A three-way valve welding positioning device and positioning method

Abstract

The present invention is applicable to the technical field of three-way valve manufacturing, and provides a positioning device and positioning method for three-way valve welding, including a workbench, on which a material drop hole is arranged, and further including: mounting block 1 and mounting block 2, and supply hopper 1 and supply hopper 2 fixedly connected to the upper end of the workbench, the supply hopper 1 and supply hopper 2 are respectively located on both sides of the material drop hole, and the supply hopper 1 and supply hopper 2 are respectively used for the supply side pipeline and the main pipeline; the mounting block 1 is rotatably connected with a rotating hook block, the rotating hook block is provided with a placement groove, and the mounting block 1 and the rotating hook block are both located below the supply hopper 2; the mounting block 2 is movably connected with a positioning shaft, and the mounting block 2 is fixedly connected with a push block at one end close to the rotating hook block. The present invention can realize the stopping feeding, positioning fixing and unloading of the three-way valve welding parts, with a high degree of automation and high positioning accuracy of the three-way valve, thereby improving the welding efficiency of the three-way valve.

Description

Technical Field

[0001] The invention belongs to the technical field of three-way valve manufacturing, and in particular relates to a positioning device and a positioning method for three-way valve welding. Background Art

[0002] The three-way valve is a control component in the fluid delivery system, with functions such as cut-off, regulation, diversion, backflow prevention, pressure stabilization, diversion or overflow. The three-way valve has three inlet and outlet ports, generally two of which are on the same axis, and the other port is set vertically with the first two ports.

[0003] In the manufacturing process of the three-way valve, three interconnected holes can be punched on an integral workpiece by a punching device, or it can be manufactured by welding. When the three-way valve is manufactured by the welding method, two welding parts are included, namely the main pipe and the side pipe. The side wall of the main pipe is provided with a circular welding port, and one end of the side pipe is provided with a contour that communicates with the side wall of the main pipe. The side pipe is welded to the welding port of the main pipe, so that the three inlet and outlet ports of the three-way valve can be connected to each other.

[0004] Before welding the existing three-way valve, a positioning fixture is used to fix the main pipeline and the side pipeline of the three-way valve. The worker fits the welding end of the side pipeline on the side wall of the main pipeline to make the axis of the welding port of the side pipeline coincide with that of the main pipeline, and then fixes it with a fixture. After welding, the welded three-way valve can be removed. Manual control of the axis coincidence adjustment of the welding port of the side pipeline and the main pipeline is relatively laborious and the accuracy is not high. In addition, when welding three-way valves in large quantities, the three-way valves are manually loaded and unloaded, resulting in high work intensity. In summary, the existing positioning device for welding three-way valves is not easy to use. Summary of the invention

[0005] The purpose of the embodiments of the present invention is to provide a three-way valve welding positioning device and a positioning method, aiming to solve the problems of low positioning accuracy and high manual loading and unloading work intensity of the existing three-way valve welding positioning device.

[0006] The present invention is achieved in this way. A positioning device for three-way valve welding comprises a workbench, on which a blanking hole is provided, and further comprises: a mounting block 1 and a mounting block 2, and a feed hopper 1 and a feed hopper 2 fixedly connected to the upper end of the workbench, the feed hopper 1 and the feed hopper 2 are respectively located on both sides of the blanking hole, and the feed hopper 1 and the feed hopper 2 are respectively used for the supply side pipeline and the main pipeline; a rotating hook block is rotatably connected to the mounting block 1, a placing groove is provided on the rotating hook block, and the mounting block 1 and the rotating hook block are both located below the feed hopper 2; a positioning shaft is movably connected to the mounting block 2, a push block is fixedly connected to one end of the mounting block 2 close to the rotating hook block, a telescopic rod is connected to one end of the positioning shaft away from the mounting block 1, and the end of the telescopic rod is fixedly connected to the side wall of the mounting block 2. The telescopic rod is sleeved with a tension spring, and the two ends of the tension spring are respectively fixedly connected to the two ends of the telescopic rod; the other end of the positioning shaft is telescopically connected with an end push shaft, and the end of the positioning shaft side wall close to the end push shaft is evenly arranged with four sliding grooves, and the four sliding grooves are slidably connected with correction plates; a synchronous telescopic mechanism is provided on the positioning shaft, and when the end push shaft is retracted into the positioning shaft, the synchronous telescopic mechanism drives the four correction plates to synchronously extend from the side wall of the positioning shaft; a moving mechanism 1 and a moving mechanism 2 are provided at the upper end of the workbench, and the moving mechanism 1 is used to drive the mounting block 1 to move toward or away from the mounting block 2, and the moving mechanism 2 is used to drive the mounting block 2 to move toward or away from the mounting block 1; a rotating mechanism is provided on the workbench, and the rotating mechanism is used to drive the rotating hook block and the positioning shaft to rotate.

