WO2022077614A1 - Method for improving surface evenness of electroplated platinum, and polishing device used by method - Google Patents

Abstract

A method for improving surface evenness of electroplated platinum and a polishing device used by the method. The method comprises the following steps: S1. performing drilling wave crest polishing; S2. performing visual inspection and determining whether to perform drilling wave crest polishing again; S3, electroplating a copper plate; S4, polishing the electroplated copper plate by using a polishing device, and adjusting the evenness thereof; and S5, performing visual inspection on the surface of the polished copper plate, performing checking by using a copper thickness checker, and determining whether to polish an electroplated layer again. By means of the design and cooperation of a guide groove, a linear sliding table and a push block in the polishing device, a workpiece can be moved, adjusted, aligned and clamped, such that a stable polishing condition is provided for the workpiece; and by means the cooperation of a hydraulic cylinder, a frame body, a first polishing structure and a second polishing structure, the hydraulic cylinder can drive the first polishing structure and the second polishing structure to make contact with the workpiece, so as to realize polishing, thereby effectively improving the polishing production efficiency.

Description

A method for improving the flatness of electroplating platinum surface and grinding equipment used therefor

technical field

The invention relates to the field of electroplating platinum surface processing, and more particularly, to a method for improving the flatness of electroplating platinum surface and a polishing device used therefor.

Background technique

According to customer needs, it is necessary to electroplate the platinum layer on the outer wall of the copper sheet or copper plate. Most of the existing treatment methods are to directly electroplate the copper sheet or copper plate without the grinding action before electroplating, resulting in the electroplated platinum layer being relatively rough and flat. Need to be improved; some grinding operations will be carried out before electroplating, but most of the existing grinding equipment is a brush machine, the grinding accuracy is not enough, which affects the grinding quality, and the grinding efficiency is low, which will also affect the quality of the platinum electroplating layer; and after electroplating The copper plate also needs to be ground, and it is difficult for the traditional grinding machine to achieve the required grinding accuracy.

SUMMARY OF THE INVENTION

In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to propose a method for improving the flatness of the surface of electroplating platinum and the grinding equipment used. It can effectively improve the grinding quality, and can provide a good platinum plating adhesion surface; and double grinding is also performed after electroplating to ensure that the flatness of the electroplating layer meets the production requirements; its grinding equipment can automatically align the workpiece and hold it firmly, thus Carry out effective grinding and effectively improve the grinding efficiency.

For this purpose, the present invention adopts following technical scheme:

The invention provides a method for improving the surface flatness of electroplating platinum, comprising the following steps:

S1 . Use grinding equipment to drill and grind the surface of the copper plate after the hole is turned;

S2 , Visually inspect the surface of the polished copper plate. If the multi-drilling wave crest grinding effect meets the requirements, then complete the grinding. If the grinding effect does not meet the requirements, repeat S1 steps, and adjust the grinding parameters before grinding;

S3 , The copper plate after drilling wave crest grinding is completed for electroplating;

S4 , Use grinding equipment to grind the electroplated copper plate to adjust the flatness;

S5 . Perform visual inspection and copper thickness inspection on the surface of the polished copper plate. If the polishing effect meets the requirements of the surface flatness of the copper plate, the polishing action can be completed; if the polishing effect does not meet the requirements of the surface flatness of the copper plate, repeat S4 Steps, and adjust the grinding parameters before grinding until the surface of the polished copper plate meets the flatness requirements.

Further, when grinding the surface of the copper plate using the grinding equipment, the following steps are included:

B1 , Clamp and fix the copper plate, and use a ceramic brush grinding disc to grind the surface of the copper plate once;

B2 , Transfer the copper plate to another grinding part, and use a non-woven grinding disc for secondary grinding.

