Device for chamfering inner hole of toughened glass

Abstract

A chamfering device for an inner hole of tempered glass comprises a workbench, a vacuum suction cup is arranged on the workbench and used for adsorbing glass, and a positioning block is arranged on the edge of the workbench and used for positioning the side edge of the glass; the grinding mechanism is arranged above the workbench and comprises a tool rest, a guide groove is formed in the lower portion of the tool rest, grinding tools are slidably arranged in the guide groove in a bilateral symmetry mode, and the lower portions of the opposite ends of the grinding tools are machined to form slopes. The jacking mechanism is arranged below the workbench and comprises a jacking block, an integrated rotating shaft is arranged on the lower portion of the jacking block, and the rotating shaft is rotationally arranged in the positioning shaft sleeve through a bearing. According to the device, the grinding knife is slidably arranged in the guide groove of the knife rest and is in a retraction state in cooperation with the pressing spring, the grinding knife is pushed to extend out in the radial direction in cooperation with the jacking block below during working, the structure is stable, and assembling is easy.

Description

Technical Field

[0001] The utility model relates to a blunting device for the inner hole of tempered glass. Background Art

[0002] In glass processing equipment, after the glass is drilled, the hole wall will be relatively rough, and the edge of the glass needs to be passivated and polished. Some existing hole grinding devices use manual handheld portable grinders for grinding. The degree of grinding depends entirely on the operator's experience. The grinding depth is not controlled, which can easily cause the glass edge to crack and affect the quality of glass grinding. Some use mechanical equipment for automatic grinding, which requires the grinding wheel to work with the rotation center of the eccentric structure. The overall structure is complex, including multiple drive structures, and parameter adjustment is required. The operation is inconvenient and affects the processing efficiency. Utility Model Content

[0003] In view of the shortcomings existing in the above problems, the utility model provides a blunting device for the inner hole of tempered glass.

[0004] To achieve the above purpose, the utility model provides a device for blunting the inner hole of tempered glass, comprising a workbench, a vacuum suction cup is provided on the workbench for adsorbing the glass, and a positioning block is provided at the edge of the workbench for positioning the side edge of the glass;

[0005] A grinding mechanism, the grinding mechanism is arranged above the workbench, the grinding mechanism includes a tool holder, the upper part of the tool holder is connected to a driving motor, the tool holder is an inverted U-shaped structure, the lower part of the tool holder forms a guide groove, the grinding knife is symmetrically slidably arranged in the guide groove, the lower part of the facing end of the grinding knife is processed to form an inclined surface, and the opposite end of the grinding knife extends out of the guide groove to form a grinding surface;

[0006] A lifting mechanism is arranged below the workbench and corresponds to the grinding mechanism. The lifting mechanism includes a lifting block. An integrated rotating shaft is arranged at the lower part of the lifting block. The rotating shaft is rotatably arranged in a positioning sleeve through a bearing. The lower part of the positioning sleeve is connected to a lower lifting seat. The upper part of the lifting block is a conical structure and cooperates with the inclined surface.

[0007] As a further improvement of the utility model, the front and rear sides of the grinding knife are slidably connected to the inner wall surface of the guide groove through a dovetail structure.

[0008] As a further improvement of the utility model, the facing end of the grinding knife extends upward to form an inner spring mounting seat, and limiting end covers are provided at the left and right openings of the guide groove. An outer spring mounting seat is formed at the lower part of the limiting end cover corresponding to the inner spring mounting seat, and a compression spring is provided between the inner spring mounting seat and the outer spring mounting seat.

[0009] As a further improvement of the utility model, the driving motor is installed on the upper lifting seat.

[0010] As a further improvement of the utility model, a through hole is processed on the workbench at a position corresponding to the position of the lifting block.

