Feeding mechanism for pipe welding

Abstract

The utility model relates to a feeding mechanism for pipe welding. The feeding mechanism is provided with a working platform. A feeding device is arranged on the working platform, the feeding device comprises a feeding motor, a feeding bottom frame, a clamping assembly and a supporting assembly, the clamping assembly comprises a clamping motor and clamping supports, the clamping supports are oppositely arranged, and each clamping support comprises a clamping bottom plate, a clamping top plate and a plurality of clamping side plates; the supporting assembly comprises a supporting motor, a supporting shaft and a plurality of binding belts, one end of each binding belt is arranged on the supporting shaft between the adjacent clamping side plates in a winding mode, and the other end of each binding belt winds around the clamping top plate on the corresponding side and the clamping top plate on the other side and then is arranged on the supporting shaft on the other side in a winding mode; the binding belts rotate and adjust the pipe through rotation of the supporting shafts in the same direction, the binding belts lift the pipe through reverse rotation of the supporting shafts, and the clamping supports are driven by the clamping motors to clamp the pipe. The device is ingenious in structure, convenient and practical.

Description

Technical Field

[0001] The utility model relates to the field of pipe welding feeding, in particular to a feeding mechanism for pipe welding. Background Art

[0002] Pipe welding is a technical method of connecting pipes or pipe fittings into a whole through a welding process, which is widely used in industries such as petroleum, chemical industry, natural gas, shipbuilding, and electric power. Welding not only requires the strength and tightness of the weld seam, but also needs to consider factors such as the material, specification, shape, working pressure, temperature, and medium of the pipe. It is a job with high technical requirements and great difficulty.

[0003] In the prior art, for pipe welding, generally, the pipe is manually carried to the welding tooling, or the pipe is transported to the welding tooling by a hoist, and then the position of the weld seam is adjusted on the welding tooling. However, this feeding and adjusting method is time-consuming and laborious on the one hand, and on the other hand, it is necessary to manually adjust the position of the weld seam. The efficiency of manual adjustment is low, and the accuracy of weld seam adjustment cannot be guaranteed, which will greatly affect the quality of subsequent weld seam welding and is very inconvenient. Summary of the Invention

[0004] The purpose of the utility model is to provide a feeding mechanism for pipe welding, with a clever structure, which can realize the rapid and accurate adjustment of the weld seam on the pipe and facilitate the feeding of the pipe, and is convenient and practical.

[0005] The technical solution for achieving the purpose of the present utility model is as follows: a working platform of the present utility model; an feeding device capable of feeding pipes is provided on the working platform. The feeding device includes a feeding motor, a feeding bottom frame slidably arranged on the working platform driven by the feeding motor, clamping components oppositely arranged on the feeding bottom frame, and a supporting component arranged between each clamping component and capable of supporting the pipe. The clamping component includes a clamping motor fixed on the working platform and a clamping bracket slidably arranged on the feeding bottom frame driven by the clamping motor. Each clamping bracket is oppositely arranged. The clamping bracket includes a clamping bottom plate, a clamping top plate, and a plurality of clamping side plates evenly distributed between the clamping bottom plate and the clamping top plate along the feeding direction of the feeding bottom frame. Each clamping side plate on two oppositely arranged clamping brackets corresponds one by one. The supporting component includes a supporting motor fixed on each clamping bracket, a supporting shaft rotatably connected to each clamping bracket, and a plurality of straps arranged in parallel and used to connect each clamping bracket. The extending direction of the supporting shaft on each clamping bracket is parallel to the feeding direction of the feeding bottom frame. One end of the supporting shaft is fixed to the output end of the supporting motor, and the other end of the supporting shaft passes through each clamping side plate on the corresponding side and is rotatably connected to each clamping side plate. One end of the strap is wound around the supporting shaft between adjacent clamping side plates, and the other end of the strap bypasses the clamping top plate on the corresponding side and the clamping top plate on the other side and is wound around the supporting shaft on the other side. Each supporting shaft rotates in the same or opposite direction driven by each supporting motor. Each strap rotates and adjusts the pipe through the same-direction rotation of each supporting shaft, and each strap lifts the pipe through the reverse rotation of each supporting shaft. Each clamping bracket clamps the pipe driven by each clamping motor.

