Elevator lower beam bracket welding tooling

Abstract

The utility model discloses elevator lower beam bracket welding frock, including frame, the inside rotation of frame is installed with conveying mechanism, the both sides of frame top movable installation of conveying mechanism are installed with limit mechanism, the top movable installation of frame has mobile mechanism, the inside installation of mobile mechanism has clamping mechanism, the outside installation of clamping mechanism clamping end has the fan, the utility model discloses through fan, connecting pipe no.

Description

Technical Field

[0001] This utility model relates to the field of elevator manufacturing technology, specifically to welding fixtures for elevator lower beam brackets. Background Technology

[0002] The elevator lower beam bracket is a key component in the elevator car structure, playing a vital role in supporting the weight of the car, transmitting loads, and ensuring operational stability. During the elevator manufacturing process, as a critical load-bearing component, the lower beam bracket requires welding fixtures to assist in welding in order to ensure its welding accuracy and efficiency.

[0003] Tooling can assist in the welding of elevator lower beam brackets. However, existing traditional tooling positioning components are usually designed based on the principle of planar positioning. The working surfaces of the positioning blocks and clamping blocks are mostly fixed planar structures. In actual elevator manufacturing, in order to meet different installation requirements and spatial layout constraints such as the installation of rollers, the welding of elevator lower beam brackets may involve curved surfaces, stepped shapes, or irregular protrusions. When facing elevator lower beam brackets with non-planar shapes such as curved surfaces, stepped shapes, or irregular protrusions, it is difficult to form a complete and tight fit with the workpiece surface. Since the tooling cannot effectively fix non-planar workpieces, operators often need to spend extra time and effort to manually assist in fixing them, which not only reduces welding efficiency but also increases labor intensity, and thus affects the welding quality of the elevator lower beam brackets in the later stages. Summary of the Invention

[0004] The purpose of this utility model is to provide a welding fixture for elevator lower beam brackets to solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a welding fixture for an elevator lower beam bracket, including a frame; a conveying mechanism is rotatably installed inside the frame, and limiting mechanisms are installed on both sides of the frame above the conveying mechanism; a moving mechanism is movably installed on the top of the frame, and a clamping mechanism is installed inside the moving mechanism; a fan is installed on the outer side of the clamping end of the clamping mechanism; a connecting pipe is installed at the output end of the fan; a valve is installed on the outer side of the connecting pipe; and an auxiliary clamp is installed at one end of the connecting pipe on the inner wall of the clamping end of the clamping mechanism.

[0006] Preferably, the limiting mechanism includes a telescopic rod disposed above the conveying mechanism at one end of the frame, and a limiting plate is installed at the moving end of the telescopic rod.

[0007] Preferably, the moving mechanism includes a transverse linear guide rail mechanism disposed on both sides of the frame surface above the limiting plate, and a support frame is mounted on the top of the transverse linear guide rail mechanism.

[0008] Preferably, a vertical linear guide mechanism is movably installed on the inner wall of the support frame, and a connecting frame is movably installed on one side of the vertical linear guide mechanism.

[0009] Preferably, the clamping mechanism includes a bidirectional screw mechanism disposed inside the connecting frame, and two sets of clamping plates are driven and installed on the outer side of the bidirectional screw mechanism, with a protective layer installed on the adjacent side of the clamping plates.

[0010] Preferably, a micro switch is installed on the inner wall of the protective layer, a connecting pipe is installed at the bottom of the clamping plate, and a valve is installed on the outer side of the connecting pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses a fan, a connecting pipe, a valve, and an auxiliary clamp in combination. When the valve is opened, the airflow generated by the fan is delivered to the auxiliary clamp through the connecting pipe. After being inflated, the auxiliary clamp can further conform to the surface of the workpiece, playing a role in auxiliary fixation. It is especially suitable for clamping workpieces with uneven surfaces, enhancing clamping stability. After welding is completed, the auxiliary clamp is deflated to facilitate the quick removal of the workpiece, which can improve its working efficiency and thus improve the welding quality of the elevator lower beam bracket in the later stage.

