CN107052955B

CN107052955B - Polishing machine

Info

Publication number: CN107052955B
Application number: CN201710029194.1A
Authority: CN
Inventors: 张春国; 刘荣伟; 宋威振; 王琦涛; 雷贝贝; 毕研贞
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2017-01-16
Filing date: 2017-01-16
Publication date: 2023-03-10
Anticipated expiration: 2037-01-16
Also published as: CN107052955A

Abstract

The invention discloses a polishing machine which comprises an adjusting platform, a polishing device, a test piece fixing device and a test piece pressing device, wherein the polishing device comprises a polishing head, a polishing head and a polishing head; the adjusting platform comprises an XY-axis moving platform and a height adjusting platform, the polishing device comprises a polishing box body, a central shaft, a planet shaft, a rotating support and a T-shaped support, abrasive paper with different specifications can be arranged on a conveying belt of each support, the polishing precision is required in the polishing process, the required abrasive paper can be selected only by rotating the central shaft, a test piece fixing device comprises a clamping cylinder, an expansion cylinder and a transmission device, the transmission device comprises an L-shaped transmission rod, a connecting rod, an eccentric runner, a stepping motor, a sleeve and a runner box body, the contact part of the test piece and the abrasive paper can be adjusted at will through the XY-axis moving platform, the test piece fixing device can adapt to test pieces with different sizes through the height adjusting platform, the eccentric runner is driven by the stepping motor to perform semi-circular motion, the test piece clamping device is driven to perform reciprocating motion back and forth, and back uniformity of the test piece polishing part is improved.

Description

Polishing machine

Technical Field

The invention belongs to the technical field of metal polishing and burnishing, and particularly relates to a polishing machine.

Background

Most of the existing grinding and polishing devices can only have one function of grinding or polishing, most of the grinding devices can only carry out rough grinding, and the devices also require manual operation and need to hold a test piece all the time, so that a plurality of defects are caused in the grinding and polishing process, such as: the required time is long; grinding and polishing need to replace equipment; the quality of the test piece after grinding and polishing is not easy to control.

The prior automatic polishing machine has a small application range, can not polish irregular test pieces and can not only polish local areas, and although the sand paper with different roughness does not need to be manually replaced, the replacing device has a simple structure, the sand paper is not fixed stably, and the utilization rate of the sand paper is low.

Most of the existing polishing machines can only be provided with one specification of abrasive paper, the abrasive paper needs to be continuously replaced in order to achieve polishing precision in the polishing process, the operation is complex, most of the existing polishing machines can not be adjusted through a test piece fixing device and a polishing device, and the size and the specification of a test piece which can be polished are greatly limited.

Disclosure of Invention

In order to solve the defects of the prior art, the invention provides a method which is realized by the following technical scheme:

a polishing device comprises a polishing box body, a central shaft, a plurality of planet shafts, a rotating bracket, a supporting disc and a plurality of T-shaped brackets;

a circular opening is arranged on one side wall of the polishing box body, one end of a central shaft is connected with the side wall of the polishing box body through a bearing, the other end of the central shaft passes through the circular opening, a rotating bracket and a supporting disc are fixedly arranged on the part of the central shaft in the polishing box body, and the supporting disc is arranged at the circular opening on the polishing box body;

the rotary support comprises a group of mounting rods, the mounting rods are uniformly arranged on the rotary support in a circumferential shape, each mounting rod is fixedly connected with a bearing, a bearing is also fixedly arranged at a position of the supporting disc corresponding to the bearing on each mounting rod, and a connecting line of the two bearings is parallel to the central shaft; a T-shaped bracket is fixed on the outer ring of each bearing of the mounting rod and the corresponding bearing of the supporting disc; a planet shaft is arranged on the inner ring of the bearing of each mounting rod and the bearing of the corresponding supporting disc, a conveyor belt is arranged between each T-shaped support and the corresponding planet shaft, and a working surface is formed at the contact position of the T-shaped support and the conveyor belt; the bearing on the supporting disk is not contacted with the periphery of the circular opening,

a switch door is arranged on one side wall corresponding to the central shaft on the polishing box body, a strip-shaped opening is arranged on the upper surface of the polishing box body, and the working surface of the T-shaped support can be arranged outside the polishing box body through the strip-shaped opening;

the number of the mounting rods on the rotary support can be 6, the 6 mounting rods are uniformly arranged, and every two adjacent mounting rods are oppositely separated by 60 degrees by a central shaft; two edges of the T-shaped support, which are in contact with the conveying belt, are respectively provided with a roller; the lower part of the polishing box body is provided with a stretchable drawer, and a handle is arranged on the drawer.

