Door panel welding tool

By designing welding fixtures suitable for the moving and fixed positioning mechanisms of train door panels, the problem of insufficient versatility of fixtures and tools was solved, achieving efficient positioning of train door panels of different specifications and improving production efficiency.

CN224475775UActive Publication Date: 2026-07-10GUANGDONG ZHONGCHENG TRANSPORTATION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG ZHONGCHENG TRANSPORTATION TECH CO LTD
Filing Date
2025-06-05
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In the current production of train door panels, the fixtures and tooling lack versatility and cannot adapt to different specifications of train door panels, resulting in the need to change the fixtures when changing specifications.

Method used

Design a door panel welding fixture that uses a combination of a moving positioning mechanism and a fixed positioning mechanism. The positioning of the side beam is achieved by a clamping cylinder. The moving positioning mechanism can slide and adjust its position along the transverse main guide rail to adapt to door panels of different widths.

Benefits of technology

It improves the versatility of the side beam positioning, enabling it to adapt to different specifications of train door panels, reducing the need to change fixtures, and improving production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a door panel welding frock, include: welding station, it includes workstation, fixed positioning mechanism, mobile positioning mechanism and horizontal main guide rail, fixed positioning mechanism with horizontal main guide rail sets up on workstation, the extension direction of horizontal main guide rail is same with train door panel's width direction, mobile positioning mechanism slidingly sets up on horizontal main guide rail, fixed positioning mechanism with mobile positioning mechanism all includes compacting cylinder, control device, with compacting cylinder electric connection, is used for to compacting cylinder sends compacting signal or loosens the signal. Compared with prior art, the present application uses mobile positioning mechanism and fixed positioning mechanism cooperation to compact the positioning of side beam, wherein, mobile positioning mechanism can slide along horizontal main guide rail, so as to change the position of mobile positioning mechanism according to different width specifications of the door, so that the side beam is compacted better, and the versatility is high.
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Description

Technical Field

[0001] This utility model belongs to the technical field of production equipment for rail transit, and specifically relates to a door panel welding fixture. Background Technology

[0002] In rail transit, a train consists of multiple connected carriages, each equipped with doors for passenger access. Therefore, train doors are a crucial component of rail transit. In the production workshop of train doors, multiple fixtures are used to clamp and fix multiple side beams before workers weld the joints of the side beams to form the entire door. However, this process is limited in that the fixtures can only accommodate one type of train door, lacking versatility. Furthermore, when the specifications of the train door change, new fixtures are required. Utility Model Content

[0003] In order to overcome the above-mentioned technical defects, this utility model provides a door panel welding fixture, which can solve the technical problem of insufficient versatility of existing fixtures for fixing train door panels.

[0004] This utility model is implemented according to the following technical solution:

[0005] This utility model provides a door panel welding fixture, which is applied to train door panels and includes:

[0006] The welding station includes a worktable, a fixed positioning mechanism, a movable positioning mechanism, and a transverse main guide rail. The fixed positioning mechanism and the transverse main guide rail are mounted on the worktable, and the extension direction of the transverse main guide rail is the same as the width direction of the train door panel. The movable positioning mechanism is slidably mounted on the transverse main guide rail. Both the fixed positioning mechanism and the movable positioning mechanism include a clamping cylinder.

[0007] A control device, electrically connected to the clamping cylinder, is used to send a clamping signal or a releasing signal to the clamping cylinder.

[0008] Compared with the prior art, this application uses a combination of a mobile positioning mechanism and a fixed positioning mechanism to press and position the side beam. The mobile positioning mechanism can slide along the transverse main guide rail so that its position can be changed according to the different width specifications of the door, thereby better pressing and positioning the side beam and making it highly versatile.

[0009] In one embodiment, the mobile positioning mechanism includes a movable plate, which is slidably connected to the transverse main guide rail via a slider;

[0010] The pressing cylinder of the moving positioning mechanism is mounted on the movable plate.

[0011] In one embodiment, the clamping cylinder of the fixed positioning mechanism is disposed on the worktable.

[0012] In one embodiment, the workbench is further provided with a side beam support mechanism, which includes a side beam support base and two side beam limiting blocks. The two side beam limiting blocks are disposed on the upper side of the side beam support base, and a side beam accommodating space is formed between the two side beam limiting blocks and the side beam support base.

[0013] In one embodiment, the worktable includes a front worktable and a rear worktable, which are separately arranged;

[0014] The fixed positioning mechanism includes a front fixed positioning mechanism and a rear fixed positioning mechanism. The front fixed positioning mechanism is disposed on the front worktable, and the rear fixed positioning mechanism is disposed on the rear worktable.

[0015] The mobile positioning mechanism includes a front mobile positioning mechanism and a rear mobile positioning mechanism. The front mobile positioning mechanism is disposed on the front worktable, and the rear mobile positioning mechanism is disposed on the rear worktable.

[0016] In one embodiment, the workbench further includes an auxiliary workbench located between the front workbench and the rear workbench; the auxiliary workbench is provided with a reinforcing beam clamping cylinder and a side beam clamping cylinder.

