Sheet welding deformation control device

Abstract

The utility model belongs to sheet metal welding technical field, and disclose sheet metal welding deformation control device, including work table, the top of work table is installed with two fixed components, the top of work table is fixedly connected with two supports, two supports lower inner wall all are fixedly connected with pneumatic cylinder, the output of two pneumatic cylinders is commonly installed with welding assembly, and the welding assembly includes horizontal bearing beam, the output of two pneumatic cylinders is commonly connected with horizontal bearing beam fixedly, the bottom of horizontal bearing beam is set up with long slot, the utility model discloses a welding assembly is set up, four deformation suppression rollers are set up with buffer pad and are symmetrically distributed with welding torch as center, under the action that pneumatic cylinder drives deformation suppression roller and moves with welding torch synchronously and buffer pad elastic contact, realize dynamic compression to the welding area, effectively offset the deformation caused by thermal stress, avoid rigid contact damage sheet metal surface simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of thin plate welding technology, specifically a thin plate welding deformation control device. Background Technology

[0002] In modern manufacturing, thin plate welding technology is widely used in automobile manufacturing, aerospace, and electronic equipment. With increasing demands for lightweight and precision products, the requirements for thin plate welding quality are becoming increasingly stringent. However, due to their thinness and poor rigidity, thin plates are highly susceptible to thermal stress caused by localized heating during the welding process, leading to problems such as wavy deformation, angular deformation, and torsional deformation.

[0003] Meanwhile, the patent specification with application number CN217529689U discloses a thin plate welding table and a thin plate clamping device. The thin plate welding table includes a base frame at the bottom and a support frame set on the base frame. The thin plate clamping device includes a support base set on the base frame, a clamping steel plate set on the upper part of the support base, a gap for placing the thin plate between the support base and the clamping steel plate, a ceramic U-shaped groove set in the middle of the surface of the support base, an electric heating plate set below the support base along the direction of the U-shaped groove, a hydraulic rod set on the upper part of the clamping steel plate, and a welding gun movably set on the support frame.

[0004] Existing thin plate welding deformation control devices lack a dynamic clamping mechanism linked to the welding torch during welding, making it impossible to track the welding heat source in real time and suppress deformation caused by thermal stress. This results in defects such as wavy twisting and misalignment of joints in long welds or complex curved welds, affecting welding quality and workpiece dimensional accuracy. Secondly, the fixing components mostly use rigid pressure plates to directly clamp the thin plates, which can easily leave indentations or scratches on the plate surface, especially causing significant damage to materials with high surface precision requirements such as aluminum alloys and coated plates.

[0005] Therefore, a thin plate welding deformation control device is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a thin plate welding deformation control device, which has the advantages of realizing dynamic clamping of the welding area, effectively offsetting the deformation caused by thermal stress, avoiding rigid contact damage to the surface of the thin plate, and facilitating quick adjustment of the clamping width to adapt to workpieces of different specifications.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a thin plate welding deformation control device, including a worktable, two fixed components installed at the top of the worktable, two supports fixedly connected to the top of the worktable, cylinders fixedly connected to the inner walls of the two supports, welding components installed at the output ends of the two cylinders, the welding components including a transverse bearing beam, the output ends of the two cylinders fixedly connected to the transverse bearing beam, a long groove opened at the bottom of the transverse bearing beam, a lead screw rotatably connected to the inner walls of both sides of the long groove, a power motor fixedly connected to one end of the transverse bearing beam, the output end of the power motor passing through the transverse bearing beam and fixedly connected to the lead screw, a movable frame threaded onto the outer surface of the lead screw, a mounting frame fixedly connected to the bottom of the movable frame, a welding gun installed at the bottom of the mounting frame, and four deformation suppression rollers installed at the bottom of the mounting frame.

[0008] Preferably, four deformation suppression rollers are symmetrically distributed on both sides of the welding gun, with two rollers on each side.

[0009] Preferably, the outer surfaces of the four deformation suppression rollers are all equipped with cushioning pads.

