Grinding disc with vacuum adsorption function

Abstract

The utility model belongs to the technical field of grinding discs, and particularly relates to a grinding disc with vacuum adsorption, which comprises a vacuum adsorption grinding disc main body, a grinding disc component is arranged at the bottom of the vacuum adsorption grinding disc main body, and a grinding disc mounting component is mounted on the side of the vacuum adsorption grinding disc main body. A grinding disc limiting assembly is arranged in the grinding disc mounting assembly, the grinding disc assembly comprises a weak-viscosity adhesive surface, a grinding layer and small square grooves, the outer wall of the weak-viscosity adhesive surface is connected with the grinding layer in a cementing mode, the small square grooves are formed in the outer wall of the grinding layer, the weak-viscosity adhesive surface is made of silica gel without adhesive residue, and the small square grooves are formed in the outer wall of the grinding layer. The weak-viscosity adhesive surface is located between the grinding layer and the vacuum adsorption grinding disc main body, and the grinding disc mounting assembly comprises a mounting arc, an arc rotating shaft, a fixed arc and a limiting plate; according to the utility model, the connection strength of the millstone is conveniently enhanced through the weak-viscosity adhesive surface, and the convenience of replacing the millstone is conveniently improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding discs, in particular to a grinding disc with vacuum adsorption. Background Art

[0002] Grinding disc, also known as grinding sheet, is a rotating friction element, which is divided into grinding disc, pulping disc, etc. During the processing of silicon wafers, especially high-speed grinding or polishing, the wear and thermal deformation of the grinding disc make it difficult to ensure the flatness and parallelism of the silicon wafer. The grinding disc made of silicon carbide ceramic has high hardness, small wear of the grinding disc, and the thermal expansion coefficient is basically the same as that of the silicon wafer, so it can be ground and polished at high speed.

[0003] In Chinese Patent 202122674560.3, the utility model discloses a vacuum suction grinding disc, which relates to the field of grinding disc technology, including a magnet suction base, the top of which is fixedly connected to a support frame, the top of which is provided with an air suction plate, and the top of the air suction plate is provided with a limit pin. This vacuum suction grinding disc, through the coordinated use of a contour disc, a grinding disc, a pressing block component, a vacuum channel, a first suction hole, a second suction hole, and a positioning plane, enables the inner cavity of the second suction hole to generate a vacuum suction force, so that the product to be ground is attached to the surface of the positioning plane, and the vacuum suction force of the inner cavity of the second suction hole is used to pre-fix the product to be ground, and the product to be ground is moved downward so that its bottom end contacts the top surface of the contour disc, ensuring that the end surface of the grinding product to be ground is located in the same horizontal plane, and finally the product to be ground is finally fixed by the pressing block component, which reduces the clamping action of the product to be ground, reduces the difficulty of clamping the product to be ground in place, and improves the efficiency of grinding.

[0004] Existing grinding discs are usually of the vacuum adsorption type. The grinding disc is connected to the machine through negative pressure, which is convenient for replacement. However, after using for a long time, the grinding disc will deform, affecting the stability of the negative pressure connection, and the grinding disc will fall off. The negative pressure stability of the machine and the aging degree of the grinding disc base will also affect this type of grinding disc.

[0005] Therefore, a grinding disc with vacuum adsorption is proposed to solve the above problems. Utility Model Content

[0006] In order to make up for the shortcomings of the existing technology, the existing grinding discs are usually of vacuum adsorption type. The grinding discs are connected through the negative pressure of the machine, which is convenient for replacement. However, after the use time increases, the grinding discs will be deformed, affecting the stability of the negative pressure connection, and the grinding discs will fall off. The negative pressure stability of the machine and the aging degree of the grinding disc base will also affect this type of grinding disc.

[0007] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a grinding disc with vacuum adsorption, comprising a vacuum adsorption grinding disc main body, a grinding disc assembly is arranged at the bottom of the vacuum adsorption grinding disc main body, a grinding disc mounting assembly is installed on the side of the vacuum adsorption grinding disc main body, and a grinding disc limiting assembly is arranged inside the grinding disc mounting assembly, and the grinding disc assembly comprises a weakly sticky rubber surface, a grinding layer, and small square grooves.

[0008] Preferably, the outer wall of the weakly sticky adhesive surface is bonded to the grinding layer, and the outer wall of the grinding layer is provided with small square grooves. The weakly sticky adhesive surface is silicone without residual adhesive, and the weakly sticky adhesive surface is located between the grinding layer and the vacuum adsorption grinding disc body.

