A welding device for an elevator car

Abstract

The utility model discloses a kind of welding processing devices of elevator car, including fixing frame, the fixing frame is installed on external device, adjusting mechanism is provided on the fixing frame, the adjusting mechanism includes slide rail, the slide rail is provided with two, and two the slide rail is respectively installed on the both sides of the fixing frame, the most remarkable advantage of this elevator car welding processing device is that its height flexible size adjustment system, the industry pain point of difficult adjustment of traditional equipment when facing different specifications car is solved, device adopts the design of double-side slide rail and slider combination, forms accurate controllable linear movement mechanism, so that moving frame can be realized stepless adjustment in horizontal direction.

Description

Technical Field

[0001] This utility model relates to the field of welding processing technology for elevator cars, and more specifically, it relates to a welding processing device for elevator cars. Background Technology

[0002] In the current elevator manufacturing industry, elevator car welding, as a key process in product production, faces severe technical challenges and bottlenecks. As a core component directly used by passengers, the elevator car needs to be produced in various sizes and structures according to building space requirements, load specifications, and functional needs. Traditional car welding equipment exhibits significant limitations in meeting these diverse demands; its adjustment mechanisms are often rudimentary in design, cumbersome in operation, and lack precision. Technicians adjusting fixtures to accommodate different car sizes require complex disassembly, replacement, and reinstallation processes, involving extensive bolt removal and manual adjustment. This mechanical adjustment method is not only time-consuming and labor-intensive but also struggles to guarantee accuracy and repeatability, leading to increased dimensional errors in the elevator car and unstable welding quality. Industry data shows that adjustment time during size switching with traditional equipment typically accounts for 15%-25% of total production time, severely impacting production efficiency and capacity release.

[0003] The multidimensional impact of the limitations of fixed mechanisms on production efficiency and product quality

[0004] The issues of fixing and adjusting elevator cars during welding are interconnected, forming a key bottleneck restricting product quality and production efficiency. Existing equipment often uses mechanical clamps or simple pressure plates for fixing, lacking specific design for the complex structure of the car. This crude fixing method leads to deformation, misalignment, and stress concentration of the car panels during welding, making it difficult to guarantee weld quality. More seriously, different car sizes require different fixing points and pressure distributions, but existing equipment has poor adjustability, failing to achieve rapid adaptation and precise fixing. Technicians often need to take temporary reinforcement measures or manually assist in positioning, which not only increases labor intensity but also introduces human error. Simultaneously, frequent adjustments and fixing operations exacerbate equipment wear and reduce the accuracy of the adjustment mechanism, creating a vicious cycle. As elevator products develop towards higher precision and higher quality, the requirements for car size and structural tolerances are becoming increasingly stringent. The shortcomings of traditional equipment in terms of adjustment accuracy and fixing reliability have become a key obstacle to improving product quality. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a welding processing device for elevator cars to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a welding processing device for an elevator car, comprising a fixed frame, the fixed frame being installed on an external device, an adjustment mechanism being provided on the fixed frame, the adjustment mechanism comprising slide rails, two slide rails being provided, the two slide rails being respectively installed on both sides of the fixed frame, and sliders being slidably provided on each of the two slide rails, and a movable frame being provided on each pair of sliders, and a fixed tube being threaded on both sides of the movable frame, a top tube being slidably provided coaxially inside the fixed tube, the top tube abutting against the side wall of the fixed frame, a spring being provided on the top tube, and a follower plate being provided at the other end of the spring.

[0009] The present invention is further configured such that a telescopic tube is slidably installed inside the fixed tube, and the follower plate and the top tube are respectively slidably connected inside the telescopic tube.

[0010] The present invention is further configured such that multiple annular grooves are equally spaced on the side wall of the telescopic tube, and an elastic sheet is installed on the inner wall of the fixed tube, the elastic sheet being engaged in the annular groove.

[0011] The present invention is further configured such that a fixing block is coaxially provided on the telescopic tube, a through hole is provided in the fixing block, a screw is threadedly connected in the through hole, and the screw abuts against the follower plate.

[0012] The present invention is further configured such that a telescopic disc is coaxially mounted on the telescopic tube, and the fixing block is mounted and connected to the telescopic disc.

[0013] The present invention is further configured such that multiple lateral grooves are equally spaced on the outer wall of the telescopic tube, and a synchronization plate is slidably disposed in each of the multiple lateral grooves.

[0014] The present invention is further configured such that a synchronization ring is installed at one end of the synchronization plate, and the synchronization ring is slidably connected to the telescopic tube.

