CN214560051U

CN214560051U - End face grinding wheel abrasive water jet online finishing device

Info

Publication number: CN214560051U
Application number: CN202120320907.1U
Authority: CN
Inventors: 王润宇; 张华�; 武秋宇; 张明恩
Original assignee: Nantong University
Current assignee: Nantong University
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-11-02
Anticipated expiration: 2031-02-04

Abstract

The utility model provides an end surface grinding wheel abrasive water jet online finishing device, which comprises a machine base, a grinding wheel grinding device and a spray head; the machine base further comprises an electromagnetic chuck, a workpiece, a water outlet pipe, a drainage chute and an upright post, wherein the water outlet pipe is fixedly connected to the bottom of the drainage chute of the machine base, and the upright post is fixedly installed on the right side wall of the machine base; the grinding wheel grinding device is fixedly arranged in the machine base; the abrasive water jet dressing device is fixedly arranged on the upright post, and the spray head is fixedly arranged on the abrasive water jet dressing device. The utility model is suitable for the online dressing of the grinding wheel on site when the end face grinding wheel grinds the small plane, which is favorable for improving the grinding precision and reducing the burning of the workpiece; meanwhile, the grinding wheels with different hardness, granularity, rotating speed and binding agent can be dressed by adjusting the jet flow parameters, so that the method has wide application prospect; and the abrasive jet flow has a cooling effect to a certain extent, so that the grinding temperature is further reduced.

Description

End face grinding wheel abrasive water jet online finishing device

Technical Field

The utility model relates to a grinding process technical field, concretely relates to online trimming device of terminal surface emery wheel abrasive water jet.

Background

Along with the development of the current manufacturing industry, the requirement on the grinding quality is higher and higher, and during grinding, if the tips of abrasive particles cannot fall off in time after being worn, the grinding capacity of the grinding wheel is reduced, meanwhile, chip grooves of the grinding wheel are more easily blocked, and further, the grinding temperature is increased, so that a workpiece is burnt or even damaged, and the waste of materials and resources is caused, so that the grinding wheel is very necessary to be timely and properly trimmed.

The dressing method of the grinding wheel mainly comprises diamond pen dressing, electrolytic dressing, laser dressing, electric spark dressing and the like at present, wherein the diamond pen dressing is most widely applied, but the dressing precision is difficult to guarantee; the electrolytic dressing is suitable for the iron-based binder grinding wheel, and has certain requirements on the type of the binder, particularly the conductivity; laser and electric spark finishing have wide application range, but burn abrasive particles and have higher cost.

Patent No. CN107756252A provides a method for dressing dull grinding wheel by mixing dressing abrasive into fluid based on hydrodynamic principle and by means of rotation of the grinding wheel. Although the dressing efficiency is high and the cost is low, the on-site online dressing cannot be realized, and errors are generated when judging whether the grinding wheel is dull or not and the grinding wheel is remounted, so that the processing precision is influenced. DE4334391 combines ultrasonic dressing with liquid jet dressing by delivering contact fluid at high speed to the grinding surface by ultrasonic oscillation, so that the grinding wheel shape and accuracy are maintained, although in-situ on-line dressing can be achieved, it is only for cylindrical grinding wheels and cannot be applied to end grinding wheels.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an online finishing device of terminal surface emery wheel abrasive water jet, the non-work area who exposes when it utilizes high-pressure abrasive water jet to erode terminal surface emery wheel grinding facet work piece, the horizontal motion of adjustment efflux parameter and cooperation shower nozzle, the realization is got rid of the even of the binder of different hardness emery wheels, make emery wheel surface abrasive particle keep good sword height and distribution state when the grinding, the abrasive dust can be clear away to the efflux simultaneously, prevent the emery wheel jam, and play the cooling action, the possibility of work piece burn has been reduced when obtaining lower grinding surface roughness.

In order to achieve the above purpose, the utility model discloses a technical scheme who takes is:

an online dressing device of an end face grinding wheel abrasive water jet online dressing method comprises a machine base, a grinding wheel grinding device and a spray head; the machine base further comprises an electromagnetic chuck, a workpiece, a water outlet pipe, a drainage chute and an upright post, wherein the electromagnetic chuck is fixedly connected in a groove in the top of the machine base; the grinding wheel grinding device is fixedly arranged in the machine base; the abrasive water jet dressing device is fixedly arranged on the upright post, and the spray head is fixedly arranged on the abrasive water jet dressing device.

