A special-shaped pipe positioning device and positioning method

Abstract

The present invention discloses a positioning device for a special-shaped pipe, and relates to the technical field of pipe processing. In the present application, the positioning device comprises: a receiving space is arranged inside a base body, the receiving space is provided with: a rotating mechanism for controlling the rotation of the device, an adjusting part is arranged on the surface of the base body, a placing part is arranged on one side of the adjusting part, a fixing part is arranged on one side of the placing part, the fixing part comprises: a sliding body connected to a rotating body, an adjusting part is arranged on one side of the fixing part, the adjusting part comprises: an adjusting block connected to the fixing part, an extruding part is arranged on one side of the adjusting part, the extruding part and the adjusting part are in a simultaneous motion state, the extruding part comprises: an extruding block connected to the adjusting block, and the extruding block is higher than the adjusting block. When the present invention fixes and clamps the special-shaped pipe, the fixing part is used to clamp the special-shaped pipe, and the different surfaces of the special-shaped pipe are adjusted by the adjusting part to maintain the stable clamping of the special-shaped pipe, thereby reducing the shaking of the pipe body during the processing of the special-shaped pipe and improving the processing accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of pipe processing, and in particular to a positioning device and a positioning method for a special-shaped pipe. Background Art

[0002] Special-shaped tubes are seamless steel tubes made of various special shapes by cold drawing. Special-shaped tubes can be distinguished according to the cross-section, and can be divided into seamless steel tube special-shaped tubes, aluminum alloy special-shaped tubes, and plastic special-shaped tubes according to the material. In the processing of special-shaped tubes, clamping devices are needed to clamp the special-shaped tubes to ensure the normal processing of special-shaped tubes.

[0003] However, the commonly used clamping devices have a small application range and a limited clamping area, and are unable to stably clamp the special-shaped tubes. In addition, the surfaces of special-shaped tube parts are not uniform, which makes it more likely that the clamping device will be inconvenient to clamp and the special-shaped tube will be unstable after clamping. When the tube body is manually processed, the tube body will shake, affecting the processing accuracy of the special-shaped tube, so a clamping device is needed. Summary of the invention

[0004] The purpose of the present invention is to provide a special-shaped tube positioning device, which is used to solve the problems in the prior art that the special-shaped tube cannot be stably clamped and fixed during processing, the fixing device cannot be used for different types of special-shaped tubes, and the tube body shakes during processing, affecting the grinding accuracy of the special-shaped tube.

[0005] To achieve the above-mentioned purpose, the embodiment of the present application adopts the following technical scheme: a positioning device, comprising: a base, a receiving space is arranged inside the base, the base is used to support the pipe and the positioning device, and the receiving space is provided with: a rotating mechanism, the rotating mechanism is used to control the rotation of the device, and the rotating mechanism rotates vertically; an adjusting part, the adjusting part is arranged on the surface of the base, the adjusting part is fixedly connected to the base, the adjusting part is used to support and adjust the position of the pipe, and the adjusting part is controlled by the rotating mechanism; a placing part, the placing part is arranged on one side of the adjusting part, the placing part is connected to the adjusting part, and the placing part and the adjusting part are arranged opposite to each other; a fixing part, the fixing part is arranged on one side of the placing part, the fixing part is connected to the placing part, the fixing part passes through the placing part, and the outer ring of the fixing part is the same size as the outer ring of the placing part, The fixing part comprises: a sliding body, which is connected to the rotating body; an adjusting part, which is arranged at one side of the fixing part and is connected to the fixing part, and is used to adjust and fix the pipe, and the adjusting part comprises: an adjusting block, which is connected to the fixing part, and the adjusting block moves in a vertical direction along the axis center of the placing part, and the surface of the adjusting block fixes the pipe; an extruding part, which is arranged at one side of the adjusting part and is connected to the adjusting part, and one end of the extruding part is lower than one end of the adjusting part, and the extruding part and the adjusting part are in a simultaneous moving state, and the extruding part is used to preliminarily position the pipe, and the extruding part comprises: an extruding block, which is connected to the adjusting block, and the extruding block is higher than the adjusting block, and the extruding block first acts on the surface of the pipe and then the adjusting block acts on the surface of the pipe.

[0006] In the above technical scheme, the embodiment of the present application is installed by combining the fixing part, the adjusting part and the extruding part. During the clamping process of the special-shaped tube, the special-shaped tube is double-clamped by the extruding part and the adjusting part to ensure the stability of the special-shaped tube. Before the special-shaped tube is clamped, the special-shaped tube is first extended into the center of the fixing part, and the special-shaped tube is pre-clamped by the extruding part arranged outside the fixing part. At the same time, when the extruding part contacts the wall of the special-shaped tube when clamping the special-shaped tube, the adjusting part continues to apply force to the wall of the special-shaped tube. When the adjusting part applies force, the extruding part keeps the special-shaped tube in the center position to prevent the occurrence of The offset error affects the subsequent processing. After the adjustment part finally fixes the special-shaped tube, the special-shaped tube is firmly clamped to ensure that the accuracy of the subsequent special-shaped tube welding or cutting process is not affected. After the special-shaped tube is processed, the adjustment part only needs to be partially loosened, and there is no need to completely release the special-shaped tube. The extrusion part still fixes the special-shaped tube. At this time, when the processing position of the special-shaped tube needs to be adjusted, it is only necessary to move the special-shaped tube horizontally in the center of the extrusion part to maintain the center position. There is no need to frequently disassemble and assemble the special-shaped tube to cause center offset errors, which is time-consuming and reduces production efficiency.