[0010] Preferably, the fixing assembly includes two fixing plates, which are fixedly connected to the worktable. Each of the two fixing plates has a pressure plate slidably connected to one end of its corresponding end. Each of the two pressure plates has two vertical rods fixedly connected to its top end. Springs are wound around the outer surfaces of the four vertical rods. Extension plates are fixedly connected to the outer surfaces of the four vertical rods. Two extension plates on the same side are fixedly connected to the corresponding fixing plates.

[0011] Preferably, each of the two pressure plates has two guide blocks fixedly connected to one end, and each of the two fixed plates has a guide groove at one end corresponding to the two guide blocks.

[0012] Preferably, two pressure plates are slidably connected at one end of the two pressure plates one, and a pressure plate three is fixedly connected at one end of the two pressure plates one, with a handle fixedly connected to the top of the pressure plate three.

[0013] Preferably, the bottom ends of pressure plate one, pressure plate two, and pressure plate three are all fixedly connected with anti-slip pads.

[0014] Preferably, both ends of the two pressure plates are fixedly connected to sliders, and each of the two fixed plates has a groove at one end that is used to cooperate with the two sliders.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model sets up a welding assembly, which sets up four deformation suppression rollers symmetrically distributed around the welding gun and sets up a buffer pad. Under the action of the cylinder driving the deformation suppression rollers to move synchronously with the welding gun and the elastic contact of the buffer pad, dynamic pressing of the welding area is achieved, which effectively offsets the deformation caused by thermal stress, while avoiding rigid contact damage to the surface of the thin plate.

[0017] 2. By setting a fixing component, the pressure plate can adapt to thin plates of different thicknesses and perform elastic clamping under the action of elastic buffering of spring and increased friction of anti-slip pad, which improves positioning accuracy, reduces the risk of crushing the edge of the plate, and facilitates quick adjustment of clamping width to adapt to workpieces of different specifications. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the welding assembly structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the fixing component structure of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 5 This is a schematic diagram of the second pressure plate structure of this utility model.

[0023] In the diagram: 1. Workbench; 2. Support; 3. Cylinder;

[0024] 4. Welding components; 41. Transverse load-bearing beam; 42. Long groove; 43. Lead screw; 44. Moving frame; 45. Power motor; 46. Mounting frame; 47. Deformation suppression roller; 48. Welding torch;

[0025] 5. Fixing components; 51. Fixing plate;

[0026] 52. Pressure plate 1; 521. Vertical rod; 522. Spring; 523. Guide groove; 524. Guide block;

[0027] 53. Pressure plate three; 54. Handle; 55. Pressure plate two;

[0028] 56. Slide rail; 561. Slider; 562. Anti-slip pad;

[0029] 57. Extension plate. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figures 1 to 5 As shown, this utility model provides a thin plate welding deformation control device, including a worktable 1. Two fixed components 5 are installed on the top of the worktable 1. Two supports 2 are fixedly connected to the top of the worktable 1. Cylinders 3 are fixedly connected to the lower inner walls of the two supports 2. Welding components 4 are installed at the output ends of the two cylinders 3. The welding components 4 are raised and lowered by the cylinders 3. The moving frame 44 is driven by the lead screw 43 and the power motor 45, so as to realize the three-dimensional position adjustment of the welding gun 48 and the deformation suppression roller 47. It can flexibly adapt to the welding needs of thin plates of different sizes and improve the versatility of the device.

[0032] The welding assembly 4 includes a transverse support beam 41. The output ends of two cylinders 3 are fixedly connected to the transverse support beam 41. A long groove 42 is opened at the bottom end of the transverse support beam 41. A lead screw 43 is rotatably connected to the inner walls of both sides of the long groove 42. A power motor 45 is fixedly connected to one end of the transverse support beam 41. The output end of the power motor 45 passes through the transverse support beam 41 and is fixedly connected to the lead screw 43. A moving frame 44 is threaded onto the outer surface of the lead screw 43. A mounting frame 46 is fixedly connected to the bottom end of the moving frame 44. A welding torch 48 is installed at the bottom end of the mounting frame 46. Four deformation suppression rollers 47 are installed at the bottom end of the mounting frame 46. The transverse support beam 41, the lead screw 43 and the power motor 45 work together to precisely control the movement of the moving frame 44, thereby driving the welding torch 48 and the deformation suppression rollers 47 to move smoothly along the welding direction, improving the accuracy of the welding path and the degree of automation.

