A ball valve hard seal valve seat processing lathe and processing method

Abstract

The present invention relates to the technical field of machining lathes, and proposes a machining lathe and machining method for a hard-sealed valve seat of a ball valve, wherein a machining lathe for machining a hard-sealed valve seat of a ball valve comprises a mounting base, a machining box is provided on the top of the mounting base, a plurality of lathe machining ends are provided in the machining box, openings are provided on both sides of the machining box, a transfer chamber and a mounting truss are further provided, a transfer chamber is connected between the mounting base and the machining box, a valve seat conveying mechanism with a lifting function is provided in the transfer chamber, mounting trusses are movably provided on both sides of the top of the transfer chamber, and a plurality of position adjustment mechanisms are provided correspondingly between the two mounting trusses. The above technical solution solves the problem that when a machining lathe in the prior art performs a cutting operation on a valve seat, generally only a single clockwise angle adjustment can be performed on the valve seat, and it is not convenient to perform all-round and sequential cutting of the valve seat.

Description

Technical Field

[0001] The present invention relates to the technical field of machining lathes, and in particular to a lathe and a machining method for a hard-sealed valve seat of a ball valve. Background Art

[0002] A ball valve is a conventional device used to control the transport of fluids and particulate matter. It is commonly used in various pipelines or pressure vessels to control the opening and closing of these pipelines or pressure vessels. A ball is used as an opening and closing member within the ball valve. The opening and closing of the valve are achieved by adjusting the position of the ball within the valve. Conventional ball valves are divided into hard-sealed ball valves and soft-sealed ball valves depending on their application. Hard-sealed ball valves are made of metal, while soft-sealed ball valves are made of plastic. During the machining of the hard-sealed valve seat of a ball valve, a lathe is required to perform various cutting and drilling operations on the hard-sealed valve seat. Cutting operations are performed on the interior of the hard-sealed valve seat to facilitate the fit of the ball with the inner wall of the valve seat. Drilling operations on the valve seat facilitate subsequent installation of the valve seat or the insertion of other operating components onto the valve seat. Therefore, when machining the valve seat on a lathe, multiple and varied cutting operations are often required to complete the molding of the valve seat.

[0003] In the prior art, when a ball valve is processed using a machining lathe, the valve seat needs to be processed multiple times by the machining lathe. However, because the area of ​​the valve seat processed each time is different, although the machining end of the machining lathe in the prior art has the ability to adjust the angle, multiple end faces of the valve seat need to be processed. In the prior art, when the valve seat is moved, the valve seat can generally only be adjusted in a single clockwise direction, which is not convenient for performing all-round sequential cutting operations on the valve seat. Summary of the Invention

[0004] The present invention proposes a lathe and a method for processing a hard-sealed valve seat of a ball valve, which solves the problem that the machining lathe in the related art can generally only adjust the valve seat in a single clockwise direction when performing cutting operations on the valve seat, and is not convenient for cutting the valve seat in all directions in sequence.

[0005] The technical solution of the present invention is as follows: a lathe for processing a hard-seal valve seat of a ball valve, comprising a mounting base, a processing box provided on the top of the mounting base, a plurality of lathe processing ends provided in the processing box, openings being provided on both sides of the processing box, and further comprising:

[0006] A transfer chamber is connected between the mounting base and the processing machine box, and a valve seat conveying mechanism with a lifting function is provided in the transfer chamber;

[0007] Mounting trusses are movably provided on both sides of the top of the transfer chamber, and a plurality of position adjustment mechanisms are correspondingly provided between the two mounting trusses, and the position adjustment mechanisms correspond one to one with the lathe processing ends;

[0008] Position clamping mechanism: a plurality of the position clamping mechanisms are provided in the processing machine box, and the position clamping mechanisms correspond one to one to the position adjustment mechanisms.

[0009] In order to transport the valve seat, the valve seat conveying mechanism further includes a distance-adjusting box and a conveyor belt structure. The distance-adjusting box is longitudinally movable in the transfer chamber. Conveying boxes are slidingly arranged on both sides of the interior of the distance-adjusting box. A transverse distance-adjusting component is arranged between the distance-adjusting box and the two conveying boxes, and the conveyor belt structure is arranged in the conveying box.