A polishing machine provided with the polishing device comprises a main box body, an adjusting platform, a test piece fixing device, a polishing driving device and a test piece pressing device, wherein the adjusting platform is arranged on the main box body;

the adjusting platform comprises an XY-axis moving platform and a height adjusting platform, the height adjusting platform is installed on a bottom plate of the main box body, and the XY-axis moving platform is installed on the height adjusting platform;

the polishing device is arranged on the XY axis moving platform;

the polishing driving device comprises a motor installation box body, the lower half part of the motor installation box body is fixedly connected with the polishing box body, the upper half part of the motor installation box body is provided with an opening, the side wall of the upper half part of the motor installation box body is provided with a motor, one end of each planet shaft, which is close to the supporting disc, is provided with a transmission block, the transmission block is provided with a pin hole, an output shaft of the motor is detachably connected with the transmission block through a pin, one end of a central shaft is arranged on the side wall of the polishing box body, the other end of the central shaft sequentially penetrates through the circular opening in the polishing box body and the side wall of the motor installation box body to be arranged outside the motor installation box body, and the central shaft is connected with the side wall, which is contacted with the polishing box body and the motor installation box body, through a bearing;

the test piece fixing device is arranged right above the polishing device and comprises a clamping cylinder, a telescopic cylinder and a transmission device, the clamping cylinder is used for fixing a test piece, and the transmission device is connected with the clamping cylinder and drives the clamping cylinder to do linear reciprocating motion;

the pressing device is arranged right above the test piece fixing device and used for adjusting the test piece fixing device to move up and down.

The clamping cylinder is hollow cylindrical, a rectangular opening is formed in the side wall of the middle section of the hollow cylindrical along the central axis, a spring is mounted inside each of two ends of the hollow cylindrical cylinder, and two claw clamping hands are mounted on the springs.

The transmission device comprises an L-shaped transmission rod, a connecting rod, an eccentric rotating wheel, a stepping motor, a sleeve and a rotating wheel box body, wherein the rotating wheel box body is arranged on a main box body, the stepping motor is arranged on the top surface in the rotating wheel box body, the eccentric rotating wheel is arranged on an output shaft of the stepping motor, a sliding groove is formed in the eccentric rotating wheel along the radius direction, a plurality of positioning through holes are uniformly formed in the sliding groove, a thread is arranged at one end of the L-shaped transmission rod, provided with the thread, penetrates through the positioning through hole in the sliding groove and is connected with the sliding groove through a nut, and a positioning block is arranged at the position, in contact with the lower surface of the eccentric rotating wheel, of the L-shaped transmission rod;

an opening and closing door is arranged on the side wall of the rotating wheel box body corresponding to the position of the eccentric rotating wheel;

the side wall of the runner box body is provided with a hole, one end of the connecting rod, which penetrates through the hole, is hinged with the L-shaped transmission rod in the runner box body, the other end of the connecting rod is connected with the clamping cylinder, a sleeve is fixed on the outer side wall of the position, which is provided with the hole, of the runner box body, and the connecting rod penetrates through the sleeve and is not contacted with the inner wall of the sleeve;

the one end that the connecting rod was kept away from to the centre gripping section of thick bamboo link to each other with the one end on the telescopic cylinder, the telescopic cylinder other end install on the lateral wall of main tank body, the lateral wall of telescopic cylinder adopt scalable material, install the spring in the telescopic cylinder.

A centre gripping section of thick bamboo one end link to each other with the connecting rod, the other end links to each other with a section of thick bamboo that stretches out and draws back, its connected mode is: the connecting device is characterized in that connecting grooves are formed in two ends of the clamping cylinder, a through long round hole is formed in two sides of each connecting groove, a connecting plate is arranged at one end, close to the clamping cylinder, of each connecting rod and the telescopic cylinder, long round holes are formed in the connecting plates, the connecting plates at one ends of the connecting rods are arranged in the connecting grooves of the clamping cylinder, and the two ends of the clamping cylinder are connected with the connecting rods and the telescopic cylinder respectively through long round holes formed in the clamping cylinder and the connecting plates, which are penetrated through pins.

The pressing device comprises a screw rod fixing rod, a pressing block and a third screw rod, the screw rod fixing rod is arranged right above the telescopic cylinder, one end of the screw rod fixing rod is fixed on the side wall of the main box body, the screw rod fixing rod is provided with a threaded hole, the third screw rod penetrates through the threaded hole, the pressing block is installed at the lower end of the third screw rod, and a hand wheel is installed at the upper end of the third screw rod.

The height adjusting platform comprises hydraulic cylinders, the hydraulic cylinders are arranged in the height adjusting platform, the lower ends of the hydraulic cylinders are installed on the bottom plate, the number of the hydraulic cylinders can be four, and the four hydraulic cylinders are evenly arranged in the height adjusting platform.

