WO2010057374A1

WO2010057374A1 - Worm polisher

Info

Publication number: WO2010057374A1
Application number: PCT/CN2009/070786
Authority: WO
Inventors: 方广忠; 金荣华
Original assignee: 许晓华
Priority date: 2008-11-20
Filing date: 2009-03-13
Publication date: 2010-05-27
Also published as: CA2737358C; MY158301A; KR101249816B1; KR20110036853A; AU2009317738A1; CA2737358A1; AU2009317738B2; AU2009317738C1; NZ592260A; CN101733487A

Abstract

A worm polisher comprises an upright drawing plate (4) besides circumference of a polishing rag wheel (3), a movable clamper and a fixed clamper which are coaxially disposed on the upright drawing plate. A rotary platform (13) is disposed below the guide block (12) of the upright drawing plate, and a second cylinder (14) disposed on the rotary platform drives the guide block to make the upright drawing plate slide on guide rails. The rotary platform is pivotally connected to the support frame (15), the lower part of the support frame is slideably connected to a longitudinal slide-rail (16) on a pedestal (22), and a third cylinder (19) is disposed on the pedestal. The worm polisher of the invention has a low cost, and provides good quality of worm.

Description

Worm polishing machine

Technical field

The invention relates to a worm polishing machine, belonging to the technical field of worm production and processing equipment.

technical background

As one of the main components of the worm gear reducer, the worm must improve the transmission efficiency of the gear reduction motor. The problem to be solved must be to improve the smoothness of the worm. At present, most of the worms adopt the grinding processing method, and the high surface roughness is required, the cost is relatively high, and the polishing method is economical and low in cost. However, the prior art has not seen equipment specially used for worm polishing, and more manual work is performed, and the labor intensity angle is large, and it is difficult to ensure quality consistency by artificially controlling the quality.

Summary of the invention

The object of the present invention is to provide a worm polishing machine with relatively low cost and easy to ensure the consistency of the processing quality of the worm, which solves the labor intensity of the prior art that the manual operation of the worm is polished, and it is difficult to control the consistency of the worm quality. And other issues.