[0011] The beneficial effects of the utility model are:

[0012] The grinding knife in the device is slidably arranged in the guide groove of the knife holder and is in a retracted state in cooperation with the compression spring. When working, the grinding knife is pushed radially out in cooperation with the lifting block below to grind the inner hole of the glass. The structure is stable and the assembly is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of a device for blunting the inner hole of tempered glass according to the utility model;

[0014] Figure 2 It is a structural schematic diagram of the lifting mechanism 2;

[0015] Figure 3 is a schematic structural diagram of a grinding mechanism 7;

[0016] Figure 4 for Figure 3 Bottom view of

[0017] Figure 5 for Figure 3 Side view of

[0018] Figure 6 is a top view of the workbench 3;

[0019] Figure 7 This is a working schematic diagram of a device for blunting the inner hole of tempered glass according to the utility model;

[0020] Figure 8 It is a schematic diagram of the structure of glass 6.

[0021] In the figure: 1. lower lifting seat; 2. lifting mechanism; 21. lifting block; 22. rotating shaft; 23. positioning sleeve; 24. bearing; 3. workbench; 31. through hole; 4. vacuum suction cup; 5. positioning block; 6. glass; 61. inner hole; 7. grinding mechanism; 71. tool holder; 711. guide groove; 72. limit end cover; 721. outer spring mounting seat; 73. compression spring; 74. grinding knife; 741. inner spring mounting seat; 742. inclined surface; 743. grinding surface; 8. upper lifting seat; 9. driving motor. DETAILED DESCRIPTION

[0022] like Figure 1As shown, the device for blunting the inner hole of tempered glass described in the utility model comprises a workbench 3, a vacuum suction cup 4 is provided on the workbench 3 for adsorbing glass 6, and a positioning block 5 is provided at the edge of the workbench 3 for positioning the side of the glass 6 (see Figure 6 );

[0023] The grinding mechanism 7 is arranged above the workbench 3. The grinding mechanism 7 includes a tool holder 71. The upper part of the tool holder 71 is connected to the drive motor 9. The drive motor 9 is installed on the upper lifting seat 8. The tool holder 71 is an inverted U-shaped structure. A guide groove 711 is formed at the lower part of the tool holder 71. The grinding knife 74 is symmetrically slidably arranged in the guide groove 711. The front and rear sides of the grinding knife 74 are slidably connected with the inner wall surface of the guide groove 711 through a dovetail structure. The lower part of the opposite end of the grinding knife 74 is processed to form an inclined surface 742. The opposite end of the grinding knife 74 extends out of the guide groove 711 and forms a grinding surface 743. The opposite end of the grinding knife 74 extends upward to form an inner spring mounting seat 741. Limiting end covers 72 are provided at the openings on the left and right sides of the guide groove 711. An outer spring mounting seat 721 is formed at the lower part of the limiting end cover 72 to correspond to the inner spring mounting seat 741. A compression spring 73 is provided between the inner spring mounting seat 741 and the outer spring mounting seat 721 (see Figure 3-5 );

[0024] Lifting mechanism 2, which is arranged below the workbench 3 and corresponds to the grinding mechanism 7, comprises a lifting block 21, and an integrated rotating shaft 22 is arranged at the lower part of the lifting block 21, and the rotating shaft 22 is arranged in a positioning sleeve 23 through a bearing 24, and the lower part of the positioning sleeve 23 is connected to the lower lifting seat 1 (see Figure 2 ), the upper portion of the lifting block 21 is in a conical structure and matches the inclined surface 742 , and a through hole 31 is processed on the workbench 3 at a position corresponding to the position of the lifting block 21 .

[0025] In the device, the grinding knife is slidably arranged in the guide groove of the knife holder and is in a retracted state in cooperation with the compression spring. When working, it cooperates with the lifting block below to push the grinding knife radially out to grind the inner hole of the glass. The structure is stable and the assembly is simple.

