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Machining process of hole in longitudinal chassis beam

A processing method and longitudinal beam technology, applied in the direction of manufacturing tools, vehicle parts, other manufacturing equipment/tools, etc., can solve the problems of equipment investment, large mold investment, harsh working environment, narrow processing range, etc., and achieve high production efficiency, The effect of reducing post-investment and improving production efficiency

Inactive Publication Date: 2005-12-07
CHINA NATIONAL HEAVY DUTY TRUCK GROUP
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  • Abstract
  • Description
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Problems solved by technology

The drilling trolley drilling template drilling method requires less investment in equipment and a wide range of processing, but the accuracy is low, the cost of templates in the later stage is high, and the production efficiency is low and the working environment is harsh. It is only suitable for small batch production; The method of on-machine punching requires large investment in equipment and molds, narrow processing range, and requires mass production

Method used

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  • Machining process of hole in longitudinal chassis beam
  • Machining process of hole in longitudinal chassis beam

Examples

Experimental program
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Effect test

Embodiment

[0022] Embodiment: As shown in the figure, the steps of the method are as follows: ① first install the electromagnetic chuck in the feeding device on the gantry support 3 through the rails, and can move horizontally and up and down on the gantry 3, and the suction cup absorbs the workpiece 1 and rises to a certain level. After moving horizontally to the feeding rail, lower the workpiece and return to the original station, the drag trolley 4 installed on the track drags the workpiece to the station of the hydraulic punching machine 5; ② CNC punching The hydraulic punching machine 5 of the device follows the instructions of the punching CNC cabinet input into the numerical control program in advance, and the punch of the hydraulic punching machine 5 implements transposition, positioning, and punching; The material trolley 4 drags the workpiece 1 to the conveying part, releases the workpiece 1 and returns, the chain of the conveying part conveys the workpiece to the feeding track ...

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Abstract

The present invention relates to automobile manufacture technology. The machining process of hole in longitudinal chassis beam includes the following steps: feeding the longitudinal chassis beam to the site of hydraulic hole punching apparatus; punching the ventral side hole in digitally controlled hydraulic punch based on the set program and with proper punching tool; conveying the longitudinal chassis beam with the transition apparatus to the site of digitally controlled driller; drilling the airfoil surface hole; conveying the longitudinal chassis beam to the tip cutting site; and cutting tips of the hole in a tip cutter to finish the machining.the present invention has improved working environment, high production efficiency and stable product quality.

Description

(1) Technical field [0001] The invention relates to a processing technology for a longitudinal beam hole of an automobile frame, belonging to the technical field of automobile processing technology. (2) Background technology [0002] In the production of heavy-duty trucks, many holes need to be processed for the assembly of frame longitudinal beams, and the surface roughness and tolerance of the holes are very strict. At present, the most used techniques are: the method of using a drilling trolley to drill the template to drill holes and the method of punching holes on a large press using a punching die. The drilling trolley drilling template drilling method requires less investment in equipment and a wide range of processing, but the accuracy is low, the cost of templates in the later stage is high, and the production efficiency is low and the working environment is harsh. It is only suitable for small batch production; The method of on-machine punching requires large inve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P17/00B23P23/00B62D21/00
Inventor 李永俊陈永江朱巧莲
Owner CHINA NATIONAL HEAVY DUTY TRUCK GROUP
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