[0006] Further, the above-mentioned supporting component further includes a plurality of connecting strips connecting each strap. Each connecting strip is arranged parallel to the supporting shaft and is fixed to each strap through a locking member.

[0007] Further, each clamping side plate is provided with a clamping opening with a polygonal cross-section. The clamping openings on each clamping side plate on the same side form a clamping groove capable of pressing against the side of the pipe. The clamping grooves on each clamping bracket are oppositely arranged.

[0008] Further, parallel bottom slide rails are provided on the above-mentioned working platform. Each bottom slide rail is arranged parallel to the supporting shaft. A plurality of bottom sliders adapted to the bottom slide rails are provided at the bottom of the feeding bottom frame. The feeding motor is fixed on the feeding bottom frame. A reducer is provided at the output end of the feeding motor, and a transmission gear is provided at the output end of the reducer. A transmission rack parallel to the bottom slide rail is provided on the working platform. The feeding bottom frame is slidably connected to the working platform through the driving of the feeding motor on the transmission gear, the cooperation of each bottom slider and the bottom slide rail, and the transmission cooperation of each transmission gear and the transmission rack.

[0009] Furthermore, a driving assembly corresponding to each clamping bracket and capable of driving each clamping bracket to slide on the feeding bottom frame is provided on the feeding bottom frame. The driving assembly includes a speed reducer fixed on the clamping motor, a mounting seat fixed on the feeding bottom frame, a coupling rotatably arranged in the mounting seat, a driving lead screw rotatably arranged on the feeding bottom frame, and a lead screw nut fixed at the bottom of the clamping bracket and adapted to the driving lead screw. The output end of the speed reducer is connected to one end of the coupling, and the driving lead screw is connected to the other end of the coupling. Each clamping bracket is slidably connected to the feeding bottom frame through the driving of the driving lead screw by the clamping motor and the thread fit between the driving lead screw and the lead screw nut.

[0010] Furthermore, a limiting connecting plate with a "Ji" - shaped cross - section is also provided on the feeding bottom frame. The limiting connecting plate is arranged parallel to the driving lead screw. One end of the limiting connecting plate is fixed on the mounting seat on one side, and the other end of the limiting connecting plate passes through each clamping bracket and is fixed to the mounting seat on the other side.

[0011] The utility model has positive effects: (1) By providing a feeding device on the working platform, the two clamping components on the feeding bottom frame can clamp the pipe, and the pipe can be supported by the supporting components. The driving of each supporting shaft by each supporting motor, and the synchronous and co - directional driving of each supporting shaft by each supporting motor can drive the strap and the pipe on the strap to rotate, so as to adjust the weld on the pipe. The synchronous and opposite - directional driving of each supporting shaft by each supporting motor can adjust the height of the pipe, thus ensuring the welding position of the pipe. It effectively solves the problems of low feeding efficiency and poor weld position adjustment caused by manual feeding and adjustment in the prior art, greatly improves the feeding efficiency of the pipe and the positioning accuracy of the pipe, and at the same time lays a foundation for the accurate welding of the pipe in the later stage. The structure is ingenious, convenient and practical.

[0012] (2) By providing connecting strips on each strap and fixing them on the strap through locking parts, the utility model can not only ensure the stability of the connection between each strap, but also ensure the stability of the support for the pipe, which is practical and convenient.

[0013] (3) By providing clamping openings on each clamping side plate, and the clamping openings form clamping grooves, the utility model can achieve stable and firm pressing on the pipe, which is efficient and convenient.

[0014] (4) By providing a bottom slide rail on the working platform and a bottom slider on the feeding bottom frame, the feeding bottom frame ensures the smoothness and stability of the sliding of the feeding bottom frame through the cooperation of the bottom slide rail and the bottom slider. At the same time, through the cooperation of the transmission gear and the transmission rack, the accuracy of the pipe feeding is also ensured, which is convenient and practical.