Further, the grinding wheel grinding device comprises a first motor, a first driving wheel, a first driven wheel, a first lead screw, a pin, a first belt, a sleeve, a rolling bearing, a top cover, a cantilever, a second motor, a main shaft, a flange, an end face grinding wheel, a grinding wheel shield, a second driving wheel, a second driven wheel and a U-shaped chute, wherein the U-shaped chute is fixedly arranged at the rear top of the machine base, the bottom of the rear side wall of the U-shaped chute is fixedly connected with the first motor, the output end of the first motor is fixedly connected with the first driving wheel, the first driving wheel is movably connected with the first belt, the top of the U-shaped chute is fixedly connected with the top cover, the rolling bearing is fixedly connected with the inner top of the top cover, the bottom of the U-shaped chute and the outer end of the cantilever, the inner ring of the rolling bearing is fixedly connected with the first lead screw, and the sleeve is fixedly connected with the lower side of the first lead screw, the improved grinding wheel is characterized in that a first driven wheel is fixedly connected to the top of the sleeve, the first driven wheel is movably connected with a first belt, a cantilever is connected to a first lead screw in a threaded mode, a second motor is fixedly mounted in a straight hole formed in the inner end of the top of the cantilever, a second driving wheel is fixedly connected to the output end of the second motor, a second driven wheel is connected to the second driving wheel through the first belt in a movable mode, a main shaft is fixedly mounted in the straight hole of the second driven wheel, a flange is inserted into the bottom of the main shaft, a pin is inserted into the flange and the main shaft, the pin is in a locked state, an end face grinding wheel is fixedly connected to the bottom of the flange, a grinding wheel shield is fixedly connected to the bottom of the outer end of the cantilever, and the end face grinding wheel rotates in the grinding wheel shield.

Further, the lateral wall of cantilever and the inner wall laminating sliding connection of U-shaped spout, the main shaft passes through antifriction bearing and cantilever rotation connection.

Further, the abrasive water jet trimming device comprises a horizontal guide groove, a fourth driven wheel, a traction belt, a third motor, a third driving wheel, a third driven wheel, a nozzle seat, a nozzle support, a steering engine guard plate, a second lead screw, a guide polished rod, a fourth motor and a second belt, wherein the outer wall of the upright post is fixedly provided with the fourth motor, the output end of the fourth motor is fixedly connected with the fourth driving wheel, the fourth driving wheel is movably connected with the second belt, the second belt is movably connected with the fourth driven wheel, the fourth driven wheel is fixedly connected with the second lead screw, the second lead screw is in threaded connection with the horizontal guide groove, the horizontal guide groove is in sliding connection with the guide polished rod through a slide hole, the inner end of the horizontal guide groove is fixedly provided with the third motor, and the output end of the third motor is fixedly connected with the third driving wheel, the outer end of the horizontal guide groove is rotatably connected with a third driven wheel through a bearing fixedly connected with the third driven wheel, the third driven wheel and a third driving wheel are both movably connected with a traction belt, the inner end of the traction belt is fixedly installed on two sides of a nozzle seat, a steering engine and a steering engine protection plate are fixed on the rear side wall of the nozzle seat, the steering engine protection plate is arranged on the steering engine, a nozzle support is fixedly connected to the output end of the steering engine, and a rotating shaft of the steering engine rotates in a straight hole of the nozzle seat.

Furthermore, the upper end and the lower end of the guide polish rod are fixedly installed in a straight hole of the upright post, and the second lead screw is rotatably connected with the upright post through a bearing fixedly connected with the second lead screw.

Further, the shower nozzle includes that shower nozzle base member, precious stone nozzle, abrasive advance pipe, sand pipe, first sealing washer, second sealing washer, high pressure water advance pipe and hybrid chamber, the fixed mounting has the sand pipe in the top straight hole of shower nozzle base member, be connected with the second sealing washer between sand pipe and the shower nozzle base member, the hybrid chamber has been seted up to shower nozzle base member middle-end department, the shower nozzle base member advances the pipe at the lateral wall fixedly connected with abrasive of hybrid chamber, the abrasive advances to be connected with first sealing washer between pipe and the shower nozzle base member, the shower nozzle base member is at the bottom fixedly connected with precious stone nozzle of hybrid chamber department, the shower nozzle base member advances the pipe at the bottom fixedly connected with high pressure water of precious stone nozzle.