[0007] Further, in an embodiment of the present invention, the adjustment part includes: an adjustment plate, the adjustment plate is arranged on the upper surface of the base, the bottom of the adjustment plate is in a circular ring shape, and a rectangular plate is arranged on the outer periphery of the circular ring of the bottom for connecting with the placement part; a circular shaft is arranged on the lower surface of the bottom of the adjustment plate, and the circular shaft cooperates with the base for rotation adjustment, a through hole is opened at the bottom of the adjustment plate, and the through hole is fixed to the adjustment member through the adjustment shaft; a through hole is arranged on the rectangular plate surface of the adjustment plate, and the through hole is connected to the placement part through the fixed shaft and the locking member. The through hole at the bottom of the adjustment plate is in a semicircular arc shape, and the through hole is arranged in a plurality, and the inner diameter of the through hole is smaller than the outer diameter of the adjustment member. The adjustment part does not need to use double-end clamping when clamping some small special-shaped tubes. The adjustment part can turn the special-shaped tube during single clamping (in the existing processing, the middle of the tube is generally clamped, and then one end of the tube is milled. After the processing is completed, the tube is disassembled and the other end is processed. This step significantly reduces the processing efficiency). After the turning, both ends of the tube can be processed without disassembling the tube. The stability and processing accuracy of the tube can be guaranteed. The disassembly steps are reduced by the adjustment part, which can further improve the processing efficiency.

[0008] Further, in an embodiment of the present invention, the placement part includes: a placement shell, which is circular in shape as a whole, and a symmetrical connecting plate is arranged on the outer periphery of the placement shell, and the placement shell is fixedly connected to the adjustment part through the connecting plate, and the placement shell is hollow; a rotation area is arranged on the inner wall surface of the placement shell, and the rotation area is arranged to be lower than the inner wall surface of the placement shell and is concave, and the rotation area surrounds the inner wall of the placement shell; a through hole is opened on the surface of the connecting plate, and the adjustment part is fixedly connected through the through hole. The placement part ensures that the special-shaped pipe is always kept in the center position during the clamping operation to reduce the error caused by the offset and ensure the processing accuracy of the pipe fittings.

[0009] Further, in the embodiment of the present invention, the fixing part includes: a rotating body, which is set in a circular shape, and a groove is opened on the outer wall of the rotating body along the outer wall of the rotating body, the rotating body is connected to the placement part, and a through hole is opened inside the rotating body; a sliding body, which is a rectangular column, and a through hole is opened inside the sliding body to set the sliding body hollow, and a rectangular groove is opened on the outer side of the sliding body; a fixing plate, which is connected to the sliding body, and the fixing plate is a plate type with both ends bent inward, the fixing plate is higher than the sliding body, and the fixing plate and the sliding body are welded into one. The inner side of the sliding body is fitted and connected to the rotating body, and one end of the sliding body extends into the range of the through hole of the rotating body; a connecting hole is opened on the upper surface of the sliding body, and the connecting hole is circular for connecting the adjusting part, and a sliding groove is opened on the surface of the through hole inside the sliding body, and the sliding groove is set to be lower than the inner surface of the sliding body; the sliding groove is set to be a rectangular strip, and at least two sliding grooves are set to form symmetry at the same time. One end of the bent plates at both ends of the fixed plate is connected to the sliding body and there is a gap with the outer periphery of the rotating body. The other end of the bent plates at both ends of the fixed plate is longer than one end of the bent plates at both ends of the fixed plate, and the length of the other end of the bent plates at both ends of the fixed plate exceeds the circumference of the connecting hole. At least three sliding bodies are provided, and at least three fixed plates are provided. The number of the fixed plates is the same as the number of the sliding bodies, and the sliding body and the fixed plates are evenly distributed on the outer periphery of the rotating body. When the wall surface of the special-shaped tube cannot be well matched with the clamping device when the fixed part is clamped, and the special-shaped tube is not convenient to rotate and adjust, the fixed part can adjust its own rotation to match the clamping device with the special-shaped tube, thereby greatly reducing the labor of workers to adjust the special-shaped tube.

[0010] Furthermore, in an embodiment of the present invention, the adjusting portion includes: a protective cover, which is arranged in a circular shape, has an accommodating space inside, the center of the protective cover is at the same position as the axis of the sliding body, and the protective cover is connected to the fixing portion; a driving wheel, which is arranged inside the protective cover, the driving wheel and the protective cover are at the same axis position, the driving wheel shaft end passes through the surface of the protective cover, and the driving wheel gear end remains arranged inside the protective cover; a rotating motor, which is arranged above the protective cover, and the rotating shaft of the rotating motor passes through the upper surface of the protective cover; a fixing seat, which is connected to the protective cover, the fixing seat is arranged inside the protective cover, and the fixing seat is arranged at the outer edge of the protective cover; a driving wheel , the driving wheel is connected to the rotating shaft, and the driving wheel is arranged inside the protective cover; the driven wheel is connected to the fixed seat, and the driven wheel is arranged inside the protective cover, and the driven wheel is meshed and connected with the driving wheel; the adjusting block is connected to the driving wheel, and the adjusting block is arranged in a rectangular parallelepiped, and one end of the adjusting block is a full-circular surface, and a placement plate for bearing is arranged on the surface of the adjusting block; the placement plate is arranged in a T-shape above the surface of the adjusting block, and an adjustable groove is arranged below the placement plate, and the adjustable groove is located on the surface of the adjusting block, and the adjustable groove is lower than the surface of the adjusting block; a sliding block for movement is arranged on the opposite surface of the adjusting block where the placement plate surface is arranged, and the sliding block is arranged as two symmetrically distributed on both sides of the adjusting block. The driving wheel passes through the upper surface of the sliding body, and the number of the driving wheels arranged is the same as the number of the sliding body. The driven wheel is provided with two, the driven wheel cooperates with the driving wheel, the driven wheel drives the rotation of the driving wheel, the outer diameter of the driven wheel is larger than the driving wheel; the driving wheel contacts only one of the driven wheels, not two of the driven wheels at the same time; the driving wheel does not contact the driving wheel, and the driving wheel contacts the two driven wheels at the same time. The adjustment block is located inside the sliding body, and the outermost surface of the adjustment block does not exceed the outermost surface of the sliding body. The adjustment part reduces the manual clamping in the process of clamping the special-shaped tube, and the special-shaped tube cannot be clamped firmly, which is easy to cause shaking during the processing. And the adjustment block of the adjustment part can play a protective role in the clamping of the special-shaped tube. When the clamping surface of the adjustment block is a full-circular surface, it is point contact when contacting with the wall surface of the special-shaped tube. If there is a groove on the wall surface of the special-shaped tube, the adjustment block contacts the wall surface of the special-shaped tube in a concave shape, which can form an outward pressure during clamping to ensure the stability of the clamping.

