Seal grinding machine

Abstract

The utility model relates to the technical field of seal grinding machines, in particular to a seal grinding machine which comprises a grinding table, the upper end face of the grinding table is fixedly connected with a first supporting plate, and the upper end face of the first supporting plate is slidably connected with a second supporting plate through two first limiting sliding rails; a seal needing to be ground is clamped and fixed through the seal clamping mechanism, the drive mechanism drives the grinding belt to rotate to grind the seal flatly, the seal clamping mechanism drives the seal to rotate and meanwhile cooperates with the cam swing mechanism to drive the second servo motor to swing front and back, and therefore the ground face of the seal is fully ground; and the driving mechanism is adjusted before the seal is polished, so that the pressing angle of the polishing belt is adjusted through the driving mechanism, then the inclination angle of the polishing face of the seal is adjusted, and then the situation that the polishing face of the seal is inclined after the seal is polished is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of seal grinding machines, in particular to a seal grinding machine. Background Art

[0002] Seals are objects that represent identity by engraving specific characters. They are widely used in modern scenarios such as signing contracts.

[0003] Before carving characters on a seal, the carved surface needs to be smoothed so that the carved characters can be clearly printed when the seal is coated with paint. Currently, most seal grinding operations are done manually. Manual grinding is not only inefficient, but also prone to tilting and burrs on the seal after manual grinding. For this reason, we propose a seal grinding machine. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a seal grinding machine.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a seal grinding machine includes a grinding table, the upper end surface of the grinding table is fixedly connected to a first support plate, the upper end surface of the first support plate is slidably connected to a second support plate via two first limiting slide rails, the upper end surface of the second support plate is slidably connected to a third support plate via two second limiting slide rails, the rear part of the upper end surface of the third support plate is fixedly connected to a back plate, a grinding belt for grinding seals is provided on the front side of the back plate, a first cylinder is fixedly connected between the rear end surface of the second support plate and the rear inner wall of the grinding table, and further includes:

[0006] A driving mechanism is provided between the polishing belt and the back plate to achieve tension support and drive the polishing belt to move and polish the seal;

[0007] The cam swing mechanism is arranged between the third support plate and the second support plate to realize the reciprocating swing of the polishing belt to polish the seal

[0008] The seal clamping mechanism is arranged on the lower side of the polishing belt, and is used to fix the seal and realize the rotary polishing of the seal.

[0009] Preferably, the driving mechanism includes a first servo motor, the first servo motor is fixedly connected to the rear end face of the back plate, and the output end of the first servo motor passes through the back plate and is fixedly connected to the active roller, the front end face of the back plate is rotatably connected to two driven rollers, the front end face of the back plate is rotatably hinged with a first connecting plate, the front end face of the first connecting plate is rotatably connected to a tensioning roller, the grinding belt is sleeved on the circumferential surfaces of the tensioning roller, the active roller and the two driven rollers, and the tensioning roller, the active roller and the two driven rollers are connected by a grinding belt transmission, the first connecting plate A hydraulic telescopic rod is rotatably hinged between the back plate to support the tensioning roller to tension the grinding belt. The front end face of the back plate is fixedly connected to the fourth connecting plate, the lower end face of the fourth connecting plate is fixedly connected to the second cylinder, and the output end of the second cylinder is fixedly connected to the fixing plate, and the lower end face of the fixing plate is connected to a pressing plate for pressing the grinding belt through two limit columns. Leveling bolts are threaded through the four corners of the upper end face of the fixing plate, and the lower end faces of the four leveling bolts are all against the upper surface of the pressing plate to adjust the inclination angle of the pressing plate.

[0010] Preferably, the cam rocking mechanism includes a second connecting plate, the second connecting plate is fixedly connected to the rear end face of the back plate, the lower end face of the second connecting plate is fixedly connected to a second servo motor, the output end of the second servo motor is fixedly connected to a turntable, the lower end face of the turntable is fixedly connected to a connecting rod at an eccentric point, the upper end face of the second support plate is rotatably hinged to a third connecting plate through a positioning rod, and the connecting rod rotates in the third connecting plate.

