Split type multi-degree-of-freedom large-diameter pipe clamping device

Abstract

The invention relates to the field of pipe cutting and clamping devices, in particular to a split type multi-degree-of-freedom large-diameter pipe clamping device which comprises a bearing assembly, the bearing assembly comprises a base, the base is connected with a first platform, the first platform is slidably connected with a second platform, and the second platform is provided with a driving motor and a connecting base; the clamping assembly comprises a transmission shaft, the transmission shaft is arranged in the connecting base in a penetrating mode and connected with the driving motor, the clamping assembly further comprises a fixing disc, the fixing disc and the transmission shaft are coaxially arranged and fixedly connected, and a plurality of clamping rails and correcting rails are evenly distributed on the fixing disc. Compared with machine tool type pipe machining equipment, the pipe clamping device is relatively simple in structure, easy to manufacture, low in cost, convenient to move, suitable for pipe machining and cutting on a construction site, capable of achieving the pipe centering function, capable of achieving multi-degree-of-freedom adjustment, flexible to use and easy to operate.

Description

Technical Field

[0001] The present application relates to the field of pipe cutting and clamping devices, and in particular to a split type multi-degree-of-freedom large-diameter pipe clamping device. Background Art

[0002] After the production line is off, the pipes may need further trimming and cutting. For example, some of the continuously wound FRP pipes cannot meet the quality requirements due to abnormal production equipment, and some special parts of the pipes in the pipeline project have special length requirements. For larger diameter pipes with a diameter greater than 300mm, especially for pipes manufactured by continuous processes such as continuous winding FRP, it is common to have a length of more than 10m. This type of large-diameter and long-length pipe has a large deadweight and thick wall thickness. For FRP pipes with structural walls, the wall thickness to diameter ratio can reach 1:10. Usually, the cutting machine needs to perform progressive cutting of several circles to complete the pipe cutting, and the required cutting machine has high power and large size. Cutting by manual handheld cutting equipment is difficult and of poor quality.

[0003] The Chinese invention patent with the publication number CN114932497A discloses a large-diameter transparent pipe processing equipment and processing technology, including a production device for extruding and cooling transparent pipes, a cutting device for cutting transparent pipes is arranged on one side of the production device, the cutting device includes a support table and a sliding frame slidably arranged on the top surface of the support table, the transparent pipe passes through the inner side of the sliding frame, a sliding hole is opened on the top surface of the sliding frame, a sliding rod is passed through the sliding hole, the sliding rod is slidably arranged in the sliding hole, a cutting machine is fixed on one end of the sliding rod located on the inner side of the sliding frame, a synchronous driving mechanism for driving the sliding frame to move synchronously with the transparent pipe and a first resetting mechanism for resetting the sliding frame are arranged on the support table, and a second resetting mechanism for pulling the sliding rod upward is also arranged on the sliding frame. The large-diameter pipe processing equipment disclosed in the above invention application is large in size, inconvenient to move, and not suitable for construction sites.

[0004] At present, one possible method is to place large-diameter pipes on multiple management wheels, rotate more than one of the management wheels, make the pipes rotate axially on the management wheels, and use a cutting machine to cut the pipes. The problem with this cutting method is that the pipes have no axial constraints. In actual applications, even if the management wheels are strictly aligned, axial displacement will occur due to uneven force on the pipes, local stress and deformation of the management wheel mechanism, etc., resulting in the cuts on the pipe wall not being on the same cross section, making it difficult to cut and damaging the tool, and even causing danger. Summary of the invention

[0005] In response to the problems existing in the current large-diameter pipe processing equipment, the present application proposes a split-type multi-degree-of-freedom large-diameter pipe clamping device which has a relatively simple structure, is easy to manufacture and is lightweight overall. Compared with machine tool-type pipe processing equipment, it is lighter and easier to move. During the pipe clamping process, it can be adjusted with multiple degrees of freedom to meet the centering requirements for pipe cutting.

[0006] In order to achieve the above technical effects, this application proposes: A split type multi-degree-of-freedom large-diameter pipe clamping device comprises a bearing assembly, the bearing assembly comprises a base, the base is connected to a first platform, the first platform is slidably connected to a second platform, the second platform is provided with a driving motor and a connecting seat; a clamping assembly, the clamping assembly comprises a transmission shaft, the transmission shaft is passed through the connecting seat, the transmission shaft is connected to the driving motor, and also comprises a fixed disk coaxially arranged with the transmission shaft and fixedly connected, the fixed disk is evenly distributed with a plurality of clamping tracks and correction tracks.

