006] Therefore, we urgently need a NdFeB magnetic ring vacuum hot pressing device with stress relief function. Utility Model Content

[0007] The purpose of the utility model is to provide a NdFeB magnetic ring vacuum hot pressing device with a stress relief function, so as to solve the problem that the stress of the magnetic ring after molding is eliminated by the body vibration method used in the prior art proposed in the above background technology, which can eliminate the stress on the surface of the body, but cannot quickly and comprehensively eliminate the stress inside the body.

[0008] To achieve the above object, the utility model provides the following technical solutions: a NdFeB magnetic ring vacuum hot pressing device with stress relief function, comprising a support leg, a molding structure is installed on the top of the support leg, a feeding structure is installed in the middle of the right side of the molding structure, and a stress relief structure is installed in the middle of the left side of the molding structure;

[0009] The stress relief structure includes a discharging unit and a relief unit;

[0010] The elimination unit includes an asynchronous motor, a transmission part is installed at the output end of the asynchronous motor, a gear ring is connected to the outer surface of the transmission part, an elimination cylinder is installed inside the gear ring, bearings are installed on the outer surface of the elimination cylinder near the left and right ends, and an ultrasonic generator is installed on the top of the outer surface of the elimination cylinder.

[0011] Preferably, the mounting and discharging unit comprises a mounting plate, a placing table is arranged on the top of the mounting plate, and a discharging cover is arranged on the left side of the placing table.

[0012] Preferably, the top surface of the mounting plate is detachably connected to the bottom of the asynchronous motor, the front and back surfaces of the mounting plate are fixedly connected to the outer surfaces of the supporting legs, the discharging cover is hinged to the left side of the elimination cylinder through a hinge, and the placement table is arranged in the middle of the elimination cylinder. The right side of the placement table is fixedly connected to the left side of the hot press box, and the convex chute in the middle of the top surface of the placement table is on the same horizontal line as the convex chute on the left and right sides of the hot press box.

[0013] Preferably, the molding structure includes a workbench, a hot press box is installed on the top surface of the workbench near the right side, a hydraulic cylinder is installed in the middle of the top surface of the hot press box, an upper mold is installed at the output end of the hydraulic cylinder, a damping rod is arranged at the bottom of the upper mold, a mounting seat is installed at the top of the damping rod, and a lower mold is installed on the top surface of the mounting seat.

[0014] Preferably, the bottom surface of the workbench is fixedly connected to the top of the support leg, through holes are provided in the middle of the left and right sides of the hot press box, the bottom end of the damping rod is fixedly connected to the top surface of the workbench, the middle of the bottom surface of the lower mold and the middle of the top surface of the mounting seat are provided with a convex groove inner wall for sliding connection, and the middle of the left side of the hot press box is fixedly connected to the right end of the elimination cylinder. A connection port is provided on the back of the hot press box to connect with a vacuum equipment to ensure vacuum hot pressing of the equipment.

[0015] Preferably, the feeding structure comprises a feeding box, a feeding cover is installed on the right side of the feeding box, an electric push rod is installed in the middle of the right side of the feeding cover, and a pushing block is installed at the output end of the electric push rod.

[0016] Preferably, the left side of the feed box is hinged to the feed cover, the left side of the push block abuts against the middle part of the right side of the lower mold, and the left side of the feed box is fixedly connected to the middle part of the right side of the hot press box. The feed cover can ensure sealing when it is closed.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The NdFeB magnetic ring vacuum hot pressing device with stress relief function, through the setting of stress relief structure, uses an asynchronous motor to drive the transmission part and the gear ring for transmission, so that the relief cylinder can be rotated and adjusted in angle, so that the ultrasonic generator can perform multi-angle stress relief on the formed magnetic ring, and the ultrasonic stress relief method can better eliminate the stress inside the magnetic ring.

[0019] 2. The NdFeB magnetic ring vacuum hot pressing device with stress relief function can avoid excessive downward pressure or excessive downward pressure during hot pressing, thereby preventing damage to the mold or product, by setting the molding structure and the feeding structure and utilizing the damping rod. At the same time, the lower mold and the mounting seat are detachable, and the electric push rod and the pushing block are used to push the lower mold, thereby facilitating the unloading of the formed product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the appearance of the utility model;

[0021] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0022] Figure 3 It is an enlarged view of the internal structure of the stress relief structure of the utility model;

[0023] Figure 4 This is an enlarged view of the internal structure of the hot pressing forming structure of the utility model;

[0024] Figure 5 This is an enlarged view of the feeding and discharging structure of the utility model.

