CN210281802U

CN210281802U - Polishing machine

Info

Publication number: CN210281802U
Application number: CN201921157483.0U
Authority: CN
Inventors: 黄德柱
Original assignee: Yongkang Hubang Machinery Technology Co Ltd
Current assignee: Yongkang Hubang Machinery Technology Co Ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-04-10
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses a polishing machine, aim at overcoming the problem that unloading and polishing processing go on simultaneously among the prior art work piece, it includes the frame, fixture, polishing mechanism and feed mechanism, feed mechanism includes first slip table, second slip table and cam wheel splitter, fixture includes the support, be provided with rotatable lower pressure disk on the support, the transmission is connected with first motor on the lower pressure disk, be provided with first cylinder on the support, be provided with rotatable last pressure disk on the output of first cylinder, first motor can drive the centre gripping and rotate at last pressure disk and the work piece of lower pressure disk between, the output end of cam wheel splitter is fixed to be set up on the support, lower pressure disk and last pressure disk are two at least, the cam wheel splitter can drive the work piece rotation in a circumferential direction of centre gripping between last pressure disk and the lower pressure disk, the work piece of different positions can go on unloading and polishing simultaneously.

Description

Polishing machine

Technical Field

The utility model belongs to the processing equipment of stainless steel product refers in particular to a burnishing machine.

Background

The vacuum cup is usually made of stainless steel, and in the process of machining and forming, multiple processes such as pipe cutting, opening rolling, cutting, necking, flanging, polishing, paint spraying and the like need to be carried out, wherein the polishing is one of the last processes of the forming of the vacuum cup, and has great influence on the appearance and the using effect of the vacuum cup.

The utility model discloses a chinese utility model with application number 201821300372.6 a centre gripping burnishing device of burnishing machine, it is including the fixture that is used for the centre gripping work piece and the polishing mechanism who is used for polishing the work piece, and clamping device pushes up the both ends of work piece tightly through last die sleeve and the bed die sleeve of both sides, then polishes the processing with the work piece through the emery wheel.

However, the prior art is not perfect, the clamping mechanism only has one station, and in the process of workpiece feeding and discharging, the equipment cannot be polished at the moment, so that the processing efficiency is low.

SUMMERY OF THE UTILITY MODEL

For overcoming the not enough and problem that exists of prior art, the utility model provides a also can carry out polishing processing, the burnishing machine that machining efficiency is high when going up unloading.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a polishing machine, comprising:

a frame;

the clamping mechanism comprises a support, a rotatable lower pressing plate is arranged on the support, a first motor is connected to the lower pressing plate in a transmission mode, a first air cylinder is arranged on the support, a rotatable upper pressing plate is arranged at the output end of the first air cylinder, and the first motor can drive a workpiece clamped between the upper pressing plate and the lower pressing plate to rotate;

a polishing mechanism including an abrasive article for polishing a workpiece;

a feeding mechanism is arranged between the polishing mechanism and the clamping mechanism, and the feeding mechanism can drive the clamping mechanism to move so that the grinding tool polishes the workpiece;

the feeding mechanism comprises a first sliding table which is vertically arranged on the rack and slides, a second motor is connected to the first sliding table in a transmission manner, a second sliding table which slides transversely is arranged on the first sliding table, a third motor is connected to the second sliding table in a transmission manner, a cam divider is fixedly arranged on the second sliding table, a fourth motor is connected to the input end of the cam divider, the output end of the cam divider is fixedly arranged on the bracket, and the fourth motor can drive the bracket to rotate through the cam divider;

the number of the lower pressing plates is at least two, the upper pressing plates, the first air cylinders and the first motors correspond to the upper pressing plates one by one, and workpieces clamped between the upper pressing plates and the lower pressing plates can be distributed on the support along the circumferential direction of the output end of the cam divider.