[0007] The bearing assembly, as the bearing part, can realize adjustment of multiple degrees of freedom, which is convenient for centering the pipe; the first platform and the base are connected by a number of height-adjusting bolts, and the operator can adjust the horizontal angle between the first platform and the base by the height-adjusting bolts, thereby adjusting the pitch attitude of the clamping assembly; the first platform and the second platform are slidingly connected, and the two degrees of freedom of the clamping assembly can be adjusted by sliding the second platform; the transmission shaft is passed through the connecting seat and connected to the driving motor, and the driving motor provides rotational power for the clamping assembly; the transmission shaft is connected to the fixed plate, and a number of clamping tracks and correction tracks are evenly distributed on the fixed plate, the clamping track is used to clamp the pipe, and the correction track is used to calibrate the verticality and coaxiality of the pipe.

[0008] The clamping rails and the correction rails are arranged alternately, and the length direction of the clamping rails and the length direction of the correction rails are both perpendicular to the axis of the fixed disk. The clamping rails are preferably four in number and arranged in a cross, and the correction rails are preferably four in number and arranged in a cross. The clamping rails and the correction rails are arranged at intervals, and the angle between the connected clamping rails and the correction rails is 45°. The clamping rails and the correction rails are both in the same plane, and the length directions of the clamping rails and the correction rails are perpendicular to the axis of the fixed disk.

[0009] The clamping track has a clamping slot along the length direction, a clamp is slidably connected in the clamping slot, the correction track has a correction slot along the length direction, a correction ruler is slidably connected in the correction slot, and the correction slot is provided with scales along the length direction. The clamp is slidably connected in the clamping slot, the clamp is used to clamp the pipe wall at the end of the pipe, the correction slot is slidably connected to the correction ruler, and the correction ruler is used to correct the verticality and coaxiality of the pipe.

[0010] The clamp comprises a slide block and a tensioner, wherein the tensioner is screwed on the slide block. The operator tightens or loosens the clamp and the pipe wall by rotating the handle of the tensioner.

[0011] The calibration ruler has a mutually perpendicular fitting edge and a vertical edge, wherein the vertical edge is perpendicular to the axis of the fixed disk and parallel to the length direction of the calibration track. The vertical edge of the calibration ruler is close to the axis of the fixed disk, and during the calibration operation, the verticality of the pipe is judged by the fitting degree between the vertical edge of each calibration ruler and the pipe.

[0012] The base is connected to the first platform via a plurality of height-adjusting bolts, and the base is provided with sliding wheels.

[0013] The end surface of the first platform away from the base is provided with a slide rail, and the length direction of the slide rail is perpendicular to the axis of the transmission shaft. The slide rail enables the first platform and the second platform to slide horizontally.

[0014] The second platform includes a horizontal adjustment seat and a hollow frame, the hollow frame and the horizontal adjustment seat are connected by a rotating bolt and a clamping bolt, and the horizontal adjustment seat is slidably connected to the slide rail. The vertical direction of the rotating bolt is perpendicular to the axis of the transmission shaft, and the hollow frame and the horizontal adjustment seat are relatively rotated with the rotating bolt as the axis.

[0015] It also includes a lifting auxiliary device, which includes a telescopic frame assembly, the telescopic frame assembly has a telescopic cylinder, the telescopic frame assembly is fixedly connected to the hosting wheel assembly, the hosting wheel assembly includes a first hosting wheel and a second hosting wheel arranged in parallel, and the first hosting wheel and the second hosting wheel are both provided with a rotating motor. The lifting auxiliary device is the main device for carrying pipes, which is adapted to the length of the clamped pipes, and the height is adjusted by the telescopic frame assembly, and the pipes are placed on the hosting wheel assembly, between the first hosting wheel and the second hosting wheel.

