CN110744148B

CN110744148B - Gear polishing equipment that polishing precision is high

Info

Publication number: CN110744148B
Application number: CN201911126665.6A
Authority: CN
Inventors: 洪新阳; 黄刚敏; 郑敏敏; 周学平; 张信伟; 彭翔
Original assignee: Zhejiang Feng'an Gear Co ltd
Current assignee: ZHEJIANG FENG'AN GEAR Co.,Ltd.
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2021-01-19
Anticipated expiration: 2039-11-18
Also published as: CN110744148A; WO2021097779A1

Abstract

The invention discloses gear polishing equipment with high polishing precision, which comprises a rack, wherein a fixed base is arranged on the rack; an adjusting groove is arranged on the fixed base, and a hydraulic cylinder, a fixed plate, a fixed rod and two automatic stabilizing devices are arranged in the adjusting groove; a plurality of measuring rods with height detection devices are arranged on the fixing plate; one side of the fixed base is provided with a lifting seat, the lifting seat is provided with two electric slide rails and a lifting plate, and the lifting plate is provided with a fixed top seat; the fixed top seat is internally provided with an annular main pipe, an air inlet pipe, a supercritical carbon dioxide air supply bottle, a plurality of air outlet pipes, a plasma pipe and an annular feed pipe, and the top surface of the annular feed pipe is connected with the plasma gas bottle; the fixed top seat is provided with a plurality of piezoelectric sensors. The invention can improve the processing precision, and has the advantages of low labor intensity, high working efficiency, wide application range, good processing stability, high safety, convenient use, convenient maintenance, convenient cleaning and long service life.

Description

Gear polishing equipment that polishing precision is high

Technical Field

The invention relates to grinding and polishing equipment for gear machining, in particular to gear polishing equipment with high polishing precision.

Background

The gear is a mechanical element for transmitting motion and power by continuous meshing of gear teeth, and is widely applied to mechanical transmission and the whole mechanical field due to smooth gear transmission. The tooth space is required to be ground and polished in the gear reprocessing process, the existing gear grinding and polishing process is that the gear is intermittently driven to rotate by a motor, then the cutting knife is controlled by a mechanical arm to periodically move to the same position, and the tooth space is ground and polished, but the grinding and polishing process of the cutting knife is utilized to not only greatly wear the surface of the tooth space of the gear, but also well grind and polish some inner corners, and the processing precision is low; meanwhile, the machining mode can only polish one tooth socket at a time, manual real-time detection is needed, and the gear needs to be manually taken down after polishing is completed, so that the labor intensity is high; in the process of grinding and polishing, the generated high-temperature waste chips and waste liquid are scattered around the grinding and polishing area, and the safety is low. Therefore, the problems of lower processing precision, higher labor intensity and poorer safety exist in the process of reusing the prior grinding and polishing equipment for gear processing.

Disclosure of Invention

The invention aims to provide gear polishing equipment with high polishing precision. The invention not only can improve the processing precision, but also has the advantages of low labor intensity and high safety.

The technical scheme of the invention is as follows: a gear polishing device with high polishing precision comprises a rack, wherein a fixed base is arranged on the surface of the rack; an adjusting groove is arranged on the fixed base, and a hydraulic cylinder is arranged in the adjusting groove; the hydraulic cylinder is connected with a fixed plate, the middle part of the top surface of the fixed plate is provided with a fixed rod, and the fixed rod is provided with two symmetrically distributed automatic stabilizing devices; a plurality of L-shaped measuring rods are arranged on the bottom surface of the fixed plate, and each measuring rod is connected with a height detection device; a lifting seat is arranged on one side of the fixed base, and two electric sliding rails which are symmetrically distributed are arranged on the lifting seat; a lifting plate is arranged between the two electric sliding rails, and a fixed top seat positioned above the fixed base is arranged on the lifting plate; an annular main pipe is arranged in the fixed top seat, the top surface of the annular main pipe is connected with an air inlet pipe, and the air inlet pipe is connected with a supercritical carbon dioxide air supply bottle; a plurality of uniformly distributed air outlet pipes are arranged on the bottom surface of the annular main pipe, and one side wall of each air outlet pipe is connected with a plasma pipe; the top surface of the annular feeding pipe is connected with a plasma gas bottle; a plurality of annular piezoelectric sensors which are uniformly distributed are arranged on the edge of the bottom surface of the fixed top seat, and each piezoelectric sensor is electrically connected with the electric sliding rail; the height detection device is electrically connected with the hydraulic cylinder.

