Manufacturing mold for sintered magnet

Abstract

The utility model belongs to the technical field of manufacturing dies, particularly relates to a manufacturing die for a sintered magnet, and aims to solve the problem that the pressed sintered magnet needs to be manually taken out after the sintered magnet is pressed by the existing part of manufacturing dies for the sintered magnet. The lower die is fixedly installed on the bottom end face of the bearing frame, the warping assembly is arranged in the lower die, a pressing cavity is formed in the position, located at the warping assembly, of the lower die, and an upper die is arranged above the upper die. The pressing cavity is sealed through the pressing plate of the warping assembly, after the pressing cavity of the lower die is filled with powder of the sintered magnet, the upper die presses the pressing cavity downwards to achieve pressing of the sintered magnet, after pressing is completed, the warping plate is manually pressed, one end of the warping plate jacks up the pressing cavity, and then the sintering magnet is pressed. In this way, the pressing plate below the pressing cavity is lifted, and the sintered magnet pressed in the pressing cavity is lifted out through lifting of the pressing plate, so that workers can conveniently collect the sintered magnet.

Description

Technical Field

[0001] The utility model relates to a manufacturing mold, in particular to a manufacturing mold for sintered magnets, and belongs to the technical field of manufacturing molds. Background Art

[0002] Sintered magnets are widely used in various fields such as medical treatment, transportation, communication, and manufacturing due to their high strength, high energy density, and high stability. Different types of sintered magnets, such as metal sintered magnets, ceramic sintered magnets, nitride sintered magnets, etc., play an important role in their respective application fields. The preparation process involves pressing the magnetic powder material into shape and then sintering it at high temperature to form a metallurgical bond between the particles.

[0003] In the prior art, for example, a high-performance NdFeB magnetic ring forming mold disclosed in announcement number CN204867402U is used to remove the outer plastic bag with water or oil stains after static pressing, reverse demagnetize, and finally remove the remaining plastic packaging and the inner mold from the demagnetized compact, and place it in a sintering furnace for vacuum sintering. There is still a ceramic column embedded in the center of the sintered blank, which can be removed by gently tapping.

[0004] However, in actual use, during the use of the above-mentioned high-performance NdFeB magnetic ring forming mold, although it can reduce the connection between the sintered magnet ring and the mold through the ceramic material of the ceramic column, when taking out the sintered magnet, it is still necessary to turn the entire mold over and pour out the magnetic ring body, which makes it more troublesome to collect. Utility Model Content

[0005] The utility model provides a manufacturing mold for sintered magnets to solve the problem that during the use of the above-mentioned high-performance NdFeB magnetic ring forming mold, although the ceramic material of the ceramic column can reduce the connection between the sintered magnet ring and the mold, when taking out the sintered magnet, it is still necessary to turn the entire mold over and pour out the magnetic ring body, which makes it more troublesome to collect the soil compactness.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: a manufacturing mold for sintered magnets, comprising a carrier, a lower mold fixedly mounted on the bottom end surface of the carrier, and a lift-off assembly inside the lower mold, wherein the lower mold is provided with a pressing cavity at the lift-off assembly, and an upper mold is arranged above the lower mold;

[0007] The lifting assembly includes a pressure plate, which is arranged on the bottom end surface of the pressing cavity and fits tightly between the pressure plate and the pressing cavity. A pressure rod is fixedly installed below the pressure plate, and a seesaw is arranged below the pressure rod. The side of the seesaw away from the pressure rod passes through the lower mold.

[0008] As a further solution of the utility model: a pressing groove matching the pressing rod is provided at the connection between the lower mold and the pressing rod, the pressing groove is provided inside the lower mold, and the rocker is located on one side of the pressing plate and penetrates the pressing groove.

[0009] As a further solution of the utility model: a fixing groove matching the seesaw is provided at the connection between the lower mold and the seesaw, the fixing groove is provided on the lower mold, and a rotating shaft is provided on the side of the seesaw close to the fixing groove, and the seesaw is rotatably installed inside the lower mold via the rotating shaft.

[0010] As a further solution of the utility model: positioning rods are fixedly installed around the lower mold, one end of the positioning rods passes through the upper mold, and a compression spring is arranged on the outer side of the positioning rods.

[0011] As a further solution of the utility model: a fixing plate is fixedly installed above the upper mold, a hydraulic cylinder is fixedly installed on the bottom end surface of the fixing plate, and the telescopic end of the hydraulic cylinder is fixedly installed on the upper mold.