[0016] The managed wheel assembly includes an adjustment rail, a lead screw is inserted in the adjustment rail, the lead screw is connected to a rocker, the first managed wheel and the second managed wheel are threadedly connected to the adjustment lead screw, a scale is provided on the side of the rail, and the first managed wheel is provided with a cursor. The operator rotates the lead screw through the remote control lever, and the first managed wheel and the second managed wheel move relative to the adjustment rail through the threaded transmission of the lead screw; the first managed wheel and the second managed wheel are threadedly connected to the lead screw in opposite directions, and the first managed wheel and the second managed wheel can be moved closer or farther from each other by rotating the rocker, and the adjustment of multiple lifting auxiliary devices is convenient according to the cursor of the first managed wheel and the scale of the adjustment rail.

[0017] Beneficial effects of this application: 1. Compared with machine tool type pipe processing equipment, the pipe clamping device in this application has a relatively simple structure, is easy to manufacture and has low cost, is easy to move, and is suitable for pipe processing and cutting at the construction site; 2. It has the function of centering the pipe, can be adjusted with multiple degrees of freedom, is flexible to use and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the split multi-degree-of-freedom large-diameter pipe clamping device in Example 1.

[0019] Figure 2 for Figure 1 Right side view of the structure shown.

[0020] Figure 3 It is a structural schematic diagram of the lifting auxiliary device.

[0021] Figure 4 A top view of the management wheel assembly.

[0022] Figure 5 This is a schematic diagram of the structure of the split multi-degree-of-freedom large-diameter pipe clamping device in Example 1 for clamping a pipe.

[0023] Figure 6 This is a schematic diagram of the structure of the split multi-degree-of-freedom large-diameter pipe clamping device in Example 2.

[0024] Figure Number: 1. Load-bearing components; 2. Clamping components; 3. Lifting auxiliary device; 4. Pipes; 11. Base; 12. First platform; 13. Second platform; 21. Clamping track; 22. Correction track; 23. Clamp; 24. Correction ruler; 25. Transmission shaft; 26. Fixed plate; 31. Telescopic frame assembly; 32. Host wheel assembly; 111. Sliding wheel; 112. Height adjustment bolt; 121. Slide rail; 131. Hollow frame; 132. Horizontal adjustment seat; 133. Rotating bolt; 134. Pressing bolt; 135. Connecting seat; 136. Driving motor; 211. Clamping slide groove; 221. Correction slide groove; 231. Sliding block; 232. Tensioner; 311. Telescopic cylinder; 321. First managing wheel; 322. Second managing wheel; 323. Rotating motor; 324. Adjusting slide rail; 325. Lead screw; 326. Rocker; 327. Vernier. DETAILED DESCRIPTION

[0025] The following is an explanation of the implementation of the present application by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification.

[0026] The present application provides a split-type multi-degree-of-freedom large-diameter pipe clamping device. The preferred embodiments of the split-type multi-degree-of-freedom large-diameter pipe clamping device are described below in conjunction with the accompanying drawings.

[0027] Embodiment 1 The current machine tool-type pipe processing equipment is large in size and is not suitable for pipe processing and cutting at construction sites. At the same time, the existing method of using a centering wheel to center and cut pipes has poor accuracy and potential safety hazards. This embodiment proposes a split multi-degree-of-freedom large-diameter pipe clamping device, which has a relatively simple structure, is easy to manufacture and has low cost, is easy to move, is suitable for pipe processing and cutting at construction sites, has a pipe centering function, can be adjusted with multiple degrees of freedom, is flexible to use and is easy to operate. Figure 1 and Figure 2 As shown, the split type multi-degree-of-freedom large-diameter pipe clamping device includes a bearing assembly 1, and the bearing assembly 1 includes a base 11. The base 11 is provided with a first platform 12, and the first platform 12 is slidably connected to a second platform 13, and the second platform 13 is provided with a driving motor 136 and a connecting seat 135; the bearing assembly 1 is the main part of the split type multi-degree-of-freedom large-diameter pipe clamping device, and has the functions of supporting, adjusting height and adjusting multiple degrees of freedom; the base 11 is formed by welding 4 square steel pipes to form a square, and a sliding wheel 111 is respectively provided at the four corners of the square, and the four pulleys all have a fixing function.

