CN221020374U - Double-disc double-control automatic polishing device - Google Patents

Abstract

The utility model discloses a double-disc double-control automatic polishing device which comprises a base, working discs, a working disc rotation driving device and a polishing assembly, wherein the two groups of working discs are respectively arranged on the top surface of the base, the working discs are respectively driven to rotate through the corresponding working disc rotation driving devices, the polishing assembly is arranged on the base, the polishing assembly comprises a stand column, a rotation seat plate, a lifting driving device, a polishing head and the polishing head rotation driving assembly, the rotation seat plate is in rotary fit connection with the stand column, the lifting driving device is fixedly connected to the rotation seat plate, the polishing head is movably connected to the rotation seat plate, pneumatic pressure heads are respectively arranged above clamping positions of clamping discs, which are fixedly arranged below the polishing head, and the working disc rotation driving device is in electric signal connection with a frequency conversion servo control device. The two working discs are driven by the independent working disc rotation driving device respectively, so that the safety and the processing efficiency can be improved, and the requirement of high torque output at low rotation speed can be met.

Description

Double-disc double-control automatic polishing device

Technical Field

The utility model relates to the field of polishing equipment, in particular to a double-disc double-control automatic polishing device.

Background

Automatic grinding and polishing are essential important links in metallographic preparation, and consist of two steps of grinding and polishing. Polishing machines are a common device for achieving these two steps. The polishing function is to prepare a sample surface which is free of deformation, brightness, clearness and scratch. The grinding media is typically sandpaper (or diamond grinding disc) in combination with water, the main purpose being to grind the surface flat, removing as much of the deformation layer as possible. The polishing medium is polishing cloth combined with polishing liquid, and the main purpose is to remove micro deformation layers, scratches and the like. The automatic polishing machine is provided with a polishing head and a clamping disc, and can automatically polish single or multiple samples.

The existing automatic grinding and polishing machine with double discs is usually controlled by linkage, and can only rotate simultaneously or stop rotating simultaneously, when the automatic grinding and polishing machine is used for operation, one disc is in an idle state, energy is wasted, the idle disc rotates, potential safety hazards are easily caused, and when one disc fails, the other disc cannot be used, equipment cannot be used, and only shutdown maintenance is performed. In addition, when the existing automatic polishing machine is used for polishing at a low speed, the working disc is easy to clamp due to small torque output by the motor, so that polishing quality is influenced, and materials requiring low-speed polishing are difficult to process. Moreover, high hard alloys, ceramic samples, large-size samples, etc. are usually polished with high force, and the conventional automatic polishing machine is difficult to satisfy the polishing processing of such materials, so that improvement of the conventional automatic polishing machine is required.

Disclosure of utility model

The utility model aims to solve the problems that the existing double-disc automatic polishing device in the background technology only can rotate or stop at the same time, has energy waste and potential safety hazard, and when polishing at a low speed, a working disc is easy to clamp and stop to influence polishing quality, so that polishing can not be performed on soft metal materials needing polishing at the low speed, and polishing quality is influenced due to insufficient polishing force and insufficient polishing force on materials needing polishing at a high speed.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a two automatic grinding and polishing device of two accuses of double-disc, including the base, the working disc, working disc rotation drive arrangement and grinding and polishing subassembly, the working disc has two sets of, two sets of working discs set up respectively on the top surface of base, two sets of working discs drive rotation through corresponding working disc rotation drive arrangement respectively, grinding and polishing device sets up on the base, grinding and polishing subassembly includes the stand, rotate the bedplate, lift drive arrangement, grinding and polishing head rotation drive arrangement, rotate the bedplate and be connected with stand normal running fit, lift drive arrangement fixed connection is on rotating the bedplate, lift drive arrangement is used for controlling to rotate the bedplate and goes up and down the activity along the stand, grinding and polishing head swing joint is on rotating the bedplate, and be located the below of rotating the bedplate, grinding head rotation drive arrangement is used for driving grinding and polishing head's rotation, be equipped with the centre gripping dish in grinding and polishing head fixed connection, be equipped with a plurality of centre gripping positions on the centre gripping dish, be equipped with pneumatic pressure head rotation drive arrangement and frequency conversion servo control electric signal connection respectively in the top of every centre gripping position.

