Forming tool with temperature measuring function for incremental forming

Abstract

The invention discloses a forming tool with a temperature measuring function for incremental forming. The forming tool comprises a forming tool handle, a forming tool head, an infrared thermocouple, a thermal insulation cover and a temperature controller; the forming tool handle and the forming tool head are both provided with inner holes; the inner holes of the forming tool handle and the forming tool head are communicated; the forming tool head uses a high-temperature resistant and wear resistant material; the forming tool handle uses a high-strength and high-rigidity material; the infrared thermocouple is mounted in the inner hole of the forming tool handle, and measures the temperature of plates through the inner holes of the forming tool handle and the forming tool head; the thermal insulation cover is mounted between the forming tool handle and the infrared thermocouple for protecting the infrared thermocouple from being damaged; and the temperature controller is connected with the infrared thermocouple through a lead, and acquires data, namely the temperature of the plates, of the infrared thermcouple; an adjusting quantity is obtained through comparing the acquired temperature with a set machining temperature, and is output to a heating device so as to realize the temperature closed-loop control. The forming tool is simple and reasonable in structure and low in cost.

Description

【Technical field】 [0001] The invention relates to a temperature measuring device applied to sheet metal progressive forming, which belongs to the technical field of sheet metal forming in the mechanical field. 【Background technique】 [0002] Incremental forming technology is based on the idea of ​​layered manufacturing, to two-dimensionalize three-dimensional parts, and use the forming tool head to extrude the required part shape layer by layer along the contour contour line, which has no mold (or uses a simple mold) and low cost Etc. For the processing of magnesium alloys, titanium alloys and other sheet materials that are difficult to form at room temperature, thermal progressive forming must be used. At present, most of the research on thermal progressive forming at home and abroad adopts the temperature open-loop control method, and the forming parameter of temperature cannot be precisely controlled. In order to realize the closed-loop control of temperature, a tempera...

AI Technical Summary

Problems solved by technology

At present, the research on thermal progressive forming at home and abroad mostly adopts the temperature open-loop control method, and the forming parameter of temperature cannot be precisely controlled.

In order to realize the closed-loop control of temperature, a temperature measurement device must be used. The existing temperature measurement methods have disadvantages such as high cost, complicated control, and time delay.

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