[0010] In order to adjust the distance between the two conveying boxes, further, the lateral distance adjustment assembly includes a bidirectional screw and a first drive motor. The bidirectional screw is rotatably connected to the distance adjustment box. The bottom of the conveying box is threadedly connected to one side of the bidirectional screw through a threaded plate. The distance adjustment box is provided with a first drive motor, and the output end of the first drive motor is fixedly connected to the bidirectional screw.

[0011] In order to make the distance-adjustable box move longitudinally in the transfer chamber, it further includes a lifting slide and a first electric cylinder. A plurality of the lifting slides are fixedly connected in the transfer chamber, a sliding rod is fixedly connected in the lifting slide, the distance-adjustable box is slidably connected to the plurality of sliding rods, two first electric cylinders are arranged in the transfer chamber, and the output end of the first electric cylinder is fixedly connected to the distance-adjustable box.

[0012] In order to adjust the processing angle of the valve seat, on the basis of this scheme, the position adjustment mechanism includes a rotating frame, a rotating ring sleeve, an elastic clamping assembly and an engagement adjustment assembly. A rotating shaft is rotatably connected in the rotating frame, and driving wheels are provided on both sides of the rotating shaft. A second driving motor is provided on the rotating frame, and the output end of the second driving motor is fixedly connected to the rotating shaft. The rotating ring sleeve is provided through the mounting truss, and an adjustment shaft is rotatably provided in the rotating ring sleeve. The adjustment shaft is fixedly connected to the rotating frame, and the elastic clamping assemblies are provided on the upper and lower sides of the middle part of the rotating frame, and the engagement adjustment assembly is provided between the mounting truss and the two rotating frames.

[0013] In order to clamp the valve seat, based on the above-mentioned scheme, the elastic clamping assembly includes a sliding member and an arc-shaped clamping member, the sliding member is fixedly connected to the rotating frame, spring dampers are provided on the upper and lower sides of the sliding member, and the arc-shaped clamping member is provided on the spring damper.

[0014] In order to make the corresponding two rotating frames flip synchronously, based on the above-mentioned scheme, the engagement adjustment assembly includes an engagement slot and a third drive motor, wherein engagement slots are provided on both sides of one of the rotating frames, and engagement plugs are fixedly connected on both sides of the other rotating frame corresponding to the rotating frame, and a transmission worm gear is provided on the adjustment shaft on one side, and a transmission worm is engaged with the transmission worm gear, the third drive motor is arranged on the mounting truss, and the transmission worm gear is fixedly connected to the output end of the third drive motor.

[0015] In order to clamp the valve seat, on the basis of this solution, further, the position clamping mechanism includes a sliding trough body and a mounting cylinder, a second electric cylinder is arranged in the processing machine box, the output end of the second electric cylinder is fixedly connected to the sliding trough body, the output end of the second electric cylinder drives the sliding trough body to move longitudinally, two mounting parts are slidingly connected in the sliding trough body, a double-headed electric cylinder is arranged in the sliding trough body, the output end of the double-headed electric cylinder is fixedly connected to the mounting part, the mounting cylinder is arranged on one side corresponding to the two mounting parts, and a positioning sensor is arranged in the mounting cylinder.

[0016] In order to adjust the distance between the two mounting trusses, on the basis of the present solution, it further includes a bidirectional screw rod 2 and a fourth drive motor. The bidirectional screw rod 2 is rotatably connected to the top of the transfer chamber, and the mounting truss is slidably connected to the top of the transfer chamber. The mounting truss is threadedly connected to one side of the bidirectional screw rod 2. A fourth drive motor is arranged in the transfer chamber, and the output end of the fourth drive motor is fixedly connected to the bidirectional screw rod 2.

[0017] A method for machining a ball valve hard seal seat, using the above-mentioned ball valve hard seal seat machining lathe, comprises the following steps:

[0018] The working principle and beneficial effects of the present invention are:

[0019] In the present invention, when performing cutting operations on multiple valve seats in sequence, it is first necessary to place the valve seats between the two conveying boxes, and move the valve seats between the corresponding two rotating frames under the action of the two conveyor belt structures. The spacing between the two mounting trusses is adjusted so that the valve seats are fixedly clamped between the two rotating frames. Then, the driving wheel is brought into contact with the valve seat, and the valve seat is rotated between the two rotating parts by driving the driving wheel to rotate. After the two rotating frames are engaged and connected together, the rotating frame is rotated along the center point of the adjusting shaft so that the rotating frame adjusts the valve seat in other directions, thereby facilitating cutting operations on the valve seat in multiple positions. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 1 It is a schematic structural diagram of a partial cross-section of the present invention;

