Metal workpiece polishing device for electromechanical machining

Abstract

The invention relates to the technical field of electromechanical machining, and discloses a metal workpiece polishing device for electromechanical machining, which comprises a base provided with a vertical plate, the outer wall of one side of the base is fixedly connected with a fixing column, a clamping avoiding mechanism is arranged on the fixing column, a rotating mechanism is arranged on the fixing column, and a fixing plate is mounted on the rotating mechanism. A through groove is formed in the fixing plate, C-shaped pipes are fixedly connected to the inner walls of the two ends of the through groove, the openings of the two C-shaped pipes are opposite, pressing columns are arranged at the openings of the two C-shaped pipes, and a plurality of first connecting springs are fixedly connected between the pressing columns and the inner walls of the C-shaped pipes at equal intervals. The aluminum oxide abrasive belt is clamped through the C-shaped pipe and the pressing column, the aluminum oxide abrasive belt is tightly attached to the inner wall and the outer wall of a metal pipe workpiece, the inner surface and the outer surface are ground at the same time through the rotating mechanism, meanwhile, the aluminum oxide abrasive belt is pulled to move in a reciprocating mode during grinding, and therefore the grinding efficiency and the grinding effect are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electromechanical processing, and in particular to a metal workpiece grinding device for electromechanical processing. Background Art

[0002] Metal parts refer to metal gaskets, metal blocks, metal rods, metal tubes, etc. of various specifications and shapes made of metal materials. Due to manufacturing process defects and other reasons, the plates and pipes of large-diameter thick-walled welded pipes usually have burrs and concave-convex points of varying degrees on the inner and outer surfaces. Therefore, it is necessary to grind the inner and outer walls of the tubular metal workpieces.

[0003] Chinese patent publication number CN115922464A discloses a grinding device for metal pipe processing, which relates to a metal pipe processing device, including a support mechanism, a control device is provided on the surface of the support mechanism, the control device is fixedly connected to the support mechanism, and a cooling mechanism is further provided on the surface of the support mechanism, the cooling mechanism is fixedly connected to the support mechanism; it also includes a clamping mechanism and a grinding mechanism. The control device allows a worker to directly grind the metal pipe by operating the control device, and the prime mover component and the adjustment component are provided, so that the grinding device can grind metal pipes of different lengths and inner diameters. By providing an electric telescopic shaft in the grinding component, the grinding roller can perform all-round grinding on the inner wall of the metal pipe, and by providing four grinding rollers, the grinding efficiency and the grinding quality of the inner wall of the metal pipe are improved to a certain extent. However, often both the inner and outer walls of the metal pipe need to be polished, and the above-mentioned device can only grind the inner wall of the metal pipe, and cannot grind the inner and outer walls of the metal pipe at the same time, resulting in low grinding efficiency.

[0004] In view of this, the present invention provides a metal workpiece grinding device for electromechanical processing to solve the problems existing in the above-mentioned prior art. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a metal workpiece grinding device for electromechanical processing.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A metal workpiece grinding device for electromechanical processing comprises a base provided with a vertical plate, a fixed column fixedly connected to the outer wall of one side of the base, and a clamping and avoiding mechanism is provided on the fixed column, a rotating mechanism is provided on the fixed column, and a fixed plate is installed on the rotating mechanism, a through groove is provided on the fixed plate, and the inner walls at both ends of the through groove are fixedly connected to C-tubes, the openings of the two C-tubes are opposite, and the openings of the two C-tubes are provided with pressing columns, and a plurality of connecting springs are fixedly connected to the pressing columns and the inner walls of the C-tubes at equal distances, and an alumina sanding belt is clamped between the pressing columns and the openings of the C-tubes.

[0008] Furthermore, the clamping and avoidance mechanism includes a fixed plate, which is fixedly connected to the outer wall of the middle part of the fixed column, and the outer wall of the fixed plate is slidably connected with multiple sliding rods at equal distances. An electric push rod is provided on one side of the sliding rod, and a connecting plate is fixedly connected between the telescopic end of the electric push rod and one end of the corresponding sliding rod.

[0009] Furthermore, a plurality of sliding grooves are provided at equal distances on the outer wall of the fixed column, and an edge is provided at one end of the fixed column. The inner walls of the sliding grooves are slidably connected with sliders, and the sliders are fixedly connected to the other ends of the corresponding sliding rods. A plurality of clamping plates are provided at equal distances on the outside of the fixed column, and connecting plates are hinged between the clamping plates and the outer walls of the edges and the sliders.