In the gear polishing device with high polishing precision, the height detection device comprises a bracket, and a porcelain cylinder is arranged on the bracket; a coil is spirally wound on the porcelain cylinder, and one end of the coil is connected with a connector lug; one end of the measuring rod is in contact with the surface of the coil.

In the gear polishing device with high polishing precision, a mounting groove is formed in the side wall of the adjusting groove at a position corresponding to the support, and a plurality of fixing blocks are arranged on the bottom surface of the mounting groove; each fixing block is provided with a fixing tenon groove; the position department that corresponds every fixed block on the lateral wall of support towards the adjustment tank all is provided with fixed tenon piece, and the support passes through fixed tenon piece and fixed mortise and mounting groove fixed connection.

In the gear polishing device with high polishing precision, the middle part of the bottom surface of the lifting plate is provided with the first buffer magnet; an electromagnet strip is arranged between the two electric slide rails, and the length of the electromagnet strip is the same as that of the electric slide rails.

In the foregoing gear polishing apparatus with high polishing precision, the automatic stabilizing device includes a stabilizing groove on the fixing rod; each stabilizing groove is internally provided with a stabilizing rod; one end part of each stabilizer bar is provided with a magnet piece, and the other end part of each stabilizer bar is provided with a plurality of uniformly distributed stabilizing springs; one end of each stabilizing spring is fixedly connected with the inner bottom surface of the stabilizing groove.

In the gear polishing device with high polishing precision, the fixed top seat is sleeved with the adjusting frame, and a plurality of clamping grooves which are uniformly distributed are formed in the inner side wall of the adjusting frame; a plurality of uniformly distributed air outlet holes are formed in the bottom surface of the adjusting frame, mounting holes are formed in the bottom surface of the adjusting frame at positions corresponding to the piezoelectric sensors, and a sealing ring is arranged on the inner wall of each mounting hole; and the side wall of the fixed top seat is provided with a clamping block at the position corresponding to each clamping groove, and the clamping block is clamped with the clamping groove.

In the gear polishing device with high polishing precision, the bottom surface of the fixed plate is sleeved with the collecting frame, and one side wall of the collecting frame is provided with the balance pipe; the fixing plate is provided with a plurality of through holes which are uniformly distributed.

