CN108225197B

CN108225197B - Thickness measurement smelting tool

Info

Publication number: CN108225197B
Application number: CN201810055953.6A
Authority: CN
Inventors: 胡海林; 杨波
Original assignee: Dongguan Lingfeng Electronics Co ltd
Current assignee: Guangdong Lingfeng Intelligent Technology Co ltd
Priority date: 2018-01-20
Filing date: 2018-01-20
Publication date: 2020-08-25
Anticipated expiration: 2038-01-20
Also published as: CN108225197A

Abstract

The invention relates to the technical field of measurement tools, in particular to a thickness measurement tool, which comprises a main shell, wherein a rubbing plate is arranged in the middle of the surface of the main shell, floating pins are arranged on the periphery of the rubbing plate, fixing holes are formed in four corners of the surface of the main shell, an air pressure relief opening is formed in the right side of the main shell, a vacuum switch is arranged on the outer side of the air pressure relief opening, and the rubbing plate is communicated with the air pressure relief opening. The invention overcomes the influence of the surface roughness of the product on the measurement precision, the influence of the parallelism error of the carrier of the product on the measurement result and the influence of laser correlation on the productivity, and has high measurement precision.

Description

Thickness measurement smelting tool

Technical Field

The invention relates to the technical field of measurement smelting tools, in particular to a thickness measurement smelting tool.

Background

Thickness measurement is a modern common measurement technology, in the prior art, the thickness of a material is detected, two measurement points are formed by laser scanning and correlation of coaxial point laser or a triangular point laser matching line, the distance between the two points is calculated by software technology, and the thickness is calculated. However, the laser correlation scheme has the following defects:

1. laser correlation has large limitations. The triangulation point laser is interfered by a product structure, and when the optical reflection is influenced by the product characteristics, the sensor cannot receive the reflected light wave and cannot detect the measured surface.

2. Laser measurement has higher requirements on products, the existing laser spots on the market are smaller, and when the surface roughness of the products is higher, the laser has the pit falling phenomenon, so that the real size of the products cannot be embodied.

3. The laser measurement product thickness is influenced by the product and the tool parallelism, when the product and the tool parallelism have errors or the measured position is not perpendicular to the sensor, the actual measurement value is that the normal distance is not the perpendicular distance, and the actual measurement value is larger than the actual value of the product.

4. The measurement CT is long, the laser correlation must be line-scanned, and the too fast line-scanning speed will cause image distortion and affect the measurement precision.

Disclosure of Invention

In order to solve the problems, the invention provides a thickness measurement jig, which solves the problems that the surface roughness of a product affects the measurement precision, the parallelism error of a product carrier affects the measurement result, the laser correlation affects the productivity and the like, and improves the detection efficiency.

The utility model provides a thickness measurement smelting tool, includes the main casing body, be equipped with in the middle of the main casing body surface and rub the board, it is equipped with the floating round pin all around to rub the board, main casing body surface four corners drop is equipped with the fixed orifices, main casing body right side is equipped with air pressure release mouth, the air pressure release mouth outside is equipped with vacuum switch, rub the board with air pressure release mouth intercommunication.

Preferably, there is the rectangular channel main casing body long limit both sides, makes things convenient for the staff to hold and removes, and the rectangular channel is about main casing body axial symmetry, and is located between two air pressure release mouths.

Preferably, the two air pressure relief openings are located on the same side of the main shell and are axially symmetrical about the main shell, the two air pressure relief openings are controlled by the same pipeline and are externally connected with a vacuum pump, and the two pressure relief openings are simultaneously relieved during working.

Preferably, the fixing hole is a countersunk bolt hole.

Preferably, the floating pin extends from the interior of the main housing, and the floating pin moves linearly in a direction perpendicular to the surface of the main housing during measurement.

Preferably, the vacuum switch is of the twist-on type.

Preferably, the main housing is machined using a machining center.

The invention has the beneficial effects that: adopt line laser sensor cooperation tool to measure product thickness, compare with laser correlation technique, have following advantage:

1. the detection CT is better than the laser correlation technique for 7 seconds/pcs.

