CN211540825U - Automatic capstan grinding device of polisher - Google Patents

Abstract

The utility model discloses an automatic capstan grinding device of polisher, including metal casing, one side on metal casing top is provided with the water filling port, the below of water filling port is provided with the gas port, the medial extremity fixed mounting of water filling port has the water injection needle, metal casing's internally mounted has pneumatic motor actuating mechanism, pneumatic motor actuating mechanism's below fixed mounting has the solid fixed ring of motor, the eccentric shaft is installed to pneumatic motor actuating mechanism's axle center position, the axle center of eccentric shaft is provided with the main through-hole, the drainage needle is installed to the bottom of main through-hole, through-hole staff core is installed to the bottom of eccentric shaft, through-hole staff core passes through the third bearing with the inner wall of eccentric shaft bottom and is connected. The utility model discloses erode the powder that produces polishing simultaneously when polishing the surface, effectively improve the effect of polishing, and the inside leakproofness of grinding device is strengthened and can effectively ensure mechanical life.

Description

A rotary grinding device for an automatic grinding machine

technical field

The utility model relates to the technical field of a rotary disc grinding device of a grinding machine, in particular to a rotary disc grinding device of an automatic grinding machine.

Background technique

With the rapid development of society and economy, the use of grinding devices has become more and more extensive. Grinding is a kind of surface modification technology, which generally refers to the use of rough objects (sandpaper containing high hardness particles, etc.) to change the surface of materials through friction. A processing method of physical properties, the main purpose is to obtain a specific surface roughness, the application of pneumatic grinding devices has also become common.

However, the powder generated by the existing pneumatic grinding device needs to be removed in the subsequent steps, which is not convenient. Therefore, it does not meet the existing needs. For this, we propose a rotary disc grinding of an automatic grinding machine. device.

Utility model content

The purpose of this utility model is to provide a rotary disc grinding device of an automatic grinding machine, in order to solve the problem that the powder generated by the existing pneumatic grinding device proposed in the above-mentioned background technology needs to be removed by subsequent steps when grinding the surface of the workpiece, which is not convenient enough. And other issues.

In order to achieve the above purpose, the utility model provides the following technical solutions: a rotary disc grinding device of an automatic grinding machine, comprising a metal casing, a water injection port is provided on one side of the top of the metal casing, and an air port is provided below the water injection port , a water injection needle is fixedly installed at the inner end of the water injection port, a pneumatic motor drive mechanism is installed inside the metal casing, a motor fixing ring is fixedly installed under the pneumatic motor drive mechanism, and the shaft of the pneumatic motor drive mechanism is installed. An eccentric shaft is installed at the center position, and the shaft center of the eccentric shaft is provided with a main through hole;

The bottom end of the main through hole is installed with a drain needle, the bottom end of the eccentric shaft is installed with a small shaft core of the through hole, and the small shaft core of the through hole is connected with the inner wall of the bottom end of the eccentric shaft through a third bearing. A waterproof and dustproof cover is installed on the bottom surface of the three bearings, and a third waterproof framework oil seal is provided at the connection between the inner wall of the waterproof and dustproof cover and the outer surface of the through-hole small shaft core, and the bottom end of the through-hole small shaft core is fixedly installed There are sanding discs.

Preferably, the pneumatic motor driving mechanism includes an upper cover, a first bearing is installed on the top of the upper cover, a motor upper cover fixing nut is installed above the upper cover, and the inner wall of the motor upper cover fixing nut is connected to the water injection A first waterproof skeleton oil seal is arranged at the connection of the outer surface of the needle, a lower cover is installed under the upper cover, the airtight space formed between the upper cover and the lower cover is an air cavity, and the inside of the air cavity is installed with a lower cover. Pneumatic drive part, the inner wall of the pneumatic drive part is installed with a rotor, the rotor and the eccentric shaft are connected by an oval fixing pin, a second bearing is fixedly installed on the inner side of the bottom end of the lower cover, and the bottom surface of the second bearing is installed There is a waterproof gasket B, and a fourth waterproof skeleton oil seal is provided at the connection between the inner wall of the waterproof gasket B and the outer surface of the eccentric shaft.

Preferably, the bottom end of the water injection needle extends through the first waterproof framework oil seal and the motor upper cover fixing nut to the inner side of the top end of the main through hole.

Preferably, a waterproof gasket A is fixedly installed on the outside of the connection between the water injection needle and the water injection port, and the inner end of the air port is connected to the air cavity.

Preferably, the grinding disc is connected with the inner wall of the through-hole small shaft core through an externally threaded pipe, and the bottom end of the drain needle extends to the inner side of the externally threaded pipe.