[0012] As a further solution of the utility model: a slide rail is provided at the connection between the carrier frame and the upper mold, a slider is slidably installed inside the slide rail, an insert plate is fixedly installed at the front end of the slider, and the upper mold forms an insert structure between the insert plate and the slider.

[0013] As a further solution of the utility model: a pressing block is fixedly installed at the corresponding position of the lower mold and the pressing cavity, and the pressing block is fixedly installed on the bottom end surface of the lower mold.

[0014] The beneficial effects of the utility model are:

[0015] 1. After the sintered magnet carried in the pressing cavity is pressed or sintered, the seesaw can be manually pressed to make one end of the seesaw move up and down in an arc shape inside the pressing groove, and lift the pressure rod, so that the pressure rod lifts the pressure plate, so that the sintered magnet in the pressing cavity can be demoulded simply and conveniently, and it is also convenient for workers to collect;

[0016] 2. The positioning rod is provided to ensure the stability of the upper mold and the lower mold during the pressing process, and the upper mold moves inside the slide rail through the slider, so that the movement trajectory of the upper mold will not deviate during the pressing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the internal section of the lower mold of the utility model;

[0019] Figure 3It is a structural schematic diagram of the lifting component of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the slide rail and the slider of the utility model.

[0021] In the figure: 1. Carrying frame; 2. Lower mold; 3. Lifting assembly; 301. Pressing plate; 302. Pressing rod; 303. Rocker; 4. Pressing cavity; 5. Upper mold; 6. Pressing groove; 7. Fixing groove; 8. Positioning rod; 9. Compression spring; 10. Fixing plate; 11. Hydraulic cylinder; 12. Slide rail; 13. Sliding block; 14. Insert plate. DETAILED DESCRIPTION

[0022] 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. Embodiment 1

[0023] like Figures 1 to 4 As shown, a manufacturing mold for sintered magnets includes a carrier 1, a lower mold 2 fixedly mounted on the bottom end surface of the carrier 1, and a lift-up assembly 3 inside the lower mold 2, the lower mold 2 is provided with a pressing cavity 4 located at the lift-up assembly 3, an upper mold 5 is arranged above the lower mold 2, a pressing block is fixedly mounted at a position corresponding to the lower mold 2 and the pressing cavity 4, and the pressing block is fixedly mounted on the bottom end surface of the lower mold 2;

[0024] The lifting assembly 3 includes a pressing plate 301, which is arranged on the bottom end surface of the pressing cavity 4, and the pressing plate 301 is tightly fitted with the pressing cavity 4. A pressing rod 302 is fixedly installed below the pressing plate 301, and a seesaw 303 is arranged below the pressing rod 302. The side of the seesaw 303 away from the pressing rod 302 passes through the lower mold 2, and a pressing groove 6 matching the pressing rod 302 is opened at the connection between the lower mold 2 and the pressing rod 302. The pressing groove 6 is opened inside the lower mold 2, and the seesaw 303 is located on one side of the pressing plate 301 and passes through the pressing groove 6. A fixed groove 7 matching the seesaw 303 is opened at the connection between the lower mold 2 and the seesaw 303, the fixed groove 7 is opened on the lower mold 2, and a rotating shaft is arranged on the side of the seesaw 303 close to the fixed groove 7, and the seesaw 303 is rotatably installed inside the lower mold 2 through the rotating shaft. Embodiment 2

[0025] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0026] Positioning rods 8 are fixedly installed around the lower mold 2, one end of the positioning rods 8 passes through the upper mold 5, and a compression spring 9 is arranged on the outside of the positioning rods 8. The positioning rods 8 can achieve a tight pressing effect between the upper mold 5 and the lower mold 2 after the upper mold 5 is pressed down for a distance.

[0027] A fixed plate 10 is fixedly installed above the upper mold 5, and a hydraulic cylinder 11 is fixedly installed on the bottom end surface of the fixed plate 10. The telescopic end of the hydraulic cylinder 11 is fixedly installed on the upper mold 5. A slide rail 12 is provided at the connection between the carrier frame 1 and the upper mold 5. A slider 13 is slidably installed inside the slide rail 12. A plug-in plate 14 is fixedly installed at the front end of the slider 13. The upper mold 5 forms an insertion structure through the plug-in plate 14 and the slider 13. The hydraulic cylinder 11 can push the upper mold 5 to move, and the upper mold 5 drives the slider 13 to move inside the slide rail 12. In this way, the movement of the slider 13 on the slide rail 12 can achieve the fixity of the overall movement of the upper mold 5 during the downward pressing process, thereby avoiding loose pressing between the upper mold 5 and the lower mold 2.

