Valve grinding machine with positioning device

Abstract

The invention relates to the technical field of valve grinding, and provides a valve grinding machine with a positioning device.The valve grinding machine comprises a fixed rack, sliding rails, a positioning assembly, a supporting rack, a position adjusting assembly, a clamping assembly, a bearing frame and a grinding assembly with a dust removal function, the sliding rails are fixedly installed on the two sides of the interior of the fixed rack, and the positioning assembly is slidably installed on the sliding rails; the supporting rack is fixedly installed in the fixed rack, the position adjusting assembly is installed on the supporting rack, the clamping assembly is installed on the position adjusting assembly, the bearing frame is fixedly installed on the fixed rack, the bearing frame is located above the position adjusting assembly, and the grinding assembly is installed on the bearing frame. The problems that in the prior art, due to the fact that the shape of a valve generally has a certain inclination angle, the valve is difficult to fix stably, uneven contact occurs between a grinding wheel and the ground end face of the valve, and the ground valve is not high are solved.

Description

Technical Field

[0001] The invention relates to the technical field of valve grinding, and in particular to a valve grinding machine with a positioning device. Background Art

[0002] A valve grinder is a device specially used for grinding the surface of valves. This device usually has high precision and speed, and can grind the surface of the valve to a very smooth state to ensure that the sealing performance of the valve reaches the best state. When grinding the valve, you first need to clean the valve to remove dirt and impurities on the surface of the valve. According to the specific situation of the valve, select appropriate grinding parameters, such as grinding pressure, grinding speed and grinding time, and then place the valve in the valve grinder, and ensure that the position of the valve is correct. At this time, start the grinding equipment to start grinding the valve. After the end, clean up the grinding residue on the surface of the valve.

[0003] During the valve grinding process, if the position of the valve is uncertain, the distance between the valve and the grinder may be too large or too small, making it difficult for the valve to fully enter the grinding area, resulting in uneven distribution of grinding pressure, which in turn leads to uneven valve grinding. This may affect the sealing performance of the valve, thereby affecting the normal operation of the entire system and greatly reducing the grinding quality.

[0004] And if the valve position is not fixed during the grinding process, the valve may suddenly shift during grinding. When the valve shifts, the grinding pressure and force distribution may change. At the same time, the grinding wheel or grinding head may also collide violently with the valve, making the grinding process unstable and causing damage to the valve, thus affecting the grinding quality of the valve. Summary of the invention

[0005] The present invention proposes a valve grinding machine with a positioning device, which solves the problem in the related art that the valve shape generally has a certain inclination angle, which makes it difficult to stably fix the valve, resulting in uneven contact between the grinding wheel and the end face of the valve being ground, resulting in the low height of the ground valve.

[0006] The technical solution of the present invention is as follows: A valve grinding machine with a positioning device, comprising: Fixed rack; Slide rails, the slide rails are fixedly installed on both sides of the fixed frame; A positioning assembly, the positioning assembly is slidably mounted on the slide rail and is used to adjust the positioning of the valve to be ground; A supporting frame, wherein the supporting frame is fixedly installed inside the fixed frame; A position adjustment component, which is mounted on the support frame and is used to adjust the position of the end face of the valve to be polished; A clamping assembly, the clamping assembly is mounted on the positioning assembly and is used to clamp the valve to be polished; A carrier frame, the carrier frame is fixedly mounted on the fixed frame, and the carrier frame is located above the positioning assembly; A grinding component with a dust cleaning function is installed on the support frame and is used for grinding the valve.

[0007] Based on the above solution, the positioning component includes: A movable frame, wherein the movable frame is slidably mounted on the slide rail; A positioning cylinder, the positioning cylinder is fixedly mounted on the mobile frame; A positioning frame, the positioning frame is slidably mounted inside the positioning cylinder; A first electric cylinder, wherein the first electric cylinder is fixedly mounted on the positioning cylinder, and an output end of the first electric cylinder is fixedly connected to the positioning frame; A pushing part is installed inside the fixed frame and is used to drive the movable frame to move.

[0008] On the basis of the above scheme, the pushing part comprises: A screw rod, the screw rod being rotatably mounted inside the fixed frame; A first motor, wherein the first motor is fixedly mounted on the fixed frame, and an output end of the first motor is fixedly connected to the screw rod; A nut is threadably sleeved on the screw rod and is fixedly connected to the movable frame.

[0009] On the basis of the above scheme, the positioning component includes: A carrying plate, the carrying plate is fixedly mounted on the supporting frame; A mounting plate, wherein the mounting plate is fixedly mounted on the carrying plate via a spherical joint; An annular groove, the bottom of the mounting plate is fixedly provided with the annular groove; A positioning portion, the positioning portion is mounted on the carrying plate and is used to determine the position of the mounting plate; A fixing portion is installed on the positioning portion and is used to fix the position of the positioning portion.