[0015] The present invention is further configured such that a push plate is provided at the other end of the synchronization plate, and the push plate is slidably connected to the telescopic tube.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a welding processing device for elevator cars, which has the following beneficial effects:

[0018] The most significant advantage of this elevator car welding and processing device lies in its highly flexible size adjustment system, which solves the industry pain point of traditional equipment's difficulty in adjusting to different car sizes. The device adopts a design combining double-sided slide rails and sliders to form a precise and controllable linear movement mechanism, enabling the moving frame to achieve stepless adjustment in the horizontal direction. This design allows operators to quickly adjust the position of each moving frame according to the size requirements of different cars, achieving precise adaptation to different car sizes.

[0019] Compared to traditional adjustment methods that require disassembly and reassembly, the sliding adjustment mechanism of this device reduces adjustment time by approximately 70%, significantly improving production efficiency. More importantly, the precise fit between the slide rail and the slider ensures high precision and good repeatability in the adjustment process, keeping the positional deviation after each adjustment within the millimeter level. This significantly improves the dimensional accuracy and consistency of the car welding. This rapid and precise adjustment capability allows the device to flexibly meet the production needs of small batches and multiple varieties, providing elevator manufacturers with significant process flexibility and market responsiveness.

[0020] This device adopts a highly innovative dual-stage fixing mechanism design, achieving a perfect combination of "rapid pre-fixing" and "precise and powerful fixing". It solves the problems of low efficiency and insufficient reliability of traditional fixing methods. The pre-fixing stage uses a spring-driven jacking mechanism. The operator only needs to press the telescopic disc to activate the mechanism so that the jacking pipe contacts the side wall of the fixing frame. At the same time, the elastic plate automatically engages with the annular groove to form a preliminary fixation. This design allows the pre-fixing process to be completed in only 2-3 seconds, which is about 85% more efficient than the traditional bolt fixing method.

[0021] When long-term stable fixation is required, the device provides a second-stage fixation function. By rotating the screw, a precisely controlled additional thrust can be applied to the follower plate, thereby increasing the pressure of the spring on the jacking tube and achieving a stronger fixation effect. This dual-stage fixation design not only significantly improves operational efficiency, but more importantly, it provides adjustable fixation force, allowing operators to precisely control the fixation force according to different car materials and welding requirements, avoiding problems such as deformation due to excessive tightness or displacement due to excessive looseness. Test data shows that the maximum fixation force provided by this fixation mechanism is about 40% higher than that of traditional devices, while the fixation stability is improved by about 50%, significantly improving the stability of the workpiece during the welding process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a welding processing device for an elevator car according to the present invention.

[0023] Figure 2 This is a schematic diagram of the structure of the movable frame in this utility model;

[0024] Figure 3This is a schematic diagram of the structure of the fixed tube in this utility model;

[0025] Figure 4 This is a cross-sectional view of the fixed tube and telescopic disc in this utility model;

[0026] Figure 5 This is a schematic diagram of the telescopic tube and the synchronization coil in this utility model.

[0027] In the diagram: 1. Fixed frame; 2. Slide rail; 3. Slider; 4. Moving frame; 5. Fixed tube; 6. Top tube; 7. Spring; 8. Follower plate; 9. Annular groove; 10. Fixed block; 11. Through hole; 12. Side groove; 13. Synchronizing plate; 14. Synchronizing ring; 15. Push plate; 16. Telescopic tube; 17. Elastic sheet; 18. Screw; 19. Telescopic plate. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figure 1-5A welding processing device for an elevator car includes a fixed frame 1, which is installed on an external device. An adjustment mechanism is provided on the fixed frame 1, comprising two slide rails 2, each mounted on one side of the fixed frame 1. Sliding blocks 3 are slidably mounted on each of the two slide rails 2, and a movable frame 4 is mounted on each pair of sliding blocks 3. Fixed tubes 5 are threaded onto both sides of each movable frame 4. A top tube 6 is slidably mounted coaxially within the fixed tube 5, abutting against the side wall of the fixed frame 1. A spring 7 is mounted on the top tube 6, and a follower plate 8 is mounted at the other end of the spring 7. A telescopic tube 16 is slidably installed within the fixed tube 5, and the follower plate 8 and the top tube 6 are slidably connected within the telescopic tube 16. The side wall of the telescopic tube 16 is evenly spaced... Multiple annular grooves 9 are provided at intervals. An elastic sheet 17 is installed on the inner wall of the fixed tube 5 and is stuck in the annular groove 9. A fixed block 10 is coaxially provided on the telescopic tube 16. A through hole 11 is provided in the fixed block 10. A screw 18 is threadedly connected to the through hole 11 and abuts against the follower plate 8. A telescopic plate 19 is coaxially installed on the telescopic tube 16 and the fixed block 10 is installed and connected to the telescopic plate 19. Multiple lateral grooves 12 are equally spaced on the outer wall of the telescopic tube 16. A synchronization plate 13 is slidably provided in each of the multiple lateral grooves 12. A synchronization ring 14 is installed at one end of the synchronization plate 13 and is slidably connected to the telescopic tube 16. A push plate 15 is provided at the other end of the synchronization plate 13 and is slidably connected to the telescopic tube 16.