[0007] A further technical solution is that a bottom opening is provided at the bottom of the feeding hopper one, side wall openings are provided on opposite sides of the feeding hopper one, the side wall openings are connected with the bottom opening, an outer arc guide wall is provided on the side of the feeding hopper one close to the feeding hopper two, and an inner arc guide protrusion is provided on the side wall of the feeding hopper two close to the feeding hopper one.

[0008] A further technical solution is that the moving mechanism includes a guide rail and a vertical plate fixedly connected on the workbench, a slider is slidably connected to the guide rail, and the mounting block is fixed to the upper end of the slider; a screw rod is rotatably connected to the vertical plate, the screw rod is threadedly connected to the mounting block, a motor is fixedly connected to the vertical plate, and the rotating end of the motor is fixedly connected to the screw rod.

[0009] A further technical solution is that the second moving mechanism includes a guide rail 2 and a vertical plate 2 fixedly connected on the workbench, the guide rail 2 is slidably connected with a slider 2, and the mounting block 2 is fixed to the upper end of the slider 2; the vertical plate 2 is rotatably connected with a screw rod 2, the screw rod 2 is threadedly connected to the mounting block 2, the vertical plate 2 is fixedly connected with a motor 2, and the rotating end of the motor 2 is fixedly connected to the screw rod 2.

[0010] A further technical solution is that the rotating mechanism includes a sliding rod 1 that is slidably connected to one end of the positioning shaft away from the rotating hook block, and a sliding rod 2 that is slidably connected to one end of the rotating hook block away from the positioning shaft, the sliding rod 1 and the sliding rod 2 are respectively rotatably connected to the vertical plate 2 and the vertical plate 1; the lower end of the workbench is rotatably connected to a rotating shaft, the lower end of the workbench is fixedly connected to a motor 3, and the rotating end of the motor 3 is fixedly connected to the rotating shaft; two synchronous pulleys 2 are fixedly connected to the rotating shaft, the sliding rod 1 and the sliding rod 2 are both fixedly connected to a synchronous pulley 1, and the synchronous pulley 1 is connected to the synchronous pulley 2 through a synchronous belt drive.

[0011] A further technical solution is that the synchronous telescopic mechanism includes a slide groove arranged at one end of the positioning shaft near the rotating hook block, and the end push shaft is slidably connected in the slide groove; the slide groove is provided with a spring, and the spring is located at the end of the end push shaft away from the rotating hook block; the correction plate is provided with an installation groove, and two connecting rods are rotatably connected in the installation groove, and the ends of the two connecting rods are rotatably connected to the end push shaft.

[0012] A three-way valve welding positioning method, based on the above-mentioned three-way valve welding positioning device, comprises the following steps:

[0013] Step 1: Place the side pipe and main pipe of the three-way valve in the first and second feeding hoppers respectively, and the main pipe at the bottom of the second feeding hopper falls into the rotating hook block;

[0014] Step 2: The moving mechanism 1 drives the mounting block 1 to move toward the mounting block 2, and the mounting block 1 drives the rotating hook block to move so that the rotating hook block is located above the blanking hole;

[0015] Step 3: The moving mechanism 2 drives the mounting block 2 to move toward the mounting block 1. The mounting block 2 drives the positioning shaft to move through the tension spring, so that the positioning shaft is inserted into the side pipe of the lowest layer of the feeding hopper 1. The mounting block 2 drives the side pipe of the lowest layer of the feeding hopper 1 to move through the push block;

[0016] Step 4: The end push shaft and the correction plate on the positioning shaft are first inserted into the welding port of the main pipe. After the end push shaft contacts the inner wall of the main pipe, the end push shaft is pushed into the positioning shaft;

[0017] Step 5: When the end push shaft is retracted into the positioning shaft, the synchronous telescopic mechanism drives the four correction plates to synchronously extend from the side wall of the positioning shaft, and the side walls of the four correction plates abut against the welding port of the main pipe, thereby making the welding port of the main pipe coaxial with the positioning shaft, and the four correction plates support the inner wall of the side pipe, so that the side pipe is coaxial with the positioning shaft;

[0018] Step 6: After the positioning shaft cannot move any further, the mounting block 2 overcomes the elastic force of the tension spring and continues to move. The mounting block 2 continues to push the side pipe to move through the push block, so that the side pipe rests against the side wall of the main pipe, completing the main pipe and side pipe positioning of the three-way valve.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Place the side pipe and main pipe of the three-way valve in the first and second feeding hoppers respectively to realize automatic supply of the side pipe and the main pipe;

