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Steam turbine blade positioning detection clamp and clamping method

A steam turbine blade and positioning detection technology, which is applied in the direction of workpiece clamping devices, manufacturing tools, etc., can solve the problems of leaving traces, affecting the detection results of blades, and the fixture cannot achieve more accurate control, so as to increase friction and prevent accidents Effects of falling and improving accuracy

Pending Publication Date: 2021-12-03
宿迁市航中智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The blades of the steam turbine need to be inspected for cracks during production and processing. The operations of the fixtures used in the inspection are mostly done manually. Since the blades are fixed by clamping, the fixtures cannot achieve more precise control during the manual operation. The surface of the blade leaves traces, which in turn affects the detection results of the blade. At the same time, in order to improve the accuracy of the detection results of the blade, the blade needs to be detected in multiple directions. Due to the error caused by manual operation, the number of parts of the blade that are repeatedly detected increases. , will affect the efficiency of blade detection. Therefore, a method is proposed that can make blade fixing more convenient and accurate without causing damage to the blade, and can accurately change the detection position of the blade. While improving the accuracy of blade detection results, A steam turbine blade positioning detection fixture that improves blade detection efficiency to solve the above problems

Method used

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  • Steam turbine blade positioning detection clamp and clamping method
  • Steam turbine blade positioning detection clamp and clamping method
  • Steam turbine blade positioning detection clamp and clamping method

Examples

Experimental program
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Effect test

Embodiment 1

[0027] see Figure 1-4 , this embodiment provides a steam turbine blade positioning detection fixture, including a clamping platform 1, the clamping platform 1 is a plane, which is convenient for fixing the detection device, and can also provide a more conventional blade clamping and detection datum point.

[0028] Among them, the top surface of the clamping platform 1 is provided with two splints 2, and the two splints 2 are in the same plane as the clamping platform 1, so that the pressure direction applied by the two splints 2 to the blades is in the same plane, so as to avoid unbalanced force on the blades , bent or broken.

[0029] In order to enable the two clamping plates 2 to clamp the blade, the top surface of the clamping platform 1 is slidably connected to one of the clamping plates 2 through the connecting rod 3, and the other clamping plate 2 is connected to the top surface of the clamping platform 1 through the telescopic rod 4, The two splints 2 are facing eac...

Embodiment 2

[0043] see Figure 5-6 , on the basis of Embodiment 1, a further improvement is made: when the blade is detected, when the detection position is adjusted, it may be necessary for the blade to rotate at a certain angle, thereby making the detection result of the blade more accurate.

[0044] The input ends of the motor that provides power for the gears and the servo motor that provides power for the worm gear are connected to the output end of the logic controller through wires. The logic controller can prevent the blade from being subjected to a large clamping force and prevent the blade from being damaged. The clamping detection process of the blade can be automated, the labor input can be reduced, and the work efficiency can be improved.

[0045] In order to realize the rotation of the blade, the side of the slide block 45 is rotationally connected with the end of the movable rod 42, and the inside of the movable rod 42 is provided with a motor that provides power for the sl...

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Abstract

The invention discloses a steam turbine blade positioning detection clamp and a clamping method, and relates to the related technical field of blade clamps. The steam turbine blade positioning detection clamp comprises a clamping platform, two clamping plates are arranged on the top surface of the clamping platform, the two clamping plates and the clamping platform are located on the same plane, and the top surface of the clamping platform is slidably connected with one clamping plate through a connecting rod; and the other clamping plate is connected with the top surface of the clamping platform through a telescopic rod, the two clamping plates directly face at the top surface of the clamping platform, air cavities are formed in the two clamping plates, air bags are arranged in the air cavities, leakage holes communicated with the air cavities are formed in the opposite side surfaces of the two clamping plates, and the outer walls of the air bags extend to the outer sides of the clamping plates through the leakage holes. Pressure sensors are arranged in the air cavities, and the output ends of the pressure sensors are connected with a logic controller. Through cooperative use of all the devices, clamping detection of a blade can be more convenient, meanwhile, the angle and direction of the blade can be accurately adjusted and controlled, the sample capacity of a detection result is increased, and the detection accuracy is improved.

Description

technical field [0001] The invention relates to the related technical field of blade fixtures, in particular to a steam turbine blade positioning detection fixture and a clamping method. Background technique [0002] The blades of the steam turbine need to be inspected for cracks during production and processing. The operations of the fixtures used in the inspection are mostly done manually. Since the blades are fixed by clamping, the fixtures cannot achieve more precise control during the manual operation. The surface of the blade leaves traces, which in turn affects the detection results of the blade. At the same time, in order to improve the accuracy of the detection results of the blade, the blade needs to be detected in multiple directions. Due to the error caused by manual operation, the number of parts of the blade that are repeatedly detected increases. , will affect the efficiency of blade detection. Therefore, a method is proposed that can make blade fixing more co...

Claims

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Application Information

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IPC IPC(8): B25B11/00
CPCB25B11/00
Inventor 王传昌
Owner 宿迁市航中智能科技有限公司