Novel safety valve automatic grinding equipment and grinding method thereof

Abstract

The invention relates to the technical field of safety valve grinding, and discloses novel safety valve automatic grinding equipment which comprises a machining table, a longitudinal displacement mechanism, a grinding mechanism and a plurality of clamping mechanisms, a stand column is fixedly connected to the middle of the top end of the machining table, and a connecting block is rotationally connected to the top of the stand column; the outer side of the connecting block is fixedly connected with a transverse displacement mechanism; the longitudinal displacement mechanism is installed on the outer side of the transverse displacement mechanism and used for adjusting the height of the grinding mechanism so that the grinding mechanism can grind the safety valve conveniently. And the grinding mechanism is mounted on the outer side of the longitudinal displacement mechanism. After the safety valve is stably clamped through the clamping mechanism, the transverse displacement mechanism is matched with the longitudinal displacement mechanism, so that the grinding mechanism is aligned to the position, needing to be ground, of the valve body, then the grinding motor is started, the valve body can be automatically ground through the grinding head, manual labor is saved, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of safety valve grinding, and particularly to a new type of automatic safety valve grinding device and its grinding method. Background Technique

[0002] A safety valve is a device used to protect pressure vessels, pipeline systems or other equipment from overpressure. It is a pressure relief device, usually designed to automatically open when the system pressure exceeds the set value, releasing part of the fluid or gas to prevent the system from overloading and causing accidents or damage. Currently, during the manufacturing process of safety valves, it is necessary to grind the valve seat and valve disc of the safety valve to ensure its sealing performance.

[0003] Traditional grinding methods mainly adopt manual operation, which has the problems of low work efficiency and high labor intensity. Moreover, during the grinding process, the grinding rod will have radial runout, resulting in unstable grinding accuracy. Therefore, the present invention provides a new type of automatic safety valve grinding device and its grinding method to solve the deficiencies existing in the prior art. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a new type of automatic safety valve grinding device and its grinding method, which solves the problems of low work efficiency, high labor intensity and unstable grinding accuracy existing in the prior art through manual grinding.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A new type of automatic safety valve grinding device includes a processing table, a longitudinal displacement mechanism, a grinding mechanism and a plurality of clamping mechanisms. A column is fixedly connected to the middle of the top of the processing table, a connecting block is rotatably connected to the top of the column, and a transverse displacement mechanism is fixedly connected to the outside of the connecting block; The longitudinal displacement mechanism is installed on the outside of the transverse displacement mechanism to adjust the height of the grinding mechanism, making it convenient to grind the safety valve; The grinding mechanism is installed on the outside of the longitudinal displacement mechanism to grind the safety valve. The grinding mechanism includes a grinding motor, the output end of the grinding motor is fixedly connected to a grinding rod, and an anti-runout component is installed on the outside of the grinding rod; The clamping mechanism is installed inside the processing table to firmly clamp the safety valve to be ground, facilitating the grinding mechanism to grind.

[0006] Preferably, the transverse displacement mechanism includes a mounting frame one, one end of the mounting frame one is fixedly connected to the outside of the connecting block, a motor one is installed at one end inside the mounting frame one, the output end of the motor one is fixedly connected to a threaded rod one, a threaded sleeve is threadedly connected to the outside of the threaded rod one, and the other end of the threaded rod one is rotatably connected to the inside of the mounting frame one.

[0007] Preferably, the longitudinal displacement mechanism includes a second mounting frame. The outside of the second mounting frame is fixedly connected to the outside of the threaded sleeve. One end of the inner side of the second mounting frame is provided with a second motor. The output end of the second motor is fixedly connected to a second threaded rod. The outside of the second threaded rod is threadedly connected to a threaded block. The other end of the second threaded rod is rotatably connected to the inner side of the second mounting frame. The outside of both the first mounting frame and the second mounting frame is rotatably connected to a turntable. One end of each of the two turntables is fixedly connected to one end of the first threaded rod and the second threaded rod respectively.