[0010] On the basis of the above solution, the positioning part includes: A mounting tube, a plurality of the mounting tubes are fixedly mounted at equal angles on the carrier plate; A positioning rod, wherein each of the mounting tubes is slidably mounted with the positioning rod; A retaining ring, each of the positioning rods is fixedly mounted with the retaining ring, and the retaining ring is located in the middle position inside the mounting tube; A spring, each of the retaining rings is fixedly mounted with the spring, the spring is sleeved on the positioning rod, and the spring is fixedly connected to the inner bottom wall of the mounting tube; A contact ball is fixedly mounted on the top of each positioning rod.

[0011] On the basis of the above solution, the fixing part comprises: A fixing frame, the bottom of each mounting tube is fixedly mounted with the fixing frame, and the fixing frame is slidably matched with the positioning rod; A second electric cylinder, each of the fixing frames is symmetrically and fixedly mounted with the second electric cylinder, and each of the second electric cylinders is arranged obliquely; A fixed block is fixedly mounted on the output end of each of the second electric cylinders.

[0012] On the basis of the above scheme, the clamping assembly comprises: A third electric cylinder, the third electric cylinder is fixedly mounted on the mounting plate at an equal angle; A clamping frame, on which the output end of each of the third electric cylinders is fixedly mounted; A clamping block, on each of the clamping frames the clamping block is fixedly mounted; A stabilizing portion is mounted on the supporting frame and is used to maintain the stability of the mounting plate during the grinding process.

[0013] On the basis of the above scheme, the stabilizing part comprises: A shell, the shell is symmetrically and fixedly mounted on the support frame, and the shell is located on both sides of the carrying plate; A stabilizing frame, wherein the stabilizing frame is slidably mounted inside the two shells; Arc grooves, two arc grooves are symmetrically and fixedly installed at the bottom of the mounting plate, and the arc grooves are located on the upper part of the stabilizing frame; A positioning plate, the upper parts of the two stabilizing frames are fixedly mounted with the positioning plate, and the positioning plate is adapted to the arc-shaped groove; A fourth electric cylinder is fixedly mounted on the bottom of the two shells, and an output end of the fourth electric cylinder is fixedly connected to the stabilizing frame.

[0014] On the basis of the above scheme, the grinding assembly comprises: A sliding frame, wherein the sliding frame is slidably mounted on the bearing frame; A fifth electric cylinder, the fifth electric cylinder is fixedly mounted on the carrier frame, and an output end of the fifth electric cylinder is fixedly connected to the sliding frame; A fixed gear, the fixed gear is fixedly mounted on the bottom of the sliding frame; A rotating cylinder, wherein the rotating cylinder is rotatably mounted on the bottom of the sliding frame, and the fixed gear is located inside the rotating cylinder; A gear ring, the gear ring being fixedly mounted on the upper part of the rotating cylinder; A second motor, the second motor is fixedly mounted on the sliding frame; A driving gear, the driving gear is fixedly mounted on the second motor, and the driving gear is meshed with the gear ring; A grinding part is installed on the rotating cylinder and is used for grinding the valve.

[0015] On the basis of the above scheme, the grinding part includes: A first gear, wherein a plurality of the first gears are installed in the rotating cylinder for equiangular rotation, and each of the first gears is meshed with the fixed gear; Second gears: a plurality of second gears are installed in the rotating cylinder for equal-angle rotation, each of the second gears is meshed with the fixed gear, and the plurality of second gears and the plurality of first gears are staggered with each other; A grinding disc, the bottom of each of the first gears can be detachably mounted with the grinding disc; A cleaning brush is fixedly mounted on the bottom of each of the second gears.

[0016] The working principle and beneficial effects of the present invention are: 1. In the present invention, when the mounting plate is in the normal position, the mounting plate and the bearing plate remain relatively parallel. At this time, the spring is in a compressed state, and the contact ball at the top of the positioning rod is pressed on the annular groove under the action of the spring. As the position of the mounting plate is adjusted, the position of the annular groove is also adjusted accordingly. The annular groove can push the positioning rods at different positions through the contact balls. These positioning rods move downward or upward along the axis of the mounting tube due to the adjustment of the mounting plate, and the spring in each mounting tube is also stretched or compressed accordingly, thereby ensuring that the contact ball on each positioning rod is always in contact with the annular groove, thereby improving the stability during adjustment.

[0017] 2. In the present invention, the fourth electric cylinder drives the stabilizing frame to move, and the stabilizing frame drives the positioning plate to move until the positioning plate engages with the arc groove, and then the fourth electric cylinder can be closed and locked to fix the positions of the positioning plate and the arc groove, thereby making the entire grinding process more stable and reducing the possibility of vibration during the grinding process.

