Grinding wheel tooth protection device of wafer thinning machine

Abstract

The utility model discloses a wafer thinning machine grinding wheel tooth protection device which comprises an installation seat and an installation groove, a grinding wheel base and grinding wheel teeth are placed in the installation groove, and a fixing disc is connected in the installation groove. The fixed disc is connected with a cover body; a clamping groove is formed in the fixed disc; a clamping block matched with the clamping groove is arranged at the lower end of the cover body; concave platforms are arranged at the opening of the mounting groove and the upper end of the cover body; the heights of the bottom ends of the two concave tables are the same; a fixing mechanism is further connected into the mounting groove; and the grinding wheel base is fixedly connected with the center position of the mounting groove through a fixing mechanism. The fixing mechanism is arranged in the mounting groove, the center position of the grinding wheel base is fixed and clamped, the stability of the grinding wheel base is improved, the cover body is connected to the fixing disc, the grinding wheel base and grinding wheel teeth in the fixing disc are protected and shielded, the concave table is arranged at the upper end, and the cover body can be conveniently mounted and dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding wheels of wafer thinning machines, in particular to a tooth protection device for grinding wheels of wafer thinning machines. Background Art

[0002] At present, when disassembling and assembling the grinding wheel of a wafer thinning machine, the grinding teeth of the grinding wheel are directly exposed outside, and there is no protection during the disassembly and assembly process of the grinding wheel. This will cause that when disassembling and assembling the grinding wheel, operators need to pay attention not to touch the grinding teeth of the grinding wheel during operation, and the operation is restricted, which affects the efficiency. During the disassembly and assembly process of the grinding wheel, there is a risk that the grinding teeth of the grinding wheel will be collided, resulting in contamination, damage or fracture. Moreover, the grinding wheel is relatively expensive. If it is contaminated, damaged or fractured due to improper disassembly and assembly, the scrapping of the grinding wheel will increase the production cost of the company. Content of the Utility Model

[0003] The purpose of the utility model is to solve the problems in the prior art, and a tooth protection device for grinding wheels of wafer thinning machines is proposed.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A tooth protection device for grinding wheels of wafer thinning machines, including a mounting base and a mounting groove. A grinding wheel base and grinding teeth are placed in the mounting groove. A fixing plate is connected in the mounting groove. A cover body is connected to the fixing plate. A clamping groove is provided on the fixing plate. A clamping block matching with the clamping groove is provided at the lower end of the cover body. Concave platforms are provided at the opening of the mounting groove and the upper end of the cover body, and the bottom heights of the two concave platforms are the same. A fixing mechanism is also connected in the mounting groove. The grinding wheel base is fixedly connected with the central position of the mounting groove through the fixing mechanism.

[0006] Preferably, the fixing mechanism includes a turntable and a support plate. A first fixing rod is fixedly connected between the turntable and the support plate. A movable block is also movably connected between the turntable and the support plate. A push rod is connected to the movable block. One end of the push rod is connected with a support column fixedly connected with the fixing plate. The other end of the push rod is hinged with a fixing block. The other end of the fixing block is connected with a push plate.

[0007] Preferably, there are multiple first fixing rods and push plates. And the multiple first fixing rods and push plates are arranged in an annular array with the center of the turntable as the center of the circle. The multiple push plates move inward simultaneously by being pushed by the first fixing rods.

[0008] Preferably, the fixing mechanism further includes a disc. The fixing plate is in a ring shape. The disc is fixedly arranged inside the fixing plate. And an annular groove is formed between the outer wall of the disc and the inner wall of the fixing plate. The lower end of the turntable is arranged in the annular groove and is movably connected.

[0009] Preferably, a toothed disc engaged with the outer side of the turntable is connected; a second fixing rod is connected to the toothed disc; the second fixing rod passes upward through the mounting seat and is connected with a knob; the turntable and the toothed disc are controlled to rotate by the knob.

[0010] Preferably, a window communicating with the annular groove is provided on the fixed disc; the toothed disc is engaged with the turntable through the window.

[0011] Preferably, an installation cavity is left between the outer wall of the support disc and the inner wall of the installation groove; and the thickness of the installation cavity matches the thickness of the cover body.

[0012] Preferably, the push plate is arc-shaped; and the outer wall of the push plate fits the inner walls of the turntable and the support disc.