[0011] Further, in an embodiment of the present invention, the extrusion portion includes: a drive motor, which is arranged in the rectangular groove of the sliding body, and the drive motor is connected to the adjusting portion; a swing block, which is connected to the drive motor, and a through hole is opened on the surface of the swing block, and a rotating shaft for connecting the drive motor and the swing block is arranged in the through hole, and the rotating shaft and the swing block are in the same plane, and the inner wall of the swing block is hollow; a conversion block, which is connected to the swing block, and the conversion block is movably connected to the swing block; an outer cover, which is located below the swing block, and the outer cover has a accommodating space inside, and the extrusion block is arranged in the accommodating space of the outer cover, and the extrusion block is movably connected in the outer cover, and is not locked and fixed with the outer cover; a spring, which is located below the swing block, and the two ends of the spring respectively contact the upper surface of the outer cover and the lower surface of the swing block. The upper part of the conversion block is convex and the lower part is a rectangular block. The convex part of the conversion block is installed on the inner wall surface of the swing block. The rectangular block is used to maintain stability when the spring is forced. The outer cover is movably connected to the extrusion block. There is a gap between the outer cover and the extrusion block for the extrusion block to rotate inside the outer cover. When the special-shaped tube is completely fixed, the extrusion part is used to assist in positioning the special-shaped tube, and the special-shaped tube is kept at the center of the placement part to reduce the offset error and improve the processing accuracy. At the same time, when the special-shaped tube needs to be processed at another position, the center of the placement part can be moved by the extrusion part, reducing the repeated clamping process, reducing the workload, and improving the processing efficiency.

[0012] The embodiment of the present invention also discloses a positioning method, comprising the following steps:

[0013] Putting the pipe, inserting one end of the pipe into the placing part while continuing to convey the pipe until the pipe is placed;

[0014] Auxiliary positioning: after the pipe is inserted into the placement portion, the extrusion portion moves toward the center of the placement portion, and at the same time, the extrusion block of the extrusion portion approaches the pipe, and the outer periphery of the pipe is first fixed by the extrusion block, so that the pipe is kept in the center of the placement portion;

[0015] Fixing the pipe, after the pipe is pre-fixed by the extrusion part, the adjustment part installed on the fixing part moves toward the center of the placement part, and then the adjustment block of the adjustment part performs the final fixation on the pipe, and the pipe is stably clamped by the adjustment block;

[0016] Processing: perform the required cutting or welding on the pipe.

[0017] Furthermore, the embodiment of the present invention also discloses: after the tube placing step, there is also a step of position adjustment. When positioning a tube that is inconvenient to move, the rotating body of the fixing part rotates around the center of the placing part to rotate and reverse the direction of the adjusting part and the extruding part so that they can be fixed and clamped in accordance with the shape of the tube.

[0018] Furthermore, the embodiment of the present invention also discloses that: in the auxiliary positioning step, the extrusion block is divided into two pieces and when fixing the pipe, in response to the different shapes of the pipe, the extrusion block self-adjusts the upper and lower positions through the swing block, thereby cooperating with the outer wall surface of the pipe, thereby improving the stability of the pipe during the auxiliary positioning process.

[0019] Furthermore, the embodiment of the present invention also discloses that: in the pipe fixing step, the adjusting block and the extruding block move toward the pipe at the same time. After the extruding block contacts the wall of the pipe, the extruding block will apply pressure to the pipe through the extrusion force. At the same time, due to the mutual force, the extrusion block will move away from the center on the surface of the adjusting block. During the movement of the extrusion block, the adjusting block maintains a continuous downward pressure. When the adjusting block completely fixes the pipe, the extruding block also stops moving. This forms a double force state to protect the fixed clamping of the pipe.

[0020] The beneficial effects of the present invention are as follows: first, the positioning device described in the present invention can clamp the special-shaped tube in the special-shaped tube processing process to reduce the offset error and stabilize the clamping effect. First, after the special-shaped tube is placed into the fixing part through the adjusting part, the adjusting part moves toward the special-shaped tube, and at the same time, the extrusion part arranged on the adjusting part moves along with it. At this time, the extrusion part will first contact the outer wall surface of the special-shaped tube, thereby extruding and applying force to the special-shaped tube. The special-shaped tube is first kept at the center of the fixing part through the extrusion part, thereby reducing the generation of offset errors. In the process of the extrusion part applying force to the special-shaped tube, the adjusting part also moves toward the special-shaped tube at the same time. After the special-shaped tube is kept at the center, the adjusting part finally fixes the special-shaped tube to prevent the special-shaped tube from moving, and the extrusion part also applies force to the special-shaped tube. Through the double force, the stability of the special-shaped tube can be guaranteed in the subsequent processing of the special-shaped tube, and the shaking of the special-shaped tube can be reduced, which affects the processing accuracy. Second, when the processing position of the special-shaped tube needs to be adjusted after the processing is completed, it is only necessary to loosen the adjustment part to reduce the clamping force on the special-shaped tube, while the extrusion part maintains the fixed extrusion of the special-shaped tube. (When the position of the existing special-shaped tube is adjusted after the processing is completed, most of them are clamped by ordinary four-claw single-action chucks and then loosened and adjusted. After the adjustment, it is not easy to adjust the center, and it is easy to produce an offset error between the workpiece and the center of the chuck. In this case, workers need to adjust it many times, which is time-consuming and laborious.) In this way, the center position of the special-shaped tube is maintained, the offset error is reduced, and workers do not need to repeatedly adjust the clamping position of the special-shaped tube, thereby improving production efficiency. Third, through the combination of the fixing part and the placement part, when the special-shaped tube cannot be conveniently adjusted when clamped and fixed, the rotating fixing part rotates around the center of the placement part and the extrusion part and the fixing part rotate at the same time, which can change the clamping position of the device, thereby cooperating with the outer wall surface of the special-shaped tube, reducing the damage to the special-shaped tube caused by the forced clamping of the special-shaped tube that cannot be adjusted, and improving the scope of use. Fourth, when the wall surface of the special-shaped tube is uncertain, the extrusion part can adaptively adjust the special-shaped tube. During extrusion, the conversion block, spring and extrusion block movably connected with the swing block can adjust the upper and lower positions according to the wall surface of the special-shaped tube, thereby adapting to the wall surface of the special-shaped tube and improving the clamping stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the positioning device according to an embodiment of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the adjustment part of the positioning device according to an embodiment of the present invention.

