Tooling through hole detection method

A technology for tooling and workpieces, which is applied in the field of measuring round holes and evaluating using laser trackers, and can solve the problems of not being able to reflect the use status, error amplification, etc.

Inactive Publication Date: 2018-08-31
HARBIN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When there is a gap between the round hole and the product, there is an error amplification phenomeno

Method used

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  • Tooling through hole detection method
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  • Tooling through hole detection method

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Embodiment Construction

[0021] The laser tracker detection needs to use the target ball 4, the first target ball seat 2 and the second target ball seat 3, and the diameters of the first target ball seat 2 and the second target ball seat 3 should be consistent with the diameter of the circular hole. Regarding the target ball seat, the second target ball seat 3 is longer than the first target ball seat 2 If only one kind of target ball seat can be used for the measurement space

[0022] Two-point method for measuring circular holes:

[0023] Step 1 Place the first target ball seat 2 on the left surface of the circular hole of the workpiece 1, then place the target ball 4 on the first target ball seat 2, and measure point A with a laser tracker.

[0024] Step 2 Place the second target ball seat 3 together with the target ball 4 on the left surface of the round hole of the workpiece 1, and measure point B with a laser tracker. Or, the first target ball seat 2 and the target ball 4 are placed on the righ...

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Abstract

The invention relates to a tooling through hole detection method. The method uses simple, fast and accurate two-point measurement to obtain the position and axial direction of a circular hole, and performs judging by simulating an actual measured value and calculating the distances between dots and lines. The technical problems in prior art that a hole center on a single side is measured, the central point of the hole is used to evaluate the position of the hole, and evaluation cannot be done on the axial direction of the hole can be solved; and the technical problems in prior art that error amplification phenomenon exists when a gap exists between the circular hole and a product and the evaluation of the hole according to a prior method cannot reflect an actual use state can also be solved.

Description

technical field [0001] The invention belongs to digital measurement technology, and relates to a method for measuring a round hole by using a laser tracker and an evaluation method. Background technique [0002] The existing technology only measures the center of the hole on one side, uses the center point of the hole to evaluate the position of the hole, and does not evaluate the axial direction of the hole. When there is a gap between the round hole and the product, there is an error amplification phenomenon, and the evaluation of the hole according to the existing method cannot reflect the actual use state. content of the invention [0003] purpose of the invention [0004] Realization measurements should be accurate and reflect the state of use of the hole. The invention mainly measures and judges the precision of the through hole of the tooling through the two-point method. [0005] Technical solutions [0006] A method for detecting a through hole of a tooling, w...

Claims

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Application Information

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IPC IPC(8): G01B11/00
CPCG01B11/002
Inventor 王成龙张雪冬
Owner HARBIN
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