[0015] (5) The clamping motor of the present utility model drives the driving lead screw to rotate. The cooperation between the driving lead screw and the lead screw nut ensures the smoothness of the clamping bracket during movement and the accuracy of the clamping bracket during movement, which is efficient and practical.

[0016] (6) The present utility model limits the outward movement of each clamping bracket by setting a limit connecting plate, which further ensures the safety of each clamping bracket during movement. At the same time, it also avoids collisions between the clamping bracket and the clamping motor, which is safe and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to specific embodiments and in conjunction with the drawings, where

[0018] Figure 1 is a schematic connection structure diagram of the clamping assembly and the working platform in the present utility model;

[0019] Figure 2 is Figure 1 an enlarged view of part A in

[0020] Figure 3 is a schematic connection structure diagram of the clamping assembly and the feeding bottom frame in the present utility model;

[0021] Figure 4 is a sectional view of the connection structure between the clamping bracket and the support assembly in the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] See Figures 1 to 4, the utility model has a working platform 1; an feeding device for feeding pipes is arranged on the working platform 1, the feeding device includes a feeding motor 2, a feeding bottom frame 4 slidably arranged on the working platform 1 driven by the feeding motor 2, a clamping assembly 3 oppositely arranged on the feeding bottom frame 4, and a supporting assembly 5 arranged between each clamping assembly 3 and capable of supporting the pipes. The clamping assembly 3 includes a clamping motor 31 fixed on the working platform 1 and a clamping bracket 32 slidably arranged on the feeding bottom frame 4 driven by the clamping motor 31. Each clamping bracket 32 is oppositely arranged. The clamping bracket 32 includes a clamping bottom plate 321, a clamping top plate 323, and a plurality of clamping side plates 322 evenly distributed between the clamping bottom plate 321 and the clamping top plate 323 along the feeding direction of the feeding bottom frame 4. Each clamping side plate 322 on two oppositely arranged clamping brackets 32 corresponds one by one. The supporting assembly 5 includes a supporting motor 51 fixed on each clamping bracket 32, a supporting shaft 52 rotatably connected to each clamping bracket 32, and a plurality of straps 53 arranged in parallel and used for connecting each clamping bracket 32. The extending direction of the supporting shaft 52 on each clamping bracket 32 is parallel to the feeding direction of the feeding bottom frame 4. One end of the supporting shaft 52 is fixed on the output end of the supporting motor 51, and the other end of the supporting shaft 52 passes through each clamping side plate 322 on the corresponding side and is rotatably connected to each clamping side plate 322. One end of the strap 53 is wound on the supporting shaft 52 between adjacent clamping side plates 322, the other end of the strap 53 bypasses the clamping top plate 323 on the corresponding side and the clamping top plate 323 on the other side and is wound on the supporting shaft 52 on the other side. Each supporting shaft 52 rotates in the same or opposite direction driven by each supporting motor 51. Each strap 53 adjusts the rotation of the pipe through the same-direction rotation of each supporting shaft 52, and each strap 53 lifts the pipe through the reverse rotation of each supporting shaft 52. Each clamping bracket 32 clamps the pipe driven by each clamping motor 31.

[0023] Buffer hammers 13 are oppositely arranged on the working platform 1. A buffer block 42 is fixedly arranged at the bottom of the feeding bottom frame 4. The feeding bottom frame 4 is buffered and limited during feeding or discharging by the pressing of the buffer block 42 against each buffer hammer 13.

[0024] The supporting assembly 5 further includes a plurality of connecting strips 54 connecting each strap 53. Each connecting strip 54 is arranged in parallel with the supporting shaft 52 and is fixed to each strap 53 through a locking member.

[0025] Each clamping side plate 322 is provided with a clamping opening 324 with a polygonal cross-section. The clamping openings 324 on each clamping side plate 322 on the same side form a clamping groove capable of pressing against the side of the pipe. The clamping grooves on each clamping bracket 32 are oppositely arranged.