Further, the nozzle base body is fixedly arranged in the nozzle support.

Compared with the prior art, the technical scheme of the utility model have following advantage:

the utility model is suitable for the online dressing of the grinding wheel when the end face grinding wheel grinds the small plane, which is favorable for improving the grinding precision and reducing the burning of the workpiece; meanwhile, the grinding wheels with different hardness, granularity, rotating speed and binding agent can be dressed by adjusting the jet flow parameters, so that the method has wide application prospect; the abrasive jet flow has a cooling effect to a certain extent, so that the grinding temperature is further reduced; finally, the device is convenient for recovering the finishing waste liquid and is beneficial to environmental protection and resource saving.

Drawings

The technical solution and the advantages of the present invention will be made apparent from the following detailed description of the embodiments of the present invention with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of the end surface grinding wheel abrasive water jet online finishing device of the present invention.

Fig. 2 is a schematic structural diagram of the abrasive water jet dressing apparatus of the present invention.

Figure 3 is a cross-sectional view of the abrasive water jet conditioning apparatus of the present invention.

Fig. 4 is a sectional view of the nozzle structure of the present invention.

Fig. 5 is a sectional view of the grinding wheel grinding structure of the present invention.

Figure 6 is a flow chart for abrasive jet formation according to the present invention.

Reference numbers in the figures:

1. the grinding machine comprises a machine base 11, an electromagnetic suction cup 12, a workpiece 13, a water outlet pipe 14, a water discharge chute 15, an upright post 2, a grinding wheel grinding device 21, a first motor 22, a first driving wheel 23, a first driven wheel 24, a first lead screw 25, a pin 26, a first belt 27, a sleeve 28, a rolling bearing 29, a top cover 210, a cantilever 211, a second motor 212, a main shaft 213, a flange 214, an end face grinding wheel 215, a grinding wheel shield 216, a second driving wheel 217, a second driven wheel 218, a U-shaped chute 3, a spray head 31, a spray head base 32, a jewel nozzle 33, an abrasive feeding pipe 34, a sand pipe 35, a first sealing ring 36, a second sealing ring 37, a high-pressure water feeding pipe 38, a mixing cavity 4, a water jet abrasive finishing device 41, a horizontal guide groove 42, a fourth driven wheel 43, a traction belt 44, a third motor 45, a third driving wheel 46, a third driven wheel 47, a spray head seat 48, a spray head support 49, a 410, a guard plate 411, a second lead screw 412, a guide rod 413, a fourth motor 414, a fourth driving wheel 415, a driving wheel, a grinding A belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

As shown in fig. 1-5, the online dressing device of the end face grinding wheel abrasive water jet online dressing method comprises a machine base 1, a grinding wheel grinding device 2 and a spray head 3.

The machine base 1 further comprises an electromagnetic chuck 11, a workpiece 12, a water outlet pipe 13, a drainage chute 14 and an upright post 15, the electromagnetic chuck 11 is fixedly connected in a groove in the top of the machine base 1, the workpiece 12 is fixed on the top of the electromagnetic chuck 11 in a magnetic attraction manner, the drainage chute 14 is formed in the inner top of the machine base 1, the water outlet pipe 13 is fixedly connected to the bottom of the drainage chute 14 of the machine base 1, and the upright post 15 is fixedly mounted on the right side wall of the machine base 1, so that the recovery of waste liquid after finishing is facilitated, and the environmental protection and the resource saving are facilitated;