[0021] 2. The end push shaft and the correction plate on the positioning shaft are first inserted into the welding port of the main pipe, and the side walls of the four correction plates are against the welding port of the main pipe, so that the welding port of the main pipe is coaxial with the positioning shaft, and the four correction plates support the inner wall of the side pipe, so that the side pipe is coaxial with the positioning shaft. The second installation block pushes the side pipe to move through the push block, so that the side pipe is against the side wall of the main pipe, and the welding port of the main pipe is coaxial with the side pipe. Then, with the cooperation of the push block and the rotating hook block, the main pipe and the side pipe of the three-way valve are fixed together, and the positioning of the main pipe and the side pipe of the three-way valve is completed;

[0022] 3. The rotating mechanism drives the rotating hook block and the positioning shaft to rotate, and the rotating hook block and the positioning shaft drive the main pipeline and the side pipeline of the three-way valve to rotate, so as to facilitate welding of the connection between the rotating hook block and the positioning shaft;

[0023] 4. The second moving mechanism first drives the second mounting block to move in the opposite direction, and the positioning shaft and the end push shaft are moved out of the three-way valve after welding, and the clamping force of the three-way valve disappears, so that the welded three-way valve falls from the placement groove of the rotating hook block, and the automatic unloading of the three-way valve is completed. The present invention can realize the automatic loading, positioning, fixing and unloading of the three-way valve welding parts, with a high degree of automation and high positioning accuracy of the three-way valve, thereby improving the welding efficiency of the three-way valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of a three-way valve welding positioning device provided by the present invention;

[0025] Figure 2 The present invention provides Figure 1 The schematic diagram of the structure after removing the feeding hopper 1 and the feeding hopper 2;

[0026] Figure 3 The present invention provides Figure 2 Schematic diagram of the structure when looking up at the tilt angle;

[0027] Figure 4 The present invention provides Figure 1 The structural diagram of the middle feeding hopper 1;

[0028] Figure 5 The present invention provides Figure 1 The structural diagram of the middle feeding hopper 2;

[0029] Figure 6 The present invention provides Figure 1 A schematic diagram of the structure of the moving mechanism 1;

[0030] Figure 7 The present invention provides Figure 6 Schematic diagram of the internal structure of the middle inner arc guide protrusion;

[0031] Figure 8 The present invention provides Figure 1 A schematic diagram of the structure of the moving mechanism 2;

[0032] Fig. 9 The present invention provides Figure 8 Structural diagram of the central positioning axis;

[0033] Fig.10 The present invention provides Fig. 9 Schematic diagram of the internal structure of the central positioning shaft;

[0034] Fig.11 The present invention provides Fig.10 Schematic diagram of the internal structure of the middle correction plate.

[0035] In the attached drawings: workbench 101, drop hole 102, feed hopper 1 103, bottom opening 1031, side wall opening 1032, outer arc guide wall 1033, feed hopper 2 104, inner arc guide protrusion 1041, mounting block 1 105, rotating hook block 106, placement slot 107, mounting block 2 108, positioning shaft 109, push block 110, end push shaft 111, sliding slot 112, correction plate 113, telescopic rod 114, tension spring 115, moving mechanism 1 2, guide rail 1 201, Slider 1-202, vertical plate 1-203, screw rod 1-204, motor 1-205, moving mechanism 2-3, guide rail 2-301, slider 2-302, vertical plate 2-303, screw rod 2-304, motor 2-305, rotating mechanism 4, sliding rod 1-401, sliding rod 2-402, synchronous pulley 1-403, synchronous belt 404, rotating shaft 405, synchronous pulley 2-406, motor 3-407, synchronous telescopic mechanism 5, slide groove 501, spring 502, mounting groove 503, connecting rod 504. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown, a three-way valve welding positioning device provided by an embodiment of the present invention includes a workbench 101, on which a material drop hole 102 is provided, and further includes: a mounting block 105 and a mounting block 108, and a feed hopper 103 and a feed hopper 104 fixedly connected to the upper end of the workbench 101, wherein the feed hopper 103 and the feed hopper 104 are respectively located on both sides of the material drop hole 102, and the feed hopper 103 and the feed hopper 104 are respectively used for supplying a side pipeline and a main pipeline; the mounting block 105 and the mounting block 108 are fixedly connected to the upper end of the workbench 101, and the feed hopper 103 and the feed hopper 104 are respectively located on both sides of the material drop hole 102, and the feed hopper 103 and the feed hopper 104 are respectively used for supplying a side pipeline and a main pipeline; The first block 105 is rotatably connected with a rotating hook block 106, and the rotating hook block 106 is provided with a placement slot 107. The first mounting block 105 and the rotating hook block 106 are both located below the second feeding hopper 104; the second mounting block 108 is movably connected with a positioning shaft 109, and the end of the second mounting block 108 close to the rotating hook block 106 is fixedly connected with a push block 110, and the end of the positioning shaft 109 away from the first mounting block 105 is connected with a telescopic rod 114, and the end of the telescopic rod 114 is fixedly connected to the second mounting block 108. 08 side wall, the telescopic rod 114 is sleeved with a tension spring 115, and the two ends of the tension spring 115 are respectively fixedly connected to the two ends of the telescopic rod 114; the other end of the positioning shaft 109 is telescopically connected to the end push shaft 111, and the end of the side wall of the positioning shaft 109 close to the end push shaft 111 is evenly annularly arranged with four sliding grooves 112, and the four sliding grooves 112 are slidably connected with correction plates 113; the positioning shaft 109 is provided with a synchronous telescopic mechanism 5, and the end push shaft 111 is retracted into the positioning shaft 10 9, the synchronous telescopic mechanism 5 drives the four correction plates 113 to extend synchronously from the side wall of the positioning shaft 109; the upper end of the workbench 101 is provided with a moving mechanism 2 and a moving mechanism 3, the moving mechanism 2 is used to drive the mounting block 105 to move toward or away from the mounting block 108, and the moving mechanism 23 is used to drive the mounting block 108 to move toward or away from the mounting block 105; the workbench 101 is provided with a rotating mechanism 4, and the rotating mechanism 4 is used to drive the rotating hook block 106 and the positioning shaft 109 to rotate.