The present invention also provides a polishing device used in the method for improving the flatness of the surface of electroplating platinum, comprising a bottom plate and a workbench, the workbench is fixed on the top surface of the bottom plate through a support column, and the top surface of the bottom plate is fixed A hydraulic cylinder is installed, a frame body is fixedly installed at the end of the piston rod of the hydraulic cylinder, both ends of the frame body are open, and the workbench runs through both ends of the frame body; the top of the frame body is installed with a frame body. A first grinding structure and a second grinding structure, the first grinding structure and the second grinding structure are symmetrical with respect to the center of the frame, the first grinding structure is used for one grinding of the surface of the copper plate, the second grinding structure The grinding structure is used for secondary grinding of the surface of the copper plate; the top surface of the worktable is provided with a first guide groove and a second guide groove along the width direction, and the first guide groove and the second guide groove are located in the The inner side of the frame body; the top surface of the workbench is provided with two third guide grooves and four fourth guide grooves along the length direction, and the third guide grooves are located at a part of the first guide groove away from the center of the frame body. side, two of the third guide grooves are symmetrically arranged about the center line of the worktable; the fourth guide groove is located on the side of the first guide groove away from the third guide groove, and one of the third guide grooves is located on the side of the first guide groove away from the third guide groove. The guide grooves correspond to the two fourth guide grooves, and the two fourth guide grooves are symmetrically arranged with respect to the third guide grooves; a first linear slide table is installed below the first guide grooves, and the second A second linear sliding table is installed below the guide groove, the first linear sliding table and the second linear sliding table are mounted on a frame plate, the frame plate is fixedly erected between the support columns, and the first A first push rod motor is installed on the slider of the linear slide table, a first push block is fixed at the end of the piston rod of the first push rod motor, and the first push rod motor drives the first push block into and out of the first guide groove and protrude from the top surface of the worktable; a second push rod motor is installed on the slider of the second linear slide table, and the end of the piston rod of the second push rod motor A second push block is fixed, and the second push rod motor drives the second push block into and out of the second guide groove, and protrudes from the top surface of the workbench; under each of the third guide grooves A third linear sliding table is installed, the third linear sliding table is fixed on the bottom surface of the worktable through the first bracket, and a third push block is fixed on the sliding block of the third linear sliding table. The third push block protrudes from the top surface of the worktable through the third guide groove; two fourth linear slide tables are installed under the fourth guide groove corresponding to the third linear slide table, and the first The four linear slides are fixed on the bottom surface of the worktable through the second bracket, the sliding block of the fourth linear slide is fixed with a supporting plate, and the top surface of the supporting plate is fixed with a fourth A push block, the fourth push block protrudes from the top surface of the workbench through the corresponding fourth guide groove; a control panel is installed on the bottom plate through a bracket.

Further, a partition is fixed inside the frame, and the partition is located above the workbench; the first grinding structure includes a first driving mechanism and a first grinding disc, and the first driving mechanism It includes a rotating shaft, a driving motor and a gear set. The rotating shaft is erected on the partition plate and the top surface of the frame through a bearing, and the output shaft of the driving motor is connected to the rotating shaft through the gear set. The first grinding disc is fixed on the bottom end of the rotating shaft; the first grinding disc is a ceramic brush grinding disc; the second grinding structure includes a second driving mechanism and a second grinding disc, the second driving mechanism The structure of the second driving mechanism is the same as that of the first driving mechanism, and the second driving mechanism drives the second grinding disc to rotate; the second grinding disc is a non-woven grinding disc.

Further, the number of the hydraulic cylinders is 2 , the two hydraulic cylinders are symmetrically arranged with respect to the center of the bottom surface of the frame body.

Further, the two side walls of the first push block slide against the groove walls of the first guide groove; the two side walls of the second push block slide against the groove walls of the second guide groove ; The two side walls of the third push block slide against the groove walls of the third guide groove; the two side walls of the fourth push block slide against the groove walls of the fourth guide groove.

Further, the first guide groove and the second guide groove have the same structure, the first push block and the second push block have the same structure, the first linear slide table and the second linear slide The table structure is the same, and the first push rod motor and the second push rod motor have the same structure.

The beneficial effects of the present invention are:

The invention provides a method for improving the flatness of the surface of electroplating platinum and the grinding equipment used. The method is simple. The copper sheet or copper plate is double-polished before electroplating, which can effectively improve the grinding quality and provide a good platinum electroplating adhesion surface. ; And double grinding is also performed after electroplating to ensure that the flatness of the electroplating layer meets the production requirements; among them, the first guide groove, the second guide groove, the third guide groove, the fourth guide groove, the first straight line in the grinding equipment The design and coordination of the sliding table, the second linear sliding table, the third linear sliding table, the fourth linear sliding table, the first push block, the second push block, the third push block and the fourth push block can move the workpiece Adjust, align, and clamp to provide stable grinding conditions for the workpiece; and the cooperation of the hydraulic cylinder, the frame, the first grinding structure and the second grinding structure can drive the frame to rise and fall through the hydraulic cylinder, thereby driving the first grinding The structure and the second grinding structure are in contact with the workpiece to achieve grinding; the overall cooperation can automatically align and stably clamp the workpiece, so as to carry out effective grinding and effectively improve the grinding production efficiency.