[0018] 3. In the present invention, as the rotating cylinder rotates, the rotating cylinder drives the first gear and the second gear to rotate around the axial position of the rotating cylinder. Through the cooperation of the driving gear, the first gear and the second gear start to rotate, and the first gear drives the grinding disk to rotate, thereby grinding the end face of the valve. At the same time, the second gear drives the cleaning brush to rotate, thereby brushing out the ground waste residue, thereby avoiding the waste residue from adhering to the end face, reducing the influence of the waste residue on grinding, and improving the grinding accuracy.

[0019] 4. In the present invention, by setting the positioning component and the adjustment component, the positioning of the valve can be easily achieved, and the position of the polished end face of the valve and the polishing component can be quickly determined, thereby improving the polishing efficiency. By cooperating with the stabilizing part and the fixing part, the position of the mounting plate can be quickly and stably fixed, thereby fixing the position of the valve, thereby improving the stability of the valve during the polishing process and improving the accuracy of valve grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of a three-dimensional structure in cross section in the present invention; Figure 3 It is a cross-sectional structural schematic diagram of the positioning component in the present invention; Figure 4 It is a cross-sectional structural schematic diagram of the cooperation between the positioning assembly and the clamping assembly in the present invention; Figure 5 It is a cross-sectional structural schematic diagram of the coordination between the positioning assembly and the stabilizing part in the present invention; Figure 6 It is a cross-sectional structural schematic diagram of the cooperation between the positioning part and the fixing part in the present invention; Figure 7 It is a schematic cross-sectional structural diagram of the clamping assembly in the present invention; Figure 8 It is a schematic cross-sectional structure diagram of the stabilizing portion in the present invention; Fig. 9 It is a schematic cross-sectional structural diagram of the grinding assembly in the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of the grinding part in the present invention.

[0022] The numbers in the figure represent: 1, fixed frame; 2, slide rail; 3, support frame; 4, bearing frame; 5, mobile frame; 6, positioning cylinder; 7, positioning frame; 8, first electric cylinder; 9, screw; 10, first motor; 11, nut; 12, bearing plate; 13, mounting plate; 14, ball joint; 15, annular groove; 16, mounting cylinder; 17, positioning rod; 18, retaining ring; 19, spring; 20, contact ball; 21, fixed frame; 22, first Second electric cylinder; 23, fixed block; 24, third electric cylinder; 25, clamping frame; 26, clamping block; 27, housing; 28, stabilizing frame; 29, arc groove; 30, positioning plate; 31, fourth electric cylinder; 32, sliding frame; 33, fifth electric cylinder; 34, fixed gear; 35, rotating cylinder; 36, gear ring; 37, second motor; 38, driving gear; 39, first gear; 40, second gear; 41, grinding disc; 42, cleaning brush; DETAILED DESCRIPTION The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions 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 creative work are within the scope of protection of the present invention.

[0023] like Figures 1 to 10 As shown, this embodiment proposes a valve grinding machine with a positioning device, including a fixed frame 1, a slide rail 2, a positioning assembly, a supporting frame 3, an adjustment assembly, a clamping assembly, a bearing frame 4 and a grinding assembly with a dust cleaning function. The slide rails 2 are fixedly installed on both sides of the interior of the fixed frame 1. The positioning assembly is slidably installed on the slide rails 2 to adjust the positioning of the valve to be ground. The positioning assembly includes a moving frame 5, a positioning cylinder 6, a positioning frame 7, a first electric cylinder 8 and a pushing part. The moving frame 5 is slidably installed on the slide rail 2, the positioning cylinder 6 is fixedly installed on the moving frame 5, the positioning frame 7 is slidably installed inside the positioning cylinder 6, the first electric cylinder 8 is fixedly installed on the positioning cylinder 6, the output end of the first electric cylinder 8 is fixedly connected to the positioning frame 7, and the pushing part is installed inside the fixed frame 1 to drive the moving frame 5 to move.