[0009] Preferably, the grinding disc mounting assembly includes a mounting arc, an arc rotating shaft, a fixed arc, a limit plate, and a positioning magnet. The side of the mounting arc is movably connected to the arc rotating shaft, and the other side of the arc rotating shaft is fixedly connected to the fixed arc. The bottom of the fixed arc is fixedly connected to the limit plate, and the side of the fixed arc is installed with a positioning magnet.

[0010] Preferably, the installation arc forms a magnetic adsorption structure through the arc rotating shaft and the fixed arc, and the installation arc forms a snap-fit ​​structure with the vacuum adsorption grinding disc body through the arc rotating shaft, the fixed arc, the positioning magnet, and the installation arc, and the positioning magnet and the installation arc form a magnetic adsorption structure.

[0011] Preferably, the grinding disc limiting assembly includes a limiting movable rod, a movable rod rotating shaft, a limiting clip, a limiting slot, a first arc-shaped clamp block, a clamp block rotating shaft, a second arc-shaped clamp block, and a clamp block spring. One end of the limiting movable rod is movably connected to the movable rod rotating shaft, and the bottom of the movable rod rotating shaft is fixedly connected to the limiting clip, and the bottom of the limiting clip is provided with a limiting slot, the outer wall of the limiting movable rod is clamped and connected to the first arc-shaped clamp block, and the bottom of the first arc-shaped clamp block is movably connected to the clamp block rotating shaft, the side of the clamp block rotating shaft is fixedly connected to the second arc-shaped clamp block, and the inner wall of the second arc-shaped clamp block is elastically connected to the clamp block spring.

[0012] Preferably, the limiting movable rod forms a rotating structure through a movable rod rotating shaft and a limiting clip, and the limiting clip and the limiting slot form a clamping structure.

[0013] Preferably, the second arc-shaped clamping block forms a clamping structure through the first arc-shaped clamping block, the clamping block rotating shaft and the limiting movable rod, and the first arc-shaped clamping block forms an elastic structure with the second arc-shaped clamping block through a clamping block spring.

[0014] The utility model is beneficial in that:

[0015] 1. The weak-viscous adhesive surface is silicone with no residual adhesive, and the weak-viscous adhesive surface is located between the grinding layer and the vacuum adsorption grinding disc body, which is convenient for adding a weak-viscous adhesive surface on the back of the vacuum adsorption grinding disc body to strengthen the connection between the machine and the grinding disc. The weak-viscous adhesive surface uses silicone with no residual adhesive, and the viscosity is adjusted to an appropriate weak viscosity, which does not affect the convenience of replacement and can enhance the connection strength;

[0016] 2. The installation arc forms a magnetic adsorption structure through the arc rotating shaft and the fixed arc, and the installation arc forms a clamping structure with the vacuum adsorption grinding disc body through the arc rotating shaft, the fixed arc, the positioning magnet, and the installation arc, and the positioning magnet and the installation arc form a magnetic adsorption structure, which is convenient for replacing the grinding disc assembly and effectively prevents the grinding disc assembly from shifting during installation;

[0017] 3. The limiting movable rod forms a rotating structure through the movable rod rotating shaft and the limiting clip, and the limiting clip and the limiting slot form a clamping structure. The second arc-shaped clamping block forms a clamping structure through the first arc-shaped clamping block, the clamping block rotating shaft and the limiting movable rod, and the first arc-shaped clamping block forms an elastic structure with the second arc-shaped clamping block through the clamping block spring, which is convenient for limiting the grinding disc assembly when installing the grinding disc assembly to ensure the stability of the installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model as a whole viewed from the front;

[0020] Figure 2 This is a schematic diagram of the structure of the bottom of the grinding disc assembly of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the cross section of the grinding disc assembly of the utility model;

[0022] Figure 4 It is an enlarged structural schematic diagram of the grinding disc installation assembly of the utility model;

[0023] Figure 5 It is an enlarged structural schematic diagram of the grinding disc limit assembly of the utility model;

[0024] Figure 6 It is a structural schematic diagram of the engaging part of the grinding disc limit assembly of the utility model.

[0025] In the figure: 1. vacuum adsorption grinding disc body; 2. grinding disc assembly; 201. weak sticky rubber surface; 202. grinding layer; 203. small grid groove; 3. grinding disc installation assembly; 301. installation arc; 302. arc shaft; 303. fixed arc; 304. limit plate; 305. positioning magnet; 4. grinding disc limit assembly; 401. limit movable rod; 402. movable rod shaft; 403. limit clip; 404. limit slot; 405. first arc clamp block; 406. clamp block shaft; 407. second arc clamp block; 408. clamp block spring. 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] Embodiment 1

[0028] See also Figure 1 , Figure 2 As shown, a grinding disc with vacuum adsorption includes a vacuum adsorption grinding disc body 1, a grinding disc assembly 2 is arranged at the bottom of the vacuum adsorption grinding disc body 1, a grinding disc mounting assembly 3 is installed on the side of the vacuum adsorption grinding disc body 1, and a grinding disc limiting assembly 4 is arranged inside the grinding disc mounting assembly 3.