[0008] Preferably, the grinding motor is fixedly connected to the outside of the threaded block. The bottom end of the grinding rod is provided with an elastic coupling. The bottom of the elastic coupling is provided with a grinding head. Two diversion grooves are opened on the outside of the grinding head. The outside of the grinding head is movably connected to a valve body.

[0009] Preferably, the anti-vibration component includes a guide disc. The guide disc is slidably connected to the outside of the grinding rod. Two mounting grooves are opened inside the guide disc. Sliding grooves are opened on both sides of the mounting groove. A slider is slidably connected to the inside of the mounting groove. Both sides of the slider are slidably connected to the inside of the two sliding grooves. An assembly hole is opened inside the slider.

[0010] Preferably, the clamping mechanism includes a plurality of processing holes and a driving component. The processing holes are opened inside the processing table. An activity cavity is opened inside the processing hole. The inner top wall of the activity cavity is fixedly connected to two limiting rods. A toothed ring is rotatably connected to the inside of the activity cavity. A limiting groove is opened at the top of the toothed ring. The inside of the limiting groove is slidably connected to the outside of the two limiting rods. A plurality of racks are equidistantly arranged inside the toothed ring. Four first gears are rotatably connected to the inside of the activity cavity. The first gears are meshed with the racks. The top end of the first gear is fixedly connected to a connecting rod. One end of the connecting rod is detachably connected to a clamping block.

[0011] Preferably, the driving component includes a clamping motor. The clamping motor is mounted at the bottom of the processing table. The output end of the clamping motor is fixedly connected to a second gear. The outside of the second gear is meshed with the outside of the toothed ring.

[0012] A grinding method for a new type of safety valve automatic grinding equipment, which is applied to the new type of safety valve automatic grinding equipment according to any one of claims 1-7, includes the following method steps: S1. Clamp the safety valve: First, pass the valve body to be ground through one of the processing holes so that the flange of the valve body is located outside the processing hole. Then start the clamping motor. Driven by the clamping motor, the second gear starts to rotate and drives the toothed ring to rotate, so that the racks drive the four first gears to rotate, so that the connecting rod drives the clamping block to firmly clamp the outside of the valve body; S2. Positioning and assembly: Push the first mounting frame to rotate above the valve body, then start the first motor to drive the first threaded rod to rotate, so that the threaded sleeve drives the second mounting frame to move. When the guiding disc moves directly above the valve body, start the second motor to drive the second threaded rod to rotate, so that the threaded block drives the grinding mechanism to descend, and then assemble the two sliders with the flange of the valve body; S3. Grinding operation: When the positioning and assembly are completed and the grinding head reaches the grinding position, start the grinding motor to drive the grinding rod to rotate. The grinding rod will drive the grinding head to rotate through the elastic coupling, so as to automatically grind the valve body.

[0013] Preferably, in the step S2, by moving the two sliders, the assembly holes are aligned with the flange holes of the valve body, and then the sliders and the flange holes of the valve body are fastened together with bolts.

[0014] The present invention provides a new type of automatic grinding equipment for safety valves and its grinding method. It has the following beneficial effects: 1. After the safety valve is firmly clamped by the clamping mechanism of the present invention, through the cooperation of the horizontal displacement mechanism and the vertical displacement mechanism, the grinding mechanism is aligned with the position of the valve body that needs to be ground, and then starting the grinding motor can realize automatic grinding of the valve body with the grinding head, saving manual labor and improving work efficiency.

[0015] 2. By installing a guiding disc outside the grinding rod of the present invention, connecting it with the flange of the safety valve with sliders, and fixing the valve body by the clamping mechanism to fix the position of the guiding disc, the grinding rod is restricted by the guiding disc when rotating, achieving the elimination of the radial movement of the grinding rod, thereby improving the grinding accuracy.