[0024] Figure 3 It is a schematic diagram of the structure of the placement part of the positioning device according to an embodiment of the present invention.

[0025] Figure 4 It is a schematic diagram of the structure of the fixing part of the positioning device according to an embodiment of the present invention.

[0026] Figure 5 It is a schematic diagram of the structure of the adjustment part of the positioning device according to an embodiment of the present invention.

[0027] Figure 6 It is a schematic structural diagram of the adjustment part of the positioning device according to an embodiment of the present invention from another viewing angle.

[0028] Figure 7 It is a schematic diagram of the structure of the extrusion part of the positioning device according to an embodiment of the present invention.

[0029] Figure 8 It is a schematic diagram of the working status effect of the positioning device according to an embodiment of the present invention.

[0030] In the attached figure

[0031] 100. Matrix 200. Adjustment Department 201. Fixed axis 202. Locking parts 203. Adjustment plate 204. Adjustment Area 205. Adjustment axis 206. Adjustment parts 300. Placement Department 301. Place the shell 302, Connecting plate 303, Rotation Zone 400, fixed part 401, fixed plate 402. Sliding Body 403, Sliding slot 404、Rotating body 405, connection hole 50. Adjustment Department 501. Rotating electrical machines 502. Protective cover 503. Adjustment block 504. Placement Board 505, Adjustable Slot 506、Driven wheel 507, Driving Wheel 508, fixed seat 509. Slider 510, Driving Wheel 60. Extrusion Department 601. Drive Motor 602, Swing Block 603, Rotation Axis 604, Spring 605, cover 606, Extrusion Block 607. Conversion Block DETAILED DESCRIPTION

[0032] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0036] Embodiment 1:

[0037] like Figure 1 , 4 As shown in FIG. 5 , this embodiment discloses a positioning device, including: a base 100 , a rotating mechanism, an adjustment portion 200 , a placement portion 300 , a fixing portion 400 , a regulating portion 50 , and a pressing portion 60 .

[0038] The base 100 is provided with a storage space inside, and the base 100 is used to support the pipe and the positioning device. The storage space is provided with: a rotating mechanism for controlling the rotation of the device, the rotating mechanism is vertically rotating, the adjusting portion 200 is arranged on the surface of the base 100, the adjusting portion 200 is fixedly connected to the base 100, the adjusting portion 200 is used to support and adjust the position of the pipe, the adjusting portion 200 is controlled by the rotating mechanism, the placing portion 300 is arranged on one side of the adjusting portion 200, the placing portion 300 is connected to the adjusting portion 200, the placing portion 300 is arranged opposite to the adjusting portion 200, the fixing portion 400 is arranged on one side of the placing portion 300, the fixing portion 400 is connected to the placing portion 300, the fixing portion 400 passes through the placing portion 300, the outer circle of the fixing portion 400 is the same size as the outer circle of the placing portion 300, and the fixing portion 400 It includes: a sliding body 402 connected to a rotating body 404, an adjusting part 50 is arranged on one side of the fixing part 400, the adjusting part 50 is connected to the fixing part 400, the adjusting part 50 is used to adjust and fix the pipe, the adjusting part 50 includes: an adjusting block 503 connected to the fixing part 400, the adjusting block 503 moves in a vertical direction along the axis center of the placing part 300, the surface of the adjusting block 503 fixes the pipe, an extruding part 60 is arranged on one side of the adjusting part 50, the extruding part 60 is connected to the adjusting part 50, one end of the extruding part 60 is lower than one end of the adjusting part 50, the extruding part 60 and the adjusting part 50 are in a simultaneous motion state, the extruding part 60 is used to preliminarily position the pipe, the extruding part 60 includes: an extruding block 606 connected to the adjusting block 503, the extruding block 606 is higher than the adjusting block 503, the extruding block 606 acts on the pipe surface first and then the adjusting block 503 acts on the pipe surface.

[0039] Through the combined installation of the fixing part 400, the adjusting part 50, and the extruding part 60, the extruding part 60 and the adjusting part 50 perform a double clamping of the special-shaped tube during the clamping process of the special-shaped tube to ensure the stability of the special-shaped tube. Before the special-shaped tube is clamped, the special-shaped tube is first extended into the center of the fixing part 400, and the special-shaped tube is pre-clamped by the extruding part 60 arranged outside the fixing part 400. At the same time, when the extruding part 60 contacts the wall of the special-shaped tube when clamping the special-shaped tube, the adjusting part 50 continues to apply force to the wall of the special-shaped tube. When the adjusting part 50 applies force, the extruding part 60 keeps the special-shaped tube in the center position to prevent The offset error affects the subsequent processing. After the adjustment part 50 finally fixes the special-shaped tube, the special-shaped tube is firmly clamped to ensure that the accuracy of the subsequent special-shaped tube welding or cutting process is not affected. After the special-shaped tube is processed, the adjustment part 50 only needs to be partially loosened, and there is no need to completely release the special-shaped tube. The extrusion part 60 still fixes the special-shaped tube. At this time, when the processing position of the special-shaped tube needs to be adjusted, it is only necessary to move the special-shaped tube horizontally in the center of the extrusion part 60 to maintain the center position. There is no need to frequently disassemble and assemble the special-shaped tube to cause center offset errors, which is time-consuming and reduces production efficiency. After the special-shaped tube is placed into the fixing part 400 by the adjusting part 50, the adjusting part 50 moves toward the special-shaped tube, and the extruding part 60 arranged on the adjusting part 50 moves along with it. At this time, the extruding part 60 will first contact the outer wall of the special-shaped tube, thereby applying extrusion force to the special-shaped tube. The special-shaped tube is first kept at the center of the fixing part 400 by the extruding part 60 to reduce the occurrence of offset error. In the process of the extruding part 60 applying force to the special-shaped tube, the adjusting part 50 also moves toward the special-shaped tube at the same time. After the special-shaped tube maintains the center, the adjusting part 50 finally fixes the special-shaped tube to prevent the special-shaped tube from moving, and the extruding part 60 also applies force to the special-shaped tube. The double force can ensure the stability of the special-shaped tube in the subsequent processing of the special-shaped tube, reduce the shaking of the special-shaped tube, and affect the processing accuracy.

