A positioning tool for machining high-temperature axial flow regulating valves

Abstract

The present invention relates to the field of valve processing technology, and in particular to a positioning tool for processing high-temperature axial flow regulating valves, comprising a tooling table and a drilling mechanism arranged on the tooling table, a conveying table is arranged next to the tooling table, conveying lines are arranged at both ends of the inner side of the conveying table, a fixing frame is arranged above the conveying table and the tooling table, a pair of upper V-shaped seats are fixedly connected to the top of the tooling table, an inwardly recessed groove is provided at the top of the tooling table and between the upper V-shaped seats, a flipping and clamping mechanism for flipping and clamping the valve body is provided in the groove, a sliding block is slidably connected to the inner side of the fixing frame, sliding grooves are provided on both sides of the sliding block, an L-shaped plate is slidably connected to the inner side of the sliding groove, and a straight rod is slidably connected to the side wall of the L-shaped plate. The present invention can automatically load the axial flow regulating valve onto the tooling table through the mutual cooperation of structures such as a driving mechanism, a fixing block and a sliding block, thereby eliminating the need for workers to carry it, saving time and effort, and greatly improving the convenience performance of the device.

Description

Technical Field

[0001] The invention relates to the technical field of valve processing, and in particular to a positioning tool used for processing a high-temperature axial flow regulating valve. Background Art

[0002] When the high-temperature axial flow control valve is in control operation, the movement direction of the valve core and the flow direction of the medium are coaxial with the pipeline axis. It has the advantages of good dynamic stability of the conveying medium, low vibration and noise, strong pressure bearing capacity and small pressure loss. The axial flow control valve is a valve body structure with a flange interface. Therefore, when processing the axial flow control valve, it is often necessary to drill the flange interface so that other pipelines can be connected to the axial flow control valve. In order to ensure the stability of the valve body during the drilling process, a positioning tool is required to fix the valve body.

[0003] In the prior art, a three-axis drilling machine for drilling holes in valve flanges is disclosed with publication number CN110860904A. When drilling holes, the transmission motor and the cylinder are started so that the milling cutters of each drilling structure correspond to the positions to be drilled of the flange respectively. Then, the feed motor of the second feed assembly is started so that the milling cutter contacts the positions to be drilled of the flange. Then, the second motor is started to rotate the milling cutter to mill the flange flat. Then, the transmission motor and the cylinder are started in reverse so that the drill bits of each drilling structure correspond to the drilling positions of the flange respectively. Finally, the feed motor of the first feed assembly and the first motor are started so that the drill bits of the three drilling structures feed and drill holes in the flange at the same time, thereby improving the drilling rate of the valve flange.

[0004] However, there are still some problems in the actual processing. Since the positioning tooling on the drilling machine lacks an automatic material changing mechanism, after the drilling of the axial flow regulating valve is completed, workers are required to move the valve body to be processed to the tooling and then fix it, which is not only time-consuming and labor-intensive, but also greatly reduces the production efficiency of the device.

[0005] Therefore, a positioning tool for high-temperature axial flow control valve processing is proposed to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a positioning tool for processing a high-temperature axial flow regulating valve.

[0007] In order to achieve the above purpose, the technical solution adopted by the present invention is: a positioning tool for high-temperature axial flow regulating valve processing, including a tooling table and a drilling mechanism arranged on the tooling table, a conveying table is arranged next to the tooling table, and conveying lines are arranged at both ends of the inner side of the conveying table, and a fixing frame is arranged above the conveying table and the tooling table, a pair of upper V-shaped seats are fixedly connected to the top of the tooling table, and an inward groove is opened at the top of the tooling table and located between the upper V-shaped seats, and a flip clamping mechanism for flipping and clamping the valve body is arranged in the groove, and a sliding block is slidably connected to the inner side of the fixing frame , both sides of the sliding block are provided with sliding grooves, the inner sides of the sliding grooves are slidably connected with L-shaped plates, the side walls of the L-shaped plates are penetrated by straight rods for sliding connection, the side of the straight rods close to each other is fixedly connected with a curved plate, the bottom ends of the side walls of the curved plates are penetrated by fixed blocks for sliding connection, lower straight grooves are provided at both ends of the inner side of the fixed frame, vertical grooves and oblique grooves are respectively provided at the tops of the two ends of the lower straight grooves, and an upper straight groove is provided between the vertical grooves and the tops of the oblique grooves, the ends of the straight rods are movably connected to the inner sides of the lower straight grooves, a driving mechanism is provided on the inner side of the fixed frame, and a rear plate is fixedly connected to the inner side of the fixed frame.