[0010] Furthermore, the rotating mechanism includes a rotating cylinder, which is rotatably connected to the outer wall of the fixed column, and the outer wall of the rotating cylinder is fixedly connected to a driven gear. A rotating motor 2 is provided on the outer wall of one side of the vertical plate, and the output shaft end of the rotating motor 2 is fixedly connected to a driving gear that meshes with the driven gear.

[0011] Furthermore, a rotating motor 1 is provided on the outer wall on the other side of the top of the base, and the output shaft end of the rotating motor 1 is fixedly connected to a deflection plate, a hydraulic rod is provided on the deflection plate, and the telescopic end of the hydraulic rod is fixedly connected to a positioning block.

[0012] Furthermore, both ends of the pressing column are provided with clamping circular grooves, and an arc groove is opened on the inner wall of one side of the clamping circular groove, and a vertical surface is provided on the other side of the clamping circular groove, and a threaded rod is provided on the vertical surface.

[0013] Furthermore, one end of the threaded rod is fixedly connected to a knob, and the other end of the threaded rod is rotatably connected to an arc-shaped clamping block. The outer wall of the arc-shaped clamping block is provided with anti-slip grooves, and the arc-shaped clamping block is slidably connected to the inner wall of the bottom of the clamping circular groove.

[0014] Furthermore, both ends of the pressing column are provided with installation cavities, and the inner wall of one side of the installation cavity is provided with an electromagnet, the other side of the installation cavity is slidably connected to a telescopic rod, and one end of the telescopic rod is fixedly connected to the clamping circular groove.

[0015] Furthermore, the other end of the telescopic rod is fixedly connected to a magnetic plate, and a connecting spring 2 is fixedly connected between the magnetic plate and the electromagnet. A through hole is provided at one end of the telescopic rod fixedly connected to the clamping circular groove, and one end of the threaded rod passes through the through hole and is rotatably connected to the arc-shaped clamping block.

[0016] The beneficial effects of the present invention are:

[0017] The present invention clamps the alumina abrasive belt through a C-shaped tube and a pressing column, and makes the alumina abrasive belt close to the inner and outer walls of the metal tube workpiece, and uses a rotating mechanism to grind the inner and outer surfaces simultaneously. At the same time, the alumina abrasive belt is pulled back and forth during grinding, thereby significantly improving the grinding efficiency and grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic structural diagram of a metal workpiece grinding device for electromechanical processing;

[0019] Figure 2 This is a schematic diagram of the fixed column structure of a metal workpiece grinding device for electromechanical processing;

[0020] Figure 3 This is a schematic diagram of the external structure of a rotating drum of a metal workpiece grinding device for electromechanical processing;

[0021] Figure 4 This is a schematic diagram of the side view of a C-shaped tube structure of a metal workpiece grinding device for electromechanical processing;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of a pressing column of a metal workpiece grinding device for electromechanical processing;

[0023] Figure 6 This is a schematic diagram of the clamping circular groove structure of a metal workpiece grinding device for electromechanical processing.

