Polishing device for valve machining

Abstract

The invention relates to the technical field of valve machining, and discloses a valve machining grinding device which comprises a supporting and positioning mechanism, one end of the supporting and positioning mechanism is connected with a height control mechanism, and the bottom end of the height control mechanism is connected with a grinding linkage control mechanism and a grinding diameter control mechanism. Through the grinding diameter control mechanism, quick adjustment can be conducted according to valve end faces of different sizes, the grinding wheel does not need to be frequently replaced, and therefore the grinding efficiency is greatly improved. Meanwhile, by means of the design, the device can flexibly meet the inner and outer end face grinding requirements of stop valves and other different types of valves, and the applicability of the device is further improved; and by optimizing the design of the polishing linkage control mechanism, the device effectively reduces the driving force required in the polishing process while maintaining efficient polishing, so that the energy consumption and the operation cost are reduced. In addition, due to the fact that the replacement frequency of the grinding wheel is reduced, material consumption and replacement cost are further reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of valve processing, and in particular relates to a grinding device for valve processing. Background Art

[0002] As an indispensable component in piping systems, valves fulfill crucial responsibilities, including opening and closing pipelines, precisely controlling flow direction, and regulating medium parameters (such as temperature, pressure, and flow). Based on their functional characteristics, valves can be categorized into various types, including shutoff valves, check valves, and regulating valves. Valves are core control components in fluid transportation systems, performing a range of critical functions, including shutoff, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion, and overflow and pressure relief.

[0003] Valves are widely used in fluid control systems, ranging from simple, easy-to-operate globe valves to high-end valves used in complex automatic control systems. Their variety and specifications are diverse. In the manufacturing process of globe valves, end polishing is crucial, as it directly impacts the valve's connection and sealing performance.

[0004] In existing technologies, the processing and polishing of stop valves, for example, faces many challenges. The end face of the valve and the internal sealing end face both require fine polishing, and the current common polishing method is to directly cover the valve surface with a grinding wheel. This results in the need to frequently change grinding wheels of different sizes to meet the polishing requirements of different parts during actual operation, which is not only cumbersome but also greatly reduces polishing efficiency.

[0005] When grinding large valves, the friction generated during the grinding process will increase significantly due to the increased contact area, which requires the equipment to provide a stronger driving force, which undoubtedly increases the energy consumption and operating costs of the equipment.

[0006] At the same time, once the grinding wheel is partially damaged, according to the existing technology, it is often necessary to replace the entire grinding wheel. Moreover, the larger grinding wheel is often only partially worn, which not only causes material waste, but also further increases the grinding cost of the valve.

[0007] In addition, when grinding the end face, the valve end face may be uneven, which will cause the grinding wheel to become unstable during the grinding process, thereby affecting the flatness and accuracy of the grinding surface, posing a potential hidden danger to the quality of the valve.

[0008] Therefore, it is necessary to invent a grinding device for valve processing to solve the above problems, which can efficiently solve the hidden dangers of frequent replacement of grinding wheels, high energy consumption, high cost and unstable grinding. Summary of the Invention

[0009] In view of the above problems, the present invention provides a grinding device for valve processing to solve the problems raised in the above background technology.

[0010] To achieve the above-mentioned object, the present invention provides the following technical solution: a valve processing grinding device, comprising a support and positioning mechanism, one end of the support and positioning mechanism is connected to a height control mechanism, the bottom end of the height control mechanism is connected to a grinding linkage control mechanism and a grinding diameter control mechanism, wherein:

[0011] The grinding diameter control mechanism includes a first positioning gear, two first positioning racks are respectively engaged at both ends of the tooth surface of the first positioning gear, a control seat is fixed at one end of each of the four first positioning racks, a first positioning bevel gear is rotatably provided at the top end of each of the four control seats, a rotating seat is fixed at the bottom end of each of the four first positioning bevel gears through the control seat, and a grinding wheel is fixed at the bottom end of each of the four rotating seats;

[0012] The grinding linkage control mechanism includes a positioning bevel gear ring, and the four sides of the positioning bevel gear ring are meshed with a second positioning bevel gear, one end of the four second positioning bevel gears is fixed with a positioning shaft, both sides of the four positioning shafts are fixed with a positioning bar, one end of the outer wall of the four positioning shafts is interspersed with a positioning sleeve, one end of the outer wall of the four positioning sleeves is interspersed with a third positioning bevel gear, and the tooth surfaces of the four third positioning bevel gears are respectively meshed with the tooth surfaces of the four first positioning bevel gears.