[0013] 2. This utility model uses a micro switch, connecting pipe 2, and valve 2 in conjunction. When the micro switch contacts the surface of the workpiece and generates a preset pressure, it triggers a change in the switch state. At this time, valve 1 on the outside of connecting pipe 1 is closed, and valve 2 on the outside of connecting pipe 2 is opened. This allows the air blown by the fan to remove foreign objects adhering to the outer surface of the elevator lower beam bracket, preventing impurities from affecting the clamping accuracy and workpiece surface quality. At the same time, it can cool the welded elevator lower beam bracket, thus facilitating its use by personnel. Attached Figure Description

[0014] Figure 1 This is a side perspective view of the present invention;

[0015] Figure 2 This is a front perspective view of the present utility model;

[0016] Figure 3 This is a schematic diagram of the side structure of the clamping plate of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the clamping plate part of this utility model.

[0018] In the diagram: 1. Frame; 2. Conveying mechanism; 3. Limiting mechanism; 301. Telescopic rod; 302. Limiting plate; 4. Moving mechanism; 401. Horizontal linear guide mechanism; 402. Support frame; 4021. Vertical linear guide mechanism; 4022. Connecting frame; 5. Clamping mechanism; 501. Bidirectional screw mechanism; 502. Clamping plate; 503. Protective layer; 6. Fan; 601. Connecting pipe one; 602. Valve one; 603. Auxiliary clamping; 7. Micro switch; 701. Connecting pipe two; 702. Valve two. Detailed Implementation

[0019] 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.

[0020] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments;

[0021] Example:

[0022] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Please refer to the accompanying drawings. Figures 1 to 4 Please refer to the welding fixture for the elevator lower beam bracket provided in this application. Figure 1 , Figure 2 , Figure 3 and Figure 4 The system includes a frame 1; a conveying mechanism 2 is rotatably installed inside the frame 1; a limiting mechanism 3 is installed on both sides of the frame 1 above the conveying mechanism 2; a moving mechanism 4 is movably installed on the top of the frame 1; a clamping mechanism 5 is installed inside the moving mechanism 4; a fan 6 is installed on the outside of the clamping end of the clamping mechanism 5; a connecting pipe 601 is installed at the output end of the fan 6; a valve 602 is installed on the outside of the connecting pipe 601; an auxiliary clamping 603, which is an airbag, is installed on the inner wall of the clamping end of the clamping mechanism 5 at one end of the connecting pipe 601.

[0023] Specifically, the frame 1 provides a stable mounting base for components such as the conveying mechanism 2, the limiting mechanism 3, and the moving mechanism 4. The conveying mechanism 2 consists of a motor, a conveyor belt, and a drive roller. The motor drives the conveyor belt to automatically transport the elevator lower beam bracket to the welding station. When the elevator lower beam bracket is transported to the welding station, the limiting mechanism 3 precisely limits the workpiece to a designated position to prevent it from shifting or shaking during the transport process. Then, the moving mechanism 4 precisely adjusts the clamping mechanism 5 to a suitable position so that the clamping mechanism 5 clamps and fixes some components of the elevator lower beam bracket. Then, by opening the valve 602, the airflow generated by the fan 6 is transported to the auxiliary clamp 603 through the connecting pipe 601. After being inflated, the auxiliary clamp 603 can further conform to the surface of the workpiece, playing an auxiliary fixing role. It is especially suitable for clamping workpieces with uneven surfaces, enhancing clamping stability. After welding is completed, the auxiliary clamp 603 is deflated to facilitate the quick removal of the workpiece, improving work efficiency.

[0024] Please refer to this carefully. Figure 1 and Figure 2 The limiting mechanism 3 includes a telescopic rod 301 located above the conveying mechanism 2 at one end of the frame 1, and a limiting plate 302 is installed on the moving end of the telescopic rod 301.

