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A wrap-around stamping die and a method for processing workpieces thereof

A stamping die and wrapping technology, which is applied in the field of wrapping stamping dies and their processed workpieces, can solve the problems of long dies, easy deformation of dies, uneven distribution of punching force, etc., and achieve the effect of small size and smooth fit

Active Publication Date: 2018-05-15
WENZHOU LIBO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the problem is that the mold is long and easily deformed, which affects the accuracy of the entire mold, and the stamping force is unevenly distributed, which affects the forming accuracy of the product.

Method used

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  • A wrap-around stamping die and a method for processing workpieces thereof
  • A wrap-around stamping die and a method for processing workpieces thereof
  • A wrap-around stamping die and a method for processing workpieces thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment one: if figure 1 , figure 2 and Figure 5 , a wrap-around stamping die, comprising an upper die 1 and a lower die 2 cooperating with each other. Wherein, the lower part of the upper die 1 is provided with several punches, and the top of the lower die 2 is provided with some dies, and each pair of punches and dies form a process. The bottom of upper mold 1 is provided with positioning pin 8, and lower mold 2 is provided with positioning block 9, and positioning block 9 is L-shaped structure, keeps a certain distance between positioning block 9 and lower mold 2 and places feeding belt 6. When the material strip 6 was placed on the lower mold 2, the two sides of the material strip 6 were below the positioning block 9. When the mold was closed, the positioning pin 8 passed through the positioning block 9 and punched holes on the both sides of the material strip 6, and the material strip 6 The belt 6 is formed with a row of positioning holes 10 on both sides t...

Embodiment 2

[0049] Embodiment 2: A method for processing a workpiece with a winding stamping die, comprising the following steps:

[0050] Step 1: Place the strip 6 on the first processing channel 3, start the punching machine to process the strip 6, the strip 6 is progressively processed on the first processing channel 3 and extends out of the corresponding transfer table 11;

[0051] Step 2: The punching machine suspends the processing, and gradually bends the end of the extension part of the material strip 6 in step 1 toward the second processing material channel 4 and puts it into the second processing material channel 4, and the material belt 6 is along the second processing material channel 4 Move out the corresponding transfer table 11. At this time, the material strip 6 covers the entire process set, and the punch press is restarted for processing.

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Abstract

The invention discloses a loopback stamping die and a workpiece machining method thereof. According to the technical scheme, the loopback stamping die is characterized in that the stamping die comprises an upper die body and a lower die body which are matched with each other; a plurality of male dies are arranged below the upper die body, and female dies matched with the male dies are arranged above the lower die body; each pair of male die and female die form a working procedure; a first machining material channel, a second machining material channel...and an Nth machining material channel allowing material straps to be placed are arranged on the lower die body, and N is larger than or equal to 2; the first machining material channel, the second machining material channel...and the Nth machining material channel are provided with working procedure sets used for machining the material straps, and the working procedure set on the Nth machining material channel is connected with the working procedure set on the (N-1)th machining material channel; and the material straps are sent out of the (N-1)th machining material channel and then are bent to enter the Nth machining material channel. Compared with an existing single-machining material channel die, the length is greatly decreased, machining cost is reduced, the whole die structure is more centralized, pressure distribution to the die by a punch press is more uniform and thus the die precision is improved.

Description

technical field [0001] The invention relates to the technical field of die processing, in particular to a wrap-around stamping die and a method for processing workpieces thereof. Background technique [0002] Stamping die is a special process equipment for processing materials (metal or non-metal) into parts (or semi-finished products) in cold stamping processing, called cold stamping die (commonly known as cold stamping die). Stamping is a pressure processing method that uses a mold installed on a press to apply pressure to the material at room temperature to cause separation or plastic deformation to obtain the required parts. [0003] Existing molds process large parts with a step distance of 38 mm and 20 stations, effective station length = step distance * station, material thickness of 0.3 mm, material width of 34.5 mm, and material made of stainless steel. [0004] It can be obtained that the formwork required for the production of the large card is about 1.2m long an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D28/14B21D28/02
CPCB21D28/02B21D28/14
Inventor 林松玲吴天旺尚亨建张辉林阿龙陈福生
Owner WENZHOU LIBO ELECTRONICS