A cylinder segment longitudinal seam welding device

Abstract

The application discloses a cylinder segment longitudinal seam welding device, which comprises a rack, a supporting assembly and a welding assembly. The supporting assembly comprises an inner supporting piece and an outer clamping piece which are installed on the rack. The inner supporting piece is used to support the inner wall of the cylinder segment, and the outer clamping piece is used to clamp the outer wall of the cylinder segment. The welding assembly comprises a sliding seat, a translation driving piece, a cutting piece and a welding piece. The sliding seat is slidably arranged on the rack along the axial direction of the cylinder segment. The translation driving piece drives the sliding seat to move relative to the rack. The cutting piece and the welding piece are both arranged on the sliding seat. The cutting piece is used to cut the joint end of the cylinder segment, and the welding piece is used to weld the longitudinal seam of the cylinder segment. The joint end of the cylinder segment can be cut by the cutting piece, so that the joint end of the cylinder segment becomes flat, and then the longitudinal seam of the cylinder segment can be welded by the welding piece. By using the cylinder segment longitudinal seam welding device, the joint end of the cylinder segment can be cut and trimmed before the longitudinal seam of the cylinder segment is welded, so that the welding quality of the longitudinal seam of the cylinder segment can be ensured.

Description

Technical Field

[0001] This invention relates to the field of rocket welding, and more specifically to a longitudinal seam welding device for rocket sections. Background Technology

[0002] The emergence of the current combination of horizontal cylinder welding and vertical friction stir welding has greatly improved the efficiency of cylinder welding.

[0003] Existing cylindrical section welding devices can be found in patent application number CN202111458263.3. Existing internal support equipment requires external workpiece positioning followed by internal support. While this provides fixation for the cylindrical section, allowing for subsequent welding of the joints, the joints are often uneven. Welding directly onto the joints without preparation will affect the final weld quality.

[0004] Therefore, how to avoid unevenness at the joint ends of the cylinder sections affecting the welding quality is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a longitudinal seam welding device for cylindrical sections, which solves the technical problem that unevenness at the joint ends of cylindrical sections affects the welding quality in the prior art.

[0006] To achieve the above-mentioned technical objectives, the technical solution of the present invention includes a longitudinal seam welding device for a cylinder section, comprising:

[0007] frame;

[0008] A support assembly includes an inner support member and an outer clamping member mounted on the frame, the inner support member supporting the inner wall of the cylindrical section and the outer clamping member clamping the outer wall of the cylindrical section.

[0009] The welding assembly includes a slide, a translation drive, a cutting component, and a welding component. The slide is slidably mounted on the frame along the axial direction of the cylinder segment. The translation drive drives the slide to move relative to the frame. The cutting component and the welding component are both mounted on the slide. The cutting component is used to cut the joint end of the cylinder segment, and the welding component is used to weld the longitudinal seam of the cylinder segment.

[0010] Preferably, the inner support member includes a support frame and a plurality of inner support telescopic parts. The support frame is mounted on the frame and has a plurality of mounting positions arranged circumferentially. The plurality of inner support telescopic parts are installed one-to-one with the plurality of mounting positions. The inner support telescopic parts have an outward support state that partially protrudes from the mounting position and a retracted state that retracts into the mounting position.

[0011] Preferably, the support frame has a plurality of cutting grooves, which are spaced apart between a plurality of mounting positions, and the cutting grooves are arranged along the axial direction of the cylindrical section.

[0012] Preferably, the inner support further includes a plurality of supporting telescopic parts, which are embedded in the plurality of cutting grooves in a corresponding manner. The supporting telescopic parts have a cut state that partially protrudes from the mounting position and a welded state that retracts into the mounting position.

[0013] Preferably, the welded component includes a welding adjustment part and a welding head. One end of the welding adjustment part is connected to the slide block, and the other end is connected to the welding head. The welding adjustment part can drive the welding head to move relative to the slide block in three-dimensional space, and can make the welding head stop at any position on its sliding trajectory.

[0014] Preferably, the cutting component includes a cutting adjustment part and a cutting head. One end of the cutting adjustment part is connected to the slide block, and the other end is connected to the cutting head. The cutting adjustment part can drive the cutting head to move relative to the slide block in three-dimensional space, and can make the cutting head stop at any position on its sliding trajectory.

[0015] Preferably, the outer clamp includes a plurality of clamping parts, the clamping parts are mounted on the frame, and the clamping parts have a clamping state that presses against the outer wall of the cylinder section, and a ready state that is ready to detach from the outer wall of the cylinder section.

[0016] Preferably, the inner support member can slide relative to the frame along the axial direction and can stop at any position on its sliding trajectory.