Compared with the prior art, the gear polishing device improves the prior gear processing polishing device, and by arranging the supercritical carbon dioxide gas supply bottle and the plasma gas bottle, and utilizing the characteristic of high solubility of supercritical carbon dioxide gas, certain oxide layers on the tooth socket surface of the gear can be dissolved when supercritical carbon dioxide gas flow passes through the surface of the gear at a high speed, so that the working efficiency is improved; plasma gas emitted by the plasma gas bottle is matched, the plasma gas flow can be driven by the supercritical carbon dioxide gas flow to pass through the surface of the gear tooth groove, and then plasma polishing on the surface of the gear tooth groove is realized, so that higher polishing precision is obtained; the supercritical carbon dioxide airflow can also cool the surface of the gear tooth socket when passing through the surface of the gear tooth socket, so that an automatic cold machining and polishing process combining airflow polishing and plasma polishing is realized, the labor intensity can be reduced, the working efficiency is improved, and the machining precision is also improved; by arranging the plurality of air outlet pipes, each air outlet pipe is connected with the plasma pipe, so that a plurality of tooth groove surfaces of the gear can be polished at one time, and the working efficiency is further improved; by arranging the fixing rod, the plurality of automatic stabilizing devices are arranged on the fixing rod, so that the positioning device can adapt to the positioning of gears with different inner hole diameters and inner hole shapes, not only is the processing stability improved, but also the application range can be enlarged; the hydraulic cylinder, the fixed plate, the measuring rod and the automatic stabilizing device are arranged on the fixed upper base, the fixed plate drives the measuring rod to move towards the hydraulic cylinder by using the weight of the gear, so that the automatic measuring device can detect the width of the gear by using the measuring rod, and the top surface of the gear is always parallel to the top surface of the fixed base in the grinding and polishing process; simultaneously, through setting up electronic slide rail, piezoelectric sensor and fixed footstock, utilize fixed footstock and unable adjustment base coincidence of judgement that piezoelectric sensor can be accurate to realize the leakproofness burnishing and polishing, reduce splashing of sweeps and waste liquid, improved the security. In addition, the ceramic cylinder, the coil and the connector lug are arranged and matched with the measuring rod to form a structure similar to a sliding rheostat, so that the starting speed of the hydraulic cylinder is controlled by current passing through the coil, automatic adjustment is realized, and the use is facilitated; by arranging the mounting groove, a plurality of fixing blocks are arranged on the inner wall of the mounting groove, a fixing tenon groove is formed in each fixing block, a plurality of fixing tenon blocks are arranged on the support, and the support is convenient to maintain, disassemble and assemble while the stability of the support is ensured by utilizing the joggles between the fixing tenon grooves and the fixing tenon blocks; by arranging the electromagnet strips and the first buffer magnets, the moving speed of the lifting plate can be reduced as much as possible by utilizing the principles that magnets attract each other in opposite polarities and repel each other in the same polarity, so that the buffer effect is achieved, severe impact between the fixed top seat and the fixed base is avoided, and the service life is prolonged; by arranging the adjusting frames and changing the adjusting frames of different types, the gear polishing machine can adapt to the gear polishing work of different tooth shapes, thereby further expanding the application range; by arranging the sealing ring, the sealing performance can be improved; through set up collection frame and a plurality of thru hole on the fixed plate, make impurity and dust that polishing came down can collect in collecting the frame automatically through the thru hole, made things convenient for the clearance. Therefore, the automatic cold machining polishing process combining air flow polishing and plasma polishing can improve the machining precision, and has the advantages of low labor intensity, high working efficiency, wide application range, good machining stability, high safety, convenience in use and maintenance, convenience in cleaning and long service life.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a bottom view of the ring main;

FIG. 3 is a rear view of the lifter plate;

FIG. 4 is an enlarged view of a portion of FIG. 1 at A;

FIG. 5 is an enlarged view of a portion of FIG. 1 at C;

fig. 6 is a partially enlarged view at B in fig. 1.

The labels in the figures are: 1-frame, 2-stationary base, 3-adjustment groove, 4-hydraulic cylinder, 5-stationary plate, 6-stationary bar, 7-automatic stabilizer, 8-measuring bar, 9-height detector, 10-lifter, 11-electric slide, 12-lifter, 13-stationary top, 14-ring main, 15-inlet, 16-supercritical carbon dioxide supply bottle, 17-outlet, 18-plasma tube, 19-ring feed, 20-plasma gas bottle, 21-sensor, 22-bracket, 23-ceramic cylinder, 24-coil, 25-connector, 26-mounting groove, 27-stationary block, 28-stationary tongue, 29-stationary tongue, 30-first buffer magnet, 31-electromagnet strips, 33-stabilizing grooves, 34-stabilizing rods, 35-magnet sheets, 36-stabilizing springs, 37-adjusting frames, 38-clamping grooves, 40-mounting holes, 41-sealing rings, 43-clamping blocks, 44-collecting frames, 45-through holes and 46-balancing pipes.

Detailed Description

The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.