[0024] In the figure: 1. base; 2. rotating motor 1; 3. deflection plate; 4. hydraulic rod; 5. positioning block; 6. rotating cylinder; 7. fixed column; 8. vertical plate; 9. rotating motor 2; 10. driving gear; 11. connecting plate; 12. electric push rod; 13. sliding rod; 14. clamping plate; 15. sliding groove; 16. fixed plate; 17. connecting plate; 18. slider; 19. C-tube; 20. through groove; 21. fixed plate; 22. driven gear; 23. clamping circular groove; 24. pressing column; 25. alumina sanding belt; 26. telescopic rod; 27. connecting spring 1; 28. electromagnet; 29. ​​magnetic plate; 30. mounting cavity; 31. through hole; 32. connecting spring 2; 33. vertical surface; 34. knob; 35. threaded rod; 36. arc clamping block; 37. arc groove. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0026] Reference Figure 1 、 Figure 3 、 Figure 4 The present invention relates to a metal workpiece grinding device for electromechanical processing, comprising a base 1 provided with a vertical plate 8, a fixed column 7 is fixedly connected to the outer wall of one side of the base 1, and a clamping avoidance mechanism is provided on the fixed column 7, a rotating mechanism is provided on the fixed column 7, and a fixed plate 21 is installed on the rotating mechanism, a through slot 20 is opened on the fixed plate 21, and the inner walls of both ends of the through slot 20 are fixedly connected to a C-shaped tube 19, the openings of the two C-shaped tubes 19 are opposite, and a pressing column 24 is provided at the openings of the two C-shaped tubes 19, and a plurality of connecting springs 27 are fixedly connected to the pressing column 24 and the inner wall of the C-shaped tube 19 at an equal distance, and an aluminum oxide sanding belt 25 is clamped between the pressing column 24 and the opening of the C-shaped tube 19. When it is necessary to grind the metal tube workpiece, the aluminum oxide sanding belt 25 is first used to apply force to the pressing columns 24 at the openings of the two C-shaped tubes 19 away from the vertical plate 8, so that the distance between the ends of the two pressing columns 24 away from the vertical plate 8 is increased, and then the pressing columns 24 are moved closer to the fixed column 7. The pressing column 24 at the opening of the C-tube 19 and the fixed column 7 are inserted into the metal tube workpiece together. At the same time, the pressing column 24 at the opening of the other C-tube 19 will be in the metal tube workpiece. At this time, no force is applied to the two pressing columns 24. Under the action of multiple connecting springs 27, the pressing column 24 can make the aluminum oxide sanding belt 25 close to the inner and outer walls of the metal tube workpiece, and then the metal tube workpiece is moved toward the vertical plate 8 until the aluminum oxide sanding belts 25 on the two pressing columns 24 are completely in contact with the inner and outer walls of the metal tube workpiece, and then the metal tube workpiece is clamped and fixed by the clamping and avoidance mechanism on the fixed column 7. After clamping and fixing, the fixing plate 21 is made to perform circular motion around the fixing column 7 through the rotating mechanism. The fixing plate 21 moves synchronously with the C-tube 19 and the pressing column 24, so that the aluminum oxide sanding belt 25 clamped between the pressing column 24 and the opening of the C-tube 19 can grind the inner and outer walls of the metal tube workpiece at the same time, significantly improving the grinding efficiency.

[0027] Reference Figure 2 As a further solution in the present invention, the clamping and avoidance mechanism includes a fixed plate 16, which is fixedly connected to the outer wall of the middle part of the fixed column 7, and a plurality of slide rods 13 are slidably connected to the outer wall of the fixed plate 16 at equal distances. An electric push rod 12 is provided on one side of the slide rod 13, and a connecting plate 11 is fixedly connected between the telescopic end of the electric push rod 12 and one end of the corresponding slide rod 13.

[0028] Reference Figure 2As a further solution in the present invention, a plurality of sliding grooves 15 are equidistantly provided on the outer wall of the fixed column 7, and an edge is provided at one end of the fixed column 7. The inner walls of the sliding grooves 15 are slidably connected with sliders 18, and the sliders 18 are fixedly connected to the other ends of the corresponding slide rods 13. A plurality of clamping plates 14 are equidistantly provided on the outside of the fixed column 7, and a connecting plate 17 is hinged between the clamping plates 14 and the outer walls of the edge and the sliders 18. When the alumina sanding belts 25 on the two pressing columns 24 are in full contact with the inner and outer walls of the metal pipe workpiece, each electric push rod 12 is started, and each electric push rod 12 moves the sliders 18 in the sliding grooves 15 toward the edge of the fixed column 7 through the corresponding slide rods 13. Under the action of the connecting plate 17, each clamping plate 14 is close to the metal pipe. The inner wall of the workpiece, until each clamping plate 14 is in close contact with the inner wall of the metal tube workpiece, and when the alumina abrasive belt 25 is grinding the inner and outer walls of the metal tube workpiece at the same time, when the alumina abrasive belt 25 inside the metal tube workpiece is close to one of the clamping plates 14, the corresponding electric push rod 12 will start again, and the slider 18 is moved close to the fixed disk 16 through the slide rod 13, so that the clamping plate 14 is moved downward through the connecting plate 17, so that the alumina abrasive belt 25 clamped between the pressing column 24 and the opening of the C-tube 19 can pass through the gap between the clamping plate 14 and the inner wall of the metal tube workpiece, while the other three remain unchanged, so that when the inner and outer walls of the metal tube workpiece are ground simultaneously, the clamping avoidance mechanism can automatically avoid and will not hinder the grinding work.

