A turning device and method for valve production

Abstract

The application relates to the field of valve turning equipment, in particular to a turning device and method for valve production, which aims to solve the problem that the existing valve end face turning device can only operate one valve at a time, and the device needs to be stopped and another valve needs to be replaced after the turning of one valve is completed, which is not conducive to improving work efficiency. The device comprises a base, the outer side of the upper end of the base is rotatably provided with a first disc, a plurality of slide grooves with outer openings are uniformly embedded in the edge of the first disc, a valve clamping assembly is slidably arranged in the slide grooves; a workbench is arranged on the right side of the first disc, a driving mechanism for rotating the valve clamping assembly is slidably arranged on the workbench; a turning main machine is arranged on the right side of the workbench, a turning tool matched with the clamping assembly is arranged on the left side of the turning main machine; a push mechanism which can be extended and retracted leftward and rightward is fixedly arranged on the upper surface of the base; the first disc and a second disc are arranged in parallel, and a limiting mechanism is arranged between the first disc and the second disc. The device is simple to operate, convenient to use, and suitable for turning of various valves.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of valve turning equipment, in particular to a turning device and method for valve production. BACKGROUND

[0002] Valves are devices used in fluid systems to control the direction, pressure, and flow of fluids. They can control the flow or stop of media (liquids, gases, powders) in pipes and equipment and can control the flow rate. Valves can be used to control the flow of air, water, steam, various corrosive media, mud, oil products, liquid metals, and radioactive media. Valves need to be turned during production. Turning is a method of cutting workpieces on a lathe by rotating the workpiece relative to the tool. Turning is the most basic and common cutting method and plays a very important role in production. Turning is suitable for machining rotary surfaces, and most workpieces with rotary surfaces can be machined by turning, such as internal and external cylindrical surfaces, internal and external conical surfaces, end surfaces, grooves, threads, and rotary formed surfaces, etc. The main tool used is a turning tool.

[0003] When turning the outer end face of the valve, the valve is usually clamped and fixed by a clamp, and then fed forward to the turning tool for turning. Chinese Utility Model Patent No. 201921883420.3 discloses a valve hard sealing surface numerical control machining device, which mainly rotates a plurality of turning tools on the cutter head to process the two hard sealing end faces of the gate flap at the same time when the main machine on both sides is working. Not only is the machining precision high, but also the machining efficiency is greatly improved, solving the problem of low machining efficiency and large error caused by twice clamping and machining in the prior art. Chinese Utility Model Patent No. 202220551400.1 discloses a turret multi-station valve numerical control machining machine tool, which realizes turning, drilling, and chamfering of both sides of the hole in one clamping process through a single-face turning unit, a double-face turning unit, a three-face drilling unit, a front chamfering unit, and a back chamfering unit. Chinese Invention Patent No. 202110052182.7 discloses an intelligent fire hydrant valve end cover processing device and method, which solves the problem that the end face of the end cover cannot be polished and the outer edge of the end cover cannot be turned at the same time, and workers need to process step by step; and it is difficult to ensure that the valve end face is perpendicular to the axis of the hexagonal insert post, which often affects the subsequent disassembly of the valve end cover from the fire hydrant.

[0004] Currently, the existing valve end face turning device can only operate on one valve at a time, and after the turning of one valve is completed, the device needs to be stopped and another valve needs to be replaced, which wastes time and is not conducive to improving work efficiency.

[0005] Therefore, it is necessary to provide a device and method which can fix multiple valves and continuously turn the valve end face. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides a turning device for valve production, which aims to solve the problem that the existing valve end face turning device can only operate one valve at a time, and needs to stop and replace another valve after one valve is turned, which is time-consuming and not conducive to improving work efficiency.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a turning device for valve production, characterized in that it comprises a base, a first bearing is fixed on the outer side of the upper end of the base, a first disc is rotatably arranged on the outer side of the first bearing, a plurality of outer open slide grooves are uniformly embedded in the edge of the first disc, and a valve clamping assembly is slidably arranged in the slide grooves.

[0008] A workbench is arranged on the right side of the first disc, and a driving mechanism for rotating the valve clamping assembly is slidably arranged on the workbench.

[0009] A turning main machine is arranged on the right side of the workbench, and a turning tool cooperating with the clamping assembly is arranged on the left side of the turning main machine.