[0013] Preferably, positioning rings are fixed at both ends of the outer wall of the positioning sleeve, one side of the two positioning rings are connected by two positioning rods, one end of the outer walls of the two positioning rods is provided with a return spring, and the other end of the outer walls of the two positioning rods is connected with one side of the third positioning bevel gear, and a limiting groove is provided in the middle position of the third positioning bevel gear, and the third positioning bevel gear is slidably connected to one end of the outer wall of the positioning sleeve through the limiting groove.

[0014] Preferably, the grinding linkage control mechanism also includes a positioning frame, the four sides of the bottom of the positioning frame are fixed with a first positioning seat, the middle position of the four first positioning seats is provided with a first through hole, the outer ends of one side of the four second positioning bevel gears are respectively rotatably connected to one side of the four first positioning seats, one end of the top of the four control seats is fixed with a second positioning seat, the middle position of the four second positioning seats is provided with a second through hole, and the outer ends of one side of the four third positioning bevel gears are respectively rotatably connected to one side of the four second positioning seats.

[0015] Preferably, the grinding diameter control mechanism also includes a first control frame, a first control groove is opened in the middle position of the first control frame, the bottom ends of the four first positioning seats are fixedly connected to the top of the first control frame, the first positioning gear is located inside the first control frame, one end of one side of the four control seats is fixed with a first balance bar, the four first positioning racks and the four first balance bars are all located inside the first control groove, and one end of the four first positioning racks and one end of the four first balance bars are fixed with a first positioning block.

[0016] Preferably, an auxiliary positioning mechanism is fixedly provided at the bottom end of the first control frame, and the auxiliary positioning mechanism includes a second control frame, a second control slot is opened in the middle position of the second control slot, a second positioning gear is rotatably provided at the middle position of the second control slot, and second positioning racks are meshed at both ends of both sides of the second positioning gear, a support frame is fixed at one end of the four second positioning racks, auxiliary wheels are rotatably provided at both ends of the four support frames, a second balance bar is fixed on one side of the four support frames, a second positioning block is fixed on one end of the four second balance bars and one end of the four second positioning racks, one side of the four second balance bars is respectively in sliding contact with one side of the four second positioning racks, and the four second balance bars and the four second positioning racks are all located inside the second control slot.

[0017] Preferably, the top end of the second control frame is fixedly connected to the bottom end of the first control frame through a plurality of connecting rods, a first motor is fixedly provided at the middle position of the bottom end of the second control frame, a connecting shaft is fixedly provided at the output end of the first motor, and both ends of the connecting shaft pass through the first control frame and the second control frame respectively and are fixedly connected to the first positioning gear and the second positioning gear.

[0018] Preferably, the support and positioning mechanism includes a support base, a rotating disk is rotatably provided at one end of the top of the support base, a drive motor is fixedly provided inside the support base, and the output end of the drive motor is fixedly connected to the middle position of the bottom of the rotating disk.

[0019] Preferably, the height control mechanism includes a mounting bracket fixed to the other end of the top of the support base, a positioning screw is rotatably provided at the middle position of the mounting bracket, a second motor is fixedly provided at the top of the mounting bracket, the output end of the second motor is fixedly connected to the top of the positioning screw, a positioning groove is provided on one side of the top of the mounting bracket, a lifting seat is threadedly provided on one end of the outer wall of the positioning screw, and a lifting bracket is fixedly provided on one end of the lifting seat through the positioning groove.

