Vacuum chuck clamp for grinding rare earth permanent magnetic material

Abstract

The vacuum chuck clamp comprises a chuck base and a chuck body, an annular groove and a plurality of sets of vacuum through holes are formed in the upper surface of the chuck body, an adsorption mechanism is arranged on the chuck body, and the vacuum through holes are communicated with the annular groove. The adsorption mechanism comprises a plurality of groups of second rubber suction cup bodies and a plurality of groups of first rubber suction cup bodies; through the designed adsorption mechanism, not only can annular products be adsorbed and fixed, but also products with rough surfaces can be adsorbed and fixed, and products with larger sizes can be fixed, and the position of the first rubber suction cup body can be adjusted by adjusting the position of the extension plate, so that the suction cup is suitable for the products with the larger sizes; when a product with the rough surface is adsorbed and fixed through the first rubber suction cup body and the second rubber suction cup body, the vacuum suction cup clamp can deform and be tightly attached to the product with the rough surface under strong suction force, and the practicability of the vacuum suction cup clamp is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum chuck fixtures, and particularly relates to a vacuum chuck fixture for grinding and processing rare earth permanent magnet materials. Background Technique

[0002] When machining rare earth permanent magnet materials, grinding machines are generally used. For rare earth permanent magnet materials, especially sintered neodymium iron boron, surface grinding machines are widely used. Whether it is a rectangular table surface grinding machine or a circular table surface grinding machine, a vacuum chuck fixture is used to fix the materials to facilitate the grinding and processing of rare earth permanent magnet materials.

[0003] Chinese Patent Application No. 201521092184.5 discloses a vacuum chuck fixture for grinding and processing permanent magnet materials. This patent fixes the product through a negative pressure vacuum fixture, avoiding the product being magnetized, which is beneficial to improving the surface cleanliness of the product during subsequent electroplating, enhancing the uniformity of the coating during electroplating, eliminating the influence of the residual magnetic field on the coating, and improving the adhesion of the coating. When fixing the product, the ring-shaped product is adsorbed and fixed in the annular groove by the vacuum suction force at the vacuum through-hole. However, the above-mentioned vacuum adsorption fixture can only adsorb and fix ring-shaped products. When fixing other shaped products, it cannot be adsorbed and fixed by the vacuum chuck fixture, reducing the applicability of the vacuum chuck fixture. Moreover, when fixing products with rough surfaces, it is easy to have the problem of insecure adsorption and fixation, affecting the practicality of the vacuum chuck fixture. Therefore, we propose a vacuum chuck fixture for grinding and processing rare earth permanent magnet materials. Content of the Utility Model

[0004] The purpose of the utility model is to provide a vacuum chuck fixture for grinding and processing rare earth permanent magnet materials, so as to solve the problems raised in the above background technique that the vacuum adsorption fixture can only adsorb and fix ring-shaped products, and when fixing other shaped products, it cannot be adsorbed and fixed by the vacuum chuck fixture, reducing the applicability of the vacuum chuck fixture, and when fixing products with rough surfaces, it is easy to have the problem of insecure adsorption and fixation.

[0005] To achieve the above object, the present utility model provides the following technical solution: a vacuum chuck fixture for grinding rare earth permanent magnet materials, comprising a chuck base and a chuck body. The upper surface of the chuck body is respectively provided with an annular groove and a plurality of groups of vacuum through holes. An adsorption mechanism is arranged on the chuck body. The adsorption mechanism includes a plurality of groups of second rubber suction cup bodies and a plurality of groups of first rubber suction cup bodies. The bottom of the second rubber suction cup body is fixedly provided with an external thread ring. Two arc-shaped backing plates are fixedly arranged on the outer wall of the external thread ring. An internal thread ring is fixedly arranged on the inner wall of the vacuum through hole. The bottom of the external thread ring is threadedly connected with the internal thread ring. The bottom of the arc-shaped backing plate is in contact with the upper surface of the internal thread ring. A sub-vacuum pump is arranged on one side of the chuck base. Two connecting hoses are fixedly arranged on the sub-vacuum pump. A plurality of adjusting members for the first rubber suction cup body to move are arranged on the chuck body.