[0010] A push mechanism that can be extended leftward and rightward is fixed on the upper surface of the base, and the valve clamping assembly is arranged on the right side of the push mechanism.

[0011] A second disc is fixed on the base below the first disc, the first disc and the second disc are arranged in parallel, and a limiting mechanism that cooperates with each other and enables the first disc to rotate is arranged between the first disc and the second disc.

[0012] As a preferred technical scheme, the valve clamping assembly comprises a first sliding block, the first sliding block is in the shape of a cuboid, a circular blind hole is embedded in the upper surface of the first sliding block downward, a second bearing is embedded in the circular blind hole, the inner ring of the second bearing is fixedly connected with the outer side surface of the bottom of a clamp, and the clamp extends upward out of the second bearing.

[0013] A vertical circular through hole is arranged below the circular blind hole, a U-shaped clamping block with an opening facing right and vertically penetrating is arranged in the circular through hole, the upper surface of the U-shaped clamping block is fixedly connected with the bottom surface of a circular plate, the upper surface of the circular plate is fixedly connected with the bottom surface of the inner ring of the second bearing, and a rectangular gap cooperating with the U-shaped clamping block is embedded in the right side of the first sliding block.

[0014] Two tension springs are fixedly arranged between the inner side surface of the first sliding block and the inner side surface of the slide groove, and the tension springs are arranged close to the two sides.

[0015] Vertical first limiting columns are arranged at the four corners of the bottom surface of the first sliding block, and right-opened first slide grooves slidably cooperating with the first limiting columns are embedded in the bottom surface of the slide groove.

[0016] The first slider left side is also embedded with a jack that cooperates with the pushing mechanism.

[0017] As a preferred technical solution, the driving mechanism comprises a driving block that is slidingly fitted with the inner surface of the U-shaped clamping block, the driving block is fixed on the motor shaft of the vertical driving motor, the bottom of the driving motor is fixed on the upper surface of the second slider, the bottom of the second slider is fixed with vertical second limiting columns on the front and back sides, the second slide is embedded in the center of the workbench in the left-right direction, the second slide is in dovetail groove structure, and the second limiting column is in inverted T-shaped structure matched with the dovetail groove;

[0018] The workbench on the front and back sides of the second slide is also embedded with a third slide that is in communication with the first slide;

[0019] The workbench on the right end of the second slide is fixed with a limiting block, the workbench on the right side of the limiting block is fixed with a vertical plate, and the first spring is fixed between the vertical plate and the second slider;

[0020] The first spring is transversely provided with a sliding rod, the sliding rod is slidingly penetrated through the vertical plate, the left end surface of the sliding rod is fixed with a switch matched with the driving motor, the second spring is sleeved on the sliding rod between the switch and the vertical plate, and the end of the sliding rod on the right side of the vertical plate is provided with a limiting protrusion;

[0021] The side surface of the driving block and the upper surface of the driving motor are provided with a correction assembly matched with each other.

[0022] As a preferred technical solution, the pushing mechanism comprises an electric hydraulic cylinder fixed on the upper surface of the base, and the oil cylinder rod thereof extends to the right and cooperates with the valve clamping assembly.

[0023] As a preferred technical solution, the driving block and the U-shaped clamping block are in the same horizontal plane.

[0024] As a preferred technical solution, the height of the bottom surface of the turning tool is higher than the height of the upper surface of the valve clamping assembly.

[0025] As a preferred technical solution, the correction assembly comprises a first magnetic block fixed on the four bottom surfaces of the driving block, and a second magnetic block is fixed on the driving motor below the first magnetic block and is attracted to the first magnetic block.

[0026] As a preferred technical solution, the limiting mechanism comprises a blind hole annularly embedded in the bottom surface of the first disc, the blind hole is vertically arranged in a cylindrical shape, a third spring is arranged vertically in the blind hole, the top of the third spring is fixedly connected with the top of the blind hole, the lower end is fixedly connected with the upper surface of the ball, and the part of the ball exposed from the blind hole is smaller than the radius of the ball;

[0027] The upper surface of the second disc is embedded with an arc-shaped groove matched with the ball.

[0028] As a preferred technical solution, the limiting mechanism comprises a ring-shaped blind hole embedded in the bottom surface of the first disc, the blind hole is vertically arranged and has a cuboid shape, and a vertical third spring is arranged in the blind hole, the top of the third spring is fixedly connected with the top of the blind hole, and the lower end is fixedly connected with the upper surface of the plug.

