Positioning tool for valve production

Abstract

The invention discloses a positioning tool for valve production, and relates to the technical field of valves, the positioning tool for valve production is characterized in that an opening supporting assembly is arranged on an adjusting assembly, the positioning tool is suitable for valves with different calibers, a lifting assembly is installed at the bottom of a rack, and a valve body can be conveniently lifted and positioned; according to the right-angle and oblique-angle valve, the adjusting assembly and the opening supporting assembly are adjusted at different angles according to different included angles formed by the two ports of the valve body, and therefore the right-angle and oblique-angle valve is suitable for positioning and fixing when the two ports of the valve body are not located on the same axis, the oblique-angle valve is formed, the two ports are not parallel to each other and incline to each other, and the two ports are formed at different angles. And compared with a positioning tool in the prior art, the adaptability is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, in particular to a positioning tool used for valve production. Background Art

[0002] Positioning fixtures used in valve production are usually used to accurately position and fix the various components of the valve during the production process to ensure assembly quality and process accuracy.

[0003] The existing positioning tooling for valve production has the following problems during the process of positioning and fixing the valve: Problem 1: The existing positioning tooling for valve production is not adaptable enough to the valve port angle. The existing positioning tooling is mainly designed for straight-through straight-angle and coaxial valves, and cannot be flexibly adapted to valves with non-coaxial port angles such as right angles and bevels. For example, when the ports at both ends of the valve body are tilted to form different angles, the positioning accuracy is insufficient or it cannot be fixed.

[0004] Problem 2: There is a conflict between the existing tooling positioning and the valve processing process. The existing tooling usually fixes the valve body by clamping the outer wall. The clamping part will block the surface of the valve body, resulting in subsequent processing, such as grinding and welding, unable to cover the clamped area. The tooling needs to be disassembled and assembled multiple times, affecting production efficiency and processing accuracy.

[0005] In response to the above problems, the inventors proposed a positioning tool for valve production to solve the above problems. Summary of the Invention

[0006] In order to solve the problem of positioning port valves at different angles, the purpose of the present invention is to provide a positioning tool for valve production.

[0007] To solve the above technical problems, the present invention adopts the following technical solution: a positioning tool for valve production, comprising a frame and a valve body, a guide frame mounted on one side of the frame, the guide frame being arranged in an arc shape, a gear and a sliding frame being respectively provided at both ends of the guide frame, one end of the sliding frame being rotatably connected to a rotating shaft of the gear; A pushing assembly is installed on the outer side of the guide frame for driving the gear and the sliding frame; The sliding frame is slidably connected to a moving block, and the sliding frame is rotatably connected to a screw rod, and the screw rod passes through the moving block and is threadedly connected; An adjustment component is rotatably connected to the outer wall of the moving block, suitable for valves with different bevel angles; The regulating assembly is provided with a support assembly suitable for valves of different calibers; A lifting assembly is installed at the bottom of the frame to facilitate lifting and positioning the valve body; A processing assembly for processing the outer wall of the valve body is installed on the top of the frame.

[0008] Preferably, the guide frame includes an arc-shaped rack, an arc-shaped frame and a guide groove, the arc-shaped rack is connected to the arc-shaped frame and the guide groove, and the arc-shaped rack is located between the guide groove and the arc-shaped frame; The gear is meshed with the outer wall of the arc-shaped rack, the sliding frame is slidably connected to the arc-shaped frame, and the guide groove guides the rotating shaft of the gear.

[0009] Preferably, the pushing assembly includes a second cylinder, the outer wall of the second cylinder is connected to the frame, the output shaft of the second cylinder is connected to a movable slot plate, and the rotating shaft of the gear extends to the inner side of the movable slot plate and is slidably connected.

[0010] Preferably, the adjustment assembly includes a gear ring, the outer wall of the gear ring is rotatably connected to the outer wall of the moving block, a moving groove is provided on the inner wall of the gear ring, a carrier plate is provided in the middle of the gear ring, both ends of the carrier plate are rotatably connected to connecting blocks, and a wheel is rotatably connected to the connecting block.

[0011] Preferably, a micro motor is installed on the outer wall of the connecting block, the output shaft of the micro motor is connected to the rotating shaft of the wheel, the output shaft of the micro motor is connected to a driving gear, a plurality of teeth are provided on the inner wall of the gear ring, and the driving gear and the teeth are engaged with each other.