[0029] See also Figure 2 , Figure 3 As shown, a grinding disc with vacuum adsorption, a grinding disc assembly 2, includes a weak-sticky adhesive surface 201, a grinding layer 202, and small square grooves 203. The weak-sticky adhesive surface 201 is silicone with no residual adhesive, and the weak-sticky adhesive surface 201 is located between the grinding layer 202 and the vacuum adsorption grinding disc body 1, so that the weak-sticky adhesive surface 201 is added to the back of the vacuum adsorption grinding disc body 1 to strengthen the connection between the machine and the grinding disc. The weak-sticky adhesive surface 201 uses silicone with no residual adhesive, and the viscosity is adjusted to an appropriate weak viscosity, which does not affect the convenience of replacement and can enhance the connection strength.

[0030] See also Figure 4As shown, a grinding disc with vacuum adsorption, a grinding disc mounting assembly 3, includes a mounting arc 301, an arc rotating shaft 302, a fixed arc 303, a limit plate 304, and a positioning magnet 305. The mounting arc 301 forms a magnetic adsorption structure with the fixed arc 303 through the arc rotating shaft 302, and the mounting arc 301 forms a clamping structure with the vacuum adsorption grinding disc main body 1 through the arc rotating shaft 302, the fixed arc 303, and the positioning magnet 305, and the positioning magnet 305 and the mounting arc 301 form a magnetic adsorption structure, which is convenient for replacing the grinding disc assembly 2 and effectively preventing the grinding disc assembly 2 from shifting during installation. The mounting arc 301 is rotated around the arc rotating shaft 302 to open the mounting arc 301, and then the fixed arc 303 is clamped on the outer wall of the vacuum adsorption grinding disc main body 1, and then the mounting arc 301 is closed, and the mounting arc 301 and the fixed arc 303 are fixed under the magnetic adsorption action of the positioning magnet 305.

[0031] See also Figure 5 , Figure 6 As shown, a grinding disc with vacuum adsorption, a grinding disc limiting assembly 4, includes a limiting movable rod 401, a movable rod rotating shaft 402, a limiting clip 403, a limiting slot 404, a first arc-shaped clamping block 405, a clamping block rotating shaft 406, a second arc-shaped clamping block 407, and a clamping block spring 408. The limiting movable rod 401 forms a rotating structure with the limiting clip 403 through the movable rod rotating shaft 402, and the limiting clip 403 and the limiting slot 404 form a clamping structure. The second arc-shaped clamping block 407 forms a clamping structure with the limiting movable rod 401 through the first arc-shaped clamping block 405, the clamping block rotating shaft 406, The first arc-shaped clamp block 405 forms an elastic structure with the second arc-shaped clamp block 407 through the clamp block spring 408, which is convenient for limiting the grinding disc assembly 2 when the grinding disc assembly 2 is installed to ensure the stability of the installation. The limiting movable rod 401 rotates around the movable rod rotating shaft 402. Under the action of the clamp block rotating shaft 406 and the clamp block spring 408, the limiting movable rod 401 can be easily taken out and fixed. When the limiting movable rod 401 coincides with the vertical center axis of the limiting clip 403, it moves downward until the limiting clip 403 is engaged with the limiting slot 404.