[0017] Preferably, the support assembly includes a rotation drive, the inner support is rotatably mounted on the frame, and the rotation drive is connected to the inner support to drive the inner support to rotate relative to the frame.

[0018] Preferably, one end of the inner support member has a transmission gear, and the rotation drive member includes a drive gear and a rotation motor. The drive gear meshes with the transmission gear, and the rotation motor drives the drive gear and causes the drive gear to rotate.

[0019] Compared with the prior art, the beneficial effects of the present invention include: firstly, the cylindrical segment to be welded is placed between the inner support and the outer clamp, and then the cylindrical segment is clamped by the inner support and the outer clamp. The slide is moved by a translation drive, and the joint end of the cylindrical segment can be cut by a cutting component, making the joint end of the cylindrical segment flat. Then, the longitudinal seam of the cylindrical segment can be welded using a welding component. Using the cylindrical segment longitudinal seam welding device provided by the present invention, the joint end of the cylindrical segment can be cut and trimmed before welding the longitudinal seam, thereby ensuring the welding quality of the cylindrical segment longitudinal seam. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the longitudinal seam welding device for the cylinder section according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the welding assembly structure according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the support component structure according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the rotation drive component structure according to an embodiment of the present invention;

[0024] Figure 5 This is a partial schematic diagram of section A in embodiment A of the present invention;

[0025] The components include: frame 100, support assembly 200, inner support 210, support frame 211, mounting position 2111, cutting groove 2112, inner support telescopic part 212, supporting telescopic part 213, transmission gear 214, outer clamp 220, clamping part 221, rotation drive 230, drive gear 231, rotation motor 232, welding assembly 300, slide 310, translation drive 320, cutting part 330, cutting adjustment part 331, cutting head 332, welded part 340, welding adjustment part 341, and welding head 342. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention 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 merely illustrative and not intended to limit the invention.

[0027] See also Figures 1 to 5 This invention provides a longitudinal seam welding device for a cylindrical section, which belongs to the field of rocket welding. The aforementioned longitudinal seam welding device is used to weld the longitudinal seam of a cylindrical section. By using this longitudinal seam welding device, the joint end of the cylindrical section can be cut and trimmed before welding the longitudinal seam, thereby ensuring the welding quality of the longitudinal seam of the cylindrical section.

[0028] This invention provides a longitudinal seam welding device for cylindrical sections, comprising a frame 100, a support assembly 200, and a welding assembly 300. The support assembly 200 includes an inner support member 210 and an outer clamping member 220 mounted on the frame 100. The inner support member 210 supports the inner wall of the cylindrical section, and the outer clamping member 220 clamps the outer wall of the cylindrical section. The welding assembly 300 includes a slide block 310, a translation drive member 320, a cutting member 330, and a welding member 340. The slide block 310 is slidably disposed on the frame 100 along the axial direction of the cylindrical section. The translation drive member 320 drives the slide block 310 to move relative to the frame 100. Both the cutting member 330 and the welding member 340 are mounted on the slide block 310. The cutting member 330 is used to cut the joint end of the cylindrical section, and the welding member 340 is used to weld the longitudinal seam of the cylindrical section.

[0029] In the above embodiment, the cylindrical segment to be welded is first placed between the inner support member 210 and the outer clamping member 220, and then the cylindrical segment is clamped by the inner support member 210 and the outer clamping member 220. The slide block 310 is moved by the translation drive member 320, and the seam end of the cylindrical segment can be cut by the cutting member 330 to make the seam end of the cylindrical segment flat. Then, the longitudinal seam of the cylindrical segment can be welded by the welding member 340. Using the cylindrical segment longitudinal seam welding device provided by this invention, the seam end of the cylindrical segment can be cut and trimmed before welding the longitudinal seam, thereby ensuring the welding quality of the cylindrical segment longitudinal seam.

[0030] In some preferred embodiments, the inner support member 210 includes a support frame 211 and a plurality of inner support telescopic parts 212. The support frame 211 is mounted on the frame 100 and has a plurality of mounting positions 2111 arranged circumferentially. The plurality of inner support telescopic parts 212 are installed one-to-one with the plurality of mounting positions 2111. The inner support telescopic parts 212 have an outward support state that partially protrudes from the mounting position 2111 and a retracted state that retracts into the mounting position 2111.

[0031] In the above embodiment, the inner support telescopic part 212 is adjusted to the retracted state so that the cylindrical section can be sleeved on the outer periphery of the inner support member 210. Then, the inner support telescopic part 212 is adjusted to the outward support state so that the inner support member 210 can support the cylindrical section from the inside.

