Tube beam welding tool
By designing a pipe beam welding fixture with support and positioning mechanisms, the problem of not being able to support and position the end flanges of pipe fittings in the existing technology has been solved. This enables precise positioning and welding of pipe fittings and flanges, and is applicable to pipe fittings of different sizes, thus improving welding efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 湖北麦格智能装备有限公司
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-23
AI Technical Summary
Existing pipe beam welding fixtures cannot effectively support and position the flanges at the pipe ends, making them unsuitable for flange welding.
A pipe beam welding fixture including a support mechanism and a positioning mechanism was designed. The support mechanism consists of two detachable and fixedly connected support seats forming a support channel. The positioning mechanism uses a positioning seat and a connecting assembly to make the flange's central hole coaxial with the pipe fitting. The drive assembly and fastening assembly are used to achieve precise positioning and welding of the flange.
It achieves effective support and positioning for pipe fittings and flanges, is suitable for flange welding at the ends of pipe fittings, adapts to pipe fittings of different lengths and diameters, and improves welding accuracy and efficiency.
Smart Images

Figure CN224390318U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding auxiliary equipment technology, and in particular to a pipe beam welding fixture. Background Technology
[0002] Existing tubular beams such as Figure 1 As shown, the pipe beam 100 includes a pipe fitting 110 and two flanges 120. Each flange 120 includes an interconnected cover 121 and a plate 122. The cover 121 is a square structure, with its small end fitted onto the end of the pipe fitting 110. The plate 122 is a rectangular structure and is fixedly connected to the large end of the cover 121. The plate 122 has multiple mounting holes 1221. In the processing and production of the aforementioned large-diameter, long pipe beam, when welding the flanges to the pipe fitting ends, the covers of the two flanges are first fitted onto both ends of the pipe fitting, ensuring that the flange covers are positioned at the predetermined locations on the pipe fitting. Then, a welding machine is used to weld the connection between the flange covers and the pipe fitting. Generally, tooling is required to support and position the pipe fittings and the two flanges. Existing pipe beam welding tooling (such as a light passenger vehicle instrument pipe beam welder disclosed in application number 202010671520.0) can only support and position the pipe fittings, but cannot support and position the two flanges of the above structure, and is not suitable for use when welding flanges at the ends of pipe fittings. Utility Model Content
[0003] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a pipe beam welding fixture to solve the technical problem that the existing pipe beam welding fixture is not suitable for flange welding of pipe ends.
[0004] To achieve the above technical objectives, the present invention provides a pipe beam welding fixture, comprising:
[0005] A support mechanism comprising two support seats that are detachably and fixedly connected to form a columnar support channel for a pipe fitting to slide through.
[0006] The positioning mechanism includes two positioning seats and two connecting components. The two positioning seats are arranged opposite to each other on both sides of the support mechanism and can move along the axial direction of the support channel to move closer to or away from the support mechanism. The two connecting components are detachably connected to the plates of the two positioning seats and the two flanges, and the central holes on the two flanges are coaxial with the pipe fittings.
[0007] Furthermore, the two support seats are arranged one above the other, and each of the two support seats has a placement groove. Both placement grooves are semi-cylindrical structures. When the two support seats are detachably and fixedly connected, the two placement grooves form the support channel.
[0008] Furthermore, a positioning groove is provided on the side of the positioning seat near the support mechanism, the positioning groove corresponds to the support channel, and the plate of the flange is placed in the positioning groove.
[0009] Furthermore, one wall of the positioning groove forms an abutment surface, which corresponds to and is perpendicular to the support channel, and is used to abut against the flange plate.
[0010] Furthermore, the connecting assembly includes multiple connectors, each of which is detachably connected to the plate of the positioning seat and the flange.
[0011] Furthermore, the connector includes a bolt and two first nuts. The positioning seat has multiple positioning holes, each of which corresponds to a mounting hole on the flange plate. Each bolt passes through each positioning hole and mounting hole. The two first nuts are threaded onto both ends of the bolt and abut against the positioning seat and the flange plate respectively.
[0012] Furthermore, the positioning mechanism of the aforementioned pipe beam welding fixture also includes a driving component, which is connected to both of the positioning seats and is used to drive the two positioning seats to move closer to each other or further apart.
