Grinding wheel clamp

Abstract

The utility model relates to the technical field of grinding wheels, in particular to a grinding wheel clamp which comprises a hollow pipe and a grinding wheel. The grinding wheel dismounting and mounting mechanism comprises a tray fixedly mounted on the surface of the hollow pipe, a positioning pin fixedly mounted on the upper surface of the tray, a rectangular groove formed in the surface of the top of the hollow pipe, a sliding block movably mounted in the rectangular groove and an abutting block fixedly mounted on the surface of the sliding block. The electric push rod is fixedly mounted on the lower surface of the inner cavity of the hollow pipe. According to the grinding wheel clamp, the electric push rod and the sliding block are arranged in the hollow pipe, the abutting block is arranged on the sliding block, the tray is arranged outside the hollow pipe, the positioning pin is arranged on the tray, and the positioning groove is formed in the grinding wheel, so that when the grinding wheel clamp is used, the grinding wheel can be limited through cooperation of the positioning pin and the positioning groove; and the grinding wheel can be pressed and fixed to the tray through cooperation of an electric push rod and a sliding block, so that the grinding wheel is convenient to mount and dismount, and the grinding wheel is convenient to replace.

Description

Technical Field

[0001] The present application relates to the technical field of grinding wheels, and in particular to a grinding wheel fixture. Background Art

[0002] A grinding wheel is a tool used for grinding, polishing and finishing the surface of a workpiece. It is usually made of a mixture of sand and a binder. It is widely used in metal processing, woodworking, glass processing, ceramic processing and other industries. It is a common grinding tool. The main components of a grinding wheel include sand and a binder. The sand is the grinding part of the grinding wheel. Its hardness and particle size determine the grinding effect of the grinding wheel. The binder plays the role of fixing the sand so that it can be evenly distributed on the surface of the grinding wheel and contact with the workpiece. The choice of grinding wheel depends on the material, shape and required processing effect of the workpiece.

[0003] When using a grinding wheel to grind a drill bit, the grinding wheel will wear out. In order to ensure the processing effect, the grinding wheel needs to be replaced. However, the existing grinding wheels are fixed by bolts. When replacing the grinding wheel, professional tools need to be used to remove the bolts, resulting in low efficiency in replacing the grinding wheel. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present application provides a grinding wheel clamp, which has the advantage of being easy and quick to replace the grinding wheel. It solves the problem that the existing grinding wheels are fixed by bolts, and professional tools need to be used to remove the bolts when replacing the grinding wheel, resulting in low grinding wheel replacement efficiency.

[0005] In summary, the present application provides the following technical solutions: a grinding wheel fixture, comprising a hollow tube and a grinding wheel, wherein a grinding wheel disassembly and assembly mechanism is provided between the hollow tube and the grinding wheel;

[0006] The grinding wheel disassembly and assembly mechanism includes a tray fixedly mounted on the surface of the hollow tube, a positioning pin fixedly mounted on the upper surface of the tray, a rectangular groove opened on the top surface of the hollow tube, a slider movably mounted in the rectangular groove, a stopper fixedly mounted on the surface of the slider, an electric push rod fixedly mounted on the lower surface of the inner cavity of the hollow tube, a push plate fixedly mounted on the top of the electric push rod, a push rod fixedly mounted on the upper surface of the push plate, and a positioning groove opened on the surface of the grinding wheel.

[0007] Furthermore, the number of the positioning pins and the number of the positioning slots are both four, and the external shape and size of the positioning pins are matched with the internal shape and size of the positioning slots.

[0008] The beneficial effect of adopting the above further solution is that it is easy for the positioning pin to be inserted into the positioning groove.

[0009] Furthermore, slide posts are fixedly mounted on the inner surfaces of the rectangular groove on one side thereof, and slide grooves are formed on the opposite side surfaces of the sliding blocks, and the slide posts are inserted into the slide grooves.

[0010] The beneficial effect of adopting the above further solution is that it is easy for the slider to slide and rotate in the rectangular groove.

[0011] Furthermore, the diameter of the sliding column is the same as the width of the sliding groove, and the surface of the sliding column is in sliding contact with the inner surface of the sliding groove.

[0012] The beneficial effect of adopting the above further solution is that the sliding block is easy to move on the sliding column through the sliding groove.

[0013] Furthermore, a circular hole is opened on the surface of the grinding wheel, and the inner diameter of the circular hole is larger than the diameter of the hollow tube.

[0014] The beneficial effect of adopting the above further solution is that it is easy to put the grinding wheel on the hollow tube and contact the pallet.

[0015] Furthermore, the number of the sliders and the push rods are both three, and the push rods are rotatably connected between one end of the slider away from the push plate and one end of the slider located inside the hollow tube.

[0016] The beneficial effect of adopting the above further solution is that it is easy for the push rod to push the sliding block to move.

[0017] Furthermore, the cross-sectional shape and size of the push plate are the same as the cross-sectional shape and size of the interior of the hollow tube, and the side surface of the push plate is in sliding contact with the inner cavity surface of the hollow tube.