Examples are given. A gear polishing device with high polishing precision is shown in figures 1 to 6 and comprises a frame 1, wherein a fixed base 2 is arranged on the surface of the frame 1; an adjusting groove 3 is arranged on the fixed base 2, and a hydraulic cylinder 4 is arranged in the adjusting groove 3; the hydraulic cylinder 4 is connected with a fixed plate 5, the middle part of the top surface of the fixed plate 5 is provided with a fixed rod 6, and the fixed rod 6 is provided with two symmetrically distributed automatic stabilizing devices 7; a plurality of L-shaped measuring rods 8 are arranged on the bottom surface of the fixed plate 5, and each measuring rod 8 is connected with a height detection device 9; a lifting seat 10 is arranged on one side of the fixed base 2, and two electric slide rails 11 which are symmetrically distributed are arranged on the lifting seat 10; a lifting plate 12 is arranged between the two electric slide rails 11, and a fixed top seat 13 positioned above the fixed base 2 is arranged on the lifting plate 12; an annular main pipe 14 is arranged in the fixed top seat 13, the top surface of the annular main pipe 14 is connected with an air inlet pipe 15, and the air inlet pipe 15 is connected with a supercritical carbon dioxide air supply bottle 16; a plurality of uniformly distributed gas outlet pipes 17 are arranged on the bottom surface of the annular main pipe 14, and a plasma pipe 18 is connected to one side wall of each gas outlet pipe 17; an annular feed pipe 19 is connected between the end parts of all the plasma pipes 18, and a plasma gas bottle 20 is connected to the top surface of the annular feed pipe 19; a plurality of piezoelectric sensors 21 are uniformly distributed in an annular shape on the edge of the bottom surface of the fixed top seat 13, and each piezoelectric sensor 21 is electrically connected with the electric slide rail 11; the height detection device 9 is electrically connected with the hydraulic cylinder 4.

The height detection device 9 comprises a bracket 22, and a porcelain cylinder 23 is arranged on the bracket 22; a coil 24 is spirally wound on the porcelain cylinder 23, and one end of the coil 24 is connected with a connector lug 25; one end of the measuring rod 8 is in surface contact with the coil 24; a mounting groove 26 is formed in the side wall of the adjusting groove 3 at a position corresponding to the support 22, and a plurality of fixing blocks 27 are arranged on the bottom surface of the mounting groove 26; each fixing block 27 is provided with a fixing tenon groove 28; the side wall of the bracket 22 facing the adjusting groove 3 is provided with a fixing tenon block 29 corresponding to each fixing block 27, and the bracket 22 is fixedly connected with the mounting groove 26 through the fixing tenon block 29 and the fixing tenon groove 28; a first buffer magnet 30 is arranged in the middle of the bottom surface of the lifting plate 12; an electromagnet bar 31 is arranged between the two electric slide rails 11, and the length of the electromagnet bar 31 is the same as that of the electric slide rails 11; the automatic stabilizing device 7 comprises a stabilizing groove 33 on the fixing rod 6; each stabilizing groove 33 is provided with a stabilizing bar 34; one end of each stabilizer bar 34 is provided with a magnet piece 35, and the other end is provided with a plurality of uniformly distributed stabilizer springs 36; one end of each stabilizing spring 36 is fixedly connected with the inner bottom surface of the stabilizing groove 33; the fixed top seat 13 is sleeved with an adjusting frame 37, and a plurality of clamping grooves 38 which are uniformly distributed are formed in the inner side wall of the adjusting frame 37; a plurality of uniformly distributed air outlet holes are formed in the bottom surface of the adjusting frame 37, mounting holes 40 are formed in the bottom surface of the adjusting frame 37 at positions corresponding to the piezoelectric sensors 21, and a sealing ring 41 is arranged on the inner wall of each mounting hole 40; a clamping block 43 is arranged on the side wall of the fixed top seat 13 at a position corresponding to each clamping groove 38, and the clamping block 43 is clamped with the clamping groove 38; a collecting frame 44 is sleeved on the bottom surface of the fixed plate 5, and a balance pipe 46 is arranged on one side wall of the collecting frame 44; the fixing plate 5 is provided with a plurality of through holes 45 which are uniformly distributed.

The working principle is as follows: when the device is used, the whole device is connected with an external power supply, so that the piezoelectric sensor 21 and the height detection device 9 are automatically started, then the middle hole of the gear to be processed penetrates through the fixing rod 6, the magnet sheet 35 can be automatically adsorbed on the surface of the inner hole of the gear due to the arrangement of the magnet sheet 35, so that the magnet sheet 35 can drive the stabilizer bar 34 to move, and when the radius of the inner hole of the gear is larger than the length of the stabilizer bar 34, the magnet sheet 35 can drive the stabilizer bar 34 to move outwards, so that the stabilizer bar 34 stretches the stabilizing spring 36; when the radius of the inner hole of the gear is smaller than the length of the stabilizer bar 34, the magnet piece 35 drives the stabilizer bar 34 to move inwards, so that the stabilizer bar 34 compresses the stabilizer spring 36; the stabilizer bar 34 and the magnet piece 35 are allowed to fix the position of the gear under the reaction force of the stabilizer spring 36; simultaneously, the gear is placed back on fixed plate 5, can make fixed plate 5 move toward 4 directions of pneumatic cylinder under the effect of gear gravity, fixed plate 5 removes and can drive measuring stick 8 and remove, the one end of measuring stick 8 can move on coil 24, thereby change the quantity of coil 24 circular telegram, thereby the size of resistance has been changed, the time that pneumatic cylinder 4 started can be controlled to numerical value through resistance, thereby make pneumatic cylinder 4 drive fixed plate 5 up-move, and make the top surface of gear coincide with unable adjustment base 2's top surface all the time.