[0020] Preferably, one end of the bottom of the lifting frame is fixedly connected to the top of the positioning frame through a connecting frame, a driving shaft is rotatably provided in the middle position of the positioning frame, the bottom end of the driving shaft is fixedly connected to the middle position of the positioning helical gear ring, and a third motor is fixedly provided at one end of the top of the lifting frame, and the output end of the third motor passes through the lifting frame and is fixedly connected to the top of the driving shaft.

[0021] Preferably, an intelligent control panel is fixedly provided on one side of the support base, and the drive motor, the first motor, the second motor and the third motor are all electrically connected to an external power supply through the intelligent control panel.

[0022] Technical effects and advantages of the present invention:

[0023] 1. The present invention uses a grinding diameter control mechanism to quickly adjust to valve end faces of varying sizes, eliminating the need for frequent grinding wheel replacement, thereby significantly improving grinding efficiency. This design also enables the device to flexibly adapt to the internal and external end face grinding requirements of different valve types, such as globe valves, further enhancing its applicability.

[0024] 2. By optimizing the design of the grinding linkage control mechanism, the present invention effectively reduces the driving force required during the grinding process while maintaining high grinding efficiency, thereby reducing energy consumption and operating costs. In addition, since the frequency of grinding wheel replacement is reduced, material consumption and replacement costs are further reduced.

[0025] 3. The present invention ensures the stability and accuracy of the grinding wheel during the grinding process through the linkage design of the auxiliary positioning mechanism and the grinding linkage control mechanism. The precise positioning of the auxiliary wheel effectively avoids the grinding instability caused by the unevenness of the valve end face during the grinding process, improves the flatness and accuracy of the grinding surface, and thus improves the quality of the valve;

[0026] 4. The present invention utilizes a grinding linkage control mechanism to maximize contact and polishing between each grinding wheel and the valve end face, facilitating the partial replacement of damaged grinding wheels and reducing maintenance costs and difficulty. Furthermore, the overall replacement of worn grinding wheels is also more convenient, further improving the maintainability and service life of the equipment.

[0027] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a schematic diagram of the grinding device of the present invention from an angle one;

[0030] Figure 2 This is a schematic diagram of the grinding device of the present invention from angle 2;

[0031] Figure 3 It is a schematic diagram of the support and positioning mechanism and the height control mechanism of the present invention;

[0032] Figure 4 Schematic diagram of the positional relationship between the grinding linkage control mechanism and the height control mechanism of the present invention;

[0033] Figure 5 It is a schematic diagram showing the distribution of the grinding linkage control mechanism, the grinding diameter control mechanism and the auxiliary positioning mechanism of the present invention;

[0034] Figure 6 It is a schematic diagram of the grinding linkage control mechanism of the present invention;

[0035] Figure 7 is a schematic diagram of the grinding diameter control mechanism of the present invention;

[0036] Figure 8 It is a schematic diagram of the grinding linkage control mechanism of the present invention;

[0037] Figure 9 This is a schematic diagram of a partial state of the grinding linkage control mechanism of the present invention;

[0038] Figure 10 This is a schematic diagram of the second local state of the grinding linkage control mechanism of the present invention;

[0039] Figure 11 It is a partial cross-sectional schematic diagram of the grinding linkage control mechanism of the present invention;

[0040] Figure 12 is a schematic cross-sectional view of the first control frame and the second control frame of the present invention;

[0041] Figure 13 Schematic diagram of the distribution of the grinding diameter control mechanism and the auxiliary positioning mechanism of the present invention;

[0042] Figure 14 It is a schematic diagram of the linkage between the auxiliary positioning mechanism and the grinding diameter control mechanism of the present invention;

[0043] Figure 15 It is a schematic diagram of the auxiliary positioning mechanism of the present invention.