[0018] The beneficial effect of adopting the above further solution is that it is easy for the push plate to move in the hollow tube.

[0019] Furthermore, a gear is fixedly mounted on the bottom of the hollow tube, and a pulley located between the gear and the tray is fixedly mounted on the surface of the hollow tube.

[0020] The beneficial effect of adopting the above further solution is that it is easy to connect the hollow tube with the synchronous wheel, synchronous belt or motor for rotation.

[0021] Furthermore, a sleeve located between the pulley and the tray is sleeved on the surface of the hollow tube, and a bracket is fixedly installed on the surface of the sleeve.

[0022] The beneficial effect of adopting the above further solution is that it is easy to support the hollow tube.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] The grinding wheel clamp is provided with an electric push rod and a slider in a hollow tube, a stop block is provided on the slider, a tray is provided outside the hollow tube, a positioning pin is provided on the tray, and a positioning groove is provided on the grinding wheel. When in use, the grinding wheel can be limited by the cooperation of the positioning pin and the positioning groove, and the grinding wheel can be pressed and fixed on the tray by the cooperation of the electric push rod and the slider, so that the grinding wheel can be installed and disassembled and replaced easily, and the problem of low grinding wheel replacement efficiency caused by the need to use professional tools to remove the bolts in the existing grinding wheel is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the appearance of the hollow tube of the utility model;

[0026] Figure 2 It is a schematic diagram of the grinding wheel of the utility model;

[0027] Figure 3 It is a schematic diagram of the interior of the hollow tube of the utility model;

[0028] Figure 4 It is a schematic diagram of the slider of the utility model;

[0029] Figure 5 It is a schematic diagram of the sleeve of the utility model.

[0030] Description of reference numerals:

[0031] 1. Hollow tube; 2. Grinding wheel; 3. Pallet; 4. Locating pin; 5. Rectangular groove; 6. Sliding block; 7. Stop block; 8. Electric push rod; 9. Push plate; 10. Push rod; 11. Locating groove; 12. Sliding column; 13. Sliding groove; 14. Round hole; 15. Gear; 16. Pulley; 17. Sleeve; 18. Bracket. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] See also Figure 1-5A grinding wheel fixture in this embodiment includes a hollow tube 1 and a grinding wheel 2. A circular hole 14 is opened on the surface of the grinding wheel 2. The inner diameter of the circular hole 14 is larger than the diameter of the hollow tube 1, so that the grinding wheel 2 can be put on the hollow tube 1 and contact with the tray 3. A grinding wheel disassembly and assembly mechanism is provided between the hollow tube 1 and the grinding wheel 2. The grinding wheel disassembly and assembly mechanism includes a tray 3 fixedly installed on the surface of the hollow tube 1, a positioning pin 4 fixedly installed on the upper surface of the tray 3, a rectangular groove 5 opened on the top surface of the hollow tube 1, and a slider 6 movably installed in the rectangular groove 5. A sliding column 12 is fixedly installed on the opposite side surface of the rectangular groove 5, and a sliding groove 13 is opened on the opposite side surface of the slider 6. The sliding column 12 is stuck in the sliding groove 13, so that the slider 6 can slide and rotate in the rectangular groove 5. The diameter of the sliding column 12 is the same as the width of the sliding groove 13. The surface of the sliding column 12 is in sliding contact with the inner surface of the sliding groove 13, so that the slider 6 can slide and rotate in the rectangular groove 5. The push block 7 fixedly mounted on the surface of the slider 6, the electric push rod 8 fixedly mounted on the lower surface of the inner cavity of the hollow tube 1, and the push plate 9 fixedly mounted on the top of the electric push rod 8, the cross-sectional shape and size of the push plate 9 are the same as the cross-sectional shape and size inside the hollow tube 1, the side surface of the push plate 9 is in sliding contact with the inner cavity surface of the hollow tube 1, which is convenient for the push plate 9 to move in the hollow tube 1, the push rod 10 fixedly mounted on the upper surface of the push plate 9, the number of the slider 6 and the push rod 10 are both three, the push rod 10 is rotatably connected between the end away from the push plate 9 and the end of the slider 6 located on the inner side of the hollow tube 1, which is convenient for the push rod 10 to push the slider 6 to move, the positioning groove 11 opened on the surface of the grinding wheel 2, the number of the positioning pin 4 and the positioning groove 11 are both four, the external shape and size of the positioning pin 4 are adapted to the internal shape and size of the positioning groove 11, so that the positioning pin 4 is convenient for the positioning pin 4 to be inserted into the positioning groove 11.

[0034] A gear 15 is fixedly installed at the bottom of the hollow tube 1, and a pulley 16 located between the gear 15 and the tray 3 is fixedly installed on the surface of the hollow tube 1, which is convenient for connecting the hollow tube 1 with a synchronous wheel, a synchronous belt or a motor for rotation. A sleeve 17 located between the pulley 16 and the tray 3 is sleeved on the surface of the hollow tube 1, and a bracket 18 is fixedly installed on the surface of the sleeve 17, which is convenient for supporting the hollow tube 1.