[0022] Figure 2 A schematic structural diagram of a partial cross-section from another perspective of the present invention;

[0023] Figure 3 It is a partial cross-sectional structural diagram of the cooperation among the valve seat conveying mechanism, the position adjustment mechanism and the position clamping mechanism in the present invention;

[0024] Figure 4 This is a schematic structural diagram of the cooperation between the valve seat conveying mechanism and the first electric cylinder in the present invention;

[0025] Figure 5 It is a partial cross-sectional structural diagram of the cooperation between the valve seat conveying mechanism and the first electric cylinder in the present invention;

[0026] Figure 6 It is a partial cross-sectional structural diagram of the cooperation among the installation truss, the position adjustment mechanism and the position clamping mechanism in the present invention;

[0027] Figure 7 For the present invention Figure 6 Schematic diagram of the local enlarged structure at A in the middle;

[0028] Figure 8 Schematic diagram of the structure of the position adjustment mechanism of the present invention;

[0029] Figure 9 This is a schematic diagram of the structure of the mounting frame, the third electric cylinder, the material receiving hopper, the discharge pipe and the annular water injection cylinder in the present invention;

[0030] Figure 10 It is a schematic diagram of the overall structure of the present invention.

[0031] Figure: 1. Mounting base; 2. Lathe processing end; 3. Transfer chamber; 4. Mounting truss; 5. Pitch adjustment box; 6. Conveyor belt structure; 7. Bidirectional screw rod 1; 8. First drive motor; 9. Lifting chute; 10. First electric cylinder; 11. Rotating frame; 12. Rotating shaft; 13. Drive wheel; 14. Second drive motor; 15. Rotating ring; 16. Adjusting shaft; 17. Sliding member; 18. Spring damper; 19. Arc clamping member; 20. Engaging slot; 21. Engaging plug; 22. Third drive motor; 23. Drive worm gear; 24. Drive worm; 25. Sliding trough; 26. Second electric cylinder; 27. Mounting piece; 28. Double-head electric cylinder; 29. ​​Mounting barrel; 30. Positioning sensor; 31. Two-way screw; 32. Fourth drive motor; 33. Mounting bracket; 34. Third electric cylinder; 35. Material receiving hopper; 36. Discharge pipe; 37. Annular water injection cylinder; 38. Water spray pipe; 39. Water inlet interface. DETAILED DESCRIPTION

[0032] 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 embodiments described 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 any creative efforts are within the scope of protection of the present invention.

[0033] Example 1, as Figures 1 to 10 As shown, this embodiment proposes a ball valve hard seal valve seat processing lathe, including a mounting base 1, a processing machine box 40 is provided on the top of the mounting base 1, a plurality of lathe processing ends 2 are provided in the processing machine box 40, and openings are provided on both sides of the processing machine box 40. When the valve seat needs to be processed multiple times, the valve seat to be processed is moved into the interior of the processing machine box 40 through the opening on one side. A loading section is provided on one side of the two conveying boxes inside the processing machine box 40. There is no rotating frame 11 and other components on the upper side of the loading section, so that after the valve seat is horizontally conveyed in the processing machine box 40, the cutting operation of multiple positions of the valve seat is completed in sequence, and a sealing door is provided in the opening;

[0034] The transfer chamber 3 is also included. The installation base 1 is connected to the processing machine box 40 with a transfer chamber 3. A valve seat conveying mechanism with a lifting function is provided in the transfer chamber 3. The valve seat conveying mechanism includes a distance adjustment box 5 and a conveyor belt structure 6. The distance adjustment box 5 is longitudinally movable in the transfer chamber 3. Conveying boxes are slidably provided on both sides of the interior of the distance adjustment box 5. A transverse distance adjustment component is provided between the distance adjustment box 5 and the two conveying boxes. The transverse distance adjustment component includes a bidirectional screw 7 and a first drive motor 8. The bidirectional screw 7 is rotatably connected to the distance adjustment box 5. The bottom of the conveying box is threadedly connected to one side of the bidirectional screw 7 through a threaded plate. A first drive motor 8 is provided on the distance box 5, and the output end of the first drive motor 8 is fixedly connected to the bidirectional screw 7. A conveyor belt structure 6 is provided in the conveying box. The conveyor belt structure 6 is a prior art device well known to those skilled in the art. The valve seat is driven by the conveyor belt structure 6 for horizontal conveying. When the valve seat needs to be conveyed, the distance between the two conveying boxes is first adjusted according to the size of the processed valve seat, and the first drive motor 8 is started to drive the bidirectional screw 7 to rotate, so that the two conveying boxes move relative to each other in the distance adjustment box 5. The valve seat can contact the two conveyor belt structures 6 at the same time, and the conveyor belt structure 6 is used to convey the valve seat;