[0006] Preferably, an external thread ring is fixedly arranged at the bottom of the first rubber suction cup body. An internal thread cylinder is threadedly connected to the outside of the external thread ring. The end of the connecting hose is fixedly connected to the internal thread cylinder.

[0007] Preferably, the adjusting member includes a mounting plate and an extension plate. A moving groove is formed inside the mounting plate. One end of the extension plate penetrates into the inside of the moving groove. The internal thread cylinder is fixed inside the other end of the extension plate. A screw hole is also formed inside the mounting plate. A screw is arranged inside the screw hole. The working end of the screw extends to the surface of the extension plate.

[0008] Preferably, two fixing plates are fixedly arranged at the bottom of the mounting plate. The fixing plates are fixedly connected to the chuck body by first bolts. An upper plate is fixedly arranged at the top of the sub-vacuum pump. The upper plate is fixedly connected to the chuck base by second bolts.

[0009] Preferably, a main vacuum pump is fixedly arranged on one side of the chuck base. An air suction groove is formed inside the chuck base.

[0010] Preferably, the air suction groove is communicated with the vacuum through holes. The annular groove is communicated with the vacuum through holes.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] (1) Through the designed adsorption mechanism of the present utility model, it can not only adsorb and fix annular products, but also adsorb and fix products with rough surfaces, and can also fix products with larger sizes. By adjusting the position of the extension plate, the position of the first rubber suction cup body can be adjusted to adapt to products with larger sizes. When the first rubber suction cup body and the second rubber suction cup body adsorb and fix products with rough surfaces, they will deform and tightly adhere to the products with rough surfaces under strong suction force, increasing the practicality of the vacuum suction cup fixture.

[0013] (2) Through the combination of the designed fixed plate, first bolt, upper plate and second bolt of the present utility model, when adsorbing and fixing a batch of small-sized products, the adjusting part, the first rubber suction cup body and the auxiliary vacuum pump can be removed to facilitate the fixation of small-sized products. When fixing large-sized products, just install them back. Description of the Drawings

[0014] Figure 1 is a structural schematic diagram of the present utility model;

[0015] Figure 2 is a bottom view structural schematic diagram of the suction cup base of the present utility model;

[0016] Figure 3 is a structural schematic diagram of the second rubber suction cup body of the present utility model;

[0017] Figure 4 is of the present utility model Figure 3 enlarged structural schematic diagram of part A in;

[0018] Figure 5 is a structural schematic diagram of the adjusting part of the present utility model;

[0019] In the figure: 100, suction cup base; 101, suction cup body; 102, main vacuum pump; 103, annular groove; 104, vacuum through hole; 200, mounting plate; 201, extension plate; 202, first rubber suction cup body; 203, second rubber suction cup body; 204, auxiliary vacuum pump; 205, connecting hose; 206, external thread ring; 207, external thread circle; 208, internal thread circle; 209, arc-shaped cushion plate; 210, screw; 211, internal thread cylinder; 300, fixed plate; 301, upper plate. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Example 1

[0022] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 ,the present utility model provides a technical solution: a vacuum chuck fixture for grinding rare earth permanent magnet materials, including a chuck base 100 and a chuck body 101. An annular groove 103 and multiple groups of vacuum through holes 104 are respectively formed on the upper surface of the chuck body 101. When in use, the vacuum through holes 104 have vacuum suction. An adsorption mechanism is arranged on the chuck body 101. The adsorption mechanism includes multiple groups of second rubber suction cup bodies 203 and multiple groups of first rubber suction cup bodies 202. An external thread ring 207 is fixedly arranged at the bottom of the second rubber suction cup body 203. Two arc-shaped backing plates 209 are fixedly arranged on the outer wall of the external thread ring 207. The external thread ring 207 can be tightened to a proper height position through the arc-shaped backing plates 209. An internal thread ring 208 is fixedly arranged on the inner wall of the vacuum through hole 104. The bottom of the external thread ring 207 is threadedly connected with the internal thread ring 208. The bottom of the arc-shaped backing plate 209 contacts the upper surface of the internal thread ring 208. A secondary vacuum pump 204 is arranged on one side of the chuck base 100. The secondary vacuum pump 204 can generate vacuum suction on the first rubber suction cup body 202. Two connecting hoses 205 are fixedly arranged on the secondary vacuum pump 204. Multiple adjusting parts for the movement of the first rubber suction cup body 202 are arranged on the chuck body 101;