In the above scheme, the clamping disc is a cylindrical sample clamping disc, a special-shaped sample clamping disc, a thin sheet sample clamping disc or a glass slide clamping disc. Through the arrangement, the clamping disc can be replaced to clamp the opposite workpiece, the thin workpiece or the glass slide, so that the double-disc double-control automatic polishing device can be widely applied.

In the above scheme, grind the throwing head include casing, connecting seat, swivel mount and pivot, the connecting seat with rotate bedplate fixed connection, be equipped with the through-hole at the middle part of connecting seat, be equipped with the bearing in the through-hole, be equipped with the shaft hole that corresponds with the bearing on rotating the bedplate, the upper end of pivot passes the bearing and extends to the top of rotating the bedplate, swivel mount fixed connection is at the middle part of pivot, clamping disk fixed connection is equipped with the pressure head cylinder that is used for driving the pressure head to go up and down on the swivel mount, pressure head cylinder fixed connection in the position that corresponds with the clamping position on the clamping disk be equipped with the gas tube hole on the connecting seat, gas tube one end passes the gas tube hole and is connected with each pressure head cylinder, and the gas tube other end is connected with pressure controller, and pressure controller's air inlet is connected with the air supply, controls the pressure that the pressure head cylinder acts on pressure head and work piece through pressure controller. Through the arrangement, the grinding and polishing head can rotate under the drive of the grinding and polishing head rotation driving device, the pressing head can compress the workpiece clamped on the clamping disc through the action of the pressing head cylinder, the grinding and polishing treatment of the workpiece is realized, the pressure of the pressing head cylinder to the pressing head can be adjusted through the pressure controller, the pressure of the pressing head on the workpiece to be polished is further adjusted, and the polishing and polishing effect of the workpiece is guaranteed.

In the scheme, the grinding and polishing head rotation driving assembly comprises a gear motor, a gear motor driving device and a belt pulley transmission mechanism, wherein the gear motor is in electric signal connection with the gear motor driving device, and an output shaft of the gear motor drives the grinding and polishing head to rotate through the belt pulley transmission mechanism. With this arrangement, the grinding and polishing head can be rotated at a low rotation speed and a high torque can be output.

In the above scheme, lift drive includes cylinder, spliced pole and sliding sleeve, and the cylinder passes through spliced pole and rotates bedplate fixed connection, the sliding sleeve slides and sets up on the stand, sliding sleeve and rotation bedplate fixed connection, the upper end of stand passes through-hole on the rotation bedplate and extends to the top of rotation bedplate, the telescopic link and the stand fixed connection of cylinder. Through this kind of setting, the telescopic link of cylinder can drive and rotate the bedplate and go up and down, drives the grip block that grinds the head below and goes up and down thereupon, when grinding and throwing, the cylinder push rod shrink, drives the distance on cylinder body and stand top and shortens, drives simultaneously and rotates the bedplate and descend, drives and grinds the head and descends, makes the grip block descend to the position that is close with the face of grinding and throwing on the working disc to load the work piece.

In the scheme, the stand column is further provided with a limiting sleeve, and the limiting sleeve is fixedly connected with the stand column through a locking piece. The falling distance of the rotary seat plate can be limited by the limiting sleeve, so that the grinding and polishing head can move to a proper position with the grinding and polishing surface distance on the working disc when the grinding and polishing head descends.

In the scheme, the base is also provided with a cooling water pipe, and the cooling water pipe is connected with an external cooling water pipeline. Through setting up condenser tube, can cool off the cooling to the work piece in the grinding and polishing process, ensure grinding and polishing quality, can also wash the working plate at the back of grinding and polishing end simultaneously with water.

In the above scheme, the base is also provided with a control panel, the control panel is respectively connected with the working disc rotation driving device by electric signals, and the control panel can control the rotation speed and the rotation direction of the working disc through the working disc rotation driving device. The rotating speed and the steering of the two working discs can be respectively adjusted and set through the control panel, so that the two working discs meet the requirements of workpiece polishing.