the grinding wheel grinding device 2 is fixedly arranged in the machine base 1, the grinding wheel grinding device 2 comprises a first motor 21, a first driving wheel 22, a first driven wheel 23, a first lead screw 24, a pin 25, a first belt 26, a sleeve 27, a rolling bearing 28, a top cover 29, a cantilever 210, a second motor 211, a spindle 212, a flange 213, an end face grinding wheel 214, a grinding wheel shield 215, a second driving wheel 216, a second driven wheel 217 and a U-shaped chute 218, the U-shaped chute 218 is fixedly arranged at the rear top of the machine base 1, the bottom of the rear side wall of the U-shaped chute 218 is fixedly connected with the first motor 21, the output end of the first motor 21 is fixedly connected with the first driving wheel 22, the first driving wheel 22 is movably connected with the first belt 26, the top of the U-shaped chute 218 is fixedly connected with the top cover 29, the inner top of the top cover 29, the bottom of the U-shaped chute 218 and the outer end of the cantilever 210 are fixedly connected with the rolling bearing 28, a first lead screw 24 is fixedly connected to an inner ring of the rolling bearing 28, a sleeve 27 is fixedly connected to the lower side of the first lead screw 24, a first driven wheel 23 is fixedly connected to the top of the sleeve 27, the first driven wheel 23 is movably connected with a first belt 26, a cantilever 210 is connected to the first lead screw 24 through a thread, a second motor 211 is fixedly installed in a straight hole formed in the inner end of the top of the cantilever 210, an output end of the second motor 211 is fixedly connected with a second driving wheel 216, the second driving wheel 216 is movably connected with a second driven wheel 217 through the first belt 26, a spindle 212 is fixedly installed in the straight hole of the second driven wheel 217, a flange 213 is inserted into the bottom of the spindle 212, the flange 213 and the spindle 212 are both inserted with a pin 25, the pin 25 is in a locked state, an end face grinding wheel 214 is fixedly connected to the bottom of the flange 213, a grinding wheel shield 215 is fixedly connected to the bottom of the outer end face of the cantilever 210, and the grinding wheel 214 rotates in the grinding wheel shield 215, the grinding wheel shield 215 can prevent the jet liquid from splashing, the side wall of the cantilever 210 is in fit sliding connection with the inner wall of the U-shaped chute 218, the main shaft 212 is in rotational connection with the cantilever 210 through the rolling bearing 28, the first motor 21 drives the first lead screw 24 to rotate, so that the cantilever 210 and the end face grinding wheel 214 move together in the vertical direction, and the bottom of the end face grinding wheel 214 is suitable for workpieces with different heights to be machined;

the abrasive water jet dressing device 4 is fixedly arranged on the upright post 15, the abrasive water jet dressing device 4 comprises a horizontal guide groove 41, a fourth driven wheel 42, a traction belt 43, a third motor 44, a third driving wheel 45, a third driven wheel 46, a nozzle seat 47, a nozzle support 48, a steering engine 49, a steering engine guard plate 410, a second lead screw 411, a guide polished rod 412, a fourth motor 413 and a second belt 415, the outer wall of the upright post 15 is fixedly provided with the fourth motor 413, the output end of the fourth motor 413 is fixedly connected with a fourth driving wheel 414, the fourth driving wheel 414 is movably connected with the second belt 415, the second belt 415 is movably connected with the fourth driven wheel 42, the fourth driven wheel 42 is fixedly connected with the second lead screw 411, the horizontal guide groove 41 is in threaded connection with the second lead screw 411, the horizontal guide groove 41 is in sliding connection with the guide polished rod 412 through a sliding hole, the fourth motor 413 drives the second lead screw 411 to rotate through the fourth driving wheel 414, the horizontal guide groove 41 moves in the vertical direction in the guide groove of the upright post 15 to adapt to the position change of the grinding wheel in the vertical direction; a third motor 44 is fixedly arranged at the inner end of the horizontal guide groove 41, a third driving wheel 45 is fixedly connected at the output end of the third motor 44, a third driven wheel 46 is rotatably connected at the outer end of the horizontal guide groove 41 through a fixedly connected bearing, the third driven wheel 46 and the third driving wheel 45 are both movably connected with a traction belt 43, the inner end of the traction belt 43 is fixedly arranged at two sides of the nozzle seat 47, the third motor 44 drives the traction belt 43 through the third driving wheel 45 to enable the nozzle seat 47 to reciprocate on the horizontal guide groove 41 along the horizontal direction to drive the nozzle 3 to move left and right, a steering engine 49 and a steering engine guard plate 410 are fixed on the rear side wall of the nozzle seat 47, the steering engine guard plate 410 is arranged on the steering engine 49, a nozzle support 48 is fixedly connected at the output end of the steering engine 49, a rotating shaft of the steering engine 49 rotates in a straight hole of the nozzle seat 47, the upper end and the lower end of the guide polished rod 412 are fixedly arranged in a straight hole of the upright post 15, the second screw 411 is rotationally connected with the upright post 15 through a bearing fixedly connected with the second screw, the steering engine 49 drives the spray head bracket 48 to rotate, the spray head bracket 48 drives the spray head 3 to rotate, the spraying angle of the spray head 3 is adjusted, and the spraying parameters of the spray head 3 are adjusted in multiple dimensions;

