Grinding disc braking device of grinding machine

Abstract

A grinding disc brake device of a grinding machine comprises an air cylinder, a locking connector, a brake block and a locking seat, a piston rod is arranged in the air cylinder, one end of the locking connector is connected with the piston rod, and the other end of the locking connector is connected with the brake block. A guide groove penetrating through the locking seat in the length direction is formed in the locking seat, and the brake block is embedded in the guide groove of the locking seat. The braking devices are arranged on the two sides of the main shaft of the grinding millstone of the grinding machine, the air cylinders on the two sides act at the same time, the main shaft is pressed by the braking blocks on the two sides at the same time, and rapid braking is conducted. Due to the fact that the main shaft is subjected to the same-size and opposite-direction effects at the same time, the main shaft cannot deflect in the braking process. And the front end of the brake block is arranged to be an arc brake surface attached to the outer surface of the main shaft, so that the contact surface of the brake block and the main shaft can be increased during braking, and the braking effect is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a brake device, concretely relates to a grinding disc brake device of a grinding machine. BACKGROUND

[0002] The grinding and polishing machine is a commonly used grinding and polishing mechanical equipment, and is widely applied to the surface treatment process of metal, glass, ceramic and other materials. The polishing disc or polishing cloth for grinding and polishing is arranged on the workbench of the grinding and polishing machine, so that the polishing disc or polishing cloth rubs back and forth on the surface of products, thereby removing scratches and defects on the surface of products, and meanwhile, the smoothness and flatness of the surface of products are improved.

[0003] The grinding disc of the grinding machine is rotated by the motor-driven main shaft, and the surface of metal, ceramic, glass and other products is ground and polished. However, in some special cases, the grinding disc of the grinding machine needs to be braked urgently, for example, when foreign matters splash onto the surface of the product being ground, the grinding disc needs to be braked urgently to prevent the foreign matters from scratching the surface of the product. The driving structure of the grinding disc of the grinding machine can brake the grinding disc by braking the main shaft after stopping the operation of the motor. SUMMARY

[0004] The technical problem to be solved by the utility model is how to brake the grinding disc of the grinding machine urgently to cope with some unexpected situations and ensure the safe grinding.

[0005] In view of the above problems, the technical scheme provided by the utility model is a grinding disc brake device of a grinding machine, which comprises a cylinder, a locking connector, a brake block and a locking seat. A piston rod is arranged in the cylinder. One end of the locking connector is connected with the piston rod, and the other end of the locking connector is connected with the brake block. A guide groove penetrating through the length direction of the locking seat is formed in the locking seat, and the brake block is embedded in the guide groove of the locking seat.

[0006] Preferably, the front end and the rear end of the locking connector are in the shape of a cuboid, and the cuboids of the front end and the rear end are integrally formed in the shape of a T.

[0007] Preferably, a locking hole penetrating in the vertical direction is formed in the rear end of the brake block, and the locking hole is a T-shaped through hole matched with the shape and size of the locking connector.

[0008] Preferably, a threaded hole is formed in the rear end of the locking connector, an external thread is arranged at the front end of the piston rod, the piston rod is connected with the locking connector in a threaded manner, and the locking connector is embedded in the T-shaped locking hole in the rear end of the brake block.

[0009] Preferably, a cuboid-shaped end cover is fixedly connected to the front end of the cylinder, through holes penetrating through the two sides of the end cover are formed, a threaded hole corresponding to the through hole on the end cover is formed in the rear end of the locking seat, and a bolt is screwed in the threaded hole of the locking seat through the through hole of the end cover.

[0010] Preferably, a nut is also mounted on the piston rod, and the front end of the nut abuts against the rear end of the locking joint.

[0011] Preferably, a circular arc braking surface is arranged at the front end of the braking block, and a circular arc seat surface is arranged at the front end of the locking seat.

[0012] The beneficial technical effects of the utility model are as follows: the braking device is arranged on both sides of the spindle of the grinding machine grinding disc, the cylinders on both sides are simultaneously actuated, the braking blocks on both sides are simultaneously pressed against the spindle, and rapid braking is performed. Since the spindle simultaneously receives the same size and opposite direction forces, the spindle will not deflect during braking. The front end of the braking block is arranged as a circular arc braking surface that abuts against the outer surface of the spindle, the contact surface of the braking block and the spindle is increased during braking, and the braking effect is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of Example 1.

[0014] Figure 2 It is an exploded view of Figure 1

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the braking block.