[0012] Preferably, the opening support assembly includes a small cylinder, which is mounted on the outer wall of the carrier plate. A connecting rod is connected to the outer wall of the carrier plate, and one end of the connecting rod is fixedly connected to a circular plate.

[0013] Preferably, an inclined plate is fixedly connected to the outer wall of the output shaft of the small cylinder, a slide groove is provided on the circular plate, a sliding rod is slidably connected to the inner wall of the slide groove, a spring is provided between the sliding rod and the inner wall of the circular plate, the sliding rod passes through the circular plate and is slidably connected, one end of the circular plate is connected to a clamping plate, and a roller is rotatably connected to the outer wall of the clamping plate.

[0014] Preferably, an inclined surface is provided on the outer wall of the bottom of the sliding rod, and the surface of the inclined plate fits with the inclined surface of the sliding rod.

[0015] Preferably, the lifting assembly includes a support frame, the support frame is installed at the bottom of the frame, two sliders are slidably connected to the inner wall of the support frame, a bidirectional screw is rotatably connected to the support frame, and the bidirectional screw passes through the two sliders and is threadedly connected; The top of the sliding block is rotatably connected to a rotating rod, and the top of the rotating rod is rotatably connected to a supporting plate.

[0016] Preferably, the processing assembly includes a trough frame, which is installed on the top of the frame, a sliding block is slidably connected to the inner wall of the trough frame, a first motor is installed on the outer wall of the trough frame, a screw rod is connected to the output shaft of the first motor, the screw rod passes through the sliding block and is threadedly connected, a first cylinder is installed on the outer wall of the sliding block, the output end of the first cylinder is connected to the machine base, a second motor is installed on the machine base, and a grinding head is installed on the output shaft of the second motor.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention has straight-through straight-angle, right-angle and oblique-angle valves through the setting of the adjustment component. According to the different angles formed by the two ports of the valve body, the adjustment component and the support component are adjusted at different angles. Therefore, it is suitable for positioning and fixing when the two ports of the valve body are not on the same axis, when it is an oblique-angle valve, when the two ports are not parallel to each other, when they are inclined to each other, and when they are at different angles. Compared with the positioning tooling in the prior art, the adaptability is stronger.

[0018] 2. The present invention provides a support assembly based on the effect one and the effect two used in conjunction. When positioning and fixing the valve body port, the output end of the small cylinder drives the inclined plate to move. The inclined plate passes through the slide groove to push and adjust the sliding rod. The spring is used to reset the sliding rod, so that the support assembly is suitable for clamping ports of different calibers. The clamping plate is used to clamp the outer side of the port of the valve body to prevent the valve body from deviating and play a positioning and fixing role. The roller is used to fit the inner wall of the port of the valve body to reduce the clamping damage to the inner wall of the valve body. Compared with the prior art, after the valve is positioned, the positioning tool of the present invention does not contact the outer wall of the valve body, avoiding the problem that the clamping surface cannot be processed due to the clamping of the valve body by the tool; 3. The present invention sets a movable slot plate. Before fixing the valve body, it is necessary to determine that the length of the valve body needs to be less than the maximum positioning distance between the two adjusting components. According to the required valve body length, the output end of the second cylinder is extended and retracted to drive the movable slot plate to move. The two ends of the movable slot plate pull the rotating shaft of the gear downward, and the rotating shaft of the gear moves along the guide groove. During the movement, it moves on the inner wall of the movable slot plate, so that the two gears are close to each other along the arc-shaped rack, and at the same time drive the sliding frame, the adjusting component and the support assembly to approach each other, so as to adapt to the positioning and fixation of valves of different lengths, and further improve the adaptability of the positioning tooling.

[0019] 4. Through the setting of the screw rod in the present invention, after the valve body is processed, the ports at both ends of the valve body are not completely symmetrical with respect to the center of the valve body. By rotating the screw rod to drive the moving block to move, the distance between the support assembly and the valve body port can be further adjusted, and fine-tuning can be performed to better adjust and fix it. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 Schematic diagram of the guide frame structure of the present invention.

[0023] Figure 3 Schematic diagram of the gear ring of the present invention.

[0024] Figure 4 Schematic diagram of the adjustment component of the present invention.

[0025] Figure 5 This is a schematic diagram of the interior of the adjustment component of the present invention.

[0026] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at point A in the middle.

[0027] Figure 7 Schematic diagram of the guide frame structure of the present invention.