[0013] Furthermore, the drive assembly includes two bases, at least one guide rod, a lead screw, and a handwheel. The two bases are disposed opposite each other on both sides of the support mechanism. Each guide rod and the lead screw are parallel to the support channel. Both ends of each guide rod are fixedly connected to the corresponding base. Both ends of the lead screw are rotatably connected to the corresponding base. The lead screw has two threads of equal length and opposite directions. Each of the two positioning seats has at least one through hole and a screw hole. The two positioning seats are slidably fitted onto each guide rod through the through holes. The two positioning seats are fitted onto the lead screw through the screw holes and screwed onto the two threads. The handwheel is coaxially fixedly connected to one end of the lead screw and is used to drive the lead screw to rotate.
[0014] Furthermore, the positioning mechanism also includes at least two fastening components, each of which is detachably connected to the two positioning seats.
[0015] Furthermore, the fastening assembly includes a screw and a plurality of second nuts. The positioning seat has at least two fastening holes, and each fastening hole on the two positioning seats corresponds to the other. Each screw passes through the corresponding fastening holes on the two positioning seats. Each second nut is threaded onto the screw and abuts against the two sides of the two positioning seats respectively.
[0016] Compared with the prior art, the beneficial effects of this utility model include: In use, the pipe fitting is first placed on one of the support seats, and then the two support seats are detachably and fixedly connected. The two support seats can form a support channel, which can support and radially limit the pipe fitting. Then, the two connecting components are detachably connected one-to-one to the plates of the two positioning seats and the two flanges, and the central holes on the two flanges are coaxial with the pipe fitting. Then, the two positioning seats move closer to the support mechanism along the axial direction of the support channel, so that the covers of the two flanges are respectively fitted on both ends of the pipe fitting, and the covers of the two flanges are located at the preset positions of the pipe fitting. This pipe beam welding fixture can support and position the pipe fitting and the two flanges of this structure, and is suitable for use when welding flanges at the ends of pipe fittings. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of an existing tube beam;
[0018] Figure 2 This is a three-dimensional structural schematic diagram of a pipe beam welding fixture provided by this utility model;
[0019] Figure 3 This is a three-dimensional structural diagram of a pipe beam welding fixture provided by this utility model, omitting the pipe beam and the upper support base;
[0020] In the diagram: 100 - pipe beam, 110 - pipe fitting, 120 - flange, 121 - cover, 122 - plate, 1221 - mounting hole, 200 - support mechanism, 210 - support base, 211 - placement groove, 220 - support channel, 300 - positioning mechanism, 310 - positioning base, 311 - positioning groove, 3111 - abutment surface, 312 - positioning hole, 313 - observation port, 314 - fastening hole, 320 - drive assembly, 321 - base, 322 - guide rod, 323 - lead screw, 324 - handwheel, 330 - fastening assembly, 331 - screw, 332 - second nut. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0022] This utility model provides a pipe beam welding fixture, the structure of which is as follows: Figure 2 - Figure 3 As shown, the device includes a support mechanism 200 and a positioning mechanism 300. The support mechanism 200 includes two support seats 210, which are detachably and fixedly connected to form a columnar support channel 220 for the pipe fitting 110 to slide through. The positioning mechanism 300 includes two positioning seats 310 and two connecting components. The two positioning seats 310 are arranged opposite to each other on both sides of the support mechanism 200 and can move along the axial direction of the support channel 220 to move closer to or away from the support mechanism 200. The two connecting components are detachably connected one-to-one to the plates 122 of the two positioning seats 310 and the two flanges 120, and the central holes on the two flanges 120 are coaxial with the pipe fitting 110.