[0029] The upper surface of the second disc is circumferentially embedded with a wedge-shaped groove matched with the sharp head.

[0030] As a preferred technical solution, the application provides a turning method for valve production, which is characterized by comprising the following steps: S1. fixing a plurality of to-be-turned valves in a valve clamping assembly, with the upper end of the valve protruding out of the valve clamping assembly; S2. starting the turning main machine, with the turning tool in a rotating state; S3. controlling the electric hydraulic cylinder to extend the oil cylinder rod, pushing the valve clamping assembly to move outward and be clamped into the driving mechanism, and continuing to push forward to squeeze the switch, then the driving motor drives the valve to rotate, and continuing to push forward makes the valve contact the turning tool, and the turning is completed when the valve reaches the limiting block; S4. controlling the electric hydraulic cylinder to retract the oil cylinder rod to the initial position, and the valve clamping assembly and the driving mechanism are reset under the action of the tension spring and the first spring respectively; S5. manually rotating the first disc counterclockwise, and the first disc enters the next clamping position under the action of the limiting mechanism, and the oil cylinder rod of the electric hydraulic cylinder is aligned with the next valve, so that the turning of multiple valves is continuously completed in sequence.

[0031] Compared with the prior art, the application provides a turning device and method for valve production, which has the following beneficial effects:

[0032] 1. The first disc is circumferentially embedded with a plurality of outer open slide grooves on the edge, and the valve clamping assembly is slidably arranged in the slide groove, so that the valve clamping assembly can clamp and fix a plurality of valves, and the valve clamping assembly can slide in and out to push the turning mechanism outward.

[0033] 2. The workbench is arranged on the right side of the first disc, the driving mechanism for rotating the clamping assembly is slidably arranged on the workbench, the turning main machine is arranged on the right side of the workbench, the turning tool matched with the clamping assembly is arranged on the left side of the turning main machine, the push mechanism which can extend leftward and rightward is fixedly arranged on the upper surface of the base, and the push mechanism is arranged towards the right slide groove, so that the turning main machine is started first to rotate the turning tool, and then the push mechanism is started to push the valve outward and make the valve clamping assembly and the driving mechanism clamped and matched, and the driving motor is started to rotate the valve, and the turning action is completed by continuing to push, and the valve clamping assembly and the driving mechanism can be reset after the oil cylinder rod is retracted, so as to turn the next valve.

[0034] 3. The first disc is fixed below the base, the second disc is parallel to the first disc, and a limiting mechanism is arranged between the two discs to enable the rotation of the first disc, the first disc can be rotated to replace the next valve, and the limiting mechanism can limit the rotation to enable the outward pushing of the pushing mechanism for turning.

[0035] 4. The first spring is provided with a sliding rod, the sliding rod is slidably arranged through the vertical plate, a switch is arranged on the left side of the sliding rod to cooperate with the driving motor, the second spring is arranged on the sliding rod between the switch and the vertical plate, and a limiting protrusion is arranged on the end of the sliding rod on the right side of the vertical plate, so that the pushing mechanism can push to the right to press the switch to turn on the driving motor, so that the valve can be rotated for turning by the rear turning tool.

[0036] 5. The driving block is provided with a correcting assembly on the upper surface of the driving motor, the correcting assembly comprises a first magnetic block fixed to the four bottom surfaces of the driving block, and a second magnetic block is fixed below the first magnetic block to attract the first magnetic block, so that when the driving mechanism is reset, the driving block can be attracted by the upper and lower magnetic blocks to correct the positioning, which facilitates the smooth clamping of the driving block into the U-shaped clamping block.

[0037] 6. The first sliding block is further provided with a hole on the left side to cooperate with the pushing mechanism, the hole is a blind hole, and the oil cylinder rod of the electric hydraulic cylinder can be inserted into the hole, so that the first sliding block is limited in the upward and downward directions when the first sliding block is pushed, which avoids the upward and downward movement of the first sliding block and facilitates the stability of the turning action. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a schematic diagram of the three-dimensional structure of the application;

[0039] Figure 2 is a schematic diagram of the three-dimensional structure of the valve clamping assembly, the driving mechanism and the workbench;

[0040] Figure 3 is Figure 2 is a schematic diagram of the three-dimensional structure from another angle;

[0041] Figure 4 is Figure 3 is an enlarged structure diagram of the valve clamping assembly;