[0008] In the above technical scheme, further, an upper spring is fixedly connected between the bent plate and the side wall of the L-shaped plate, the end of the straight rod is set to a smooth arc surface, an upper clamping groove is opened at the bottom of the inclined groove, and the connection between the upper clamping groove and the inclined groove is inclined, a lower clamping groove is opened on the inner side of the lower straight groove and close to one end of the vertical groove, and the connection between the lower clamping groove and the lower straight groove is inclined, a pair of return springs are fixedly connected between the inner side of the slide groove and the top of the L-shaped plate, and a pair of connecting plates are fixedly connected between the two sides of the outer wall of the fixed frame and the outer wall of the conveying platform.

[0009] In the above technical solution, further, the fixed block is inclined close to one side, and the inclined surface of the fixed block is arranged on the side close to the conveyor line, a baffle is fixedly connected to the top of the conveyor platform and above the conveyor line, and a lower spring is fixedly connected between the side wall of the fixed block and the side wall of the bending plate.

[0010] In the above technical solution, further, the driving mechanism includes a driving motor, the driving motor is fixedly connected to the side wall of the fixed frame, a threaded rod is rotatably connected between the side wall of the rear plate and the inner side of the fixed frame, the output end of the driving motor passes through the side wall of the fixed frame and is fixedly connected to the threaded rod, and the threaded rod passes through the inner wall of the sliding block and is threadedly connected.

[0011] In the above technical solution, further, a pair of guide rods are fixedly connected between the side wall of the rear plate and the inner side of the fixed frame, and the guide rods are arranged to penetrate the inner side wall of the sliding block.

[0012] In the above technical scheme, further, the flip clamping mechanism includes a lower V-shaped seat and an electric telescopic cylinder, the electric telescopic cylinder is fixedly connected to the top of the fixed frame, the output end of the electric telescopic cylinder passes through the top of the fixed frame and is fixedly connected to a top block, the side walls of the rear plate and located on both sides of the top block are rotatably connected to guide rollers, the lower V-shaped seat is arranged on the inner side of the groove, the two ends of the inner side of the groove are fixedly connected to fan-shaped plates, the side walls of the fan-shaped plates are provided with fan-shaped grooves, the inner sides of the fan-shaped grooves are slidably connected with arc blocks, the arc blocks are fixedly connected to the side walls of the lower V-shaped seat on one side, the side walls of the arc blocks are fixedly connected with pull ropes, the other ends of the pull ropes pass through the top of the fan plate and the outer wall of the guide roller and are respectively fixedly connected to the two sides of the top block.

[0013] In the above technical solution, further, the top block is made of elastic rubber material, and the pull rope is made of fiber material with certain elasticity.

[0014] In the above technical solution, further, an arc spring is fixedly connected between the inner side of the fan-shaped groove and the side wall of the arc block, and a chip discharge opening is obliquely opened at the bottom of the groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention can automatically load the axial flow regulating valve onto the workbench through the cooperation of the driving mechanism, the fixed block and the sliding block, thereby eliminating the need for workers to carry the valve, saving time and effort and greatly improving the convenience of the device.