Preferably, the support comprises a sliding rail, the output end of the cam divider is fixedly arranged on the sliding rail, a first sliding plate and a second sliding plate are respectively arranged on the sliding rail in a sliding mode, the first air cylinder is fixedly arranged on the first sliding plate, a first screw rod is rotatably arranged on the sliding rail, a first threaded hole is formed in the first sliding plate, the first screw rod is in threaded connection with the first threaded hole, the first screw rod can drive the first sliding plate to slide towards the lower pressing plate, the lower pressing plate is rotatably arranged on the second sliding plate, the first motor is fixedly arranged on the second sliding plate, a second screw rod is rotatably arranged on the sliding rail, a second threaded hole is formed in the second sliding plate, the second screw rod is in threaded connection with the second threaded hole, and the second screw rod can drive the second sliding plate to slide towards the upper pressing plate.

Preferably, the slide rail is a dovetail slide rail, the first slide plate and the second slide plate are respectively provided with a first dovetail groove and a second dovetail groove, and the first dovetail groove and the second dovetail groove are respectively matched on the slide rail.

Preferably, a vertical rack is fixedly arranged on the rack, the second motor is fixedly arranged on the first sliding table, a gear is fixedly arranged at the output end of the second motor, and the gear is meshed with the rack.

Preferably, a ball screw is arranged between the first sliding table and the second sliding table, a third motor is fixedly arranged on the first sliding table, and the third motor is in transmission connection with the second sliding table through the ball screw.

Preferably, the grinding tool is a sand belt or a cloth wheel or a cotton wheel.

Preferably, when the grinding tool is a cloth wheel or a cotton wheel, a second motor is arranged on the base, a second driving wheel is fixedly arranged at the output end of the second motor, a second driven wheel is rotatably arranged on the base, the second driving wheel and the second driven wheel are connected together through a belt, and the grinding tool is fixedly arranged on the second driven wheel; when the grinding tool is an abrasive belt, a second motor is arranged on the base, a second driving wheel is arranged at the output end of the second motor, a second driven wheel is rotatably arranged on the base, and the second driving wheel and the second driven wheel are connected together through the grinding tool.

Preferably, the number of the polishing mechanisms is at least three, and the grinding tools of the three polishing mechanisms are respectively an abrasive belt, a cloth wheel and a cotton wheel.

Preferably, the rack is provided with a counterweight mechanism connected to the first sliding table, and the counterweight mechanism is used for balancing partial load on the first sliding table.

Preferably, the polishing mechanism comprises a base, the base is arranged on the rack in a sliding mode, a second air cylinder is fixedly arranged on the rack, a spring is arranged between the output end of the second air cylinder and the base, a grinding tool used for polishing a workpiece is arranged on the base, and the second air cylinder can press the grinding tool on the workpiece through the spring.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

(1) the utility model discloses in, through fixture, feed mechanism and polishing mechanism realize the automatic polishing of work piece, it is big to compare work piece polishing processing manual input among the prior art, the problem of inefficiency and easily making mistakes, this burnishing machine only needs to drop into a small amount of workman and goes up unloading and can realize polishing processing, consequently this burnishing machine has that degree of automation is high, the work input is little, the reliable operation, production efficiency is high, be fit for using the advantage under the big border of the working cost that increases day by day at present, make polishing processing process more stable, accurate and controllable.

(2) The utility model discloses in, fixture can the work piece more than two of centre gripping simultaneously to work piece mutual independence, mutual noninterference, when the staff goes up the pressure disk to one and goes up the work piece between the pressure disk down and go up the unloading, polishing mechanism can polish processing to another work piece of going up between pressure disk and the pressure disk down this moment, avoids polishing mechanism work stagnation, has improved work efficiency.

(3) The utility model discloses in, realize the last work piece of fixture and switch between last unloading position and polishing position through the cam wheel splitter, improved the automation of equipment, the initial position is got back to automatically after the cam wheel splitter rotates the round, avoids appearing the idle stroke, consequently this burnishing machine has degree of automation height, polishing efficiency height and structural design reasonable advantage.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic structural view of the counterweight mechanism of the present invention;

fig. 3 is a schematic structural view of the clamping mechanism of the present invention;

fig. 4 is a schematic structural view of a first transmission assembly of the present invention;

fig. 5 is a schematic structural view of a first slide plate of the present invention;

FIG. 6 is a schematic structural view of a second slide plate according to the present invention;

FIG. 7 is a schematic structural view of a polishing mechanism for polishing cotton fibers according to the present invention;

FIG. 8 is a second schematic view of the polishing mechanism of the present invention, wherein the polishing device is made of cotton fiber;