[0029] Reference Figure 3 As a further solution in the present invention, the rotating mechanism includes a rotating cylinder 6, which is rotatably connected to the outer wall of the fixed column 7, and the outer wall of the rotating cylinder 6 is fixedly connected to a driven gear 22. A rotating motor 29 is provided on the outer wall of one side of the vertical plate 8, and the output shaft end of the rotating motor 29 is fixedly connected to a driving gear 10 meshing with the driven gear 22. The rotating motor 29 can rotate the rotating cylinder 6 through the meshing driving gear 10 and the driven gear 22, thereby causing the fixed plate 21 to perform a circular motion around the fixed column 7.

[0030] Reference Figure 1 As a further solution in the present invention, a rotating motor 2 is provided on the outer wall on the other side of the top of the base 1, and the output shaft end of the rotating motor 2 is fixedly connected to a deflection plate 3, a hydraulic rod 4 is provided on the deflection plate 3, and the telescopic end of the hydraulic rod 4 is fixedly connected to a positioning block 5. After clamping and fixing the metal pipe workpiece, the rotating motor 2 moves the deflection plate 3 to a vertical state, and then when the hydraulic rod 4 is started, the positioning block 5 approaches the fixed column 7 until it is tightly attached to a section of the outer wall of the fixed column 7, thereby improving the stability of the fixed column 7 during grinding.

[0031] Working principle: When a metal pipe workpiece needs to be polished, first, the pressing posts 24 at the openings of the two C-shaped tubes 19 are forced away from the ends of the vertical plate 8 by the aluminum oxide sanding belt 25, so that the distance between the ends of the two pressing posts 24 away from the vertical plate 8 is increased, and then the pressing post 24 at the opening of the C-shaped tube 19 close to the fixed post 7 is inserted into the metal pipe workpiece together with the fixed post 7. At the same time, the pressing post 24 at the opening of the other C-shaped tube 19 will be in the metal pipe workpiece. At this time, no force is applied to the two pressing posts 24, thereby connecting the multiple springs 27. Under the action of the pressing column 24, the alumina abrasive belt 25 can be tightly attached to the inner and outer walls of the metal tube workpiece, and then the metal tube workpiece is moved toward the vertical plate 8 until the alumina abrasive belts 25 on the two pressing columns 24 are completely in contact with the inner and outer walls of the metal tube workpiece. At this time, each electric push rod 12 is started, and each electric push rod 12 moves the slider 18 in the sliding groove 15 toward the edge of the fixed column 7 through the corresponding slide rod 13. Under the action of the connecting plate 17, each clamping plate 14 is close to the inner wall of the metal tube workpiece until each clamping plate 14 is in contact with the metal tube workpiece. The inner wall is tightly attached to the metal tube workpiece, so that the metal tube workpiece can be clamped and fixed. After clamping and fixing, the rotating motor 29 can rotate the rotating cylinder 6 through the meshing driving gear 10 and the driven gear 22, so that the fixing plate 21 can make a circular motion around the fixing column 7. The fixing plate 21 moves synchronously with the C-shaped tube 19 and the pressing column 24, so that the aluminum oxide sanding belt 25 clamped between the pressing column 24 and the opening of the C-shaped tube 19 can grind the inner and outer walls of the metal tube workpiece at the same time. When the aluminum oxide sanding belt 25 grinds the inner and outer walls of the metal tube workpiece at the same time, when the inner wall of the metal tube workpiece is polished by the aluminum oxide sanding belt 25, the inner wall of the metal tube workpiece is polished by the aluminum oxide sanding belt 25. When the alumina abrasive belt 25 approaches one of the clamping plates 14, the corresponding electric push rod 12 will start again, and the slider 18 will approach the fixed plate 16 through the slide rod 13, so that the clamping plate 14 will move downward through the connecting plate 17, so that the alumina abrasive belt 25 clamped between the pressing column 24 and the opening of the C-tube 19 can pass through the gap between the clamping plate 14 and the inner wall of the metal tube workpiece, while the other three remain unchanged. Therefore, when the inner and outer walls of the metal tube workpiece are polished simultaneously, the clamping avoidance mechanism can automatically avoid and will not hinder the polishing work.