[0039] In the embodiment of the present invention, the side pipe and the main pipe of the three-way valve are placed in the feeding hopper 103 and the feeding hopper 2 104 respectively, the main pipe at the bottom of the feeding hopper 2 104 falls into the rotating hook block 106, the moving mechanism 1 2 drives the mounting block 105 to move toward the mounting block 2 108, the mounting block 105 drives the rotating hook block 106 to move, so that the rotating hook block 106 is located above the drop hole 102, the moving mechanism 2 3 drives the mounting block 2 108 to move toward the mounting block 105, the mounting block 2 108 drives the positioning shaft 109 to move through the tension spring 115, so that the positioning shaft 109 is inserted into the side pipe at the bottom of the feeding hopper 103, and the mounting block 2 108 drives the positioning shaft 109 to move. The push block 110 drives the side pipe at the bottom of the feed hopper 103 to move, so that the side pipe is pushed out of the feed hopper 103. The end push shaft 111 and the correction plate 113 on the positioning shaft 109 are first inserted into the welding port of the main pipe. After the end push shaft 111 contacts the inner wall of the main pipe, the end push shaft 111 is pushed into the positioning shaft 109. When the end push shaft 111 is retracted into the positioning shaft 109, the synchronous telescopic mechanism 5 drives the four correction plates 113 to synchronously extend from the side wall of the positioning shaft 109. The side walls of the four correction plates 113 are against the welding port of the main pipe, so that the welding port of the main pipe is coaxial with the positioning shaft 109, and the four correction plates 113 are opposite to the side pipe. The inner wall of the channel is supported to make the side pipeline coaxial with the positioning shaft 109. Until the positioning shaft 109 can no longer move, the mounting block 108 overcomes the elastic force of the tension spring 115 and continues to move. The mounting block 108 continues to push the side pipeline to move through the push block 110, so that the side pipeline is against the side wall of the main pipeline. Then, with the cooperation of the push block 110 and the rotating hook block 106, the main pipeline and the side pipeline of the three-way valve are fixed together, and the positioning of the main pipeline and the side pipeline of the three-way valve is completed. At this time, the connection between the main pipeline and the side pipeline of the three-way valve can be welded, and the rotating mechanism 4 drives the rotating hook block 106 and the positioning shaft 109 to rotate, and the rotating hook block 106 and The positioning shaft 109 drives the main pipeline and the side pipeline of the three-way valve to rotate, thereby facilitating the welding of the connection between the rotating hook block 106 and the positioning shaft 109. After the welding is completed, the moving mechanism 2 3 first drives the mounting block 2 108 to move in the opposite direction, and the positioning shaft 109 and the end push shaft 111 are moved out of the welded three-way valve, and the clamping force of the three-way valve disappears, so that the welded three-way valve falls from the placement groove 107 of the rotating hook block 106, completing the automatic unloading of the three-way valve. The present invention can realize the automatic loading, positioning, fixing and unloading of the three-way valve welding parts, with a high degree of automation and high positioning accuracy of the three-way valve, thereby improving the welding efficiency of the three-way valve.

[0040] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, as a preferred embodiment of the present invention, the bottom of the feeding hopper 103 is provided with a bottom opening 1031, and the two opposite sides of the feeding hopper 103 are provided with side wall openings 1032, and the side wall openings 1032 are connected with the bottom opening 1031, and the side of the feeding hopper 1 103 close to the feeding hopper 2 104 is provided with an outer arc guide wall 1033, and the side wall of the feeding hopper 2 104 close to the feeding hopper 1 103 is provided with an inner arc guide protrusion 1041.