[0011] Preferably, the seal clamping mechanism includes a fourth support plate, which is fixedly connected between the left and right inner walls of the polishing table, the upper end face of the fourth support plate is fixedly connected to a third servo motor, the output end of the third servo motor is fixedly connected to a third cylinder, the output end of the third cylinder is fixedly connected to a clamping tube, the upper end face of the polishing table is fixedly connected to a connecting column, the upper and lower limit rotation connections of the connecting column are connected to a round tube, and the lower end face of the round tube passes through the polishing table, the clamping tube is rotatably connected to the round tube, and the upper end face of the clamping tube is chiseled with four slots to realize up and down movement to cooperate with the round tube to tighten and clamp the seal.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this solution, the seal to be polished is clamped and fixed by the seal clamping mechanism, and the polishing belt is driven to rotate by the driving mechanism to polish the seal. The seal is driven to rotate by the seal clamping mechanism and the second servo motor is driven to swing back and forth in cooperation with the cam swinging mechanism, so that the polishing surface of the seal is fully polished, which is beneficial to avoid the seal having burrs after polishing. Before polishing the seal, the driving mechanism is adjusted to adjust the pressing angle of the polishing belt by the driving mechanism, and then the inclination angle of the polishing surface of the seal is adjusted, which is beneficial to avoid the polishing surface of the seal from tilting after polishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 for Figure 1 A magnified view of point A;

[0016] Figure 3 This is a three-dimensional diagram of the first servo motor of the present invention;

[0017] Figure 4 for Figure 3 Enlarged view of point B;

[0018] Figure 5 This is a three-dimensional diagram of the connection column of the utility model;

[0019] Figure 6 This is a three-dimensional cross-sectional view of the connecting column of the utility model.

[0020] In the figure: 1. grinding table; 2. first support plate; 3. first limiting slide rail; 4. second support plate; 5. second limiting slide rail; 6. third support plate; 7. back plate; 8. active roller; 9. first servo motor; 10. driven roller; 11. tensioning roller; 12. first connecting plate; 13. hydraulic telescopic rod; 14. grinding belt; 15. first cylinder; 16. second connecting plate; 17. second servo motor; 18. turntable; 19. connecting rod; 20. third connecting plate; 21. positioning rod; 22. fourth connecting plate; 23. second cylinder; 24. fixing plate; 25. pressing plate; 26. leveling bolt; 27. limiting column; 28. connecting column; 29. ​​round tube; 30. clamping tube; 31. notch; 32. third cylinder; 33. third servo motor; 34. fourth support plate. DETAILED DESCRIPTION

[0021] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0022] like Figures 1-6The seal grinding machine shown includes a grinding table 1, the upper end surface of the grinding table 1 is fixedly connected to a first support plate 2, the upper end surface of the first support plate 2 is slidably connected to a second support plate 4 via two first limiting slide rails 3, the upper end surface of the second support plate 4 is slidably connected to a third support plate 6 via two second limiting slide rails 5, the rear portion of the upper end surface of the third support plate 6 is fixedly connected to a back plate 7, a grinding belt 14 for grinding seals is provided on the front side of the back plate 7, a first cylinder 15 is fixedly connected between the rear end surface of the second support plate 4 and the rear inner wall of the grinding table 1, and further includes:

[0023] The driving mechanism is arranged between the polishing belt 14 and the back plate 7 to achieve tension support and drive the polishing belt 14 to move and polish the seal;

[0024] Cam swing mechanism, cam swing mechanism is set between the third support plate 6 and the second support plate 4 to realize the grinding belt 14 to swing back and forth to grind the seal

[0025] The seal clamping mechanism is arranged on the lower side of the grinding belt 14, and is used to fix the seal and realize the rotation grinding of the seal.

