Adaptive positioning tooling mechanism for automobile welding

Abstract

The utility model belongs to the technical field of automobile manufacturing, concretely relates to a kind of self-adapting positioning tooling mechanism for automobile welding, including installation base, X axial slide rail, Y axial slide rail, Z axial slide rail, connecting seat, connecting support and hook pin cylinder;The X axial slide rail is installed on the installation base, the Y axial slide rail is installed in the movable end of the X axial slide rail, the Z axial slide rail is installed in the movable end of the Y axial slide rail by the connecting seat, the connecting support is installed in the movable end of the Z axial slide rail, and the hook pin cylinder is installed on the connecting support.The self-adapting positioning tooling mechanism for automobile welding is integrated with the movement slide rail of X, Y, Z three directions, combined with sensor signal control, realizes the accurate switching of hook pin cylinder in different space positions, and successfully solves the limitation of traditional single vehicle type special tooling.

Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing technology, and specifically relates to an adaptive positioning tooling mechanism for automobile welding. Background Technology

[0002] In the automotive welding production field, precise positioning of the vehicle body bottom is a crucial step in ensuring welding quality and production consistency. Currently, the industry generally adopts a "single-model dedicated tooling" model for positioning the vehicle body bottom. This means that a dedicated positioning tooling is designed separately for the body structure characteristics of different vehicle models. By precisely matching the tooling with the positioning holes and contours of the specific vehicle model's bottom, stable clamping and positioning of the body panels are achieved during the welding process, thereby ensuring the consistency of welding operations for a single vehicle model.

[0003] However, this traditional model has significant drawbacks: First, the tooling positioning structure is complex. Due to the need to strictly adapt to the positioning requirements of specific vehicle models, the structural design of each tooling set needs to be specifically matched to the positioning hole positions and clamping point distribution of the body panels, resulting in a cumbersome overall tooling structure. Second, the number and types of tooling are enormous. Different vehicle models require independent tooling, which not only significantly increases design and manufacturing costs but also makes the storage and management of tooling more difficult. Third, vehicle model switching is inconvenient. When changing vehicle models during production, the entire set of dedicated tooling needs to be replaced manually or mechanically, which takes a long time and seriously affects the continuous operation efficiency of the production line. Fourth, the storage and use of multiple sets of tooling require a large amount of workshop space, which is not conducive to the compact layout of the production line and the improvement of space utilization.

[0004] Therefore, for multi-model co-production scenarios, there is an urgent need for a tooling mechanism that can achieve adaptive positioning switching between different models to solve the problems of high cost, difficult switching, and large footprint of traditional dedicated tooling. Utility Model Content

[0005] The purpose of this invention is to provide an adaptive positioning tooling mechanism for automotive welding to solve the problems existing in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adaptive positioning tooling mechanism for automotive welding, comprising a mounting base, an X-axis slide rail, a Y-axis slide rail, a Z-axis slide rail, a connecting seat, a connecting bracket, and a hook cylinder; the X-axis slide rail is mounted on the mounting base, the Y-axis slide rail is mounted on the movable end of the X-axis slide rail, the Z-axis slide rail is mounted on the movable end of the Y-axis slide rail via the connecting seat, the connecting bracket is mounted on the movable end of the Z-axis slide rail, and the hook cylinder is mounted on the connecting bracket.

[0007] Preferably, it further includes an X-axis moving cable chain, a Y-axis moving cable chain, and a Z-axis moving cable chain, wherein the X-axis moving cable chain is connected to the X-axis slide rail, the Y-axis moving cable chain is connected to the Y-axis slide rail, and the Z-axis moving cable chain is connected to the Z-axis slide rail.

[0008] Preferably, one end of the X-axis moving cable chain is connected to the mounting base, and the other end is connected to the movable end of the X-axis slide rail; one end of the Y-axis moving cable chain is connected to the movable end of the X-axis slide rail, and the other end is connected to the movable end of the Y-axis slide rail; one end of the Z-axis moving cable chain is connected to the movable end of the Y-axis slide rail, and the other end is connected to the movable end of the Z-axis slide rail.

[0009] Preferably, the number of hook cylinders is at least one, and they are distributed at intervals along the length direction of the connecting bracket.

[0010] The beneficial effects of this utility model are as follows: This adaptive positioning tooling mechanism for automotive welding integrates moving slide rails in the X, Y, and Z directions, combined with sensor signal control, to achieve precise switching of the hook cylinder in different spatial positions, successfully overcoming the limitations of traditional single-model dedicated tooling. One set of mechanisms can meet the positioning requirements of the bottom of multiple vehicle models, eliminating the need to design and manufacture dedicated tooling for each model, significantly reducing the number and types of tooling, lowering design and manufacturing costs, and saving space occupied by the equipment.

[0011] With its simple structure and clear working principle, this mechanism uses a slide rail to move the hook cylinder and sensor feedback signals to achieve adaptive switching. It is easy to operate and provides precise positioning, effectively ensuring consistency in welding different vehicle models. Its convenient functionality not only simplifies tooling switching processes on multi-vehicle production lines and improves production efficiency, but also provides strong support for flexible production in automotive welding lines. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a perspective view of the present invention from another direction. Detailed Implementation

[0013] In the description of this disclosure, it should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0014] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0015] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0016] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0017] This utility model discloses an adaptive positioning tooling mechanism for automotive welding, as shown in Figure 1. Its specific structure includes a mounting base 1, an X-axis slide rail 2, a Y-axis slide rail 3, a Z-axis slide rail 4, an X-axis moving cable chain 5, a Y-axis moving cable chain 6, a Z-axis moving cable chain 7, a connecting bracket 8, and a hook cylinder 9.