[0032] Working principle: First, rotate the installation arc 301 around the arc shaft 302 to open the installation arc 301, then clamp the fixed arc 303 on the outer wall of the vacuum adsorption grinding disc body 1, and then close the installation arc 301. Under the magnetic adsorption action of the positioning magnet 305, fix the installation arc 301 and the fixed arc 303. Then, place the grinding disc assembly 2 at the bottom position of the grinding disc mounting assembly 3. One side of the grinding layer 202 is coated with a weakly sticky adhesive surface 201. The weakly sticky adhesive surface 201 is a silicone with no residual glue, and the viscosity is adjusted to an appropriate weak viscosity, which does not affect the convenience of replacement and can enhance the connection strength. The other side of the grinding layer 202 is arranged in a small grid shape. Then, rotate the limiting movable rod 401 around the movable rod shaft 402 and clamp it. Under the action of the block shaft 406 and the clamping block spring 408, the limit movable rod 401 can be easily taken out and fixed. When the limit movable rod 401 coincides with the vertical center axis of the limit clip 403, it moves downward until the limit clip 403 is engaged with the limit slot 404. At this time, the air pump on the top of the vacuum adsorption grinding disc body 1 is started, and the air pump drives the vacuum adsorption grinding disc body 1, the grinding disc assembly 2, and the grinding disc mounting assembly 3 to descend together. When the grinding disc mounting assembly 3 contacts the plane, the vacuum adsorption grinding disc body 1 continues to descend until it contacts the grinding disc assembly 2 at the bottom of the grinding disc mounting assembly 3. The weak sticky adhesive surface 201 can stick the vacuum adsorption grinding disc body 1, and the vacuum adsorption fixes the grinding disc assembly 2.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A grinding disc with vacuum adsorption, characterized in that: The invention comprises a vacuum adsorption grinding disc body (1), a grinding disc assembly (2) is arranged at the bottom of the vacuum adsorption grinding disc body (1), a grinding disc mounting assembly (3) is installed on the side of the vacuum adsorption grinding disc body (1), and a grinding disc limiting assembly (4) is arranged inside the grinding disc mounting assembly (3); The grinding disc assembly (2) comprises a weakly sticky adhesive surface (201), a grinding layer (202), and small square grooves (203); the outer wall of the weakly sticky adhesive surface (201) is bonded to the grinding layer (202), and the outer wall of the grinding layer (202) is provided with small square grooves (203).

2. A grinding disc with vacuum adsorption according to claim 1, characterized in that: The weakly sticky adhesive surface (201) is a silicone rubber without residual adhesive, and the weakly sticky adhesive surface (201) is located between the grinding layer (202) and the vacuum adsorption grinding disc body (1).

3. The grinding disc with vacuum adsorption according to claim 1, characterized in that: The grinding disc mounting assembly (3) comprises a mounting circular arc (301), a circular arc rotating shaft (302), a fixed circular arc (303), a limiting plate (304), and a positioning magnet (305); the side of the mounting circular arc (301) is movably connected to the circular arc rotating shaft (302), and the other side of the circular arc rotating shaft (302) is fixedly connected to the fixed circular arc (303); the bottom of the fixed circular arc (303) is fixedly connected to the limiting plate (304), and the side of the fixed circular arc (303) is mounted with a positioning magnet (305).

4. The grinding disc with vacuum adsorption according to claim 3, characterized in that: The installation arc (301) forms a magnetic adsorption structure through the arc rotating shaft (302) and the fixed arc (303), and the installation arc (301) forms a snap-fit ​​structure with the vacuum adsorption grinding disc body (1) through the arc rotating shaft (302), the fixed arc (303), and the positioning magnet (305), and the positioning magnet (305) and the installation arc (301) form a magnetic adsorption structure.

5. The grinding disc with vacuum adsorption according to claim 1, characterized in that: The grinding disc limiting assembly (4) comprises a limiting movable rod (401), a movable rod rotating shaft (402), a limiting clip (403), a limiting slot (404), a first arc-shaped clamping block (405), a clamping block rotating shaft (406), a second arc-shaped clamping block (407), and a clamping block spring (408); one end of the limiting movable rod (401) is movably connected to the movable rod rotating shaft (402), and the bottom of the movable rod rotating shaft (402) is fixedly connected to the limiting clip. (403), and a limiting slot (404) is provided at the bottom of the limiting clip (403), the outer wall of the limiting movable rod (401) is snap-connected with a first arc-shaped clamping block (405), and the bottom of the first arc-shaped clamping block (405) is movably connected with a clamping block rotating shaft (406), the side of the clamping block rotating shaft (406) is fixedly connected with a second arc-shaped clamping block (407), and the inner wall of the second arc-shaped clamping block (407) is elastically connected with a clamping block spring (408).

6. The grinding disc with vacuum adsorption according to claim 5, characterized in that: The position-limiting movable rod (401) forms a rotating structure through the movable rod rotating shaft (402) and the position-limiting clip (403), and the position-limiting clip (403) and the position-limiting slot (404) form a clamping structure.

7. The grinding disc with vacuum adsorption according to claim 5, characterized in that: The second arc-shaped clamping block (407) forms a clamping structure through the first arc-shaped clamping block (405), the clamping block rotating shaft (406) and the limiting movable rod (401), and the first arc-shaped clamping block (405) forms an elastic structure with the second arc-shaped clamping block (407) through the clamping block spring (408).

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