[0032] Reference Figure 3 and Figure 6 As a further solution in the present invention, both ends of the pressing column 24 are provided with clamping circular grooves 23, and an arc groove 37 is opened on the inner wall of one side of the clamping circular groove 23, and a vertical surface 33 is provided on the other side of the clamping circular groove 23, and a threaded rod 35 is provided on the vertical surface 33.

[0033] Reference Figure 6As a further solution in the present invention, one end of the threaded rod 35 is fixedly connected to a knob 34, and the other end of the threaded rod 35 is rotatably connected to an arc-shaped clamping block 36. The outer wall of the arc-shaped clamping block 36 is provided with anti-slip grooves, and the arc-shaped clamping block 36 is slidably connected to the inner wall of the bottom of the clamping circular groove 23, and the two ends of the alumina abrasive belt 25 are respectively extended into the corresponding clamping circular groove 23, and then the threaded rod 35 is turned by the knob 34. The length of the threaded rod 35 extended into the clamping circular groove 23 becomes longer, pushing the arc-shaped clamping block 36 into the arc-shaped groove 37, so that the alumina abrasive belt 25 is located between the arc-shaped clamping block 36 and the arc-shaped groove 37, thereby fixing the two ends of the alumina abrasive belt 25 to prevent the alumina abrasive belt 25 from detaching during grinding.

[0034] Reference Figure 5 As a further solution in the present invention, mounting cavities 30 are provided at both ends of the pressing column 24, and an electromagnet 28 is provided on the inner wall of one side of the mounting cavity 30. A telescopic rod 26 is slidably connected to the other side of the mounting cavity 30, and one end of the telescopic rod 26 is fixedly connected to the clamping circular groove 23.

[0035] Reference Figure 5 As a further solution in the present invention, the other end of the telescopic rod 26 is fixedly connected to a magnetic plate 29, and a connecting spring 23 is fixedly connected between the magnetic plate 29 and the electromagnet 28. A through hole 31 is provided at one end of the telescopic rod 26 that is fixedly connected to the clamping groove 23, and one end of the threaded rod 35 passes through the through hole 31 and is rotatably connected to the arc-shaped clamping block 36. When grinding the inner and outer walls of the metal pipe workpiece, the electromagnets 28 in the mounting cavities 30 at both ends of the pressing column 24 are energized back and forth (one electromagnet 28 is energized and the other electromagnet 28 is energized), and the magnetic force generated by the energization of the electromagnet 28 repel each other with the magnetic plate 29, which can lengthen the extension length of the telescopic rod 26, so that the clamping groove 23 connected thereto is away from the pressing column 24, and the other clamping groove 23 is close to the pressing column 24. Through the above operation, the alumina abrasive belt 25 can be pulled back and forth, greatly improving the grinding effect.

[0036] Working principle: Insert the two ends of the aluminum oxide abrasive belt 25 into the corresponding clamping groove 23 respectively, then turn the threaded rod 35 through the knob 34, the length of the threaded rod 35 inserted into the clamping groove 23 becomes longer, and the arc-shaped clamping block 36 is pushed into the arc-shaped groove 37, so that the aluminum oxide abrasive belt 25 is located between the arc-shaped clamping block 36 and the arc-shaped groove 37, thereby fixing the two ends of the aluminum oxide abrasive belt 25 to prevent the aluminum oxide abrasive belt 25 from detaching during grinding, and When grinding, the electromagnets 28 in the mounting cavities 30 at both ends of the pressing column 24 are energized back and forth (one electromagnet 28 is energized and the other electromagnet 28 is energized), and the magnetic force generated by the energization of the electromagnet 28 repels the magnetic plate 29, which can lengthen the extension length of the telescopic rod 26, so that the clamping circular groove 23 connected to it is away from the pressing column 24, and the other clamping circular groove 23 is close to the pressing column 24. Through the above operation, the aluminum oxide sanding belt 25 can be pulled back and forth, greatly improving the grinding effect.