In the above scheme, grind and throw the subassembly and still include the protective housing, protective housing and rotation bedplate fixed connection still are equipped with on the protective housing and control the panel, control the panel and rotate drive assembly electrical signal connection with lift drive arrangement, mill and throw the head respectively. The assembly on the rotary seat plate can be protected through the protective shell, the control panel can be arranged on the protective shell, the cylinder and the motor on the rotary seat plate are controlled, the rotating speed of the motor is regulated and controlled, and the pressure of the pressure head on the polishing head is regulated.

In the above scheme, the protective housing is further provided with a cooling fan. The cooling fan is arranged to cool the grinding and polishing head rotation driving assembly on the rotation seat plate.

The utility model has the positive effects that: 1) According to the double-disc double-control automatic polishing device, two working discs are arranged on the base, and are respectively and independently controlled through the independent working disc rotation driving device, namely, when one working disc is used for automatically processing one group of workpieces, the other working disc can be in a stop state, and a preparation work such as loading polishing medium or adding polishing working fluid can be performed on the stop working disc, so that after one group of workpieces are processed, polishing processing of the other group of workpieces is started on the prepared other working disc, or processing of the next working procedure is started, the working efficiency is improved, meanwhile, the safety of the polishing device is improved, and the safety risk caused by rotation of the idle working disc is avoided; 2) According to the double-disc double-control automatic polishing device, two working discs are respectively connected with a variable frequency servo control device through independent working disc rotation driving devices, the variable frequency servo control device is a variable frequency control servo rotating device which is regulated independently, the rotating speed and the rotating direction of the working discs can be controlled through the variable frequency servo control device, the working discs can have large torque at low rotating speed, the processing requirement of materials requiring low rotating speed for polishing is met, for example, scratches on the surfaces of nonferrous metals can be removed better for processing nonferrous metals, and meanwhile, the materials requiring large torque processing can be processed because the output torque is large; 3) According to the double-disc double-control automatic polishing device, by the aid of the servo rotating device controlled by frequency conversion, the plane runout of the working disc during rotation is lower than 10 mu m, so that the working disc can rotate more stably, and the processing quality of a workpiece is higher.

Drawings

Fig. 1 is a schematic structural diagram of a double-disc double-control automatic polishing device of the utility model.

Fig. 2 is a schematic structural view of the double-disc double-control automatic polishing device (the protective shell of the polishing assembly is removed).

Fig. 3 is a schematic structural view of the polishing assembly (with the protective shell of the polishing assembly removed).

Fig. 4 is a schematic view of the lifting mechanism of the polishing assembly (with the housing of the polishing head removed).

Fig. 5 is a schematic view of the internal structure of the polishing head.

Fig. 6 is a schematic view of the internal structure of the base.

Fig. 7 is a schematic view of the bottom structure of the base.

The reference numerals in the figures are: the polishing device comprises a base 1, a control panel 11, a waterproof cover 12, a cooling water pipe 13, a motor 14, a transmission mechanism 15, a variable frequency servo control device 16, a stand column connecting seat 17, a working disc 2, a polishing assembly 3, a protective shell 31, a control panel 311, a cooling fan 312, a stand column 32, a rotating seat plate 33, a lifting driving device 34, an air cylinder 341, a connecting column 342, a sliding sleeve 343, a limit sleeve 344, a polishing head 35, a shell 351, a connecting seat 352, a rotating seat 353, a rotating shaft 354, a clamping disc 355, a pressure head 356, a pressure head air cylinder 357, a polishing head rotating driving assembly 36, a gear motor 361, a belt pulley transmission mechanism 362 and a gear motor driving device 363.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described by means of examples, and it is obvious that the described examples are only some, but not all, examples of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The double-disc double-control automatic polishing device shown in fig. 1 comprises a base 1, a working disc 2, a working disc rotation driving device and a polishing assembly 3.