[0023] In use, first place the pipe fitting 110 on one of the support seats 210, then detachably and fixedly connect the two support seats 210. The two support seats 210 can form the support channel 220, thereby supporting and radially limiting the pipe fitting 110. Then, detachably connect the two positioning seats 310 and the plates 122 of the two flanges 120 one by one, and make the central holes on the two flanges 120 coaxial with the pipe fitting 110. Then, move the two positioning seats 310 along the axial direction of the support channel 220 towards the support mechanism 200, thereby making the two flanges 120... The covers 121 of the flanges 120 are respectively fitted onto both ends of the pipe fitting 110, ensuring that the covers 121 of the two flanges 120 are located at the preset positions of the pipe fitting 110. Then, a welding machine is used to weld the connection between the covers 121 of the flanges 120 and the pipe fitting 110. After the welding is completed, a pipe beam 100 is formed. The two support seats 210 are separated, and the plates 122 of the two flanges 120 are separated from the two positioning seats 310. The pipe beam 100 can then be removed. This pipe beam welding fixture can support and position the pipe fitting 110 and the two flanges 120 of this structure. It is suitable for use when welding the flanges 120 at the ends of the pipe fitting 110.
[0024] As a preferred embodiment, please refer to Figure 2 There are multiple support mechanisms 200, and each support mechanism 200 is arranged in a row at intervals. The number of support mechanisms 200 can be increased or decreased according to the actual length of the pipe fitting 110 so that the length of the support channel 220 matches the length of the pipe fitting 110.
[0025] As a preferred embodiment, please refer to Figure 2Two support bases 210 are arranged vertically, and each of the two support bases 210 has a placement groove 211. Both placement grooves 211 are semi-columnar structures. When the two support bases 210 are detachably and fixedly connected, the two placement grooves 211 form a support channel 220. The two semi-columnar placement grooves 211 can form a columnar support channel 220, which makes it easier to pass the pipe fitting 110 through the support channel 220.
[0026] In a preferred embodiment, the two support bases 210 are detachably fixed together by screws, making disassembly convenient.
[0027] As a preferred embodiment, please refer to Figure 2 and Figure 3 The positioning seat 310 has a positioning groove 311 on its side near the support mechanism 200. The positioning groove 311 corresponds to the support channel 220. The plate 122 of the flange 120 is placed in the positioning groove 311, so that the flange 120 can be initially positioned.
[0028] As a preferred embodiment, please refer to Figure 2 and Figure 3 One wall of the positioning groove 311 forms an abutment surface 3111, which corresponds to and is perpendicular to the support channel 220. The abutment surface 3111 is used to abut against the plate 122 of the flange 120. When the plate 122 of the flange 120 abuts against the abutment surface 3111, the plate 122 of the flange 120 will be perpendicular to the support channel 220, thereby making the axis of the central hole of the flange 120 parallel to the support channel 220.
[0029] In a preferred embodiment, the connection assembly includes multiple connectors, each of which is detachably connected to the positioning seat 310 and the plate 122 of the flange 120, thereby improving the connection strength.
[0030] In a preferred embodiment, the connector includes bolts and two first nuts. The positioning seat 310 has multiple positioning holes 312, each corresponding to a mounting hole 1221 on the flange plate 122. Each bolt passes through a corresponding positioning hole 312 and mounting hole 1221. The two first nuts are threaded onto both ends of the bolts and abut against the positioning seat 310 and the flange plate 122, respectively, thus securing the flange plate 122. 2. Place it in the positioning groove 311 and make the plate 122 of the flange 120 abut against the abutment surface 3111. At this time, each mounting hole 1221 on the plate 122 of the flange 120 corresponds to each positioning hole 312. Each bolt passes through each positioning hole 312 and mounting hole 1221. The two first nuts are respectively threaded on both ends of the bolts and abut against the positioning seat 310 and the plate 122 of the flange 120, thereby positioning the flange 120.
[0031] As a preferred embodiment, please refer to Figure 3 Each of the positioning holes 312 is located on the abutment surface 3111. When the plate 122 of the flange 120 is placed in the positioning groove 311 and the plate 122 of the flange 120 abuts against the abutment surface 3111, each mounting hole 1221 on the plate 122 of the flange 120 corresponds one-to-one with each of the positioning holes 312.
[0032] As a preferred embodiment, please refer to Figure 2 and Figure 3 An observation port 313 is provided on the positioning seat 310. The observation port 313 corresponds to the support channel 220 and is located on the abutment surface 3111. The diameter of the observation port 313 is larger than the diameter of the support channel 220, so that the position of the plate 122 of the flange 120 on the pipe fitting can be seen through the observation port 313.