The XY-axis moving platform comprises an X-axis moving platform and a Y-axis moving platform; the X-axis moving platform comprises an X-axis guide rail and a first lead screw, wherein the first lead screw is arranged on the central axis of the X-axis guide rail, a rotating hand wheel is arranged on the first lead screw, the Y-axis moving platform comprises a Y-axis guide rail and a second lead screw, the second lead screw is arranged on the central axis of the Y-axis guide rail, and a rotating hand wheel is arranged on the second lead screw.

The pressing block is a cuboid, a semi-cylindrical groove is formed in the side face, in contact with the clamping cylinder, of the cuboid, and the clamping cylinder can be embedded in the semi-cylindrical groove.

Compared with the prior art, the technical scheme has the following technical effects:

1. according to the polishing machine provided by the invention, the plurality of T-shaped supports are uniformly arranged on the polishing device, the abrasive paper with different specifications can be arranged on the conveying belt of each support, the required abrasive paper can be selected only by rotating the central shaft in order to achieve the required polishing precision in the polishing process, the abrasive paper does not need to be frequently replaced, and the working efficiency is improved.

2. The polishing machine provided by the invention discloses the height adjusting platform and the XY-axis moving platform, in the polishing process, according to the sizes of different test pieces, the contact part of the test piece and the abrasive paper can be randomly adjusted through the XY-axis moving platform, and the height adjusting platform can adapt to the test pieces with different sizes, so that the application range of the polishing machine disclosed by the invention is wider.

3. The polishing machine provided by the invention is provided with the transmission device, the eccentric rotating wheel is driven to do semi-circular motion through the stepping motor, and the test piece clamping device is further driven to do reciprocating motion back and forth, so that the uniformity of a polished part of the test piece is improved, the polishing precision is higher, manual operation is not needed in the process, and the automation degree is greatly improved.

Drawings

FIG. 1 is an elevational view of the overall construction of the present invention;

FIG. 2 is a oblique perspective view of the present invention;

FIG. 3 is a schematic view of an XY conditioning stage of the present invention;

FIG. 4 is a schematic view of the interior of the polishing apparatus of the present invention;

FIG. 5 is a schematic view of the conveyor belt position configuration of the present invention;

FIG. 6 is a schematic view of the internal structure of the overall structure of the present invention;

FIG. 7 is a schematic view of the contact between the compression device and the clamping cylinder of the present invention;

FIG. 8 is a schematic view of the connection of the drive block of the present invention to the output shaft of the motor;

FIG. 9 is a schematic view of the transmission of the present invention;

FIG. 10 is a schematic view of the drive hand wheel of the present invention;

FIG. 11 is a schematic view of the configuration of the polishing apparatus of the present invention;

FIG. 12 is a schematic view of a T-shaped stent of the present invention;

FIG. 13 is a schematic view of the configuration of the oblong holes in the clamping cylinder of the present invention;

FIG. 14 is a schematic view of the connection of the cartridge to the connecting rod of the present invention;

the meaning of each reference number in the figures is: 1-a main box body, 2-a height adjusting platform, 3-an X-axis guide rail, 4-a Y-axis guide rail, 5-a motor installation box body, 6-a clamping cylinder, 7-a telescopic cylinder, 8-a two-jaw clamping hand, 9-a connecting rod, 10-a rotating wheel box body, 11-a pressing block, 12-a third screw rod, 13-a screw rod fixing rod, 14-a first screw rod, 15-a second screw rod, 16-a central shaft, 17-a supporting disc, 18-an installation rod, 19-a rotating bracket, 20-a transmission block, 21-a T-shaped bracket, 22-a rolling shaft, 23-a transmission belt, 24-a planetary shaft, 25-a sleeve, 26-an L-shaped transmission rod, 27-a stepping motor, 28-an eccentric rotating wheel, 29-a long circular hole, 30-a hydraulic cylinder, 31-a connecting plate, 32-a polishing box body, 33-a positioning block, 34-a positioning through hole, 35-a sliding groove, 36-a switch door, 37-a drawer, 38-a switch door, 39-an opening and 40-a strip-shaped opening.