[0042] Figure 5 is Figure 4 is a schematic diagram of the split structure of the valve clamping assembly;

[0043] Figure 6 is Figure 3 is an enlarged structure diagram of the driving mechanism;

[0044] Figure 7 isFigure 6 Amplification structure schematic diagram of middle driving motor;

[0045] Figure 8 Amplification structure schematic diagram of cooperation of vertical plate and slide rod;

[0046] Figure 9 Schematic diagram of three-dimensional structure of limiting mechanism of the application;

[0047] Figure 10 Schematic diagram of three-dimensional structure of limiting mechanism of the application; Figure 9 Amplification structure schematic diagram of first disc local limiting mechanism;

[0048] Figure 11 Schematic diagram of structure of the second embodiment of the application;

[0049] Figure 12 Schematic diagram of three-dimensional structure of limiting mechanism of the application; Figure 11 Amplification structure schematic diagram of first disc local limiting mechanism.

[0050] Indicated in the figure:

[0051] 1. base; 11. electric hydraulic cylinder; 111. oil cylinder rod; 12. first slide; 13. distribution box;

[0052] 2. first bearing;

[0053] 3. first disc; 30. slide groove; 31. ball; 32. third spring; 34. blind hole; 35. plug; 351. sharp head;

[0054] 4. second disc; 41. arc-shaped groove; 42. wedge-shaped groove;

[0055] 5. valve clamping assembly; 51. clamp; 52. second bearing; 53. first sliding block; 531. insertion hole; 532. circular blind hole; 533. circular through hole; 54. first limiting column; 55. tension spring; 56. rectangular gap; 57. round plate; 58. U-shaped clamping block;

[0056] 6. driving mechanism; 60. second slide; 61. first spring; 62. second sliding block; 63. driving motor; 64. driving clamping block; 65. first magnetic block; 66. second magnetic block;

[0057] 7. workbench; 71. supporting leg; 72. third slide; 73. limiting block;

[0058] 8. vertical plate; 81. slide rod; 811. switch; 812. second spring; 813. limiting protrusion;

[0059] 9. turning main machine; 91. turning tool. DETAILED DESCRIPTION

[0060] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0061] Example 1

[0062] like Figures 1 to 10 As shown, a turning device for valve production includes a base 1, which is cylindrical in shape with a protrusion machined at the upper end. A first bearing 2 is fixedly mounted on the protrusion, and a first disc 3 (annular) is fixedly mounted around the outer ring of the first bearing 2. Several open slide grooves 30 are uniformly embedded inward along the circumference of the first disc 3, and a valve clamping assembly 5 is slidably mounted in the slide grooves 30. A worktable 7 is located on the right side of the first disc 3, and a drive mechanism 6 that allows the valve clamping assembly 5 to rotate is slidably mounted on the worktable 7. A turning host 9 (existing technology, connected to an electrical distribution box 13 fixed to the front side of the base 1 via wiring) is located on the right side of the worktable 7, and a turning tool 91 that cooperates with the clamping assembly 5 is located on the left side of the turning host 9 (its installation method is known to those skilled in the art). A left-right retractable pushing mechanism is fixedly mounted on the upper surface of the base 1, and the pushing mechanism is positioned towards the valve clamping assembly 5 on the right side. A second disc 4 (ring-shaped) is fixedly mounted on the base 1 below the first disc 3. The first disc 3 and the second disc 4 are arranged in parallel and are provided with a limiting mechanism that cooperates with each other and enables the first disc 3 to rotate.

[0063] The valve clamping assembly 5 comprises a first slider 53 in the shape of a cuboid, with a circular blind hole 532 embedded in the upper surface, a second bearing 52 embedded in the circular blind hole 532, the inner ring of the second bearing 52 fixedly connected to the outer side of the bottom of a clamp 51 (prior art, a threaded outer sleeve can clamp a valve), and the clamp 51 extending upward out of the second bearing 52. A vertical circular through hole 533 is provided below the circular blind hole 532, a U-shaped clamping block 58 with an opening facing right and vertically penetrating is provided in the circular through hole 533, the upper surface of the U-shaped clamping block 58 fixedly connected to the bottom surface of a circular plate 57, the upper surface of the circular plate 57 fixedly connected to the bottom surface of the inner ring of the second bearing 52, and a rectangular gap 56 cooperating with the U-shaped clamping block 58 embedded in the right side of the first slider 53. Two tension springs 55 are fixedly arranged between the inner side of the first slider 53 and the inner side of the slide groove 30, with the tension springs 55 arranged close to the two sides. Vertical first limiting columns 54 (in the shape of a rectangle in cross section) are respectively arranged at the four corners of the bottom surface of the first slider 53, and a right-opened first slide 12 slidingly cooperating with the first limiting columns 54 is embedded in the bottom surface of the slide groove 30. An insertion hole 531 cooperating with the push mechanism is further embedded in the left side surface of the first slider 53. The oil cylinder rod 111 of the electric hydraulic cylinder 11 can be inserted to play a role of pushing and limiting the first slider 53, avoiding left and right shaking, and being beneficial to the stability of the driving mechanism 6.