FIG. 9 is a schematic structural view of a polishing mechanism with a sanding belt as a grinding tool according to the present invention;

FIG. 10 is a second schematic view of the polishing mechanism of the present invention, wherein the abrasive device is a belt;

FIG. 11 is a schematic view of a polishing mechanism with a cloth wheel as a grinding tool according to the present invention;

FIG. 12 is a second schematic view of a polishing mechanism with a cloth wheel as a grinding tool according to the present invention;

fig. 13 is one of the schematic structural diagrams of the feeding mechanism of the present invention;

fig. 14 is a second schematic structural view of the feeding mechanism of the present invention;

in the figure: 1-a frame, 2-a polishing mechanism, 3-a clamping mechanism, 4-a feeding mechanism, 5-a counterweight mechanism, 21-a base, 22-a fifth motor, 23-a spring, 24-a second cylinder, 25-a third screw rod, 26-a second transmission component, 27-a loop bar, 28-a cloth wheel, 29-a cotton wheel, 211-a first strip-shaped hole, 212-a third threaded hole, 251-a third hand wheel, 261-a second driving wheel, 262-a second driven wheel, 263-a belt, 264-a sanding belt, 30-a lower pressing plate, 31-a first motor, 32-an upper pressing plate, 33-a sliding rail, 34-a first transmission component, 35-an axial fixing component, 36-a first screw rod, 37-a second screw rod and 38-a first sliding plate, 39-a second sliding plate, 40-a first cylinder, 341-a first driving wheel, 342-a first driven wheel, 343-a synchronous belt, 344-a tensioning wheel, 345-a wheel carrier, 351-a linear bearing, 352-a connecting shaft, 353-a clamping plate, 361-a first hand wheel, 371-a second hand wheel, 381-a first threaded hole, 382-a first dovetail groove, 391-a second threaded hole, 392-a second dovetail groove, 393-a second strip-shaped hole, 41-a first sliding table, 42-a second sliding table, 43-a second motor, 44-a third motor, 45-a fourth motor, 46-a rack, 47-a gear, 48-a ball screw, 49-a cam divider, 51-a chain wheel, 52-a chain and 53-a counterweight block.

Detailed Description

To facilitate understanding of those skilled in the art, the present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 14, a polishing machine is mainly used for finishing a polishing process of a workpiece (the workpiece is a cup made of stainless steel), and comprises a frame 1, a polishing mechanism 2, a clamping mechanism 3, a feeding mechanism 4 and a counterweight mechanism 5.

The clamping mechanisms 3 are used for clamping workpieces and driving the workpieces to rotate, and the number of the clamping mechanisms is two. The clamping mechanism 3 comprises a support, a rotatable lower pressure plate 30 is arranged on the support, a first motor 31 is in transmission connection with the lower pressure plate 30, the first motor 31 can drive the lower pressure plate 30 to rotate, a first air cylinder 40 is arranged on the support, a rotatable upper pressure plate 32 is arranged at the output end of the first air cylinder 40, the upper pressure plate 32 can rotate at the output end of the first air cylinder 40, the first air cylinder 40 can drive the upper pressure plate 32 to move towards the lower pressure plate 30, therefore, a workpiece can be clamped between the upper pressure plate 32 and the lower pressure plate 30, and the first motor 31 can drive the workpiece clamped between the upper pressure plate 32 and the lower pressure plate 30 to rotate.

The support comprises a slide rail 33, a first slide plate 38 and a second slide plate 39, the first slide plate 38 is arranged on the slide rail 33 in a sliding manner, a first screw rod 36 is arranged on the slide rail 33 in a rotating manner, the first screw rod 36 can be arranged on the slide rail 33 in a rotating manner through a bearing in a rotating manner, the first screw rod 36 is axially fixed on the slide rail 33, the length direction of the first screw rod 36 is consistent with the sliding direction of the first slide plate 38, a first threaded hole 381 is formed in the first slide plate 38, the first screw rod 36 is in threaded connection with the first threaded hole 381, a first air cylinder 40 is fixedly arranged on the first slide plate 38, the first screw rod 36 is rotated, the first screw rod 36 can drive an upper pressure plate 32 on the first slide plate 38 to slide on the slide rail 33 and to be close to or far away from a lower pressure plate 30, the position of the upper pressure plate 32 on the slide rail 33 is adjusted.