[0035] It also includes a lifting chute 9 and a first electric cylinder 10. A plurality of lifting chutes 9 are fixedly connected in the transfer chamber 3. A sliding rod is fixedly connected in the lifting chute 9. The distance-adjusting box 5 is slidably connected to the plurality of sliding rods. Two first electric cylinders 10 are provided in the transfer chamber 3. The output end of the first electric cylinder 10 is fixedly connected to the distance-adjusting box 5. When the rotating frame 11 is used to clamp and move the valve seat, the distance-adjusting box 5 needs to be lowered. The first electric cylinder 10 is started to drive the distance-adjusting box 5 to descend, so that the distance-adjusting box 5 drives the conveying box to descend.

[0036] Mounting trusses 4 are movably provided on both sides of the top of the transfer chamber 3, and further include a second bidirectional screw 31 and a fourth drive motor 32. The second bidirectional screw 31 is rotatably connected to the top of the transfer chamber 3, and the mounting truss 4 is slidably connected to the top of the transfer chamber 3. The mounting truss 4 is threadedly connected to one side of the second bidirectional screw 31. A fourth drive motor 32 is provided in the transfer chamber 3, and the output end of the fourth drive motor 32 is fixedly connected to the second bidirectional screw 31. When it is necessary to adjust the spacing between the two mounting trusses 4, the fourth drive motor 32 is started to drive the second bidirectional screw 31 to rotate, and the spacing between the two mounting trusses 4 is adjusted so that the two corresponding rotating frames 11 and corresponding components can clamp the valve seat, which is convenient for using the lathe processing end 2 to perform cutting operations on the valve seat;

[0037] A plurality of position adjustment mechanisms are correspondingly arranged between the two mounting trusses 4, and the position adjustment mechanisms correspond one to one with the lathe processing ends 2. The position adjustment mechanisms include a rotating frame 11, a rotating ring sleeve 15, an elastic clamping assembly and an engagement adjustment assembly. A rotating shaft 12 is rotatably connected in the rotating frame 11, and driving wheels 13 are arranged on both sides of the rotating shaft 12. A second driving motor 14 is arranged on the rotating frame 11, and the output end of the second driving motor 14 is fixedly connected to the rotating shaft 12. A rotating ring sleeve 15 is provided through the mounting truss 4, and an adjusting shaft 16 is rotatably provided in the rotating ring sleeve 15. The adjusting shaft 16 is fixedly connected to the rotating frame 11. By adjusting the distance between the corresponding two rotating frames 11, the driving wheel 13 is brought into contact with the valve seat, and the second driving motor 14 is started to drive the rotating shaft 12 and the driving wheel 13 to rotate, so that the driving wheel 13 drives the valve seat to rotate, and there is a large damping between the adjusting shaft 16 and the rotating ring sleeve 15. In the absence of external force, the rotating frame 11 will not rotate.

[0038] Elastic clamping assemblies are provided on both the upper and lower sides of the middle part of the rotating frame 11. The elastic clamping assemblies include a sliding member 17 and an arc-shaped clamping member 19. The sliding member 17 is fixedly connected to the rotating frame 11. Spring dampers 18 are provided on the upper and lower sides of the sliding member 17. The spring damper 18 is provided with an arc-shaped clamping member 19. In order to keep the valve seat fixed between the two rotating frames 11, when the rotating frame 11 moves toward the valve seat, the arc-shaped clamping member 19 contacts the valve seat. Under the action of the spring damper 18, the arc-shaped clamping member 19 clamps the valve seat.