[0025] Specifically, in order to limit and fix the elevator lower beam bracket structure to be welded, when the elevator lower beam bracket is transported to the welding station by the conveying mechanism 2, the telescopic rod 301 works, and its telescopic end drives the limiting plate 302 to move to both sides of the bracket until the limiting plate 302 is tightly attached to the side of the lower beam bracket. At this time, the limiting plate 302 can effectively limit the horizontal displacement of the lower beam bracket, prevent it from shifting due to inertia, vibration and other factors during the conveying process, and ensure that the bracket always maintains a precise position when entering the welding process.

[0026] Please refer to this carefully. Figure 1 and Figure 2 The moving mechanism 4 includes a transverse linear guide rail mechanism 401 disposed on both sides of the surface of the frame 1 above the limit plate 302, and a support frame 402 is installed on the top of the transverse linear guide rail mechanism 401.

[0027] Please refer to this carefully. Figure 1 and Figure 2 A vertical linear guide mechanism 4021 is movably installed on the inner wall of the support frame 402, and a connecting frame 4022 is movably installed on one side of the vertical linear guide mechanism 4021.

[0028] Specifically, in order to adjust the position of the clamping mechanism 5, the connecting frame 4022 can support the clamping mechanism 5 on one side. The horizontal linear guide mechanism 401 is set on both sides of the surface of the frame 1 above the limiting plate 302. The use of linear rolling guide is the existing technology. The horizontal position of the support frame 402 can be adjusted by the horizontal linear guide mechanism 401 to ensure that the subsequent components can accurately correspond to the key parts of the bracket. The vertical linear guide mechanism 4021 is installed on the inner wall of the support frame 402 and has the same structure as the horizontal linear guide mechanism 401. It realizes the vertical movement adjustment of the clamping mechanism 5, so that the clamping mechanism 5 can be accurately positioned in the vertical direction according to the height difference of the lower beam bracket and the welding process requirements. Whether it is top welding of a shorter small bracket or side welding of a taller large bracket, it can ensure that the welding tools or auxiliary equipment are at the optimal working height, effectively improving the convenience and accuracy of welding operation.

[0029] Please refer to this carefully. Figure 1 , Figure 2 , Figure 3 and Figure 4 The clamping mechanism 5 includes a bidirectional screw mechanism 501 disposed inside the connecting frame 4022. Two sets of clamping plates 502 are driven and installed on the outer side of the bidirectional screw mechanism 501. A protective layer 503 is installed on the side of the clamping plates 502 that are close to each other. The bidirectional screw mechanism 501 consists of a motor and a bidirectional screw. The output end of the motor is connected to the bidirectional screw.

[0030] Specifically, in order to clamp and fix the welded elevator lower beam bracket components, when the bidirectional screw mechanism 501 is working, it will drive the two sets of clamping plates 502 to move closer to each other, thus clamping and fixing the elevator lower beam bracket components. This synchronous moving mode, which moves towards or away from each other, can quickly and accurately adapt to elevator lower beam brackets of different sizes and specifications. Whether it is a narrow small part or a wide large component, it can achieve stable clamping. When clamping the elevator lower beam bracket, the two sets of clamping plates 502 tightly clamp the workpiece from both sides, restricting its displacement in the horizontal direction and ensuring that the position of the workpiece remains fixed during the welding process. The protective layer 503 is made of highly elastic and wear-resistant rubber, which can prevent the workpiece from sliding during the clamping process.

[0031] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4 A micro switch 7 is installed on the inner wall of the protective layer 503, a connecting pipe 701 is installed at the bottom of the clamping plate 502, and a valve 702 is installed on the outer side of the connecting pipe 701.