[0023] An external thread ring 206 is fixedly arranged at the bottom of the first rubber suction cup body 202. An internal thread cylinder 211 is threadedly connected to the outside of the external thread ring 206. The end of the connecting hose 205 is fixedly connected to the internal thread cylinder 211. The connecting hose 205 has flexibility and can move along with the movement of the first rubber suction cup body 202.

[0024] Example 2

[0025] On the basis of Example 1, please refer to Figure 1 、 Figure 2 and Figure 5 ,the adjusting part includes a mounting plate 200 and an extension plate 201. A moving groove is formed inside the mounting plate 200. One end of the extension plate 201 penetrates into the inside of the moving groove. When adjusting the extension plate 201, the end of the extension plate 201 will move inside the moving groove. The internal thread cylinder 211 is fixed inside the other end of the extension plate 201. A screw hole is also formed inside the mounting plate 200. A screw rod 210 is arranged inside the screw hole. The working end of the screw rod 210 extends to the surface of the extension plate 201.

[0026] Through the designed adsorption mechanism, the utility model can not only adsorb and fix annular products, but also adsorb and fix products with rough surfaces, and can also fix products with larger sizes. By adjusting the position of the extension plate 201, the position of the first rubber suction cup body 202 can be adjusted to adapt to products with larger sizes. When the first rubber suction cup body 202 and the second rubber suction cup body 203 adsorb and fix products with rough surfaces, they will deform and closely adhere to the products with rough surfaces under strong suction, increasing the practicability of the vacuum suction cup fixture.

[0027] Embodiment 3

[0028] On the basis of Embodiment 2, please refer to Figure 1 、 Figure 2 and Figure 3 Two groups of fixing plates 300 are fixedly arranged at the bottom of the mounting plate 200. The fixing plates 300 are fixedly connected to the suction cup body 101 through the first bolts. The top of the auxiliary vacuum pump 204 is fixedly provided with an upper plate 301, and the upper plate 301 is fixedly connected to the suction cup base 100 through the second bolts.

[0029] Through the combination of the designed fixing plates 300, first bolts, upper plate 301 and second bolts, when adsorbing and fixing a batch of small-sized products, the adjusting parts, the first rubber suction cup body 202 and the auxiliary vacuum pump 204 can be removed to facilitate the fixing of small-sized products. When fixing large-sized products, they can be reinstalled.

[0030] In this embodiment, a main vacuum pump 102 is fixedly arranged on one side of the suction cup base 100. The main vacuum pump 102 can make the second rubber suction cup body 203 generate suction. An air suction groove is formed inside the suction cup base 100.

[0031] In this embodiment, the air suction groove is communicated with the vacuum through hole 104, and the annular groove 103 is communicated with the vacuum through hole 104.

