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A kind of manufacturing method of non-indentation bending machine mold

A manufacturing method and technology of a bending machine, applied in the field of bending machines, can solve the problems of low processing precision, complex structure, difficult processing, etc., and achieve the effects of improving stability, avoiding scratches or strains, and having a simple structure.

Active Publication Date: 2016-08-17
马鞍山市国菱机械刃模有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the existing problems of scratches and indentations when ordinary V-shaped dies are used to process steel plates with high surface quality requirements, the improved V-shaped dies have the problems of low processing accuracy, complex structure, difficult processing, and poor stability during use. , the present invention provides a method for manufacturing a non-indentation bending machine mold, which can effectively avoid the problems of scratches and indentations when processing steel plates with high surface quality requirements, and has high processing accuracy, simple structure, easy processing and manufacturing, and stable good sex

Method used

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  • A kind of manufacturing method of non-indentation bending machine mold
  • A kind of manufacturing method of non-indentation bending machine mold
  • A kind of manufacturing method of non-indentation bending machine mold

Examples

Experimental program
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Effect test

Embodiment 1

[0068] Such as figure 1 , figure 2 and image 3 As shown, a non-indentation bending machine mold includes a mold base 2 and an arc buffer slider 1. The upper surface of the mold base 2 is provided with a V-shaped groove 3 and a semicircular groove 4; the V-shaped groove 3 and the semicircular groove The groove 4 is arranged on the upper surface of the mold holder 2 along the length direction of the mold holder 2; there are two semicircular grooves 4, which are symmetrically arranged on both sides of the V-shaped groove 3, and the surface roughness of the semicircular groove 4 is 0.2; V The groove 3 includes a V-shaped groove bottom 8, a V-shaped groove slope and a V-shaped groove top 7; the arc buffer slider 1 is strip-shaped, the cross section is semicircular, and its axis is the center line 6 of the arc buffer slider. The upper surface of the arc buffer slider 1 is flat, with a roughness Ra of 0.4, and the lower surface is arc-shaped, with a roughness Ra of 0.2. Edge 5; ...

Embodiment 2

[0108] It is the same as the embodiment 1, except that the radius of the arc buffer slider 1 is 200mm, and the distance between the centerlines 6 of the two arc buffer sliders is 440mm.

[0109] A method for manufacturing a mold for a non-indentation bending machine, the steps of which are:

[0110] 1. Preparation of mold base 2:

[0111] (1) Preparation of raw materials for the mold base 2 of the non-indentation bending machine mold:

[0112] The mold base 2 is made of a forged blank, and the components of the forged blank are calculated by weight percentage: C: 0.42%, Si: 0.15%, Mn: 3.30%, S: ≤0.035%, P: ≤0.035%, Cr: 1.70%, Cu: ≤0.050, the balance is Fe;

[0113] (2) Annealing treatment of forging blank:

[0114] Anneal the forged blank in step (1) through an annealing furnace to reduce hardness and improve cutting performance. Air cooling, so that the hardness of the forging blank is HB 220;

[0115] (3) Initial processing of forging blanks:

[0116] After the anneali...

Embodiment 3

[0147] It is the same as the embodiment 1, except that the radius of the arc buffer slider 1 is 200mm, and the distance between the centerlines 6 of the two arc buffer sliders is 440mm.

[0148] A method for manufacturing a mold for a non-indentation bending machine, the steps of which are:

[0149] 1. Preparation of mold base 2:

[0150] (1) Preparation of raw materials for the mold base 2 of the non-indentation bending machine mold:

[0151] The mold base 2 is made of a forged blank, and the components of the forged blank are calculated by weight percentage: C: 0.40%, Si: 0.25%, Mn: 2.50%, S: ≤0.035%, P: ≤0.035%, Cr: 2.20%, Cu: 0.040%, the balance is Fe;

[0152] (2) Annealing treatment of forging blank:

[0153] Anneal the forged blank in step (1) through an annealing furnace to reduce hardness and improve cutting performance. Air cooling, so that the hardness of the forged blank is HB 205;

[0154] (3) Initial processing of forging blanks:

[0155] After the annealin...

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Abstract

The invention discloses a method for manufacturing a mold of a non-indentation bending machine, which belongs to the field of bending machines. It solves the problems of scratches, low precision and poor stability when processing steel plates with high surface quality requirements. The present invention comprises a mold base and an arc buffer slider. The upper surface of the mold base is provided with a V-shaped groove and a semicircular groove; there are two semicircular grooves, which are symmetrically arranged on both sides of the V-shaped groove; the arc buffer slider is The upper surface is flat and the lower surface is arc-shaped; the upper surface of the biased edge is connected to the upper surface of the arc buffer slider to form the same plane; the number of arc buffer sliders is two, and they are respectively installed on two In the first semicircle groove, the lower surface of the arc buffer slider has the same shape as the semicircle groove, and the processing method of the present invention has good wear resistance and long service life between the arc buffer slider and the mold base. The invention can process high-quality steel plates without scratches and strains, and has the advantages of simple structure, easy manufacture, high processing precision and good stability.

Description

technical field [0001] The invention belongs to the field of bending machines, and in particular relates to a method for manufacturing a die of a bending machine without indentation. Background technique [0002] The bending machine is used to bend various metal sheets, and with molds of different structures and shapes, it can also press and fold the metal sheets into workpieces of various shapes. When ordinary V-shaped dies are used to bend steel plates (especially steel plates with a thickness below 2mm), the surface of the steel plate workpiece is often scratched or scratched due to contact and friction with the mold, which seriously affects the quality and appearance of the workpiece. And in the case of high appearance requirements, such as mirror stainless steel plates in the elevators of high-end hotels and office buildings, such defects must be avoided during processing. How to improve the structure of the mold so as to avoid scratches during the bending process of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D37/10B21D37/20C22C38/38
CPCC22C38/38B21D37/10B21D37/20B21D5/0263
Inventor 刘孝俊
Owner 马鞍山市国菱机械刃模有限公司