[0017] 2. The present invention can also automatically flip over and fix the transported axial flow regulating valve by setting up the flipping clamping mechanism without manual operation, thereby further improving the convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the front three-dimensional structure of the tooling table of the present invention;

[0019] Figure 2 It is a schematic diagram of a half-sectioned three-dimensional structure of the front side of the tooling table of the present invention;

[0020] Figure 3 It is a schematic diagram of the overall appearance structure of the flip clamping mechanism of the present invention;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the conveying platform and the fixing frame of the present invention in full cutaway side view;

[0022] Figure 5 The appended Figure 4 A schematic diagram of the partially enlarged structure at center A;

[0023] Figure 6This is a schematic diagram of the three-dimensional structure of the fixing frame of the present invention when viewed from above;

[0024] Figure 7 It is a schematic diagram of the overall appearance of the three-dimensional structure of the sliding block of the present invention;

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the fixed frame of the present invention in full cross-section from the side.

[0026] In the figure: 1, tooling table; 2, drilling mechanism; 3, conveying table; 4, conveying line; 5, fixed frame; 6, upper V-shaped seat; 7, groove; 8, sliding block; 9, slide groove; 10, L-shaped plate; 11, straight rod; 12, bending plate; 13, fixed block; 14, lower straight groove; 15, vertical groove; 16, inclined groove; 17, upper straight groove; 18, upper spring; 19, lower clamping groove; 20, baffle; 21, lower spring; 22, driving motor; 23, back plate; 24, threaded rod; 25, guide rod; 26, reset spring; 27, connecting plate; 28, electric telescopic cylinder; 29, lower V-shaped seat; 30, top block; 31, guide roller; 32, fan-shaped plate; 33, fan-shaped groove; 34, arc block; 35, pull rope; 36, arc spring; 37, upper clamping groove; 38, chip removal port. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] like Figure 1-8A positioning tool for processing a high-temperature axial-flow regulating valve shown in the figure comprises a tooling table 1 and a drilling mechanism 2 arranged on the tooling table 1. The drilling mechanism 2 is mainly composed of a moving mechanism and a punching mechanism, which is a mature technology in the prior art and will not be described in detail here. A conveying table 3 is arranged next to the tooling table 1. Conveying lines 4 are arranged at both ends of the inner side of the conveying table 3. The conveying lines 4 are mainly composed of structures such as a motor, a conveyor belt and a conveyor roller, which are mature technologies in the prior art and will not be described in detail here. There is a gap between the two conveying lines 4 to facilitate the sliding of the joint below the axial-flow regulating valve. A fixing frame 5 is arranged above the conveying table 3 and the tooling table 1. A pair of upper V-shaped seats 6 are fixedly connected to the top of the tooling table 1. An inwardly recessed groove is provided at the top of the tooling table 1 and between the upper V-shaped seats 6. Groove 7, a flip clamping mechanism for flipping and clamping the valve body is provided in the groove 7, a sliding block 8 is slidably connected to the inner side of the fixed frame 5, and sliding grooves 9 are provided on both sides of the sliding block 8, and L-shaped plates 10 are slidably connected to the inner side of the sliding grooves 9, and the side walls of the L-shaped plates 10 are penetrated by straight rods 11 for sliding connection, and the side close to the straight rods 11 is fixedly connected with a curved plate 12, and the bottom end of the side wall of the curved plate 12 is penetrated by a fixed block 13 for sliding connection, and lower straight grooves 14 are provided at both ends of the inner side of the fixed frame 5, and vertical grooves 15 and oblique grooves 16 are provided at the tops of the two ends of the lower straight groove 14, respectively, and an upper straight groove 17 is provided between the tops of the vertical grooves 15 and the oblique grooves 16, and the ends of the straight rods 11 are movably connected to the inner side of the lower straight groove 14, a driving mechanism is provided on the inner side of the fixed frame 5, and a rear plate 23 is fixedly connected to the inner side of the fixed frame 5;