[0026] The working platform 1 is provided with bottom slide rails 11 arranged in parallel, and each bottom slide rail 11 is arranged in parallel with the support shaft 52. The bottom of the feeding bottom frame 4 is provided with a plurality of bottom sliders 41 adapted to the bottom slide rails 11. The feeding motor 2 is fixed on the feeding bottom frame 4. The output end of the feeding motor 2 is provided with a reducer, and the output end of the reducer is provided with a transmission gear 21. The working platform 1 is provided with a transmission rack 12 arranged in parallel with the bottom slide rails 11. The feeding bottom frame 4 is slidably connected to the working platform 1 through the driving of the transmission gear 21 by the feeding motor 2, the cooperation of each bottom slider 41 and the bottom slide rails 11, and the transmission cooperation of each transmission gear 21 and the transmission rack 12.

[0027] The feeding bottom frame 4 is provided with a driving assembly 34 corresponding to each clamping bracket 32 and capable of driving each clamping bracket 32 to slide on the feeding bottom frame 4. The driving assembly 34 includes a reducer fixed on the clamping motor 31, a mounting seat 341 fixed on the feeding bottom frame 4, a coupling 342 rotatably arranged in the mounting seat 341, a driving lead screw 343 rotatably arranged on the feeding bottom frame 4, and a lead screw nut fixed at the bottom of the clamping bracket 32 and adapted to the driving lead screw 343. The output end of the reducer is connected to one end of the coupling 342, and the driving lead screw 343 is connected to the other end of the coupling 342. Each clamping bracket 32 is slidably connected to the feeding bottom frame 4 through the driving of the driving lead screw 343 by the clamping motor 31 and the thread engagement of the driving lead screw 343 and the lead screw nut.

[0028] The feeding bottom frame 4 is further provided with a limit connecting plate 35 with a "ji" - shaped cross - section. The limit connecting plate 35 is arranged in parallel with the driving lead screw 343. One end of the limit connecting plate 35 is fixed on the mounting seat 341 on one side, and the other end of the limit connecting plate 35 passes through each clamping bracket 32 and is fixed to the mounting seat 341 on the other side.

[0029] Working principle of the utility model: During the use of the utility model, first place the pipe on each of the parallel straps 53, and the placement direction of the pipe is perpendicular to each of the straps 53. Each of the straps 53 is fixed by each connecting strip 54. After the pipe is placed on the straps 53, each support motor 51 drives the support shaft 52. During the rotation of each support shaft 52, when each support shaft 52 rotates synchronously and in the same direction, it drives the pipe to rotate, thereby driving the adjustment of the weld position on the pipe. During the synchronous and co-directional rotation of each support shaft 52, it drives the height adjustment of the pipe, so as to be applicable to the positions of various different welds and pipes of different diameters. At the same time, the pipe can also be clamped by the driving of the support motor 51 on the support shaft 52 and the driving of the clamping motor 31 on the clamping bracket 32. The strap 53 and each clamping bracket 32 can clamp the pipe synchronously. Then, the clamped pipe is fed by the driving of the feeding motor 2 on the feeding bottom frame 4, effectively solving the adjustment of the pipe position and the adjustment of the weld position on the pipe brought about by manual feeding and adjustment in the prior art, thereby ensuring the high efficiency of subsequent weld welding. The structure is ingenious, convenient and efficient.

