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Longitudinal member female die and longitudinal member manufacturing method

A longitudinal beam and die technology, applied in manufacturing tools, vehicle parts, metal processing equipment, etc., can solve problems such as affecting the beauty of the frame, difficult installation of leaf spring brackets, affecting the production efficiency of the frame, etc. Effect

Active Publication Date: 2014-12-03
BEIQI FOTON MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The defect of the above-mentioned prior art is that the side 23 of the longitudinal beam is provided with a mounting hole 24 for assembling the leaf spring bracket, which is formed by figure 1 It can be seen that the multi-material area b is very close to the installation hole 24, and the consequence is that the increase in the size of the opening a of the longitudinal beam caused by the rebound of the multi-material area b will make the assembly hole on the leaf spring support and the longitudinal beam The mounting holes 24 on the side 23 cannot be aligned. Therefore, it is very difficult to install the leaf spring bracket. Usually, the holes on the side 23 need to be repaired before installation, which not only affects the production efficiency of the frame assembly, but also affects the appearance of the frame.

Method used

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  • Longitudinal member female die and longitudinal member manufacturing method
  • Longitudinal member female die and longitudinal member manufacturing method
  • Longitudinal member female die and longitudinal member manufacturing method

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0028] image 3 It is a schematic diagram of the improved structure of the vehicle frame longitudinal beam die of the present invention, as image 3 As shown, the die in this embodiment may include a lower mold base 31 , a ejector 32 located in the lower die base 31 , and an ejector backing plate 33 , as well as inserts arranged along the edge line 34 of the die.

[0029] The edge line 34 of above-mentioned die can refer to image 3 As shown, it may include a first area a, a second area b, and an inclined plane transition area c between them; wherein, at the position corresponding to the first area a, a leaf spring bracket will be provided on the side of the formed longitudinal beam Mounting holes.

[0030] In this embodiment, the improvement relative to the prior art is that the height of the cutting edge line 34 in the bevel transition region c and part of the first region a is reduced, and after the reduction, it becomes an improved cutting edge line 35, and the improved ...

Embodiment 2

[0039] Figure 4 It is a schematic flow chart of an embodiment of the method for manufacturing a vehicle frame longitudinal beam using a die in the present invention. The method in this embodiment can be implemented by using the die for the longitudinal beam described in any embodiment of the present invention, and the method can be implemented in combination with the die Understand the explanation in the example. Such as Figure 4 As shown, the method may include the following steps:

[0040]Step 401, placing the raw materials for manufacturing the frame rails on the inserts arranged along the edge line of the die;

[0041] Wherein, the cutting edge line of the concave mold may include a first area, a second area, and a slope transition area between the first area and the second area; For the longitudinal beam corresponding to the position of the first region, it is necessary to provide mounting holes for leaf spring brackets on the side of the longitudinal beam.

[0042]...

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Abstract

The invention provides a longitudinal member female die and a longitudinal member manufacturing method. The longitudinal member female die comprises an insert arranged along a cutting edge line of the female die, wherein the cutting edge line of the female die comprises a first area, a second area and an oblique plane transition area, a position which corresponds to the first area is used for arranging of a plate spring support installation hole, and the oblique plane transition area is located between the first area and the second area. A cutting edge line of the oblique plane transition area and part of a cutting edge line of the first area are arranged lower than a male die pressing face when a male die is attached to the female die. According to the longitudinal member female die and the longitudinal member manufacturing method, entering mold sequence of raw materials is controlled by reducing the height of the cutting edge line of the female die, so that materials in an original multi-material area can be distributed to an area with reduced cutting edge line in a forming process, and the problem that opening size of a longitudinal member is affected by springback of the original multi-material area is solved, the opening size of the longitudinal member is controlled, and assembly efficiency of a car frame is improved.

Description

technical field [0001] The invention relates to the mold forming technology of the longitudinal beam of the tractor frame, in particular to a concave mold of the longitudinal beam of the vehicle frame and a manufacturing method of the longitudinal beam of the vehicle frame. Background technique [0002] figure 1 It is a schematic diagram of the frame structure in the prior art. The frame is a structure with a wide front and a narrow rear. The width of the front end of the frame is 60mm different from the width of the rear end of the frame; beam, ie figure 1 A-A in the section is where the section is located. figure 2 for figure 1 The A-A sectional view in the figure shows the cross-sectional structure of the frame longitudinal beam, which is a thick plate part of the channel double-layer plate structure, which includes a longitudinal beam layer 21 and a lining beam layer 22. figure 2 The a shown in indicates the stringer opening. [0003] In the prior art, during the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D37/10B21D53/88
Inventor 樊宗孝王晓军刘秀清刘建军
Owner BEIQI FOTON MOTOR CO LTD