Method for automatically detecting air valve friction welding yield strength

An automatic detection and yield strength technology, which is applied in the direction of applying stable tension/pressure to test the strength of materials, conveyor objects, transportation and packaging, etc., can solve the problems of high labor costs, chaotic management, operational errors, etc., and achieve work efficiency The effect of high height, large clamping range and simplified test device

Inactive Publication Date: 2017-05-31
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

[0003] There are problems such as high labor costs, low efficiency, operational errors, potential safety hazards, and chaotic management in the valve friction welding yield strength detection process of manual loading and unloading

Method used

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  • Method for automatically detecting air valve friction welding yield strength
  • Method for automatically detecting air valve friction welding yield strength
  • Method for automatically detecting air valve friction welding yield strength

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Embodiment Construction

[0036] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0037] see Figure 1 to Figure 7 , this embodiment discloses a method for automatic detection of the friction welding yield strength of a valve. The valve is welded by a head and a rod. The method is based on a detection device. There are automatic loading and unloading conveying mechanism 2, loading and unloading manipulator module 3, electric cylinder loading module 4, hydraulic chuck clamping mechanism 5,

[0038] The automatic loading and unloading conveying mechanism 2 includes a support 21, a conveying chain plate 22 arranged on the support 21, a plurality of support block groups, two photoelectric switches, a...

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Abstract

The present invention discloses a method for automatically detecting the air valve friction welding yield strength. The method comprises following steps: 1, tightly clamping the rod part of an air valve to be detected by a clamping finger at the front end of a hydraulic clamping plate, wherein the head of the air valve froms a cantilever beam structure at the outside; 2, driving the hydraulic clamping plate to rotate by a fourth driving mechanism, and driving a pressing plate to move to a position right above the head of the air valve by a third driving mechanism; 3, driving the pressing plate to move downwards by a servo electric cylinder, applying a down-pressing load onto the head of the air valve, detecting the down-pressing displacement of the servo electric cylinder by a grating ruler in real time, detecting output pressure of the servo electric cylinder by a pressure sensor, after the air valve deforms to a pre-set deformation amount under the down-pressing load, stopping the action of the servo electric cylinder, keeping the pressure for a time period t, and then unloading; and 4, detecting whether the air valve is yielded to be ruptured by an optoelectronic switch for material interrupting detection. The method has the advantages of high detection precision, high universality and high degree of automation.

Description

technical field [0001] The invention relates to the field of valve friction welding yield strength detection, in particular to a method for automatic detection of valve friction welding yield strength. Background technique [0002] The valve is mainly used to input air into the engine and remove the combustion exhaust gas to realize the ventilation when the engine is working. The valve head and the rod are connected by friction welding. The friction welding yield strength directly affects the reliability of the valve operation and the safety of the engine. The friction welding yield strength detection is an indispensable process in the valve manufacturing process. [0003] The valve friction welding yield strength detection process of manual loading and unloading has problems such as high labor cost, low efficiency, operational errors, potential safety hazards, and chaotic management. With the development of modern manufacturing technology, the detection of valve friction w...

Claims

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Application Information

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IPC IPC(8): G01N3/08B65G47/90
Inventor 毕世书黄大伟李露孔令成
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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