Then starting the electric slide rail 11 and the electromagnet strip 31, after the electric slide rail 11 is started, driving the lifting plate 12 to move towards the fixed base 2, and driving the fixed footstock 13 to move together by the movement of the lifting plate 12, so that the fixed footstock 13 approaches towards the fixed base 2, when the bottom surface of the fixed footstock 13 is in contact with and overlapped with the top surface of the fixed base 2, the piezoelectric sensor 21 can detect an electric signal, and then the piezoelectric sensor 21 controls the electric slide rail 11 to stop; in the moving process of the electric slide rail 11, due to the arrangement of the electromagnet strip 31 and the first buffer magnet 30, the electromagnet strip 31 and the first buffer magnet 30 are attracted to each other by utilizing the principle that magnets attract each other in opposite polarities, so that the moving speed of the fixed top seat 13 can be reduced, a buffer effect is further achieved, direct collision between the fixed top seat 13 and the fixed base 2 is avoided, abrasion is reduced, and the service life is prolonged; after the bottom surface of the fixed top seat 13 is contacted and superposed with the top surface of the fixed base 2, the supercritical carbon dioxide gas supply bottle 16 and the plasma gas bottle 20 are opened, and after the supercritical carbon dioxide gas supply bottle 16 is opened, the supercritical carbon dioxide in the supercritical carbon dioxide gas supply bottle enters the annular main pipe 14 through the gas inlet pipe 15 and is uniformly distributed to the plurality of gas outlet pipes 17 and rapidly output, so that the supercritical carbon dioxide can rapidly wash the surface of the gear tooth socket, certain oxide layers on the surface of the gear tooth socket can be dissolved, and the surface of the gear tooth socket is polished; meanwhile, after the plasma gas bottle 20 is opened, the plasma gas in the plasma gas bottle is uniformly distributed into the plurality of plasma tubes 18 through the annular feeding tube 19 and is accelerated into the gas outlet tube 17 through the plasma tubes 18, so that the plasma gas and the supercritical carbon dioxide gas flow together perform plasma polishing and grinding on the surface of the gear tooth socket; therefore, the automatic cold machining polishing process combining air flow polishing and plasma polishing is realized, the machining precision can be improved, and the automatic cold machining polishing process has the advantages of low labor intensity and high working efficiency.

In the process of grinding and polishing, the air flow passing through the gear tooth grooves enters the collecting frame 44 through the through holes 45, so that the waste chips and the waste liquid after grinding and polishing enter the collecting frame 44 together through the through holes 45 along with the air flow, and further the cleaning is convenient; while the balance tube 46 enables the internal pressure to remain constant; when the tooth profile of the gear of processing changes, can cup joint adjustment frame 37 on fixed footstock 13 to make fixture block 43 joint on fixed footstock 13 in the draw-in groove 38 of adjustment frame 37, because the outward flange department that corresponds outlet duct 17 on the adjustment frame 37 is provided with the baffle, thereby made things convenient for the change to the air outlet, and then can adapt to the processing of polishing of the gear of different shapes.