[0039] An engagement adjustment assembly is provided between the mounting truss 4 and the two rotating frames 11, and the engagement adjustment assembly includes an engagement slot 20 and a third drive motor 22. Engaging slots 20 are provided on both sides of one rotating frame 11, and engagement plugs 21 are fixedly connected on both sides of the other rotating frame 11 corresponding to the rotating frame 11. A transmission worm gear 23 is provided on the adjusting shaft 16 on one side, and a transmission worm 24 is engaged with the transmission worm gear 23. The third drive motor 22 is provided on the mounting truss 4, and the transmission worm 24 is fixedly connected to the output end of the third drive motor 22. In order to make the rotating frame 11 flip along the direction of the adjusting shaft 16 and flip the valve seat in the other direction, the third drive motor 22 is started, and the engagement operation of the transmission worm gear 23 and the transmission worm gear 24 drives the adjusting shaft 16 to rotate, so that after the two rotating frames 11 are engaged together through the engagement slots 20 and the engagement plugs 21, the two rotating frames 11 rotate along the adjusting shaft 16 to adjust the position of the valve seat.

[0040] A plurality of position clamping mechanisms are provided in the processing machine box 40, and the position clamping mechanisms correspond to the position adjustment mechanisms one by one. The position clamping mechanisms include a sliding trough body 25 and a mounting cylinder body 29. A second electric cylinder 26 is provided in the processing machine box 40, and the output end of the second electric cylinder 26 is fixedly connected to the sliding trough body 25. The output end of the second electric cylinder 26 drives the sliding trough body 25 to move longitudinally. There are two mounting parts 27 slidingly connected in the sliding trough body 25. A double-headed electric cylinder 28 is provided in the sliding trough body 25, and the output end of the double-headed electric cylinder 28 is fixedly connected to the mounting part 27. A mounting cylinder body 29 is provided on the corresponding side of the two mounting parts 27. A positioning sensor 30 is provided in the mounting cylinder 29. In order to realize the rotation operation of the valve seat between the conveyor belt structure 6 and the rotating frame 11 Industry, after the rotating frame 11 clamps the valve seat, when the valve seat needs to be moved between the two conveyor belt structures 6, the second electric cylinder 26 is started to drive the sliding trough 25, the mounting part 27 and the mounting cylinder 29 to descend, so that the two positioning sensors 30 correspond to each other through the hollow valve seat, and then determine that the mounting cylinder 29 corresponds to the center point of the valve seat, and then start the double-headed electric cylinder 28 to drive the two mounting parts 27 to move relative to each other, so that the mounting cylinder 29 contacts the end face of the valve seat, and then clamps the valve seat. After the subsequent conveyor belt structure 6 rises, the clamping operation on the valve seat is released, so that the valve seat is moved to the two conveyor belt structures 6, so that the conveyor belt structure 6 can transport the valve seat. Using the above method, the valve seat can also be moved from the conveyor belt structure 6 to between the two rotating frames 11.

[0041] Furthermore, in order to collect and process the debris generated during the valve seat cutting process, a mounting frame 33 is provided in the transfer chamber 3, and a third electric cylinder 34 is provided on the transfer chamber 3. The output end of the third electric cylinder 34 is fixedly connected to the mounting frame 33, and a plurality of hoppers 35 are fixedly connected to the mounting frame 33. The number of hoppers 35 is the same as that of the lathe processing end 2. The bottom of the hopper 35 is connected to a discharge pipe 36, and the top of the hopper 35 is provided with an annular water injection cylinder 37. The inner circumference of the annular water injection cylinder 37 is connected to a plurality of water spray pipes 38. The annular water injection cylinder 37 is connected to the inner circumference of the water injection cylinder 37. There is a water inlet interface 39. When the valve seat is fixed between the two rotating frames 11 for cutting operation, the third electric cylinder 34 is started to drive the mounting frame 33 and multiple receiving hoppers 35 to move horizontally, so that the receiving hopper 35 moves to the bottom of the corresponding valve seat. Then, during the valve seat cutting process, the cut metal debris enters the receiving hopper 35, and then cleaning liquid is added to the annular water injection cylinder 37 through the water inlet interface 39. The cleaning liquid is sprayed out through the water spray pipe 38 to discharge the metal debris collected in the receiving hopper 35, and the cleaning liquid drives the metal debris to be discharged from the discharge pipe 36.