[0016] 3. By opening two diversion grooves on the outer side of the grinding head of the present invention, the iron filings and abrasive grains generated during grinding enter the diversion grooves and flow out with the grinding fluid, playing a role in automatically cleaning the iron filings and abrasive grains, and avoiding impurities from affecting the grinding accuracy. Description of the drawings

[0017] Figure 1 is the perspective view of the present invention; Figure 2 is the bottom view of the present invention; Figure 3 is the structural schematic diagram of the horizontal displacement mechanism of the present invention; Figure 4 is the structural schematic diagram of the vertical displacement mechanism of the present invention; Figure 5 is Figure 1 the enlarged view of part A in Figure 6 is Figure 4 the enlarged view of part B in Figure 7Schematic diagram of the clamping mechanism of the present invention; Figure 8 Front view of the present invention.

[0018] Among them, 1. Processing table; 2. Column; 3. Connecting block; 4. First mounting frame; 5. First motor; 6. First threaded rod; 7. Threaded sleeve; 8. Second mounting frame; 9. Second motor; 10. Second threaded rod; 11. Threaded block; 12. Grinding motor; 13. Grinding rod; 14. Guide disk; 15. Chute; 16. Slide block; 17. Assembly hole; 18. Elastic coupling; 19. Grinding head; 20. Flow guide groove; 21. Valve body; 22. Processing hole; 23. Tooth ring; 24. Limit groove; 25. Limit rod; 26. Rack; 27. First gear; 28. Link; 29. Clamping block; 30. Clamping motor; 31. Second gear; 32. Turntable. Specific implementation mode

[0019] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0020] Please refer to the attached Figure 1 - attached Figure 3 , the embodiment of the present invention provides a new type of automatic grinding equipment for safety valves, including a processing table 1, a longitudinal displacement mechanism, a grinding mechanism and a plurality of clamping mechanisms. A column 2 is fixedly connected to the middle of the top of the processing table 1, a connecting block 3 is rotatably connected to the top of the column 2, and a transverse displacement mechanism is fixedly connected to the outside of the connecting block 3; The longitudinal displacement mechanism is installed on the outside of the transverse displacement mechanism to adjust the height of the grinding mechanism so as to facilitate grinding of the safety valve; The grinding mechanism is installed on the outside of the longitudinal displacement mechanism to grind the safety valve. The grinding mechanism includes a grinding motor 12, and a grinding rod 13 is fixedly connected to the output end of the grinding motor 12. An anti-jumping component is installed outside the grinding rod 13; The clamping mechanism is installed inside 1 to firmly clamp the safety valve to be ground, so as to facilitate the grinding mechanism to grind.

[0021] Please refer to the attached Figure 1 - attached Figure 3, The lateral displacement mechanism includes a first mounting frame 4, one end of the first mounting frame 4 is fixedly connected to the outside of the connecting block 3, a first motor 5 is installed at one end inside the first mounting frame 4, the output end of the first motor 5 is fixedly connected to a first threaded rod 6, a threaded sleeve 7 is threadedly connected to the outside of the first threaded rod 6, and the other end of the first threaded rod 6 is rotatably connected to the inside of the first mounting frame 4.

[0022] Specifically, the first mounting frame 4 can limit the threaded sleeve 7. Start the first motor 5, and under the drive of the first motor 5, the first threaded rod 6 rotates, so that the threaded sleeve 7 drives the second mounting frame 8 to move.

[0023] Please refer to the appendix Figure 3 - appendix Figure 4 , The longitudinal displacement mechanism includes a second mounting frame 8, the outside of the second mounting frame 8 is fixedly connected to the outside of the threaded sleeve 7, a second motor 9 is installed at one end inside the second mounting frame 8, the output end of the second motor 9 is fixedly connected to a second threaded rod 10, a threaded block 11 is threadedly connected to the outside of the second threaded rod 10, the other end of the second threaded rod 10 is rotatably connected to the inside of the second mounting frame 8, and the outside of both the first mounting frame 4 and the second mounting frame 8 is rotatably connected to a turntable 32, and one ends of the two turntables 32 are respectively fixedly connected to one ends of the first threaded rod 6 and the second threaded rod 10.