[0041] In the embodiment of the present invention, the side wall openings 1032 on the opposite sides of the supply hopper 103 can facilitate the push-out of the lowermost side pipe of the supply hopper 103, and the bottom opening 1031 at the bottom of the supply hopper 103 can avoid the movement of the mounting block 2 108. The outer arc guide wall 1033 of the supply hopper 103 guides the side pipe, and the inner arc guide protrusion 1041 on the supply hopper 2 104 is stuck at the welding port of the main pipe to guide the main pipe so that the welding port of the main pipe faces the supply hopper 103, which is convenient for the subsequent positioning shaft 109 to be inserted into the welding port of the main pipe.

[0042] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, as a preferred embodiment of the present invention, the moving mechanism 2 includes a guide rail 201 and a vertical plate 203 fixedly connected to the workbench 101, the guide rail 201 is slidably connected with a slider 202, and the mounting block 105 is fixed to the upper end of the slider 202; the vertical plate 203 is rotatably connected with a screw rod 204, the screw rod 204 is threadedly connected to the mounting block 105, the vertical plate 203 is fixedly connected with a motor 205, and the rotating end of the motor 205 is fixedly connected to the screw rod 204.

[0043] In the embodiment of the present invention, under the guiding action of the guide rail 201, the motor 205 drives the screw rod 204 to rotate, the screw rod 204 drives the slider 202 to move through thread transmission, the slider 202 drives the mounting block 105 to move, and the mounting block 105 drives the rotating hook block 106 to move.

[0044] like Figure 1 , Figure 2 , Figure 8 and Fig. 9As shown, as a preferred embodiment of the present invention, the moving mechanism 2 3 includes a guide rail 2 301 and a vertical plate 2 303 fixedly connected to the workbench 101, the guide rail 2 301 is slidably connected with a slider 2 302, and the mounting block 2 108 is fixed to the upper end of the slider 2 302; the vertical plate 2 303 is rotatably connected with a screw rod 2 304, the screw rod 2 304 is threadedly connected to the mounting block 2 108, the vertical plate 2 303 is fixedly connected with a motor 2 305, and the rotating end of the motor 2 305 is fixedly connected to the screw rod 2 304.

[0045] In the embodiment of the present invention, under the guiding action of the guide rail 301, the motor 305 drives the screw rod 304 to rotate, the screw rod 304 drives the slider 302 to move through threaded transmission, and the slider 302 drives the positioning shaft 109 to move through the tension spring 115. When the positioning shaft 109 cannot move, the mounting block 108 overcomes the elastic force of the tension spring 115 and moves relative to the positioning shaft 109.

[0046] like Figure 3 , Figure 7 and Figure 8 As shown, as a preferred embodiment of the present invention, the rotating mechanism 4 includes a sliding rod 401 slidably connected to one end of the positioning shaft 109 away from the rotating hook block 106, and a sliding rod 402 slidably connected to one end of the rotating hook block 106 away from the positioning shaft 109, the sliding rod 401 and the sliding rod 402 are rotatably connected to the vertical plate 2 303 and the vertical plate 1 203 respectively; the lower end of the workbench 101 is rotatably connected to a rotating shaft 405, the lower end of the workbench 101 is fixedly connected to a motor 3 407, and the rotating end of the motor 3 407 is fixedly connected to the rotating shaft 405; two synchronous pulleys 2 406 are fixedly connected to the rotating shaft 405, the sliding rod 1 401 and the sliding rod 2 402 are both fixedly connected to a synchronous pulley 1 403, and the synchronous pulley 1 403 and the synchronous pulley 2 406 are connected through a synchronous belt 404.

[0047] In the embodiment of the present invention, the motor three 407 drives the rotating shaft 405 to rotate, and the rotating shaft 405 drives the sliding rod one 401 and the sliding rod two 402 to rotate synchronously through two sets of synchronous pulley one 403, synchronous belt 404 and synchronous pulley two 406. The sliding rod one 401 drives the rotating hook block 106 to rotate, and the sliding rod two 402 drives the positioning shaft 109 to rotate.

[0048] like Figure 8-Figure 11As shown, as a preferred embodiment of the present invention, the synchronous telescopic mechanism 5 includes a slide groove 501 arranged at one end of the positioning shaft 109 close to the rotating hook block 106, and the end push shaft 111 is slidably connected in the slide groove 501; the slide groove 501 is provided with a spring 502, and the spring 502 is located at the end of the end push shaft 111 away from the rotating hook block 106, and the correction plate 113 is provided with a mounting groove 503, and two connecting rods 504 are rotatably connected in the mounting groove 503, and the ends of the two connecting rods 504 are rotatably connected to the end push shaft 111.