[0025] In the figure: 1, supporting leg; 101, working table; 102, hot press box; 103, hydraulic cylinder; 104, upper mold; 105, damping rod; 106, mounting seat; 107, lower mold; 201, mounting plate; 202, asynchronous motor; 203, transmission part; 204, gear ring; 205, eliminating cylinder; 206, bearing; 207, ultrasonic generator; 208, discharge cover; 209, placing table; 301, feed box; 302, feed cover; 303, electric push rod; 304, push block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 , the utility model provides a technical solution: Example

[0028] A NdFeB magnetic ring vacuum hot pressing device with stress relief function comprises a support leg 1, a molding structure is installed on the top of the support leg 1, a feeding structure is installed in the middle of the right side of the molding structure, and a stress relief structure is installed in the middle of the left side of the molding structure.

[0029] The stress relief structure includes a discharging unit and a relief unit. The relief unit includes an asynchronous motor 202, a transmission member 203 is installed at the output end of the asynchronous motor 202, a gear ring 204 is connected to the outer surface of the transmission member 203, a relief cylinder 205 is installed inside the gear ring 204, bearings 206 are installed on the outer surface of the relief cylinder 205 near the left and right ends, and an ultrasonic generator 207 is installed on the top of the outer surface of the relief cylinder 205. The discharging unit includes a mounting plate 201, a placement table 209 is arranged on the top of the mounting plate 201, and a discharging cover 208 is arranged on the left side of the placement table 209.

[0030] The top surface of the mounting plate 201 is detachably connected to the bottom of the asynchronous motor 202, the front and back of the mounting plate 201 are fixedly connected to the outer surface of the support leg 1, the discharge cover 208 is hinged to the left side of the elimination cylinder 205 through a hinge, and the placement table 209 is arranged in the middle of the elimination cylinder 205.

[0031] By setting up the stress relief structure, the asynchronous motor 202 is used to drive the transmission member 203 and the gear ring 204 for transmission, so that the relief cylinder 205 can be rotated and adjusted in angle, so that the ultrasonic generator 207 can perform multi-angle stress relief on the formed magnetic ring, and the ultrasonic stress relief method can better eliminate the stress inside the magnetic ring.

[0032] When stress is eliminated on the formed magnetic ring, the asynchronous motor 202 is started to drive the transmission member 203 for transmission, and the output end of the asynchronous motor 202 drives the rotating shaft and the gear to rotate, thereby utilizing the meshing connection between the gear and the gear ring 204 to drive the elimination cylinder 205 to rotate, and utilizing the connection between the bearing 206 and the inside of the mounting hole opened in the middle of the left side of the top surface of the workbench 101 to assist the elimination cylinder 205 to rotate stably, thereby driving the ultrasonic generator 207 to swing back and forth, thereby adjusting the angle, so as to facilitate the use of ultrasonic waves generated by the ultrasonic generator 207 at multiple angles to eliminate the stress inside the magnetic ring. Example

[0033] On the basis of the first embodiment, the molding structure includes a workbench 101, a hot press box 102 is installed on the top surface of the workbench 101 near the right side, a hydraulic cylinder 103 is installed in the middle of the top surface of the hot press box 102, an upper mold 104 is installed at the output end of the hydraulic cylinder 103, a damping rod 105 is arranged at the bottom of the upper mold 104, a mounting seat 106 is installed at the top of the damping rod 105, and a lower mold 107 is installed on the top surface of the mounting seat 106. The bottom surface of the workbench 101 is fixedly connected to the top of the support leg 1, through holes are provided in the middle of the left and right sides of the hot press box 102, the bottom end of the damping rod 105 is fixedly connected to the top surface of the workbench 101, the middle of the bottom surface of the lower mold 107 is provided with the inner wall of a convex slide groove in the middle of the top surface of the mounting seat 106 for sliding connection, and the middle of the left side of the hot press box 102 is fixedly connected to the right end of the elimination cylinder 205.

[0034] The feeding structure includes a feeding box 301, a feeding cover 302 is installed on the right side of the feeding box 301, an electric push rod 303 is installed in the middle of the right side of the feeding cover 302, and a push block 304 is installed at the output end of the electric push rod 303. The left side of the feeding box 301 is hinged to the feeding cover 302, the left side of the push block 304 abuts against the middle of the right side of the lower mold 107, and the left side of the feeding box 301 is fixedly connected to the middle of the right side of the hot press box 102.