Preferably, a second waterproof framework oil seal is provided at the connection between the inner wall of the top end of the small shaft core of the through hole and the outer surface of the drain needle.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The utility model injects water into the main through hole inside the eccentric shaft through the water injection port along the water injection needle, and then the water is brought out to the center hole of the grinding disc through the drain needle, so that the grinding disc is in contact with the surface of the workpiece while grinding on one side, At the same time, the axis of the grinding disc sprays out the rinsing liquid to remove the grinding powder, so that the surface of the grinding process is clean;

2. The utility model effectively improves the sealing performance inside the device through the waterproof gasket A, the second waterproof skeleton oil seal, the third waterproof skeleton oil seal and the fourth waterproof skeleton oil seal, so as to prevent water leakage from affecting the life of the device, and improve the polishing through the eccentric rotation of the eccentric shaft. Effect.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is the partial structure schematic diagram of the present utility model;

Figure 3 is a schematic diagram of the internal structure of the utility model.

In the picture: 1. Metal shell; 2. Water injection port; 3. Air port; 4. Grinding disc; 5. Water injection needle; 6. Waterproof gasket A; 7. First waterproof frame oil seal; 8. Motor upper cover fixing nut; 9. Pneumatic motor drive mechanism; 10. Motor fixing ring; 11. Drainage needle; 12. Second waterproof skeleton oil seal; 13. Third bearing; 14. Waterproof and dustproof cover; 15. Through-hole small shaft core; 16. Three waterproof skeleton oil seal; 17, upper cover; 18, rotor; 19, air cavity; 20, pneumatic drive part; 21, first bearing; 22, eccentric shaft; 23, main through hole; 24, oval fixing pin; 25 , The second bearing; 26, the waterproof gasket B; 27, the fourth waterproof skeleton oil seal; 28, the lower cover.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

Please refer to FIG. 1 to FIG. 3, an embodiment provided by the present invention: a rotary disc grinding device of an automatic grinding machine, comprising a metal casing 1, a water injection port 2 is provided on one side of the top of the metal casing 1, and the water injection port 2 The air port 3 is arranged below the water injection port 2, the water injection needle 5 is fixedly installed on the inner end of the water injection port 2, the air motor driving mechanism 9 is installed inside the metal casing 1, and the motor fixing ring 10 is fixedly installed under the air motor driving mechanism 9. The air motor An eccentric shaft 22 is installed at the axial center of the drive mechanism 9, and a main through hole 23 is disposed at the axial center of the eccentric shaft 22;

The drain needle 11 is installed at the bottom end of the main through hole 23, and the small shaft core 15 is installed at the bottom end of the eccentric shaft 22. A waterproof and dustproof cover 14 is installed on the bottom surface of the bearing 13 , a third waterproof skeleton oil seal 16 is provided at the connection between the inner wall of the waterproof and dustproof cover 14 and the outer surface of the through-hole small shaft core 15 , and the bottom end of the through-hole small shaft core 15 is fixed A sanding disc 4 is installed.

Further, the pneumatic motor drive mechanism 9 includes an upper cover 17 , the top of the upper cover 17 is mounted with a first bearing 21 , a motor upper cover fixing nut 8 is installed above the upper cover 17 , and the inner wall of the motor upper cover fixing nut 8 is connected to the water injection needle 5 . A first waterproof skeleton oil seal 7 is provided at the connection of the outer surface of the upper cover 17, a lower cover 28 is installed under the upper cover 17, the airtight space formed between the upper cover 17 and the lower cover 28 is an air cavity 19, and the interior of the air cavity 19 is installed with Pneumatic drive member 20, the inner wall of the pneumatic drive member 20 is mounted with a rotor 18, the rotor 18 is connected with the eccentric shaft 22 by an oval fixing pin 24, the inner side of the bottom end of the lower cover 28 is fixedly installed with a second bearing 25, the bottom surface of the second bearing 25 A waterproof gasket B26 is installed, and a fourth waterproof skeleton oil seal 27 is provided at the connection between the inner wall of the waterproof gasket B26 and the outer surface of the eccentric shaft 22 .

Further, the bottom end of the water injection needle 5 penetrates the first waterproof frame oil seal 7 and the motor upper cover fixing nut 8 and extends to the inner side of the top end of the main through hole 23. The first waterproof frame oil seal 7 effectively improves the sealing performance.

Further, a waterproof gasket A6 is fixedly installed on the outside of the connection between the water injection needle 5 and the water injection port 2, and the inner end of the air port 3 is connected to the air cavity 19. The waterproof gasket A6 improves the sealing performance and prevents water from entering the device.

Further, the grinding disc 4 is connected with the inner wall of the through-hole small shaft core 15 through an externally threaded pipe, and the bottom end of the drain needle 11 extends to the inner side of the externally threaded pipe, so that water can be sprayed along the axis of the grinding disc 4 .