[0044] In the figure: 1. Support and positioning mechanism; 101. Support base; 102. Rotating disk; 103. Driving motor; 2. Height control mechanism; 201. Mounting frame; 202. Positioning screw; 203. Second motor; 204. Positioning slot; 205. Lifting seat; 206. Lifting frame; 3. Grinding linkage control mechanism; 301. Positioning frame; 302. Connecting frame; 303. Third motor; 304. Driving shaft; 305. First positioning seat; 306. First through hole; 307. Positioning helical gear ring; 308. Second positioning helical gear; 309. Positioning shaft; 310. Positioning bar; 311. Second positioning seat; 312. First positioning helical gear; 313. Rotating seat; 314. Grinding wheel; 315. Third positioning helical gear Gear; 316, positioning sleeve; 317, positioning ring; 318, positioning rod; 319, return spring; 320, limit slot; 321, second through hole; 4, grinding diameter control mechanism; 401, first positioning gear; 402, first positioning rack; 403, first balance bar; 404, first positioning block; 405, control seat; 406, first control frame; 407, first control slot; 5, auxiliary positioning mechanism; 501, second control frame; 502, second positioning gear; 503, connecting shaft; 504, first motor; 505, second control slot; 506, connecting rod; 507, second positioning rack; 508, second balance bar; 509, second positioning block; 510, support frame; 511, auxiliary wheel. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0046] The present invention provides Figure 1-15 The valve processing grinding device shown in the figure includes a support and positioning mechanism 1, one end of the support and positioning mechanism 1 is connected to a height control mechanism 2, and the bottom end of the height control mechanism 2 is connected to a grinding linkage control mechanism 3 and a grinding diameter control mechanism 4, wherein,

[0047] The grinding diameter control mechanism 4 includes a first positioning gear 401. The two ends of the tooth surface of the first positioning gear 401 are respectively engaged with two first positioning racks 402. One end of each of the four first positioning racks 402 is fixedly provided with a control seat 405. The top ends of the four control seats 405 are rotatably provided with a first positioning bevel gear 312. The bottom ends of the four first positioning bevel gears 312 pass through the control seat 405 and are fixed with a rotating seat 313. The bottom ends of the four rotating seats 313 are fixed with a grinding wheel 314.

[0048] The grinding diameter control mechanism 4 also includes a first control frame 406. A first control slot 407 is defined in the middle of the first control frame 406. The bottom ends of the four first positioning seats 305 are fixedly connected to the top of the first control frame 406. The first positioning gear 401 is located inside the first control frame 406. A first balance bar 403 is fixedly provided at one end of each of the four control seats 405. The four first positioning racks 402 and the four first balance bars 403 are all located inside the first control slot 407. A first positioning block 404 is fixedly provided at one end of each of the four first positioning racks 402 and one end of each of the four first balance bars 403.

[0049] The grinding linkage control mechanism 3 includes a positioning bevel gear ring 307, and the four sides of the positioning bevel gear ring 307 are meshed with second positioning bevel gears 308. One end of each of the four second positioning bevel gears 308 is fixed with a positioning shaft 309, and both sides of the four positioning shafts 309 are fixed with a positioning bar 310. One end of the outer wall of the four positioning shafts 309 is inserted with a positioning sleeve 316, and one end of the outer wall of the four positioning sleeves 316 is inserted with a third positioning bevel gear 315. The tooth surfaces of the four third positioning bevel gears 315 are respectively meshed with the tooth surfaces of the four first positioning bevel gears 312;

[0050] A positioning ring 317 is fixed to both ends of the outer wall of the positioning sleeve 316. One side of the two positioning rings 317 is connected by two positioning rods 318. A return spring 319 is inserted into one end of the outer wall of the two positioning rods 318. The other end of the outer wall of the two positioning rods 318 is inserted into one side of the third positioning bevel gear 315. A limiting groove 320 is provided in the middle position of the third positioning bevel gear 315. The third positioning bevel gear 315 is slidably connected to one end of the outer wall of the positioning sleeve 316 through the limiting groove 320.