Detailed Description

Example 1

The embodiment provides a polishing device, as shown in fig. 11 and 4, the polishing device comprises a polishing box body 32, a central shaft 16, a plurality of planet shafts 20, a rotating bracket 19, a supporting disc 17 and a plurality of T-shaped brackets 21, wherein one side wall of the polishing box body 32 is provided with a circular opening, one end of the central shaft 16 is connected with the side wall of the polishing box body 32 through a bearing, the other end of the central shaft passes through the circular opening, a rotating bracket 9 and the supporting disc 17 are fixedly installed on the part of the central shaft 16 positioned in the polishing box body 32, and the supporting disc 17 is arranged at the circular opening on the polishing box body 32;

the rotating bracket 9 comprises a group of mounting rods 18, the mounting rods 18 are uniformly arranged on the rotating bracket 19 in a circumferential shape, each mounting rod 18 is fixedly connected with a bearing, a bearing is also fixedly arranged at the position of the supporting disc 17 corresponding to the bearing on each mounting rod 18, and the connecting line of the two bearings is parallel to the central shaft 16; a T-shaped bracket 21 is fixed on the outer ring of each bearing of the mounting rod and the corresponding bearing of the supporting disk 17; a planet shaft 24 is arranged on the inner ring of the bearing of each mounting rod 18 and the bearing of the corresponding supporting disc 17, as shown in fig. 5, a conveyor belt 23 is arranged between each T-shaped support 21 and the corresponding planet shaft, and the contact part of the T-shaped support 21 and the conveyor belt 23 forms a working surface; the bearing on the supporting disk 17 is not contacted with the periphery of the circular opening;

a conveyor belt 23 is arranged between each T-shaped support 21 and the corresponding planet shaft 24, in order to ensure that the friction force between the conveyor belt 23 and the planet shaft 24 is proper, the conveyor belt 23 can make circular motion along with the planet shaft 24, and required plastic protruding particles can be uniformly arranged on the partial surface of the contact part of the planet shaft 24 and the conveyor belt 23, so that the friction between the conveyor belt 23 and the planet shaft 24 can be increased, meanwhile, the tightness of the conveyor belt 23 can be properly adjusted, and the conveyor belt 23 and the planet shaft 24 can be ensured to rotate together.

As shown in fig. 4, preferably, a set of the mounting rods (18) on the rotating bracket (19) of the present embodiment can be arranged in 6, and the 6 mounting rods (18) are uniformly arranged, and every two adjacent mounting rods (18) are relatively separated by 60 ° from the central axis (16).

In the embodiment, 6 mounting rods 18 can be arranged on the group of the rotating supports 19, the 6 mounting rods 18 are uniformly arranged, every two adjacent mounting rods 18 are separated by 60 degrees relative to the central shaft 16, according to the requirement of polishing precision of most test pieces, 5-6 levels of polishing are generally needed to achieve, therefore, 6T-shaped supports 21 are uniformly arranged in the embodiment, a conveyor belt 23 is arranged between each T-shaped support 21 and the corresponding planet shaft 24, and sand paper with different roughness is arranged on each conveyor belt, so that the 5-6 levels of polishing requirements can be met.

Two edges of the T-shaped support 21, which are in contact with the conveying belt, are respectively provided with a roller; as shown in fig. 12, two edges of the t-shaped bracket 21 contacting the conveyor belt are provided with two circular grooves, wherein the arc length of the circular grooves is greater than that of a semicircle, so that the roller 22 passes through the circular grooves and does not fall off, and the hand wheel on the central shaft 16 can be rotated according to different finishing accuracies during finishing.

A switch door (36) is arranged on one side wall corresponding to the central shaft on the polishing box body 32, and the sand paper can be conveniently replaced by arranging the switch door 36.

The upper surface of the polishing housing 32 is provided with a strip-shaped opening 40, and the working surface of the T-shaped bracket 21 can be arranged outside the polishing housing 32 through the strip-shaped opening 40.

The lower part of polishing the box is equipped with one and can tensile drawer 37, installs the handle on the drawer 37, sets up the iron fillings etc. that the drawer can collect and polish the process production, convenient clearance.

Example 2

On the basis of embodiment 1, the present embodiment provides a polishing machine, as shown in fig. 1 and 2, including a main box 1, further including an adjusting platform, a test piece fixing device, a polishing driving device, and a test piece pressing device;

the adjusting platform is arranged on the bottom surface of the main box body and comprises an XY-axis moving platform and a height adjusting platform 2, and the height adjusting platform 2 is arranged on a bottom plate of the main box body.

In the polishing process, according to the different needs of polishing the test piece, can realize through XY axle regulation platform that polishing device carries out position control in the horizontal plane, simultaneously in order to satisfy the test piece of equidimension not, can adjust polishing device's height degree through height adjustment platform 2.

As shown in fig. 2 and 6, polish drive arrangement and include motor installation box 5, the latter half of motor installation box 5 with polish box fixed connection, its first half is equipped with the opening, the motor is installed to its first half lateral wall, as shown in fig. 8, the one end that every planet axle 24 is close to support disc 17 is equipped with drive block 20, be equipped with the pinhole on the drive block 20, the output shaft and the drive block 20 of motor can be dismantled through the round pin and be connected, center pin 16 one end sets up on polishing box 32's lateral wall, the other end passes in proper order polishes box 32 and goes up circular opening and motor installation box 5's lateral wall and sets up outside motor installation box 5, all be connected through the bearing between center pin 16 and the lateral wall of polishing box 32 and the contact of motor installation box 5, the one end that center pin 5 is close to outside motor installation box 5 is equipped with the hand wheel, conveniently adjust the center pin and rotate.