Description of drawings

picture 1 is the front view of the grinding device provided in the specific embodiment of the present invention;

picture 2 is a side cross-sectional view of a grinding device provided in a specific embodiment of the present invention;

picture 3 It is a top view of the workbench provided in the specific embodiment of the present invention.

In the picture: 100 , bottom plate; 110 , support column; 200 , workbench; 210 , the first guide groove; 220 , the second guide groove; 230 , the third guide groove; 240 , the fourth guide groove; 300 , hydraulic cylinder; 310 ,framework; 320 , partition; 410 , the first grinding structure; 411 , the first grinding disc; 420 , the second grinding structure; 421 , the second grinding disc; 510 , the first linear slide; 511 , the first push rod motor; 512 , the first push block; 520 , the second linear slide; 521 , the second push rod motor; 522 , the second push block; 530 , the third linear slide; 531 , the third push block; 540 , the fourth linear slide; 541 , the fourth push block; 600 , control panel.

Detailed ways

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

As shown 1 to figure 3 As shown, a specific embodiment of the present invention discloses a method for improving the surface flatness of electroplating platinum, comprising the following steps:

S1 . Use grinding equipment to drill and grind the surface of the copper plate after the hole is turned;

S2 , Visually inspect the surface of the polished copper plate. If the multi-drilling wave crest grinding effect meets the requirements, then complete the grinding. If the grinding effect does not meet the requirements, repeat S1 steps, and adjust the grinding parameters before grinding;

S3 , The copper plate after drilling wave crest grinding is completed for electroplating;

S4 , Use grinding equipment to grind the electroplated copper plate to adjust the flatness;

S5 . Perform visual inspection and copper thickness inspection on the surface of the polished copper plate. If the polishing effect meets the requirements of the surface flatness of the copper plate, the polishing action can be completed; if the polishing effect does not meet the requirements of the surface flatness of the copper plate, repeat S4 Steps, and adjust the grinding parameters before grinding until the surface of the polished copper plate meets the flatness requirements.

Further, when grinding the surface of the copper plate using the grinding equipment, the following steps are included:

B1 , Clamp and fix the copper plate, and use a ceramic brush grinding disc to grind the surface of the copper plate once;

B2 , Transfer the copper plate to another grinding part, and use a non-woven grinding disc for secondary grinding.

The invention also provides a grinding device used in the method for improving the flatness of the electroplating platinum surface, comprising a bottom plate 100 and workbench 200 , the workbench 200 through the support column 110 fixed to the base plate 100 the top surface, the bottom plate 100 The top surface is fixedly installed with a hydraulic cylinder 300 , the hydraulic cylinder 300 The end of the piston rod is fixedly installed with a frame 310 , the frame 310 open at both ends, the workbench 200 through the frame 310 both ends of the frame; the frame 310 The top of the installed with the first grinding structure 410 and the second grinding structure 420 , the first grinding structure 410 and the second grinding structure 420 About the frame 310 The center of the symmetrical, the first grinding structure 410 Used for primary grinding of copper plate surface, the second grinding structure 420 Used for secondary grinding of copper plate surface; the worktable 200 The top surface is provided with a first guide groove along the width direction 210 and the second guide groove 220 , the first guide groove 210 and the second guide groove 220 are located in the frame 310 inside; the table 200 There are two third guide grooves along the length of the top surface 230 and four fourth guide grooves 240 , the third guide groove 230 located in the first guide groove 210 away from the frame 310 one side of the center, two of the third guide grooves 230 About the workbench 200 The center line is symmetrically arranged; the fourth guide groove 240 located in the first guide groove 210 away from the third guide groove 230 one side of the third guide groove 230 with two of the fourth guide grooves 240 Correspondingly, two of the fourth guide grooves 240 About the third guide groove 230 Symmetrical arrangement; the first guide groove 210 The first linear slide table is installed below the 510 , the second guide groove 220 A second linear slide is installed below the 520 , the first linear slide 510 and the second linear slide 520 Installed on a shelf plate, the shelf plate is fixedly erected on the support column 110 between, the first linear slide 510 The first push rod motor is installed on the slider of 511 , the first push rod motor 511 The end of the piston rod is fixed with a first push block 512 , the first push rod motor 511 drive the first push block 512 into and out of the first guide groove 210 , and protruding from the workbench 200 the top surface; the second linear slide 520 A second push rod motor is installed on the slider of 521 , the second push rod motor 521 The end of the piston rod is fixed with a second push block 522 , the second push rod motor 521 drive the second push block 522 into and out of the second guide groove 220 , and protruding from the workbench 200 the top surface; each of the third guide grooves 230 A third linear slide is installed below the 530 , the third linear slide 530 Fixed on the workbench by the first bracket 200 the bottom surface of the third linear slide 530 A third push block is fixed on the slider 531 , the third push block 531 through the third guide groove 230 protruding from the workbench 200 the top surface; the fourth guide groove 240 The bottom corresponds to the third linear slide 530 Two fourth linear slides are installed 540 , the fourth linear slide 540 Fixed on the workbench by a second bracket 200 the bottom surface of the fourth linear slide 540 A support plate is fixed on the sliding block of the support plate, and a fourth push block is fixed on both ends of the top surface of the support plate 541 , the fourth push block 541 Opposite the corresponding fourth guide groove 240 protruding from the workbench 200 the top surface; the bottom plate 100 The control panel is installed through the bracket 600 .