[0028] The first platform 12 includes a steel plate as a main body, and two slide rails 121 arranged on one side of the steel plate. The two slide rails 121 are arranged in parallel on two opposite sides of the steel plate. The first platform 12 is connected to the base 11 through height adjustment bolts 112 and nuts. The height between the first platform 12 and the base 11 and the horizontal angle between the first platform 12 and the base 11 can be adjusted by bolts and nuts.

[0029] like Figure 1As shown, the second platform 13 is slidably connected with the second platform 13, and the second platform 13 includes a hollow frame 131 welded by 12 square steel pipes and two steel plates, and a horizontal adjustment seat 132. The horizontal adjustment seat 132 and the hollow frame 131 are connected by a rotating bolt 133 and a clamping bolt 134; a connecting plate connected to the rotating bolt 133 is provided on the contact end surface between the hollow frame 131 and the horizontal adjustment seat 132, and the connecting plate connected to the rotating bolt 133 is located on the outer side of the contact end surface of the hollow frame 131 and the horizontal adjustment seat 132. Two arc holes are provided on the contact end surface of the hollow frame 131 and the horizontal adjustment seat 132, and the center of the curvature radius of the two arc holes is the center of the hole where the rotating bolt 133 is located. The clamping bolt 134 is inserted into the arc-shaped hole where the end face of the hollow frame 131 and the horizontal adjustment seat 132 overlap. The hollow frame 131 can adjust its relative position with the horizontal adjustment seat 132 around the rotating bolt 133 and be fixed by the clamping bolt 134; the other side where the horizontal adjustment seat 132 is connected to the hollow frame 131 is provided with a guide block of the slide rail 121, and the guide block of the slide rail 121 is arranged corresponding to the two slide rails 121 and is sleeved on the corresponding slide rails 121; a connecting seat 135 and a driving motor 136 are provided on the steel plate away from the first platform 12, and the connecting seat 135 is cylindrical and fixedly connected to the second platform 13 through two fixing blocks, and its axial direction is perpendicular to the length direction of the slide rail 121, and the connecting seat 135 is close to the edge of the end face.

[0030] like Figure 1 and Figure 2As shown, the split type multi-degree-of-freedom large-diameter pipe clamping device also includes a clamping assembly 2, the clamping assembly 2 includes a transmission shaft 25, the transmission shaft 25 is inserted into the connecting seat 135, the transmission shaft 25 is connected to the driving motor 136, and also includes a fixed disk 26 coaxially arranged and fixedly connected to the transmission shaft 25, 4 clamping tracks 21 and 4 correction tracks 22 are evenly distributed on the fixed disk 26, the clamping tracks 21 and the correction tracks 22 are arranged at intervals, the clamping tracks 21 are arranged in a cross shape, and the correction tracks 22 are arranged in a cross shape; the transmission shaft 25 is inserted into the connecting seat 135, and a shaft sleeve is arranged between the connecting seat 135, one end of the transmission shaft 25 is connected to the driving motor 136, and the driving motor 136 is the transmission shaft 25. Provide rotational power; the other end of the transmission shaft 25 connected to the drive motor 136 is fixedly connected to a fixed disk 26, which is disc-shaped and arranged coaxially with the transmission shaft 25; a plurality of clamping rails 21 and correction rails 22 are arranged on the side of the fixed disk 26 away from the transmission shaft 25, and the clamping rails 21 and the correction rails 22 are both composed of square steel pipes and rail parts arranged in the length direction of the square steel pipes; the clamping rails 21 and the correction rails 22 are alternately arranged, and the length direction of the clamping rails 21 and the length direction of the correction rails 22 are both perpendicular to the axis of the fixed disk 26, that is, the clamping rails 21 and the correction rails 22 are fixedly connected on the fixed disk 26 and the length directions both point to the center of the fixed disk 26.