the spray head 3 is fixedly arranged on the abrasive water jet dressing device 4, the spray head 3 comprises a spray head base 31, a jewel nozzle 32, an abrasive inlet pipe 33, a sand pipe 34, a first sealing ring 35, a second sealing ring 36, a high-pressure water inlet pipe 37 and a mixing cavity 38, the sand pipe 34 is fixedly arranged in a straight hole at the top of the spray head base 31, the second sealing ring 36 is connected between the sand pipe 34 and the spray head base 31, the mixing cavity 38 is arranged at the middle end of the spray head base 31, the abrasive inlet pipe 33 is fixedly connected with the side wall of the mixing cavity 38 of the spray head base 31, the first sealing ring 35 is connected between the abrasive inlet pipe 33 and the spray head base 31, the jewel nozzle 32 is fixedly connected with the spray head base 31 at the bottom of the mixing cavity 38, the high-pressure water inlet pipe 37 is fixedly connected with the bottom of the jewel nozzle 32 of the spray head base 31, the spray head base 31 is fixedly arranged in a spray head bracket 48, the abrasive jet sprayed by the sand pipe 34 has a cooling function to a certain degree, further reducing the grinding temperature.

As shown in fig. 6, in order to achieve the above object, the present invention adopts a technical solution that:

a line dressing method of an end face grinding wheel abrasive water jet online dressing device comprises the following steps:

s10, setting a needed grinding wheel according to the workpiece processing requirement, and installing the grinding wheel;

s20, selecting corresponding jet abrasives according to an installed grinding wheel, and then adjusting the jet pressure, the jet target distance, the jet abrasive flow, the abrasive jet ejection inclination angle, the jet beam diameter and the horizontal translation speed of a nozzle for ejecting abrasive jet, wherein the abrasive jet parameters comprise the jet pressure of 30-50MPa, the jet target distance of 10-20cm, the abrasive flow of 10-20g/min, the nozzle inclination angle of 30-60 degrees, the jet beam diameter of 0.6-1.1mm and the horizontal translation speed of 1-20mm/S of the nozzle;

s30 the abrasive and water are mixed by a mixing agitator to form a jet abrasive, a gas-liquid booster pump and an accumulator are used to form high-pressure water, the two are mixed in a mixing cavity in the nozzle to form an abrasive water jet, and finally the abrasive water jet is ejected from an outlet at the end of a sand pipe in the nozzle, and the forming process of the abrasive water jet is as shown in fig. 6: the abrasive and water are mixed into slurry through a mixing stirrer, a gas-liquid booster pump and an energy accumulator are used for forming high-pressure water, the high-pressure water and the high-pressure water are mixed into an abrasive water jet in a mixing cavity in a nozzle, and finally the abrasive water jet is ejected through an outlet.

Detailed description of the preferred embodiment

The diamond grinding wheel with the granularity of 120# and the bronze binding agent hardness of T level is selected, the diameter of the end face of the diamond grinding wheel is 250mm, and the diameter of an inner hole is 70 mm. A316L stainless steel rectangular parallelepiped workpiece was ground to have dimensions of 60mm by 40mm by 50mm (length by width by height). The rotating speed of the grinding wheel is 1400r/min, and the grinding depth is 20 mu m.

Firstly, a grinding wheel is installed and a workpiece is clamped. The nozzle is adjusted to point to the grinding wheel and form an included angle of 45 degrees with the horizontal direction, meanwhile, the distance between the outlet end of the sand pipe and the end face of the grinding wheel is 10mm, the nozzle seat is arranged to reciprocate in an effective trimming range, the moving speed is 10mm/s, and jet flow can be expected to erode the end face of the grinding wheel uniformly.