The above technical object of the present invention is mainly solved by the following technical solutions: It comprises a frame, the frame is provided with a cloth wheel drive motor, and a polishing cloth wheel and a polishing cloth are arranged on the output shaft of the cloth wheel drive motor. A vertical carriage is disposed beside the circumference of the wheel, and the vertical carriage is provided with a first cylinder and a top drive motor spaced apart from each other, and a movable tip is connected to the piston rod of the first cylinder, and the top drive motor a fixed tip is disposed on the output shaft, and the movable top and the fixed top are oppositely disposed coaxially; the lower surface of the vertical carriage is fixedly mounted with a guiding block, and the rotating block is disposed below the guiding block a guide rail extending along an axis parallel to the movable tip and the fixed tip, the vertical carriage is slidably connected to the guide rail through the guide block, the second cylinder is mounted on the rotary table, and the piston rod of the second cylinder is connected with the guide block. The second cylinder drives the guide block to cause the vertical carriage to slide along the guide rail; The moving platform is pivotally connected to the bracket, and the rotating table and the bracket are relatively locked. The tilting angle of the axis of the movable tip and the fixed tip can be changed by the rotation of the rotating table; the longitudinal sliding rail is arranged under the bracket. The longitudinal rail extends in a direction perpendicular to the axis of the cloth wheel, and the bracket is slidably coupled to the longitudinal rail, and the bracket is provided with a first transmission nut, the first transmission nut is threadedly engaged with the longitudinal screw, and the longitudinal screw One end is connected with the piston rod of the third cylinder, the third cylinder can drive the longitudinal movement of the longitudinal screw, and the axial movement of the longitudinal screw drives the bracket to slide along the longitudinal slide; the longitudinal slide and the third cylinder are mounted on the base The frame is mounted with a horizontal sliding rail corresponding to the bottom of the base. The horizontal sliding rail extends in a direction parallel to the axis of the polishing cloth wheel. The base is slidably connected to the horizontal sliding rail, and the second transmission nut is fixedly mounted on the base. A transverse screw is connected to the output shaft of the axial feed motor disposed on the frame, and the transverse screw is screwed to the second transmission nut on the base, and the axial feed motor drives the horizontal Rotating toward the screw, the transverse screw is threadedly engaged with the second transmission nut to cause the base to slide along the lateral rail. When working, firstly, according to the spiral angle of the worm to be machined, the tilt angle of the vertical carriage is set by adjusting the relative position between the rotary table and the bracket, and the axial relative positions of the fixed tip and the movable tip are adjusted, so that the two tips can be The worm workpiece is subject to loading and unloading and should not be too long. In the initial state, the first cylinder drives the movable tip away from the fixed tip so that the distance between the fixed tip and the movable tip is greater than the axial length of the workpiece to be processed, and the second cylinder drives the vertical carriage to slide along the guide rail on the rotating table to make the worm The clamping position of the workpiece is axially away from the polishing cloth wheel, and the third cylinder drives the bracket to slide along the longitudinal sliding rail to drive the vertical carriage so that the clamping position of the worm workpiece is radially away from the polishing cloth wheel; The top end hole of the machining worm workpiece is aligned with the fixed top end, and the first cylinder driving movable top is matched with the top hole of the other end of the worm workpiece to be processed to clamp the worm workpiece to be processed between the movable top and the fixed top; then the cloth is started The wheel drive motor drives the polishing cloth wheel to rotate, the top drive motor drives the worm workpiece to be rotated, and then the second cylinder drives the vertical carriage to slide along the guide rail on the rotary table to make the axial position of the worm workpiece to be near the circumference of the polishing cloth wheel. And the third cylinder further drives the bracket to slide along the longitudinal slide rail to make the circle of the worm to be processed and the polishing cloth wheel Contacting the axial feed motor is driven by a base drive nut fitted on the second lateral worm screw and causes the base The moving movement occurs so that the worm is polished by the polishing cloth wheel from one end to the other end; the above operation can be repeated according to the roughness level of the worm surface to complete the polishing operation of the worm. When a worm workpiece is processed, return to the initial state to remove the finished worm workpiece, and reinstall the new worm workpiece to be machined to repeat the above action.

Preferably, the other end of the longitudinal screw is sleeved with a transmission sleeve, and the longitudinal screw and the transmission sleeve are connected in a circumferential direction by a manual transmission, and relative axial movement between the longitudinal screw and the transmission sleeve occurs. A hand wheel is connected to the drive sleeve, and the drive sleeve can be driven to rotate by the hand wheel. Wherein, when the third cylinder drives the longitudinal movement of the longitudinal screw, the relative axial movement occurs between the longitudinal screw and the transmission sleeve; and when the transmission sleeve is rotated by the hand wheel, the transmission sleeve passes the key and the longitudinal thread The rod is rotated to rotate the longitudinal screw rod, and the longitudinal screw rod simultaneously drives the piston rod of the third cylinder to rotate together, and the longitudinal screw rod is adjusted by the first transmission nut mounted on the bracket to adjust the between the vertical carriage and the polishing cloth wheel. The position, in order to compensate for the difference in the diameter of the polishing cloth wheel due to wear, can also be adapted to the needs of the spiral groove depth of different worm workpieces.

Preferably, a protective cover is disposed outside the frame, and the protective cover is provided with an opening door for opening the protective cover for operation by an operator in the vicinity of the vertical sliding plate, and the protective cover is provided with an exhausting and dust removing mechanism, The suction opening of the exhaust dust removal mechanism is placed close to the polishing cloth wheel. Wherein, the protective cover is arranged outside the frame to prevent the metal scraps generated during the polishing process of the polishing cloth wheel from polishing the worm workpiece and the debris falling during the wear of the polishing cloth wheel to fall out to keep the working environment clean; The air suction port of the exhaust dust removal mechanism is closer to the polishing cloth wheel to facilitate the removal of the metal chips and the debris of the polishing cloth wheel; in addition, the operator can open and close the worm workpiece by opening the door.

