Process and device for cold extrusion forming of motor shell
A motor housing and cold extrusion technology, which is applied in the field of motor parts manufacturing, can solve the problems of high production cost, difficulty in ensuring the consistency of finished products, and difficulty in manufacturing shaped motor housings, so as to reduce production costs and reduce environmental pollution. , The effect of easy control of product quality
Inactive Publication Date: 2009-08-26
周蔚
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Problems solved by technology
[0002] At present, the motor casing is generally made of castings and machine tools. This not only complicates the process and consumes a lot of money, but also makes it difficult to guarantee the quality of the parts, especially the consistency of the finished product, and the production cost is also high.
In recent years, people are constantly exploring new technologies, such as the patented technology of "A Precision Forming Method for Thin-walled Cylindrical Parts", which discloses a method of using hot-rolled seamless steel pipes as blanks, through unique expansion and extrusion Composite molding technology to manufacture submersible motor casings has achieved good results with little or no cutting, but this patented technology is difficult to manufacture motor casings with complex shapes, so it is very necessary to develop new processes and devices to improve this type of electric motor The manufacturing method of the machine shell achieves the purpose of saving energy and reducing consumption
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Embodiment 1
[0020] Embodiment 1: The punch 7 is fixed in the upper die frame 6 through the punch fixing ring 5, the die assembly 8 is fixed in the lower die frame 10 through the die fixing ring assembly 9, and the ejector pin 11 is set at the bottom of the die , the ejector 12 is connected to the rear of the ejector rod; at the same time, the head of the punch 7 and the bottom of the die assembly 8 are arc-shaped. The press 4 used in this embodiment is a hydraulic press, the material is 20CRMO alloy steel, and the mold structure is as follows figure 2 As shown, the specific steps are: ① put the material into sections; ② normalize and soften the material; ③ put the processed blank into the lower die cavity of the cold extrusion molding die; ④ start the press 4 to make the cold The upper mold of the extrusion molding die is lowered, and the extrusion blank makes it generate plastic flow into the cavity of the convex and concave molds to be formed; The ejector rod 11 pushes out the semi-fi...
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The invention discloses a process and a device for the cold extrusion forming of a motor shell. The manufacturing technique of a motor shell with a complex shape is innovated so that the production becomes simple and convenient, the precision and the quality of products are improved, the environmental pollution is reduced, and the cost is reduced. The process for the cold extrusion forming of the motor shell comprise the following steps: firstly, performing a blanking process step, and performing normalizing softening treatment on a blank; secondly, putting the blank after the treatment into a cold extrusion forming die, and extruding the blank by a pressure machine so that the blank generates plastic flow and enters an convex die and a concave die cavity to make a semi-finished product of the motor shell; thirdly, propping out the semi-finished product of the motor shell; and finally, performing fine finishing on the motor shell so that the motor shell reaches a design specification.
Description
technical field [0001] The invention belongs to the technical field of motor parts manufacturing, and mainly relates to a manufacturing process and device of a motor housing. Background technique [0002] At present, the motor casing is generally made of castings and machine tools. This not only complicates the process and consumes a lot of money, but also makes it difficult to guarantee the quality of the parts, especially the consistency of the finished product, and the production cost is also high. In recent years, people are constantly exploring new technologies, such as the patented technology "A Precision Forming Method for Thin-walled Cylindrical Parts", which discloses a method of using hot-rolled seamless steel pipes as blanks, through unique expansion and extrusion Composite molding technology to manufacture submersible motor shells has achieved good results with little or no cutting. However, this patented technology is difficult to manufacture motor shells with c...
Claims
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IPC IPC(8): B21C23/02B21C23/01B21C25/02
Inventor 周蔚
Owner 周蔚