[0051] The grinding linkage control mechanism 3 also includes a positioning frame 301, and the four sides of the bottom of the positioning frame 301 are fixed with first positioning seats 305, and the middle positions of the four first positioning seats 305 are each provided with a first through hole 306. The outer ends of one side of the four second positioning bevel gears 308 are respectively rotatably connected to one side of the four first positioning seats 305. One end of the top of the four control seats 405 is fixed with a second positioning seat 311, and the middle positions of the four second positioning seats 311 are each provided with a second through hole 321. The outer ends of one side of the four third positioning bevel gears 315 are respectively rotatably connected to one side of the four second positioning seats 311.

[0052] The four first positioning racks 402 drive the four control seats 405, the rotating seat 313 and the grinding wheel 314 to move synchronously, making it easy to grind valve end faces of different sizes, as well as the inner and outer end faces of the stop valve, thereby reducing the need to replace the grinding wheel 314 due to size mismatch and improving the valve end face grinding efficiency.

[0053] When the control seat 405, the rotating seat 313 and the grinding wheel 314 are adjusted in size, the third positioning bevel gear 315 on the side of the second positioning seat 311 is rotated to move synchronously, so that the positioning sleeve 316 inserted into the inside of the third positioning bevel gear 315 through the limiting groove 320 moves along the positioning shaft 309 and the positioning bar 310. The positioning bar 310 is positioned to make the positioning shaft 309, the positioning sleeve 316 and the third positioning bevel gear 315 rotate synchronously. The positioning ring 317 at the end is positioned so that one end of the outer wall of the positioning rod 318 connected to the middle position of the positioning ring 317 is also inserted and connected with the third positioning bevel gear 315. Through the elastic deformation of the return spring 319 inserted at the other end of the outer wall of the positioning rod 318, in a natural state, the end of the positioning sleeve 316 inserted with the return spring 319 is away from the third positioning bevel gear 315, so that the positioning sleeve 316 is convenient for maximizing the insertion connection with the positioning shaft 309, so that when the control seat 405 moves to the farthest end, The positioning shaft 309, positioning sleeve 316 and third positioning bevel gear 315 continue to rotate stably and synchronously. When the control seat 405 moves to the nearest end, one end of the return spring 319 inserted through the positioning sleeve 316 passes through the first through hole 306 and is squeezed against one side of the second positioning bevel gear 308. At the same time, the elastic deformation of the return spring 319 causes the positioning sleeve 316 and the positioning rod 318 to be squeezed against the third positioning bevel gear 315, so that the third positioning bevel gear 315 and the second positioning bevel gear 308 are as close as possible, making it easy for the four control seats 405 to be as close as possible, and facilitating the grinding of valve end faces of smaller sizes. Through the linkage of the grinding linkage control mechanism 3 and the grinding diameter control mechanism 4, the four grinding wheels 314 are all stably grinding and rotating while maximizing the change in grinding size. While changing the grinding size, the size limitation of the connecting structure is avoided, so that the grinding equipment can be easily inserted into the interior of valve bodies of different sizes for internal end face grinding, thereby improving the working adaptability of the grinding equipment and increasing the end face grinding efficiency.

[0054] As a specific embodiment of the present invention, an auxiliary positioning mechanism 5 is fixedly provided at the bottom end of the first control frame 406, and the auxiliary positioning mechanism 5 includes a second control frame 501, a second control slot 505 is opened in the middle position of the second control slot 505, and a second positioning gear 502 is rotatably provided at the middle position of the second control slot 505, and second positioning racks 507 are meshed at both ends of the second positioning gear 502, and one end of the four second positioning racks 507 is fixed with a support frame 510, and auxiliary wheels 511 are rotatably provided at both ends of the four support frames 510, and a second balancing rod 508 is fixed on one side of the four support frames 510, and a second positioning block 509 is fixed on one end of the four second balancing rods 508 and one end of the four second positioning racks 507, and one side of the four second balancing rods 508 is respectively in sliding contact with one side of the four second positioning racks 507, and the four second balancing rods 508 and the four second positioning racks 507 are all located inside the second control slot 505;