Preferably, the movable tip is connected with the piston rod of the first cylinder through a connecting plate, and the connecting plate is provided with two guiding holes, and the two guiding holes are distributed with two sides distributed on two sides of the first cylinder. The fixed guide columns are respectively slidably connected. Wherein, the movable top is connected to the piston rod of the first cylinder through the connecting plate, and the connecting plate is slidably connected to the two fixed guiding columns through the two guiding holes to improve the movable top The guiding effect prevents the top deviation of the activity and ensures that the active tip is aligned with the top hole of the worm workpiece. Preferably, the guide rails on the turntable are composed of two parallel to each other, and the two guide rails are distributed on both sides of the piston rod of the second cylinder. Wherein, the vertical carriage and the rotary table are slidably connected by two guide rails distributed on two sides of the piston rod of the second cylinder, thereby improving the guiding direction between the vertical carriage and the rotary table, and ensuring the vertical carriage along the direction The worm workpiece moves in the axial direction to ensure the polishing effect of the polishing cloth wheel on the worm workpiece.

Preferably, the fixed tip is mounted on the output shaft of the tip drive motor by a three-jaw chuck. Among them, the fixed tip is installed through the three-jaw chuck and the output shaft of the driving motor, which can easily adjust the axial distance between the fixed tip and the movable tip to meet the polishing requirements of the worm workpieces of different lengths.

Therefore, the invention has the characteristics of relatively low cost and easy to ensure the consistency of the processing quality of the worm.

DRAWINGS

Figure 1 is a schematic front view of the present invention;

Figure 2 is a top plan view of the present invention;

Figure 3 is a top plan view of the lower portion of the stent of the present invention.

detailed description

The technical solutions of the present invention will be further specifically described below by way of embodiments and with reference to the accompanying drawings.

Embodiment 1 : As shown in FIG. 1 , FIG. 2 and FIG. 3 , a rack wheel drive motor 2 is disposed on the frame 1 , and a polishing cloth wheel 3 and a circumference of the polishing cloth wheel 3 are disposed on the output shaft of the cloth wheel drive motor 1 . There is a vertical carriage 4, and the vertical carriage 4 is provided with a first cylinder 5 and a top drive motor 6 spaced apart, the first gas A movable tip 7 is connected to the piston rod of the cylinder 5, and the movable tip 7 is connected with the piston rod of the first cylinder 5 through the connecting plate 8. The connecting plate 8 is provided with two guiding holes, and the two guiding holes are distributed on the first Two fixed guide columns 9 on both sides of one cylinder 5 are slidably connected. A fixed tip 10 is disposed on the output shaft of the top drive motor 6, and the fixed tip 10 is mounted on the output shaft of the top drive motor 6 through the three-jaw chuck 11, and the movable tip 7 and the fixed tip 10 are disposed coaxially with each other.

The lower surface of the vertical carriage 4 is fixedly mounted with a guide block 12, and below the guide block 12 is provided a rotary table 13, and the rotary table 13 is provided with guide rails extending in the direction parallel to the axis of the movable tip 7 and the fixed tip 10 (Fig. The guide rail is composed of two parallel shafts, and the vertical carriage 4 is slidably connected to the guide rail through the guide block 12, and the second cylinder 14 is mounted on the rotary table 13, and the two guide rails are distributed to the second cylinder 14 On both sides of the piston rod, the piston rod of the second cylinder 14 is connected to the guide block 12, and the second cylinder 14 drives the guide block 12 so that the vertical carriage 4 slides along the two guide rails.