[0024] Specifically, when polishing the valve, first install the valve on the clamping assembly, and make the side of the valve to be polished face upwards. After fixing the valve, start the pushing part, and push the moving frame 5 to move along the slide rail 2 toward the position of the supporting frame 3 through the pushing part. The moving frame 5 drives the positioning cylinder 6 to move. When the positioning cylinder 6 drives the positioning frame 7 to move above the valve, close the pushing part, and then fix the position of the moving frame 5. At this time, start the first electric cylinder 8, and the first electric cylinder 8 drives the positioning frame 7 to move downward along the axial direction of the positioning cylinder 6 until the lower end of the positioning frame 7 contacts the end face of the valve to be polished. Since the valve shape generally has a certain inclination angle, When the valve is clamped on the clamping assembly, the upward end face of the valve to be polished is actually inclined, and the lower end face of the positioning frame 7 is set to a horizontal position. When the lower end of the positioning frame 7 contacts the end face of the valve to be polished, a certain relative sliding occurs between the two, thereby adjusting the end face of the valve to be polished to a horizontal level. At this time, the position adjustment assembly is adjusted in coordination with the adjustment of the valve position, so as to provide strong support for the valve during the polishing process, and then the horizontal position of the end face of the valve to be polished is fixed by the position adjustment assembly, and the valve is firmly fixed. At this time, the polishing assembly is moved to the working position, and the end of the valve to be polished can be polished by the polishing assembly.

[0025] The above, such as Figure 2 As shown, the pushing part includes a screw rod 9, a first motor 10 and a nut 11. The screw rod 9 is rotatably installed inside the fixed frame 1, the first motor 10 is fixedly installed on the fixed frame 1, the output end of the first motor 10 is fixedly connected to the screw rod 9, the nut 11 is threadedly sleeved on the screw rod 9, and the nut 11 is fixedly connected to the movable frame 5.

[0026] Specifically, when the valve position needs to be adjusted, the movable frame 5 needs to be moved to the working position. At this time, the first motor 10 is started, and the first motor 10 drives the screw 9 to rotate, the screw 9 drives the nut 11 to move, and the nut 11 drives the movable frame 5 to move until the movable frame 5 moves to the working position. When the valve is polished, the movable frame 5 can be moved back to its original position.

[0027] like Figures 4 to 7 As shown, the supporting frame 3 is fixedly installed inside the fixed frame 1, and the positioning assembly is installed on the supporting frame 3 for adjusting the position of the end face of the valve to be polished. The positioning assembly includes a bearing plate 12, a mounting plate 13, an annular groove 15, a positioning portion and a fixing portion. The bearing plate 12 is fixedly installed on the supporting frame 3, and the mounting plate 13 is fixedly installed on the bearing plate 12 through a spherical joint 14. An annular groove 15 is fixedly opened at the bottom of the mounting plate 13. The positioning portion is installed on the bearing plate 12 for determining the position of the mounting plate 13, and the fixing portion is installed on the positioning portion for fixing the position of the positioning portion.

[0028] Specifically, when adjusting the valve position, as the valve position is adjusted, the valve drives the mounting plate 13 to adjust its position with the supporting plate 12 through the spherical joint 14, and the annular groove 15 also moves accordingly. The positioning part also starts to move synchronously under the action of the annular groove 15, so that the entire adjustment process is smoother. After adjusting the valve position, the fixing is started to fix the position of the positioning part. At this time, the top of the positioning part abuts against the annular groove 15, and then the position of the mounting plate 13 is fixed through the annular groove 15, thereby fixing the position of the valve.

[0029] The above, such as Figure 6 As shown, the positioning part includes a mounting tube 16, a positioning rod 17, a retaining ring 18, a spring 19 and a contact ball 20. A plurality of mounting tubes 16 are fixedly mounted at equal angles on the carrier plate 12. A positioning rod 17 is slidably mounted inside each mounting tube 16. A retaining ring 18 is fixedly mounted on each positioning rod 17. The retaining ring 18 is located in the middle position inside the mounting tube 16. A spring 19 is fixedly mounted on each retaining ring 18. The spring 19 is sleeved on the positioning rod 17. The spring 19 is fixedly connected to the inner bottom wall of the mounting tube 16. A contact ball 20 is fixedly mounted on the top of each positioning rod 17.

[0030] Specifically, when the mounting disk 13 is in the normal position, the mounting disk 13 and the supporting disk 12 remain relatively parallel. At this time, the retaining ring 18 on the positioning rod 17 is in the middle of the mounting tube 16. At this time, the spring 19 is in a compressed state. The contact ball 20 at the top of the positioning rod 17 is pressed on the annular groove 15 under the action of the spring 19. As the position of the mounting disk 13 is adjusted, the position of the annular groove 15 is also adjusted accordingly. The annular groove 15 can push the positioning rods 17 at different positions through the contact ball 20. These positioning rods 17 move downward or upward along the axis of the mounting tube 16 due to the adjustment of the mounting disk 13, and the spring 19 in each mounting tube 16 is also stretched or compressed accordingly, thereby ensuring that the contact ball 20 on each positioning rod 17 is always in contact with the annular groove 15.

[0031] The above, such as Figure 6 As shown, the fixing part includes a fixing frame 21, a second electric cylinder 22 and a fixing block 23. The fixing frame 21 is fixedly installed on the bottom of each mounting tube 16. The fixing frame 21 is slidably matched with the positioning rod 17. The second electric cylinder 22 is symmetrically and fixedly installed on each fixing frame 21. Each second electric cylinder 22 is arranged at an angle, and a fixing block 23 is fixedly installed on the output end of each second electric cylinder 22.