[0049] In the embodiment of the present invention, the positioning shaft 109 drives the end push shaft 111 to extend into the main pipe from the welding hole. When the end push shaft 111 abuts against the inner wall of the main pipe, the end push shaft 111 cannot move further. At this time, the positioning shaft 109 overcomes the elastic force of the spring 502 and continues to move, so that the end push shaft 111 is retracted into the positioning shaft 109. Under the guidance of the sliding groove 112, the end push shaft 111 pushes the correction plate 113 out of the side wall of the positioning shaft 109 through the connecting rod 504, thereby causing the four correction plates 113 to be synchronously moved from the positioning shaft 109. 9 The side wall extends out, and the four correction plates 113 support the welding hole on the side wall of the main pipe, so that the welding hole of the side wall of the main pipe is coaxial with the positioning shaft 109, and the four correction plates 113 support the inner wall of the side pipe, so that the side pipe is coaxial with the positioning shaft 109, and the welding hole of the side pipe is coaxial with the main pipe. After the positioning shaft 109 can no longer move, the mounting block 108 overcomes the elastic force of the tension spring 115 and drives the push block 110 to continue to move, and the push block 110 pushes the side pipe to move, so that the side pipe fits on the side wall of the main pipe.

[0050] In the above embodiment of the present invention, a positioning device for welding a three-way valve is provided, wherein the side pipe and the main pipe of the three-way valve are respectively placed in the feed hopper 103 and the feed hopper 2 104, and the main pipe at the bottom of the feed hopper 2 104 falls into the rotating hook block 106. Under the guiding action of the guide rail 1 201, the motor 1 205 drives the screw rod 1 204 to rotate, and the screw rod 1 204 drives the slider 1 202 to move through a threaded transmission, and the slider 1 202 drives the mounting block 105 to move, and the mounting block 105 drives the rotating hook block 106 to move, so that the rotating hook block 106 is located above the drop hole 102. Under the guiding action of the guide rail 2 301, the motor 2 305 drives the screw rod 2 304 to rotate, and the screw rod 2 304 drives the rotating hook block 106 through a threaded transmission. The slider 302 is driven to move in this way. The slider 302 drives the positioning shaft 109 to move through the tension spring 115, so that the positioning shaft 109 is inserted into the side pipe of the lowest layer of the feeding hopper 103. The mounting block 108 drives the side pipe of the lowest layer of the feeding hopper 103 to move through the push block 110, so that the side pipe is pushed out of the feeding hopper 103. The end push shaft 111 and the correction plate 113 on the positioning shaft 109 are first inserted into the welding port of the main pipe. After the end push shaft 111 contacts the inner wall of the main pipe, the end push shaft 111 is pushed into the positioning shaft 109, and the end push shaft 111 cannot continue to move. At this time, the positioning shaft 109 overcomes the elastic force of the spring 502 and continues to move, so that the end push shaft 111 is retracted into the positioning shaft 109, and the guide groove 112 is used to guide the end push shaft 111 to move the end push shaft 111. Under the action of the pull-in action, the end push shaft 111 pushes the correction plate 113 out of the side wall of the positioning shaft 109 through the connecting rod 504, so that the four correction plates 113 are synchronously extended from the side wall of the positioning shaft 109, and the four correction plates 113 support the welding holes on the side wall of the main pipeline, so that the welding holes on the side wall of the main pipeline are coaxial with the positioning shaft 109, and the four correction plates 113 support the inner wall of the side pipeline, so that the side pipeline is coaxial with the positioning shaft 109, and the welding holes of the side pipeline are coaxial with the main pipeline. After the positioning shaft 109 can no longer move, the installation block 108 overcomes the elastic force of the tension spring 115 and drives the push block 110 to continue to move, and the push block 110 pushes the side pipeline to move, so that the side pipeline fits on the side wall of the main pipeline, completing the main pipeline of the three-way valve. and the side pipeline, at this time, the connection between the main pipeline and the side pipeline of the three-way valve can be welded, the motor three 407 drives the rotating shaft 405 to rotate, the rotating shaft 405 drives the sliding rod 1 401 and the sliding rod 2 402 to rotate synchronously through two sets of synchronous pulleys 1 403, synchronous belts 404 and synchronous pulleys 2 406, the sliding rod 1 401 drives the rotating hook block 106 to rotate, the sliding rod 2 402 drives the positioning shaft 109 to rotate, the rotating hook block 106 and the positioning shaft 109 drive the main pipeline and the side pipeline of the three-way valve to rotate, so as to facilitate the welding of the connection between the rotating hook block 106 and the positioning shaft 109, and after the welding is completed, the rotating hook block 106 is placed downward, the motor two 305 is reversed, and the installation block two 108 is driven to move in the opposite direction first,The positioning shaft 109 and the end push shaft 111 are moved out of the three-way valve after welding, and the clamping force of the three-way valve disappears, so that the three-way valve after welding falls from the placement groove 107 of the rotating hook block 106, and the automatic unloading of the three-way valve is completed. The present invention can realize the automatic loading, positioning, fixing and unloading of the three-way valve welding parts, with a high degree of automation and high positioning accuracy of the three-way valve, thereby improving the welding efficiency of the three-way valve.