[0024] Specifically, the second mounting frame 8 can limit the threaded block 11. The second motor 9 is installed at the extended part of the threaded block 11. Start the second motor 9 to drive the second threaded rod 10 to rotate, so that the threaded block 11 drives the grinding mechanism to descend. In addition, rotating the two turntables 32 can manually adjust the lateral displacement mechanism and the longitudinal displacement mechanism.

[0025] Please refer to the appendix Figure 4 - appendix Figure 6 , The grinding motor 12 is fixedly connected to the outside of the threaded block 11, an elastic coupling 18 is installed at the bottom end of the grinding rod 13, a grinding head 19 is installed at the bottom of the elastic coupling 18, two diversion grooves 20 are formed on the outside of the grinding head 19, and a valve body 21 is movably connected to the outside of the grinding head 19.

[0026] Specifically, the elastic coupling 18 has an automatic adjustment function, so that the sealing surface between the grinding head 19 and the valve body 21 always maintains a horizontal movement towards each other, realizing automatic calibration and leveling during grinding, thereby improving the grinding accuracy. Grinding paste will be applied to the outer circumference of the grinding head 19 in advance during grinding, and the diversion grooves 20 can discharge the iron filings and abrasive grains generated during grinding.

[0027] Please refer to the appendix Figure 5 - appendix Figure 6, the anti-vibration component includes a guide disk 14, which is slidably connected to the outside of the grinding rod 13. Two installation grooves are provided inside the guide disk 14. Slide grooves 15 are provided on both sides of the installation groove, and a slider 16 is slidably connected to the inner side of the installation groove. Both sides of the slider 16 are slidably connected to the inner sides of the two slide grooves 15, and an assembly hole 17 is provided inside the slider 16.

[0028] Specifically, by moving the two sliders 16, the assembly hole 17 is aligned with the flange hole of the valve body 21, and then the slider 16 and the flange hole of the valve body 21 are fastened together with bolts and a retaining ring. At the same time, under the frictional force of the retaining ring, relative displacement between the slider 16 and the slide groove 15 is prevented.

[0029] Please refer to the appendix Figure 1 and 7 , the clamping mechanism includes a plurality of processing holes 22 and a driving component. The processing holes 22 are provided inside the processing table 1. An activity cavity is provided inside the processing hole 22. Two limiting rods 25 are fixedly connected to the inner top wall of the activity cavity, and a toothed ring 23 is rotatably connected to the inside of the activity cavity. A limiting groove 24 is provided at the top of the toothed ring 23, and the inner side of the limiting groove 24 is slidably connected to the outer sides of the two limiting rods 25. A plurality of racks 26 are equidistantly arranged inside the toothed ring 23. Four first gears 27 are rotatably connected to the inside of the activity cavity. The first gears 27 are meshed with the racks 26. A connecting rod 28 is fixedly connected to the top end of the first gear 27, and a clamping block 29 is detachably connected to one end of the connecting rod 28.

[0030] Specifically, the limiting rods 25 are located at the two diametrically opposite ends of the limiting groove 24, which can ensure the stable rotation of the toothed ring 23. And when the clamping block 29 is not clamped stably, different clamping blocks 29 can be replaced according to the actual situation to better clamp the valve body 21. The valve body 21 to be ground is passed through one of the processing holes 22, so that the flange of the valve body 21 is located outside the processing hole 22. Then the clamping motor 30 is started. Driven by the clamping motor 30, the second gear 31 starts to rotate, and drives the toothed ring 23 to rotate, so that the racks 26 drive the four first gears 27 to rotate, and then the connecting rod 28 drives the clamping block 29 to firmly clamp the outside of the valve body 21.

[0031] Please refer to the appendix Figure 7 , the driving component includes a clamping motor 30, which is installed at the bottom of the processing table 1. The output end of the clamping motor 30 is fixedly connected to a second gear 31, and the outside of the second gear 31 is meshed with the outside of the toothed ring 23.