[0031] like Figure 1 As shown, the clamping track 21 has a clamping slot 211 along the length direction, and a clamp 23 is slidably connected in the clamping slot 211. The correction track 22 has a correction slot 221 along the length direction, and a correction ruler 24 is slidably connected in the correction slot 221; the correction slot 221 is provided with scales along the length, and the centering of the pipe 4 is achieved according to the scales on the four correction slots 221; several clamps 23 are used to fix and clamp the large-diameter pipe 4, and the correction ruler 24 is used to determine the verticality between the pipe 4 and the fixed plate; the clamp 23 includes a sliding Block 231 and tensioner 232, tensioner 232 is screwed on slider 231, by manually rotating the handle of tensioner 232, the tensioning end of tensioner 232 is brought close to slider 231 to clamp the pipe 4; the correction ruler 24 has mutually perpendicular fitting edges and vertical edges, the vertical edge is perpendicular to the axis of fixed disk 26, the fitting edge is parallel to the length direction of correction track 22, and the vertical edge of correction ruler 24 is close to the center of fixed disk 26; the clamp 23 and correction ruler 24 can be removed from the clamping track 21 and correction track 22 respectively, which is convenient for replacement and maintenance.

[0032] like Figure 3 and Figure 4As shown, the split type multi-degree-of-freedom large-diameter pipe clamping device includes several lifting auxiliary devices 3, which are used to lift the main part of the large-diameter pipe 4 and provide a certain rotational power as the load-bearing part in the clamping process of the pipe 4; the lifting auxiliary device 3 includes a telescopic frame assembly 31, and the telescopic frame assembly 31 is fixedly connected to the hosting wheel assembly 32; the hosting wheel assembly 32 includes an adjusting slide rail 324, and a lead screw 325 is passed through the adjusting slide rail 324. A rocker 326 is arranged at one end of the adjusting slide rail 324, and the rocker 326 is connected to the lead screw 325. The operator rotates the lead screw 325 by shaking the rocker 326; the hosting wheel assembly 3 2 also includes a first hosting wheel 321 and a second hosting wheel 322 arranged on the adjusting slide rail 324. The first hosting wheel 321 and the second hosting wheel 322 are both composed of a sliding base 11 connected to a lead screw 325 and a pulley. The first hosting wheel 321 and the second hosting wheel 322 are identical in structure, except that the installation directions of the sliding base 11 are different, that is, the directions of the threads of the first hosting wheel 321 and the second hosting wheel 322 connected to the lead screw 325 are opposite. Another installation method is to make the installation directions of the sliding base 11 of the first hosting wheel 321 and the second hosting wheel 322 consistent, and divide the lead screw 325 into two opposite directions. The first and second management wheels 321 and 322 are connected to each other respectively, and a support mechanism is fixedly connected between the two sections of the lead screw 325 and arranged in the adjustment track; the first management wheel 321 and the second management wheel 322 are arranged in parallel with each other, and the distance between the first management wheel 321 and the second management wheel 322 can be adjusted by a rocker 326. The operator shakes the rocker 326, and the lead screw 325 drives the first management wheel 321 and the second management wheel 322 to move closer to or away from each other, which can be appropriately adjusted according to the outer diameter of the pipe 4; the first management wheel 321 and the second management wheel 322 are both provided with a rotating motor 323 for driving the management wheel to rotate; in the adjustment slide rail 3 There is a scale on the side of 24, and a cursor 327 corresponding to the scale of the adjusting slide rail 324 is provided on the side of the first supporting wheel 321, so as to unify the spacing between the first supporting wheels 321 and the second supporting wheels 322 in most cases where the lifting auxiliary device is used; the telescopic frame assembly 31 is composed of a pair of folding frames with the same structure and arranged opposite to each other, and a connecting rod connected between the folding frames; there are two bearing plates at both ends of the telescopic frame assembly 31, one end bearing plate serves as a bottom plate, and the other end bearing plate is provided with a supporting wheel assembly 32; a telescopic cylinder 311 is provided on the telescopic frame assembly 31, which is used to drive the telescopic frame assembly 31 to expand and retract.