The outer end of first screw rod 36 is fixed and is provided with first hand wheel 361, and staff's accessible first hand wheel 361 comes bare-handed rotation first screw rod 36, further convenient regulation.

The staff can rotate first screw rod 36 according to the height dimension of work piece, adjusts upper pressure disk 32 and lower pressure disk 30 to suitable distance, and first cylinder 40 can press from both sides the work piece tightly between upper pressure disk 32 and lower pressure disk 30 in less flexible within range under this distance, and the work piece can firmly be held between upper pressure disk 32 and lower pressure disk 30 and rotatory, therefore this burnishing machine has application scope extensively, the reliable stable and high advantage of machining precision of centre gripping.

The second sliding plate 39 is slidably disposed on the sliding rail 33, the sliding direction of the second sliding plate 39 is the same as the sliding direction of the first sliding plate 38, the second screw 37 is rotatably disposed on the sliding rail 33, the second screw 37 can be rotatably disposed on the sliding rail 33 through a bearing, the second screw 37 is axially fixed on the sliding rail 33, the length direction of the second screw 37 is the same as the sliding direction of the second sliding plate 39, the second sliding plate 39 is provided with a second threaded hole 391, the second screw 37 is threadedly connected to the second threaded hole 391, the second screw 37 is rotated, the first motor 31 is fixedly disposed on the second sliding plate 39, the lower platen 30 is rotatably disposed on the second sliding plate 39, the second screw 37 can drive the lower platen 30 on the second sliding plate 39 to slide on the sliding rail 33 and move the upper platen 32 closer to or farther away from the sliding rail 33, so as to realize the position adjustment of the lower platen 30 on the sliding rail 33, thereby realizing the position adjustment of the workpiece clamped between the upper platen 32 and the lower platen 30 on the sliding rail 33, and the efficiency of distance adjustment is further improved by the adjustment of the first screw 36 and the second screw 37.

The worker can rotate the first screw rod 36 and the second screw rod 37 to adjust the distance between the upper pressure plate 32 and the lower pressure plate 30, so that the adjustment efficiency is further improved, and the workpiece is conveniently clamped at a proper position on the slide rail 33.

The outer end of the second screw rod 37 is fixedly provided with a second hand wheel 371, and the worker can rotate the second screw rod 37 by hands through the second hand wheel 371, so that the adjustment is further facilitated.

The slide rail 33 is a dovetail slide rail, the first slide plate 38 and the second slide plate 39 are respectively provided with a first dovetail groove 382 and a second dovetail groove 392, the first dovetail groove 382 and the second dovetail groove 392 are respectively adapted to the slide rail 33, and the anti-overturning capability of the clamping mechanism 3 can be improved by adopting a dovetail structure.

Lower pressure disk 30 links together through the transmission of first drive assembly 34 with the first motor 31 that corresponds, first drive assembly 34 includes first action wheel 341, first follow driving wheel 342 and hold-in range 343, first action wheel 341 is fixed to be set up on the output of first motor 31, first follow driving wheel 342 is fixed to be set up under on pressure disk 30, first action wheel 341 and first follow driving wheel 342 are the synchronizing wheel, first action wheel 341 and first follow driving wheel 342 link together through hold-in range 343, thereby pressure disk 30 is rotatory under first motor 31 can drive, the mode through hold-in range 343 transmission has the drive ratio accuracy, compact structure, and advantage little to the work piece effort, in the polishing process, pressure disk 30 rotational speed is stable down, the vibration is little, polishing effect has been improved.

The rotatable tension wheel 344 is arranged on the support, and the tension wheel 344 can be pressed on the synchronous belt 343, so that the synchronous belt 343, the first driving wheel 341 and the first driven wheel 342 are fully meshed together, and the transmission effect is guaranteed. Specifically, the tension pulley 344 is provided on the second slide plate 39 to rotate.