[0030] An upper spring 18 is fixedly connected between the curved plate 12 and the side wall of the L-shaped plate 10, and the upper spring 18 facilitates the straight rod 11 to slide into the specified position. The end of the straight rod 11 is set as a smooth arc surface, which is convenient for the straight rod 11 to slide out of the upper clamping groove 37 and the lower clamping groove 19. An upper clamping groove 37 is provided at the bottom of the inclined groove 16, and the connection between the upper clamping groove 37 and the inclined groove 16 is inclined. A lower clamping groove 19 is provided on the inner side of the lower straight groove 14 and close to one end of the vertical groove 15, and the connection between the lower clamping groove 19 and the lower straight groove 14 is inclined. The depth of the lower clamping groove 19 is the same as the length of the fixed block 13 inserted into the axial flow regulating valve, and the depth of the lower clamping groove 19 is deeper than the depth of the upper clamping groove 37. A pair of reset springs 26 are fixedly connected between the inner side of the slide groove 9 and the top of the L-shaped plate 10, and the reset spring 26 facilitates the L-shaped plate 10 to be pulled for rapid reset;

[0031] A pair of connecting plates 27 are fixedly connected between the outer walls of the fixed frame 5 and the outer walls of the conveying platform 3 on both sides, and the position of the fixed frame 5 is supported and fixed by the connecting plates 27. The fixed block 13 is tilted on one side close to the fixed block 13, which is convenient for the axial flow regulating valve to squeeze the fixed block 13 and slide outward, so as to facilitate the fixed block 13 to be stuck into the inner wall of the axial flow regulating valve and pull up the axial flow regulating valve. The inclined surface of the fixed block 13 is set on the side close to the conveying line 4. The top of the conveying platform 3 and above the conveying line 4 are fixedly connected with a baffle 20, and the position of the axial flow regulating valve on the conveying line 4 can be limited by the baffle 20. The side wall of the fixed block 13 and the side wall of the bending plate 12 are fixedly connected with a lower spring 21;

[0032] The driving mechanism includes a driving motor 22, which is fixedly connected to the side wall of the fixed frame 5. A threaded rod 24 is rotatably connected between the side wall of the rear plate 23 and the inner side of the fixed frame 5. The output end of the driving motor 22 penetrates the side wall of the fixed frame 5 and is fixedly connected to the threaded rod 24. The threaded rod 24 penetrates and is threadedly connected to the inner wall of the sliding block 8.

[0033] Before processing, the axial flow regulating valve body processed by grinding and other processes is conveyed to the side of the tooling table 1 by the conveyor line 4. At this time, the axial flow regulating valve is restricted by the baffle 20 and cannot move forward. Then the drive motor 22 can be controlled to start and drive the threaded rod 24 to move, thereby driving the threaded sliding block 8 to move (the straight rod 11 in the initial position is located next to the lower slot 19 in the lower straight slot 14), and at the same time drives the straight rod 11 to slide on the inner side of the lower straight slot 14, and then the straight rod 11 slides to the end of the lower straight slot 14. At this time, the bending plate 12 will pass by the axial flow regulating valve next to the baffle 20, and the fixed block 13 The inclined surface will be squeezed by the axial flow regulating valve, thereby pushing the fixed block 13 to slide to both sides, and stretching the lower spring 21 at the same time. Then, when the fixed block 13 slides out of the squeezing position of the outer wall of the axial flow regulating valve and slides into the inner side of the axial flow regulating valve, the squeezing of the fixed block 13 will be lost, and then the fixed block 13 will be pushed to slide into the inner side of the axial flow regulating valve under the elastic force of the lower spring 21. At this time, the straight rod 11 is located beside the upper groove 37, so that the straight rod 11 is pushed into the upper groove 37 under the elastic force of the upper spring 18, and the bending plate 12 and the fixed block 13 are driven to slide at the same time (the fixed block 13 will not slide out of the inner side of the axial flow regulating valve at this time);