[0032] Specifically, multiple clamping motors 30 can be used separately to drive the second gear 31, so that the toothed ring 23 rotates, and further realize the clamping function of the clamping mechanism. Embodiment 2

[0033] Based on the above embodiments, this embodiment further provides a grinding method for a new type of safety valve automatic grinding device, which is applied to a new type of safety valve automatic grinding device mentioned in the above embodiments. The specific method steps are as follows: S1. Clamp the safety valve: First, pass the valve body 21 to be ground through one of the processing holes 22, so that the flange of the valve body 21 is located outside the processing hole 22. Then start the clamping motor 30. Driven by the clamping motor 30, the second gear 31 starts to rotate and drives the toothed ring 23 to rotate. As a result, the rack 26 drives the four first gears 27 to rotate, and then the connecting rod 28 drives the clamping block 29 to firmly clamp the outside of the valve body 21; S2. Positioning and assembly: Push the first mounting frame 4 to rotate above the valve body 21, and then start the first motor 5 to drive the first threaded rod 6 to rotate, so that the threaded sleeve 7 drives the second mounting frame 8 to move. When the guide disk 14 moves directly above the valve body 21, start the second motor 9 to drive the second threaded rod 10 to rotate, so that the threaded block 11 drives the grinding mechanism to descend, and then assemble the two sliders 16 with the flange of the valve body 21; S3. Grinding operation: When the positioning and assembly are completed and the grinding head 19 reaches the grinding position, start the grinding motor 12 to drive the grinding rod 13 to rotate. The grinding rod 13 drives the grinding head 19 to rotate through the elastic coupling 18, so as to automatically grind the valve body 21.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of automatic grinding equipment for safety valves, comprising a processing table (1), a longitudinal displacement mechanism, a grinding mechanism and a plurality of clamping mechanisms. It is characterized in that A column (2) is fixedly connected to the middle of the top end of the processing table (1), a connecting block (3) is rotatably connected to the top of the column (2), and a lateral displacement mechanism is fixedly connected to the outside of the connecting block (3); The longitudinal displacement mechanism is installed on the outer side of the lateral displacement mechanism to adjust the height of the grinding mechanism so as to facilitate grinding of the safety valve; The grinding mechanism is installed on the outer side of the longitudinal displacement mechanism to grind the safety valve. The grinding mechanism includes a grinding motor (12), and the output end of the grinding motor (12) is fixedly connected to a grinding rod (13). An anti-jumping component is installed on the outside of the grinding rod (13); The clamping mechanism is installed inside the processing table (1) to firmly clamp the safety valve to be ground, facilitating grinding by the grinding mechanism.

2. The new type of automatic grinding equipment for safety valves according to claim 1, It is characterized in that The lateral displacement mechanism includes a mounting frame one (4), one end of the mounting frame one (4) is fixedly connected to the outside of the connecting block (3), a motor one (5) is installed at one end inside the mounting frame one (4), the output end of the motor one (5) is fixedly connected to a threaded rod one (6), a threaded sleeve (7) is threadedly connected to the outside of the threaded rod one (6), and the other end of the threaded rod one (6) is rotatably connected to the inside of the mounting frame one (4).

3. The new type of automatic grinding equipment for safety valves according to claim 2, It is characterized in that The longitudinal displacement mechanism includes a mounting frame two (8), the outside of the mounting frame two (8) is fixedly connected to the outside of the threaded sleeve (7), a motor two (9) is installed at one end inside the mounting frame two (8), the output end of the motor two (9) is fixedly connected to a threaded rod two (10), a threaded block (11) is threadedly connected to the outside of the threaded rod two (10), the other end of the threaded rod two (10) is rotatably connected to the inside of the mounting frame two (8), and turntables (32) are rotatably connected to the outside of both the mounting frame one (4) and the mounting frame two (8). One ends of the two turntables (32) are respectively fixedly connected to one ends of the threaded rod one (6) and the threaded rod two (10).