[0064] The driving mechanism 6 includes a driving block 64 which is in sliding fit with the inner surface of the U-shaped block 58, the driving block 64 is fixed on the motor shaft of the vertical driving motor 63 (connected with the distribution box 13 through a line, and the connection mode is known to those skilled in the art), the bottom of the driving motor 63 is fixed on the upper surface of the second sliding block 62, the bottom of the second sliding block 62 is fixed with vertical second limiting columns (not shown in the figure) on the front and back sides, the workbench 7 is embedded with a left-right direction second sliding groove 60 at the center position, the second sliding groove 60 is in dovetail groove structure, and the second limiting column is in inverted T-shaped structure matched with the dovetail groove (to prevent the driving motor 63 from shaking left and right, and to facilitate the stability of work). The workbench 7 on the front and back sides of the second sliding groove 60 is further embedded with a third sliding groove 72 which is in communication with the first sliding groove 12. The workbench 7 on the right end of the third sliding groove 72 is fixed with a limiting block 73, the workbench 7 on the right side of the limiting block 73 is fixed with a vertical plate 8, and the first spring 61 is fixed between the vertical plate 8 and the second sliding block 62. The first spring 61 is transversely provided with a sliding rod 81, the sliding rod 81 is transversely and slidably penetrated through the vertical plate 8, the left end surface of the sliding rod 81 is fixed with a switch 811 matched with the driving motor 63 (connected with the driving motor 63 through a line, and the connection mode is known to those skilled in the art), the second spring 812 is sleeved on the sliding rod 81 between the switch 811 and the vertical plate 8, and the end of the sliding rod 81 on the right side of the vertical plate 8 is provided with a limiting protrusion 813. The side surface of the driving block 64 and the upper surface of the driving motor 63 are provided with mutually matched correction assemblies. The correction assembly includes a first magnetic block 65 fixed on the bottom of the four sides of the driving block 64, and a second magnetic block 66 fixed on the driving motor 63 below the first magnetic block 65 and mutually attracted with the first magnetic block 65. It is beneficial to the fit of the driving block 64 and the U-shaped block 58.

[0065] The pushing mechanism includes an electric hydraulic cylinder 11 fixed on the upper surface of the base 1 (connected with the distribution box 13 through a line penetrating the base 1), and the oil cylinder rod 111 of the electric hydraulic cylinder 11 extends to the right and is matched with the valve clamping assembly 5 for pushing. The driving block 64 and the U-shaped block 58 are in the same horizontal plane, so as to be smoothly clamped. The height of the bottom surface of the turning tool 91 is higher than the height of the upper surface of the valve clamping assembly 5, so as to turn the upper surface of the valve.

[0066] The limiting mechanism includes a blind hole 34 which is annularly embedded on the bottom surface of the first disc 3, the blind hole 34 is vertically arranged and in cylindrical shape, and a vertical third spring 32 is arranged in the blind hole 34, the top of the third spring 32 is fixedly connected with the top of the blind hole 34, and the lower end is fixedly connected with the upper surface of the ball 31, the part of the ball 31 exposed from the blind hole 34 is smaller than the radius of the ball 31, so that the first disc 3 can rotate. The upper surface of the second disc 4 is embedded with an arc-shaped groove 41 which is in fit with the ball 31.