[0040] like Figure 1 , 2As shown, the adjustment part 200 includes: an adjustment plate 203, a fixed shaft 201, a locking member 202, an adjustment shaft 205, and an adjustment member 206. The adjustment plate 203 is arranged on the upper surface of the base 100, and the bottom of the adjustment plate 203 is in a circular ring shape. A rectangular plate is arranged on the outer periphery of the bottom circular ring for connecting with the placement part 300; a circular shaft is arranged on the lower surface of the bottom of the adjustment plate 203, and the circular shaft cooperates with the base 100 for rotation adjustment. An adjustment area 204 is opened at the bottom of the adjustment plate 203, and the adjustment area 204 is fixed to the adjustment member 206 through the adjustment shaft 205; a through hole is arranged on the rectangular plate surface of the adjustment plate 203, and the through hole is connected to the placement part 300 through the fixed shaft 201 and the locking member 202. The through hole at the bottom of the adjustment plate 203 is in a semicircular arc shape, and the through hole is arranged in multiples, and the inner diameter of the through hole is smaller than the outer diameter of the adjustment member 206. By using the adjustment part 200, there is no need to use double-end clamping when clamping some small special-shaped tubes. During the single clamping process, the adjustment part 200 can turn the special-shaped tube. (In the existing processing, the middle of the tube is generally clamped, and then one end of the tube is milled. After the processing is completed, the tube is disassembled and the other end is processed. This step significantly reduces the processing efficiency). After the turning, both ends of the tube can be processed. There is no need to disassemble the tube and the stability and processing accuracy of the tube can be guaranteed. The adjustment part 200 reduces the disassembly steps and can further improve the processing efficiency.

[0041] like Figure 1 , 3 As shown, the placement part 300 includes: a placement shell 301, a connecting plate 302, and a rotation area 303. The placement shell 301 is circular as a whole, and a symmetrical connecting plate 302 is arranged on the outer periphery of the placement shell 301. The placement shell 301 is fixedly connected to the adjustment part 200 through the connecting plate 302, and the placement shell 301 is hollow; a rotation area 303 is arranged on the inner wall surface of the placement shell 301, and the rotation area 303 is arranged to be lower than the inner wall surface of the placement shell 301 and has a concave shape, and the rotation area 303 surrounds the inner wall of the placement shell 301; a through hole is opened on the surface of the connecting plate 302, and the adjustment part 200 is fixedly connected through the through hole. The placement part 300 ensures that the special-shaped pipe is always kept in the center position during the clamping operation to reduce the error caused by the offset and ensure the processing accuracy of the pipe fittings.

[0042] like Figure 1 , 4As shown, the fixing part 400 includes: a rotating body 404, a sliding body 402, a fixing plate 401, a sliding groove 403, and a connecting hole 405. The rotating body 404 is set in a circular shape, and a groove is opened on the outer wall of the rotating body 404 along the outer wall of the rotating body 404. The rotating body 404 is connected to the placement part 300, and a through hole is opened inside the rotating body 404; the sliding body 402, the sliding body 402 is a rectangular column, a through hole is opened inside the sliding body 402, and the sliding body 402 is set in a hollow shape, and a rectangular groove is opened on the outer side of the sliding body 402; the fixing plate 401, the fixing plate 401 is connected to the sliding body 402, the fixing plate 401 is a plate shape with both ends bent inward, the fixing plate 401 is higher than the sliding body 402, and the fixing plate 401 and the sliding body 402 are welded into one. The inner side of the sliding body 402 is connected to the rotating body 404, and one end of the sliding body 402 extends into the range of the through hole of the rotating body 404; a connecting hole 405 is opened on the upper surface of the sliding body 402, and the connecting hole 405 is circular and used to connect the adjusting part 50; a sliding groove 403 is opened on the surface of the internal through hole of the sliding body 402, and the sliding groove 403 is set to be lower than the inner surface of the sliding body 402; the sliding groove 403 is set in a rectangular strip shape, and at least two sliding grooves 403 are set to form symmetry. One end of the two end bending plates of the fixed plate 401 is connected to the sliding body 402 and there is a gap with the outer periphery of the rotating body 404, and the other end of the two end bending plates of the fixed plate 401 is longer than one end of the two end bending plates of the fixed plate 401, and the other end of the two end bending plates of the fixed plate 401 is longer than the circumference of the connecting hole 405. At least three sliding bodies 402 are provided, and at least three fixing plates 401 are provided. The number of fixing plates 401 is the same as that of sliding bodies 402, and sliding bodies 402 and fixing plates 401 are evenly distributed on the periphery of rotating body 404. When the wall of the special-shaped tube cannot be well matched with the clamping device through the fixing part 400, and the special-shaped tube is not convenient to rotate and adjust, at this time, the fixing part 400 can adjust the clamping device and the special-shaped tube by its own rotation, thereby greatly reducing the labor of workers to adjust the special-shaped tube. When the special-shaped tube cannot be conveniently adjusted when clamped and fixed by the combination of the fixing part 400 and the placement part 300, the rotation fixing part 400 rotates around the center of the placement part 300 and rotates the extrusion part 60 and the fixing part 400 at the same time, which can change the clamping position of the device, thereby matching the outer wall of the special-shaped tube, reducing the damage to the special-shaped tube caused by the inability to adjust the special-shaped tube and forcing the clamping, and improving the scope of use.