[0034] Then the driving motor 22 can be controlled to rotate in the opposite direction, driving the threaded rod 24 to reverse, and driving the sliding block 8 to move in the opposite direction to reset. Since there is a step between the upper slot 37 and the lower straight slot 14, the straight rod 11 will be pushed in the direction of the inclined slot 16 under the thrust of the sliding block 8, and then the straight rod 11 will slide out of the upper slot 37 and slide into the inclined slot 16, and the upper spring 18 will be stretched outward, and then the straight rod 11 will be driven to slide upward under the action of the inclined slot 16, and the L-shaped plate 10 will slide upward in the slide slot 9, and gradually compress and reset. The spring 26 is positioned, and the bending plate 12 and the fixing block 13 are driven to slide obliquely upward at the same time. At this time, the fixing block 13 is inserted into the inner side of the axial flow regulating valve, and then the axial flow regulating valve is pulled to move obliquely upward together (when starting, the baffle 20 will block the movement of the axial flow regulating valve, causing the axial flow regulating valve to be displaced, and then when it moves out of the baffle 20, it will flip downward and reset under the self-gravity of the bottom joint of the axial flow regulating valve), and then the straight rod 11 slides into the upper straight groove 17, and continues to drive the axial flow regulating valve to move above the tooling table 1;

[0035] Finally, the axial flow regulating valve is driven by the driving motor 22 to move to the top of the upper V-shaped seat 6. At this time, the straight rod 11 slides into the end of the upper straight groove 17 and the top of the vertical groove 15. At this time, the bottom of the straight rod 11 loses its restriction, and then the straight rod 11 is driven to slide downward into the vertical groove 15 under the pulling force of the return spring 26, and at the same time drives the L-shaped plate 10 to slide inside the slide groove 9, and drives the bent plate 12 and the fixed block 13 to slide downward, so that the axial flow regulating valve is placed on the upper V-shaped seat 6, and at the same time, the joint at the bottom of the axial flow regulating valve is inserted into the groove 7. Then, when the straight rod 11 moves to the bottom of the vertical groove 15, the straight rod 11 is located next to the lower groove 19, and then the straight rod 11 is pushed into the lower groove 19 under the elastic force of the upper spring 18, and at the same time, the bending plate 12 and the fixed block 13 are driven to move to both sides, so that the fixed block 13 slides out of the inner side of the axial flow regulating valve, thereby releasing the restriction on the axial flow regulating valve, and then the driving motor 22 is controlled to rotate forward to drive the sliding block 8 to reset, so that the axial flow regulating valve is loaded onto the tooling table 1, so that workers do not need to carry it, saving time and effort, and greatly improving the convenience performance of the device.

[0036] In order to improve the stability of the device during operation, a pair of guide rods 25 are fixedly connected between the side wall of the rear plate 23 and the inner side of the fixed frame 5, and the guide rods 25 are arranged to pass through the inner wall of the sliding block 8. Through the arrangement of the guide rods 25, it can play a guiding role when the threaded rod 24 rotates to drive the sliding block 8 to move, thereby preventing the sliding block 8 from rotating with the threaded rod 24, thereby improving the stability of the device during operation.

[0037] In order to automatically flip over and fix the axial flow regulating valve that has been transported, the flipping clamping mechanism includes a lower V-shaped seat 29 and an electric telescopic cylinder 28. The electric telescopic cylinder 28 is fixedly connected to the top of the fixed frame 5. The output end of the electric telescopic cylinder 28 passes through the top of the fixed frame 5 and is fixedly connected to a top block 30. The side walls of the rear plate 23 and the two sides of the top block 30 are rotatably connected to guide rollers 31. The lower V-shaped seat 29 is arranged on the inner side of the groove 7. Both ends of the inner side of the groove 7 are fixedly connected to a fan-shaped plate 32. The side walls of the fan-shaped plate 32 are provided with fan-shaped grooves 33. The inner sides of the fan-shaped grooves 33 are slidably connected to arc blocks 34. The arc blocks 34 are fixedly connected to the side walls of the lower V-shaped seat 29 on one side. The side walls of the arc blocks 34 are fixedly connected to pull ropes 35. The other ends of the pull ropes 35 pass through the top of the fan plate 32 and the outer walls of the guide rollers 31 and are respectively fixedly connected to the two sides of the top block 30.