Claims

1. The utility model provides a gear polishing equipment that polishing precision is high which characterized in that: comprises a frame (1), wherein a fixed base (2) is arranged on the surface of the frame (1); an adjusting groove (3) is arranged on the fixed base (2), and a hydraulic cylinder (4) is arranged in the adjusting groove (3); a fixed plate (5) is connected to the hydraulic cylinder (4), a fixed rod (6) is arranged in the middle of the top surface of the fixed plate (5), and two automatic stabilizing devices (7) which are symmetrically distributed are arranged on the fixed rod (6); a plurality of L-shaped measuring rods (8) are arranged on the bottom surface of the fixed plate (5), and each measuring rod (8) is connected with a height detection device (9); a lifting seat (10) is arranged on one side of the fixed base (2), and two electric sliding rails (11) which are symmetrically distributed are arranged on the lifting seat (10); a lifting plate (12) is arranged between the two electric sliding rails (11), and a fixed top seat (13) positioned above the fixed base (2) is arranged on the lifting plate (12); an annular main pipe (14) is arranged in the fixed top seat (13), the top surface of the annular main pipe (14) is connected with an air inlet pipe (15), and the air inlet pipe (15) is connected with a supercritical carbon dioxide air supply bottle (16); a plurality of uniformly distributed air outlet pipes (17) are arranged on the bottom surface of the annular main pipe (14), and one side wall of each air outlet pipe (17) is connected with a plasma pipe (18); the end parts of all the plasma tubes (18) are connected with an annular feeding tube (19), and the top surface of the annular feeding tube (19) is connected with a plasma gas bottle (20); a plurality of piezoelectric sensors (21) are uniformly distributed in an annular mode and are arranged on the edge of the bottom face of the fixed top seat (13), and each piezoelectric sensor (21) is electrically connected with the electric sliding rail (11); the height detection device (9) is electrically connected with the hydraulic cylinder (4).

2. The gear polishing apparatus with high polishing precision according to claim 1, characterized in that: the height detection device (9) comprises a support (22), and a porcelain cylinder (23) is arranged on the support (22); a coil (24) is spirally wound on the porcelain cylinder (23), and one end of the coil (24) is connected with a connector lug (25); one end of the measuring rod (8) is in surface contact with the coil (24).

3. The gear polishing apparatus having high polishing accuracy according to claim 2, wherein: a mounting groove (26) is formed in the side wall of the adjusting groove (3) at a position corresponding to the support (22), and a plurality of fixing blocks (27) are arranged on the bottom surface of the mounting groove (26); each fixed block (27) is provided with a fixed mortise (28); the side wall of the support (22) facing the adjusting groove (3) is provided with a fixed tenon block (29) at a position corresponding to each fixed block (27), and the support (22) is fixedly connected with the mounting groove (26) through the fixed tenon block (29) and the fixed tenon groove (28).

4. The gear polishing apparatus with high polishing precision according to claim 1, characterized in that: a first buffer magnet (30) is arranged in the middle of the bottom surface of the lifting plate (12); an electromagnet strip (31) is arranged between the two electric slide rails (11), and the length of the electromagnet strip (31) is the same as that of the electric slide rails (11).

5. The gear polishing apparatus with high polishing precision according to claim 1, characterized in that: the automatic stabilizing device (7) comprises a stabilizing groove (33) positioned on the fixing rod (6); each stabilizing groove (33) is internally provided with a stabilizing rod (34); one end part of each stabilizer bar (34) is provided with a magnet piece (35), and the other end part is provided with a plurality of uniformly distributed stabilizer springs (36); one end of each stabilizing spring (36) is fixedly connected with the inner bottom surface of the stabilizing groove (33).

6. The gear polishing apparatus with high polishing precision according to claim 1, characterized in that: an adjusting frame (37) is sleeved on the fixed top seat (13), and a plurality of clamping grooves (38) which are uniformly distributed are formed in the inner side wall of the adjusting frame (37); a plurality of air outlet holes which are uniformly distributed are formed in the bottom surface of the adjusting frame (37), mounting holes (40) are formed in the positions, corresponding to the piezoelectric sensors (21), on the bottom surface of the adjusting frame (37), and a sealing ring (41) is arranged on the inner wall of each mounting hole (40); the side wall of the fixed top seat (13) is provided with a clamping block (43) at a position corresponding to each clamping groove (38), and the clamping block (43) is clamped with the clamping grooves (38).

7. A gear polishing apparatus having high polishing accuracy according to any one of claims 1 to 6, wherein: a collecting frame (44) is sleeved on the bottom surface of the fixing plate (5), and a balance pipe (46) is arranged on one side wall of the collecting frame (44); the fixed plate (5) is provided with a plurality of through holes (45) which are uniformly distributed.