[0033] Specifically, four deformation suppression rollers 47 are symmetrically distributed on both sides of the welding torch 48, with two rollers on each side. The symmetrically distributed deformation suppression rollers 47 can apply uniform reverse pressure to the thin plate during welding, effectively offsetting the deformation caused by welding thermal stress, ensuring the force balance on both sides of the weld, and improving welding accuracy.

[0034] like Figures 1 to 5 As shown, buffer pads are installed on the outer surfaces of the four deformation suppression rollers 47. The buffer pads prevent the deformation suppression rollers 47 from rigidly contacting the thin plate, preventing scratches or indentations on the surface of the thin plate during the rolling process, and protecting the surface quality of the thin plate. This is especially suitable for materials with high surface precision requirements.

[0035] Furthermore, the fixing component 5 includes two fixing plates 51, which are fixedly connected to the worktable 1. Each of the two fixing plates 51 has a pressure plate 52 slidably connected to one end of its corresponding end. Each of the two pressure plates 52 has two vertical rods 521 fixedly connected to its top end. Springs 522 are wound around the outer surfaces of the four vertical rods 521. Extension plates 57 are fixedly connected to the outer surfaces of the four vertical rods 521. The two extension plates 57 on the same side are fixedly connected to the corresponding fixing plates 51. The springs 522 and the vertical rods 521 cooperate to form an elastic pressing structure, which can adapt to thin plates of different thicknesses, provide a stable and adjustable preload, avoid damage to the thin plates due to excessive pressure, and ensure that the thin plates are firmly fixed.

[0036] like Figures 1 to 5 As shown, two guide blocks 524 are fixedly connected to one end of each of the two pressure plates 52. The corresponding ends of the two fixing plates 51 are provided with guide grooves 523 that cooperate with the two guide blocks 524. The cooperation between the guide blocks 524 and the guide grooves 523 keeps the pressure plate 52 stable during sliding, prevents displacement, ensures accurate fixing position of the thin plate, and improves the reliability and stability of the fixing assembly 5.

[0037] It is worth noting that two pressure plates 52 are slidably connected to each other at their corresponding ends, and pressure plates 55 are fixedly connected to each other at their corresponding ends. A handle 54 is fixedly connected to the top of pressure plate 53. Through the handle 54, pressure plates 52, 55 and 53 can be moved synchronously to quickly adjust the fixing range, which is convenient for positioning and fixing thin plates of different widths and improves the efficiency of operation.

[0038] like Figures 1 to 5 As shown, anti-slip pads 562 are fixedly connected to the bottom ends of pressure plate 1 52, pressure plate 2 55 and pressure plate 3 53. The anti-slip pads 562 increase the friction between the pressure plate and the thin plate, prevent the thin plate from sliding during the welding process, further improve the stability of the thin plate fixation and ensure the welding quality.

[0039] It is worth emphasizing that both ends of the two pressure plates 55 are fixedly connected to sliders 561, and the corresponding ends of the two fixing plates 51 are provided with grooves 56 for use with the two sliders 561. When the width and placement position of the thin plate change, simply slide the pressure plate 55 to press it down at different positions. It works in conjunction with the pressure plate 1 52 and the pressure plate 3 53 to achieve a more stable and precise fixation of the thin plate, thereby enhancing the adaptability and versatility of the fixing component 5 for thin plates of different specifications.

[0040] The power motor 45 and cylinder 3 are existing technologies and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail. The wiring diagram of the motor in this utility model is common knowledge in the field, and its working principle is already known technology. The appropriate model is selected based on actual use; therefore, the control method and wiring layout of the motor will not be explained in detail.