[0042] The working principle of the ball valve hard seal valve seat processing lathe:

[0043] First, adjust the height of the distance-adjusting box 5 in the transfer chamber 3, then move the valve seat between the two conveyor belt structures 6, and use the conveyor belt structure 6 to drive the valve seat to be transported in the direction of the two nearest rotating racks 11. After the valve seat is moved between the bottoms of the corresponding two rotating racks 11, start the second electric cylinder 26 to drive the sliding trough 25, the mounting piece 27 and the mounting cylinder 29 to descend, so that the two positioning sensors 30 correspond to each other through the hollow valve seat, and determine that the mounting cylinder 29 corresponds to the center point of the valve seat. Then start the double-headed electric cylinder 28 to drive the two mounting pieces 27 to move relative to each other, so that the mounting cylinder 29 contacts the end surface of the valve seat, and then clamps the valve seat. Then, the first electric cylinder 10 drives the distance-adjusting box 5 to descend, so that the conveyor belt structure 6 descends together, and then start the second electric cylinder 26 to make the height of the valve seat correspond to the position of the two rotating racks 11.

[0044] Start the fourth drive motor 32 to drive the bidirectional screw 2 31 to rotate, adjust the distance between the two mounting trusses 4, and when the rotating frame 11 moves toward the valve seat, the arc clamping member 19 contacts the valve seat. Under the action of the spring damper 18, the arc clamping member 19 clamps the valve seat. When it is necessary to perform cutting operations on multiple positions of the valve seat, start the second drive motor 14 to drive the rotating shaft 12 and the driving wheel 13 to rotate, so that the driving wheel 13 drives the valve seat to rotate. When it is necessary to drive the valve seat to adjust another angle, start the third drive motor 22, and drive the adjustment shaft 16 to rotate through the meshing operation of the transmission worm gear 23 and the transmission worm 24. After the two rotating frames 11 are meshed together through the meshing slot 20 and the meshing plug 21, the two rotating frames 11 rotate along the adjusting shaft 16 to adjust the position of the valve seat so that the valve seat can be fully cut.

[0045] Embodiment 2: This embodiment 2 is based on a ball valve hard seal valve seat processing lathe and also proposes a ball valve hard seal valve seat processing method, including the following steps:

[0046] Step 1: Conveying the valve seat: Start the first electric cylinder 10 to drive the distance adjustment box 5 to rise between the multiple lifting chutes 9. Start the first drive motor 8 to drive the bidirectional screw 7 to rotate according to the volume of the valve seat to be processed, adjust the positions of the two conveying boxes in the distance adjustment box 5, and then place the valve seat between the two conveyor belt structures 6 in the processing box 40. The conveyor belt structures 6 convey the valve seat and move the valve seat to the bottom of the two nearest rotating racks 11.

[0047] Step 2: Clamping the valve seat: Start the second electric cylinder 26 to drive the sliding trough 25, the mounting member 27, and the mounting cylinder 29 to descend, so that the two positioning sensors 30 pass through the hollow valve seat and correspond to each other. Then, it is determined that the center point of the mounting cylinder 29 corresponds to the valve seat. Then, start the double-headed electric cylinder 28 to drive the two mounting members 27 to move relative to each other, so that the mounting cylinder 29 contacts the end surface of the valve seat, and then the valve seat is clamped.

[0048] Step 3: Adjust the position of the valve seat: Start the second electric cylinder 26 to adjust the height of the valve seat to the position of the two rotating frames 11. Then start the first electric cylinder 10 to drive the distance adjustment box 5 to descend, and the conveyor belt structure 6 to descend together, reserving space for the movement of the rotating frame 11.

[0049] Step 4: Secondary clamping: Start the fourth drive motor 32 to rotate the second bidirectional screw 31, adjust the distance between the two mounting trusses 4, and when the rotating frame 11 moves toward the valve seat, the arc-shaped clamping member 19 contacts the valve seat. Under the action of the spring damper 18, the arc-shaped clamping member 19 clamps the valve seat.

[0050] Step 5: Adjusting the valve seat position: After the valve seat is clamped between the two rotating frames 11, the valve seat is processed using the lathe processing end 2, and then the second drive motor 14 is started to drive the rotating shaft 12 and the driving wheel 13 to rotate, so that the driving wheel 13 drives the valve seat to rotate. When it is necessary to drive the valve seat to adjust another angle, the third drive motor 22 is started, and the adjustment shaft 16 is driven to rotate through the meshing operation of the transmission worm gear 23 and the transmission worm 24. After the two rotating frames 11 are meshed together through the meshing slots 20 and the meshing plugs 21, the two rotating frames 11 rotate along the adjustment shaft 16 to adjust the position of the valve seat so that the valve seat can be fully cut.