Further, a second waterproof skeleton oil seal 12 is provided at the connection between the inner wall of the top end of the through-hole small shaft core 15 and the outer surface of the drain needle 11 , and the second waterproof skeleton oil seal 12 further strengthens the sealing performance inside the device.

Working principle: When in use, turn on the power supply, the water inlet pipe and the air pump, contact the bottom surface of the grinding disc 4 with the surface of the workpiece to be polished, open the water inlet pipe and the air pump, and the rotor 18 operates after the air is drawn inside the air motor drive mechanism 9. The rotation of the rotor 18 drives the eccentric shaft 22 to rotate, and through the water injection port 2 along the water injection needle 5, water is injected into the main through hole 23 inside the eccentric shaft 22, and then the water is brought out to the center hole of the grinding disc 4 through the drain needle 11, so that the grinding disc 4 While grinding while in contact with the surface of the workpiece, the axis of the grinding disc 4 sprays out flushing fluid to remove the ground powder, so that the surface of the grinding process is clean and tidy. The third waterproof skeleton oil seal 16 and the fourth waterproof skeleton oil seal 27 effectively improve the sealing performance inside the device, avoid water leakage affecting the life of the device, and improve the grinding effect through the eccentric rotation of the eccentric shaft 22, so that the surface of the polished workpiece is clean.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (6)

1. A rotary disc grinding device of an automatic grinding machine, comprising a metal casing (1), characterized in that: a water injection port (2) is provided on one side of the top of the metal casing (1), and the water injection port (2) An air port (3) is arranged below the water injection port (2), a water injection needle (5) is fixedly installed at the inner end of the water injection port (2), and a pneumatic motor drive mechanism (9) is installed inside the metal casing (1). A motor fixing ring (10) is fixedly installed below the motor drive mechanism (9), an eccentric shaft (22) is installed at the axial center of the air motor drive mechanism (9), and the axial center of the eccentric shaft (22) is arranged There is a main through hole (23); A drain needle (11) is installed at the bottom end of the main through hole (23), and a small through-hole shaft core (15) is installed at the bottom end of the eccentric shaft (22), and the through-hole small shaft core (15) The inner wall of the bottom end of the eccentric shaft (22) is connected through a third bearing (13), a waterproof and dustproof cover (14) is installed on the bottom surface of the third bearing (13), and the inner wall of the waterproof and dustproof cover (14) is A third waterproof skeleton oil seal (16) is provided at the connection between the outer surfaces of the through-hole small shaft core (15), and a grinding disc (4) is fixedly installed at the bottom end of the through-hole small shaft core (15). 2. The rotary disc grinding device of an automatic grinding machine according to claim 1, wherein the pneumatic motor drive mechanism (9) comprises an upper cover (17), and the top of the upper cover (17) is installed There is a first bearing (21), a motor upper cover fixing nut (8) is installed above the upper cover (17), and the inner wall of the motor upper cover fixing nut (8) is connected with the outer surface of the water injection needle (5) There is a first waterproof skeleton oil seal (7) at the place, a lower cover (28) is installed under the upper cover (17), and the airtight space formed between the upper cover (17) and the lower cover (28) is air A cavity (19), a pneumatic drive member (20) is installed inside the air cavity (19), a rotor (18) is installed on the inner wall of the pneumatic drive member (20), and the rotor (18) is connected to the eccentric shaft ( 22) Connected by an oval fixing pin (24), a second bearing (25) is fixedly installed on the inner side of the bottom end of the lower cover (28), and a waterproof gasket B (26) is installed on the bottom surface of the second bearing (25). ), a fourth waterproof skeleton oil seal (27) is provided at the connection between the inner wall of the waterproof gasket B (26) and the outer surface of the eccentric shaft (22). 3. The rotary disc grinding device of an automatic grinding machine according to claim 2, characterized in that: the bottom end of the water injection needle (5) penetrates the first waterproof skeleton oil seal (7) and the motor upper cover fixing nut ( 8) Extend to the inside of the top of the main through hole (23). 4. The rotary disc grinding device of an automatic grinding machine according to claim 2, characterized in that: a waterproof gasket A (6 ), the inner end of the air port (3) is connected to the air cavity (19). 5. The rotary disc grinding device of an automatic grinding machine according to claim 1, characterized in that: the grinding disc (4) is connected with the inner wall of the through-hole small shaft core (15) through an external threaded pipe, and the The bottom end of the drain needle (11) extends to the inner side of the externally threaded pipe. 6. The rotary disc grinding device of an automatic grinding machine according to claim 1, characterized in that: the connection between the inner wall of the top of the through-hole small shaft core (15) and the outer surface of the drain needle (11) is provided with The second waterproof skeleton oil seal (12).

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