A surface quality detection device for circumferential eddy current array steel balls
A surface quality and detection device technology, applied in the direction of measuring devices, material magnetic variables, instruments, etc., can solve the problems of insufficient expansion of the sphere, complex expansion mechanism, increased maintenance costs, etc., to avoid missed detection, improve detection accuracy, The effect of reducing the difficulty of maintenance
Active Publication Date: 2019-07-09
SHANDONG UNIV OF SCI & TECH
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Both methods require an unfolding mechanism to make the ball roll along a fixed curved path in two dimensions to fully unfold the spherical surface, which makes the unfolding mechanism more complicated and easy to wear in practical applications, and the unfolding device with a worn surface will lead to insufficient unfolding of the sphere. It is very easy to cause defects and missed inspections, so the deployment device must be replaced periodically, which greatly increases the maintenance cost
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[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the present invention is not limited to these embodiments.
[0031] Such as Figure 1 to Figure 6 As shown, a circumferential eddy current array steel ball surface quality detection device includes a frame 10, a steel ball 6 to be detected and a control system. The goal opening 2 where the steel ball 6 to be detected penetrates; the frame 10 is also provided with a steel ball surface quality detection mechanism and a steel ball driving mechanism, and the steel ball surface quality detection mechanism includes an eddy current array probe and a The detection cavity 15 of the ball 6, the detection cavity 15 is located at the bottom of the ball bin 1, the eddy current array probe is connected with the above-mentioned control system, the eddy current array probe includes a plurality of detection coils 13 evenly distributed on the periphe...
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The invention discloses a circumferential eddy current array steel ball surface quality detection device, which includes a frame, steel balls to be detected and a control system. A ball bin is arranged on the top of the frame, and a ball port is opened on the ball bin; The rack is also equipped with a steel ball surface quality detection mechanism and a steel ball driving mechanism. The steel ball surface quality detection mechanism includes an eddy current array probe and a detection chamber for holding the steel balls to be detected. The detection chamber is located at the bottom of the ball chamber. The eddy current array probe includes a plurality of detection coils evenly distributed on the outer circumference of the detection chamber; the steel ball driving mechanism includes a friction wheel, which is located under the detection chamber, and the outer circumference of the friction wheel is provided with a ring for supporting the steel to be detected. The groove of the ball, the rotation of the friction wheel drives the steel ball to be detected to roll. The invention adopts the steel ball surface unfolding method of the circumferential eddy current array, and the complete unfolding of the spherical surface can be realized through the one-dimensional rolling of the steel balls, which is simple and easy to implement.
Description
technical field [0001] The invention belongs to the technical field of object surface defect detection, in particular to a circumferential eddy current array steel ball surface quality detection device. Background technique [0002] Steel balls are the key basic components of bearings, and their surface quality directly affects the performance and life of bearings. For bearings used in precision machinery and instrumentation, the quality of the rolling element surface directly affects the accuracy, motion performance, vibration and noise of the instrument and equipment, and in severe cases will cause the operation of the machine instrument to fail. Therefore, the detection of steel ball surface defects is a key process in the steel ball and bearing manufacturing industry. The surface quality of steel balls needs to be tested one by one before leaving the factory. [0003] Restricted by detection cost factors, domestic steel ball manufacturers usually use the traditional ma...
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IPC IPC(8): G01N27/90
CPCG01N27/90G01N27/904
Inventor 张华宇钟明明曹茂永谢凤芹赵月刘文贝张伟鹏魏志恒
Owner SHANDONG UNIV OF SCI & TECH