CN106334738A - Edge wrapping method and structure of wrapping press plate controlled by robot - Google Patents

Abstract

The invention discloses a method and a structure for improving the efficiency of robot hemming. One-time fast hemming is realized by setting a hemming pressing plate, and the forming quality is better than that of rollers, which combines the flexibility of robot hemming and press molding The advantage of the high production efficiency of wrapping, the present invention has very good economic benefit and practical significance.

Description

Hemming method and structure of robot-controlled cladding plate

technical field

The invention relates to the technical field of connecting inner and outer panels of automobile covering parts, in particular to a method and structure of a robot hemming device.

Background technique

Robot rolling hemming is the latest hemming technology, which can plan the corresponding hemming path for parts of different shapes through trajectory programming. The new robot hemming technology not only has a small one-time investment and low cost of equipment, but also has beautiful shape, flexible manufacturing, short debugging cycle, small working area, and most importantly, short R&D and manufacturing cycle, which improves product competitiveness and is suitable for automobiles. The rapid development of the industry is in line with the development trend of flexible body production lines in the automobile manufacturing industry. It provides a solution for the multi-model mixed line production of the door cover line, adapts to the future development trend of automobile lightweight development, and is conducive to strengthening the key core of my country's automobile manufacturing The technical equipment capability breaks the monopoly of foreign technology.

The existing robot hemming method is to use the robot to control the roller to gradually press the outer panel from 90° to 180° according to the given route, so as to realize the hemming connection between the outer panel and the inner panel, and complete a complete hemming. Generally, it is necessary to go back and forth along the hemming route for 2 or more times. Thereby greatly reducing the efficiency of robot hemming. Therefore, the current robot hemming has good flexibility, but the efficiency is not high.

Press molded hemming is to install the molded hemming equipment on a large press, one-time forming, high production efficiency, good hemming quality and appearance. For different products, molded hemming can be realized by changing different molds. However, the equipment maintenance cost of press molding and hemming is high, and the operating area is large. The development and manufacture of molds not only has high input costs, but also has a long production cycle, which is not conducive to reducing the production cost of automotive products and shortening the development cycle, so that the competitiveness of products is greatly improved. reduce.

Compared with the existing hemming technology, our invention can complete the hemming process at one time by setting the shape of the hemming platen, thereby greatly improving the efficiency of robot hemming, combining the flexibility of robot hemming and press molded hemming The production efficiency has very good economic benefits and practical significance.

The feature of hemming is a one-time wrapping plate. The state of the wrapping plate is set in advance. No adjustment is required during the wrapping process. The wrapping plate presses the outer panel to the inner panel according to a certain rhythm and time. Realize the hemming of inner and outer panels, which saves the time of robot hemming and roller adjustment, can improve the efficiency of hemming, and also has the one-time forming of press molded hemming, high production efficiency, hemming quality and appearance, and low cost Low, good flexibility.

Contents of the invention

The purpose of the present invention is to provide a robot hemming method that combines the advantages of robot hemming and press molding for the low efficiency of the existing robot hemming method and the high cost and inflexibility of press molding hemming.

In order to realize the above-mentioned invention object, the technical scheme adopted in the present invention is: control the movement of the wrapping platen by a robot, and the structure of the wrapping platen itself is very important. The flanges of the outer panels of any shape are fit together.

Compared with the prior art, the present invention has the following beneficial effects:

The invention realizes the improvement of the edge wrapping efficiency by rationally setting the edge wrap pressing plate. It has very good economic benefits.

Description of drawings

Fig. 1 is a schematic diagram of the present invention for wrapping aluminum alloys with plane straight edges. Among them, a is a schematic diagram of the structure, and b is a schematic diagram of the flange pressing of the outer panel.

Figure 1 is marked as follows:

1 edging platen, 2 outer plate, 3 platen, 4 inner plate, 5 membrane

Fig. 2 is a schematic diagram of the present invention being used for edge wrapping of flat straight-edged steel plates. Among them, a is a schematic diagram of the structure, and b is a schematic diagram of the flange pressing of the outer panel.

Figure 2 is marked as follows:

1 edging platen, 2 outer plate, 3 platen, 4 inner plate, 5 membrane

Fig. 3 is a schematic diagram of the structure of the hemming pressing plate of the present invention. Among them, a is a schematic diagram of a flat edging press plate, and b is a schematic diagram of a curved edging pressing plate.

Figure 3 is marked as follows:

1 flat edging platen, 2 edging platen unit, 3 curved edging platen

detailed description

The invention object of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example 1

As shown in Fig. 1, the present invention is used for wrapping the flat aluminum alloy plate. 1 edging platen, 2 outer plate, 3 platen, 4 inner plate, 5 membrane.

Generally, aluminum alloy piping is divided into 3 passes. The outer plate is turned at 90 degrees, and the pressing angle is generally 30, 60, and 90 degrees. The plate flanging realizes the wrapping and pressing, so as to complete the task that the traditional hemming requires a roller to go back and forth 3 times and the attitude of the roller needs to be adjusted in the middle. Therefore, the hemming efficiency is greatly improved.

Example 2

As shown in Fig. 2, the invention is used for wrapping flat straight-edge steel plates. 1 edging platen, 2 outer plate, 3 platen, 4 inner plate, 5 membrane.

Generally, the steel plate hemming is divided into 2 passes, the outer plate is turned at 90 degrees, and the pressing angle is generally 45 or 90 degrees. However, in this embodiment, the outer plate 2 is turned over by the hemming pressure plate in advance by setting the hemming pressure plate in advance. Complete the hemming, so as to complete the task of traditional hemming that requires a roller to go back and forth twice and adjust the attitude of the roller in the middle. Therefore, the hemming efficiency is greatly improved.

The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the implementation scope of the present invention. That is, all equivalent changes and modifications made according to the content of the present invention are covered by the protection scope of the claims of the present invention.

Claims (5)

1. A hemming method and structure for improving robot hemming. 2. The edge-wrapping method according to claim 1, characterized in that: the edge-wrapping pressing plate can coincide with the flanging shape of the outer panel to be wrapped. 3. The edging pressing plate according to claim 1, characterized in that: the edging pressing plate is composed of many edging pressing plate units. 4. The edging pressing plate according to claim 1 is characterized in that: controlled by a computer, the edging pressing plate units can move relative to each other, so as to adapt to different flange shapes of outer panels. 5. The edging pressing plate according to claim 1 is characterized in that: before the edging pressing plate is matched with the outer plate to be wrapped, the movement and deformation can be realized; Fast performance and fast edge wrapping on the outer panel.