[0016] In the drawings: cylinder 1, end cover 2, piston rod 3, fastening nut 4, locking joint 5, braking block 6, circular arc braking surface 61, locking hole 62, locking seat 7, circular arc seat surface 71. DETAILED DESCRIPTION

[0017] The utility model will be further described below in combination with examples and drawings: Example 1

[0018] As shown in Figure 1 and Figure 2 , the braking device of the grinding disc includes a cylinder 1, a locking joint 5, a braking block 6, and a locking seat 7. The cylinder 1 is provided with a piston rod 3, the front end of the piston rod 3 is provided with external threads, the rear end of the locking joint 5 is provided with a threaded hole, and the piston rod 3 is threadedly connected with the locking joint 5. A nut is also mounted on the piston rod 3, and the front end of the nut abuts against the rear end of the locking joint 5, so that the nut rotationally limits the locking joint 5.

[0019] The front end of the cylinder 1 is fixedly connected with a cuboid-shaped end cover 2, through holes are formed in both sides of the end cover 2, the rear end of the locking seat 7 is provided with a threaded hole corresponding to the through holes in the end cover 2, a bolt passes through the through holes in the end cover 2 and is tightly screwed in the threaded hole in the locking seat 7, so that the locking seat 7 is fixedly connected to the end cover 2 of the cylinder 1. ​

[0020] As Figures 1 to 3 shown, the front end and the rear end of the locking joint 5 are cuboid, and the cuboids of the front end and the rear end are integrally formed as T-shaped. The rear end of the brake block 6 is provided with a locking hole 62 vertically penetrating through the rear end, and the locking hole 62 is a T-shaped through hole matching the shape and size of the locking joint 5. The T-shaped locking joint 5 is installed in the locking hole 62 of the rear end of the brake block 6 in a clearance fit. One end of the locking joint 5 is connected with the piston rod 3, and the other end of the locking joint 5 is connected with the brake block 6.

[0021] The locking seat 7 is provided with a guide groove penetrating through the length direction of the locking seat 7, and the upper end of the guide groove is provided with an opening. The cross section of the locking seat 7 is C-shaped. The brake block 6 is embedded in the guide groove of the locking seat 7. The width and height of the brake block 6 match the width and height of the guide groove respectively, so that the guide groove can guide the moving direction of the brake block 6. The size and shape of the guide groove match the brake block 6, and the guide groove can also limit the brake block 6, which can prevent the brake block 6 from deviating when the brake block 6 brakes the main shaft of the grinding disc.

[0022] In order to increase the contact surface of the brake block 6 and the main shaft during braking and enhance the braking effect, the front end of the brake block 6 of the embodiment is provided as a circular arc braking surface 61 abutting the outer surface of the main shaft of the grinding disc. In order to prevent the front end of the locking seat 7 from interfering with the main shaft of the grinding disc, the front end of the locking seat 7 is also provided with an inwardly recessed circular arc seat surface 71.

[0023] Obviously, a number of improvements or modifications made without departing from the principles of the present application should be considered as falling within the scope of the present application.

Claims

1. A mill disc braking device of a grinding machine, characterized in that, The cylinder, the locking joint, the brake block and the locking seat are included, the piston rod is arranged in the cylinder, one end of the locking joint is connected with the piston rod, the other end of the locking joint is connected with the brake block, a guide groove is opened in the locking seat and extends through the length direction of the locking seat, and the brake block is embedded in the guide groove of the locking seat.

2. A millstone braking device according to claim 1, characterized in that The front end and the rear end of the locking joint are cuboid, and the cuboids of the front end and the rear end are integrally formed as T-shaped.

3. A millstone braking device according to claim 2, characterized in that A locking hole extending through the vertical direction is opened in the rear end of the brake block, and the locking hole is a T-shaped through hole matched with the shape and size of the locking joint.

4. A millstone braking device according to claim 3, characterized in that A threaded hole is opened in the rear end of the locking joint, the front end of the piston rod is provided with an external thread, the piston rod is connected with the locking joint in a threaded mode, and the locking joint is embedded in the T-shaped locking hole in the rear end of the brake block.

5. A millstone braking device according to claim 4, characterised in that, The front end of the cylinder is fixedly connected with a cuboid-shaped end cover, through holes are opened in the two sides of the end cover, a threaded hole corresponding to the through hole on the end cover is opened in the rear end of the locking seat, and a bolt is passed through the through hole of the end cover and is screwed in the threaded hole of the locking seat.

6. A millstone braking device according to claim 5, wherein A nut is further arranged on the piston rod, and the front end of the nut abuts against the rear end of the locking joint.

7. A millstone braking device according to claim 6, characterised in that, A circular arc brake surface is arranged in the front end of the brake block, and a circular arc seat surface is arranged in the front end of the locking seat.

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