[0035] By setting the molding structure and the feeding structure and utilizing the damping rod 105, it is possible to avoid excessive downward pressure or excessive downward pressure during hot pressing, thereby preventing damage to the mold or product. At the same time, by utilizing the detachability of the lower mold 107 and the mounting seat 106, the electric push rod 303 and the pushing block 304 are used to push the lower mold 107, thereby facilitating the unloading of the molded product.

[0036] The feed cover 302 is opened to facilitate the loading of raw materials, and then the electric push rod 303 is started to drive the pushing block 304 to push the lower mold 107, so that it is clamped with the mounting seat 106, and then the hydraulic cylinder 103 is started to drive the upper mold 104 to hot-press the product. After molding, the electric push rod 303 is started to drive the pushing block 304 to push the lower mold 107 through the through hole opened on the side of the hot press box 102 and enter the top of the placement table 209, so as to facilitate the loading and unloading of the pressing and molding.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A NdFeB magnetic ring vacuum hot pressing device with stress relief function, comprising a support leg (1), characterized in that: A molding structure is installed on the top of the support leg (1), a feeding structure is installed in the middle of the right side of the molding structure, and a stress relief structure is installed in the middle of the left side of the molding structure; The stress relief structure includes a discharging unit and a relief unit; The elimination unit comprises an asynchronous motor (202), a transmission member (203) is installed at the output end of the asynchronous motor (202), a gear ring (204) is connected to the outer surface of the transmission member (203), an elimination tube (205) is installed inside the gear ring (204), bearings (206) are installed on the outer surface of the elimination tube (205) near the left and right ends, and an ultrasonic generator (207) is installed on the top of the outer surface of the elimination tube (205).

2. The NdFeB magnetic ring vacuum hot pressing device with stress relief function according to claim 1, characterized in that: The mounting and discharging unit comprises a mounting plate (201), a placement platform (209) is arranged on the top of the mounting plate (201), and a discharging cover (208) is arranged on the left side of the placement platform (209).

3. The NdFeB magnetic ring vacuum hot pressing device with stress relief function according to claim 2, characterized in that: The top surface of the mounting plate (201) is detachably connected to the bottom of the asynchronous motor (202); the front and back surfaces of the mounting plate (201) are fixedly connected to the outer surface of the support leg (1); the discharge cover (208) is hinged to the left side of the elimination cylinder (205) via a hinge; and the placement table (209) is arranged in the middle of the elimination cylinder (205).

4. The NdFeB magnetic ring vacuum hot pressing device with stress relief function according to claim 1, characterized in that: The molding structure comprises a workbench (101), a hot press box (102) is installed on the top surface of the workbench (101) near the right side, a hydraulic cylinder (103) is installed in the middle of the top surface of the hot press box (102), an upper mold (104) is installed at the output end of the hydraulic cylinder (103), a damping rod (105) is arranged at the bottom of the upper mold (104), a mounting seat (106) is installed at the top end of the damping rod (105), and a lower mold (107) is installed on the top surface of the mounting seat (106).

5. The NdFeB magnetic ring vacuum hot pressing device with stress relief function according to claim 4, characterized in that: The bottom surface of the workbench (101) is fixedly connected to the top of the support leg (1); through holes are provided in the middle of the left and right sides of the hot press box (102); the bottom end of the damping rod (105) is fixedly connected to the top surface of the workbench (101); the middle of the bottom surface of the lower mold (107) is slidably connected to the inner wall of a convex sliding groove provided in the middle of the top surface of the mounting seat (106); and the middle of the left side of the hot press box (102) is fixedly connected to the right end of the elimination cylinder (205).

6. The NdFeB magnetic ring vacuum hot pressing device with stress relief function according to claim 1, characterized in that: The feeding structure comprises a feeding box (301), a feeding cover (302) is installed on the right side of the feeding box (301), an electric push rod (303) is installed in the middle of the right side of the feeding cover (302), and a pushing block (304) is installed at the output end of the electric push rod (303).

7. The NdFeB magnetic ring vacuum hot pressing device with stress relief function according to claim 6, characterized in that: The left side of the feed box (301) is hinged to the feed cover (302), the left side of the push block (304) is in contact with the middle of the right side of the lower mold (107), and the left side of the feed box (301) is fixedly connected to the middle of the right side of the hot press box (102).

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