[0030] In the specific embodiments described above, the purpose, technical solutions and beneficial effects of the present utility model have been further described in detail. It should be understood that the above are only specific embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. Feeding mechanism for pipe welding, having a working platform; characterized in that: The working platform is provided with a feeding device for feeding pipes. The feeding device includes a feeding motor, a feeding bottom frame slidably arranged on the working platform driven by the feeding motor, clamping assemblies oppositely arranged on the feeding bottom frame, and a supporting assembly arranged between each clamping assembly and capable of supporting the pipes. The clamping assembly includes a clamping motor fixed on the working platform and a clamping bracket slidably arranged on the feeding bottom frame driven by the clamping motor. Each clamping bracket is oppositely arranged. The clamping bracket includes a clamping bottom plate, a clamping top plate, and a plurality of clamping side plates evenly distributed between the clamping bottom plate and the clamping top plate along the feeding direction of the feeding bottom frame. The clamping side plates on two oppositely arranged clamping brackets correspond to each other one by one. The supporting assembly includes a supporting motor fixed on each clamping bracket, a supporting shaft rotatably connected to each clamping bracket, and a plurality of straps arranged in parallel and used for connecting each clamping bracket. The extending direction of the supporting shaft on each clamping bracket is parallel to the feeding direction of the feeding bottom frame. One end of the supporting shaft is fixed to the output end of the supporting motor, and the other end of the supporting shaft penetrates through the corresponding clamping side plates and is rotatably connected to each clamping side plate. One end of the strap is wound around the supporting shaft between adjacent clamping side plates, the other end of the strap bypasses the clamping top plate on the corresponding side and the clamping top plate on the other side and is wound around the supporting shaft on the other side. Each supporting shaft rotates in the same or opposite direction driven by each supporting motor. Each strap rotates and adjusts the pipe through the same-direction rotation of each supporting shaft, and each strap lifts the pipe through the reverse rotation of each supporting shaft. Each clamping bracket clamps the pipe driven by each clamping motor.

2. The feeding mechanism for pipe welding according to claim 1, characterized in that: The supporting assembly further includes a plurality of connecting strips connecting each strap. Each connecting strip is arranged parallel to the supporting shaft and fixed to each strap through a locking member.

3. The feeding mechanism for pipe welding according to claim 2, characterized in that: Each clamping side plate is provided with a clamping opening with a polygonal cross-section. The clamping openings on the clamping side plates on the same side form a clamping groove capable of pressing against the side of the pipe. The clamping grooves on each clamping bracket are oppositely arranged.

4. The feeding mechanism for pipe welding according to claim 3, characterized in that: The working platform is provided with parallel bottom slide rails. Each bottom slide rail is arranged parallel to the supporting shaft. The bottom of the feeding bottom frame is provided with a plurality of bottom sliders adapted to the bottom slide rails. The feeding motor is fixed on the feeding bottom frame. The output end of the feeding motor is provided with a reducer. The output end of the reducer is provided with a transmission gear. The working platform is provided with a transmission rack arranged parallel to the bottom slide rail. The feeding bottom frame is slidably connected to the working platform through the driving of the feeding motor on the transmission gear, the cooperation of each bottom slider and the bottom slide rail, and the transmission cooperation of each transmission gear and the transmission rack.

5. The feeding mechanism for pipe welding according to claim 4, characterized in that: A driving assembly corresponding to each clamping bracket and capable of driving each clamping bracket to slide on the feeding bottom frame is provided on the feeding bottom frame. The driving assembly includes a speed reducer fixed on the clamping motor, a mounting seat fixed on the feeding bottom frame, a coupling rotatably arranged in the mounting seat, a driving lead screw rotatably arranged on the feeding bottom frame, and a lead screw nut fixed at the bottom of the clamping bracket and adapted to the driving lead screw. The output end of the speed reducer is connected to one end of the coupling, and the driving lead screw is connected to the other end of the coupling. Each clamping bracket is slidably connected to the feeding bottom frame through the driving of the driving lead screw by the clamping motor and the threaded engagement between the driving lead screw and the lead screw nut.

6. The feeding mechanism for pipe welding according to claim 5, wherein: A limit connecting plate with a "ji" - shaped cross - section is further provided on the feeding bottom frame. The limit connecting plate is arranged parallel to the driving lead screw. One end of the limit connecting plate is fixed on the mounting seat on one side, and the other end of the limit connecting plate passes through each clamping bracket and is fixed to the mounting seat on the other side.

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