Secondly, selecting the SiC abrasive with the granularity of 120# as jet abrasive according to the granularity of the grinding wheel, adding a proper amount of SiC abrasive and water into a stirrer to form abrasive slurry with certain fluidity, and conveying the abrasive slurry to a spray head through a hose. An air compressor and a water pump are started, high-pressure water is formed by a gas-liquid booster pump and an energy accumulator, the high-pressure water is conveyed to a spray head through a high-pressure hose, high-speed jet flow is formed by a sapphire nozzle with the diameter of 0.254mm, and the high-speed jet flow is mixed with abrasive materials in a mixing cavity of the spray head and then is sprayed out through a hard alloy sand pipe with the inner diameter of 0.76mm and the length of 76 mm. Adjusting the flow controller to enable the flow of the jet flow abrasive particles to be about 15 g/min; and adjusting the pressure regulating valve. The jet pressure is about 40 MPa.

And after the jet flow is stable, starting grinding, closing the machine after finishing removing the grinding allowance, stopping the jet flow, taking down the workpiece, and detecting.

The adjusting method is suitable for carrying out on-site online trimming on the grinding wheel when the end face grinding wheel grinds a small plane, is beneficial to improving the grinding precision and reducing the burn of a workpiece; meanwhile, the grinding wheels with different hardness, granularity, rotating speed and binding agent can be dressed by adjusting the jet flow parameters, so that the method has wide application prospect; and the abrasive jet flow has a cooling effect to a certain extent, so that the grinding temperature is further reduced.

The above is only the exemplary embodiment of the present invention, and not the limit of the patent protection scope of the present invention, all the equivalent structures or equivalent flow transformation made by the contents of the specification and the drawings, or the direct or indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An end face grinding wheel abrasive water jet online finishing device is characterized by comprising a machine base (1), a grinding wheel grinding device (2) and a spray head (3);

the machine base (1) further comprises an electromagnetic chuck (11), a workpiece (12), a water outlet pipe (13), a drainage chute (14) and a stand column (15), wherein the electromagnetic chuck (11) is fixedly connected in a groove in the top of the machine base (1), the workpiece (12) is fixed on the top of the electromagnetic chuck (11) in a magnetic attraction mode, the drainage chute (14) is formed in the inner top of the machine base (1), the water outlet pipe (13) is fixedly connected to the bottom of the drainage chute (14) of the machine base (1), and the stand column (15) is fixedly installed on the right side wall of the machine base (1);

the grinding wheel grinding device (2) is fixedly arranged in the machine base (1);

the abrasive water jet dressing device (4) is fixedly arranged on the upright post (15), and the spray head (3) is fixedly arranged on the abrasive water jet dressing device (4).

2. The on-line dressing device according to claim 1, wherein the grinding wheel grinding device (2) comprises a first motor (21), a first driving wheel (22), a first driven wheel (23), a first lead screw (24), a pin (25), a first belt (26), a sleeve (27), a rolling bearing (28), a top cover (29), a cantilever (210), a second motor (211), a main shaft (212), a flange (213), an end grinding wheel (214), a grinding wheel shield (215), a second driving wheel (216), a second driven wheel (217) and a U-shaped chute (218), the U-shaped chute (218) is fixedly installed at the rear top of the machine base (1), the first motor (21) is fixedly connected to the bottom of the rear side wall of the U-shaped chute (218), the first driving wheel (22) is fixedly connected to the output end of the first motor (21), and the first belt (26) is movably connected to the first driving wheel (22), the top of the U-shaped chute (218) is fixedly connected with a top cover (29), rolling bearings (28) are fixedly connected with the inner top of the top cover (29), the bottom of the U-shaped chute (218) and the outer end of the cantilever (210), a first lead screw (24) is fixedly connected with the inner ring of the rolling bearings (28), a sleeve (27) is fixedly connected with the lower side of the first lead screw (24), a first driven wheel (23) is fixedly connected with the top of the sleeve (27), the first driven wheel (23) is movably connected with a first belt (26), the cantilever (210) is in threaded connection with the first lead screw (24), a second motor (211) is fixedly installed in a straight hole formed in the inner end of the top of the cantilever (210), the output end of the second motor (211) is fixedly connected with a second driving wheel (216), and the second driving wheel (217) is movably connected with the second driven wheel (26) through the first belt (26), the second driven wheel (217) is fixedly provided with a main shaft (212) in a straight hole, the bottom of the main shaft (212) is connected with a flange (213) in an inserting mode, the flange (213) and the main shaft (212) are both provided with a pin (25) in an inserting mode, the pin (25) is in a locking state, the bottom of the flange (213) is fixedly connected with an end face grinding wheel (214), the bottom of the outer end of the cantilever (210) is fixedly connected with a grinding wheel shield (215), and the end face grinding wheel (214) rotates in the grinding wheel shield (215).