[0018] The X-axis slide rail 2 is fixedly mounted on the mounting base 1 and can be driven to reciprocate along the X-axis direction. The fixed end of the Y-axis slide rail 3 is connected to the movable end of the X-axis slide rail 2 and moves synchronously with the movable end of the X-axis slide rail 2. It can also drive its movable end to reciprocate along the Y-axis direction. The Z-axis slide rail 4 is connected to the movable end of the Y-axis slide rail 3 through a connecting seat (not shown in the figure) and moves synchronously with the movable end of the Y-axis slide rail 3. It can also drive its movable end to reciprocate along the Z-axis direction. One end of the connecting bracket 8 is fixedly connected to the movable end of the Z-axis slide rail 4, and the other end is equipped with a hook cylinder 9. The hook cylinder 9 can be adjusted synchronously in the X, Y, and Z directions along with the connecting bracket 8.

[0019] In addition, the X-axis moving cable chain 5 is set parallel to the X-axis slide rail 2, with one end connected to the mounting base 1 and the other end connected to the movable end of the X-axis slide rail 2, for storing the cable of the X-axis slide rail 2 drive component; the Y-axis moving cable chain 6 is set parallel to the Y-axis slide rail 3, with one end connected to the movable end of the X-axis slide rail 2 and the other end connected to the movable end of the Y-axis slide rail 3, for storing the cable of the Y-axis slide rail 3 drive component; the Z-axis moving cable chain 7 is set parallel to the Z-axis slide rail 4, with one end connected to the movable end of the Y-axis slide rail 3 and the other end connected to the movable end of the Z-axis slide rail 4, for storing the cable of the Z-axis slide rail 4 drive component.

[0020] Working principle The adaptive positioning fixture mechanism operates based on feedback from sensor signals (not shown in the figure) and the coordinated motion of multi-axis slide rails, as detailed below: Initial positioning stage: When the production line needs to weld the body panels of the first vehicle model, the sensor receives the positioning signal of that vehicle model and transmits the signal to the control unit (not shown). The control unit drives the X-axis slide rail 2, Y-axis slide rail 3, and Z-axis slide rail 4 to move along the X, Y, and Z axes respectively, driving the hook cylinder 9 to move synchronously until the hook cylinder 9 reaches the preset position of the positioning hole of the body panel of that vehicle model; at the same time, the X-axis moving cable chain 5, Y-axis moving cable chain 6, and Z-axis moving cable chain 7 extend and retract synchronously with the moving ends of the corresponding slide rails to avoid cable tangling or pulling.

[0021] Clamping and Welding Stage: After the hook cylinder 9 moves into position, it waits for the body panel to be placed in place by the conveyor device (not shown). Once the panel is in place, the sensor detects the panel's position and sends a feedback signal. The hook cylinder 9 then activates and extends its piston rod, inserting it into the positioning hole of the panel and clamping it, completing the positioning and fixing of the vehicle model. Subsequently, the robot performs welding operations on the panel.

[0022] Switching and Cyclic Stage: After the first vehicle model is welded, the hook cylinder 9 retracts its piston rod, releasing the plate, and the conveying device sends the plate away. When the control unit receives the positioning signal for the second vehicle model, the above steps are repeated: X-axis slide rail 2, Y-axis slide rail 3, and Z-axis slide rail 4 adjust the spatial position of the hook cylinder 9 according to the new position signal. After the second vehicle model plate is in place, the hook cylinder 9 clamps and positions it again, realizing adaptive switching welding of multiple vehicle models on the same tooling mechanism.

[0023] Based on the above structure and working principle, this mechanism can complete the positioning welding of different vehicle models without changing tooling, effectively simplifying the production process and improving the flexibility of the production line.

[0024] For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. An adaptive positioning tooling mechanism for automotive welding, characterized in that, It includes a mounting base, an X-axis slide rail, a Y-axis slide rail, a Z-axis slide rail, a connecting seat, a connecting bracket, and a hook cylinder; the X-axis slide rail is mounted on the mounting base, the Y-axis slide rail is mounted on the movable end of the X-axis slide rail, the Z-axis slide rail is mounted on the movable end of the Y-axis slide rail via the connecting seat, the connecting bracket is mounted on the movable end of the Z-axis slide rail, and the hook cylinder is mounted on the connecting bracket.

2. The adaptive positioning fixture mechanism for automotive welding according to claim 1, characterized in that, It also includes an X-axis moving cable chain, a Y-axis moving cable chain, and a Z-axis moving cable chain. The X-axis moving cable chain is connected to the X-axis slide rail, the Y-axis moving cable chain is connected to the Y-axis slide rail, and the Z-axis moving cable chain is connected to the Z-axis slide rail.

3. The adaptive positioning fixture mechanism for automotive welding according to claim 2, characterized in that, One end of the X-axis moving cable chain is connected to the mounting base, and the other end is connected to the movable end of the X-axis slide rail; one end of the Y-axis moving cable chain is connected to the movable end of the X-axis slide rail, and the other end is connected to the movable end of the Y-axis slide rail; one end of the Z-axis moving cable chain is connected to the movable end of the Y-axis slide rail, and the other end is connected to the movable end of the Z-axis slide rail.

4. The adaptive positioning fixture mechanism for automotive welding according to claim 1, characterized in that, The number of hook cylinders is at least one, and they are distributed at intervals along the length direction of the connecting bracket.

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