As shown in fig. 8, the driving block 20 is connected to the output shaft of the motor through the detachable pin via the pin hole on the driving block 20 of the planet shaft 24, the motor can drive the corresponding planet shaft 24 to rotate to realize the polishing process, and the relative fixation of the polishing device can be realized via the connection of the pin and the output shaft of the motor.

The center pin 5 sets up in the geometric centre position of polishing the box 32, is located Y axle movable guide 4 axis directly over, and its one end passes through the bearing with the lateral wall of polishing the box 32 and connects, and the other end passes in proper order and polishes two lateral walls in front and back of circular open-ended center and motor installation box 5 on the box 32, and also through the bearing connection between two lateral walls of motor installation box 5, through bearing connection guarantee when the center pin is rotatory with polish box and motor installation box 5 relative motion.

As shown in fig. 6, the test piece fixing device is arranged right above the polishing device, the test piece fixing device comprises a clamping cylinder 6, a telescopic cylinder 7 and a transmission device, the clamping cylinder 6 is used for fixing the test piece, and the transmission device is connected with the clamping cylinder 6 and drives the clamping cylinder 6 to do linear reciprocating motion; the eccentric runner is driven to move in a semi-circle mode through the stepping motor, and then the test piece clamping device is driven to reciprocate back and forth, so that the uniformity of a test piece polishing part is improved, the polishing precision is higher, manual operation is not needed in the process, and the automation degree is greatly improved.

As shown in fig. 6, the pressing device is disposed right above the specimen fixing device to regulate the specimen fixing device to move up and down. The contact tightness between the clamping cylinder 6 and the test piece can be controlled by adjusting the height of the pressing block 11, so that the pressure intensity of the contact surface between the abrasive paper and the test piece is controlled, and the requirement of controlling the polishing precision is met.

Example 3

On the basis of embodiment 2, as shown in fig. 7 and 13, the clamping cylinder 6 of this embodiment is a hollow cylinder, the side wall of the middle section of the hollow cylinder is provided with a rectangular opening along the central axis, two springs are respectively installed inside two ends of the hollow cylinder, two clamping jaws 8 are installed on the springs, the springs are installed at two ends of the clamping cylinder 6, and the two clamping jaws 8 can move within a certain range due to the flexibility of the springs, so that different sizes of test pieces can be met.

Example 4

On the basis of the embodiment 2, as shown in fig. 6, the transmission device of the embodiment includes an L-shaped transmission rod 26, a connecting rod 9, an eccentric rotating wheel 28, a stepping motor 27, a sleeve 25 and a rotating wheel box 10, the rotating wheel box is disposed on the main box 1, the stepping motor 27 is mounted on the top surface in the rotating wheel box, the eccentric rotating wheel 28 is mounted on the output shaft of the stepping motor 27, as shown in fig. 9 and 10, a sliding slot 35 is disposed on the eccentric rotating wheel 28 along the radial direction, a plurality of positioning through holes 34 are uniformly disposed on the sliding slot 35, one end of the L-shaped transmission rod is provided with a thread, one end of the L-shaped transmission rod 26 provided with the thread passes through the positioning through hole 34 on the sliding slot 35 and is connected with the sliding slot 35 through a nut, and a positioning block 33 is disposed at a position where the L-shaped transmission rod 26 contacts with the lower surface of the eccentric rotating wheel 28;

as shown in fig. 1, the side wall of the wheel box 10 corresponding to the position of the eccentric wheel 28 is provided with an opening and closing door 38, so that when the movement displacement of the clamping device needs to be adjusted, the position of the L-shaped transmission rod on the chute can be adjusted through the opening and closing door;

as shown in fig. 1, a hole is formed in the side wall of the runner box body 10, one end of the connecting rod 9, which penetrates through the hole, is hinged to the L-shaped transmission rod 26 inside the runner box body 10, the other end of the connecting rod is connected to the clamping cylinder 6, a sleeve 25 is fixed on the outer side wall of the runner box body 10, which is provided with the hole, and the connecting rod 9 penetrates through the sleeve 25 and is not in contact with the inner wall of the sleeve 25;

