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[CN 201710416149.1] Electric upsetting machine provided with pressure sensor and method for machining valve thereof
[CN 201710416149.1] An Electric Upsetting Machine with Pressure Sensor and Its Method for Machining Valves Title: An Electric Upsetting Machine with Pressure Sensor and Its Method for Machining Valves Application Number: CN 201710416149.1 Applicant: Macheng Zhongda Precision Machinery Co., Ltd. Application Date: 2017-6-6 Patent Type: Invention Application The present invention discloses an electric upsetting machine with pressure sensor, which is used to process bar stock into engine valve blank, the electric upsetting machine comprises: an electric upsetting module, a thimble module, a clamping module, a current heating module and a control module, wherein when the electric upsetting is performed on the valve rod material, the initial current is small and no arc effect is generated, and then the acting force of the current and the thimble instantly increases to a certain value and keeps constant to process the garlic head of the valve. The garlic head is formed smoothly and smoothly and without cracks on the surface, and the processing conditions can be controlled according to the different stages of garlic formation. In addition, the present invention also provides a method for machining a valve using the electric heading, which mainly needs to adjust the operating speed and jacking force of the thimble in the control system according to the bar length information obtained by the position sensor to adjust the current accordingly. change.
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