[0033] As a preferred embodiment, please refer to Figure 2 and Figure 3 The positioning mechanism 300 further includes a driving component 320, which is connected to both positioning seats 310 and is used to drive the two positioning seats 310 to move closer to each other or further away from each other. By operating the driving component 320, the driving component 320 can drive the two positioning seats 310 to move closer to each other or further away from each other along the axial direction of the support channel 220.
[0034] As a preferred embodiment, please refer to Figure 2 and Figure 3The drive assembly 320 includes two bases 321, at least one guide rod 322, a lead screw 323, and a handwheel 324. The two bases 321 are disposed opposite to each other on both sides of the support mechanism 200. Each guide rod 322 and the lead screw 323 are parallel to the support channel 220. Both ends of each guide rod 322 are fixedly connected to the corresponding base 321, and both ends of the lead screw 323 are rotatably connected to the corresponding base 321. The lead screw 323 is provided with two threads of equal length and opposite directions. Each of the two positioning seats 310 is provided with at least one through hole and a screw hole. Each of the two positioning seats 310 is slidably sleeved on each of the guide rods 322 through the corresponding through holes. Each of the two positioning seats 310 is sleeved on the lead screw 323 through the screw holes and screwed to the two threads respectively. The handwheel 324 is coaxially fixedly connected to one end of the lead screw 323 and is used to drive the lead screw 323 to rotate. By rotating the handwheel 324, the lead screw 323 can be driven to rotate. Since the two positioning seats 310 are restricted by the guide rods 322, when the lead screw 323 rotates in the forward or reverse direction, the two positioning seats 310 can move closer to each other or move away from each other.
[0035] As a preferred embodiment, please refer to Figure 2 and Figure 3 The positioning mechanism 300 further includes at least two fastening components 330, each of which is detachably connected to the two positioning seats 310. When the covers 121 of the flanges 120 on the two positioning seats 310 are fitted onto both ends of the pipe fitting 110, and the covers 121 of the two flanges 120 are located at the preset position of the pipe fitting 110, the fastening components 330 are detachably connected to the two positioning seats 310, thereby strengthening the connection between the two positioning seats 310.
[0036] As a preferred embodiment, please refer to Figure 2 and Figure 3 The fastening assembly 330 includes a screw 331 and a plurality of second nuts 332. The positioning seat 310 has at least two fastening holes 314. Each fastening hole 314 on the two positioning seats 310 corresponds to the other. Each screw 331 passes through the corresponding fastening holes 314 on the two positioning seats 310. Each second nut 332 is threaded onto the screw 331 and abuts against the two sides of the two positioning seats 310 respectively, thereby realizing the connection between the two positioning seats 310.
[0037] To better understand this utility model, the following is combined with... Figure 1 - Figure 3The working principle of the technical solution of this utility model will be described in detail below:
[0038] In use, first, the pipe fitting 110 is placed in the placement groove 211 of one of the support seats 210. Then, the two support seats 210 are detachably and fixedly connected. The two placement grooves 211 can form a support channel 220, which can support and radially limit the pipe fitting 110. Then, the plate 122 of the flange 120 is placed in the positioning groove 311, and the plate 122 of the flange 120 abuts against the abutment surface 3111. At this time, the central holes on the two flanges 120 are coaxial with the pipe fitting 110, and the mounting holes 1221 on the plate 122 of the flange 120 correspond one-to-one with the positioning holes 312. The bolts are passed through the positioning holes 312 and mounting holes 1221 one-to-one. The two first nuts are threaded onto the two ends of the bolts and abut against the positioning seat 310 and the plate 122 of the flange 120, respectively, so as to fix the flange 120. By rotating the handwheel 324 in the forward direction, the lead screw 323 can be driven to rotate. Since the two positioning seats 310 are restricted by the guide rods 322, when the lead screw 323 rotates in the forward direction, the two positioning seats 310 can move closer to each other, so that the covers 121 of the two flanges 120 are respectively fitted onto the two ends of the pipe fitting 110, and the covers 121 of the two flanges 120 are located at the preset position of the pipe fitting 110. Then, a welding machine is used to weld the connection between the covers 121 of the flanges 120 and the pipe fitting 110. After the welding is completed, a pipe beam 100 is formed. Separate the two support seats 210 and the plates 122 of the two flanges 120 from the two positioning seats 310, and the pipe beam 100 can be taken out. This pipe beam welding fixture can support and position the pipe fitting 110 and the two flanges 120 of this structure. It is suitable for use when welding the flanges 120 at the ends of the pipe fitting 110.