[0028] Figure 8 Schematic diagram of the lifting assembly of the present invention.

[0029] Figure 9 Schematic diagram of the processing components of the present invention.

[0030] Figure 10 Schematic diagram of the flip adjustment of the adjustment component of the present invention.

[0031] In the figure: 1. Frame; 2. Lifting assembly; 201. Support frame; 202. Slider; 203. Rotating rod; 204. Support plate; 205. Bidirectional screw; 3. Processing assembly; 301. Slot frame; 302. First motor; 303. Screw; 304. First cylinder; 305. Machine base; 306. Second motor; 307. Grinding head; 4. Guide frame; 401. Curved rack; 402. Curved frame; 403. Guide groove; 5. Pushing assembly; 501 , second cylinder; 502, movable groove plate; 6, adjustment assembly; 601, gear ring; 602, micro motor; 603, connecting block; 604, carrier plate; 605, driving gear; 7, valve body; 8, gear; 9, sliding frame; 10, screw; 11, moving block; 12, support assembly; 1201, small cylinder; 1202, inclined plate; 1203, connecting rod; 1204, circular plate; 1205, sliding rod; 1206, spring; 1207, clamping plate. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Example: Figures 1-10 As shown, the present invention provides a positioning tool for valve production, including a frame 1 and a valve body 7. A guide frame 4 is installed on one side of the frame 1. The guide frame 4 is arranged in an arc shape. A gear 8 and a sliding frame 9 are respectively provided at both ends of the guide frame 4. One end of the sliding frame 9 is rotatably connected to the rotating shaft of the gear 8. A push assembly 5 is installed on the outside of the guide frame 4 to drive the gear 8 and the sliding frame 9; A moving block 11 is slidably connected to the sliding frame 9, and a screw rod 10 is rotatably connected to the sliding frame 9. The screw rod 10 passes through the moving block 11 and is threadedly connected. The outer wall of the moving block 11 is rotatably connected to an adjusting component 6, which is suitable for valves with different bevel angles; The regulating assembly 6 is provided with a support assembly 12, which is suitable for valves of different calibers; A lifting assembly 2 is installed at the bottom of the frame 1 to facilitate lifting and positioning the valve body 7; A processing assembly 3 for processing the outer wall of the valve body 7 is installed on the top of the frame 1.

[0034] like Figure 2As shown, the guide frame 4 includes an arc-shaped rack 401, an arc-shaped frame 402 and a guide groove 403. The arc-shaped rack 401 is connected to the arc-shaped frame 402 and the guide groove 403. The arc-shaped rack 401 is located between the guide groove 403 and the arc-shaped frame 402. The gear 8 is meshed with the outer wall of the arc-shaped rack 401, the sliding frame 9 is slidably connected to the arc-shaped frame 402, and the guide groove 403 guides the rotating shaft of the gear 8; The purpose of this arrangement is to allow the gear 8 and the sliding frame 9 to move closer to or farther from each other by pushing the pushing component 5, and the arc rack 401, the arc frame 402 and the guide groove 403 provide arc-shaped guidance for the movement of the gear 8 and the sliding frame 9.

[0035] like Figure 7 As shown, the pushing assembly 5 includes a second cylinder 501, the outer wall of the second cylinder 501 is connected to the frame 1, the output shaft of the second cylinder 501 is connected to the movable slot plate 502, and the rotating shaft of the gear 8 extends to the inner side of the movable slot plate 502 and is slidably connected; The purpose of this arrangement is to extend and retract the output end of the second cylinder 501 to drive the movable slot plate 502 to move, and the two ends of the movable slot plate 502 pull the rotating shaft of the gear 8 downward, and the rotating shaft of the gear 8 moves along the guide slot 403. During the movement, it moves on the inner wall of the movable slot plate 502, so that the two gears 8 are close to each other along the arc-shaped rack 401.

[0036] Figure 4 As shown, the adjustment assembly 6 includes a gear ring 601, the outer wall of the gear ring 601 is rotatably connected to the outer wall of the moving block 11, the inner wall of the gear ring 601 is provided with a moving groove, and a carrier plate 604 is provided in the middle of the gear ring 601. The two ends of the carrier plate 604 are rotatably connected to the connecting blocks 603, and the connecting blocks 603 are rotatably connected to the wheels; The purpose of such arrangement is that the carrier plate 604 is rotatably connected between the two connecting blocks 603 and moves in a circular motion on the inner wall of the gear ring 601 through the connecting blocks 603 .