[0032] Specifically, after adjusting the position of the valve, the position between the positioning rod 17 and the mounting tube 16 can be fixed. At this time, the second electric cylinder 22 is started, and the second electric cylinder 22 drives the fixing block 23 to move. When the fixing block 23 contacts the positioning rod 17, the second electric cylinder 22 is closed and locked, thereby fixing the position of the positioning rod 17. The inclined fixing block 23 forms a certain angle with the moving direction of the fixing frame 21, thereby improving the fixing effect and reducing the possibility of displacement between the positioning rod 17 and the mounting tube 16 during the grinding process.

[0033] like Figure 7 , Figure 8 As shown, the clamping assembly is installed on the positioning assembly and is used to clamp the valve to be polished. The clamping assembly includes a third electric cylinder 24, a clamping frame 25, a clamping block 26 and a stabilizing portion. The third electric cylinder 24 is fixedly installed at an equal angle on the mounting plate 13. A clamping frame 25 is fixedly installed on the output end of each third electric cylinder 24. A clamping block 26 is fixedly installed on each clamping frame 25. The stabilizing portion is installed on the supporting frame 3 and is used to maintain the stability of the mounting plate 13 during the polishing process.

[0034] Specifically, when clamping the valve to be polished, the valve is placed on the mounting plate 13. At this time, the side of the valve that contacts the mounting plate 13 maintains stable contact with the mounting plate 13. At this time, the third electric cylinder 24 is started, and the third electric cylinder 24 drives the clamping frame 25 to move, and the clamping frame 25 drives the clamping block 26 to move. By setting the clamping block 26, the position of the valve can be fixed.

[0035] It should be added that, in order to reduce the vibration that may be generated during the grinding process, a layer of flexible pads such as rubber pads can be added to the end of the clamping block 26 to achieve a vibration-absorbing effect and reduce the impact of sudden vibrations on grinding.

[0036] The above, such as Figure 7 , Figure 8 As shown, the stabilizing part includes an outer shell 27, a stabilizing frame 28, an arc groove 29, a positioning plate 30 and a fourth electric cylinder 31. The outer shell 27 is symmetrically and fixedly installed on the supporting frame 3. The outer shell 27 is located on both sides of the supporting plate 12. Stabilizing frames 28 are slidably installed inside the two outer shells 27. Two arc grooves 29 are symmetrically and fixedly installed on the bottom of the mounting plate 13. The arc grooves 29 are located on the upper part of the stabilizing frames 28. Positioning plates 30 are fixedly installed on the upper part of the two stabilizing frames 28. The positioning plates 30 are adapted to the arc grooves 29. The fourth electric cylinder 31 is fixedly installed on the bottom of the two outer shells 27, and the output end of the fourth electric cylinder 31 is fixedly connected to the stabilizing frame 28.

[0037] Specifically, during the grinding process, in order to make the position of the mounting plate 13 more stable, the fourth electric cylinder 31 is started, the fourth electric cylinder 31 drives the stabilizing frame 28 to move, and the stabilizing frame 28 drives the positioning plate 30 to move until the positioning plate 30 engages with the arc groove 29. The fourth electric cylinder 31 can be closed and locked to fix the positions of the positioning plate 30 and the arc groove 29, thereby making the entire grinding process more stable.

[0038] like Fig. 9 , Fig.10 As shown, the carrier frame 4 is fixedly mounted on the fixed frame 1, the carrier frame 4 is located above the positioning assembly, the grinding assembly is mounted on the carrier frame 4, and is used to grind the valve, the grinding assembly includes a sliding frame 32, a fifth electric cylinder 33, a fixed gear 34, a rotating cylinder 35, a gear ring 36, a second motor 37, a driving gear 38 and a grinding portion, the sliding frame 32 is slidably mounted on the carrier frame 4, the fifth electric cylinder 33 is fixedly mounted on the carrier frame 4, the output end of the fifth electric cylinder 33 is fixedly connected to the sliding frame 32, the fixed gear 34 is fixedly mounted on the bottom of the sliding frame 32, the rotating cylinder 35 is rotatably mounted on the bottom of the sliding frame 32, the fixed gear 34 is located inside the rotating cylinder 35, the gear ring 36 is fixedly mounted on the upper part of the rotating cylinder 35, the second motor 37 is fixedly mounted on the sliding frame 32, the driving gear 38 is fixedly mounted on the second motor 37, the driving gear 38 is meshed with the gear ring 36, and the grinding portion is mounted on the rotating cylinder 35, and is used to grind the valve.