[0051] A three-way valve welding positioning method, based on the above-mentioned three-way valve welding positioning device, comprises the following steps:

[0052] Step 1: Place the side pipe and main pipe of the three-way valve in the first feeding hopper 103 and the second feeding hopper 104 respectively, and the main pipe at the bottom of the second feeding hopper 104 falls into the rotating hook block 106;

[0053] Step 2, the moving mechanism 1 2 drives the mounting block 105 to move toward the mounting block 2 108, and the mounting block 105 drives the rotating hook block 106 to move, so that the rotating hook block 106 is located above the blanking hole 102;

[0054] Step 3, the moving mechanism 23 drives the mounting block 2 108 to move toward the mounting block 105, and the mounting block 2 108 drives the positioning shaft 109 to move through the tension spring 115, so that the positioning shaft 109 is inserted into the side pipe of the lowest layer of the feeding hopper 103, and the mounting block 2 108 drives the side pipe of the lowest layer of the feeding hopper 103 to move through the push block 110;

[0055] Step 4: The end push shaft 111 and the correction plate 113 on the positioning shaft 109 are first inserted into the welding port of the main pipe. After the end push shaft 111 contacts the inner wall of the main pipe, the end push shaft 111 is pushed into the positioning shaft 109;

[0056] Step 5: When the end push shaft 111 is retracted into the positioning shaft 109, the synchronous telescopic mechanism 5 drives the four correction plates 113 to synchronously extend from the side wall of the positioning shaft 109, and the side walls of the four correction plates 113 abut against the welding port of the main pipe, thereby making the welding port of the main pipe coaxial with the positioning shaft 109, and the four correction plates 113 support the inner wall of the side pipe, so that the side pipe is coaxial with the positioning shaft 109;

[0057] Step 6: until the positioning shaft 109 can no longer move, the mounting block 108 overcomes the elastic force of the tension spring 115 and continues to move. The mounting block 108 continues to push the side pipe to move through the push block 110, so that the side pipe rests on the side wall of the main pipe, completing the main pipe and side pipe positioning of the three-way valve.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-way valve welding positioning device, comprising a workbench (101), wherein the workbench (101) is provided with a blanking hole (102), characterized in that: Also includes: Mounting block 1 (105) and mounting block 2 (108), and supply hopper 1 (103) and supply hopper 2 (104) fixedly connected to the upper end of the workbench (101), wherein the supply hopper 1 (103) and supply hopper 2 (104) are respectively located on both sides of the drop hole (102), and the supply hopper 1 (103) and supply hopper 2 (104) are respectively used for supplying the side pipeline and the main pipeline; The first mounting block (105) is rotatably connected to a rotating hook block (106), and the rotating hook block (106) is provided with a placement groove (107). The first mounting block (105) and the rotating hook block (106) are both located below the second feeding hopper (104); The second mounting block (108) is movably connected with a positioning shaft (109); one end of the second mounting block (108) close to the rotating hook block (106) is fixedly connected with a push block (110); the end of the positioning shaft (109) away from the first mounting block (105) is connected with a telescopic rod (114); the end of the telescopic rod (114) is fixedly connected to the side wall of the second mounting block (108); a tension spring (115) is sleeved on the telescopic rod (114); and the two ends of the tension spring (115) are respectively fixedly connected to the two ends of the telescopic rod (114); The other end of the positioning shaft (109) is telescopically connected to an end push shaft (111), and four sliding grooves (112) are evenly arranged in an annular shape on one end of the side wall of the positioning shaft (109) close to the end push shaft (111), and correction plates (113) are slidably connected in the four sliding grooves (112); The positioning shaft (109) is provided with a synchronous telescopic mechanism (5), and when the end push shaft (111) is retracted into the positioning shaft (109), the synchronous telescopic mechanism (5) drives the four correction plates (113) to synchronously extend from the side wall of the positioning shaft (109); The upper end of the workbench (101) is provided with a moving mechanism 1 (2) and a moving mechanism 2 (3), wherein the moving mechanism 1 (2) is used to drive the mounting block 1 (105) to move toward or away from the mounting block 2 (108), and the moving mechanism 2 (3) is used to drive the mounting block 2 (108) to move toward or away from the mounting block 1 (105); The workbench (101) is provided with a rotating mechanism (4), and the rotating mechanism (4) is used to drive the rotating hook block (106) and the positioning shaft (109) to rotate; The moving mechanism 1 (2) comprises a guide rail 1 (201) and a vertical plate 1 (203) fixedly connected to the workbench (101), a slider 1 (202) being slidably connected to the guide rail 1 (201), and the mounting block 1 (105) being fixed to the upper end of the slider 1 (202); The vertical plate 1 (203) is rotatably connected to a screw rod 1 (204), the screw rod 1 (204) is threadedly connected to the mounting block 1 (105), the vertical plate 1 (203) is fixedly connected to a motor 1 (205), and the rotating end of the motor 1 (205) is fixedly connected to the screw rod 1 (204); The rotating mechanism (4) comprises a sliding rod 1 (401) slidably connected to one end of the positioning shaft (109) away from the rotating hook block (106), and a sliding rod 2 (402) slidably connected to one end of the rotating hook block (106) away from the positioning shaft (109), wherein the sliding rod 1 (401) and the sliding rod 2 (402) are rotatably connected to the vertical plate 2 (303) and the vertical plate 1 (203) respectively; The lower end of the workbench (101) is rotatably connected to a rotating shaft (405), the lower end of the workbench (101) is fixedly connected to a motor three (407), and the rotating end of the motor three (407) is fixedly connected to the rotating shaft (405); The rotating shaft (405) is fixedly connected to two synchronous pulleys (406), and the sliding rod (401) and the sliding rod (402) are both fixedly connected to synchronous pulleys (403). The synchronous pulleys (403) and the synchronous pulleys (406) are connected to each other through a synchronous belt (404).