A second strip-shaped hole 393 is formed in the second sliding plate 39, the length direction of the second strip-shaped hole 393 faces the synchronous belt 343, a wheel carrier 345 penetrates the second strip-shaped hole 393, the wheel carrier 345 is limited in the second strip-shaped hole 393 to slide, the tension wheel 344 is rotatably arranged on the wheel carrier 345, the wheel carrier 345 can be fixed at any position on the second strip-shaped hole 393 through a bolt, and therefore the pressing force of the tension wheel 344 on the synchronous belt 343 is adjusted.

An axial fixing component 35 is further included, the axial fixing component 35 axially fixes the upper pressure plate 32 on the output end of the first air cylinder 40, and the axial fixing component 35 includes a linear bearing 351, a connecting shaft 352 and a clamping plate 353. Linear bearing 351 is fixedly arranged on first sliding plate 38, connecting shaft 352 is rotatably arranged in linear bearing 351, upper pressure plate 32 is rotatably arranged on connecting shaft 352, connecting shaft 352 and the output end of first air cylinder 40 are fixedly arranged together through clamping plate 353, and when the output end of first air cylinder 40 stretches out and draws back, connecting shaft 352 and upper pressure plate 32 can be driven to move together.

Through connecting axle 352, splint 353 and linear bearing 351's connected mode, improved the transmission stability that pressure disk 32 was gone up in first cylinder 40 drive, avoided appearing going up pressure disk 32 and appear the side direction and rock and lead to the polishing effect to reduce.

Lower pressure disk 30 on fixture 3 is two, goes up pressure disk 32, first cylinder 40 and first motor 31 one-to-one and goes up pressure disk 32, therefore fixture 3 can two work pieces of centre gripping simultaneously to two work pieces are independent each other, and each other does not interfere with, can go on unloading or polishing to arbitrary work piece alone.

When a worker loads and unloads materials between one upper pressing plate 32 and one lower pressing plate 30, the polishing mechanism 2 can polish workpieces between the other upper pressing plate 32 and the other lower pressing plate 30, so that stagnation of polishing and machining is avoided, and the machining efficiency is improved.

The feeding mechanism 4 is arranged between the polishing mechanism 2 and the clamping mechanism 3, and the feeding mechanism 4 can drive the clamping mechanism 3 to move so that the polishing mechanism 2 polishes workpieces.

The feeding mechanism 4 comprises a first sliding table 41 which is vertically arranged on the rack 1, a second motor 43 is in transmission connection with the first sliding table 41, the second motor 43 can drive the first sliding table 41 to vertically slide on the rack 1, a grinding tool of the polishing mechanism 2 can polish in the axial direction of the workpiece, and the whole side face of the workpiece is polished by the grinding tool through the rotation of the workpiece.

The rack 1 is fixedly provided with a vertical rack 46, the second motor 43 is fixedly arranged on the first sliding table 41, the output end of the second motor 43 is fixedly provided with a gear 47, the gear 47 is meshed with the rack 46, and the second motor 43 drives the first sliding table 41 to vertically slide on the rack 1 through the gear 47 and the rack 46.

The first sliding table 41 is provided with a second sliding table 42 which slides transversely, the second sliding table 42 is connected with a third motor 44 in a transmission manner, and the third motor 44 can drive the second sliding table 42 to slide transversely on the first sliding table 41, so that the grinding tool of the polishing mechanism 2 is abutted against the side surface of the workpiece or is far away from the workpiece.

A ball screw 48 is arranged between the first sliding table 41 and the second sliding table 42, the third motor 44 is fixedly arranged on the first sliding table 41, the third motor 44 is in transmission connection with the second sliding table 42 through the ball screw 48, and the third motor 44 drives the second sliding table 42 to transversely slide on the first sliding table 41 through the ball screw 48.

A cam divider 49 is fixedly arranged on the second sliding table 42, a fourth motor 45 is fixedly arranged on an input end of the cam divider 49, an output end of the cam divider 49 is arranged on the bracket, an output end of the cam divider 49 is specifically fixedly arranged on the sliding rail 33, and the fourth motor 45 drives the sliding rail 33 to rotate in the vertical direction through the cam divider 49.

The distance between the first sliding plate 38 and the second sliding plate 39 can be adjusted by the first screw rod 36 and the second screw rod 37, so that the workpieces clamped between the upper pressure plate 32 and the lower pressure plate 30 are distributed on the slide rail 33 along the circumferential direction of the output end of the cam divider 49, and the workpieces on the clamping mechanism 3 can be kept at the correct machining position or loading and unloading position after the cam divider 49 rotates.