3. The on-line finishing device according to claim 2, wherein the side wall of the cantilever (210) is in close sliding connection with the inner wall of the U-shaped chute (218), and the main shaft (212) is in rotational connection with the cantilever (210) through a rolling bearing (28).

4. The on-line dressing device according to claim 1, wherein the abrasive water jet dressing device (4) comprises a horizontal guide groove (41), a fourth driven wheel (42), a traction belt (43), a third motor (44), a third driving wheel (45), a third driven wheel (46), a nozzle seat (47), a nozzle support (48), a steering engine (49), a steering engine guard plate (410), a second lead screw (411), a guide polished rod (412), a fourth motor (413) and a second belt (415), the outer wall of the upright post (15) is fixedly provided with the fourth motor (413), the output end of the fourth motor (413) is fixedly connected with the fourth driving wheel (414), the fourth driving wheel (414) is movably connected with the second belt (415), the second belt (415) is movably connected with the fourth driven wheel (42), and the fourth driven wheel (42) is fixedly connected with the second lead screw (411), the second lead screw (411) is in threaded connection with a horizontal guide groove (41), the horizontal guide groove (41) is in sliding connection with a guide polished rod (412) through a slide hole, a third motor (44) is fixedly installed at the inner end of the horizontal guide groove (41), the output end of the third motor (44) is fixedly connected with a third driving wheel (45), the outer end of the horizontal guide groove (41) is rotatably connected with a third driven wheel (46) through a fixedly connected bearing, the third driven wheel (46) and the third driving wheel (45) are both movably connected with a traction belt (43), the inner end of the traction belt (43) is fixedly installed on two sides of a nozzle seat (47), a steering engine (49) and a steering engine guard plate (410) are fixed on the rear side wall of the nozzle seat (47), the steering engine guard plate (410) is arranged on the steering engine (49), and a nozzle support (48) is fixedly connected with the output end of the steering engine (49), and the rotating shaft of the steering engine (49) rotates in the straight hole of the spray head seat (47).

5. The on-line dressing device according to claim 4, wherein the upper and lower ends of the guide polish rod (412) are fixedly installed in the straight hole of the upright (15), and the second lead screw (411) is rotatably connected with the upright (15) through a fixedly connected bearing.

6. The online trimming device according to claim 1, wherein the nozzle (3) comprises a nozzle base body (31), a jewel nozzle (32), an abrasive inlet pipe (33), a sand pipe (34), a first seal ring (35), a second seal ring (36), a high-pressure water inlet pipe (37) and a mixing cavity (38), the sand pipe (34) is fixedly installed in a straight hole at the top of the nozzle base body (31), the second seal ring (36) is connected between the sand pipe (34) and the nozzle base body (31), the mixing cavity (38) is formed at the middle end of the nozzle base body (31), the abrasive inlet pipe (33) is fixedly connected to the side wall of the mixing cavity (38) of the nozzle base body (31), the first seal ring (35) is connected between the abrasive inlet pipe (33) and the nozzle base body (31), the jewel nozzle (32) is fixedly connected to the bottom of the mixing cavity (38) of the nozzle base body (31), the spray head base body (31) is fixedly connected with a high-pressure water inlet pipe (37) at the bottom of the gem spray nozzle (32).

7. The in-line finishing device according to claim 6, wherein said nozzle base (31) is fixedly mounted in a nozzle holder (48).