[0026] During operation, in this scheme, the seal to be polished is clamped and fixed by the seal clamping mechanism, and the polishing belt 14 is driven to rotate by the driving mechanism to achieve the polishing of the seal. The seal is driven to rotate by the seal clamping mechanism and the second servo motor 17 is driven to swing back and forth in cooperation with the cam swinging mechanism, so that the polishing surface of the seal is fully polished, which is beneficial to avoid the seal having burrs after polishing. Before polishing the seal, the driving mechanism is adjusted to achieve the adjustment of the pressing angle of the polishing belt 14 by the driving mechanism, thereby achieving the adjustment of the inclination angle of the polishing surface of the seal, which is beneficial to avoid the polishing surface of the seal from tilting after polishing.

[0027] Specifically, the driving mechanism includes a first servo motor 9, which is fixedly connected to the rear end face of the back plate 7, and the output end of the first servo motor 9 passes through the back plate 7 and is fixedly connected to the active roller 8, the front end face of the back plate 7 is rotatably connected to two driven rollers 10, the front end face of the back plate 7 is rotatably hinged with a first connecting plate 12, the front end face of the first connecting plate 12 is rotatably connected to a tensioning roller 11, a grinding belt 14 is sleeved on the circumferential surface of the tensioning roller 11, the active roller 8 and the two driven rollers 10, and the tensioning roller 11, the active roller 8 and the two driven rollers 10 are connected by the grinding belt 14, the first connecting plate 12 and the back plate A hydraulic telescopic rod 13 is rotatably hinged between 7 to support the tensioning roller 11 to tension the grinding belt 14. The front end face of the back plate 7 is fixedly connected to the fourth connecting plate 22, and the lower end face of the fourth connecting plate 22 is fixedly connected to the second cylinder 23. The output end of the second cylinder 23 is fixedly connected to the fixed plate 24. The lower end face of the fixed plate 24 is connected to the pressing plate 25 for pressing the grinding belt 14 through two limit columns 27. The four corners of the upper end face of the fixed plate 24 are threaded with leveling bolts 26, and the lower end faces of the four leveling bolts 26 are all against the upper surface of the pressing plate 25 to adjust the inclination angle of the pressing plate 25.

[0028] During operation, when the seal needs to be polished, first fix the seal, rotate and adjust the four leveling bolts 26 so that the lower end surface of the pressing plate 25 is parallel to the polishing surface of the seal, support the polishing belt 14 through the active roller 8, the tensioning roller 11 and the two driven rollers 10, and tighten the polishing belt 14 through the hydraulic telescopic rod 13, so that the polishing belt 14 polishes the seal in a taut state, turn on the first servo motor 9, and the output end of the first servo motor 9 rotates to drive the active roller 8 to rotate, thereby driving the polishing belt 14 to move, turn on the second cylinder 23, and the output end of the second cylinder 23 moves downward to drive the pressing plate 25 to squeeze the polishing belt 14, so that the polishing belt 14 moves close to the polishing surface of the seal, and finally the polishing of the seal is achieved.

[0029] Specifically, the cam rocking mechanism includes a second connecting plate 16, which is fixedly connected to the rear end face of the back plate 7, and the lower end face of the second connecting plate 16 is fixedly connected to a second servo motor 17, and the output end of the second servo motor 17 is fixedly connected to a turntable 18, and the eccentric part of the lower end face of the turntable 18 is fixedly connected to a connecting rod 19, and the upper end face of the second support plate 4 is rotatably hinged to a third connecting plate 20 through a positioning rod 21, and the connecting rod 19 rotates in the third connecting plate 20.

[0030] During operation, when polishing the seal, the second servo motor 17 is turned on, and the output end of the second servo motor 17 rotates to drive the turntable 18 to rotate, thereby driving the connecting rod 19 at the eccentric position to make a circular motion, and then the third connecting plate 20 is used to swing back and forth. Since the position of the second support plate 4 is fixed, the back plate 7 swings back and forth during the polishing process, thereby realizing the polishing belt 14 to swing back and forth with a small amplitude during the polishing process to polish the seal, which is convenient for cooperating with the seal's rotation to polish off the burrs at the corners of the seal.