The base 1 is a hollow base. The front side of the base 1 is provided with two groups of control panels 11, the two groups of working discs 1 are arranged at the top of the base 1, the base 1 is internally provided with working disc rotation driving devices which respectively correspond to the two groups of working discs 2 and drive the working discs 2 to rotate, the working disc rotation driving devices are electrically connected with a variable frequency servo control device 16, and the control panels 11 are provided with adjusting keys for adjusting the rotating speeds and the rotating directions of motors corresponding to the two working discs 2.

The variable frequency servo control device 16 can adopt the existing motor controller, and the function of the variable frequency servo control device is to set the rotating speed and the steering direction of the motor according to the requirement, and the motor can have enough torque at the low rotating speed.

As shown in fig. 6, the working disc rotation driving device comprises a motor 14 and a transmission mechanism 15, the motor 14 is electrically connected with a variable frequency servo control device 16, the rotation speed, the steering direction and the output torque of the motor 14 can be controlled by the variable frequency servo control device 16, the transmission mechanism 15 can be selected according to requirements, for example, a gear transmission mechanism or a belt pulley transmission mechanism can be selected, and in the embodiment shown in fig. 7, the transmission mechanism is a belt pulley transmission mechanism.

In order to make the rotation of the working disc smoother, a bearing seat is arranged in the base 1, and the rotating shaft of the working disc 2 is in rotating fit with the bearing seat.

Through holes are formed in the top plate of the base 1 and correspond to the working plate 2, the aperture of each through hole is larger than the diameter of the working plate 2, and a waterproof cover 12 in sealing fit with the working plate 2 is arranged around the working plate 2. By providing the waterproof cover 12, the liquid can be prevented from flowing into the base 1 when the working disk 2 rotates, and damage is caused to electric appliances in the base 1.

The base 1 is also provided with a cooling water pipe 13, and the cooling water pipe 13 is connected with an external cooling water pipeline. Through setting up condenser tube 13, can cool off the cooling to the work piece in the grinding and polishing process, ensure grinding and polishing quality, can also wash working dish 2 with water after grinding and polishing finishes simultaneously.

In order to facilitate the assembly of the upright post 32 of the polishing assembly 3, an upright post connecting seat 17 is further arranged in the base 1, the upright post connecting seat 17 is fixedly connected with the bottom plate of the base 1, and an assembly hole matched with the upright post 32 is formed in the upright post connecting seat 17.

The grinding and polishing assembly 3 comprises a protective shell 31, a stand column 32, a rotary seat plate 33, a lifting driving device 34, a grinding and polishing head 35 and a grinding and polishing head rotary driving assembly 36.

The upright post 32 can be a cylindrical upright post, and the upright post 32 is fixedly connected to an upright post connecting seat on the base.

The rotating seat plate 33 is connected with the upright post 32 in a rotating fit manner, the lifting driving device 34 is fixedly connected to the rotating seat plate 33, and the lifting driving device 34 is used for controlling the lifting movement of the rotating seat plate 33 along the upright post 32.

The lifting driving device 34 comprises an air cylinder 341, connecting columns 342 and a sliding sleeve 343, the air cylinder 341 is arranged above the rotating seat plate 33, the cylinder body of the air cylinder 341 is fixedly connected with the rotating seat plate 33 through a plurality of connecting columns 342, the number of the connecting columns 342 can be selected according to requirements, for example, four connecting columns 342 can be selected, and the four connecting columns 342 are respectively connected to four corners of the cylinder body of the air cylinder 341. The sliding sleeve 343 is slidably arranged on the upright post 32, the sliding sleeve 343 is fixedly connected with the rotating seat plate 33, the upper end of the upright post 32 penetrates through the through hole on the rotating seat plate 33 to extend to the upper side of the rotating seat plate 33, and the telescopic rod of the air cylinder 341 is fixedly connected with the top end of the upright post 32.

In order to limit the descending distance of the polishing assembly 3, a limiting sleeve 344 is further arranged on the upright post 32, and the limiting sleeve 344 is fixedly connected with the upright post 32 through a locking piece. The setting of the stop collar 344 can limit the lowering distance of the rotary base plate 33, so that the polishing head 35 can move to a proper position with the polishing surface on the working disk 2 when lowering.