[0067] In use, the ball 31 cooperates with the arc-shaped groove 41 to limit the first disc 3, facilitating the right pushing of the valve clamping assembly 5 by the pushing mechanism. The working process is as follows: first, start the turning main machine 9 to rotate the turning tool 91, then start the pushing mechanism, and then the valve can be pushed outward and clamped with the driving mechanism 6, and the switch 811 can be squeezed to start the driving motor 63, so that the valve rotates, and the turning action is completed by continuing to push, and the turning is completed at the limit block 73, and the valve clamping assembly 5 and the driving mechanism 6 can be reset under the action of the tension spring 55 and the first spring 61, and the switch is reset under the action of the second spring 812. Manually rotating the first disc 3 counterclockwise can turn the next valve, realizing the fixing and continuous turning of multiple valves and improving the work efficiency.

[0068] Embodiment 2

[0069] As shown in Figure 11 , Figure 12 , the limiting mechanism comprises a blind hole 34 annularly embedded in the bottom surface of the first disc 3, the blind hole is vertically arranged and has a cuboid shape, and a vertical third spring 32 is arranged in the blind hole 34, the top of the third spring 32 is fixedly connected with the top of the blind hole 34, and the lower end is fixedly connected with the upper surface of the plug 35, the plug 35 has a cuboid shape, and the exposed part of the bottom has a right side corner-shaped inclined surface. The second disc 4 has a wedge-shaped groove 42 annularly embedded in the upper surface and matched with the sharp head.

[0070] In use, the sharp head of the plug 35 is clamped and matched with the wedge-shaped groove 42 to limit the first disc 3, and the right side corner-shaped inclined surface facilitates the plug 35 to be separated from the wedge-shaped groove and facilitates the counterclockwise rotation of the first disc 3.

[0071] The application also provides a turning method for valve production, comprising the following steps: S1. fixing a plurality of valves to be turned in the valve clamping assembly 5, and the upper end of the valve protrudes from the valve clamping assembly 5; S2. starting the turning main machine 9, and the turning tool 91 is in a rotating state; S3. controlling the electric hydraulic cylinder 11 to extend the oil cylinder rod 111 to push the valve clamping assembly 5 to move outward and be clamped into the driving mechanism 6, and continuing to push the switch 811 to drive the valve to rotate by the driving motor 63, and continuing to push to make the valve contact the turning tool 91, and the turning is completed at the limit block 73; S4. controlling the electric hydraulic cylinder 11 to retract the oil cylinder rod 111 to the initial position, and the valve clamping assembly 5 and the driving mechanism 6 are reset under the action of the tension spring 55 and the first spring 61, respectively; S5. manually rotating the first disc 3 counterclockwise, and the first disc 3 enters the next clamping position under the action of the limiting mechanism, and the oil cylinder rod 111 of the electric hydraulic cylinder 11 is aligned with the next valve, so that the turning of multiple valves is continuously completed in sequence.

[0072] The components used in the present application are all general standard components or components known to those skilled in the art, and their structures and principles are well known to those skilled in the art.

[0073] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0074] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A turning apparatus for valve production, characterized in that: The base includes a base, on the outer side of the upper end of the base a first bearing is fixedly sleeved, a first disc is rotatably provided on the outer side of the first bearing, and a number of open slide grooves are uniformly embedded in the circumferential edge of the first disc, and a valve clamping assembly is slidably provided in the slide grooves. A worktable is provided on the right side of the first disc, and a drive mechanism that can rotate the valve clamping assembly is slidably provided on the worktable. The right side of the worktable is equipped with a turning host, and the left side of the turning host is equipped with a turning tool that cooperates with the clamping assembly. The upper surface of the base is fixed with a push mechanism that can extend and retract left and right, and the push mechanism is set towards the valve clamping assembly on the right side; A second disk is fixedly mounted on the base below the first disk. The first disk and the second disk are arranged in parallel and a limiting mechanism that cooperates with each other and enables the first disk to rotate is provided between them. The valve clamping assembly includes a first slider, which is rectangular in shape and has a circular blind hole embedded on its upper surface facing downward. A second bearing is embedded in the circular blind hole, and the inner ring of the second bearing is fixedly connected to the outer side of the bottom of the clamp. The clamp extends upward from the second bearing. Below the circular blind hole is a vertical circular through hole, and inside the circular through hole is a U-shaped locking block with its opening facing right and vertically penetrating. The upper surface of the U-shaped locking block is fixedly connected to the bottom surface of the circular plate, and the upper surface of the circular plate is fixedly connected to the bottom surface of the inner ring of the second bearing. The right side of the first slider is fitted with a rectangular notch that cooperates with the U-shaped locking block. Two tension springs are fixedly provided between the inner side of the first slider and the inner side of the slide groove, with the tension springs positioned close to both sides; The first slider has vertical first limiting posts at the four corners of its bottom surface, and the bottom surface of the slide groove is embedded with a first slide groove with a right opening that slides in cooperation with the first limiting posts. The left side of the first slider is also fitted with a socket that mates with the pushing mechanism; The driving mechanism includes a driving block that slides and engages with the inner surface of the U-shaped block. The driving block is fixed on the motor shaft of the vertical driving motor. The bottom of the driving motor is fixed to the upper surface of the second slider. Vertical second limiting posts are fixed on the front and rear sides of the bottom of the second slider. A second slide rail in the left and right direction is embedded in the center of the worktable. The second slide rail has a dovetail groove structure. The second limiting post has an inverted T-shaped structure that engages with the dovetail groove. The worktables on both sides of the second slide are also fitted with a third slide that connects to the first slide; A limiting block is fixedly provided on the worktable at the right end of the second slide, and a vertical plate is fixedly provided on the worktable to the right of the limiting block. A first spring is fixedly provided between the vertical plate and the second slide. The first spring has a sliding rod arranged laterally, which can slide through the vertical plate. A switch that cooperates with the drive motor is fixed on the left end face of the sliding rod. A second spring is sleeved on the sliding rod between the switch and the vertical plate. A limiting protrusion is provided at the end of the sliding rod on the right side of the vertical plate. The drive block has a corresponding correction component on its side and the upper surface of the drive motor.