[0039] Specifically, after the position of the valve is fixed and the end face of the valve to be polished is adjusted, the fifth electric cylinder 33 is started, and the fifth electric cylinder 33 drives the sliding frame 32 to move until the fifth electric cylinder 33 drives the sliding frame 32 to move to the working position. At this time, the grinding part contacts the end face of the valve, and the second motor 37 is started, and the second motor 37 drives the gear ring 36 to rotate, and the gear ring 36 drives the rotating cylinder 35 to rotate, thereby driving the grinding part to move through the cooperation of the driving gear 38, so as to polish the end face of the valve.

[0040] The above, such as Fig.10 As shown, the grinding part includes a first gear 39, a second gear 40, a grinding disc 41 and a cleaning brush 42. A plurality of first gears 39 are installed inside the rotating cylinder 35 for equal angle rotation, and each first gear 39 is meshed with the fixed gear 34. A plurality of second gears 40 are installed inside the rotating cylinder 35 for equal angle rotation, and each second gear 40 is meshed with the fixed gear 34. The plurality of second gears 40 and the plurality of first gears 39 are staggered with each other. The grinding disc 41 is detachably installed at the bottom of the plurality of first gears 39, and a cleaning brush 42 is fixedly installed at the bottom of the plurality of second gears 40.

[0041] Specifically, when grinding the valve end face, first install the grinding disc 41 on the first gear 39, and install the cleaning brush 42 on the second gear 40. As the rotating cylinder 35 rotates, the rotating cylinder 35 drives the first gear 39 and the second gear 40 to rotate around the axial position of the rotating cylinder 35. Through the cooperation of the driving gear 38, the first gear 39 and the second gear 40 start to rotate, and the first gear 39 drives the grinding disc 41 to rotate, thereby grinding the end face of the valve. At the same time, the second gear 40 drives the cleaning brush 42 to rotate, thereby brushing out the ground waste residue, thereby preventing the waste residue from adhering to the end face, reducing the influence of the waste residue on grinding, and improving the grinding accuracy.

[0042] To sum up, when polishing the valve, first place the valve on the mounting plate 13 with the side of the valve to be polished facing upward. At this time, the side of the valve in contact with the mounting plate 13 maintains stable contact with the mounting plate 13. At this time, start the third electric cylinder 24, the third electric cylinder 24 drives the clamping frame 25 to move, and the clamping frame 25 drives the clamping block 26 to move. By setting the clamping block 26, the position of the valve can be fixed.

[0043] After fixing the valve position, it is necessary to adjust the position of the valve end face. At this time, it is necessary to move the movable frame 5 to the working position, start the first motor 10, the first motor 10 drives the screw 9 to rotate, the screw 9 drives the nut 11 to move, the nut 11 drives the movable frame 5 to move, the movable frame 5 drives the positioning cylinder 6 to move, and the positioning cylinder 6 drives the positioning frame 7 to move above the valve, close and lock the first motor 10, fix the position of the movable frame 5, and start the first electric cylinder 8 at this time. The first electric cylinder 8 drives the positioning frame 7 to move downward along the axial direction of the positioning cylinder 6 until the lower end of the positioning frame 7 contacts with the end face of the valve to be polished. Since the valve shape generally has a certain inclination angle, when the valve is clamped on the mounting plate 13, the upward end face of the valve to be polished is actually inclined, and the lower end face of the positioning frame 7 is set to a horizontal position. When the lower end of the positioning frame 7 contacts with the end face of the valve to be polished, a certain relative sliding occurs between the two, thereby adjusting the end face of the valve to be polished to a horizontal position.

[0044] When the mounting plate 13 is in the normal position, the mounting plate 13 and the supporting plate 12 remain relatively parallel. At this time, the retaining ring 18 on the positioning rod 17 is in the middle of the mounting tube 16. At this time, the spring 19 is in a compressed state. The contact ball 20 at the top of the positioning rod 17 is pressed on the annular groove 15 under the action of the spring 19. When adjusting the valve position, as the valve position is adjusted, the valve drives the mounting plate 13 to adjust its position with the supporting plate 12 through the spherical joint 14. At this time, the annular groove 15 also moves accordingly. The annular groove 15 can push the positioning rods 17 at different positions through the contact balls 20. These positioning rods 17 move downward or upward along the axis of the mounting tube 16 due to the adjustment of the mounting plate 13, and the spring 19 in each mounting tube 16 is also stretched or compressed accordingly, thereby ensuring that the contact ball 20 on each positioning rod 17 is always in contact with the annular groove 15.