The protective shell 31 of the polishing assembly 3 is fixedly connected with the rotating seat plate 33, and components such as a lifting driving device 34, a polishing head rotating driving device 36 and the like on the rotating seat plate 33 are arranged in the protective shell 31 to protect the components.

A control panel 311 is arranged on the protective shell 31, and the control panel 311 is respectively connected with the lifting driving device 34 and the polishing head rotation driving assembly 36 in an electric signal manner. By providing the control panel 311, the cylinder 341 of the lifting driving device 34 on the rotating seat plate 33 and the gear motor 361 of the polishing head rotating driving assembly 36 can be controlled, the rotating speed of the gear motor 361 can be controlled, and the pressure of the pressure head 356 on the polishing head 35 can be regulated.

A cooling fan 312 may be further provided on the protective case 31. The cooling fan 312 is provided to cool the grinding-polishing-head rotation driving unit 36 on the rotation base plate 33.

The abrasive head 35 includes a housing 351, a coupling seat 352, a swivel 353, a spindle 354, a clamping disk 355, and a ram 356.

The connecting seat 352 is fixedly connected with the rotating seat plate 33, a through hole is formed in the middle of the connecting seat 352, a bearing is arranged in the through hole, a shaft hole corresponding to the bearing is formed in the rotating seat plate 33, and the upper end of the rotating shaft penetrates through the bearing and extends to the upper portion of the rotating seat plate 33.

The grinding and polishing head rotation driving assembly 36 is arranged on the rotation seat plate 33, the grinding and polishing head rotation driving assembly 36 comprises a gear motor 361, a gear motor driving device 363 and a belt pulley transmission mechanism 362, a driven belt pulley is arranged at the top end of the rotating shaft 354, a driving belt pulley is arranged on an output shaft of the gear motor 361, the driving belt pulley is connected with the driven belt pulley through a belt pulley, and the gear motor 361 drives the rotating shaft 354 of the grinding and polishing head 35 to rotate through the belt pulley transmission mechanism 362 so as to drive the grinding and polishing head 35 to rotate. The gear motor drive 363 is provided on the rotation seat plate 33, and the gear motor 361 is electrically connected to the gear motor drive 363.

The clamping disk 355 is fixedly connected to the lower end of the rotating shaft 354, and the clamping disk 355 can be fixedly connected with the rotating shaft 354 through a plurality of bolts. The clamping disk 355 can be a cylindrical sample clamping disk, a special-shaped sample clamping disk, a flake sample clamping disk or a glass slide clamping disk, the cylindrical sample clamping disk is used for clamping a cylindrical workpiece, the special-shaped sample clamping disk can clamp a sample with a different structure, the flake sample clamping disk can clamp a sample with a flake structure, and the glass slide clamping disk can clamp a sample for demonstration, so that the clamping disk can be selected according to different polished workpieces, and the double-disk double-control automatic polishing device can be widely applied. And each clamping disc is provided with a plurality of clamping positions of the workpieces.

The swivel mount 353 fixed connection is equipped with pressure head cylinder 357 respectively in the middle part of pivot 354 on swivel mount 353 and each clamping position on the grip disc 355 corresponds, pressure head cylinder 356 and swivel mount 353 fixed connection, and the telescopic link of pressure head cylinder 357 passes the through-hole on the swivel mount 353 and extends to the below of swivel mount 353, is connected with pressure head 356 at the lower extreme of the telescopic link of pressure head cylinder 357, promotes the pressure head through the pressure head cylinder and moves down, compresses tightly the work piece on the grip disc.

The connecting seat 352 is provided with an air pipe hole, one end of the air pipe passes through the air pipe hole to be connected with each pressure head cylinder 357, the other end of the air pipe is connected with a pressure controller, and an air inlet of the pressure controller is connected with an air source. The pressure applied to the ram 356 and the workpiece by the ram cylinder 357 can be regulated by a pressure controller.