[0017] In one embodiment, the auxiliary workbench is further provided with a transverse auxiliary guide rail, the extension direction of which is the same as the width direction of the train door panel, and the transverse auxiliary guide rail is slidably connected to the side beam pressing cylinder.

[0018] In one embodiment, the door panel welding fixture further includes a welding robot; and welding stations respectively disposed on both sides of the welding robot. Attached Figure Description

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is a perspective view of the door panel welding fixture of this utility model;

[0021] Figure 2 This is a top view of the door panel welding fixture of this utility model;

[0022] Figure 3 This is a schematic diagram of the door panel welding fixture and welding robot of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 10 Welding Stations, 110 Workbench, 120 Fixed Positioning Mechanism, 130 Moving Positioning Mechanism, 131 Movable Plate, 132 Slider, 140 Transverse Main Guide Rail, 150 Clamping Cylinder, 160 Side Beam Support Mechanism, 161 Side Beam Support Base, 162 Side Beam Limiting Block, 170 Auxiliary Workbench, 171 Reinforcing Beam Clamping Cylinder, 172 Side Beam Clamping Cylinder, 173 Transverse Auxiliary Guide Rail, 20 Welding Robot, 30 Side Beam, 40 Reinforcing Beam. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] To better illustrate this utility model, a further detailed description of this utility model is provided below with reference to the accompanying drawings.

[0027] It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of the embodiments of this application.

[0028] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0029] In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0031] Combination Figures 1 to 3 As shown, this utility model provides a door panel welding fixture, which is applied to a train door panel. It includes: a welding station 10, comprising a workbench 110, a fixed positioning mechanism 120, a movable positioning mechanism 130, and a transverse main guide rail 140. The fixed positioning mechanism 120 and the transverse main guide rail 140 are mounted on the workbench 110, and the extension direction of the transverse main guide rail 140 is the same as the width direction of the train door panel. The movable positioning mechanism 130 is slidably mounted on the transverse main guide rail 140. Both the fixed positioning mechanism 120 and the movable positioning mechanism 130 include a clamping cylinder 150. A control device is electrically connected to the clamping cylinder 150 and is used to send a clamping signal or a releasing signal to the clamping cylinder 150.

[0032] Specifically, the train door panel is welded from multiple side beams 30. Before welding, the multiple side beams 30 are placed on the workbench 110 and their positions are determined. The control device sends a clamping signal to the clamping cylinders 150 of the fixed positioning mechanism 120 and the moving positioning mechanism 130, controlling the clamping cylinders 150 to clamp the side beams 30. At this time, only the joint positions on the side beams 30 need to be welded to obtain the train door panel. After welding, the control device sends a release signal to the clamping cylinders 150 of the fixed positioning mechanism 120 and the moving positioning mechanism 130, and the clamping cylinders 150 release the clamping on the side beams 30, allowing the train door panel to be removed from the workbench 110.

[0033] When the specifications of the train door panel change, the moving positioning mechanism 130 slides along the extension direction of the transverse main guide rail 140 according to the change in the width of the train door panel, thereby adjusting the position of the train door panel to better fix the side beam 30 and improve the versatility of the door panel welding fixture of this application. For example, when the width of the train door panel becomes narrower, the moving positioning mechanism 130 moves to the left, and when the width of the train door panel becomes wider, the moving positioning mechanism 130 moves to the right. It should be noted that the change in the specifications of the train door panel referred to here refers to a change in the width of the train door panel.

[0034] Compared with the prior art, this application uses a mobile positioning mechanism 130 and a fixed positioning mechanism 120 to press and position the side beam 30. The mobile positioning mechanism 130 can slide along the transverse main guide rail 140 so that the position of the mobile positioning mechanism 130 can be changed according to the door width specifications, thereby better pressing and positioning the side beam 30, and has high versatility.

[0035] In this embodiment, the moving positioning mechanism 130 includes a movable plate 131, which is slidably connected to the transverse main guide rail 140 via a slider 132. A clamping cylinder 150 of the moving positioning mechanism 130 is mounted on the movable plate 131. The movable plate 131 slides along the extending direction of the transverse main guide rail 140 via the slider, thereby changing the position of the clamping cylinder 150 on the movable plate 131 relative to the worktable 110. Furthermore, the movable plate 131 has multiple clamping cylinders 150; in this embodiment, the positions of multiple clamping cylinders 150 can be adjusted simultaneously using the above method.

[0036] In this embodiment, the clamping cylinder 150 of the fixing and positioning mechanism 120 is disposed on the worktable 110.