[0037] Figure 4 As shown, a micro motor 602 is mounted on the outer wall of the connecting block 603, the output shaft of the micro motor 602 is connected to the rotating shaft of the wheel, the output shaft of the micro motor 602 is connected to a driving gear 605, and a plurality of teeth are provided on the inner wall of the gear ring 601, and the driving gear 605 and the teeth are meshed with each other; The purpose of such a configuration is to drive the driving gear 605 to rotate through the output shaft of the micro motor 602 , and the driving gear 605 engages with the teeth to drive the carrier plate 604 to perform a circular motion inside the gear ring 601 .

[0038] like Figure 5As shown, the opening assembly 12 includes a small cylinder 1201, which is mounted on the outer wall of the carrier plate 604. A connecting rod 1203 is connected to the outer wall of the carrier plate 604, and one end of the connecting rod 1203 is fixedly connected to the circular plate 1204. The purpose of such arrangement is that the carrier plate 604 supports the gear ring 601 , the connecting rod 1203 and the circular plate 1204 .

[0039] Figure 5 As shown, an inclined plate 1202 is fixedly connected to the outer wall of the output shaft of the small cylinder 1201, a slide groove is provided on the circular plate 1204, a sliding rod 1205 is slidably connected to the inner wall of the slide groove, a spring 1206 is provided between the sliding rod 1205 and the inner wall of the circular plate 1204, the sliding rod 1205 passes through the circular plate 1204 and is slidably connected, one end of the circular plate 1204 is connected to a clamping plate 1207, and a roller is rotatably connected to the outer wall of the clamping plate 1207; The purpose of this setting is to drive the inclined plate 1202 to move through the output end of the small cylinder 1201, and the inclined plate 1202 pushes and adjusts the sliding rod 1205 through the slide groove. The spring 1206 is used to reset the sliding rod 1205, and the clamping plate 1207 is used to be clamped on the outside of the port of the valve body 7, and the roller is used to fit the inner wall of the port of the valve body 7.

[0040] Figure 6 As shown, an inclined surface is provided on the bottom outer wall of the sliding rod 1205, and the surface of the inclined plate 1202 and the inclined surface of the sliding rod 1205 fit together; The purpose of this arrangement is to push and press the sliding rod 1205 through the inclined surface of the inclined plate 1202.

[0041] The lifting assembly 2 includes a support frame 201, which is mounted at the bottom of the frame 1. Two sliders 202 are slidably connected to the inner wall of the support frame 201. A bidirectional screw 205 is rotatably connected to the support frame 201. The bidirectional screw 205 passes through the two sliders 202 and is threadedly connected. The top of the slider 202 is rotatably connected to a rotating rod 203 , and the top of the rotating rod 203 is rotatably connected to a supporting plate 204 ; The purpose of this setting is to drive the two sliders 202 at the same time by rotating the bidirectional screw 205 and the bidirectional thread setting, so that the two sliders 202 move away from or closer to each other, and the rotating rod 203 is rotated and connected, thereby lifting and lowering the support plate 204.

[0042] The processing assembly 3 includes a trough frame 301, which is mounted on the top of the frame 1. A sliding block is slidably connected to the inner wall of the trough frame 301. A first motor 302 is mounted on the outer wall of the trough frame 301. A screw rod 303 is connected to the output shaft of the first motor 302. The screw rod 303 passes through the sliding block and is threadedly connected. A first cylinder 304 is mounted on the outer wall of the sliding block. The output end of the first cylinder 304 is connected to a base 305. A second motor 306 is mounted on the base 305. A grinding head 307 is mounted on the output shaft of the second motor 306. The purpose of this arrangement is to drive the screw rod 303 to rotate by the first motor 302, drive the sliding block to move, and thereby drive the second motor 306 and the grinding head 307 to move to different positions of the valve body 7. The extension and retraction of the first cylinder 304 allows the grinding head 307 to approach the outer wall of the valve body 7. The output shaft of the second motor 306 drives the grinding head 307 to rotate, thereby grinding the outer wall of the valve body 7.