[0013] Compared with the prior art, the present utility model provides a grinding wheel tooth protection device for a wafer thinning machine, having the following beneficial effects:

[0014] In the grinding wheel tooth protection device for the wafer thinning machine, by arranging a fixing mechanism in the installation groove, the turntable and the support disc can be driven to rotate by rotating the knob, so that the push rod rotates inwards with the support column as the center, and then the push plate squeezes the grinding wheel base inwards, fixing and clamping the center position of the grinding wheel base, improving its stability. Then, a cover body is connected to the fixed disc to protect and shield the internal grinding wheel base and grinding wheel teeth, and a concave platform is arranged at the upper end, which is convenient for the installation and disassembly of the cover body.

[0015] Parts not involved in the device are the same as or can be implemented by the prior art. The structure of the present utility model is simple and the operation is convenient. Description of the Drawings

[0016] Figure 1 is a structural schematic diagram of the present utility model;

[0017] Figure 2 is a partial structural schematic diagram of the present utility model;

[0018] Figure 3 is a structural schematic diagram of the cover body in the present utility model;

[0019] Figure 4 is a structural schematic diagram of the fixed disc in the present utility model;

[0020] Figure 5 is a structural schematic diagram of the fixing mechanism in the present utility model;

[0021] Figure 6 is a sectional view of the fixing mechanism in the present utility model.

[0022] In the figure: mounting base 10, mounting groove 11, grinding wheel base 12, grinding wheel teeth 13, fixing plate 21, card slot 211, window 212, annular groove 213, cover body 30, mounting cavity 31, concave platform 32, clamping block 33, fixing mechanism 40, disk 41, turntable 42, support disk 43, first fixing rod 44, movable block 45, push rod 46, support column 47, fixing block 48, push plate 49, gear disk 51, second fixing rod 52, knob 53. Specific embodiments

[0023] The following will refer to Figures 1-4 , and introduce the specific embodiments of the grinding wheel tooth protection device of the wafer thinning machine in the present utility model, including a mounting base 10 and a mounting groove 11. A grinding wheel base 12 and grinding wheel teeth 13 are placed in the mounting groove 11. A fixing plate 21 is connected in the mounting groove 11; a cover body 30 is connected to the fixing plate 21; a card slot 211 is provided on the fixing plate 21; a clamping block 33 matching the card slot 211 is provided at the lower end of the cover body 30; concave platforms 32 are provided at the opening of the mounting groove 11 and the upper end of the cover body 30; and the bottom ends of the two concave platforms 32 are at the same height. By setting the concave and convex parts 32, it is convenient to install and extract the cover body 30.

[0024] A fixing mechanism 40 is also connected in the mounting groove 11; the grinding wheel base 12 is fixedly connected to the central position of the mounting groove 11 through the fixing mechanism 40. The fixing mechanism 40 includes a turntable 42 and a support disk 43; a first fixing rod 44 is fixedly connected between the turntable 42 and the support disk 43; a movable block 45 is also movably connected between the turntable 42 and the support disk 43; a push rod 46 is connected to the movable block 45; one end of the push rod 46 is connected to a support column 47 fixedly connected to the fixing plate 21; the other end of the push rod 46 is hinged to a fixing block 48; the other end of the fixing block 48 is connected to a push plate 49. The push plate 49 is arc-shaped; and the outer wall of the push plate 49 fits the inner walls of the turntable 42 and the support disk 43.

[0025] By rotating the turntable 42 and the support disk 43, the push rod rotates inwards with the support column 47 as the center, so that the push plate squeezes the grinding wheel base 12 inwards, and fixes and clamps the central position of the grinding wheel base 12.

[0026] To facilitate the stable fixation of the grinding wheel base 12, a plurality of first fixing rods 44 and push plates 49 are provided; and the plurality of first fixing rods 44 and push plates 49 are arranged in an annular arrangement with the center of the turntable 42 as the center; the plurality of push plates 49 are pushed to move inwards simultaneously through the first fixing rods 44, and clamp the grinding wheel base 12 in multiple directions.