[0051] Step 6: Valve seat processing: Through the above method, the valve seat is fully cut between the multiple lathe processing ends 2.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A ball valve hard seal valve seat processing lathe, comprising a mounting base (1), a processing box (40) is provided on the top of the mounting base (1), a plurality of lathe processing ends (2) are provided in the processing box (40), and openings are provided on both sides of the processing box (40), characterized in that: Also includes: A transfer chamber (3), wherein the installation base (1) and the processing machine box (40) are connected to each other via the transfer chamber (3), and a valve seat conveying mechanism with a lifting function is provided in the transfer chamber (3); Mounting trusses (4), the mounting trusses (4) are movably provided on both sides of the top of the transfer chamber (3), and a plurality of position adjustment mechanisms are correspondingly provided between the two mounting trusses (4), and the position adjustment mechanisms correspond to the lathe processing ends (2) one by one; Position clamping mechanisms, a plurality of the position clamping mechanisms are provided in the processing machine box (40), and the position clamping mechanisms correspond one to one to the position adjustment mechanisms; The position clamping mechanism comprises: A sliding trough (25), a second electric cylinder (26) is provided in the processing machine box (40), an output end of the second electric cylinder (26) is fixedly connected to the sliding trough (25), the output end of the second electric cylinder (26) drives the sliding trough (25) to move longitudinally, two mounting members (27) are slidably connected in the sliding trough (25), a double-headed electric cylinder (28) is provided in the sliding trough (25), and the output end of the double-headed electric cylinder (28) is fixedly connected to the mounting member (27); A mounting cylinder (29) is provided on one side corresponding to each of the two mounting members (27), and a positioning sensor (30) is provided in the mounting cylinder (29).

2. A ball valve hard seal seat processing lathe according to claim 1, characterized in that: The valve seat conveying mechanism includes: A distance-adjusting box (5) is longitudinally movable in the transfer chamber (3), a conveying box is slidably arranged on both sides of the interior of the distance-adjusting box (5), and a transverse distance-adjusting component is arranged between the distance-adjusting box (5) and the two conveying boxes; A conveyor belt structure (6), wherein the conveyor belt structure (6) is arranged in the conveying box.

3. A ball valve hard seal seat processing lathe according to claim 2, characterized in that: The lateral distance adjustment assembly includes: A bidirectional screw rod (7), wherein the bidirectional screw rod (7) is rotatably connected to the pitch adjustment box (5), and the bottom of the conveying box is threadedly connected to one side of the bidirectional screw rod (7) via a threaded plate; A first drive motor (8) is provided on the pitch adjustment box (5), and an output end of the first drive motor (8) is fixedly connected to the bidirectional screw rod (7).

4. A ball valve hard seal seat processing lathe according to claim 3, characterized in that: Also includes: A lifting chute (9), wherein a plurality of the lifting chute (9) are fixedly connected in the transfer chamber (3), a sliding rod is fixedly connected in the lifting chute (9), and the distance adjustment box (5) is slidably connected to the plurality of sliding rods; A first electric cylinder (10), two first electric cylinders (10) are provided in the transfer chamber (3), and the output end of the first electric cylinder (10) is fixedly connected to the distance adjustment box (5).

5. A ball valve hard seal seat processing lathe according to claim 4, characterized in that: The position adjustment mechanism comprises: A rotating frame (11), wherein a rotating shaft (12) is rotatably connected within the rotating frame (11), driving wheels (13) are provided on both sides of the rotating shaft (12), a second driving motor (14) is provided on the rotating frame (11), and an output end of the second driving motor (14) is fixedly connected to the rotating shaft (12); A rotating ring sleeve (15), the mounting truss (4) is provided with the rotating ring sleeve (15) running through it, an adjusting shaft (16) is rotatably provided in the rotating ring sleeve (15), and the adjusting shaft (16) is fixedly connected to the rotating frame (11); An elastic clamping assembly, wherein the elastic clamping assembly is provided on both upper and lower sides of the middle portion of the rotating frame (11); An engagement adjustment component is provided between the mounting truss (4) and the two rotating frames (11).