[0055] The output end of the first motor 504 fixed at the bottom end of the second control frame 501 drives the first positioning gear 401 and the second positioning gear 502 to rotate, so that the tooth surface of the second positioning gear 502 is respectively engaged with the tooth surface of the four second positioning racks 507, so that the support frame 510 fixed at one end of the four second positioning racks 507 slides stably through the positioning of the second balance bar 508, so that the four support frames 510 all drive the auxiliary wheels 511 connected at both ends to be squeezed against the inner wall of the valve end; at the same time, the tooth surfaces of the first positioning gear 401 are respectively engaged with the four The tooth surfaces of the first positioning racks 402 are meshed, so that the control seats 405 fixed at one end of the four first positioning racks 402 slide stably through the positioning of the first balance bar 403, so that the four control seats 405 drive the four rotating seats 313 and the four grinding wheels 314 to move stably to the corresponding positions of the end faces to be polished. Due to the positioning of the four support frames 510 and the auxiliary wheels 511, the center position of the grinding wheel 314 just corresponds to the side position of the annular end face to be polished, thereby improving the stability of the valve end face polishing and reducing the hidden danger of unstable polishing caused by defects on the end face;

[0056] The top of the second control frame 501 is fixedly connected to the bottom of the first control frame 406 through multiple connecting rods 506. The first motor 504 is fixedly provided at the middle position of the bottom of the second control frame 501. The output end of the first motor 504 is fixedly provided with a connecting shaft 503. The two ends of the connecting shaft 503 pass through the first control frame 406 and the second control frame 501 respectively and are fixedly connected to the first positioning gear 401 and the second positioning gear 502.

[0057] As a specific embodiment of the present invention, the support and positioning mechanism 1 includes a support base 101, a rotating disk 102 is rotatably provided at one end of the top of the support base 101, a drive motor 103 is fixedly provided inside the support base 101, and the output end of the drive motor 103 is fixedly connected to the middle position of the bottom of the rotating disk 102;

[0058] When a grinding device is needed to grind the valve, the valve body to be grinded is stably installed at the center of the rotating disk 102. During the grinding work, the driving motor 103 fixed in the middle position of the support base 101 drives the rotating disk 102 and the valve body to rotate stably, so that the valve body can be stably processed.

[0059] As a specific embodiment of the present invention, the height control mechanism 2 includes a mounting frame 201 fixed to the other end of the top of the support base 101, a positioning screw 202 is rotatably provided in the middle position of the mounting frame 201, a second motor 203 is fixed to the top of the mounting frame 201, the output end of the second motor 203 is fixedly connected to the top of the positioning screw 202, a positioning groove 204 is opened on one side of the top of the mounting frame 201, a lifting seat 205 is threadedly provided on one end of the outer wall of the positioning screw 202, and a lifting frame 206 is fixed to one end of the lifting seat 205 through the positioning groove 204;

[0060] The output end of the second motor 203 fixed to the top of the mounting frame 201 drives the positioning screw 202 to rotate, so that the lifting seat 205 threadedly connected to the outer wall of the positioning screw 202 passes through the positioning slot 204 to drive the lifting frame 206 to move up and down, so that the grinding linkage control mechanism 3, the grinding diameter control mechanism 4 and the auxiliary positioning mechanism 5 are all stably raised and lowered, so that the four grinding wheels 314 are stably in contact with the valve end face, which facilitates the grinding of valves of different heights;

[0061] One end of the bottom of the lifting frame 206 is fixedly connected to the top of the positioning frame 301 through the connecting frame 302. A driving shaft 304 is rotatably provided in the middle position of the positioning frame 301. The bottom end of the driving shaft 304 is fixedly connected to the middle position of the positioning bevel gear ring 307. One end of the top of the lifting frame 206 is fixedly provided with a third motor 303. The output end of the third motor 303 passes through the lifting frame 206 and is fixedly connected to the top of the driving shaft 304.

[0062] As a specific embodiment of the present invention, an intelligent control panel is fixedly provided on one side of the support base 101, and the drive motor 103, the first motor 504, the second motor 203 and the third motor 303 are all electrically connected to the external power supply through the intelligent control panel.