[0032] In some preferred embodiments, the outer clamp 220 includes a plurality of clamping portions 221, which are mounted on the frame 100. Each clamping portion 221 has a clamping state that presses against the outer wall of the cylindrical section, and a ready state that is ready to disengage from the outer wall of the cylindrical section. Before the cylindrical section is fitted onto the inner support 210, the clamping portions 221 can be adjusted to the ready state to reserve space for placing the cylindrical section. After the cylindrical section is fitted onto the inner support 210, the clamping portions 221 can be adjusted to the clamping state. This allows the outer clamp 220 and the inner support 210 to cooperate and clamp the cylindrical section.

[0033] It should be emphasized that any implementation method that allows the inner support member 210 and the outer clamping member 220 to cooperate with each other to clamp the cylinder segment is feasible. In the above embodiments, the inner support telescopic part 212 and the clamping part 221 can both be hydraulic cylinders. By extending and retracting the piston rod of the hydraulic cylinder, the piston rod of the hydraulic cylinder can contact or disengage from the cylinder segment, thereby clamping and fixing the cylinder segment through the inner support member 210 and the outer clamping member 220, so as to facilitate the subsequent cutting and welding of the cylinder segment.

[0034] In some preferred embodiments, the support frame 211 has a plurality of cutting grooves 2112, which are spaced apart between a plurality of mounting positions 2111, and the cutting grooves 2112 are arranged along the axial direction of the cylindrical section. In the above embodiments, the cutting grooves 2112 are positioned directly opposite the joint of the cylindrical section to avoid damage to the support frame 211 from the high temperature at the weld during the welding process.

[0035] Based on the above embodiments, in some preferred embodiments, the inner support member 210 further includes a plurality of supporting telescopic portions 213, which are embedded in a plurality of cutting grooves 2112 in a corresponding manner. The supporting telescopic portions 213 have a welded state that partially protrudes from the mounting position 2111, and a cut state that retracts into the mounting position 2111.

[0036] In the above embodiments, since a stable clamping of the cylinder segment is required during the cutting and trimming of the joint end of the cylinder segment, the supporting telescopic part 213 can be adjusted to the cutting state during the cutting process, so that the supporting telescopic part 213 protrudes from the mounting position 2111, so as to support the joint end of the cylinder segment using the supporting telescopic part 213. During the welding process, the supporting telescopic part 213 can be adjusted to the welding state, so that the supporting telescopic part 213 is concealed in the mounting position 2111, avoiding damage to the support frame 211 from contact with the high temperature of the welding point.

[0037] In some preferred embodiments, the welding component 340 includes a welding adjustment part 341 and a welding head 342. One end of the welding adjustment part 341 is connected to the slide block 310, and the other end is connected to the welding head 342. The welding adjustment part 341 can drive the welding head 342 to move relative to the slide block 310 in three-dimensional space, and can make the welding head 342 stop at any position on its sliding trajectory.

[0038] Similar to the welded part 340, in some preferred embodiments, the cutting part 330 includes a cutting adjustment part 331 and a cutting head 332. One end of the cutting adjustment part 331 is connected to the slide 310, and the other end is connected to the cutting head 332. The cutting adjustment part 331 can drive the cutting head 332 to move relative to the slide 310 in three-dimensional space, and can make the cutting head 332 stop at any position on its sliding trajectory.

[0039] It should be emphasized that the implementation of the welding adjustment unit 341 and the cutting adjustment unit 331 is diverse. The welding adjustment unit 341 and the cutting adjustment unit 331 can be a robotic arm or a multi-degree-of-freedom moving platform. As long as the relative positions of the welding head 342 and the cutting head 332 and the mounting base can be adjusted, it is acceptable.

[0040] It is understandable that the specific implementation of the welding head 342 is diverse; it can be a laser welding head, an argon arc welding head, or a friction stir welding head. Similarly, the specific implementation of the cutting head 332 is also diverse; it can be a laser cutting head or a mechanical cutting head.

[0041] In some preferred embodiments, the inner support 210 can slide relative to the frame 100 along the axial direction and can stop at any position on its sliding trajectory. This allows the inner support 210 to move the cylinder segment, finely adjusting its position along the axial direction, thus facilitating subsequent cutting and welding of the cylinder segment.

[0042] It is understood that the cylinder segment has multiple longitudinal seams circumferentially, and each longitudinal seam needs to be aligned with the weldment 340 and the cutting element 330. In some preferred embodiments, the support assembly 200 includes a rotation drive 230, and an inner support 210 is rotatably mounted on the frame 100. The rotation drive 230 is driveably connected to the inner support 210 to drive the inner support 210 to rotate relative to the frame 100. By using the rotation drive 230 to drive the inner support 210 to rotate relative to the frame 100, the longitudinal seams to be welded are aligned with the cutting element 330 and the weldment 340, so as to facilitate the welding of each weld seam of the cylinder segment.