[0031] Specifically, the seal clamping mechanism includes a fourth support plate 34, which is fixedly connected between the left and right inner walls of the polishing table 1. The upper end surface of the fourth support plate 34 is fixedly connected to the third servo motor 33, the output end of the third servo motor 33 is fixedly connected to the third cylinder 32, the output end of the third cylinder 32 is fixedly connected to the clamping tube 30, the upper end surface of the polishing table 1 is fixedly connected to the connecting column 28, and the upper and lower limit rotation connection of the connecting column 28 is connected to the circular tube 29, and the lower end surface of the circular tube 29 passes through the polishing table 1, the clamping tube 30 is rotatably connected to the circular tube 29, and the upper end surface of the clamping tube 30 is chiseled with four slots 31 to realize the up and down movement to cooperate with the circular tube 29 to tighten and clamp the seal.

[0032] During operation, when the seal needs to be clamped, the third cylinder 32 is opened, so that the output end of the third cylinder 32 moves upward, thereby driving the clamping tube 30 to move upward in the circular tube 29, and the seal is placed in the clamping tube 30. The third cylinder 32 is opened to make the output end of the third cylinder 32 move downward. Due to the four notches 31 provided on the clamping tube 30, the clamping tube 30 is squeezed toward the middle by the circular tube 29 during the downward movement in the circular tube 29, thereby clamping and fixing the seal. During the polishing process of the seal, the third servo motor 33 is turned on, and the output end of the third servo motor 33 rotates to drive the third cylinder 32 to rotate. The third cylinder 32 drives the clamping tube 30 to rotate, and the clamping tube 30 drives the seal to rotate. Under the action of the extrusion friction force, the clamping tube 30 drives the circular tube 29 to rotate in the connecting column 28, and finally the rotation clamping and fixing of the seal is realized.

[0033] Working principle of this utility model:

[0034] When the seal needs to be polished, the third cylinder 32 is turned on, so that the output end of the third cylinder 32 moves upward, thereby driving the clamping tube 30 to move upward in the circular tube 29, and the seal is placed in the clamping tube 30. The third cylinder 32 is turned on to make the output end of the third cylinder 32 move downward. Due to the four notches 31 provided on the clamping tube 30, the clamping tube 30 is squeezed toward the middle by the circular tube 29 during the downward movement in the circular tube 29, thereby achieving clamping and fixing of the seal. In the process of polishing the seal, the third servo motor 33 is turned on, and the output end of the third servo motor 33 rotates to drive the third cylinder 32 to rotate. The third cylinder 32 drives the clamping tube 30 to rotate, and the clamping tube 30 drives the seal to rotate. Under the action of the extrusion friction force, the clamping tube 30 drives the circular tube 29 to rotate in the connecting column 28, and finally the rotation clamping and fixing of the seal is achieved. The second servo motor 17 is turned on, and the output end of the second servo motor 17 rotates to drive the turntable 18 to rotate, thereby driving the connecting rod 19 at the eccentric position to move in a circular motion. The second support plate 4 is fixed in position, so the back plate 7 swings back and forth during the polishing process, thereby realizing that the polishing belt 14 swings back and forth in a small amplitude to polish the seal, thereby cooperating with the seal to rotate and polish off the burrs at the corners of the seal, and rotating and adjusting the four leveling bolts 26 so that the lower end surface of the pressing plate 25 is parallel to the polishing surface of the seal, and the polishing belt 14 is supported by the active roller 8, the tensioning roller 11 and the two driven rollers 10, and the polishing belt 14 is tensioned by the hydraulic telescopic rod 13, so that the polishing belt 14 polishes the seal in a taut state, and the first servo motor 9 is turned on, and the output end of the first servo motor 9 rotates to drive the active roller 8 to rotate, thereby driving the polishing belt 14 to move, and the second cylinder 23 is turned on, and the output end of the second cylinder 23 moves downward to drive the pressing plate 25 to squeeze the polishing belt 14, so that the polishing belt 14 moves close to the polishing surface of the seal, and finally the polishing of the seal is achieved.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention as claimed, and the scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A seal grinding machine, comprising a grinding table (1), characterized in that: The upper end surface of the polishing table (1) is fixedly connected to a first support plate (2), the upper end surface of the first support plate (2) is slidably connected to a second support plate (4) via two first limiting slide rails (3), the upper end surface of the second support plate (4) is slidably connected to a third support plate (6) via two second limiting slide rails (5), the rear portion of the upper end surface of the third support plate (6) is fixedly connected to a back plate (7), a polishing belt (14) for polishing a seal is provided on the front side of the back plate (7), a first cylinder (15) is fixedly connected between the rear end surface of the second support plate (4) and the rear inner wall of the polishing table (1), and further comprises: A driving mechanism, the driving mechanism being arranged between the polishing belt (14) and the back plate (7) to achieve tension support and drive the polishing belt (14) to move and polish the seal; A cam swing mechanism is provided between the third support plate (6) and the second support plate (4) to enable the polishing belt (14) to swing back and forth to polish the seal. A seal clamping mechanism is provided on the lower side of the grinding belt (14), and is used for fixing the seal and realizing rotary grinding of the seal.

