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A Production Process of the Rear Door Hinge Plate of Light Truck Cab

A production process and rear door technology, which is applied to hinges with pins, hinges, door/window accessories, etc., can solve problems such as unstable dimensional accuracy, and achieve the effects of facilitating subsequent operations, preventing deformation, and unifying benchmarks

Active Publication Date: 2017-05-10
SINO TRUK JINAN POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the impact of springback and thermal deformation of the product during bending and welding, the dimensional accuracy of the product is very unstable

Method used

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  • A Production Process of the Rear Door Hinge Plate of Light Truck Cab
  • A Production Process of the Rear Door Hinge Plate of Light Truck Cab
  • A Production Process of the Rear Door Hinge Plate of Light Truck Cab

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] see Figure 1-12 , a production process of a light truck cab rear door hinge plate, comprising the following steps:

[0037] (1) Material preparation: select cuboid steel plate according to the size of the rear door hinge plate of the light truck;

[0038] (2) Processing chamfering: use ordinary milling machine to process chamfering at each corner of the steel plate, the chamfering is 1.5X45 degrees;

[0039] (3) Bending: Bending the steel plate at one end; using a press, bending and forming in the overall mold; positioning with the two long sides of the cuboid steel plate during bending.

[0040] (4) Weld the round bar on the inside of the front end of the bent steel plate;

[0041] (5) Process the two ends of the round bar; use double-sided end milling to process it into a plane, and the two ends of the round bar are flush with the steel plate;

[0042] (6) Process the pin hole on the round bar; use a reaming machine or a boring machine to process the pin hole, and...

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PUM

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Abstract

The invention discloses a production process for a hinge plate on a rear door of a light truck driving cab. The production process comprises the following steps: preparing materials, machining chamfers, bending, welding a round bar and machining the two end faces of the round bar; machining a pin shaft hole and machining two threaded holes in the round bar. The production process has the beneficial effects that the influences of resilience and thermal deformation on the product size accuracy in bending and welding processes are eliminated; the pin shaft hole is machined after the round bar is welded, so that the influence of welding on the position of the pin shaft hole is further lowered, the accuracy of a product is greatly increased, and convenience is brought to subsequent operation; the standard in a machining process is uniform, so that the accuracy is increased; the product yield is increased from 50 percent to 100 percent. The original required product inspection is changed into current casual inspection, and the casual inspection rate is 1 percent, so that time is saved, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of punching and welding, in particular to a production process of a rear door hinge plate of a cab of a light truck. Background technique [0002] General light truck rear door hinge products such as figure 1 As shown, the front end is a welded structure, and the rear part is a cold plate stamping part. The general processing technology is: material preparation → chamfering → bending → processing threaded holes → welding front end bushing. Due to the influence of springback and thermal deformation of the product during bending and welding, the dimensional accuracy of the product is very unstable. In order to solve the deficiencies of the current technology, a new processing method is proposed. Contents of the invention [0003] In order to solve the deficiency of the current technology, the embodiment of the present invention provides a production technology of the rear door hinge plate of the light tru...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00E05D3/02E05D5/062
Inventor 李相伟严肃湛宣杰李冀
Owner SINO TRUK JINAN POWER