The above-mentioned method for improving the flatness of the surface of electroplating platinum and the grinding equipment used are simple, and the double grinding action is adopted, which can effectively improve the grinding quality; the first guide groove in the grinding equipment 210 , the second guide groove 220 , the third guide groove 230 , the fourth guide groove 240 , the first linear slide 510 , the second linear slide 520 , the third linear slide 530 , the fourth linear slide 540 , the first push block 512 , the second push block 522 , the third push block 531 and the fourth push block 541 The design and coordination of the workpiece can be adjusted, aligned and clamped to provide stable grinding conditions for the workpiece; the hydraulic cylinder 300 ,framework 310 , the first grinding structure 410 and the second grinding structure 420 The cooperation can be achieved by the hydraulic cylinder 300 drive frame 310 lift, thereby driving the first grinding structure 410 and the second grinding structure 420 It is in contact with the workpiece to achieve grinding; the overall cooperation can automatically align and firmly clamp the workpiece, so as to carry out effective grinding and effectively improve the grinding production efficiency.

Further, the frame 310 The interior is fixed with a partition 320 , the separator 320 on the workbench 200 above; the first grinding structure 410 Including a first drive mechanism and a first grinding disc 411 , the first drive mechanism includes a rotating shaft, a drive motor and a gear set, and the rotating shaft is erected on the partition plate through a bearing 320 with the frame 310 On the top surface, the output shaft of the driving motor is connected with the rotating shaft through the gear set, and the first grinding disc 411 fixed on the bottom end of the rotating shaft; the first grinding disc 411 It is a ceramic brush grinding disc; the second grinding structure 420 Including the second drive mechanism and the second grinding disc 421 , the second driving mechanism has the same structure as the first driving mechanism, and the second driving mechanism drives the second grinding disc 421 to rotate; the second sanding disc 421 It is a non-woven grinding disc; the first grinding disc 411 It is a ceramic brush grinding disc, which can be used for one time grinding and the second grinding disc 421 It is a non-woven grinding disc, which can be used for secondary grinding and double grinding, which can effectively improve the grinding quality.

Further, the hydraulic cylinder 300 The quantity is 2 , the two hydraulic cylinders 300 About the frame 310 The center of the bottom surface is symmetrically arranged; this structural design can ensure that the frame body is pushed smoothly, making the first grinding disc 411 and second grinding disc 421 Can be accurately aligned with the workpiece for high precision grinding.

Further, the first push block 512 The two side walls of the 210 The groove wall slides; the second push block 522 the two side walls of the second guide groove 220 The groove wall slides; the third push block 531 The two side walls of the 230 The groove wall slides; the fourth push block 541 The two side walls of the 240 The groove wall slides; the structural design can define the first push block 512 , the second push block 522 , the third push block 531 and the fourth push block 541 The moving trajectory can be accurately pushed and clamped to fix the workpiece.