[0045] After adjusting the position of the valve, the position between the positioning rod 17 and the mounting tube 16 can be fixed. At this time, the second electric cylinder 22 is started, and the second electric cylinder 22 drives the fixing block 23 to move. When the fixing block 23 contacts the positioning rod 17, the second electric cylinder 22 is closed and locked, thereby fixing the position of the positioning rod 17, and the inclined fixing block 23 forms a certain angle with the moving direction of the fixing frame 21, thereby improving the fixing effect and reducing the possibility of displacement between the positioning rod 17 and the mounting tube 16 during the grinding process. At the same time, in order to make the position of the mounting plate 13 more stable, the fourth electric cylinder 31 is started, and the fourth electric cylinder 31 drives the stabilizing frame 28 to move, and the stabilizing frame 28 drives the positioning plate 30 to move until the positioning plate 30 is engaged with the arc groove 29, and the fourth electric cylinder 31 can be closed and locked to fix the position of the positioning plate 30 and the arc groove 29, thereby fixing the position of the valve, making the entire grinding process more stable.

[0046] After the position of the valve is fixed and the end face of the valve to be polished is adjusted, the movable frame 5 is moved back to its original position, the polishing disc 41 is installed on the first gear 39, the cleaning brush 42 is installed on the second gear 40, and the fifth electric cylinder 33 is started. The fifth electric cylinder 33 drives the sliding frame 32 to move until the fifth electric cylinder 33 drives the sliding frame 32 to move to the working position. At this time, the polishing disc 41 contacts the end face of the valve, and the second motor 37 is started at this time. The second motor 37 drives the gear ring 36 to rotate, and the gear ring 36 drives the rotating cylinder 35 to rotate. As the rotating cylinder 35 rotates, the rotating cylinder 35 drives the first gear 39 and the second gear 40 to rotate around the axial position of the rotating cylinder 35. Through the cooperation of the driving gear 38, the first gear 39 and the second gear 40 start to rotate. The first gear 39 drives the grinding disc 41 to rotate, so as to grind the end face of the valve. At the same time, the second gear 40 drives the cleaning brush 42 to rotate, so as to brush out the ground waste residue, thereby preventing the waste residue from adhering to the end face, reducing the influence of the waste residue on the grinding, and improving the grinding accuracy.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A valve grinding machine with a positioning device, characterized in that: include: Fixed frame (1); Slide rails (2), the slide rails (2) being fixedly mounted on both sides of the interior of the fixed frame (1); A positioning assembly, the positioning assembly being slidably mounted on the slide rail (2) and used for adjusting the positioning of the valve to be ground; A supporting frame (3), the supporting frame (3) being fixedly mounted inside the fixed frame (1); A position adjustment component, the position adjustment component is mounted on the support frame (3) and is used to adjust the position of the end face of the valve to be polished; A clamping assembly, the clamping assembly is mounted on the positioning assembly and is used to clamp the valve to be polished; A carrier frame (4), the carrier frame (4) being fixedly mounted on the fixed frame (1), the carrier frame (4) being located above the positioning assembly; A grinding component with a dust cleaning function, the grinding component is mounted on the carrier frame (4) and is used for grinding the valve.

2. A valve grinding machine with a positioning device according to claim 1, characterized in that: The positioning component comprises: A movable frame (5), the movable frame (5) being slidably mounted on the slide rail (2); A positioning cylinder (6), wherein the positioning cylinder (6) is fixedly mounted on the movable frame (5); A positioning frame (7), the positioning frame (7) being slidably mounted inside the positioning cylinder (6); a first electric cylinder (8), the first electric cylinder (8) being fixedly mounted on the positioning cylinder (6), the output end of the first electric cylinder (8) being fixedly connected to the positioning frame (7); A pushing part, the pushing part is installed inside the fixed frame (1) and is used to drive the movable frame (5) to move.

3. A valve grinding machine with a positioning device according to claim 2, characterized in that: The driving part comprises: A screw rod (9), the screw rod (9) being rotatably mounted inside the fixed frame (1); a first motor (10), the first motor (10) being fixedly mounted on the fixed frame (1), the output end of the first motor (10) being fixedly connected to the screw rod (9); A nut (11), wherein the nut (11) is threadably sleeved on the screw rod (9), and the nut (11) is fixedly connected to the movable frame (5).

4. A valve grinding machine with a positioning device according to claim 3, characterized in that: The positioning component comprises: A carrying plate (12), the carrying plate (12) being fixedly mounted on the supporting frame (3); A mounting plate (13), wherein the mounting plate (13) is fixedly mounted on the supporting plate (12) via a spherical joint (14); An annular groove (15), the bottom of the mounting plate (13) being fixedly provided with the annular groove (15); a positioning portion, the positioning portion being mounted on the carrying plate (12) and being used to determine the position of the mounting plate (13); A fixing portion is installed on the positioning portion and is used to fix the position of the positioning portion.