The rotating table 13 is pivotally connected to the bracket 15, and the rotating table 13 and the bracket 15 are relatively locked. The inclination angles of the axes of the movable tip 7 and the fixed tip 10 can be changed by the rotation of the rotating table 13; There is a longitudinal slide rail 16 (see FIG. 3), the longitudinal slide rail 16 extends in a direction perpendicular to the axis of the polishing cloth wheel 3, the bracket 15 is slidably connected with the longitudinal slide rail 16, and the bracket 15 is provided with a first transmission nut 17, A transmission nut 17 is threadedly engaged with the longitudinal screw 18, one end of the longitudinal screw 18 is connected to the piston rod of the third cylinder 19, and the other end of the longitudinal screw 18 is sleeved with a transmission sleeve 20, the longitudinal screw 18 and the transmission shaft The sleeve 20 is circumferentially connected by a healthy connection, and the third cylinder 19 can drive the longitudinal movement of the longitudinal screw 18 relative to the transmission sleeve 20. The axial movement of the longitudinal screw 18 drives the bracket 15 to slide along the longitudinal slide 16, the drive sleeve A hand wheel 21 is connected to the hand wheel 21, and the drive shaft sleeve 20 is driven to rotate. When the third cylinder 19 drives the longitudinal screw rod 18 to move axially, a relative axis occurs between the longitudinal screw rod 18 and the transmission sleeve 20. Moving toward; while passing the handwheel 2 When the drive sleeve 20 is rotated, the drive sleeve 20 rotates with the longitudinal screw 18 to rotate the longitudinal screw 18. The longitudinal screw 18 simultaneously drives the piston rod of the third cylinder 19 to rotate together, and the longitudinal screw 18 passes. The first transmission nut 17 mounted on the bracket 15 cooperates to adjust the vertical carriage 4 and The position between the polishing cloth wheels 3 is used to compensate for the difference in diameter of the polishing cloth wheel 3 due to wear, and it is also possible to adapt to the spiral groove depth of different worm workpieces.

The longitudinal rail 16 and the third cylinder 19 are both mounted on the base 22. The frame 1 is mounted with two parallel transverse rails 23 corresponding to the base 22, and the transverse rails 23 are parallel to the axis of the polishing cloth wheel 3. The second base nut 22 is fixedly mounted on the base 22, and the transverse screw 26 is connected to the output shaft of the axial feed motor 25 disposed on the frame 1. The rod 26 is threadedly coupled to the second transmission nut 24 on the base 22, the axial feed motor 25 drives the transverse screw 26 to rotate, and the transverse screw 26 is threadedly engaged with the second transmission nut 24 to cause the base 22 to slide along the transverse rail 23 slide.

When working, firstly, according to the spiral angle of the worm to be machined, the tilt angle of the vertical carriage is set by adjusting the relative position between the rotary table and the bracket, and the axial relative positions of the fixed tip and the movable tip are adjusted, so that the two tips can be The worm workpiece is subject to loading and unloading and should not be too long. In the initial state, the first cylinder drives the movable tip away from the fixed tip so that the distance between the fixed tip and the movable tip is greater than the axial length of the workpiece to be processed, and the second cylinder drives the vertical carriage to slide along the guide rail on the rotating table to make the worm The clamping position of the workpiece is axially away from the polishing cloth wheel, and the third cylinder drives the bracket to slide along the longitudinal sliding rail to drive the vertical carriage so that the clamping position of the worm workpiece radially away from the polishing cloth wheel; as shown in FIG. 1 and FIG. 2 As shown, when the clamping is performed, the top end hole of the worm workpiece 27 to be processed is aligned with the fixed tip, and the first cylinder driving movable tip is matched with the top hole of the other end of the worm workpiece to be processed to clamp the worm workpiece to be processed. Between the top and the fixed tip; then the cloth wheel drive motor is activated to drive the polishing cloth wheel to rotate, the top drive motor drives the workpiece to be processed to rotate, and then the second cylinder drives the vertical carriage to slide along the guide rail on the rotary table to make the workpiece to be processed The axial position is close to the circumference of the polishing cloth wheel, and the third cylinder further drives the bracket to slide along the longitudinal rail so that the workpiece is to be processed The worm is in contact with the circumference of the polishing cloth wheel, and the axial feed motor drives the base by the cooperation of the transverse screw and the second transmission nut on the base, so that the worm moves forward, so that the worm is polished by the polishing cloth wheel from one end to the other end. Repeat the above actions according to the worm surface roughness level to complete the worm Polishing operation. When a worm workpiece is processed, return to the initial state to remove the finished worm workpiece, and reinstall the new worm workpiece to be machined to repeat the above action.