Adopt cam wheel splitter 49 to realize polishing mechanism 2 to the position of the last different work pieces of fixture 3, structural design is reasonable, has made things convenient for go up unloading and polishing processing simultaneously on fixture 3 to cam wheel splitter 49 can get back to initial position after rotating the round, avoids appearing the idle stroke, and consequently this burnishing machine has high efficiency, advantage that degree of automation is high.

The frame 1 is provided with a counterweight mechanism 5 connected to the first sliding table 41, the counterweight mechanism 5 is used for balancing part of the load on the first sliding table 41, so that the power and the torque required by the second motor 43 for driving the first sliding table 41 are reduced, the second motor 43 can adopt a motor with small torque and small power, and the equipment cost and the energy are saved.

Counterweight mechanism 5 is including rotating sprocket 51 that sets up in frame 1, sprocket 51 rotates and sets up in frame 1, the meshing has chain 52 on sprocket 51, the one end of chain 52 is connected on first slip table 41, the other end of chain 52 is connected with balancing weight 53, balancing weight 53 sets up the vertical slip in frame 1, sprocket 51 is located the top of first slip table 41 and balancing weight 53, when the vertical slip of first slip table 41 of second motor 43 drive, first slip table 41 drives balancing weight 53 through chain 52 and moves the vertical slip of opposite direction.

The weight 53 can balance the load on the first sliding table 41 by increasing or decreasing the number of the weight 53, thereby improving the application range of the device.

The chain wheels 51 are arranged above the first sliding table 41 and the counterweight block 53, the length direction of a part of the chain 52 between the chain wheels 51 and the first sliding table 41 is kept vertical, the length of a part of the chain 52 between the chain wheels 51 and the counterweight block 53 is also kept vertical, and the transmission stability and the transmission efficiency are further improved.

The polishing mechanism 2 is used for polishing workpieces, the polishing mechanism 2 comprises a base 21, a grinding tool for polishing the workpieces is arranged on the base 21, the base 21 is arranged on the rack 1 in a sliding mode, the base 21 can transversely slide on the rack 1, and the base 21 can slide towards the workpieces on the clamping mechanism 3 or keep away from the workpieces on the clamping mechanism 3. A second air cylinder 24 is fixedly arranged on the frame 1, the telescopic direction of the output end of the second air cylinder 24 is consistent with the sliding direction of the base 21, the output end of the second air cylinder 24 is connected to the base 21 through a spring 23, and the second air cylinder 24 can press a grinding tool on a workpiece through the spring 23.

When the grinding tool is used for polishing the side surface of the workpiece, the grinding tool is fully contacted with the side surface of the workpiece under the action of the spring 23, the contact area is increased, and when the grinding tool moves on the workpiece, due to the fact that the thicknesses of different positions are inconsistent, the spring 23 can elastically deform, so that the grinding tool can properly retreat or advance, the flexibility of the polishing mechanism 2 is improved, the stability and the uniformity of acting force during polishing are guaranteed, and the problems that the grinding tool is excessively worn and the polishing quality of the workpiece is reduced are avoided.

A loop bar 27 is fixedly arranged on the base 21, the spring 23 is sleeved on the loop bar 27, the loop bar 27 is slidably connected to the output end of the second cylinder 24, and two ends of the spring 23 are respectively abutted to the output ends of the base 21 and the second cylinder 24.

The grinding tool can be an abrasive belt 264, a cloth wheel 28 or a cotton wheel 29, any clamping mechanism 3 corresponds to three polishing mechanisms 2, the three polishing mechanisms 2 are sequentially arranged on the rack 1 from top to bottom, the grinding tools of the three polishing mechanisms 2 from top to bottom are the abrasive belt 264, the cotton wheel 29 and the cloth wheel 28 respectively, and the abrasive belt 264, the cotton wheel 29 and the cloth wheel 28 can perform rough polishing, fine polishing and mirror surface polishing on the surface of a workpiece respectively, so that the surface polishing of the workpiece can be completed on the polishing machine at one time, and the production efficiency is improved.