[0028] Working principle: First, insert the upper mold 5 and the insert plate 14 of the slider 13, and after the insertion is completed, use the fixing bolts to fix the two, then bolt the telescopic end of the hydraulic cylinder 11 to the upper mold 5, and then press and sinter. Place the magnet powder inside the pressing plate 301 and the pressing cavity 4, and then use the hydraulic cylinder 11 to push the upper mold 5, so that the upper mold 5 drives the slider 13 to move, and the slider 13 moves inside the slide rail 12, so that the downward movement trajectory of the upper mold 5 can be fixed to prevent the upper mold 5 and the lower mold 2 from deviating, and then the upper mold 5 is pressed down to a After being positioned, the top end of the positioning rod 8 will penetrate the upper mold 5, so that the positioning rod 8 will strengthen the fixing effect of the upper mold 5, and then the upper mold 5 will be continuously pressed down to move the pressing block of the upper mold 5 into the pressing cavity 4, and press the sintered magnet powder to form the required workpiece. When sintering or pressing is completed, the seesaw 303 is manually pressed to make one end of the seesaw 303 move up and down in an arc shape inside the pressing groove 6, and lift the pressing rod 302, so that the pressing rod 302 lifts the pressing plate 301, so that the sintered magnet inside the pressing cavity 4 can be demolded simply and conveniently, and it is also convenient for workers to collect.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A manufacturing mold for sintered magnets, characterized in that: It comprises a support frame (1), a lower mold (2) fixedly mounted on the bottom end surface of the support frame (1), and a lifting assembly (3) inside the lower mold (2), wherein the lower mold (2) is provided with a pressing cavity (4) located at the lifting assembly (3), and an upper mold (5) is arranged above the lower mold (2); The lifting assembly (3) comprises a pressing plate (301), wherein the pressing plate (301) is arranged on the bottom end surface of the pressing cavity (4), and the pressing plate (301) and the pressing cavity (4) are tightly fitted, a pressing rod (302) is fixedly installed below the pressing plate (301), a seesaw (303) is arranged below the pressing rod (302), and the side of the seesaw (303) away from the pressing rod (302) passes through the lower mold (2).

2. A manufacturing mold for sintered magnets according to claim 1, characterized in that: A pressing groove (6) matching the pressing rod (302) is provided at the connection between the lower mold (2) and the pressing rod (302); the pressing groove (6) is provided inside the lower mold (2); and the seesaw (303) is located on one side of the pressing plate (301) and penetrates the pressing groove (6).

3. A manufacturing mold for sintered magnets according to claim 1, characterized in that: A fixing groove (7) matching the seesaw (303) is provided at the connection between the lower mould (2) and the seesaw (303); the fixing groove (7) is provided on the lower mould (2); and a rotating shaft is provided on a side of the seesaw (303) close to the fixing groove (7); the seesaw (303) is rotatably mounted inside the lower mould (2) via the rotating shaft.

4. A manufacturing mold for sintered magnets according to claim 1, characterized in that: Positioning rods (8) are fixedly mounted on all four sides of the lower mold (2), one end of the positioning rod (8) passes through the upper mold (5), and a compression spring (9) is arranged on the outer side of the positioning rod (8).

5. A manufacturing mold for sintered magnets according to claim 1, characterized in that: A fixing plate (10) is fixedly mounted above the upper mold (5), a hydraulic cylinder (11) is fixedly mounted on the bottom end surface of the fixing plate (10), and a telescopic end of the hydraulic cylinder (11) is fixedly mounted on the upper mold (5).

6. A manufacturing mold for sintered magnets according to claim 1, characterized in that: A slide rail (12) is provided at the connection between the carrier frame (1) and the upper mold (5), a slider (13) is slidably mounted inside the slide rail (12), an insert plate (14) is fixedly mounted at the front end of the slider (13), and the upper mold (5) forms an insert structure with the slider (13) through the insert plate (14).

7. A manufacturing mold for sintered magnets according to claim 1, characterized in that: A pressing block is fixedly mounted at a position of the lower mold (2) corresponding to the pressing cavity (4); the pressing block is fixedly mounted on the bottom end surface of the lower mold (2).

Images