referring to fig. 9 and 10, a sliding slot 35 is formed in the eccentric wheel 28, a plurality of positioning through holes 34 are uniformly formed in the sliding slot, one end of the L-shaped transmission rod 26 with threads can pass through the positioning through holes 34, the eccentric wheel 28 is driven by the stepping motor to run in a semi-circular manner and simultaneously drive the L-shaped transmission rod 26 to move, the L-shaped transmission rod 26 is connected with different positioning through holes 34 in the sliding slot 35, the L-shaped transmission rod 26 is driven to move in a different displacement during the movement of the eccentric wheel 28, the other end of the L-shaped transmission rod is hinged to the connecting rod, a sleeve 25 is fixed on the side wall of the wheel box 10, and the sleeve 25 can limit the left-right swing of the connecting rod 9, so that the connecting rod 9 can be driven to do linear reciprocating movement when the L-shaped transmission rod 26 runs in a semi-circular manner.

According to different areas of the test piece to be polished, the opening and closing door 38 is opened to adjust the connection of the L-shaped transmission rod 26 with different positioning through holes 34, and further, the reciprocating displacement of the clamping barrel 6 is adjusted.

Wherein, one end of the clamping cylinder 6 far away from the connecting rod 9 is connected with one end of the telescopic cylinder 7, the other end of the telescopic cylinder 7 is arranged on the side wall of the main box body 1, the side wall 7 of the telescopic cylinder is made of telescopic materials, and a spring is arranged in the telescopic cylinder 7;

example 5

On the basis of embodiment 2, as shown in fig. 13, the two ends of the clamping cylinder 6 are both provided with the oblong holes 29, a pin penetrates through the oblong holes 29 to connect the two ends of the clamping cylinder 6 with the connecting rod 9 and the telescopic cylinder 7 respectively, the oblong holes 29 can enable the pin to have certain movable displacement in the oblong holes 29, and further the height of the clamping cylinder 6 can be adjusted, one end of the telescopic cylinder 6 is fixed on the side wall of the main box body 1, and the other end of the telescopic cylinder 7 is connected with the clamping cylinder 6, on one hand, the telescopic cylinder 7 can play a role of upward pulling force on the clamping cylinder 6 to prevent the clamping cylinder 6 from working for a long time due to the drooping of one end under the action of gravity, on the other hand, the side wall of the telescopic cylinder 7 is made of a telescopic material, a spring is installed inside, and restoring force provided by the spring is helpful for the clamping cylinder 6 to reciprocate back and forth.

Example 6

On the basis of embodiment 2, as shown in fig. 7, the pressing device provided in this embodiment includes a lead screw fixing rod 13, a pressing block 11, and a third lead screw 12, where the lead screw fixing rod 13 is disposed right above the telescopic cylinder 7, one end of the lead screw fixing rod is fixed on the side wall of the main box 1, the lead screw fixing rod 13 is provided with a threaded hole, the third lead screw 12 passes through the threaded hole, the lower end of the third lead screw is provided with the pressing block 11, and the upper end of the third lead screw is provided with a hand wheel; the pressing block 11 is adjusted in height through the third screw 12, the tightness of the contact between the clamping cylinder 6 and the test piece can be controlled by adjusting the height of the pressing block 11, the pressure of the contact surface of the abrasive paper and the test piece is further controlled, and the requirement of controlling the polishing precision is met.

Example 7

As shown in fig. 3, on the basis of embodiment 2, the height adjusting platform of this embodiment includes hydraulic cylinders 30, the hydraulic cylinders 30 are disposed in the height adjusting platform, and the lower ends of the hydraulic cylinders 30 are mounted on the bottom plate, wherein the number of the hydraulic cylinders 30 can be four, the four hydraulic cylinders 30 are uniformly disposed in the height adjusting platform 2, and the hydraulic cylinders 30 provide the power for lifting the height adjusting platform.

Example 8

As shown in fig. 3, on the basis of embodiment 1, this embodiment provides an XY-axis moving platform, which includes an X-axis moving platform and a Y-axis moving platform, where the X-axis moving platform includes an X-axis guide rail 3 and a first lead screw 14, where the first lead screw 14 is disposed on a central axis of the X-axis guide rail 3, the first lead screw 14 is provided with a rotating hand wheel, and the Y-axis moving platform includes a Y-axis guide rail 4 and a second lead screw 15, where the second lead screw 15 is disposed on a central axis of the Y-axis guide rail 4, the second lead screw 15 is provided with a rotating hand wheel, the X-axis moving platform is mounted on the height adjusting platform 2, and the Y-axis moving platform is mounted on the X-axis moving platform; in polishing the in-process, according to the different needs that polish the test piece, can realize through XY axle regulation platform that polishing device carries out position adjustment in the horizontal plane, simultaneously in order to satisfy the test piece of equidimension not, can adjust polishing device's height degree through height control platform 2. The X-axis adjusting platform and the Y-axis adjusting platform are both realized through guide rails and lead screws.