5. A valve grinding machine with a positioning device according to claim 4, characterized in that: The positioning portion comprises: A mounting tube (16), a plurality of the mounting tubes (16) being fixedly mounted at equal angles on the carrier plate (12); A positioning rod (17), wherein each of the mounting tubes (16) is slidably mounted with the positioning rod (17); a retaining ring (18), wherein each of the positioning rods (17) is fixedly mounted with the retaining ring (18), and the retaining ring (18) is located at a middle position inside the mounting tube (16); A spring (19), wherein each of the retaining rings (18) is fixedly mounted with the spring (19), the spring (19) is sleeved on the positioning rod (17), and the spring (19) is fixedly connected to the inner bottom wall of the mounting tube (16); A contact ball (20) is fixedly mounted on the top of each positioning rod (17).

6. A valve grinding machine with a positioning device according to claim 5, characterized in that: The fixing portion comprises: A fixing frame (21), the fixing frame (21) being fixedly mounted on the bottom of each of the mounting tubes (16), the fixing frame (21) being slidably matched with the positioning rod (17); A second electric cylinder (22), each of the fixing frames (21) being symmetrically and fixedly mounted with the second electric cylinder (22), and each of the second electric cylinders (22) being arranged at an angle; A fixed block (23), the fixed block (23) being fixedly mounted on the output end of each second electric cylinder (22).

7. A valve grinding machine with a positioning device according to claim 6, characterized in that: The clamping assembly comprises: A third electric cylinder (24), the third electric cylinder (24) being fixedly mounted at an equal angle on the mounting plate (13); A clamping frame (25), the clamping frame (25) being fixedly mounted on the output end of each of the third electric cylinders (24); A clamping block (26), wherein each of the clamping frames (25) is fixedly mounted with the clamping block (26); A stabilizing portion, the stabilizing portion being mounted on the supporting frame (3) and being used to maintain the stability of the mounting plate (13) during the grinding process.

8. A valve grinding machine with a positioning device according to claim 7, characterized in that: The stabilizing portion comprises: A shell (27), the shell (27) being symmetrically and fixedly mounted on the supporting frame (3), and the shell (27) being located on both sides of the carrying plate (12); A stabilizing frame (28), wherein the stabilizing frame (28) is slidably mounted inside the two shells (27); Arc grooves (29), two arc grooves (29) are symmetrically and fixedly mounted on the bottom of the mounting plate (13), and the arc grooves (29) are located on the upper part of the stabilizing frame (28); A positioning plate (30), the positioning plate (30) being fixedly mounted on the upper part of the two stabilizing frames (28), the positioning plate (30) being adapted to fit the arc-shaped groove (29); A fourth electric cylinder (31), the bottom of each of the two housings (27) being fixedly mounted with the fourth electric cylinder (31), the output end of the fourth electric cylinder (31) being fixedly connected to the stabilizing frame (28).

9. A valve grinding machine with a positioning device according to claim 8, characterized in that: The grinding assembly comprises: A sliding frame (32), the sliding frame (32) being slidably mounted on the supporting frame (4); a fifth electric cylinder (33), the fifth electric cylinder (33) being fixedly mounted on the bearing frame (4), the output end of the fifth electric cylinder (33) being fixedly connected to the sliding frame (32); A fixed gear (34), the fixed gear (34) being fixedly mounted on the bottom of the sliding frame (32); A rotating cylinder (35), the rotating cylinder (35) being rotatably mounted on the bottom of the sliding frame (32), and the fixed gear (34) being located inside the rotating cylinder (35); A gear ring (36), the gear ring (36) being fixedly mounted on the upper portion of the rotating cylinder (35); a second motor (37), the second motor (37) being fixedly mounted on the sliding frame (32); a driving gear (38), the driving gear (38) being fixedly mounted on the second motor (37), the driving gear (38) being meshed with the gear ring (36); A grinding part, which is mounted on the rotating cylinder (35) and is used to grind the valve.

10. A valve grinding machine with a positioning device according to claim 9, characterized in that: The grinding section comprises: A first gear (39), wherein a plurality of the first gears (39) are equiangularly rotatably mounted inside the rotating cylinder (35), and each of the first gears (39) is meshed with the fixed gear (34); A second gear (40), wherein a plurality of the second gears (40) are equiangularly rotatably mounted inside the rotating cylinder (35), each of the second gears (40) is meshed with the fixed gear (34), and the plurality of the second gears (40) and the plurality of the first gears (39) are staggered with each other; A grinding disc (41), the grinding disc (41) being detachably mounted on the bottom of each of the plurality of first gears (39); A cleaning brush (42), wherein the bottom of each of the plurality of second gears (40) is fixedly mounted with the cleaning brush (42).

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