[0043] Working Principle: There are straight-through straight-angle, right-angle and oblique-angle valves. According to the different angles formed by the two ports of the valve body 7, the adjustment component 6 and the support component 12 are adjusted at different angles. In addition, the valve body 7 has different lengths. Before fixing the valve body 7, it is necessary to ensure that the length of the valve body 7 is less than the maximum positioning distance between the two adjustment components 6. According to the required length of the valve body 7, the output end of the second cylinder 501 is extended and retracted, driving the movable slot plate 502 to move. The two ends of the movable slot plate 502 pull the rotating shaft of the gear 8 downward, and the rotating shaft of the gear 8 moves along the guide groove 403. During the movement, it moves on the inner wall of the movable slot plate 502, so that the two gears 8 move closer to each other along the arc-shaped rack 401, and at the same time drives the sliding frame 9, the adjustment assembly 6 and the support assembly 12 to move closer to each other, thereby adapting to the positioning and fixing of valve bodies 7 of different lengths; The valve body 7 is placed on the support plate 204. By rotating the bidirectional screw 205 and the bidirectional thread setting, the two sliders 202 are driven at the same time, so that the two sliders 202 move away from or closer to each other, and the rotating rod 203 is rotated to connect, thereby lifting the support plate 204, so that the valve body 7 is close to the support assembly 12, which is convenient for positioning and fixing the port of the valve body 7. By rotating the screw 10, the moving block 11 is driven to move, thereby further adjusting the distance between the support assembly 12 and the port of the valve body 7, and fine-tuning it to better adjust and fix it; The gear ring 601 is rotatably connected to the moving block 11, thereby adapting to the arc-shaped offset movement of the sliding frame 9. The carrier plate 604 is rotatably connected between the two connecting blocks 603. When the two ports of the valve body 7 are not coaxial, when presenting an angled valve, the two ports are not parallel to each other, when they are tilted to each other, and when they present different angles, the two carrier plates 604 can be independently rotatably connected between the two connecting blocks 603, thereby facilitating the docking, positioning, and fixation of the support assembly 12 with the port of the valve body 7. After the ports at both ends of the valve body 7 are positioned and fixed by the opening assembly 12, since the two gears 8 and the two sliding frames 9 are symmetrically arranged on the arc-shaped rack 401, the two gear rings 601 cooperate with the opening assembly 12 to position the two ports and maintain a stable vertical state. Under the vertical state of gravity, the two gear rings 601 are vertical and parallel to each other. At this time, the output shaft of the micro motor 602 drives the driving gear 605 to rotate. The driving gear 605 engages with the teeth, driving the carrier plate 604 to perform a circular motion on the inner side of the gear ring 601, thereby driving the opening assembly 12 and the valve body 7 to flip, which is beneficial for grinding different positions of the outer wall of the valve body 7; When positioning and fixing the port of the valve body 7, the output end of the small cylinder 1201 drives the inclined plate 1202 to move. The inclined plate 1202 passes through the slide groove to push and adjust the sliding rod 1205. The spring 1206 is used to reset the sliding rod 1205, so that the support assembly 12 is suitable for clamping ports of different calibers. The clamping plate 1207 is used to clamp the outer side of the port of the valve body 7 to prevent the valve body 7 from deviating and play a role in positioning and fixing. The roller is used to fit the inner wall of the port of the valve body 7 to reduce the clamping damage to the inner wall of the valve body 7. The first motor 302 drives the screw rod 303 to rotate, drives the sliding block to move, and thus drives the second motor 306 and the grinding head 307 to move to different positions of the valve body 7. The extension and contraction of the first cylinder 304 allows the grinding head 307 to approach the outer wall of the valve body 7. The output shaft of the second motor 306 drives the grinding head 307 to rotate, and grinds the outer wall of the valve body 7.

[0044] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0045] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A positioning tool for valve production, comprising a frame (1) and a valve body (7), characterized in that: A guide frame (4) is installed on one side of the frame (1), and the guide frame (4) is arranged in an arc shape. A gear (8) and a sliding frame (9) are respectively provided at both ends of the guide frame (4), and one end of the sliding frame (9) is rotatably connected to the rotating shaft of the gear (8); A pushing assembly (5) is installed on the outer side of the guide frame (4) for driving the gear (8) and the sliding frame (9); The sliding frame (9) is slidably connected to a moving block (11), and the sliding frame (9) is rotatably connected to a screw rod (10), and the screw rod (10) passes through the moving block (11) and is threadedly connected; An adjusting assembly (6) is rotatably connected to the outer wall of the moving block (11), and is suitable for valves with different bevel angles; The regulating assembly (6) is provided with a support assembly (12) suitable for valves of different calibers; A lifting assembly (2) is installed at the bottom of the frame (1) to facilitate lifting and positioning the valve body (7); A processing assembly (3) for processing the outer wall of the valve body (7) is installed on the top of the frame (1).