[0038] When the axial-flow regulating valve is transported from the conveying line 4 to the upper V-shaped seat 6, the axial-flow regulating valve is hooked up by the fixing block 13. At this time, under the weight of the axial-flow regulating valve itself, the bottom of the three-way joint will flip downward under its own weight and keep a downward vertical state. Then, when the straight rod 11 moves to the vertical groove 15, the bottom joint of the axial-flow regulating valve will be inserted into the groove 7, next to the lower V-shaped seat 29. Then, the electric telescopic cylinder 28 can be controlled to start pushing the top block 30 to move downward, and at the same time, the pull rope 35 is pulled downward. Then, under the guidance of the guide roller 31, the other end of the pull rope 35 is pulled upward, and at the same time, the arc block 34 is driven to slide on the inner side of the fan-shaped groove 33, thereby driving the lower The V-shaped seat 29 is flipped so that the V-shaped groove on the side wall of the lower V-shaped seat 29 is inserted into the outer wall of the axial flow regulating valve, and then the top block 30 continues to move downward, so that the lower V-shaped seat 29 pushes the joint at the bottom of the axial flow regulating valve to flip upward. Subsequently, when the axial flow regulating valve is flipped to a horizontal state, the arc block 34 will slide to the top of the fan-shaped groove 33 and be restricted. At this time, the top block 30 moves to the top of the axial flow regulating valve, and then the axial flow regulating valve is tightly fixed between the top block 30 and the lower V-shaped seat 29. Finally, the drilling mechanism 2 can be controlled to start drilling the axial flow regulating valve. After the processing is completed, the above operation is repeated in reverse, and the processed axial flow regulating valve can be taken out.

[0039] In order to clamp the axial flow regulating valve, the top block 30 is made of elastic rubber material, and the pull rope 35 is made of fiber material with a certain degree of elasticity. By setting the top block 30 and the pull rope 35 to elastic materials, it is convenient to squeeze the top block 30 downward and pull the lower V-shaped seat 29 upward, so that the valve body is tightly clamped between the top block 30 and the lower V-shaped seat 29.

[0040] In order to quickly pull the lower V-shaped seat 29 to reset, an arc spring 36 is fixedly connected between the inner side of the fan-shaped groove 33 and the side wall of the arc block 34. Through the setting of the arc spring 36, the arc spring 36 can be pulled when the electric telescopic cylinder 28 pulls the lower V-shaped seat 29 to slide upward. Then, when the electric telescopic cylinder 28 is reset, the arc block 34 will be quickly reset under the elastic force of the arc spring 36, and the pull rope 35 will be pulled back to reset. A chip discharge port 38 is obliquely opened at the bottom of the groove 7. The setting of the chip discharge port 38 facilitates the discharge of debris falling into the groove 7, thereby improving the convenience of the device.

[0041] The basic principles, main features and advantages of the present invention are shown and described above.

[0042] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and the specification only describe the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A positioning tool for machining a high-temperature axial flow regulating valve, comprising a tooling table (1), and a drilling mechanism (2) arranged on the tooling table (1), characterized in that: A conveying platform (3) is provided next to the tooling platform (1), and conveying lines (4) are provided at both ends of the inner side of the conveying platform (3). A fixed frame (5) is provided above the conveying platform (3) and the tooling platform (1). A pair of upper V-shaped seats (6) are fixedly connected to the top of the tooling platform (1). An inwardly recessed groove (7) is provided at the top of the tooling platform (1) and between the upper V-shaped seats (6). A flipping and clamping mechanism for flipping and clamping the valve body is provided in the groove (7). A sliding block (8) is slidably connected to the inner side of the fixed frame (5), and sliding grooves (9) are provided on both sides of the sliding block (8). L-shaped plates (10) are slidably connected to the inner sides of the sliding grooves (9). The L-shaped plates (10) are ) side walls are penetrated by straight rods (11) for sliding connection, the side of the straight rods (11) close to each other is fixedly connected to a bent plate (12), the bottom end of the side wall of the bent plate (12) is penetrated by a fixed block (13) for sliding connection, both ends of the inner side of the fixed frame (5) are provided with lower straight grooves (14), the tops of both ends of the lower straight groove (14) are respectively provided with vertical grooves (15) and oblique grooves (16), and an upper straight groove (17) is provided between the tops of the vertical grooves (15) and the oblique grooves (16), the ends of the straight rods (11) are movably connected to the inner side of the lower straight grooves (14), the inner side of the fixed frame (5) is provided with a driving mechanism, and the inner side of the fixed frame (5) is fixedly connected to a rear plate (23).

