Clamp and method for turning thin-wall dish-shaped part on lathe

A thin-walled, turning technology, used in clamping, manufacturing tools, metal processing machinery parts, etc., can solve the problems of increasing machining residual material, low material utilization rate, and increasing machining difficulty, achieving efficient turning and improving machining efficiency. Remarkable and guaranteed effect of processing quality

Pending Publication Date: 2022-02-18
XIAN AEROSPACEMOTOR MACHINE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the structural characteristics of thin-walled butterfly parts and the weight of the product, there are always problems in lathe turning: ①difficulty in clamping and aligning; ②generally using vertical lathes has large limitations; ③the workpiece is difficult to manufacture and the cost is high
This method not only increases the difficulty of designing the structure of thin-walled disc-shaped parts, but also increases the difficulty of processing, and at the same time increases the processing surplus material, the material utilization rate is low, and the corresponding processing difficulty increases
[0004] For this kind of product of different sizes and specifications produced in large quantities, the above processing method is obviously not suitable

Method used

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  • Clamp and method for turning thin-wall dish-shaped part on lathe
  • Clamp and method for turning thin-wall dish-shaped part on lathe
  • Clamp and method for turning thin-wall dish-shaped part on lathe

Examples

Experimental program
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Effect test

Embodiment 1

[0069] This embodiment is a fixture for turning thin-walled disc-shaped parts on a lathe. The present invention includes a punch 1, a supporting bolt 2, a first pressing plate 3, a first pressing bolt 4, a gasket 5, a pressing ring 6, a second pressing plate 8, a second pressing bolt 9, and a third pressing plate 10.

[0070] The fixed body is a welded structure, which is assembled and welded by a splint, a circular body, a positioning ring, a bottom plate, and a rib plate. refer to image 3 , 4 , Shown in 5, punch 1 is a ball crown part with a bottom of 45# steel, and the big end of the ball crown has a chassis. The radius SR of the outer contour of the spherical crown is the same as the radius of the inner arc surface of the workpiece, and the wall thickness of the inner contour and the outer contour is 25mm. There are upper and lower ring grooves on the outer contour surface of the spherical crown, the distances from the end face of the chassis are 97mm and 57mm respecti...

Embodiment 2

[0080] Taking the processing material 30CrMnSiA, the radius of the inner arc of the thin-walled butterfly workpiece is SR246mm, the wall thickness is 2mm, and the height is 42.86mm, and the upper and lower end surfaces of the workpiece require processing of 38 ° conical surface as an example to illustrate how to process and use the present invention. Special processing device.

[0081] Specific operation method during use: Use the general clamping method to clamp the chassis of the punch on the lathe, and use the dial indicator to align the runout of the outer arc surface of the punch and the top surface of the spherical crown within 0.03 mm. First screw the support bolts into the threaded holes of the pressure plate 1, insert the compression bolts 1 into the through holes of the flat gasket and the oblong holes of the pressure plate 1, and then screw them into the evenly distributed threaded holes of the punch chassis. Then insert the workpiece into the outer surface of the p...

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Abstract

The invention discloses a clamp and method for turning a thin-wall dish-shaped part on a lathe, and belongs to the field of machining. The clamp comprises a male die, a support bolt, a first pressing plate, a first pressing bolt, a pressing ring, a second pressing plate, a second pressing bolt and a third pressing plate. The male die is of a spherical crown structure with a bottom, the outline of the spherical crown structure is the same as that of the inner arc face of the thin-wall butterfly-shaped piece, and the thin-wall butterfly-shaped piece is coaxially placed on the male die. When the upper end of the thin-wall butterfly-shaped piece is turned, the workpiece is pressed and fixed through the support bolt, the first pressing plate, the first pressing bolt, the pressing ring, the second pressing plate and the second pressing bolt; when the lower end of the thin-wall butterfly-shaped piece is turned, the workpiece is pressed and fixed through the pressing ring, the second pressing bolt and the third pressing plate; according to the clamp, the thin-wall butterfly-shaped part is clamped on a lathe, the whole workpiece does not deform, meanwhile, the whole workpiece is pressed by the pressing ring during turning, and the workpiece does not vibrate to affect the machining precision. The machining quality of products is guaranteed, and efficient turning of the products is achieved.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to a fixture and a method for turning a thin-walled disc-shaped piece on a lathe. Background technique [0002] Thin-walled disc is a curved thin-walled product, which can be formed by machining, stamping, spinning, etc. For products with strict size requirements, lathe cutting is generally used to remove excess material at both ends after forming. Due to the structural characteristics of thin-walled butterfly parts and the weight of the product, there are always problems in lathe turning: ①difficulty in clamping and aligning; ②generally using vertical lathes has large limitations; ③the workpiece is difficult to manufacture and the cost is high . [0003] In order to solve the above problems, in the existing processing technology, process steps or auxiliary structures are generally added to the butterfly parts, and special tooling and fixtures are designed in conjun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/06B23B1/00
CPCB23Q3/062B23Q3/065B23B1/00
Inventor 李艳辉曹学文李保玉李斌赵琳瑜张晨雁张剑兵孙于晴刘波李军红张传坤
Owner XIAN AEROSPACEMOTOR MACHINE FACTORY
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