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Electric automobile starting-stopping device shell stamping die and technology

A technology for electric vehicles and stamping dies, which is applied in the field of stamping production of auto parts, can solve problems such as uneven thickness, prone to cracking, and difficult stretching, so as to achieve improved dimensional accuracy, high dimensional accuracy, and avoid pressure that is not easy to control Effect

Active Publication Date: 2019-04-26
SUZHOU PRO SUCCESS AUTOMOTIVE STAMPING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, many metal parts are processed by stamping, and it is difficult to stretch during the stamping process; especially if Figure 8 The shown electric vehicle start-stop device housing includes a housing 66, the housing 66 is cylindrical, one end of the housing 66 is fixed with a mounting lug 67, and the mounting lug 67 is provided with a mounting hole 37; because the

Method used

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  • Electric automobile starting-stopping device shell stamping die and technology
  • Electric automobile starting-stopping device shell stamping die and technology
  • Electric automobile starting-stopping device shell stamping die and technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] refer to figure 1 , a stamping mold for the start-stop device shell of an electric vehicle, comprising an upper mold base 59 and a lower mold base 60, the upper mold base 59 is fixedly connected with the punch part of the punching machine, and the lower mold base 60 is fixedly connected with the working platform of the punching machine; It also includes a preprocessing mold 1 for preprocessing the strip, a stretching mold 2 for stretching the gap between the process parts, a shrinking die 3 for shrinking and stamping the process parts, and a trimming process part transition The shaping mold 21 with a relatively circular arc, the rotary cutting mold 31 for rotary cutting the process parts, and the blanking mold 4 for final blanking. The preprocessing mold 1, stretching mold 2, necking mold 3, shaping mold 21, rotary cutting mold 31 and blanking mold 4 are arranged in sequence along the length direction of the strip.

[0049] refer to figure 1 and figure 2 , the pre...

Embodiment 2

[0058] refer to figure 1 , a shell stamping process for an electric vehicle start-stop device, comprising the following steps:

[0059] Before stamping, first install the material strip on the feeding turntable, the material strip is made of 1.6mm cold-rolled steel plate; the stamping machine is fixed with a liquid storage bottle for storing stamping oil, and the liquid storage bottle is provided with a drip tube, a drip tube Input the stamping oil to the material belt, so that the punching machine can better stamp the material belt;

[0060] Step 1, first feed the strip into the mold cavity; when stamping starts, the upper mold and the lower mold of the mold are separated, and the strip is inserted from the mold cavity formed between the upper mold and the lower mold;

[0061] refer to figure 2 , step 2, then punch out the positioning holes, and the positioning holes are equidistantly arranged along the length direction of the material strip; the punching punch 5 and the ...

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Abstract

The invention discloses an electric automobile starting-stopping device shell stamping die and technology, and belongs to the technical field of automobile part stamping production. The technical problems that a product obtained through a traditional stamping technology and die is prone to being stretched unevenly in thickness, and pull cracks, burrs and other situations are prone to occurring aresolved. According to the technical scheme, the electric automobile starting-stopping device shell stamping die comprises a premachining die, a stretching die, a necking die and a blanking die; the premachining die comprises punched hole punching pins, a punching concave die, premachining punching pins and a premachining concave die; the stretching die comprises stretching punching pins and a stretching concave die; the blanking die comprises a blanking punching pin and a blanking concave die. The electric automobile starting-stopping device shell stamping die has technical effects that a material belt is subjected to continuous machining through the premachining die, the stretching die, the necking die, a sizing die and the blanking die, the machining precision of a starting-stopping device shell is well ensured, thus, the thickness of a finished product is uniform, and pull cracks and burrs are avoided.

Description

technical field [0001] The invention relates to the technical field of stamping production of auto parts, in particular to a stamping die and a process for a shell of an electric vehicle start-stop device. Background technique [0002] At present, many metal parts are processed by stamping, and it is difficult to stretch during the stamping process; especially if Figure 8 The shown electric vehicle start-stop device housing includes a housing 66, the housing 66 is cylindrical, one end of the housing 66 is fixed with a mounting lug 67, and the mounting lug 67 is provided with a mounting hole 37; because the housing 66 It is a deep cylindrical shape, and the installation lugs 67 are arranged perpendicular to the axial direction of the housing 66, and the connection between the installation lugs 67 and the housing 66 is provided with a transition arc angle 39; the traditional stamping process and mold, production The products produced are prone to uneven thickness, cracking an...

Claims

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Application Information

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IPC IPC(8): B21D37/08B21D53/88
CPCB21D37/08B21D53/88
Inventor 雷鹏飞周斌吴伟民查代佐雷道进
Owner SUZHOU PRO SUCCESS AUTOMOTIVE STAMPING
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