A sheet metal automatic positioning and failure prediction device
A failure prediction and automatic positioning technology, which is applied in the field of stamping and forming, can solve problems such as time dislocation asymmetry, failure time is difficult to grasp, and crack failure is too large
Active Publication Date: 2017-02-22
江苏宝锐汽车部件有限公司
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Problems solved by technology
[0003] When testing the formability of materials, problems such as inaccurate sheet positioning, offset, and difficulty in grasping the failure time are usually encountered, resulting in serious time dislocation and asymmetry, and at the same time, phenomena such as excessive fracture failure or no failure have seriously affected the experiment. result
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[0016] Depend on Figure 1-Figure 4 It can be seen that the present invention provides a device for automatic positioning and failure prediction of sheet metal. This device mainly performs cupping experiments and cone cup experiments on circular sheet materials; Disc 2, connection fixing seat 3, blank holder connecting rod 4, blank holder ring 5, guide column 6, guide sleeve 7, upper mold fixed column 8, mold frame pillar 9, pillar fixed sleeve 10, upper mold frame 11, concave Die holder 12, punch 13, punch ejector rod 14, lower mold frame 15, die fixing ring 16, die 17, punch fixing ring 22; The fixing sleeve 10 is fixedly connected with the lower mold frame 15, and the die 17 is fixed under the die holder 12 through the die fixing ring 16 through bolts through threaded connection, and the die holder 12 is fixed on the upper die holder through the upper mold fixing column 8 Below 11, the blank 19 is placed on the blankholder 5, and the blankholder 5 is fixed on the upper sur...
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Abstract
The invention relates to an automatic sheet positioning and failure prediction device, and belongs to the technical field of stamping forming. The automatic sheet positioning and failure prediction device is mainly applied to the cup drawing test and conical cup test. A sheet is a circular sheet, the sheet is precisely positioned by virtue of signal transmitters on a concave die and a convex die and a signal receiver on a blank holder, the convex die force is detected in real time by virtue of a force sensor between the convex die and a convex die ejector rod, when the convex die force is suddenly attenuated to a preset value, the sheet is broken and in failure, a PLC transmits an instruction to enable the convex die to be stopped, and the test is completed. The automatic sheet positioning and failure prediction device can precisely position the sheet and can predict the failure time of the sheet in real time, so that the test precision is improved.
Description
technical field [0001] The patent of the invention relates to a device for automatic positioning and failure prediction of sheet metal. This device is mainly used for stamping forming and failure time prediction of cup and cone cup experiments, and then to test material properties, so it belongs to the field of stamping forming technology . Background technique [0002] Cupping test and cone cup test are effective methods to measure metal forming properties, and are widely used in sheet metal forming, mold design, aerospace, automobile transportation, electronic appliances, instrumentation appliances, medical equipment and other fields. Formability refers to the ability of the metal sheet to resist cracking during the stamping forming process, that is, the ability of the sheet to produce plastic deformation during the specified processing without failure; understand the formability of the metal sheet, and predict the wrinkling and cracking of the metal sheet during forming ...
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IPC IPC(8): G01N3/02G01N3/28B21D43/00
Inventor 陈炜曹志福汤鹏鹏蒋在敏陈泷李志朋
Owner 江苏宝锐汽车部件有限公司