2. A seal grinding machine according to claim 1, characterized in that: The driving mechanism includes a first servo motor (9), the first servo motor (9) is fixedly connected to the rear end face of the back plate (7), and the output end of the first servo motor (9) passes through the back plate (7) and is fixedly connected to the active roller (8), the front end face of the back plate (7) is rotatably connected to two driven rollers (10), the front end face of the back plate (7) is rotatably hinged to a first connecting plate (12), the front end face of the first connecting plate (12) is rotatably connected to a tensioning roller (11), the grinding belt (14) is sleeved on the circumferential surface of the tensioning roller (11), the active roller (8) and the two driven rollers (10), and the tensioning roller (11), the active roller (8) and the two driven rollers (10) are connected by the grinding belt (14), the first connecting plate (12) and the back plate are connected by the driving belt (14), and the first connecting plate (12) and the back plate are connected by the driving belt (14). A hydraulic telescopic rod (13) is rotatably hinged between the plates (7) to support the tensioning roller (11) to tension the grinding belt (14); the front end surface of the back plate (7) is fixedly connected to a fourth connecting plate (22); the lower end surface of the fourth connecting plate (22) is fixedly connected to a second cylinder (23); the output end of the second cylinder (23) is fixedly connected to a fixed plate (24); the lower end surface of the fixed plate (24) is connected to a pressing plate (25) for pressing the grinding belt (14) through two limiting columns (27); the four corners of the upper end surface of the fixed plate (24) are threadedly connected with leveling bolts (26); the lower end surfaces of the four leveling bolts (26) are all against the upper surface of the pressing plate (25) to adjust the inclination angle of the pressing plate (25).

3. A seal grinding machine according to claim 1, characterized in that: The cam rocking mechanism comprises a second connecting plate (16), the second connecting plate (16) is fixedly connected to the rear end face of the back plate (7), the lower end face of the second connecting plate (16) is fixedly connected to a second servo motor (17), the output end of the second servo motor (17) is fixedly connected to a turntable (18), the lower end face of the turntable (18) is fixedly connected to a connecting rod (19) at an eccentric position, the upper end face of the second support plate (4) is rotatably hinged to a third connecting plate (20) via a positioning rod (21), and the connecting rod (19) rotates in the third connecting plate (20).

4. A seal grinding machine according to claim 1, characterized in that: The seal clamping mechanism includes a fourth support plate (34), the fourth support plate (34) is fixedly connected between the left and right inner walls of the polishing table (1), the upper end surface of the fourth support plate (34) is fixedly connected to a third servo motor (33), the output end of the third servo motor (33) is fixedly connected to a third cylinder (32), the output end of the third cylinder (32) is fixedly connected to a clamping tube (30), the upper end surface of the polishing table (1) is fixedly connected to a connecting column (28), the upper and lower limit rotation connection of the connecting column (28) is connected to a circular tube (29), and the lower end surface of the circular tube (29) passes through the polishing table (1), the clamping tube (30) is rotatably connected to the circular tube (29), and the upper end surface of the clamping tube (30) is chiseled with four notches (31) to achieve up and down movement to cooperate with the circular tube (29) to tighten and clamp the seal.

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