2. A positioning tool for valve production according to claim 1, characterized in that: The guide frame (4) comprises an arc-shaped rack (401), an arc-shaped frame (402) and a guide groove (403); the arc-shaped rack (401), the arc-shaped frame (402) and the guide groove (403) are connected to each other, and the arc-shaped rack (401) is located between the guide groove (403) and the arc-shaped frame (402); The gear (8) is meshed with the outer wall of the arc-shaped rack (401), the sliding frame (9) is slidably connected to the arc-shaped frame (402), and the guide groove (403) guides the rotating shaft of the gear (8).

3. A positioning tool for valve production according to claim 2, characterized in that: The pushing assembly (5) includes a second cylinder (501), the outer wall of the second cylinder (501) is connected to the frame (1), the output shaft of the second cylinder (501) is connected to a movable slot plate (502), and the rotating shaft of the gear (8) extends to the inner side of the movable slot plate (502) and is slidably connected thereto.

4. A positioning tool for valve production according to claim 3, characterized in that: The adjustment assembly (6) comprises a gear ring (601), the outer wall of the gear ring (601) being rotatably connected to the outer wall of the moving block (11), a moving groove being provided on the inner wall of the gear ring (601), a carrier plate (604) being provided in the middle of the gear ring (601), both ends of the carrier plate (604) being rotatably connected to connecting blocks (603), and a wheel being rotatably connected to the connecting block (603).

5. A positioning tool for valve production according to claim 4, characterized in that: A micro motor (602) is mounted on the outer wall of the connecting block (603), the output shaft of the micro motor (602) is connected to the rotating shaft of the wheel, the output shaft of the micro motor (602) is connected to a driving gear (605), a plurality of teeth are provided on the inner wall of the gear ring (601), and the driving gear (605) and the teeth are meshed with each other.

6. A positioning tool for valve production according to claim 5, characterized in that: The support assembly (12) comprises a small cylinder (1201), which is mounted on the outer wall of the carrier plate (604). A connecting rod (1203) is connected to the outer wall of the carrier plate (604), and one end of the connecting rod (1203) is fixedly connected to the circular plate (1204).

7. A positioning tool for valve production according to claim 6, characterized in that: An inclined plate (1202) is fixedly connected to the outer wall of the output shaft of the small cylinder (1201); a sliding groove is provided on the circular plate (1204); a sliding rod (1205) is slidably connected to the inner wall of the sliding groove; a spring (1206) is provided between the sliding rod (1205) and the inner wall of the circular plate (1204); the sliding rod (1205) passes through the circular plate (1204) and is slidably connected; one end of the circular plate (1204) is connected to a clamping plate (1207); a roller is rotatably connected to the outer wall of the clamping plate (1207).

8. A positioning tool for valve production according to claim 7, characterized in that: An inclined surface is provided on the bottom outer wall of the sliding rod (1205), and the surface of the inclined plate (1202) and the inclined surface of the sliding rod (1205) fit together.

9. A positioning tool for valve production according to claim 8, characterized in that: The lifting assembly (2) comprises a support frame (201), the support frame (201) being mounted on the bottom of the frame (1), two sliders (202) being slidably connected to the inner wall of the support frame (201), a bidirectional screw (205) being rotatably connected to the support frame (201), and the bidirectional screw (205) passing through the two sliders (202) and being threadedly connected; The top of the slider (202) is rotatably connected to a rotating rod (203), and the top of the rotating rod (203) is rotatably connected to a supporting plate (204).

10. A positioning tool for valve production according to claim 9, characterized in that: The processing assembly (3) includes a slot frame (301), the slot frame (301) is mounted on the top of the frame (1), a sliding block is slidably connected to the inner wall of the slot frame (301), a first motor (302) is mounted on the outer wall of the slot frame (301), a screw rod (303) is connected to the output shaft of the first motor (302), the screw rod (303) passes through the sliding block and is threadedly connected, a first cylinder (304) is mounted on the outer wall of the sliding block, an output end of the first cylinder (304) is connected to a base (305), a second motor (306) is mounted on the base (305), and a grinding head (307) is mounted on the output shaft of the second motor (306).

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