[0043] like Figure 1 , 5As shown in FIG. 6 , the adjustment portion 50 includes: a protective cover 502 , a driving wheel 510 , a rotating motor 501 , a fixing seat 508 , a driving wheel 507 , a driven wheel 506 , an adjustment block 503 , a sliding block 509 , an adjustable slot 505 , and a placement plate 504 . The protective cover 502 is arranged in a circular shape, and there is a accommodating space inside the protective cover 502. The center of the circle of the protective cover 502 is at the same position as the axis of the sliding body 402. The protective cover 502 is connected to the fixing part 400. The driving wheel 510 is arranged inside the protective cover 502. The driving wheel 510 and the protective cover 502 are at the same axis position. The shaft end of the driving wheel 510 passes through the surface of the protective cover 502, and the gear end of the driving wheel 510 remains arranged inside the protective cover 502. The rotating motor 501 is arranged above the protective cover 502, and the rotating shaft of the rotating motor 501 passes through the upper surface of the protective cover 502. The fixing seat 508 is connected to the protective cover 502, and the fixing seat 508 is arranged inside the protective cover 502. The fixing seat 508 is arranged at the outer edge of the protective cover 502. The driving wheel 507 is connected to the rotating shaft, and the driving wheel 507 is arranged on the protective cover 502. Inside, the driven wheel 506 is connected to the fixed seat 508, and the driven wheel 506 is arranged inside the protective cover 502. The driven wheel 506 is meshed and connected with the driving wheel 507. The adjusting block 503 is connected to the driving wheel 510. The adjusting block 503 is arranged in a rectangular parallelepiped, and one end of the adjusting block 503 is a full-circular surface. A placement plate 504 for bearing is arranged on the surface of the adjusting block 503; the placement plate 504 is arranged in a T-shape above the surface of the adjusting block 503, and an adjustable groove 505 is arranged below the placement plate 504. The adjustable groove 505 is located on the surface of the adjusting block 503, and the adjustable groove 505 is lower than the surface of the adjusting block 503; a sliding block 509 for movement is arranged on the opposite surface of the adjusting block 503 where the placement plate 504 is arranged, and the sliding blocks 509 are arranged in two symmetrically distributed on both sides of the adjusting block 503. The driving wheel 510 passes through the upper surface of the sliding body 402, and the number of the driving wheels 510 arranged is the same as the number of the sliding body 402. There are two driven wheels 506, which cooperate with the driving wheel 510, and the driven wheel 506 drives the driving wheel 510 to rotate. The outer diameter of the driven wheel 506 is larger than the driving wheel 507; the driving wheel 507 contacts only one driven wheel 506, not two driven wheels 506 at the same time; the driving wheel 510 does not contact the driving wheel 507, and the driving wheel 510 contacts two driven wheels 506 at the same time. The adjustment block 503 is located inside the sliding body 402, and the outermost surface of the adjustment block 503 does not exceed the outermost surface of the sliding body 402. The adjustment part 50 reduces the manual clamping in the process of clamping the special-shaped tube, and the special-shaped tube cannot be firmly clamped effectively, which is easy to cause shaking during the processing.In addition, the adjustment block 503 of the adjustment part 50 can play a protective role in the clamping of the special-shaped tube. When the clamping surface of the adjustment block 503 is a full-circular surface, it is in point contact with the wall surface of the special-shaped tube. If there is a groove on the wall surface of the special-shaped tube, the adjustment block 503 contacts the wall surface of the special-shaped tube in a concave shape, which can form outward pressure during clamping to ensure stable clamping.

[0044] like Figure 1 , 7As shown, the extrusion part 60 includes: a driving motor 601 , a swing block 602 , a conversion block, an outer cover 605 , a spring 604 , and an extrusion block 606 . The driving motor 601 is arranged in the rectangular groove of the sliding body 402, and the driving motor 601 is connected to the adjusting part 50; the swing block 602, the swing block 602 is connected to the driving motor 601, and a through hole is opened on the surface of the swing block 602, and a rotating shaft 603 for connecting the driving motor 601 and the swing block 602 is arranged in the through hole, and the rotating shaft 603 and the swing block 602 are in the same plane, and the inner wall of the swing block 602 is hollow, and the conversion block is connected to the swing block 602, and the conversion block and the swing block 602 are movably connected. The outer cover 605 is located below the swing block 602, and there is a accommodating space inside the outer cover 605. An extrusion block 606 is arranged in the accommodating space of the outer cover 605, and the extrusion block 606 is movably connected in the outer cover 605, and is not locked and fixed with the outer cover 605. The spring 604 is located below the swing block 602, and the two ends of the spring 604 contact the upper surface of the outer cover 605 and the lower surface of the swing block 602 respectively. The upper part of the conversion block is convex and the lower part is a rectangular block. The convex part of the conversion block is installed on the inner wall surface of the swing block 602. The rectangular block is used to maintain stability when applying force to the spring 604. The outer cover 605 and the extrusion block 606 are movably connected. There is a gap between the outer cover 605 and the extrusion block 606 for the extrusion block 606 to rotate inside the outer cover 605. When the special-shaped tube is completely fixed, the extrusion part 60 is used to assist in positioning the special-shaped tube, and the special-shaped tube is kept at the center of the placement part 300 to reduce the offset error and improve the processing accuracy. At the same time, when the special-shaped tube needs to be processed at another position, the center of the placement part 300 can be moved by the extrusion part 60, which reduces the process of repeated clamping, reduces the workload, and improves the processing efficiency. When the wall of the special-shaped tube is unstable, the extrusion part 60 can make adaptive adjustments to such special-shaped tubes. During extrusion, the conversion block, spring 604 and extrusion block 606, which are movably connected to the swing block 602, can adjust the upper and lower positions according to the wall of the special-shaped tube, so as to adapt to the wall of the special-shaped tube and improve the clamping stability. When the processing position of the special-shaped tube needs to be adjusted after the processing of the special-shaped tube is completed, it is only necessary to loosen the adjustment part 50 to reduce the clamping force on the special-shaped tube, while the extrusion part 60 maintains the fixed extrusion of the special-shaped tube. (When the position of the existing special-shaped tube is adjusted after the processing is completed, most of them are clamped by ordinary four-jaw single-action chucks and then loosened and adjusted. After the adjustment, it is not easy to adjust the center, and it is easy to produce an offset error between the workpiece and the center of the chuck. In addition, workers need to adjust it many times, which is time-consuming and labor-intensive.) In this way, the center position of the special-shaped tube is maintained, the offset error is reduced, and workers do not need to repeatedly adjust the clamping position of the special-shaped tube, thereby improving production efficiency.