[0033] like Figure 5 As shown, this embodiment takes the clamping of a large-diameter and long-length pipe 4 as an example, and the following is a method for clamping the pipe 4: According to the actual height of the axis of the fixed plate 26 of the split-type multi-degree-of-freedom large-diameter pipe clamping device and the size of the large-diameter pipe 4 to be processed, the lifting height of the lifting auxiliary device 3 is calculated, and each lifting auxiliary device 3 is evenly arranged along the length direction of the pipe 4, and the spacing between the first hosting wheel 321 and the second hosting wheel 322 of each lifting auxiliary mechanism is unified; the pipe 4 is hoisted onto several arranged lifting auxiliary devices 3 to ensure that the hosting wheel can rotate smoothly; the split-type multi-degree-of-freedom large-diameter pipe clamping device is moved, and the plane where the clamping track 21 is located is aligned with one end face of the pipe 4, and the jaw part of each clamper 23 is opened to a width greater than the thickness of the pipe wall of the pipe 4, and the inner jaw is located on one side of the inner wall of the pipe 4. The clamper 23 is moved so that the inner jaw is against the inner side of the pipe wall of the pipe 4, and the outer jaw is retracted to touch the pipe wall of the pipe 4; each correction ruler 24 is moved, and the vertical edge of the correction ruler 24 is fitted with the pipe wall. According to the fit between the two relative correction scales 24 and the pipe wall, the lifting height of the lifting auxiliary device 3 and the position of the split multi-freedom large-diameter pipe clamping device are adjusted to ensure that the vertical sides of each correction scale 24 are completely fitted with the pipe wall; according to the scale degrees of the relatively set correction scales 24, the position of the split multi-freedom large-diameter pipe clamping device is adjusted to ensure that the degrees of the relative correction scales 24 are the same; the relative position between the hollow frame 131 and the horizontal adjustment seat 132 is adjusted as needed, and the rotating bolt 133 and the clamping bolt 134 are fixed; the height adjustment bolt 112 is adjusted as needed, and the horizontal angle of the central axis of the pipe 4 is adjusted through the height adjustment bolts 112 at the four corners of the first platform 12; the sliding wheel 111 is fixed to clamp each clamp 23 to the pipe wall of the pipe 4 to complete the clamping; the drive motor 136 is started to drive the pipe 4 to rotate axially to cut the pipe 4.

[0034] The split-type multi-degree-of-freedom large-diameter pipe clamping device in this embodiment is simpler in structure, easier to manufacture and has a low overall cost than machine tool-type pipe processing equipment, and can meet the requirements of pipe processing and cutting at the construction site; compared with the method of relying solely on the centering of the management wheel and using cutting equipment or manual cutting, the split-type multi-degree-of-freedom large-diameter pipe clamping device in this embodiment is more accurately centered, ensuring the requirements of pipe processing and cutting, and avoiding pipe cutting accidents caused by inaccurate centering, and even construction hazards.

[0035] Embodiment 2 In the construction project, there is a tight schedule. In order to improve the efficiency of pipe processing, this embodiment simplifies the split multi-freedom large-diameter pipe clamping device, which is more suitable for clamping large-diameter and short-length pipes. In combination with the split multi-freedom large-diameter pipe clamping device in the first embodiment, the effect of coordinated processing of multiple pipe clamping devices is achieved. Figure 6As shown, a split large-diameter multi-degree-of-freedom pipe 4 clamping device includes a bearing assembly 1, the bearing assembly 1 includes a base 11, the base 11 is connected to the second platform 13 through four height adjustment bolts 112, and the second platform 13 is provided with a driving motor 136 and a connecting seat 135; the clamping assembly 2, the clamping assembly 2 includes a transmission shaft 25, the transmission shaft 25 is passed through the connecting seat 135, the transmission shaft 25 is connected to the driving motor 136, and also includes a fixed disk 26 coaxially arranged and fixedly connected to the transmission shaft 25, and a plurality of clamping rails 21 and correction rails 22 are evenly distributed on the fixed disk 26.

[0036] The bearing assembly 1 is the bearing part, and the bottom surface of the base 11 is provided with four sliding wheels 111, and the sliding wheels 111 are universal wheels; the second platform 13 includes a horizontal adjustment seat 132 and a hollow frame 131, and the hollow frame 131 is fixedly connected to the horizontal adjustment seat 132, and the horizontal adjustment seat 132 is connected to the base 11 through four height adjustment bolts 112. The operator can adjust the horizontal angle between the second platform 13 and the base 11 through the height adjustment bolts 112, and then adjust the pitch attitude of the clamping assembly 2; the transmission shaft 25 is passed through the connecting seat 135 and connected to the driving motor 136, and the driving motor 136 provides the rotation power for the clamping assembly 2; the transmission shaft 25 is connected to the fixed plate 26, and a number of clamping rails 21 and correction rails 22 are evenly distributed on the fixed plate 26, the clamping rail 21 is used to clamp the pipe 4, and the correction rail 22 is used to calibrate the verticality and coaxiality of the pipe 4.