Further, the first guide groove 210 and the second guide groove 220 The structure is the same, the first push block 512 and the second push block 522 The structure is the same, the first linear slide table 510 and the second linear slide 520 The structure is the same, the first push rod motor 511 and the second push rod motor 521 The structure is the same.

working principle:

When grinding with grinding equipment, the length, width, thickness and coating thickness of the workpiece can be input into the control panel 600 , and then place the workpiece on the table 200 the top surface, and corresponds to the first grinding structure 410 position, then start the equipment, the third linear slide 530 Start, push the workpiece to the first grinding structure 410 move in the direction of , and then the corresponding fourth linear slide 540 Start, define the front and rear ends of the workpiece, and then the first linear slide table 510 and the second linear slide 520 Start, and cooperate with the first push rod motor 511 and the second push rod motor 521 The two ends of the workpiece are limited, and the alignment adjustment and clamping and fixing of the workpiece are completed; then the first grinding structure 410 start, hydraulic cylinder 300 drive frame 310 down so that the first sanded structure 410 Against the workpiece, and grinding;

After the preset time for one grinding is reached, the hydraulic cylinder will 300 drive frame 310 move up so that the first sanded structure 410 Leave the workpiece and stop the first grinding structure 410 action; then, the third linear slide of this part 530 and the fourth linear slide 540 Reset, release the clamping on both sides of the workpiece, and start the first linear slide 510 and the second linear slide 520 Transfer the workpiece to the second grinding structure 420 position, and then start the third linear slide of this position 530 and the fourth linear slide 540 , so as to clamp and fix the workpiece again; then the second grinding structure 420 start, hydraulic cylinder 300 Start and drive the frame 310 down so that the second sanding structure 420 Resist the workpiece and perform secondary grinding; after the preset time for secondary grinding is reached, the hydraulic cylinder 300 drive frame 310 move up so that the second sanding structure 420 Leave the workpiece and stop the second grinding structure 420 action; the first linear slide 510 , the second linear slide 520 , the third linear slide 530 Start, release the clamping of the workpiece, and start the fourth linear slide again 540 , try to push the workpiece outwards, the staff takes out the workpiece, and conducts a second inspection. If the grinding effect is still not up to the standard, the above grinding process needs to be repeated until the grinding effect is up to the standard.

The present invention has been described in terms of preferred embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited by the specific embodiments disclosed herein, and other embodiments falling within the claims of the present application all belong to the protection scope of the present invention .

Claims (6)

1. A method for improving the surface flatness of electroplating platinum, which is characterized in that: comprising the following steps:

   S1. Use grinding equipment to drill and grind the surface of the copper plate after the hole is turned;

   S2. Visually inspect the surface of the polished copper plate. If the multi-drilling wave crest grinding effect meets the requirements, then complete the grinding. If the grinding effect does not meet the requirements, repeat step S1 and adjust the grinding parameters before grinding;

   S3. The copper plate after the drilling wave crest grinding is completed is electroplated;

   S4. Use grinding equipment to grind the electroplated copper plate to adjust the flatness;

   S5. Perform visual inspection and copper thickness inspection on the surface of the polished copper plate. If the polishing effect meets the requirements of the surface flatness of the copper plate, the polishing action can be completed; Adjust the grinding parameters before grinding until the surface of the polished copper plate meets the flatness requirements.

   2. a kind of method that improves electroplating platinum surface flatness according to claim 1, is characterized in that: when using grinding equipment to carry out copper plate surface grinding, comprise the following steps:

   B1. Clamp and fix the copper plate, and use a ceramic brush grinding disc to grind the surface of the copper plate once;