Claims

Claim

A worm polishing machine comprising a frame, wherein the frame is provided with a cloth wheel drive motor, and a polishing cloth wheel is arranged on the output shaft of the cloth wheel drive motor, and a circumference of the polishing cloth wheel is arranged There is a vertical carriage, which is provided with a first cylinder and a top drive motor which are arranged at intervals, and a piston rod of the first cylinder is connected with a movable tip, and the shaft of the top drive motor is arranged on the shaft The movable top and the fixed top are oppositely disposed coaxially; the lower surface of the vertical carriage is fixedly mounted with a guiding block, and the rotating block is provided below the guiding block, and the rotating table is arranged parallel to a guide rail extending in the axial direction of the movable tip and the fixed tip, the vertical carriage is slidably connected to the guide rail through the guide block, the second cylinder is mounted on the rotary table, the piston rod of the second cylinder is connected with the guide block, and the second cylinder is driven to guide The block causes the vertical carriage to slide along the guide rail; the rotary table is pivotally connected to the bracket, and the rotation table and the bracket can be relatively locked, and the inclination angles of the axes of the movable tip and the fixed tip can be Changed by the rotation of the rotating table; a longitudinal sliding rail is disposed under the bracket, the longitudinal sliding rail extends in a direction perpendicular to the axis of the cloth wheel, the bracket is slidably connected with the longitudinal sliding rail, and the first transmission nut is disposed on the bracket The first transmission nut is threadedly engaged with the longitudinal screw rod, one end of the longitudinal screw rod is connected with the piston rod of the third cylinder, the third cylinder can drive the longitudinal movement of the longitudinal screw rod, and the axial movement of the longitudinal screw rod drives the bracket Sliding along a longitudinal slide rail; the longitudinal slide rail and the third cylinder are both mounted on the base, and the rack is mounted with a lateral slide rail corresponding to the bottom of the base, and the transverse slide rail extends in a direction parallel to the axis of the polishing cloth wheel. The base is slidably connected with the horizontal sliding rail, and the second transmission nut is fixedly mounted on the base, and the transverse screw of the axial feed motor disposed on the frame is connected with the transverse screw, the transverse screw and the second transmission on the base The nut is threaded, the axial feed motor drives the transverse screw to rotate, and the transverse screw is threadedly engaged with the second transmission nut to cause the base to slide along the lateral slide.

2. A worm polishing machine according to claim 1 wherein said longitudinal threaded rod is further One end sleeve is provided with a transmission sleeve, and the longitudinal screw rod and the transmission sleeve are connected in a circumferential direction through a healthy transmission, and a relative axial movement can occur between the longitudinal screw rod and the transmission sleeve, and the hand wheel is connected to the transmission shaft sleeve through The hand wheel can drive the drive sleeve to rotate.

3. The worm polishing machine according to claim 1 or 2, wherein a shield is disposed outside the frame, and the shield is provided adjacent to the vertical carriage for opening the shield for operation by an operator. The door is opened, and the protective cover is provided with an exhaust dust removing mechanism, and the air suction opening of the exhaust dust removing mechanism is disposed close to the polishing cloth wheel.

The worm polishing machine according to claim 1 or 2, wherein the movable top is connected to the piston rod of the first cylinder by a connecting plate, and the connecting plate is provided with two guiding holes, The two guiding holes are respectively slidably connected to the two fixed guiding columns distributed on both sides of the first cylinder.

A worm polishing machine according to claim 1 or 2, wherein the guide rails on the rotary table are composed of two parallel to each other, and the two guide rails are distributed on the piston rods of the second cylinder.

6. A worm polishing machine according to claim 1 or 2, wherein the fixed tip is mounted on the output shaft of the tip drive motor by a three-jaw chuck.