[0043] In some preferred embodiments, one end of the inner support member 210 has a transmission gear 214, and the rotation drive member 230 includes a drive gear 231 and a rotation motor 232. The drive gear 231 meshes with the transmission gear 214, and the rotation motor 232 drives the drive gear 231 and drives the drive gear 231 to rotate.

[0044] Before fitting the cylindrical section onto the inner support member 210, the clamping part 221 can be adjusted to a ready state to reserve space for placing the cylindrical section. After fitting the cylindrical section onto the inner support member 210, the clamping part 221 can be adjusted to a clamping state. This allows the outer clamping member 220 and the inner support member 210 to cooperate and clamp the cylindrical section. During the cutting process, the supporting telescopic part 213 can be adjusted to a cutting state, so that the supporting telescopic part 213 protrudes from the installation position 2111, so as to support the joint end of the cylindrical section. During the welding process, the supporting telescopic part 213 can be adjusted to a welding state, so that the supporting telescopic part 213 is concealed in the installation position 2111, avoiding damage to the support frame 211 from contact with the high-temperature welding area. By driving the slide 310 to move through the translation drive member 320, the joint end of the cylindrical section can be cut by the cutting member 330, making the joint end of the cylindrical section flat. Then, the longitudinal seam of the cylindrical section can be welded by the welding member 340. The longitudinal seam welding device for cylinder sections provided by this invention can be used to cut and trim the joint end of the cylinder section before welding the longitudinal seam, thereby ensuring the welding quality of the longitudinal seam of the cylinder section.

[0045] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A longitudinal seam welding device for a cylindrical section, characterized in that, include: frame; A support assembly includes an inner support member and an outer clamping member mounted on the frame, the inner support member supporting the inner wall of the cylindrical section and the outer clamping member clamping the outer wall of the cylindrical section. A welding assembly includes a slide block, a translation drive, a cutting component, and a welding component. The slide block is slidably mounted on the frame along the axial direction of the cylindrical section. The translation drive drives the slide block to move relative to the frame. The cutting component and the welding component are both mounted on the slide block. The cutting component is used to cut the joint end of the cylindrical section, and the welding component is used to weld the longitudinal seam of the cylindrical section. The inner support includes a support frame and a plurality of inner support telescopic parts. The support frame is installed on the frame and has a plurality of mounting positions arranged circumferentially. The plurality of inner support telescopic parts are installed one-to-one with the plurality of mounting positions. The inner support telescopic parts have an outward support state that partially protrudes from the mounting position and a retracted state that retracts into the mounting position. The support frame is provided with a plurality of cutting grooves, which are spaced apart between a plurality of mounting positions, and the cutting grooves are arranged along the axial direction of the cylindrical section. The inner support also includes a plurality of supporting telescopic parts, which are embedded in the plurality of cutting grooves in a corresponding manner. The supporting telescopic parts have a cut state that partially protrudes from the mounting position and a welded state that retracts into the mounting position.

2. The longitudinal seam welding device for cylindrical sections according to claim 1, characterized in that, The welded component includes a welding adjustment part and a welding head. One end of the welding adjustment part is connected to the slide block, and the other end is connected to the welding head. The welding adjustment part can drive the welding head to move relative to the slide block in three-dimensional space, and can make the welding head stop at any position on its sliding trajectory.

3. The longitudinal seam welding device for cylindrical sections according to claim 1, characterized in that, The cutting component includes a cutting adjustment part and a cutting head. One end of the cutting adjustment part is connected to the slide block, and the other end is connected to the cutting head. The cutting adjustment part can drive the cutting head to move relative to the slide block in three-dimensional space, and can make the cutting head stop at any position on its sliding trajectory.

4. The longitudinal seam welding device for cylindrical sections according to claim 1, characterized in that, The outer clamp includes several clamping parts, which are mounted on the frame. The clamping parts have a clamping state that presses against the outer wall of the cylinder section and a ready state that is ready to detach from the outer wall of the cylinder section.

5. The longitudinal seam welding device for cylindrical sections according to claim 1, characterized in that, The inner support member can slide relative to the frame along the axial direction and can stop at any position on its sliding trajectory.

6. The longitudinal seam welding device for cylindrical sections according to claim 1, characterized in that, The support assembly includes a rotation drive, the inner support is rotatably mounted on the frame, and the rotation drive is connected to the inner support to drive the inner support to rotate relative to the frame.

7. The longitudinal seam welding device for cylindrical sections according to claim 6, characterized in that, One end of the inner support member has a transmission gear, and the rotation drive member includes a drive gear and a rotation motor. The drive gear meshes with the transmission gear, and the rotation motor drives the drive gear and causes the drive gear to rotate.

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