[0063] The output end of the third motor 303 fixed to one end of the lifting frame 206 drives the drive shaft 304 to rotate, and the drive shaft 304 passes through the positioning frame 301 to drive the positioning bevel gear ring 307 to rotate. The positioning bevel gear ring 307, the first positioning bevel gear 312, the second positioning bevel gear 308 and the third positioning bevel gear 315 are engaged and rotated, so that the four grinding wheels 314 can rotate synchronously and stably perform grinding on the end face of the valve body. The cooperation of the support and positioning mechanism 1 facilitates sufficient grinding of the valve end face, avoids the problem of increased driving force due to large friction, and reduces energy consumption and operating costs.

[0064] Through the linkage of the grinding linkage control mechanism 3 and the grinding diameter control mechanism 4, the working efficiency is maximized without adding electrical appliances, meeting different needs and increasing the grinding work efficiency;

[0065] Through the grinding linkage control mechanism 3, multiple grinding wheels 314 are subjected to decentralized grinding processing, so that each grinding wheel 314 is subjected to maximum contact grinding, so as to facilitate partial replacement of damaged grinding wheels 314, and also to replace worn grinding wheels 314 as a whole, thereby increasing convenience and reducing processing costs.

[0066] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A grinding device for valve processing, comprising a supporting and positioning mechanism (1), characterized in that: One end of the support and positioning mechanism (1) is connected to a height control mechanism (2), and the bottom end of the height control mechanism (2) is connected to a grinding linkage control mechanism (3) and a grinding diameter control mechanism (4), wherein: The grinding diameter control mechanism (4) comprises a first positioning gear (401), two ends of the tooth surface of the first positioning gear (401) are respectively engaged with two first positioning racks (402), one end of each of the four first positioning racks (402) is fixedly provided with a control seat (405), the top ends of the four control seats (405) are rotatably provided with a first positioning bevel gear (312), the bottom ends of the four first positioning bevel gears (312) pass through the control seat (405) and are fixedly provided with a rotating seat (313), and the bottom ends of the four rotating seats (313) are fixedly provided with a grinding wheel (314); The grinding linkage control mechanism (3) comprises a positioning bevel gear ring (307), four sides of the positioning bevel gear ring (307) are meshed with second positioning bevel gears (308), one end of each of the four second positioning bevel gears (308) is fixed with a positioning shaft (309), both sides of the four positioning shafts (309) are fixed with a positioning bar (310), one end of the outer wall of the four positioning shafts (309) is inserted with a positioning sleeve (316), one end of the outer wall of the four positioning sleeves (316) is inserted with a third positioning bevel gear (315), and the tooth surfaces of the four third positioning bevel gears (315) are respectively meshed with the tooth surfaces of the four first positioning bevel gears (312).

2. A valve processing grinding device according to claim 1, characterized in that: A positioning ring (317) is fixedly provided at both ends of the outer wall of the positioning sleeve (316), one side of the two positioning rings (317) is connected by two positioning rods (318), one end of the outer wall of the two positioning rods (318) is inserted with a return spring (319), and the other end of the outer wall of the two positioning rods (318) is inserted and connected with one side of the third positioning bevel gear (315), and a limiting groove (320) is provided in the middle position of the third positioning bevel gear (315), and the third positioning bevel gear (315) is slidably connected to one end of the outer wall of the positioning sleeve (316) through the limiting groove (320).

3. A valve processing grinding device according to claim 1, characterized in that: The grinding linkage control mechanism (3) further comprises a positioning frame (301), wherein the four sides of the bottom of the positioning frame (301) are fixedly provided with first positioning seats (305), the middle positions of the four first positioning seats (305) are provided with first through holes (306), the outer ends of one side of the four second positioning bevel gears (308) are respectively rotatably connected to one side of the four first positioning seats (305), the top ends of the four control seats (405) are fixedly provided with second positioning seats (311), the middle positions of the four second positioning seats (311) are provided with second through holes (321), and the outer ends of one side of the four third positioning bevel gears (315) are respectively rotatably connected to one side of the four second positioning seats (311).