6. A ball valve hard seal seat processing lathe according to claim 5, characterized in that: The elastic clamping assembly comprises: A sliding member (17), the rotating frame (11) is fixedly connected to the sliding member (17), and spring dampers (18) are provided on both upper and lower sides of the sliding member (17); An arc-shaped clamping piece (19), wherein the spring damper (18) is provided with the arc-shaped clamping piece (19).

7. A ball valve hard seal seat processing lathe according to claim 6, characterized in that: The engagement adjustment assembly comprises: Engaging slots (20), wherein both sides of one of the rotating frames (11) are provided with engaging slots (20), and both sides of the other rotating frame (11) corresponding to the rotating frame (11) are fixedly connected with engaging plugs (21); A third drive motor (22), wherein a transmission worm wheel (23) is provided on the adjustment shaft (16) on one side, a transmission worm (24) is engaged with the transmission worm wheel (23), the third drive motor (22) is provided on the mounting truss (4), and the transmission worm (24) is fixedly connected to the output end of the third drive motor (22).

8. A ball valve hard seal seat processing lathe according to claim 7, characterized in that: Also includes: A second bidirectional screw rod (31), the second bidirectional screw rod (31) is rotatably connected to the top of the transfer chamber (3), the mounting truss (4) is slidably connected to the top of the transfer chamber (3), and the mounting truss (4) is threadedly connected to one side of the second bidirectional screw rod (31); A fourth drive motor (32) is provided in the transfer chamber (3), and an output end of the fourth drive motor (32) is fixedly connected to the second bidirectional screw (31).

9. A method for machining a ball valve hard seal seat, using the ball valve hard seal seat machining lathe according to claim 8, characterized in that: The following steps are involved: Step 1, conveying the valve seat: start the first electric cylinder (10) to drive the distance adjustment box (5) to rise between the plurality of lifting chutes (9), start the first drive motor (8) to drive the bidirectional screw (7) to rotate according to the volume of the valve seat to be processed, adjust the positions of the two conveying boxes in the distance adjustment box (5), and then place the valve seat between the two conveyor belt structures (6) in the processing machine box (40), so that the conveyor belt structure (6) conveys the valve seat and moves the valve seat to the bottom of the two nearest rotating racks (11); Step 2, clamping the valve seat: start the second electric cylinder (26) to drive the sliding trough (25), the mounting member (27) and the mounting cylinder (29) to descend, so that the two positioning sensors (30) correspond to each other through the hollow valve seat, and then determine that the mounting cylinder (29) corresponds to the center point of the valve seat, and then start the double-headed electric cylinder (28) to drive the two mounting members (27) to move relative to each other, so that the mounting cylinder (29) contacts the end surface of the valve seat, and then clamp the valve seat; Step 3: Adjust the position of the valve seat: start the second electric cylinder (26) so that the height of the valve seat corresponds to the position of the two rotating frames (11), and then start the first electric cylinder (10) to drive the distance adjustment box (5) to descend, so that the conveyor belt structure (6) descends together, and reserves space for the movement of the rotating frame (11); Step 4, secondary clamping: start the fourth drive motor (32) to drive the second bidirectional screw (31) to rotate, adjust the distance between the two mounting trusses (4), and when the rotating frame (11) moves toward the valve seat, make the arc-shaped clamping member (19) contact the valve seat, and under the action of the spring damper (18), make the arc-shaped clamping member (19) clamp the valve seat; Step 5, valve seat adjustment: after the valve seat is clamped between the two rotating frames (11), the valve seat is machined using the lathe processing end (2), and then the second drive motor (14) is started to drive the rotating shaft (12) and the driving wheel (13) to rotate, so that the driving wheel (13) drives the valve seat to rotate. When it is necessary to drive the valve seat to adjust another angle, the third drive motor (22) is started, and the adjusting shaft (16) is driven to rotate through the meshing operation of the transmission worm wheel (23) and the transmission worm (24), so that the two rotating frames (11) are meshed together through the meshing slot (20) and the meshing plug (21), and then the two rotating frames (11) are rotated along the adjusting shaft (16) to adjust the position of the valve seat so that the valve seat can be fully cut. Step 6: Valve seat processing: By using the above method, the valve seat is fully cut between the multiple lathe processing ends (2).

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