4. The new type of automatic grinding equipment for safety valves according to claim 3, It is characterized in that The grinding motor (12) is fixedly connected to the outside of the threaded block (11), an elastic coupling (18) is installed at the bottom end of the grinding rod (13), a grinding head (19) is installed at the bottom of the elastic coupling (18), two flow guiding grooves (20) are formed on the outside of the grinding head (19), and a valve body (21) is movably connected to the outside of the grinding head (19).

5. The new type of automatic grinding equipment for safety valves according to claim 4, It is characterized in that The anti-jumping component includes a guiding disc (14), which is slidably connected to the outside of the grinding rod (13). Two installation grooves are formed inside the guiding disc (14). Sliding grooves (15) are formed on both sides of the installation groove, and a slider (16) is slidably connected to the inner side of the installation groove. Both sides of the slider (16) are slidably connected to the inner sides of the two sliding grooves (15). An assembly hole (17) is formed inside the slider (16).

6. A novel automatic grinding device for safety valves according to claim 1, characterized in that, the clamping mechanism includes a plurality of processing holes (22) and a driving component. The processing holes (22) are formed inside the processing table (1). An activity cavity is formed inside the processing hole (22). Two limiting rods (25) are fixedly connected to the inner top wall of the activity cavity, and a toothed ring (23) is rotatably connected to the inside of the activity cavity. A limiting groove (24) is formed at the top of the toothed ring (23). The inner side of the limiting groove (24) is slidably connected to the outer sides of the two limiting rods (25). A plurality of racks (26) are equidistantly arranged inside the toothed ring (23). Four gears one (27) are rotatably connected to the inside of the activity cavity. The gear one (27) is meshed with the rack (26). A connecting rod (28) is fixedly connected to the top end of the gear one (27). One end of the connecting rod (28) is detachably connected to a clamping block (29).

7. A novel automatic grinding device for safety valves according to claim 6, characterized in that, the driving component includes a clamping motor (30), which is installed at the bottom of the processing table (1). The output end of the clamping motor (30) is fixedly connected to a gear two (31). The outer side of the gear two (31) is meshed with the outer side of the toothed ring (23).

8. A grinding method for a novel automatic grinding device for safety valves, characterized in that, applied to a novel automatic grinding device for safety valves according to any one of claims 1-7, including the following method steps: S1. Clamp the safety valve: First, pass the valve body (21) to be ground through one of the processing holes (22) so that the flange of the valve body (21) is located outside the processing hole (22). Then start the clamping motor (30). Driven by the clamping motor (30), the gear two (31) starts to rotate and drives the toothed ring (23) to rotate, so that the rack (26) drives the four gears one (27) to rotate, so that the connecting rod (28) drives the clamping block (29) to firmly clamp the outside of the valve body (21); S2. Positioning and assembly: Push the mounting frame one (4) to rotate above the valve body (21), and then start the motor one (5) to drive the threaded rod one (6) to rotate, so that the threaded sleeve (7) drives the mounting frame two (8) to move. When the guiding disc (14) moves directly above the valve body (21), start the motor two (9) to drive the threaded rod two (10) to rotate, so that the threaded block (11) drives the grinding mechanism to descend, and then assemble the two sliders (16) with the flange of the valve body (21). S3. Grinding operation: When the positioning and assembly are completed and the grinding head (19) reaches the grinding position, start the grinding motor (12) to drive the grinding rod (13) to rotate. The grinding rod (13) will drive the grinding head (19) to rotate through the elastic coupling (18), so as to automatically grind the valve body (21).

9. The grinding method of a new type of automatic grinding equipment for safety valves according to claim 8, characterized in that in the step S2, by moving the two sliders (16), the assembly holes (17) are aligned with the flange holes of the valve body (21), and then the sliders (16) are fastened to the flange holes of the valve body (21) with bolts.

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