[0037] The clamping rails 21 and the correction rails 22 are arranged alternately, and the length direction of the clamping rails 21 and the length direction of the correction rails 22 are both perpendicular to the axis of the fixed disk 26. There are four clamping rails 21 arranged in a cross shape, and there are four correction rails 22 arranged in a cross shape. The clamping rails 21 and the correction rails 22 are arranged at intervals, and the angle between the connected clamping rails 21 and the correction rails 22 is 45°. The clamping rails 21 and the correction rails 22 are both in the same plane, and the length directions of the clamping rails 21 and the correction rails 22 are perpendicular to the axis of the fixed disk 26.

[0038] The clamping track 21 has a clamping slot 211 along the length direction, and a clamper 23 is slidably connected in the clamping slot 211. The correction track 22 has a correction slot 221 along the length direction, and a correction ruler 24 is slidably connected in the correction slot 221. The correction slot 221 is provided with scales along the length direction. The clamper 23 is slidably connected in the clamping slot 211, and the clamper 23 is used to clamp the pipe wall at the end of the pipe 4. The correction slot 221 is slidably connected to the correction ruler 24, and the correction ruler 24 is used to correct the verticality and coaxiality of the pipe 4. The clamper 23 includes a slider 231 and a tensioner 232, and the tensioner 232 is screwed on the slider 231. The operator tightens or loosens the clamper 23 and the pipe wall of the pipe 4 by turning the handle of the tensioner 232.

[0039] The calibration ruler 24 has a mutually perpendicular fitting edge and a vertical edge, the vertical edge is perpendicular to the axis of the fixed plate 26, and the fitting edge is parallel to the length direction of the calibration track 22. The vertical edge of the calibration ruler 24 is close to the axis of the fixed plate 26. During the calibration operation, the verticality of the pipe 4 is judged by the fitting degree between the vertical edge of each calibration ruler 24 and the pipe 4.

[0040] like Figure 3 and Figure 4 As shown, it also includes a lifting auxiliary device 3, which includes a telescopic frame assembly 31, the telescopic frame assembly 31 has a telescopic cylinder 311, the telescopic frame assembly 31 is fixedly connected to the hosting wheel assembly 32, and there are two bearing plates at both ends of the telescopic frame assembly 31, one end of the bearing plate is used as a bottom plate, and the other end of the bearing plate is provided with a hosting wheel assembly 32; the hosting wheel assembly 32 includes a first hosting wheel 321 and a second hosting wheel 322 arranged in parallel, and the first hosting wheel 321 and the second hosting wheel 322 are both provided with a rotating motor 323. The lifting auxiliary device 3 is the main device for carrying the pipe 4, and is adapted to be set according to the length of the clamped pipe 4, and the height is adjusted through the telescopic frame assembly 31, and the pipe 4 is placed on the hosting wheel assembly 32, between the first hosting wheel 321 and the second hosting wheel 322.

[0041] The managed wheel assembly 32 includes an adjusting rail 324, a lead screw 325 is inserted in the adjusting rail 324, the lead screw 325 is connected to the rocker 326, the first managed wheel 321 and the second managed wheel 322 are threadedly connected to the adjusting lead screw 325, a scale is provided on the side of the rail 121, and the first managed wheel 321 is provided with a cursor 327. The operator rotates the lead screw 325 through the rocker, and the first managed wheel 321 and the second managed wheel 322 move relative to the adjusting rail 324 through the threaded transmission of the lead screw 325; the first managed wheel 321 and the second managed wheel 322 are both composed of a sliding base 11 connected to the lead screw 325 and a pulley, and the first managed wheel 321 and the second managed wheel 322 are the same in structure, the difference is that the installation direction of the sliding base 11 is different, that is, the thread direction of the first managed wheel 321 and the second managed wheel 322 connected to the lead screw 325 is opposite; another installation method is to install the sliding base 11 of the first managed wheel 321 and the second managed wheel 322 in the opposite direction. The screw 325 is consistent, divided into two sections in opposite directions and connected respectively, and a support mechanism is fixedly connected between the two sections of the screw 325 and arranged in the adjustment track; the first supporting wheel 321 and the second supporting wheel 322 are arranged in parallel with the axis, and the distance between the first supporting wheel 321 and the second supporting wheel 322 can be adjusted by the rocker 326. The operator shakes the rocker 326, and the screw 325 drives the first supporting wheel 321 and the second supporting wheel 322 to move closer to or away from each other, which can be appropriately adjusted according to the outer diameter of the pipe 4; the adjustment of multiple lifting auxiliary devices 3 is convenient according to the cursor 327 of the first supporting wheel 321 and the scale of the adjustment slide rail 324.

