On-line arcuation device of bumper
A technology for automobile bumpers and bumpers, which is applied in the field of mechanical deformation processing, can solve problems such as easy to appear wrinkles, sharpness, and affect product appearance, and achieve the effects of multiple force points, elimination of vibration, and low resistance
Inactive Publication Date: 2010-08-11
LINGYUN INDAL CORP
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Problems solved by technology
The disadvantage of this technology is: when the rolling arc device rolls the bumper product with a radius of less than 3500mm, it is very easy to have wrinkles on the inner arc surface and side of the product; when the bumper product with a radius of less than 3000mm is rolled, the wrinkles have become It is inevitable, and the smaller the radius, the more severe the wrinkles will be, which will seriously affect the appearance of the product and the operation of the subsequent process
Judging from the current specification distribution of automobile bumpers, bumper products with a radius of less than 3000mm account for more than two-thirds. Therefore, online arc forming has become a bottleneck restricting the production of rolled bumpers.
Method used
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[0017] see figure 1 , figure 2 , the online arc forming device 1 of the present invention includes a bracket 3, a forming block 7 and a core 8, the upper part of the bracket 3 is provided with a bracket cover plate 3-1, and the two sides are provided with bracket side plates 3-2. Two rows of adjusting screw rods 5 are arranged at the bracket cover plate 3-1, and each adjusting screw rod is provided with a slider 6 matched with its thread, which is supported by the slider 6 on the adjusting screw rod corresponding to every two positions in the two rows of adjusting screw rods A molding block 7, the adjustment of slide block high and low position can realize by rotating adjusting screw rod. There are trunnions 7-3 at both ends of the forming block, and the trunnion is rotatably matched with the shaft hole of the slider, so that the forming block can rotate freely relative to the slider, so as to ensure that the forming block can adjust its angle according to the arc of the bum...
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Abstract
The invention discloses an on-line arcuation device of a bumper, which is used for solving the problem of bumpers with small processing arcuation radius. The technical scheme is as follows: the on-line arcuation device comprises a bracket, a form block and a core, wherein a cover plate on the upper part of the bracket is provided with two rows of adjusting screw rods, and each adjusting screw rod is provided with a sliding block in screw-thread fit with the adjusting screw rod; two ends of the form block are in running fit with the axle hole of the sliding block; the form block is a form working face along the axial middle part; the cross section of the form working face is a profiled hole matched with the profile of the cross section of the bumper; the bumper passes through the profiled hole; the core is arranged in the bumper; and the cross section of the form working face is the a special-shaped hole matched with the profile of the cross section of the bumper. The invention has small arcuation resistance, a great quantity of force application points and favourable form surface quality, can finish product arcuation which has complex cross section shape and radius of 1800 mm on line.
Description
technical field [0001] The invention relates to a processing device for automobile parts, in particular to an online arc forming device for automobile bumpers, and belongs to the technical field of mechanical deformation processing. Background technique [0002] Rolling processing is one of the main methods of manufacturing automobile bumpers at present. During processing, the bumper is first rolled into a straight shape with a specific cross-sectional shape, and then the straight shape is formed by a roller arc device composed of multiple sets of rollers. The bars are rolled in an arc on the wire and cut off at the end. At present, the bumper arc forming process adopts the roller arc forming device, that is, the bumper products with different arcs can be bent by adjusting the relative position of several sets of rollers in the roller arc device. The disadvantage of this technology is: when the rolling arc device rolls the bumper product with a radius of less than 3500mm, i...
Claims
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IPC IPC(8): B21D7/00
Inventor 李彦波韩振宇刘东海
Owner LINGYUN INDAL CORP