   B2. Transfer the copper plate to another grinding part, and use a non-woven grinding disc for secondary grinding.
2. A grinding device used for the method for improving the flatness of the surface of electroplating platinum according to claim 1, characterized in that it comprises a bottom plate (100) and a worktable (200), the worktable (200) passing through a support column (110) is fixed on the top surface of the bottom plate (100), a hydraulic cylinder (300) is fixedly installed on the top surface of the bottom plate (100), and a frame body is fixedly mounted on the end of the piston rod of the hydraulic cylinder (300) (310), both ends of the frame body (310) are open, and the workbench (200) runs through both ends of the frame body (310); a first grinding structure is installed on the top of the frame body (310) (410) and the second grinding structure (420), the first grinding structure (410) and the second grinding structure (420) are symmetrical with respect to the center of the frame body (310), and the first grinding structure ( 410) is used for primary grinding of the surface of the copper plate, and the second grinding structure (420) is used for the secondary grinding of the surface of the copper plate; the top surface of the worktable (200) is provided with a first guide groove (210) along the width direction and a second guide groove (220), the first guide groove (210) and the second guide groove (220) are both located inside the frame body (310); The length direction is provided with two third guide grooves (230) and four fourth guide grooves (240), the third guide grooves (230) are located in the first guide groove (210) away from the frame body (310) On one side of the center, the two third guide grooves (230) are symmetrically arranged with respect to the center line of the worktable (200); the fourth guide groove (240) is located at a distance from the first guide groove (210) one side of the third guide groove (230), and one of the third guide grooves (230) corresponds to the two fourth guide grooves (240), and the two fourth guide grooves (240) are related to the first guide groove (240). The three guide grooves (230) are symmetrically arranged; a first linear slide table (510) is installed below the first guide groove (210), and a second linear slide table is installed below the second guide groove (220). (520), the first linear slide table (510) and the second linear slide table (520) are mounted on a shelf plate, the shelf plate is fixedly erected between the support columns (110), and the first linear slide table (520) A first push rod motor (511) is installed on the slider of a linear slide table (510), and a first push block (512) is fixed at the end of the piston rod of the first push rod motor (511). The first push rod motor (511) drives the first push block (512) into and out of the first guide groove (210), and protrudes from the top surface of the worktable (200); the second linear slide A second push rod motor (521) is installed on the slider of the stage (520), and a second push block (522) is fixed at the end of the piston rod of the second push rod motor (521). The rod motor (521) drives the second push block (522) into and out of the second guide groove (220), and protrudes from the top surface of the worktable (200); A third linear slide table (530) is installed below the third guide groove (230), and the third linear slide table (530) is fixed to the bottom surface of the worktable (200) through a first bracket, and the A third push block (531) is fixed on the slider of the third linear slide table (530), and the third push block (531) protrudes from the worktable (200) through the third guide groove (230). ); two fourth linear slides (540) are installed below the fourth guide groove (240) corresponding to the third linear slides (530), and the fourth linear slides (540) The second bracket is fixed on the bottom surface of the worktable (200), the sliding block of the fourth linear slide table (540) is fixedly provided with a supporting plate, and both ends of the top surface of the supporting plate are fixedly provided with A fourth push block (541), the fourth push block (541) protrudes from the top surface of the worktable (200) through the corresponding fourth guide groove (240); on the bottom plate (100) A control panel (600) is mounted through a bracket.
3. The grinding device according to claim 3, characterized in that: a partition plate (320) is fixed inside the frame body (310), and the partition plate (320) is located above the workbench (200); The first grinding structure (410) includes a first driving mechanism and a first grinding disc (411), the first driving mechanism includes a rotating shaft, a driving motor and a gear set, and the rotating shaft is mounted on the partition through a bearing. The plate (320) is connected to the top surface of the frame body (310), the output shaft of the drive motor is connected to the rotating shaft through the gear set, and the first grinding disc (411) is fixed to the rotating shaft The first grinding disc (411) is a ceramic brush grinding disc; the second grinding structure (420) includes a second driving mechanism and a second grinding disc (421), the second driving mechanism and the The first driving mechanism has the same structure, and the second driving mechanism drives the second grinding disc (421) to rotate; the second grinding disc (421) is a non-woven grinding disc.
4. The grinding device according to claim 3, characterized in that: the number of the hydraulic cylinders (300) is 2, and the two hydraulic cylinders (300) are symmetrically arranged with respect to the center of the bottom surface of the frame body (310).
5. The grinding device according to claim 3, characterized in that: the two side walls of the first push block (512) slide against the groove walls of the first guide groove (210); the second push block The two side walls of (522) slide against the groove walls of the second guide groove (220); the two side walls of the third push block (531) abut against the groove walls of the third guide groove (230). The groove walls slide; the two side walls of the fourth push block (541) slide against the groove walls of the fourth guide groove (240).
6. The grinding device according to claim 3, wherein the first guide groove (210) and the second guide groove (220) have the same structure, and the first push block (512) and the second guide groove (220) have the same structure. The push block (522) has the same structure, the first linear slide table (510) and the second linear slide table (520) have the same structure, the first push rod motor (511) and the second push rod The motor (521) has the same structure.