[0027] The fixing mechanism 40 further includes a disc 41; the fixing disc 21 is annular; the disc 41 is fixedly arranged inside the fixing disc 21; and an annular groove 213 is formed between the outer wall of the disc 41 and the inner wall of the fixing disc 21; the lower end of the turntable 42 is arranged in the annular groove 213 and is movably connected.

[0028] To facilitate the control of the rotation of the turntable 42, a meshing gear disc 51 is connected to the outside of the turntable 42; a second fixing rod 52 is connected to the gear disc 51; the second fixing rod 52 passes upward through the mounting seat 10 and is connected with a knob 53; the rotation of the turntable 42 and the gear disc 51 is controlled by the knob 53.

[0029] A window 212 communicating with the annular groove 213 is provided on the fixing disc 21; the gear disc 51 meshes with the turntable 42 through the window 212.

[0030] To prevent the support disc 43 from blocking the installation position of the cover body 30, an installation cavity 31 is left between the outer wall of the support disc 43 and the inner wall of the installation groove 11; and the thickness of the installation cavity 31 matches the thickness of the cover body 30.

[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A grinding wheel tooth protection device for a wafer thinning machine, comprising a mounting base (10) and a mounting groove (11), wherein a grinding wheel base (12) and grinding wheel teeth (13) are placed in the mounting groove (11), and is characterized in that, A fixing plate (21) is connected inside the installation groove (11); a cover body (30) is connected to the fixing plate (21); a clamping groove (211) is provided on the fixing plate (21); a clamping block (33) matching the clamping groove (211) is provided at the lower end of the cover body (30); concave platforms (32) are provided at the opening of the installation groove (11) and the upper end of the cover body (30); and the bottom ends of the two concave platforms (32) are at the same height; a fixing mechanism (40) is further connected inside the installation groove (11); the grinding wheel base (12) is fixedly connected to the central position of the installation groove (11) through the fixing mechanism (40).

2. The tooth protection device for a wafer thinning machine according to claim 1, wherein The fixing mechanism (40) includes a turntable (42) and a support plate (43); a first fixing rod (44) is fixedly connected between the turntable (42) and the support plate (43); a movable block (45) is movably connected between the turntable (42) and the support plate (43); a push rod (46) is connected to the movable block (45); one end of the push rod (46) is connected to a support column (47) fixedly connected to the fixing plate (21); the other end of the push rod (46) is hinged to a fixing block (48); and the other end of the fixing block (48) is connected to a push plate (49).

3. The tooth protection device for the grinding wheel of a wafer thinning machine according to claim 2, characterized in that, A plurality of the first fixing rods (44) and the push plates (49) are provided; and the plurality of first fixing rods (44) and the push plates (49) are arranged in an annular pattern centered on the center of the turntable (42); the plurality of push plates (49) are pushed to move inward simultaneously through the first fixing rods (44).

4. The tooth protection device for a wafer thinning machine according to claim 2, characterized in that, The fixing mechanism (40) further includes a disc (41); the fixing plate (21) is in a ring shape; the disc (41) is fixedly arranged inside the fixing plate (21); and an annular groove (213) is formed between the outer wall of the disc (41) and the inner wall of the fixing plate (21); the lower end of the turntable (42) is arranged inside the annular groove (213) and is movably connected.

5. The abrasive wheel tooth protection device for a wafer thinning machine according to claim 2, characterized in that, A toothed disc (51) engaged with each other is connected to the outside of the turntable (42); a second fixing rod (52) is connected to the toothed disc (51); the second fixing rod (52) passes upward through the mounting seat (10) and is connected to a knob (53); the turntable (42) and the toothed disc (51) are controlled to rotate through the knob (53).

6. The grinding wheel tooth protection device of a wafer thinning machine according to claim 5, characterized in that, A window (212) communicating with the annular groove (213) is provided on the fixing plate (21); the toothed disc (51) is engaged with the turntable (42) through passing through the window (212).

7. The grinding wheel tooth protection device for a wafer thinning machine according to claim 2, characterized in that, An installation cavity (31) is left between the outer wall of the support plate (43) and the inner wall of the installation groove (11); and the thickness of the installation cavity (31) matches the thickness of the cover body (30).

8. The tooth protection device for the grinding wheel of a wafer thinning machine according to claim 2, wherein The push plate (49) is arc-shaped; and the outer wall of the push plate (49) fits the inner walls of the turntable (42) and the support plate (43).

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