2. A positioning tool for machining a high-temperature axial flow regulating valve according to claim 1, characterized in that: An upper spring (18) is fixedly connected between the curved plate (12) and the side wall of the L-shaped plate (10); the end of the straight rod (11) is set to a smooth arc surface; an upper clamping groove (37) is provided at the bottom of the inclined groove (16); and the connection between the upper clamping groove (37) and the inclined groove (16) is inclined; a lower clamping groove (19) is provided inside the lower straight groove (14) and close to one end of the vertical groove (15); and the connection between the lower clamping groove (19) and the lower straight groove (14) is inclined; a pair of return springs (26) are fixedly connected between the inner side of the slide groove (9) and the top of the L-shaped plate (10); and a pair of connecting plates (27) are fixedly connected between the outer walls of the fixed frame (5) and the outer wall of the conveying platform (3).

3. The positioning tool for machining a high-temperature axial flow regulating valve according to claim 1, characterized in that: The fixed block (13) is arranged inclined on one side, and the inclined surface of the fixed block (13) is arranged on the side close to the conveyor line (4). A baffle (20) is fixedly connected to the top of the conveyor platform (3) and above the conveyor line (4). A lower spring (21) is fixedly connected between the side wall of the fixed block (13) and the side wall of the bending plate (12).

4. The positioning tool for machining a high-temperature axial flow regulating valve according to claim 1, characterized in that: The driving mechanism comprises a driving motor (22), the driving motor (22) being fixedly connected to a side wall of the fixing frame (5), a threaded rod (24) being rotatably connected between the side wall of the rear plate (23) and the inner side of the fixing frame (5), an output end of the driving motor (22) passing through the side wall of the fixing frame (5) and being fixedly connected to the threaded rod (24), and the threaded rod (24) passing through and being threadedly connected to the inner side wall of the sliding block (8).

5. A positioning tool for machining a high-temperature axial flow regulating valve according to claim 4, characterized in that: A pair of guide rods (25) are fixedly connected between the side wall of the rear plate (23) and the inner side of the fixed frame (5), and the guide rods (25) are arranged to penetrate the inner side wall of the sliding block (8).

6. The positioning tool for machining a high-temperature axial flow regulating valve according to claim 1, characterized in that: The flip clamping mechanism comprises a lower V-shaped seat (29) and an electric telescopic cylinder (28), wherein the electric telescopic cylinder (28) is fixedly connected to the top of the fixed frame (5), the output end of the electric telescopic cylinder (28) passes through the top of the fixed frame (5) and is fixedly connected to a top block (30), the side walls of the rear plate (23) and located on both sides of the top block (30) are rotatably connected to guide rollers (31), the lower V-shaped seat (29) is arranged on the inner side of the groove (7), and both ends of the inner side of the groove (7) are fixed A fan-shaped plate (32) is connected, and the side walls of the fan-shaped plate (32) are each provided with a fan-shaped groove (33), and the inner side of the fan-shaped groove (33) is slidably connected to an arc block (34), and the arc block (34) is fixedly connected to the side wall of the lower V-shaped seat (29) on one side thereof, and the side wall of the arc block (34) is fixedly connected to a pull rope (35), and the other end of the pull rope (35) passes through the top of the fan-shaped plate (32) and the outer wall of the guide roller (31) and is respectively fixedly connected to the two sides of the top block (30).

7. A positioning tool for machining a high-temperature axial flow regulating valve according to claim 6, characterized in that: The top block (30) is made of a rubber material having elasticity, and the pull rope (35) is made of a fiber material having a certain elasticity.

8. The positioning tool for machining a high-temperature axial flow regulating valve according to claim 6, characterized in that: An arc-shaped spring (36) is fixedly connected between the inner side of the fan-shaped groove (33) and the side wall of the arc-shaped block (34), and a chip discharge opening (38) is obliquely opened at the bottom of the groove (7).

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