2. The three-way valve welding positioning device according to claim 1, characterized in that: The bottom of the first feeding hopper (103) is provided with a bottom opening (1031), and opposite sides of the first feeding hopper (103) are provided with side wall openings (1032), and the side wall openings (1032) are connected to the bottom opening (1031); An outer arc guide wall (1033) is arranged on one side of the first feeding hopper (103) close to the second feeding hopper (104), and an inner arc guide protrusion (1041) is arranged on the side wall of the second feeding hopper (104) close to the first feeding hopper (103).

3. The three-way valve welding positioning device according to claim 1, characterized in that: The second moving mechanism (3) comprises a second guide rail (301) and a second vertical plate (303) fixedly connected to the workbench (101); a second slider (302) is slidably connected to the second guide rail (301); and the second mounting block (108) is fixed to the upper end of the second slider (302); The second vertical plate (303) is rotatably connected to a second screw rod (304), the second screw rod (304) is threadedly connected to the second mounting block (108), the second vertical plate (303) is fixedly connected to a second motor (305), the rotating end of the second motor (305) is fixedly connected to the second screw rod (304).

4. The three-way valve welding positioning device according to claim 1, characterized in that: The synchronous telescopic mechanism (5) comprises a slide groove (501) arranged at one end of the positioning shaft (109) close to the rotating hook block (106), and the end push shaft (111) is slidably connected in the slide groove (501); The slide groove (501) is provided with a spring (502), and the spring (502) is located at one end of the end push shaft (111) away from the rotating hook block (106). The correction plate (113) is provided with a mounting groove (503), and two connecting rods (504) are rotatably connected in the mounting groove (503), and the ends of the two connecting rods (504) are rotatably connected to the end push shaft (111).

5. A three-way valve welding positioning method, based on the three-way valve welding positioning device according to any one of claims 1 to 4, characterized in that: The following steps are involved: Step 1: Place the side pipe and the main pipe of the three-way valve in the first feeding hopper (103) and the second feeding hopper (104) respectively, and the main pipe at the bottom of the second feeding hopper (104) falls into the rotating hook block (106); Step 2: The moving mechanism 1 (2) drives the mounting block 1 (105) to move toward the mounting block 2 (108), and the mounting block 1 (105) drives the rotating hook block (106) to move, so that the rotating hook block (106) is located above the blanking hole (102); Step 3: The moving mechanism 2 (3) drives the mounting block 2 (108) to move toward the mounting block 1 (105); the mounting block 2 (108) drives the positioning shaft (109) to move via the tension spring (115), so that the positioning shaft (109) is inserted into the side pipe at the bottom of the feeding hopper 1 (103); the mounting block 2 (108) drives the side pipe at the bottom of the feeding hopper 1 (103) to move via the push block (110); Step 4: The end push shaft (111) and the correction plate (113) on the positioning shaft (109) are first inserted into the welding port of the main pipe. After the end push shaft (111) contacts the inner wall of the main pipe, the end push shaft (111) is pushed into the positioning shaft (109); Step 5: When the end push shaft (111) is retracted into the positioning shaft (109), the synchronous telescopic mechanism (5) drives the four correction plates (113) to synchronously extend from the side wall of the positioning shaft (109), and the side walls of the four correction plates (113) abut against the welding port of the main pipe, thereby making the welding port of the main pipe coaxial with the positioning shaft (109), and the four correction plates (113) support the inner wall of the side pipe, so that the side pipe and the positioning shaft (109) are coaxial; Step 6: After the positioning shaft (109) cannot move any further, the second mounting block (108) overcomes the elastic force of the tension spring (115) and continues to move. The second mounting block (108) continues to push the side pipe to move through the push block (110), so that the side pipe abuts against the side wall of the main pipe, thereby completing the main pipe and side pipe positioning of the three-way valve.

Images