[0045] like Figure 1 , 8 As shown, a positioning method of a positioning device is finally provided, comprising the following steps:

[0046] Putting the pipe, inserting one end of the pipe into the placing part 300 while continuing to transport the pipe until the pipe is placed;

[0047] Auxiliary positioning: after the pipe is inserted into the placement portion 300, the extrusion portion 60 moves toward the center of the placement portion 300, and at the same time, the extrusion block 606 of the extrusion portion 60 approaches the pipe, and the outer periphery of the pipe is first fixed by the extrusion block 606, so that the pipe is kept in the center of the placement portion 300;

[0048] Fixing the pipe, after the pipe is pre-fixed by the extrusion part 60, the adjustment part 50 installed on the fixing part 400 moves toward the center of the placement part 300, and then the adjustment block 503 of the adjustment part 50 performs the final fixation on the pipe, and the pipe is stably clamped by the adjustment block 503;

[0049] Processing: perform the required cutting or welding on the pipe.

[0050] Specifically, after the tube placing step, there is another step: position adjustment. When positioning a tube that is inconvenient to move, the rotating body 404 of the fixing part 400 rotates around the center of the placing part 300 to rotate and reverse the adjusting part 50 and the extruding part 60 so that they can be fixed and clamped in accordance with the shape of the tube.

[0051] Specifically, in the auxiliary positioning step, the extrusion block 606 is divided into two pieces. When fixing the pipe, in response to the different shapes of the pipe, the extrusion block 606 self-adjusts the upper and lower positions through the swing block 602, thereby cooperating with the outer wall surface of the pipe and improving the stability of the pipe during the auxiliary positioning process.

[0052] Specifically, in the pipe fixing step, the adjusting block 503 and the extruding block 606 move toward the pipe at the same time. After the extruding block 606 contacts the wall of the pipe, the extruding block 606 will apply pressure to the pipe through the extrusion force. At the same time, due to the mutual force, the extruding block 606 will move away from the center on the surface of the adjusting block 503. During the movement of the extruding block 606, the adjusting block 503 maintains a continuous downward pressure. When the adjusting block 503 completely fixes the pipe, the extruding block 606 also stops moving. This forms a double force state to protect the fixed clamping of the pipe.

[0053] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A special-shaped pipe positioning device, wherein: include: A base body, wherein a receiving space is provided inside the base body, and the base body is used to support the pipe and the positioning device, and the receiving space is provided with: A rotating mechanism, the rotating mechanism is used to control the rotation of the device, and the rotating mechanism rotates vertically; An adjustment part, the adjustment part is arranged on the surface of the base, the adjustment part is fixedly connected to the base, the adjustment part is used to support and adjust the position of the pipe, and the adjustment part is controlled by the rotating mechanism; A placing portion, the placing portion is arranged at one side of the adjusting portion, the placing portion is connected to the adjusting portion, and the placing portion and the adjusting portion are arranged opposite to each other; A fixing part, the fixing part is arranged on one side of the placing part, the fixing part is connected to the placing part, the fixing part passes through the placing part, the outer circle of the fixing part is the same size as the outer circle of the placing part, and the fixing part includes: A rotating body, the rotating body is arranged in a circular shape, a groove is provided on the outer wall of the rotating body along the outer wall of the rotating body, the rotating body is connected to the placement part, and a through hole is provided inside the rotating body; A sliding body, the inner side of which is fitted and connected to the rotating body; the sliding body is a rectangular column, a through hole is opened inside the sliding body to make the sliding body hollow, and a rectangular groove is opened on the outer side of the sliding body; A fixing plate, the fixing plate is connected to the sliding body, the fixing plate is in the shape of a plate with both ends bent inwards, the fixing plate is higher than the sliding body, and the fixing plate and the sliding body are welded into one body; An adjusting part, the adjusting part is arranged on one side of the fixing part, the adjusting part is connected to the fixing part, the adjusting part is used to adjust and fix the pipe, and the adjusting part includes: An adjusting block, the adjusting block is connected to the fixing portion, the adjusting block moves in a direction perpendicular to the center of the axis of the placing portion, and the surface of the adjusting block fixes the pipe; A protective cover, the protective cover is arranged in a circular shape, the interior of the protective cover has a containing space, the center of the circle of the protective cover is in the same position as the axis of the sliding body, and the protective cover is connected to the fixing portion; A driving wheel, the driving wheel is arranged inside the protective cover, the driving wheel and the protective cover are at the same axial position, the driving wheel shaft end passes through the surface of the protective cover, and the driving wheel gear end remains arranged inside the protective cover; A rotating motor, wherein the rotating motor is arranged above the protective cover, and a rotating shaft of the rotating motor passes through an upper surface of the protective cover; A fixing seat, the fixing seat is connected to the protective cover, the fixing seat is arranged inside the protective cover, and the fixing seat is arranged at the outer edge of the protective cover; A driving wheel, the driving wheel is connected to the rotating shaft, and the driving wheel is arranged inside the protective cover; A driven wheel, the driven wheel is connected to the fixing seat, the driven wheel is arranged inside the protective cover, and the driven wheel is meshed and connected with the driving wheel; The adjusting block is connected to the driving wheel, the adjusting block is arranged in a rectangular parallelepiped, one end of the adjusting block is a full-circular surface, and a placement plate for bearing is arranged on the surface of the adjusting block; The placement plate is T-shaped and arranged above the surface of the adjustment block. An adjustable slot is arranged below the placement plate. The adjustable slot is located on the surface of the adjustment block and is lower than the surface of the adjustment block. A sliding block for movement is provided on the opposite surface of the adjusting block to the surface of the placing plate, and the sliding blocks are provided in two symmetrically distributed on both sides of the adjusting block; An extrusion part, the extrusion part is arranged on one side of the adjusting part, the extrusion part is connected to the adjusting part, one end of the extrusion part is lower than one end of the adjusting part, the extrusion part and the adjusting part are in a simultaneous motion state, the extrusion part is used to preliminarily position the pipe, and the extrusion part includes: An extrusion block, wherein the extrusion block is connected to the adjustment block, the extrusion block is higher than the adjustment block, the extrusion block first acts on the surface of the pipe and then the adjustment block acts on the surface of the pipe; A driving motor, the driving motor is arranged in the rectangular groove of the sliding body, and the driving motor is connected to the adjusting part; A swing block, the swing block is connected to the driving motor, a through hole is opened on the surface of the swing block, a rotating shaft for connecting the driving motor and the swing block is arranged in the through hole, the rotating shaft and the swing block are in the same plane, and the inner wall of the swing block is hollow; A conversion block, wherein the conversion block is connected to the swing block, and the conversion block is movably connected to the swing block; An outer cover, the outer cover is located below the swing block, the outer cover has a receiving space inside, the extrusion block is arranged in the receiving space of the outer cover, the extrusion block is movably connected in the outer cover, and is not locked and fixed with the outer cover; A spring, wherein the spring is located below the swing block, and two ends of the spring contact the upper surface of the outer cover and the lower surface of the swing block respectively; One end of the sliding body extends into the through hole of the rotating body; A connecting hole is provided on the upper surface of the sliding body, the connecting hole is circular and used for connecting the adjusting part, a sliding groove is provided on the surface of the internal through hole of the sliding body, and the sliding groove is arranged to be lower than the internal surface of the sliding body; The sliding groove is arranged in a rectangular strip shape, and at least two sliding grooves are arranged to form symmetry; The adjustment unit comprises: An adjustment plate, the adjustment plate is arranged on the upper surface of the base, the bottom of the adjustment plate is in a circular ring shape, and a rectangular plate is arranged on the outer periphery of the circular ring of the bottom to be connected with the placement portion; A circular shaft is arranged on the lower surface of the bottom of the adjustment plate, and the circular shaft cooperates with the base body for rotation adjustment. A through hole is opened at the bottom of the adjustment plate, and the through hole is fixed to the adjustment member through the adjustment shaft; A through hole is arranged on the rectangular plate surface of the adjustment plate, and the through hole is connected to the placement part through a fixed shaft and a locking member.