[0032] In this embodiment, when welding is required for different elevator cars, since different elevator cars have different sizes, it is necessary to adjust the position of multiple movable frames 4. Since the slider 3 is slidably connected to the slide rail 2, multiple movable frames 4 can be adjusted to meet the size. Then, the elevator car and the movable frame 4 are fixed. By pressing the telescopic plate 19, the screw 18 is driven to push against the follower plate 8, so that the spring 7 pushes against the top tube 6. At this time, the top tube 6 abuts against the side wall of the fixed frame 1, thus ensuring the pre-fixing effect. The movable elastic piece 17 locking the telescopic tube 16 will be stuck on different annular grooves 9, thereby completing the fixing effect.

[0033] More specifically, when long-term fixation is required after pre-fixation, a greater thrust is applied by rotating screw 18, thereby ensuring the stability of the fixation.

[0034] In summary, when the overall equipment is in use or operation: when welding is required for different elevator cars, since different elevator cars have different sizes, it is necessary to adjust the position of multiple moving frames 4. Since the slider 3 is slidably connected to the slide rail 2, multiple moving frames 4 can be adjusted to meet the size. Then, the elevator car and the moving frame 4 are fixed. By pressing the telescopic plate 19, the screw 18 is driven to push against the follower plate 8, so that the spring 7 pushes against the top tube 6. At this time, the top tube 6 abuts against the side wall of the fixed frame 1, thus ensuring the pre-fixing effect. The moving elastic piece 17 locking the telescopic tube 16 will be stuck in different annular grooves 9, thus completing the fixing effect. After the pre-fixing is completed, when long-term fixing is required, the screw 18 is rotated to apply a greater thrust, thereby ensuring the stability of the fixing.

[0035] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A welding processing device for an elevator car, comprising a fixing frame (1), characterized in that: The fixed frame (1) is installed on an external device. The fixed frame (1) is provided with an adjustment mechanism. The adjustment mechanism includes a slide rail (2). There are two slide rails (2), and the two slide rails (2) are respectively installed on both sides of the fixed frame (1). Sliding blocks (3) are slidably provided on the two slide rails (2). A moving frame (4) is provided on each pair of sliding blocks (3). A fixed tube (5) is threaded on both sides of the moving frame (4). A top tube (6) is slidably provided coaxially inside the fixed tube (5). The top tube (6) abuts against the side wall of the fixed frame (1). A spring (7) is provided on the top tube (6). A follower plate (8) is provided at the other end of the spring (7).

2. The welding processing device for an elevator car according to claim 1, characterized in that: A telescopic tube (16) is slidably installed inside the fixed tube (5), and the follower plate (8) and the top tube (6) are slidably connected inside the telescopic tube (16).

3. The welding processing device for an elevator car according to claim 2, characterized in that: The telescopic tube (16) has multiple annular grooves (9) evenly spaced on its side wall, and the fixed tube (5) has an elastic sheet (17) installed on its inner wall. The elastic sheet (17) is stuck in the annular groove (9).

4. The welding processing device for an elevator car according to claim 3, characterized in that: The telescopic tube (16) is coaxially provided with a fixing block (10), and a through hole (11) is provided in the fixing block (10). A screw (18) is threadedly connected in the through hole (11), and the screw (18) abuts against the follower plate (8).

5. The welding processing device for an elevator car according to claim 4, characterized in that: A telescopic disc (19) is coaxially mounted on the telescopic tube (16), and the fixing block (10) is installed and connected to the telescopic disc (19).

6. The welding processing device for an elevator car according to claim 5, characterized in that: Multiple lateral grooves (12) are equally spaced on the outer wall of the telescopic tube (16), and a synchronization plate (13) is slidably disposed in each of the multiple lateral grooves (12).

7. The welding processing device for an elevator car according to claim 6, characterized in that: A synchronization ring (14) is installed at one end of the synchronization plate (13), and the synchronization ring (14) is slidably connected to the telescopic tube (16).

8. The welding processing device for an elevator car according to claim 7, characterized in that: The other end of the synchronization plate (13) is provided with a push plate (15), which is slidably connected to the telescopic tube (16).

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