A method and device for automatic positioning and pointing of a concrete rebound tester

An automatic positioning and rebound hammer technology, applied in the field of measurement, can solve the problems of time-consuming, labor-intensive efficiency, low efficiency, and difficulty in ensuring the standardization of the measurement process, and achieve the effects of high measurement efficiency, improved accuracy, and standardized measurement process

Active Publication Date: 2018-06-05
LUOYANG GOLDEN KAM ENG QUALITY TESTING CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the rebound method measurement is manually operated by the operator, which is not only time-consuming and labor-intensive, but also inefficient, and it is difficult to ensure the standardization of the measurement process.

Method used

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  • A method and device for automatic positioning and pointing of a concrete rebound tester
  • A method and device for automatic positioning and pointing of a concrete rebound tester
  • A method and device for automatic positioning and pointing of a concrete rebound tester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for automatic positioning and dotting of a concrete rebound hammer, which is to first set a movement trajectory to connect 16 measuring points in a measurement area in series, and then control the rebound hammer to move along the set movement trajectory, so that the rebound hammer moves To a measuring point is to realize the positioning of the measuring point. After positioning the measuring point, the rebound value of the positioned measuring point is measured by controlling the rebound hammer. After the measurement of the measuring point is completed, the rebound hammer Continue to move to the next measuring point for measurement until the measurement of all 16 measuring points in the survey area is completed.

[0029] Usually, 16 survey points in each survey area are distributed on three concentric circles (as shown in the attached Figure 9 shown), in order to facilitate the realization of control, it is preferable that the motion track is similar to a plan...

Embodiment 2

[0031] As shown in the accompanying drawings, an automatic positioning and dotting device for a concrete rebound hammer includes a frame 2, a rebound hammer 10, an automatic positioning mechanism, a dotting mechanism, and a control box 3. Wherein, the front end of the frame 2 is fixed with a vertical plate I7, the rear end of the frame 2 is fixed with a vertical plate II5, and the front end of the vertical plate I7 ​​is equipped with four suction cups 8 . The automatic positioning mechanism includes a stepping motor 1, an outer cylinder 6, and an inner cylinder 9. The outer cylinder 6 is rotatably installed between the vertical plate I7 ​​and the vertical plate II5. The outer cylinder 6 has a ring gear 11, The stepper motor 1 is installed on the frame 2, and the stepper motor 1 is engaged with the ring gear 11 outside the outer cylinder 6 through the gear 12 connected to its output end, and the outer cylinder 6 can be driven to rotate by the stepper motor 1 . The inner cylinde...

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Abstract

The invention discloses a method and device for performing automatic positioning and dotting through a concrete rebound apparatus. The method includes the steps that a movement locus is set to connect 16 measuring points in a measuring zone in series, then the rebound apparatus is controlled to move along the set movement locus to position each measuring point, and after the measuring points are positioned, the rebound apparatus is controlled to perform dotting on the positioned measuring points to measure the rebound value. According to the technical scheme, the device comprises a rack, the resound apparatus, an automatic positioning mechanism, a dotting mechanism and a control box; suction cups are arranged on the rack; the automatic positioning mechanism comprises a stepping motor, an outer cylinder and an inner cylinder, the outer cylinder is rotationally installed on the rack and driven by the stepping motor to rotate, and the inner cylinder is coaxially arranged in the outer cylinder and connected with the outer cylinder in an axially sliding mode; the resound apparatus is arranged on the inner cylinder and can slide in the radial direction of the inner cylinder through sliding rails, a positioning disc with a locus guide groove is arranged on the rear portion of the resound apparatus, and the positioning disc is connected with a linear actuator arranged on the rear portion of the positioning disc.

Description

technical field [0001] The invention relates to an automatic positioning and dotting method for a concrete rebound tester, which belongs to the technical field of measurement. The invention also relates to an automatic positioning and dotting device for a concrete rebound tester using the method. Background technique [0002] The rebound method is used to test the compressive strength of concrete, the equipment is simple, the operation is convenient, the test is fast, and the test cost is low, and the normal use of the concrete is not damaged, so it is often used in the direct measurement on the spot. According to the provisions of JGJ / T23-2011 "Technical Regulations for Testing the Compressive Strength of Concrete by Rebound Method": When testing in batches, components should be randomly selected, and the number of sampling inspections should not be less than 30% of the total number of components in the same batch and should not be less than 10 pieces ; For general compone...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/52G01N3/06
CPCG01N3/06G01N3/52
Inventor 焦永建郭晓军冀鹏方徐宁何军伟马涛郭景利周彦芳叶小恒
Owner LUOYANG GOLDEN KAM ENG QUALITY TESTING CENT CO LTD
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