Example 9

As shown in fig. 7, on the basis of embodiment 1, the pressing block 11 in this embodiment is a cuboid, a semicircular groove is formed in the side where the cuboid contacts with the clamping cylinder 6, the clamping cylinder 6 can be nested in the semicircular groove, the pressing block 11 adjusts the height through the third lead screw 12, a semicircular groove is formed in the side where the pressing block 11 contacts with the clamping cylinder 6, the clamping cylinder 6 can be better matched with the pressing block 11 in contact, the tightness between the clamping cylinder 6 and the test piece can be controlled by adjusting the height of the pressing block 11, the pressure of the contact surface between the abrasive paper and the test piece is further controlled, and the requirement of polishing precision control is met.

Claims

1. A polishing device is characterized by comprising a polishing box body (32), a central shaft (16), a plurality of planet shafts (24), a rotating bracket (19), a supporting disc (17) and a plurality of T-shaped brackets (21);

a round opening is arranged on one side wall of the polishing box body (32), one end of the central shaft (16) is connected with the side wall of the polishing box body (32) through a bearing, the other end of the central shaft passes through the round opening, a rotating bracket (19) and a supporting disc (17) are fixedly arranged on the part of the central shaft (16) positioned in the polishing box body (32), and the supporting disc (17) is arranged at the round opening on the polishing box body (32);

the rotating support (19) comprises a group of mounting rods (18), the mounting rods (18) are uniformly arranged on the rotating support (19) in a circumferential manner, each mounting rod (18) is fixedly connected with a bearing, a bearing is also fixedly arranged at the position of a supporting disc (17) corresponding to the bearing on each mounting rod (18), and the connecting line of the two bearings is parallel to the central shaft (16); a T-shaped bracket (21) is fixed on the outer ring of each bearing of the mounting rod and the corresponding bearing of the supporting disc (17); a planet shaft (24) is arranged on the inner ring of the bearing of each mounting rod (18) and the bearing of the corresponding supporting disc (17), a conveying belt (23) is arranged between each T-shaped support (21) and the corresponding planet shaft, a working surface is formed at the contact part of each T-shaped support (21) and the conveying belt (23), and sand paper with different roughness is arranged on each conveying belt (23); the bearing on the supporting disc (17) is not contacted with the periphery of the circular opening;

a switch door (36) is arranged on one side wall corresponding to the central shaft on the polishing box body (32), a strip-shaped opening (40) is arranged on the upper surface of the polishing box body (32), and the working surface of the T-shaped support (21) can be arranged outside the polishing box body (32) through the strip-shaped opening (40).

2. A finishing device as claimed in claim 1, characterized in that 6 mounting bars (18) are provided in a group of mounting bars (18) on said rotating carriage (19), and that 6 mounting bars (18) are uniformly arranged, every two adjacent mounting bars (18) being spaced 60 ° with respect to the central axis (16); two edges of the T-shaped support (21) which are contacted with the conveying belt are respectively provided with a roller; the lower part of the polishing box body is provided with a stretchable drawer (37), and a handle is arranged on the drawer (37).

3. A polishing machine equipped with a polishing apparatus according to claim 1, comprising a main case (1), characterized by further comprising an adjusting platform, a specimen fixing means, a polishing driving means and a specimen pressing means;

the adjusting platform comprises an XY-axis moving platform and a height adjusting platform (2), the height adjusting platform is installed on a bottom plate of the main box body (1), and the XY-axis moving platform is installed on the height adjusting platform (2);

the polishing device is arranged on the XY axis moving platform;

the polishing driving device comprises a motor installation box body (5), the lower half part of the motor installation box body (5) is fixedly connected with the polishing box body, the upper half part of the motor installation box body is provided with an opening, the side wall of the upper half part of the motor installation box body is provided with a motor, one end of each planet shaft (24) close to the supporting disc (17) is provided with a transmission block (20), the transmission block (20) is provided with a pin hole, an output shaft of the motor is detachably connected with the transmission block (20) through a pin, one end of a central shaft (16) is arranged on the side wall of the polishing box body (32), the other end of the central shaft sequentially penetrates through the circular opening in the polishing box body (32) and the side wall of the motor installation box body (5) to be arranged outside the motor installation box body (5), and the central shaft (16) is connected with the side wall in contact with the polishing box body (32) and the motor installation box body (5) through a bearing;

the test piece fixing device is arranged right above the polishing device and comprises a clamping cylinder (6), a telescopic cylinder (7) and a transmission device, the clamping cylinder (6) is used for fixing a test piece, and the transmission device is connected with the clamping cylinder (6) and drives the clamping cylinder (6) to do linear reciprocating motion;

4. A grinder as claimed in claim 3, characterised in that the holding cylinder (6) is hollow cylindrical, that the side walls of the middle section of the holding cylinder (6) are provided with rectangular openings along the central axis, that a spring is mounted inside each of the two ends of the holding cylinder (6), and that two pawl catches (8) are mounted on the springs.