[0037] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A metal workpiece grinding device for electromechanical processing, comprising a base (1) provided with a vertical plate (8), characterized in that: A fixing column (7) is fixedly connected to the outer wall of one side of the base (1), and a clamping and avoiding mechanism is provided on the fixing column (7), a rotating mechanism is provided on the fixing column (7), and a fixing plate (21) is installed on the rotating mechanism, a through slot (20) is provided on the fixing plate (21), and the inner walls at both ends of the through slot (20) are fixedly connected to a C-shaped tube (19), the openings of the two C-shaped tubes (19) are opposite, and the openings of the two C-shaped tubes (19) are both provided with a pressing column (24), and a plurality of connecting springs (27) are fixedly connected at equal distances between the pressing column (24) and the inner wall of the C-shaped tube (19), and an aluminum oxide sanding belt (25) is clamped between the pressing column (24) and the opening of the C-shaped tube (19).

2. A metal workpiece grinding device for electromechanical processing according to claim 1, characterized in that: The clamping and avoiding mechanism comprises a fixed plate (16), the fixed plate (16) being fixedly connected to the outer wall of the middle portion of the fixed column (7), and a plurality of slide rods (13) being slidably connected to the outer wall of the fixed plate (16) at equal distances, an electric push rod (12) being provided on one side of each slide rod (13), and a connecting plate (11) being fixedly connected between the telescopic end of the electric push rod (12) and one end of the corresponding slide rod (13).

3. The metal workpiece grinding device for electromechanical processing according to claim 2, characterized in that: The outer wall of the fixed column (7) is provided with a plurality of sliding grooves (15) at equal distances, and an edge is provided at one end of the fixed column (7). The inner walls of the sliding grooves (15) are slidably connected with sliders (18), and the sliders (18) are fixedly connected to the other ends of the corresponding slide rods (13). The outside of the fixed column (7) is provided with a plurality of clamping plates (14) at equal distances, and connecting plates (17) are hinged between the clamping plates (14) and the outer wall of the edge and the sliders (18).

4. The metal workpiece grinding device for electromechanical processing according to claim 1, characterized in that: The rotating mechanism comprises a rotating cylinder (6), the rotating cylinder (6) being rotatably connected to the outer wall of the fixed column (7), and the outer wall of the rotating cylinder (6) being fixedly connected to a driven gear (22), a rotating motor (9) being provided on one side outer wall of the vertical plate (8), and a driving gear (10) meshing with the driven gear (22) being fixedly connected to the output shaft end of the rotating motor (9).

5. The metal workpiece grinding device for electromechanical processing according to claim 1, characterized in that: A rotating motor (2) is provided on the outer wall on the other side of the top of the base (1), and a deflection plate (3) is fixedly connected to the output shaft end of the rotating motor (2). A hydraulic rod (4) is provided on the deflection plate (3), and a positioning block (5) is fixedly connected to the telescopic end of the hydraulic rod (4).

6. The metal workpiece grinding device for electromechanical processing according to claim 1, characterized in that: Both ends of the pressing column (24) are provided with a clamping circular groove (23), and an arc groove (37) is opened on the inner wall of one side of the clamping circular groove (23); the other side of the clamping circular groove (23) is provided with a vertical surface (33), and a threaded rod (35) is provided on the vertical surface (33).

7. A metal workpiece grinding device for electromechanical machining according to claim 6, characterized in that: One end of the threaded rod (35) is fixedly connected to a knob (34), and the other end of the threaded rod (35) is rotatably connected to an arc-shaped clamping block (36). The outer wall of the arc-shaped clamping block (36) is provided with anti-slip grooves, and the arc-shaped clamping block (36) is slidably connected to the inner wall of the bottom of the clamping circular groove (23).

8. The metal workpiece grinding device for electromechanical machining according to claim 7, characterized in that: Both ends of the pressing column (24) are provided with mounting cavities (30), and an electromagnet (28) is provided on the inner wall of one side of the mounting cavity (30). The other side of the mounting cavity (30) is slidably connected to a telescopic rod (26), and one end of the telescopic rod (26) is fixedly connected to the clamping circular groove (23).

9. The metal workpiece grinding device for electromechanical processing according to claim 8, characterized in that: The other end of the telescopic rod (26) is fixedly connected to a magnetic plate (29), and a second connecting spring (32) is fixedly connected between the magnetic plate (29) and the electromagnet (28). A through hole (31) is provided at one end of the telescopic rod (26) fixedly connected to the clamping circular groove (23), and one end of the threaded rod (35) passes through the through hole (31) and is rotatably connected to the arc-shaped clamping block (36).

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