[0035] It should be noted that the model of the electric push rod 8 in this embodiment is a TA16 series electric push rod, which can withstand a larger load, provide a larger pressure to the slider 6 and the stop block 7, and increase the clamping pressure on the grinding wheel 2.

[0036] The working principle of the above embodiment is:

[0037] When in use, the electric push rod 8 is started, and the push plate 9 is driven by the electric push rod 8 to move downward in the hollow tube 1, so that the push rod 10 follows the push plate 9 to move downward in the hollow tube 1 synchronously. When the push rod 10 moves downward, it will drive one end of the slider 6 to move downward. At this time, the slider 6 slides in the rectangular groove 5 and moves downward in the hollow tube 1 in an inclined state. Then the grinding wheel 2 is sleeved on the outside of the hollow tube 1 through the circular hole 14, so that the positioning pin 4 on the tray 3 is stuck in the positioning groove 11 on the surface of the grinding wheel 2. The electric push rod 8 is started again, and the push plate 9 is driven by the electric push rod 8 to move upward in the hollow tube 1, so that the push rod 10 follows the push plate 9 in the hollow tube. The hollow tube 1 moves upward synchronously. When the push rod 10 moves upward, it will drive one end of the slider 6 to move upward, so that the slider 6 slides in the rectangular groove 5 and gradually extends out of the hollow tube 1, so that the slider 6 gradually tilts downward away from the push rod 10, and the stop block 7 gradually tilts downward following the slider 6, so that the stop block 7 contacts the surface of the grinding wheel 2, and the grinding wheel 2 is pressed by the stop block 7. With the cooperation of the positioning pin 4, the grinding wheel 2 can be fixed on the pallet 3, and then the synchronous belt is connected with the pulley 16, and the hollow tube 1 is supported by the bracket 18, so that the hollow tube 1 can be rotated, or the gear 15 is meshed with the transmission gear on the motor to drive the hollow tube 1 with the motor.

Claims

1. A grinding wheel fixture, comprising a hollow tube (1) and a grinding wheel (2), characterized in that: A grinding wheel disassembly and assembly mechanism is provided between the hollow tube (1) and the grinding wheel (2); The grinding wheel disassembly and assembly mechanism comprises a tray (3) fixedly mounted on the surface of the hollow tube (1), a positioning pin (4) fixedly mounted on the upper surface of the tray (3), a rectangular groove (5) opened on the top surface of the hollow tube (1), a slider (6) movably mounted in the rectangular groove (5), a stopper (7) fixedly mounted on the surface of the slider (6), an electric push rod (8) fixedly mounted on the lower surface of the inner cavity of the hollow tube (1), a push plate (9) fixedly mounted on the top of the electric push rod (8), a push rod (10) fixedly mounted on the upper surface of the push plate (9), and a positioning groove (11) opened on the surface of the grinding wheel (2).

2. A grinding wheel fixture according to claim 1, characterized in that: The number of the positioning pins (4) and the number of the positioning slots (11) are both four, and the external shape and size of the positioning pins (4) are matched to the internal shape and size of the positioning slots (11).

3. A grinding wheel fixture according to claim 1, characterized in that: A sliding column (12) is fixedly mounted on the opposite side surface of the rectangular groove (5), and a sliding groove (13) is provided on the opposite side surface of the sliding block (6), and the sliding column (12) is inserted into the sliding groove (13).

4. A grinding wheel fixture according to claim 3, characterized in that: The diameter of the sliding column (12) is the same as the width of the sliding groove (13), and the surface of the sliding column (12) is in sliding contact with the inner surface of the sliding groove (13).

5. The grinding wheel fixture according to claim 1, characterized in that: A circular hole (14) is provided on the surface of the grinding wheel (2), and the inner diameter of the circular hole (14) is larger than the diameter of the hollow tube (1).

6. A grinding wheel fixture according to claim 1, characterized in that: The number of the sliders (6) and the push rods (10) are both three, and the push rods (10) are rotatably connected between an end of the slider (6) away from the push plate (9) and an end of the slider (6) located inside the hollow tube (1).

7. A grinding wheel fixture according to claim 1, characterized in that: The cross-sectional shape and size of the push plate (9) are the same as the cross-sectional shape and size of the interior of the hollow tube (1), and the side surface of the push plate (9) is in sliding contact with the inner cavity surface of the hollow tube (1).

8. The grinding wheel fixture according to claim 1, characterized in that: A gear (15) is fixedly mounted on the bottom of the hollow tube (1), and a pulley (16) located between the gear (15) and the tray (3) is fixedly mounted on the surface of the hollow tube (1).

9. A grinding wheel fixture according to claim 8, characterized in that: The surface of the hollow tube (1) is sleeved with a sleeve (17) located between the pulley (16) and the tray (3), and the surface of the sleeve (17) is fixedly mounted with a bracket (18).

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