When the grinding tool is a cloth wheel 28 or a cotton wheel 29, the axial direction of the cloth wheel 28 or the cotton wheel 29 is the same as the axial direction of the workpiece, a fifth motor 22 is arranged on the base 21, the fifth motor 22 is connected to the cloth wheel 28 or the cotton wheel 29 through a second transmission assembly 26, the second transmission assembly 26 comprises a second driving wheel 261, a second driven wheel 262 and a belt 264, the second driving wheel 261 is fixedly arranged at the output end of the fifth motor 22, the second driven wheel 262 is rotatably arranged on the base 21, the second driving wheel 261 and the second driven wheel 262 are connected together through the belt 264, the cloth wheel 28 or the cotton wheel 29 is fixedly arranged on the second driven wheel 262, and thus the cloth wheel 28 or the cotton wheel 29 can be driven by the fifth motor 22 to rotate. When the cloth wheel 28 or the cotton wheel 29 contacts the workpiece, impact is generated, and the belt 264 has elasticity and can play a role in buffering and damping vibration.

When the grinding tool is the abrasive belt 264, the axial direction of the abrasive belt 264 is consistent with the axial direction of the workpiece, the base 21 is provided with the fifth motor 22, the abrasive belt 264, the second driving wheel 261 and the second driven wheel 262 form the second transmission assembly 26, the fifth motor 22 drives the abrasive belt 264 to rotate through the second transmission assembly 26, the second driving wheel 261 is fixedly arranged at the output end of the fifth motor 22, the second driven wheel 262 is rotatably arranged on the base 21, and the second driving wheel 261 and the second driven wheel 262 are connected together through the abrasive belt 264, so that the fifth motor 22 can drive the abrasive belt 264 to rotate.

The base 21 is provided with a third threaded hole 212, the third threaded hole 212 is in threaded connection with a third screw 25, the third screw 25 is oriented to the second driven wheel 262 in the length direction, the third screw 25 is rotatably arranged on the fifth motor 22, the third screw 25 is axially fixed on the fifth motor 22, and the third screw 25 can drive the fifth motor 22 to slide on the base 21, so that the distance between the second driving wheel 261 and the second driven wheel 262 is adjusted, and the tightness of the abrasive belt 264 or the belt 264 is adjusted.

The outer end of the third screw rod 25 is fixedly provided with a third hand wheel 251, and a worker can rotate the third screw rod 25 by hands through the third hand wheel 251, so that the adjustment is further facilitated.

First bar hole 211 has been seted up on base 21, and the length direction of first bar hole 211 and third screw 25 are unanimous, and first bar hole 211 is worn to locate by fifth motor 22's output, and fifth motor 22 can slide along the length direction of first bar hole 211, and fifth motor 22's output is injectd in first bar hole 211 and is slided to the slip stroke of fifth motor 22 on base 21 has been injectd.

Between fifth motor 22 and base 21, between balancing weight 53 and the frame 1, between first slip table 41 and the frame 1, all can realize the rectilinear slide through linear guide between second slip table 42 and the first slip table 41, improve the precision, linearity and the stability of slip direction.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A polishing machine, comprising:

a frame (1);

the clamping mechanism (3) comprises a support, a rotatable lower pressing plate (30) is arranged on the support, a first motor (31) is in transmission connection with the lower pressing plate (30), a first air cylinder (40) is arranged on the support, a rotatable upper pressing plate (32) is arranged at the output end of the first air cylinder (40), and the first motor (31) can drive a workpiece clamped between the upper pressing plate (32) and the lower pressing plate (30) to rotate;

a polishing mechanism (2) including a grinding tool for polishing a workpiece;

a feeding mechanism (4) is arranged between the polishing mechanism (2) and the clamping mechanism (3), and the feeding mechanism (4) can drive the clamping mechanism (3) to move so as to enable the grinding tool to polish the workpiece;

the feeding mechanism (4) comprises a first sliding table (41) which is vertically arranged on the rack (1) and slides, a second motor (43) is in transmission connection with the first sliding table (41), a second sliding table (42) which slides transversely is arranged on the first sliding table (41), a third motor (44) is in transmission connection with the second sliding table (42), a cam divider (49) is fixedly arranged on the second sliding table (42), a fourth motor (45) is connected with the input end of the cam divider (49), the output end of the cam divider (49) is fixedly arranged on the bracket, and the fourth motor (45) can drive the bracket to rotate through the cam divider (49);

the number of the lower pressing plates (30) is at least two, the upper pressing plates (32), the first air cylinders (40) and the first motors (31) correspond to the upper pressing plates (32) one by one, and workpieces clamped between the upper pressing plates (32) and the lower pressing plates (30) can be distributed on the support along the circumferential direction of the output end of the cam divider (49).