The shell 351 of the polishing head 35 can be a cylindrical shell, and the shell 351 is fixedly connected with the swivel 353. The housing 351 protects the ram cylinder 357 and other components inside the grinding and polishing head 35.

When the double-disc double-control automatic polishing device is used for processing workpieces, firstly, a proper clamping disc is selected according to the workpieces to be processed, the clamping disc is fixedly connected to the lower end of a rotating shaft of a polishing head, then sand paper required for polishing is paved on a working disc, a polishing assembly is rotated to be right above the working disc, the polishing assembly is controlled to descend through a control panel on the polishing assembly, a cylinder of a lifting driving device of the polishing assembly drives a rotating seat plate to descend, the clamping disc is lowered to a position close to the working disc, then the workpieces are placed on a clamping position on the clamping disc, a pressing force of a pressing head on the workpieces is set through the control panel, the pressing head cylinder is controlled to descend to press the workpieces, then a corresponding steering and rotating speed of the working disc are set through an adjusting key on a base, polishing time is set through the control panel, a starting button on the control panel is pressed, a cooling tap on the base is controlled to be automatically opened, the working disc is automatically started to descend, the working disc is automatically started to rotate, the workpiece is automatically started to rotate, the polishing head is driven to rotate in the opposite direction to rotate, and the polishing head is driven to rotate the workpieces to rotate, and the workpieces are polished to be opposite to rotate. In the process of polishing a workpiece, polishing materials can be paved on the other working disc, polishing liquid is added, the preparation work of polishing is completed, after the polishing operation is completed, the working disc and the polishing head rotation driving assembly stop rotating, a cooling water pipe is controlled by an electromagnetic valve to stop water supply, a pressure head on the polishing head is lifted, the compression of the workpiece is relieved, the workpiece is taken down from the clamping disc, the polishing assembly is controlled to lift, the grinding disc assembly is rotated to the position above the working disc paved with the polishing materials, the polishing assembly is controlled to descend, the polished workpiece is loaded on the clamping disc according to the method, the polishing operation is carried out on the workpiece according to the steps similar to the polishing process, and the workpiece is taken down after the polishing operation is completed, so that the processing of the workpiece is completed.

According to the double-disc double-control automatic polishing device, two working discs are arranged on the base, and the two working discs can be controlled independently through the independent working disc rotation driving device respectively, namely, when one working disc is used for automatically processing one group of workpieces, the other working disc can be in a stop state, and a preparation work such as loading polishing medium or adding polishing working fluid can be performed on the stop working disc, so that after one group of workpieces are processed, polishing processing of the other group of workpieces is started on the prepared other working disc, or processing of the next working procedure is started, the working efficiency is improved, and meanwhile, the safety of the polishing device is improved, and the safety risk caused by rotation of the idle working disc is avoided.

According to the double-disc double-control automatic polishing device, two working discs are respectively connected with a frequency conversion servo control device through independent working disc rotation driving devices, the frequency conversion servo control device is a frequency conversion control servo rotating device which is regulated independently, the rotating speed and the rotating direction of the working discs can be controlled through the frequency conversion servo control device, the working discs can have large torque at low rotating speed, the processing requirement of materials requiring low rotating speed for polishing is met, for example, scratches on the surfaces of nonferrous metals can be removed better for processing nonferrous metals, and meanwhile, the materials requiring large torque processing can be processed because the output torque is large.

