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Ultrasonic-assisted punching process

An ultrasonic and stamping tool technology, applied in the field of ultrasonic-assisted stamping process, can solve the problems of increased energy consumption, reduced service life of stamping dies, low forming accuracy, etc., and achieves the effects of small stamping load, improved accuracy and low energy consumption

Inactive Publication Date: 2015-06-17
DONGGUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of using the existing stamping machine tool to complete the stamping forming process, the following defects generally exist, specifically: 1. The existing stamping machine tool can hardly avoid the forming effect error caused by the rebound force produced by the metal material, and the forming accuracy Not high; 2. In order to ensure the forming accuracy, generally it can only be achieved by increasing the stamping load. Once the stamping load becomes larger, the impact force that the stamping die must bear becomes larger, and the service life of the stamping die is greatly reduced. and energy consumption can increase

Method used

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  • Ultrasonic-assisted punching process

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Experimental program
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Effect test

Embodiment 1

[0026] Embodiment 1, an ultrasonic-assisted stamping process, including the following process steps, specifically:

[0027] a. Place the stainless steel sheet to be stamped and bent on the upper surface of the stamping lower die 12 of the stamping machine tool 1. The length, width and height of the stainless steel sheet to be stamped and bent are 250 mm, 35 mm, and 1 mm respectively; wherein, the stamping machine tool 1 It includes a frame 11, the upper end of the frame 11 is provided with a fixed support plate 111 arranged horizontally and horizontally, the upper end side of the fixed support plate 111 is equipped with a fixed support frame 112, and the stamping lower die 12 is screw mounted on the fixed support plate 111 On the upper surface of the upper surface of the stamping die 12, the fixed support frame 112 can be equipped with a movable mounting frame 13 relatively up and down, and the movable mounting frame 13 is equipped with a vertically arranged ultrasonic horn 14....

Embodiment 2

[0035] Embodiment 2, an ultrasonic-assisted stamping process, including the following process steps, specifically:

[0036] a. Place the stainless steel sheet to be stamped and bent on the upper surface of the stamping lower die 12 of the stamping machine tool 1. The length, width and height of the stainless steel sheet to be stamped and bent are 250 mm, 35 mm, and 1 mm respectively; wherein, the stamping machine tool 1 It includes a frame 11, the upper end of the frame 11 is provided with a fixed support plate 111 arranged horizontally and horizontally, the upper end side of the fixed support plate 111 is equipped with a fixed support frame 112, and the stamping lower die 12 is screw mounted on the fixed support plate 111 On the upper surface of the upper surface of the stamping die 12, the fixed support frame 112 can be equipped with a movable mounting frame 13 relatively up and down, and the movable mounting frame 13 is equipped with a vertically arranged ultrasonic horn 14....

Embodiment 3

[0044] Embodiment 3, an ultrasonic-assisted punching process, including the following process steps, specifically:

[0045] a. Place the stainless steel sheet to be stamped and bent on the upper surface of the stamping lower die 12 of the stamping machine tool 1. The length, width and height of the stainless steel sheet to be stamped and bent are 250 mm, 35 mm, and 1 mm respectively; wherein, the stamping machine tool 1 It includes a frame 11, the upper end of the frame 11 is provided with a fixed support plate 111 arranged horizontally and horizontally, the upper end side of the fixed support plate 111 is equipped with a fixed support frame 112, and the stamping lower die 12 is screw mounted on the fixed support plate 111 On the upper surface of the upper surface of the stamping die 12, the fixed support frame 112 can be equipped with a movable mounting frame 13 relatively up and down, and the movable mounting frame 13 is equipped with a vertically arranged ultrasonic horn 14....

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Abstract

The invention discloses an ultrasonic-assisted punching process. The ultrasonic-assisted punching process comprises the following steps that a, a stainless steel sheet is placed on the upper surface of a lower punching die of a punching machine; b, a driving air cylinder is started, a piston rod of the driving air cylinder drives an ultrasonic amplitude transformer, an ultrasonic transducer and a punching tool head to move downwards through a movable mounting frame, and the punching tool head presses the stainless steel sheet tightly, wherein the pressure value of the driving air cylinder ranges from 0.13 MPa to 0.15 MPa; c, after the pressure of the driving air cylinder is maintained for 4.5-5.5 seconds, an ultrasonic generator is started, wherein the power value of the ultrasonic generator is 4200 W, and the vibration frequency of the ultrasonic amplitude transformer is 2000 Hz; d, after the ultrasonic generator is started continuously for 1.5 seconds and then is shut down, the driving air cylinder continues to maintain pressure; e, after pressure maintenance is completed, the driving air cylinder is reset; f, the stainless steel sheet is taken down from the lower punching die. Through the design of the process steps, the ultrasonic-assisted punching process can effectively improve the punching bent-forming accuracy, the punching load is small, and the energy consumption is low.

Description

technical field [0001] The invention relates to the technical field of punching and forming, in particular to an ultrasonic-assisted punching process. Background technique [0002] Stamping machine tools are key equipment for stamping and forming stamping materials through corresponding stamping dies. In the process of forming parts, compared with traditional mechanical cutting, the stamping forming process has the advantages of saving materials and energy, high work efficiency, and easy operation. The advantages of low technical requirements for personnel; With the above advantages, stamping and forming processing is widely used in the manufacturing industry. [0003] In the process of using the existing stamping machine tool to complete the stamping forming process, the following defects generally exist, specifically: 1. The existing stamping machine tool can hardly avoid the forming effect error caused by the rebound force produced by the metal material, and the forming a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/02B21D37/00B21D37/12
CPCB21D22/02B21D37/00B21D37/12
Inventor 孙振忠陈海彬郭建文杜耀涛卢泳平
Owner DONGGUAN UNIV OF TECH
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