[0032] Specifically, in order to clean the outer surface of the elevator lower beam bracket, the micro switch 7 adopts a high-precision pressure sensing design. When the protective layer 503 contacts the workpiece surface and generates a preset pressure, it triggers a change in the switch state. At this time, the valve 602 on the outside of the connecting pipe 601 is closed and the valve 702 on the outside of the connecting pipe 701 is opened. This allows the air blown by the fan 6 to remove foreign objects adhering to the outer surface of the elevator lower beam bracket, preventing impurities from affecting the clamping accuracy and the surface quality of the workpiece. At the same time, it can also cool the elevator lower beam bracket after welding.

[0033] Working principle: The elevator lower beam bracket is partially placed on the conveying mechanism 2. The conveying mechanism 2 automatically transports the elevator lower beam bracket to the welding station. Simultaneously, the telescopic rod 301 operates, and its telescopic end drives the limiting plate 302 to move to both sides of the bracket until the limiting plate 302 is tightly attached to the side of the lower beam bracket. The limiting plate 302 effectively restricts the horizontal displacement of the lower beam bracket. Then, when the bidirectional screw mechanism 501 operates, it drives the two sets of clamping plates 502 to move closer together, thus clamping and fixing the elevator lower beam bracket components. When the micro switch 7 is pressed, it is triggered. When the switch state changes, valve 602 on the outside of connecting pipe 1 601 is closed, and valve 702 on the outside of connecting pipe 2 701 is opened. This allows the air blown by fan 6 to remove foreign objects adhering to the outer surface of the elevator lower beam bracket. Then, valve 602 on the outside of connecting pipe 1 601 is opened, and valve 702 on the outside of connecting pipe 2 701 is closed. The airflow generated by fan 6 is delivered to auxiliary clamp 603 through connecting pipe 1 601. After being inflated, auxiliary clamp 603 can further conform to the surface of the workpiece, playing a role in auxiliary fixation. Then, personnel can operate to weld the connection points of the two sets of elevator lower beam bracket components.

[0034] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A welding fixture for elevator lower beam bracket, comprising a frame (1); characterized in that: A conveying mechanism (2) is rotatably installed inside the frame (1). A limiting mechanism (3) is installed above the conveying mechanism (2) on both sides of the frame (1). A moving mechanism (4) is movably installed on the top of the frame (1). A clamping mechanism (5) is installed inside the moving mechanism (4). A fan (6) is installed on the outside of the clamping end of the clamping mechanism (5). A connecting pipe (601) is installed at the output end of the fan (6). A valve (602) is installed on the outside of the connecting pipe (601). An auxiliary clamp (603) is installed on the inner wall of the clamping end of the clamping mechanism (5) at one end of the connecting pipe (601).

2. The elevator lower beam bracket welding fixture according to claim 1, characterized in that: The limiting mechanism (3) includes a telescopic rod (301) located above the conveying mechanism (2) at one end of the frame (1), and a limiting plate (302) is installed on the moving end of the telescopic rod (301).

3. The elevator lower beam bracket welding fixture according to claim 2, characterized in that: The moving mechanism (4) includes a transverse linear guide rail mechanism (401) disposed on both sides of the surface of the frame (1) above the limiting plate (302), and a support frame (402) is installed on the top of the transverse linear guide rail mechanism (401).

4. The elevator lower beam bracket welding fixture according to claim 3, characterized in that: A vertical linear guide mechanism (4021) is movably installed on the inner wall of the support frame (402), and a connecting frame (4022) is movably installed on one side of the vertical linear guide mechanism (4021).

5. The elevator lower beam bracket welding fixture according to claim 4, characterized in that: The clamping mechanism (5) includes a bidirectional screw mechanism (501) disposed inside the connecting frame (4022). Two sets of clamping plates (502) are driven and installed on the outer side of the bidirectional screw mechanism (501). A protective layer (503) is installed on the side of the clamping plates (502) that are close to each other.

6. The elevator lower beam bracket welding fixture according to claim 5, characterized in that: A micro switch (7) is installed on the inner wall of the protective layer (503), a connecting pipe (701) is installed at the bottom of the clamping plate (502), and a valve (702) is installed on the outer side of the connecting pipe (701).

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