According to the double-disc double-control automatic polishing device, by the aid of the servo rotating device controlled by frequency conversion, the plane runout of the working disc during rotation is lower than 10 mu m, so that the working disc can rotate more stably, and the processing quality of a workpiece is higher.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a two automatic grinding and polishing device of two accuse which characterized in that: the device comprises a base, two working discs, a working disc rotation driving device and a polishing assembly, wherein the two working discs are respectively arranged on the top surface of the base, the two working discs are respectively driven to rotate through the corresponding working disc rotation driving devices, the polishing assembly is arranged on the base and comprises a stand column, a rotation seat plate, a lifting driving device, polishing heads and a polishing head rotation driving assembly, the rotation seat plate is connected with the stand column in a rotation fit manner, the lifting driving device is fixedly connected to the rotation seat plate, the lifting driving device is used for controlling the rotation seat plate to move up and down along the stand column, the polishing heads are movably connected to the rotation seat plate and are positioned below the rotation seat plate, the polishing head rotation driving device is arranged on the rotation seat plate, the polishing head rotation driving device is used for driving the rotation of the polishing heads, clamping discs are arranged below the polishing heads and are fixedly connected with the polishing heads, a plurality of clamping positions are arranged on the clamping discs, and pneumatic pressure heads are respectively arranged above each clamping position, and the working disc rotation driving device is electrically connected with a variable-frequency servo control device.

2. The double-disc double-control automatic polishing device according to claim 1, wherein: the clamping disc is a cylindrical sample clamping disc, a special-shaped sample clamping disc, a sheet sample clamping disc or a glass slide clamping disc.

3. The double-disc double-control automatic polishing device according to claim 1, wherein: the grinding and polishing head comprises a shell, a connecting seat, a rotating seat and a rotating shaft, wherein the connecting seat is fixedly connected with the rotating seat plate, a through hole is formed in the middle of the connecting seat, a bearing is arranged in the through hole, a shaft hole corresponding to the bearing is formed in the rotating seat plate, the upper end of the rotating shaft penetrates through the bearing and extends to the upper side of the rotating seat plate, the rotating seat is fixedly connected to the middle of the rotating shaft, the clamping disc is fixedly connected to the lower end of the rotating shaft, a pressure head cylinder for driving a pressure head to lift is arranged on the rotating seat and fixedly connected to a position corresponding to a clamping position on the clamping disc, a gas pipe hole is formed in the connecting seat, one end of the gas pipe penetrates through the gas pipe hole to be connected with each pressure head cylinder, the other end of the gas pipe is connected with a pressure controller, and a gas inlet of the pressure controller is connected with a gas source and controls the pressure head cylinder to act on the pressure head and a workpiece through the pressure controller.

4. The double-disc double-control automatic polishing device according to claim 1, wherein: the grinding and polishing head rotation driving assembly comprises a gear motor, a gear motor driving device and a belt pulley transmission mechanism, wherein the gear motor is electrically connected with the gear motor driving device, and an output shaft of the gear motor drives the grinding and polishing head to rotate through the belt pulley transmission mechanism.

5. The double-disc double-control automatic polishing device according to claim 1, wherein: the lifting driving device comprises a cylinder, a connecting column and a sliding sleeve, the cylinder is fixedly connected with the rotating seat plate through the connecting column, the sliding sleeve is arranged on the upright post in a sliding mode, the sliding sleeve is fixedly connected with the rotating seat plate, the upper end of the upright post penetrates through a through hole in the rotating seat plate to extend to the upper portion of the rotating seat plate, and a telescopic rod of the cylinder is fixedly connected with the upright post.

6. The double-disc double-control automatic polishing device according to claim 1, wherein: and the stand column is also provided with a limiting sleeve, and the limiting sleeve is fixedly connected with the stand column through a locking piece.

7. The double-disc double-control automatic polishing device according to claim 1, wherein: and the base is also provided with a cooling water pipe which is connected with an external cooling water pipeline.

8. The double-disc double-control automatic polishing device according to claim 1, wherein: the base is also provided with a control panel which is respectively connected with the electric signals of the working disc rotation driving device, and the control panel can control the rotation speed and the rotation direction of the working disc through the working disc rotation driving device.

9. The double-disc double-control automatic polishing device according to claim 1, wherein: the grinding and polishing assembly further comprises a protective shell, the protective shell is fixedly connected with the rotary seat plate, an operation panel is further arranged on the protective shell, and the operation panel is respectively connected with the lifting driving device and the grinding and polishing head rotary driving assembly through electric signals.

10. The double-disc double-control automatic polishing device according to claim 9, wherein: and a cooling fan is further arranged on the protective shell.