2. A polishing machine according to claim 1, characterized in that the bracket comprises a slide rail (33), the output end of the cam divider (49) is fixedly arranged on the slide rail (33), the slide rail (33) is respectively provided with a first slide plate (38) and a second slide plate (39) in a sliding manner, the first cylinder (40) is fixedly arranged on the first slide plate (38), the slide rail (33) is rotatably provided with a first screw (36), the first slide plate (38) is provided with a first threaded hole (381), the first screw (36) is in threaded connection with the first threaded hole (381), the first screw (36) can drive the first slide plate (38) to slide on the lower platen (30), the lower platen (30) is rotatably arranged on the second slide plate (39), the first motor (31) is fixedly arranged on the second slide plate (39), the slide rail (33) is rotatably provided with a second screw (37), a second threaded hole (391) is formed in the second sliding plate (39), a second screw rod (37) is in threaded connection with the second threaded hole (391), and the second sliding plate (39) can be driven by the second screw rod (37) to slide on the upper pressing plate (32).

3. A polishing machine according to claim 2, characterized in that the slide rail (33) is a dovetail slide rail, the first slide plate (38) and the second slide plate (39) are respectively provided with a first dovetail groove (382) and a second dovetail groove (392), and the first dovetail groove (382) and the second dovetail groove (392) are respectively adapted to the slide rail (33).

4. A polishing machine according to claim 1, characterized in that a vertical rack (46) is fixedly arranged on the frame (1), the second motor (43) is fixedly arranged on the first sliding table (41), a gear (47) is fixedly arranged on the output end of the second motor (43), and the gear (47) is engaged on the rack (46).

5. The polishing machine according to claim 1, wherein a ball screw (48) is arranged between the first sliding table (41) and the second sliding table (42), the third motor (44) is fixedly arranged on the first sliding table (41), and the third motor (44) is in transmission connection with the second sliding table (42) through the ball screw (48).

6. A polishing machine according to claim 1, characterized in that the grinding tool is a sanding belt (264) or a cloth wheel (28) or a cotton wheel (29).

7. A polishing machine according to claim 6, characterized in that when the grinding tool is a cloth wheel (28) or a cotton wheel (29), a second motor (43) is arranged on the base (21), a second driving wheel (261) is fixedly arranged on the output end of the second motor (43), a second driven wheel (262) is rotatably arranged on the base (21), the second driving wheel (261) and the second driven wheel (262) are connected together through a belt (263), and the grinding tool is fixedly arranged on the second driven wheel (262); when the grinding tool is an abrasive belt (264), a second motor (43) is arranged on the base (21), a second driving wheel (261) is arranged at the output end of the second motor (43), a second driven wheel (262) is rotatably arranged on the base (21), and the second driving wheel (261) and the second driven wheel (262) are connected together through the grinding tool.

8. A polishing machine according to claim 6 or 7, characterized in that the number of the polishing mechanisms (2) is at least three, wherein the abrasive tools of the three polishing mechanisms (2) are an abrasive belt (264), a cloth wheel (28) and a cotton wheel (29).

9. A polishing machine according to claim 1, characterized in that the frame (1) is provided with a counterweight mechanism (5) connected to the first sliding table (41), and the counterweight mechanism (5) is used for balancing part of the load on the first sliding table (41).

10. A polishing machine according to claim 1, characterized in that the polishing mechanism (2) comprises a base (21), the base (21) is slidably arranged on the frame (1), a second cylinder (24) is fixedly arranged on the frame (1), a spring (23) is arranged between the output end of the second cylinder (24) and the base (21), a grinding tool for polishing the workpiece is arranged on the base (21), and the second cylinder (24) can press the grinding tool against the workpiece through the spring (23).