4. A valve processing grinding device according to claim 3, characterized in that: The grinding diameter control mechanism (4) further comprises a first control frame (406), a first control slot (407) is provided in the middle of the first control frame (406), the bottom ends of the four first positioning seats (305) are fixedly connected to the top end of the first control frame (406), the first positioning gear (401) is located inside the first control frame (406), one end of one side of the four control seats (405) is fixedly provided with a first balance bar (403), the four first positioning racks (402) and the four first balance bars (403) are all located inside the first control slot (407), and one end of the four first positioning racks (402) and one end of the four first balance bars (403) are fixedly provided with a first positioning block (404).

5. A valve processing grinding device according to claim 4, characterized in that: An auxiliary positioning mechanism (5) is fixedly provided at the bottom end of the first control frame (406), and the auxiliary positioning mechanism (5) comprises a second control frame (501), a second control slot (505) is provided in the middle of the second control slot (505), a second positioning gear (502) is rotatably provided in the middle of the second control slot (505), and second positioning racks (507) are meshed at both ends of both sides of the second positioning gear (502), and a support frame (510) is fixedly provided at one end of four second positioning racks (507), and the four support frames (510) are fixed at one end of the four second positioning racks (507). Auxiliary wheels (511) are rotatably provided at both ends of the frame (510), a second balancing rod (508) is fixedly provided on one side of each of the four supporting frames (510), a second positioning block (509) is fixedly provided on one end of each of the four second balancing rods (508) and one end of each of the four second positioning racks (507), one side of each of the four second balancing rods (508) is in sliding contact with one side of each of the four second positioning racks (507), and the four second balancing rods (508) and the four second positioning racks (507) are all located inside the second control slot (505).

6. A valve processing grinding device according to claim 5, characterized in that: The top end of the second control frame (501) is fixedly connected to the bottom end of the first control frame (406) via a plurality of connecting rods (506); a first motor (504) is fixedly provided at the middle position of the bottom of the second control frame (501); a connecting shaft (503) is fixedly provided at the output end of the first motor (504); and two ends of the connecting shaft (503) respectively pass through the first control frame (406) and the second control frame (501) and are fixedly connected to the first positioning gear (401) and the second positioning gear (502).

7. A valve processing grinding device according to claim 1, characterized in that: The support and positioning mechanism (1) comprises a support base (101), a rotating disk (102) is rotatably provided at one end of the top of the support base (101), a driving motor (103) is fixedly provided inside the support base (101), and an output end of the driving motor (103) is fixedly connected to the middle position of the bottom of the rotating disk (102).

8. A valve processing grinding device according to claim 7, characterized in that: The height control mechanism (2) comprises a mounting frame (201) fixed to the other end of the top of the support base (101); a positioning screw (202) is rotatably provided at the middle position of the mounting frame (201); a second motor (203) is fixedly provided at the top of the mounting frame (201); an output end of the second motor (203) is fixedly connected to the top of the positioning screw (202); a positioning groove (204) is provided on one side of the top of the mounting frame (201); a lifting seat (205) is threadedly provided on one end of the outer wall of the positioning screw (202); and a lifting frame (206) is fixedly provided on one end of the lifting seat (205) through the positioning groove (204).

9. A valve processing grinding device according to claim 8, characterized in that: One end of the bottom of the lifting frame (206) is fixedly connected to the top of the positioning frame (301) through a connecting frame (302); a driving shaft (304) is rotatably provided at the middle position of the positioning frame (301); the bottom end of the driving shaft (304) is fixedly connected to the middle position of the positioning helical gear ring (307); a third motor (303) is fixedly provided at one end of the top of the lifting frame (206); an output end of the third motor (303) passes through the lifting frame (206) and is fixedly connected to the top of the driving shaft (304).

10. A valve processing grinding device according to claim 9, characterized in that: An intelligent control panel is fixedly provided on one side of the support base (101), and the drive motor (103), the first motor (504), the second motor (203) and the third motor (303) are all electrically connected to an external power supply via the intelligent control panel.

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