[0042] Compared with the first embodiment, this embodiment is simpler in structure and function, reduces the number of pipe centering operation steps, and is more suitable for pipes with large diameters and short lengths.

[0043] The above contents are preferred embodiments of the present application, which are used to illustrate the specific structure and functions of the present application. It should be pointed out that, without departing from the principles of the present application, ordinary technicians in this technical field can make anticipated improvements and modifications to the present application, and these improvements and modifications are also within the scope of protection of the present application.

Claims

1. A split type multi-degree-of-freedom large-diameter pipe clamping device, characterized in that: include: A bearing assembly, the bearing assembly comprising a base, the base being connected to a first platform, the first platform being slidably connected to a second platform, and the second platform being provided with a driving motor and a connecting seat; The clamping assembly includes a transmission shaft, the transmission shaft is passed through the connecting seat, the transmission shaft is connected to the driving motor, and also includes a fixed plate coaxially arranged and fixedly connected to the transmission shaft, and a plurality of clamping rails and correction rails are evenly distributed on the fixed plate.

2. A split type multi-degree-of-freedom large-diameter pipe clamping device according to claim 1, characterized in that: The clamping rails and the correction rails are arranged alternately, and the length directions of the clamping rails and the correction rails are both perpendicular to the axis of the fixed disk.

3. A split type multi-degree-of-freedom large-diameter pipe clamping device according to claim 2, characterized in that: The clamping rail has a clamping slot along the length direction, a clamp is slidably connected in the clamping slot, the correction rail has a correction slot along the length direction, a correction ruler is slidably connected in the correction slot, and the correction slot is provided with scales along the length direction.

4. A split type multi-degree-of-freedom large-diameter pipe clamping device according to claim 3, characterized in that: The clamp includes a slider and a tensioner, and the tensioner is screwed on the slider.

5. The split type multi-degree-of-freedom large-diameter pipe clamping device according to claim 3, characterized in that: The correction ruler has a mutually perpendicular fitting edge and a vertical edge, the vertical edge is perpendicular to the axis of the fixed disk, and the fitting edge is parallel to the length direction of the correction track.

6. The split type multi-degree-of-freedom large-diameter pipe clamping device according to claim 1, characterized in that: The base is connected to the first platform via a plurality of height-adjusting bolts, and the base is provided with sliding wheels.

7. The split type multi-degree-of-freedom large-diameter pipe clamping device according to claim 1, characterized in that: A slide rail is disposed on the end surface of the first platform away from the base, and the length direction of the slide rail is perpendicular to the axis of the transmission shaft.

8. The split type multi-degree-of-freedom large-diameter pipe clamping device according to claim 7, characterized in that: The second platform includes a horizontal adjustment seat and a hollow frame, the hollow frame and the horizontal adjustment seat are connected via a rotating bolt and a clamping bolt, and the horizontal adjustment seat is slidably connected to the slide rail.

9. A split type multi-degree-of-freedom large-diameter pipe clamping device according to any one of claims 1 to 8, characterized in that: It also includes a lifting auxiliary device, which includes a telescopic frame assembly, the telescopic frame assembly has a telescopic cylinder, the telescopic frame assembly is fixedly connected to a managed wheel assembly, the managed wheel assembly includes a first managed wheel and a second managed wheel arranged in parallel, and the first managed wheel and the second managed wheel are both provided with a rotating motor.

10. A split type multi-degree-of-freedom large-diameter pipe clamping device according to claim 9, characterized in that: The managed wheel assembly includes an adjusting slide rail, a lead screw is inserted into the adjusting slide rail, the lead screw is connected to a rocker, the first managed wheel and the second managed wheel are threadedly connected to the adjusting lead screw, a scale is provided on the side of the slide rail, and the first managed wheel is provided with a cursor.

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