[0032] The working principle and usage process of the utility model:

[0033] When the utility model is in use and the product needs to be adsorbed and fixed, first screw the external thread ring 207 at the bottom of the second rubber suction cup body 203 into the internal thread ring 208. Subsequently, the lower surfaces of the two groups of arc-shaped backing plates 209 on the outer wall at the bottom of the external thread ring 207 will contact the upper surface of the internal thread ring 208. At this time, the second rubber suction cup body 203 can be tightened. If the product has a large size, turn the screw 210 outward to loosen it, then move the extension plate 201 outward to an appropriate position to drive the first rubber suction cup body 202 to move. After moving, turn the screw 210 in the direction close to the mounting plate 200 to tighten it. At this time, the position of the first rubber suction cup body 202 is adjusted, and then the product can be adsorbed and fixed through the first rubber suction cup body 202 and the second rubber suction cup body 203, for products with rough surfaces, smooth surfaces, large sizes or annular shapes. When adsorbing and fixing a product with a rough surface, the first rubber suction cup body 202 and the second rubber suction cup body 203 will deform and closely adhere to the product with a rough surface under the powerful vacuum suction force, so as to adsorb and fix the product with a rough surface;

[0034] When adsorbing and fixing many small-sized products, unscrew the first bolt on the fixing plate 300 and the second bolt on the upper plate 301, and then the mounting plate 200, the first rubber suction cup body 202 and the auxiliary vacuum pump 204 can be removed. When adsorbing and fixing a larger-sized product, operate according to the reverse principle described above and install it back to its original position.

[0035] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A vacuum chuck fixture for grinding rare earth permanent magnet materials, comprising a chuck base (100) and a chuck body (101), wherein the upper surface of the chuck body (101) is respectively provided with an annular groove (103) and a plurality of vacuum through holes (104), characterized in that: The suction cup body (101) is provided with a suction mechanism, which comprises a plurality of groups of second rubber suction cup bodies (203) and a plurality of groups of first rubber suction cup bodies (202); an external thread ring (207) is fixedly provided at the bottom of the second rubber suction cup body (203); two groups of arc-shaped pads (209) are fixedly provided on the outer wall of the external thread ring (207); an internal thread ring (208) is fixedly provided on the inner wall of the vacuum through hole (104); the bottom of the external thread ring (207) is connected to the internal thread ring (208) by a thread; the bottom of the arc-shaped pad (209) contacts the upper surface of the internal thread ring (208); an auxiliary vacuum pump (204) is provided on one side of the suction cup base (100); two groups of connecting hoses (205) are fixedly provided on the auxiliary vacuum pump (204); and a plurality of adjustment members for moving the first rubber suction cup body (202) are provided on the suction cup body (101).

2. The vacuum chuck fixture for grinding rare earth permanent magnet materials according to claim 1, characterized in that: An external threaded ring (206) is fixedly provided at the bottom of the first rubber suction cup body (202), the exterior of the external threaded ring (206) is threadedly connected to an internal threaded cylinder (211), and the end of the connecting hose (205) is fixedly connected to the internal threaded cylinder (211).

3. The vacuum chuck fixture for grinding rare earth permanent magnet materials according to claim 2, characterized in that: The adjusting member comprises a mounting plate (200) and an extension plate (201); a movable groove is provided inside the mounting plate (200); one end of the extension plate (201) penetrates into the movable groove; the internal threaded tube (211) is fixed inside the other end of the extension plate (201); a screw hole is also provided inside the mounting plate (200); a screw rod (210) is provided inside the screw hole; the working end of the screw rod (210) extends to the surface of the extension plate (201).

4. The vacuum chuck fixture for grinding rare earth permanent magnet materials according to claim 3, characterized in that: Two groups of fixing plates (300) are fixedly arranged at the bottom of the mounting plate (200), and the fixing plates (300) are fixedly connected to the suction cup body (101) via a first bolt. An upper plate (301) is fixedly arranged on the top of the auxiliary vacuum pump (204), and the upper plate (301) is fixedly connected to the suction cup base (100) via a second bolt.

5. The vacuum chuck fixture for grinding rare earth permanent magnet materials according to claim 1, characterized in that: A main vacuum pump (102) is fixedly arranged on one side of the suction cup base (100), and an air suction groove is provided inside the suction cup base (100).

6. The vacuum chuck fixture for grinding rare earth permanent magnet materials according to claim 5, characterized in that: The air suction groove is in communication with the vacuum through hole (104), and the annular groove (103) is in communication with the vacuum through hole (104).

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