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On-line measurement system for inner diameter of large thin-walled workpiece

A technology of large thin-walled parts and thin-walled parts, which is applied in the field of parts processing, can solve problems such as large errors, and achieve the effect of improving measurement accuracy and improving work efficiency

Active Publication Date: 2020-12-18
HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides an online measurement system for the inner diameter of large thin-walled parts, which solves the technical problem of large errors in the online measurement of the inner diameter of large thin-walled parts in the prior art, and realizes the measurement of the inner diameter of large thin-walled parts. During online measurement, it can quickly and accurately measure and calculate the inner diameter value of any axial position, which not only improves the measurement accuracy, but also improves the technical effect of working efficiency

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  • On-line measurement system for inner diameter of large thin-walled workpiece
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  • On-line measurement system for inner diameter of large thin-walled workpiece

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Embodiment 1

[0053] Such as figure 1 As shown, this embodiment provides an online measurement system 100 for the inner diameter of a large thin-walled part, including: a fixed support 1 , a laser displacement sensor 2 , a reference point 3 and a control module 4 .

[0054] further, such as Figure 2-4 As shown, the assembly method of the measurement system 100 is as follows:

[0055] The fixed support 1 is arranged on the boring bar shaft of the special boring machine, wherein the thin-walled part to be measured is placed on the special boring machine;

[0056] The laser displacement sensor 2, the rear end of the laser displacement sensor 2 is fixed on the fixed support 1, the front end of the laser displacement sensor 2 is provided with a sensor head, and the laser displacement sensor 2 is located in the thin-walled part;

[0057] The control module 4 is connected with the laser sensor 2, and the control module 4 is used to: control the laser displacement sensor 2 to measure the distanc...

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Abstract

The invention discloses an on-line measurement system for the inner diameter of a large thin-walled workpiece. The system comprises a fixed support which is disposed on a boring cutter rod shaft of aboring special machine, wherein the boring special machine is provided with a to-be-measured thin-walled workpiece; a laser displacement sensor, wherein the rear end of the laser displacement sensor is fixed to the fixed support, a sensing head is arranged at the front end of the laser displacement sensor, and the laser displacement sensor is located in the thin-walled workpiece; and a control module which is connected with the laser positioning sensor and is used for controlling the laser displacement sensor to measure the distance of a measuring point on the inner wall of the thin-walled workpiece to obtain a first distance from the sensing head to the measuring point, and based on the first distance, the second distance and the preset included angle, obtaining the inner diameter of thethin-walled workpiece. According to the invention, when the inner diameter of the large thin-walled workpiece is measured on line, the inner diameter value of any axial position can be rapidly and accurately measured and calculated, the measurement precision is improved, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of part processing, in particular to an online measurement system for the inner diameter of a large thin-walled part. Background technique [0002] In actual production, there are many large parts, such as a large thin-walled part with a length of 3000mm and an outer diameter of φ1300mm. The straightness of the inner hole is required to be 0.2 and the roundness to be 0.1. For such parts, the internal surface turning process can adopt CNC horizontal lathe and CNC vertical lathe. If a CNC vertical lathe is used, limited by the travel of the ram of the machine tool, for a cylinder with a length of more than 1500mm, a vertical lathe with a diameter of more than 5 meters is required. According to the external dimensions of the cylinder, the corresponding vertical lathe will be larger, and the cost will increase and the efficiency will increase. Low; if the CNC horizontal lathe is used, the strength of the cutter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/12
CPCG01B11/12
Inventor 徐丹刘新明王春艳杨波
Owner HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL
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