[0041] Working principle and process: Two thin plates are placed on the workbench 1. The handle 54 drives the pressure plate 1 52, pressure plate 2 55 and pressure plate 3 53 to rise, and the spring 522 is compressed. After the thin plates are placed, the two thin plates are joined together. The handle 54 is released, and the spring force of the spring 522 causes the pressure plate to press the thin plate through the anti-slip pad 562. At the same time, the pressure plate 2 55 can slide along the slide groove 56 of the fixed plate 51 through the slider 561, flexibly adjusting the fixed position to adapt to thin plates of different sizes. Then, the cylinder 3 drives the welding assembly 4 to descend to a suitable height. The power motor 45 drives the lead screw 43 to rotate, so that the moving frame 44 carries the welding gun 48 and the deformation suppression roller 47 to the welding start position. During welding, the welding gun 48 operates, and the deformation suppression roller 47 moves synchronously and applies reverse pressure to the thin plate through the buffer pad to offset the welding thermal stress and suppress deformation. After welding is completed, the welding assembly 4 is reset. The handle 54 is operated again to release the pressure plate, and the thin plate can be removed.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thin plate welding deformation control device, comprising a worktable (1), characterized in that: Two fixing components (5) are installed on the top of the workbench (1), and two brackets (2) are fixedly connected to the top of the workbench (1). Cylinders (3) are fixedly connected to the inner walls of the two brackets (2), and welding components (4) are installed at the output ends of the two cylinders (3). The welding assembly (4) includes a transverse bearing beam (41), the output ends of the two cylinders (3) are fixedly connected to the transverse bearing beam (41), the bottom end of the transverse bearing beam (41) is provided with a long groove (42), the inner walls of the two sides of the long groove (42) are rotatably connected to a lead screw (43), one end of the transverse bearing beam (41) is fixedly connected to a power motor (45), the output end of the power motor (45) passes through the transverse bearing beam (41) and is fixedly connected to the lead screw (43), the outer surface of the lead screw (43) is threaded with a moving frame (44), the bottom end of the moving frame (44) is fixedly connected to an installation frame (46), the bottom end of the installation frame (46) is equipped with a welding gun (48), and the bottom end of the installation frame (46) is equipped with four deformation suppression rollers (47).

2. The thin plate welding deformation control device according to claim 1, characterized in that: The four deformation suppression rollers (47) are symmetrically distributed on both sides of the welding gun (48) with two on each side.

3. The thin plate welding deformation control device according to claim 1, characterized in that: The outer surfaces of the four deformation suppression rollers (47) are all fitted with cushioning pads.

4. The thin plate welding deformation control device according to claim 1, characterized in that: The fixing component (5) includes two fixing plates (51), which are fixedly connected to the worktable (1). One end of each fixing plate (51) is slidably connected to a pressure plate (52). The top ends of each pressure plate (52) are fixedly connected to two vertical rods (521). The outer surfaces of the four vertical rods (521) are wrapped with springs (522). The outer surfaces of the four vertical rods (521) are fixedly connected to extension plates (57). The two extension plates (57) on the same side are fixedly connected to the corresponding fixing plates (51).

5. The thin plate welding deformation control device according to claim 4, characterized in that: Two guide blocks (524) are fixedly connected to one end of each of the two pressure plates (52), and guide grooves (523) are provided at the corresponding ends of the two fixed plates (51) to cooperate with the two guide blocks (524).

6. The thin plate welding deformation control device according to claim 4, characterized in that: Two pressure plates (55) are slidably connected at one end of the two pressure plates (52), and a pressure plate (53) is fixedly connected at one end of the two pressure plates (52), with a handle (54) fixedly connected to the top of the pressure plate (53).

7. The thin plate welding deformation control device according to claim 6, characterized in that: The bottom ends of the pressure plate one (52), pressure plate two (55) and pressure plate three (53) are all fixedly connected with anti-slip pads (562).

8. The thin plate welding deformation control device according to claim 6, characterized in that: Both ends of the two pressure plates (55) are fixedly connected to sliders (561), and the corresponding ends of the two fixed plates (51) are provided with grooves (56) for use with the two sliders (561).

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