2. A special-shaped pipe positioning device according to claim 1, wherein: The through hole at the bottom of the adjustment plate is in a semicircular arc shape, the through hole is provided in plurality, and the inner diameter of the through hole is smaller than the outer diameter of the adjustment member.

3. A special-shaped pipe positioning device according to claim 2, wherein: The placement unit includes: A placement shell, the placement shell is circular in shape as a whole, a symmetrical connecting plate is arranged on the outer periphery of the placement shell, the placement shell is fixedly connected to the adjustment part through the connecting plate, and the placement shell is hollow; A rotation area is arranged on the inner wall surface of the placement shell, the rotation area is arranged to be lower than the inner wall surface of the placement shell in a concave shape, and the rotation area surrounds the inner wall of the placement shell; A through hole is opened on the surface of the connecting plate, and the adjusting part is fixedly connected through the through hole.

4. A special-shaped pipe positioning device according to claim 3, wherein: One end of the bent plates at both ends of the fixed plate is connected to the sliding body and has a gap with the outer periphery of the rotating body, and the other end of the bent plates at both ends of the fixed plate is longer than one end of the bent plates at both ends of the fixed plate.

5. A special-shaped pipe positioning device according to claim 4, wherein: At least three sliding bodies are provided, and at least three fixing plates are provided. The number of the fixing plates is the same as the number of the sliding bodies, and the sliding bodies and the fixing plates are evenly distributed outside the periphery of the rotating body.

6. A special-shaped pipe positioning device according to claim 5, wherein: The driving wheels pass through the upper surface of the sliding body, and the number of the driving wheels is the same as the number of the sliding bodies.

7. A special-shaped pipe positioning device according to claim 6, wherein: The driven wheels are provided with two, the driven wheels cooperate with the driving wheels, the driven wheels drive the driving wheels to rotate, and the outer diameter of the driven wheels is larger than that of the driving wheels; The driving wheel contacts only one of the driven wheels and does not contact both of the driven wheels at the same time; The driving wheel does not contact the driving wheel, and the driving wheel contacts the two driven wheels at the same time.

8. A special-shaped pipe positioning device according to claim 7, wherein: The adjusting block is located inside the sliding body, and the outermost surface of the adjusting block does not exceed the outermost surface of the sliding body.

9. A special-shaped pipe positioning device according to claim 8, wherein: The upper part of the conversion block is convex and the lower part is a rectangular block. The convex part of the conversion block is installed on the inner wall surface of the swing block. The rectangular block is used to maintain stability when applying force to the spring.

10. A special-shaped pipe positioning device according to claim 9, wherein: The outer cover is movably connected to the extrusion block, and a gap is provided between the outer cover and the extrusion block for the extrusion block to rotate inside the outer cover.

11. A positioning method for a special-shaped pipe positioning device according to any one of claims 1 to 10, comprising the following steps: Putting the pipe, inserting one end of the pipe into the placing part while continuing to convey the pipe until the pipe is placed; Auxiliary positioning: after the pipe is inserted into the placement portion, the extrusion portion moves toward the center of the placement portion, and at the same time, the extrusion block of the extrusion portion approaches the pipe, and the outer periphery of the pipe is first fixed by the extrusion block, so that the pipe is kept in the center of the placement portion; Fixing the pipe, after the pipe is pre-fixed by the extrusion part, the adjustment part installed on the fixing part moves toward the center of the placement part, and then the adjustment block of the adjustment part performs the final fixation on the pipe, and the pipe is stably clamped by the adjustment block; Processing: performing required cutting or welding processing on the pipe.

12. The positioning method according to claim 11, wherein: After the above-mentioned step of placing the tube, there are steps: Position adjustment: when positioning a pipe that is inconvenient to move, the rotating body of the fixing part rotates around the center of the placing part to rotate the adjusting part and the extruding part in reverse direction so that they can be fixed and clamped in accordance with the shape of the pipe.

13. The positioning method according to claim 12, wherein: In the auxiliary positioning step, the extrusion block is divided into two pieces. When fixing the pipe, the extrusion block can adjust its upper and lower positions by a swing block to match the outer wall of the pipe, thereby improving the stability of the pipe during the auxiliary positioning process.

14. The positioning method according to claim 12, wherein: In the pipe fixing step, the adjusting block and the extruding block move toward the pipe at the same time. After the extruding block contacts the wall of the pipe, the extruding block will press the pipe through the extrusion force. At the same time, due to the mutual force, the extruding block will move away from the center on the surface of the adjusting block. During the movement of the extruding block, the adjusting block maintains a continuous downward pressure. When the adjusting block completely fixes the pipe, the extruding block also stops moving. This forms a double force state to protect the fixed clamping of the pipe.

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