2. The turning apparatus for valve production according to claim 1, characterized in that: The pushing mechanism includes an electric hydraulic cylinder fixed to the upper surface of the base, with its cylinder rod extending to the right to engage with the valve clamping assembly in a pushing action.

3. A turning apparatus for valve production according to claim 1, characterized in that: The drive block and the U-shaped block are on the same horizontal plane.

4. A turning apparatus for valve production according to claim 1, characterized in that: The height of the bottom surface of the cutting tool is higher than the height of the upper surface of the valve clamping assembly.

5. A turning apparatus for valve production according to claim 1, characterized in that: The correction component includes a first magnetic block fixed to the bottom of the four sides of the drive block, and a second magnetic block that attracts the first magnetic block is fixed on the drive motor below the first magnetic block.

6. A turning apparatus for valve production according to claim 1, characterized in that: The limiting mechanism includes a blind hole that is annularly embedded in the bottom surface of the first disc. The blind hole is vertically arranged and cylindrical. A third spring is provided in the blind hole. The top of the third spring is fixedly connected to the top of the blind hole, and the lower end is fixedly connected to the upper surface of the ball. The part of the ball that protrudes from the blind hole is smaller than the radius of the ball. The upper surface of the second disk is circumferentially embedded with an arc-shaped groove that engages with the ball bearing.

7. A turning apparatus for valve production according to claim 1, characterized in that: The limiting mechanism includes a blind hole that is annularly embedded in the bottom surface of the first disc. The blind hole is vertically arranged and is rectangular in shape. A vertical third spring is provided inside the blind hole. The top of the third spring is fixedly connected to the top of the blind hole, and the lower end is fixedly connected to the upper surface of the insert block. The insert block is rectangular in shape, and the exposed part at the bottom is a pointed shape with a missing right corner. The upper surface of the second disk is circumferentially embedded with a wedge-shaped groove that mates with the pointed end.

8. A turning method for a valve manufacturing turning apparatus according to any one of claims 1-7, characterized in that: Includes the following steps: S1. Fix several valves to be machined in the valve clamping assembly, with the upper end of the valve protruding from the valve clamping assembly; S2. Start the turning machine, and the cutting tool is in a rotating state; S3. Control the electric hydraulic cylinder to extend the cylinder rod, push the valve clamping assembly to move outward and engage with the drive mechanism, and continue to push forward to squeeze the switch, which will drive the motor to drive the valve to rotate. Continue to push forward until the valve contacts the cutting tool, and the turning is completed when it reaches the limit block; S4. Control the electric hydraulic cylinder to retract the cylinder rod to the initial position, and the valve clamping assembly and drive mechanism are reset under the action of the tension spring and the first spring, respectively; S5. Manually rotate the first disc counterclockwise, and under the action of the limit mechanism, the first disc enters the next clamping position, and the cylinder rod of the electric hydraulic cylinder aligns with the next valve. In this way, the turning of multiple valves is completed in sequence.

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