[0039] The pipe beam welding fixture provided by this utility model has the following beneficial effects:
[0040] (1) Place the plate 122 of the flange 120 into the positioning groove 311 and make the plate 122 of the flange 120 abut against the contact surface 3111 to achieve the pre-positioning of the flange 120. At this time, the central holes on the two flanges 120 are coaxial with the pipe fitting 110, and each mounting hole 1221 on the plate 122 of the flange 120 corresponds to each of the positioning holes 312.
[0041] (2) This pipe beam welding fixture can support and position pipe fittings 110 and flanges 120 with the same diameter but different lengths because the distance between the two positioning seats 310 is adjustable.
[0042] (3) This pipe beam welding fixture can support and position the pipe fitting 110 and the two flanges 120 of this structure. It is suitable for use when welding the flanges 120 at the end of the pipe fitting 110.
[0043] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.
Claims
1. A tube beam welding fixture, characterized by, include: A support mechanism comprising two support seats that are detachably and fixedly connected to form a columnar support channel for a pipe fitting to slide through. The positioning mechanism includes two positioning seats and two connecting components. The two positioning seats are arranged opposite to each other on both sides of the support mechanism and can move along the axial direction of the support channel to move closer to or away from the support mechanism. The two connecting components are detachably connected to the plates of the two positioning seats and the two flanges, and the central holes on the two flanges are coaxial with the pipe fittings.
2. The tube beam welding tooling of claim 1, wherein, The two support bases are arranged one above the other, and each of the two support bases has a placement groove. Both placement grooves are semi-cylindrical structures. When the two support bases are detachably and fixedly connected, the two placement grooves form the support channel.
3. The tube beam welding tooling of claim 1, wherein, A positioning groove is provided on the side of the positioning seat near the support mechanism. The positioning groove corresponds to the support channel. The plate of the flange is placed in the positioning groove.
4. The tube beam welding tooling of claim 3, wherein, One wall of the positioning groove forms an abutment surface, which corresponds to and is perpendicular to the support channel. The abutment surface is used to abut against the flange plate.
5. The tube beam welding tooling of claim 1, wherein, The connecting assembly includes multiple connectors, each of which can be detachably connected to the plate of the positioning seat and the flange.
6. The tube beam welding tooling of claim 5, wherein, The connector includes a bolt and two first nuts. The positioning seat has multiple positioning holes, each of which corresponds to a mounting hole on the flange plate. Each bolt passes through each positioning hole and mounting hole. The two first nuts are threaded onto both ends of the bolt and abut against the positioning seat and the flange plate, respectively.
7. The tube beam welding tooling of claim 1, wherein, The positioning mechanism further includes a driving component, which is connected to both positioning seats and is used to drive the two positioning seats to move closer to each other or further apart.
8. The tube beam welding tooling of claim 7, wherein, The drive assembly includes two bases, at least one guide rod, a lead screw, and a handwheel. The two bases are arranged opposite each other on both sides of the support mechanism. Each guide rod and the lead screw are parallel to the support channel. Both ends of each guide rod are fixedly connected to the corresponding base. Both ends of the lead screw are rotatably connected to the corresponding base. The lead screw has two threads of equal length and opposite directions. Each of the two positioning seats has at least one through hole and a screw hole. The two positioning seats are slidably fitted onto each guide rod through the through holes. The two positioning seats are fitted onto the lead screw through the screw holes and screwed onto the two threads. The handwheel is coaxially fixedly connected to one end of the lead screw and is used to drive the lead screw to rotate.
9. The tube beam welding tooling of claim 1, wherein, The positioning mechanism also includes at least two fastening components, each of which can be detachably connected to the two positioning seats.
10. The tube beam welding tooling of claim 9, wherein, The fastening assembly includes a screw and a plurality of second nuts. The positioning seat has at least two fastening holes, and each fastening hole on the two positioning seats corresponds to the other. Each screw passes through the corresponding fastening holes on the two positioning seats. Each second nut is threaded onto the screw and abuts against the two sides of the two positioning seats respectively.