[0037] In this embodiment, the workbench 110 is further provided with a side beam 30 support mechanism 160. The side beam 30 support mechanism 160 includes a side beam 30 support base 161 and two side beam limiting blocks 162. The two side beam limiting blocks 162 are disposed on the upper side of the side beam 30 support base 161, and a side beam 30 accommodating space is formed between the two side beam limiting blocks 162 and the side beam 30 support base 161. When the side beam 30 is placed, the side beam 30 support base 161 contacts the lower side of the side beam 30, and the side beam limiting blocks 162 contact the opposite two sides of the side beam 30. The side beam 30 support mechanism 160 supports and limits the side beam 30, thus determining the position of the side beam 30.

[0038] In this embodiment, the workbench 110 includes a front workbench 110 and a rear workbench 110, which are separately arranged. The fixed positioning mechanism 120 includes a front fixed positioning mechanism 120 and a rear fixed positioning mechanism 120, with the front fixed positioning mechanism 120 disposed on the front workbench 110 and the rear fixed positioning mechanism 120 disposed on the rear workbench 110. The moving positioning mechanism 130 includes a front moving positioning mechanism 130 and a rear moving positioning mechanism 130, with the front moving positioning mechanism 130 disposed on the front workbench 110 and the rear moving positioning mechanism 130 disposed on the rear workbench 110. By separating the front and rear workbench 110, this embodiment reduces the manufacturing cost of the door panel welding fixture compared to a single workbench 110.

[0039] In this embodiment, in order to position and fix the reinforcing beams 40 of some train door panels, the workbench 110 also includes an auxiliary workbench 170, which is located between the front workbench 110 and the rear workbench 110. The auxiliary workbench 170 is equipped with a reinforcing beam 40 clamping cylinder 171 and a side beam clamping cylinder 172. The reinforcing beam 40 is clamped and fixed by the reinforcing beam 40 clamping cylinder 171, and the side beam clamping cylinder 172 can also fix the side beams 30 of the train door panels.

[0040] In this embodiment, the auxiliary workbench 170 is also provided with a transverse auxiliary guide rail 173. The extension direction of the transverse auxiliary guide rail 173 is the same as the width direction of the train door panel. The transverse auxiliary guide rail 173 is slidably connected to the side beam pressing cylinder 172 so that the side beam pressing cylinder 172 can move on the transverse auxiliary guide rail 173 according to the specifications of the train door panel and adjust its position.

[0041] In this embodiment, the door panel welding fixture further includes a welding robot 20 and welding stations 10 respectively arranged on both sides of the welding robot 20. Workers can place the side beam 30 at one of the welding stations 10, while the side beam 30 at the other welding station 10 is welded by the welding robot 20, thereby improving production efficiency.

[0042] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A door panel welding fixture, applied to train door panels, characterized in that, include: The welding station includes a worktable, a fixed positioning mechanism, a movable positioning mechanism, and a transverse main guide rail. The fixed positioning mechanism and the transverse main guide rail are mounted on the worktable, and the extension direction of the transverse main guide rail is the same as the width direction of the train door panel. The movable positioning mechanism is slidably mounted on the transverse main guide rail. Both the fixed positioning mechanism and the movable positioning mechanism include a clamping cylinder. A control device, electrically connected to the clamping cylinder, is used to send a clamping signal or a releasing signal to the clamping cylinder.

2. The door panel welding fixture according to claim 1, characterized in that: The mobile positioning mechanism includes a movable plate, which is slidably connected to the transverse main guide rail via a slider. The pressing cylinder of the moving positioning mechanism is mounted on the movable plate.

3. The door panel welding fixture according to claim 1, characterized in that: The clamping cylinder of the fixed positioning mechanism is mounted on the worktable.

4. The door panel welding fixture according to claim 1, characterized in that: The workbench is also provided with a side beam support mechanism, which includes a side beam support base and two side beam limiting blocks. The two side beam limiting blocks are disposed on the upper side of the side beam support base, and a side beam accommodating space is formed between the two side beam limiting blocks and the side beam support base.

5. The door panel welding fixture according to claim 1, characterized in that: The workbench includes a front workbench and a rear workbench, which are separately arranged. The fixed positioning mechanism includes a front fixed positioning mechanism and a rear fixed positioning mechanism. The front fixed positioning mechanism is disposed on the front worktable, and the rear fixed positioning mechanism is disposed on the rear worktable. The mobile positioning mechanism includes a front mobile positioning mechanism and a rear mobile positioning mechanism. The front mobile positioning mechanism is disposed on the front worktable, and the rear mobile positioning mechanism is disposed on the rear worktable.

6. The door panel welding fixture according to claim 5, characterized in that: The workbench also includes an auxiliary workbench, which is located between the front workbench and the rear workbench; the auxiliary workbench is equipped with a reinforcing beam clamping cylinder and a side beam clamping cylinder.

7. The door panel welding fixture according to claim 6, characterized in that: The auxiliary workbench is also provided with a transverse auxiliary guide rail. The extension direction of the transverse auxiliary guide rail is the same as the width direction of the train door panel. The transverse auxiliary guide rail is slidably connected to the side beam pressing cylinder.

8. The door panel welding fixture according to any one of claims 1-7, characterized in that, Also includes: Welding robots; And the welding stations respectively set on both sides of the welding robot.