[0026] In order to facilitate the understanding of the present invention, the following description is given in conjunction with the accompanying drawings during specific use;

[0027] like Figure 8 As shown, two inner holes 61 are processed symmetrically on the glass 6, and the device in this embodiment is mainly used to grind the inner holes 61;

[0028] When working, the glass is placed on the top of the vacuum suction cup, and the adjacent two sides of the glass are against the positioning block. Then the vacuum suction cup works to generate suction on the glass to form a position; the tool holder is located just above the inner hole of the glass, and the upper lifting seat drives the drive motor and the tool holder to move downward as a whole. In the initial state, the grinding knife is in a retracted state using the elastic memory of the compression spring. The outer diameter formed by the two grinding knives is smaller than the inner diameter of the inner hole. The tool holder drives the grinding knife to extend into the inner hole of the glass, and then the lower lifting seat drives the lifting mechanism to move upward as a whole. The lifting block passes through the workbench and extends between the two grinding knives. The cone surface on the upper part of the lifting block forms a thrust perpendicular to the inclined surface of the grinding knife. The grinding knife is in a horizontal sliding structure in the guide groove. The grinding knife moves outward along the guide groove under the push of the lifting block until the inner spring mounting seat abuts against the outer spring mounting seat, that is, it moves into place. At this time, the grinding surface of the grinding knife just contacts the wall of the inner hole; then the driving motor works to drive the tool holder to rotate, and the grinding surface at the end of the grinding knife grinds the wall of the inner hole, and the pressing block and the rotating shaft are in a follow-up state with the grinding knife; after the grinding is completed, the driving motor stops, and the lower lifting seat drives the lifting mechanism to move down and reset as a whole, and the grinding knife is reset by using the elastic memory characteristics of the pressure spring, and then the upper lifting seat drives the grinding mechanism to move up and reset as a whole, close the vacuum suction cup, and remove the glass.

[0029] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for blunting the inner hole of tempered glass, characterized in that: include: A workbench (3), wherein a vacuum suction cup (4) is provided on the workbench (3) for adsorbing the glass (6), and a positioning block (5) is provided at the edge of the workbench (3) for positioning the side edge of the glass (6); A grinding mechanism (7), the grinding mechanism (7) being arranged above the workbench (3), the grinding mechanism (7) comprising a tool holder (71), the upper part of the tool holder (71) being connected to a driving motor (9), the tool holder (71) being an inverted U-shaped structure, the lower part of the tool holder (71) forming a guide groove (711), the grinding knife (74) being symmetrically slidably arranged in the guide groove (711), the lower part of the facing end of the grinding knife (74) being processed to form an inclined surface (742), and the opposite end of the grinding knife (74) extending out of the guide groove (711) to form a grinding surface (743); A lifting mechanism (2), the lifting mechanism (2) is arranged below the workbench (3) and corresponds to the grinding mechanism (7), the lifting mechanism (2) comprises a lifting block (21), the lower part of the lifting block (21) is provided with an integrated rotating shaft (22), the rotating shaft (22) is rotatably arranged in a positioning sleeve (23) through a bearing (24), the lower part of the positioning sleeve (23) is connected to the lower lifting seat (1), the upper part of the lifting block (21) is in a conical structure and cooperates with the inclined surface (742).

2. The device for blunting the inner hole of tempered glass according to claim 1, characterized in that: The front and rear sides of the grinding knife (74) are slidably connected to the inner wall surface of the guide groove (711) via a dovetail structure.

3. The device for blunting the inner hole of tempered glass according to claim 1, characterized in that: The facing end of the grinding knife (74) extends upward to form an inner spring mounting seat (741); the left and right openings of the guide groove (711) are provided with limit end covers (72); the lower part of the limit end cover (72) is formed with an outer spring mounting seat (721) corresponding to the inner spring mounting seat (741); and a compression spring (73) is provided between the inner spring mounting seat (741) and the outer spring mounting seat (721).

4. The device for blunting the inner hole of tempered glass according to claim 1, characterized in that: The driving motor (9) is mounted on the upper lifting seat (8).

5. The device for blunting the inner hole of tempered glass according to claim 1, characterized in that: A through hole (31) is processed on the workbench (3) at a position corresponding to the lifting block (21).

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