5. The polishing machine as claimed in claim 3, characterized in that the transmission device comprises an L-shaped transmission rod (26), a connecting rod (9), an eccentric rotating wheel (28), a stepping motor (27), a sleeve (25) and a rotating wheel box body (10), wherein the rotating wheel box body is arranged on the main box body (1), the stepping motor (27) is arranged on the top surface in the rotating wheel box body, the eccentric rotating wheel (28) is arranged on the output shaft of the stepping motor (27), a sliding groove (35) is formed in the eccentric rotating wheel (28) along the radius direction, a plurality of positioning through holes (34) are uniformly formed in the sliding groove (35), one end of the L-shaped transmission rod is provided with a thread, one end of the L-shaped transmission rod (26) provided with the thread penetrates through the positioning through hole (34) in the sliding groove (35) and is connected with the sliding groove (35) through a nut, and a positioning block (33) is arranged at the position where the L-shaped transmission rod (26) is contacted with the lower surface of the eccentric rotating wheel (28);

an opening and closing door (38) is arranged on the side wall of the rotating wheel box body (10) corresponding to the position of the eccentric rotating wheel (28);

the side wall of the runner box body (10) is provided with a hole, one end of the connecting rod (9) penetrating through the hole is hinged with the L-shaped transmission rod (26) in the runner box body (10), the other end of the connecting rod is connected with the clamping barrel (6), a sleeve (25) is fixed on the outer side wall of the hole on the runner box body (10), and the connecting rod (9) penetrates through the sleeve (25) and is not in contact with the inner wall of the sleeve;

one end of the clamping cylinder (6) far away from the connecting rod (9) is connected with one end of the telescopic cylinder (7), the other end of the telescopic cylinder (7) is installed on the side wall of the main box body (1), the side wall of the telescopic cylinder (7) is made of telescopic materials, and a spring is installed in the telescopic cylinder (7).

6. A grinder as claimed in claim 5, characterised in that the holding cylinder is connected at one end to the connecting rod (9) and at the other end to the telescopic cylinder in such a way that: both ends at a clamping cylinder are provided with a connecting groove (31), both sides of the connecting groove (31) are provided with a through slotted hole (29), one end of the connecting rod and one end of the telescopic cylinder, which are close to the clamping cylinder (6), are provided with a connecting plate (39), the connecting plate at one end of the connecting rod is arranged in the connecting groove (31) of the clamping cylinder, and the two ends of the clamping cylinder (6) are respectively connected with the connecting rod (9) and the telescopic cylinder (7) by penetrating the slotted holes (29) on the clamping cylinder (6) and the connecting plate through pins.

7. The polishing machine as claimed in claim 3, characterized in that the pressing device comprises a lead screw fixing rod (13), a pressing block (11) and a third lead screw (12), wherein the lead screw fixing rod (13) is arranged right above the telescopic cylinder (7), one end of the lead screw fixing rod is fixed on the side wall of the main box body (1), the lead screw fixing rod (13) is provided with a threaded hole, the third lead screw (12) passes through the threaded hole, the pressing block (11) is arranged at the lower end of the lead screw fixing rod, and a hand wheel is arranged at the upper end of the lead screw fixing rod.

8. A grinder as claimed in claim 3 characterised in that the height adjustment platform comprises hydraulic cylinders (30), the hydraulic cylinders (30) being disposed within the height adjustment platform, the lower ends of the hydraulic cylinders (30) being mounted on the base plate, the hydraulic cylinders (30) being four, the four hydraulic cylinders (30) being disposed uniformly within the height adjustment platform.

9. The grinder of claim 3 wherein the XY axis motion stage comprises an X axis motion stage and a Y axis motion stage; the X-axis moving platform comprises an X-axis guide rail (3) and a first lead screw (14), wherein the first lead screw is arranged on a central axis of the X-axis guide rail (3), a rotating hand wheel is arranged on the first lead screw (14), the Y-axis moving platform comprises a Y-axis guide rail (4) and a second lead screw (15), the second lead screw (15) is arranged on the central axis of the Y-axis guide rail (4), and the rotating hand wheel is arranged on the second lead screw (15).

10. The polishing machine as claimed in claim 7, characterized in that the pressing block (11) is a rectangular parallelepiped, and a semicircular cylindrical groove is provided on the side of the pressing block (11) contacting the holding cylinder (6), and the holding cylinder (6) can be inserted into the semicircular cylindrical groove.