Workpiece length measurement device

A technology for length measurement and workpiece, applied in the field of workpiece length measurement devices, can solve the problems of high cost, limited installation methods and conditions, and achieve the effects of low cost, easy popularization and use, and high measurement accuracy

Inactive Publication Date: 2014-07-09
UNIV OF JINAN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods are costly, and the installation methods and conditions are limited

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Embodiment Construction

[0014] In order to clearly illustrate the technical features of this solution, the present invention will be described in detail below through the specific implementation of the shot blasting machine production line to identify the size of the workpiece, combined with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniq...

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Abstract

A workpiece length measurement device comprises a left limit switch, a transmission mechanism, a sliding body, a photoelectric switch, a right limit switch, a stepper motor, a calibration scaleplate, an encoder, a controller and an industrial personal computer, wherein the transmission mechanism comprises a conveying belt and a transmission device. By shielding or reflecting light beams emitted by the photoelectric switch through a measured object, whether the object exists or not is detected; the length or the width of the measured object is detected through the photoelectric switch sliding along with the sliding body. The moving distance of the photoelectric switch can be conveniently acquired through the number of pulses of the encoder, and therefore the length of the measured object can be measured. In order to solve the problem that the length of the measured object is irrelevant to the photoelectric switch, the stepper motor and other parameters and make the measurement device be popularized and adapt to the measured object easily, real-time calibration is achieved by adding the calibration scaleplate, and the workpiece length measurement device can be accurately used permanently. The workpiece length measurement device not only is convenient to install and low in cost but also is high in measurement accuracy, stable and reliable in running, and convenient to popularize for use.

Description

technical field [0001] The invention belongs to the technical field of workpiece length detection, in particular to a workpiece length measuring device. Background technique [0002] With the development of science and technology, the detection accuracy of product length is getting higher and higher. It is necessary to detect and eliminate the length or width of the workpiece in the manufacturing process or adopt different production processes to improve the accuracy of product size. For high-precision object length detection, there are generally two methods used: [0003] One is to use high-precision measuring tools, such as vernier calipers, micrometers, etc., but generally they can only be used for manual operation, which is difficult to achieve in mass inspection. Moreover, for products to be tested of different sizes, multiple sets of measuring tools may be required, which is not flexible enough. This detection method is not only difficult to guarantee the measurement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/04
Inventor 刘鲁宁张瑞芳
Owner UNIV OF JINAN
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