2. The repeatability is higher than that of the laser correlation technology.

3. The cost is lower than that of the laser correlation technology (saving one group of sensors).

4. The debugging process is simpler and more convenient than laser correlation.

5. The contact +3D laser measurement is less affected by optics and product structural features.

6. The contact type and laser measurement can feed back the assembled effect more truly.

Drawings

FIG. 1 is a schematic view of a thickness measurement tool according to the present invention.

In the figure: 1. a main housing; 2. rubbing the plate; 3. a floating pin; 4. a fixing hole; 5. an air relief vent; 6. and (4) a vacuum switch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, a thickness measurement smelting tool, including main casing body 1, be the rubbing board 2 in the middle of the main casing body surface, rubbing board 2 is round pin 3 that floats all around, four corners in main casing body 1 surface are fixed orifices 4, main casing body 1 right side is air pressure release mouth 5, the 5 outsides of air pressure release mouth are vacuum switch 6, rubbing board with air pressure release mouth intercommunication.

There is the rectangular channel main casing body long limit both sides, makes things convenient for the staff to take to hold the removal, and the rectangular channel is about main casing body axial symmetry, and lies in between two air pressure release mouths, air pressure release mouth has two, lies in main casing body with one side, about main casing body axial symmetry, and two air pressure release mouths are by same pipeline control, and the outer vacuum pump that links, two pressure release mouths of during operation release pressure simultaneously, the fixed orifices is the countersunk head bolt hole, the floating round pin stretches out from main casing body inside, and the floating round pin is linear motion along perpendicular main casing body surface direction during the measurement, vacuum switch is rotatory twisting type, the main casing body adopts machining center to process.

The specific embodiment is as follows: put the main casing body to the product that awaits measuring on, screw up vacuum switch 6, open the vacuum pump, the vacuum pump passes through air pressure release mouth 5 and takes out the air, 1 inside pressure release of main casing body, produce the vacuum between product and the main casing body to await measuring, measuring position Z adopts floating pin 3 to the reference position, 3 interference of floating pin is in product Z to reference surface 1.0 ~ 1.5mm, the product is automatic under the effect of vacuum suction presses the reference pin, the product is inhaled when whole stably by the vacuum, floating pin 3 then just pushes up on product Z is to the reference surface. And 3D line laser is adopted to scan a Z-direction reference and a 3D outline of a measured part, and the Z-direction distance from the Z-direction reference to a measured position is calculated through software, so that the thickness dimension of the product is measured. After the test is finished, the vacuum switch 6 is unscrewed, the vacuum pressure is discharged, the product is taken out, and the floating pin 3 automatically resets and returns to the state before the test.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a thickness measurement smelting tool, a serial communication port, including the main casing body, be equipped with in the middle of the main casing body surface and open up the board, open up the board and be equipped with the floating round pin all around, main casing body surface four corners is equipped with the fixed orifices, main casing body right side is equipped with air pressure release mouth, the air pressure release mouth outside is equipped with vacuum switch, open up the board with air pressure release mouth intercommunication, the floating round pin stretches out from main casing body inside, and the floating round pin is linear motion along perpendicular main casing body surface direction during the measurement, the interference of floating round pin is in product Z to reference surface 1.0 ~ 1.5mm, and the product is automatic under the effect of vacuum suction presses the benchmark round pin, and when the product is inhaled steadily by the vacuum, floating round pin (3) then push up on product Z is.

2. The thickness measurement tool of claim 1, wherein the main housing has rectangular grooves on both sides of its long side for easy holding and movement by a human hand, the rectangular grooves are axially symmetric with respect to the main housing and are located between the two air relief ports.

3. The thickness measurement tool of claim 1, wherein the two air pressure relief ports are located on the same side of the main housing and are axisymmetric with respect to the main housing, the two air pressure relief ports are controlled by the same pipeline, a vacuum pump is externally connected, and the two air pressure relief ports are simultaneously relieved during operation.

4. A thickness measurement tool according to claim 1, wherein said fixing holes are countersunk bolt holes.

5. A thickness measurement tool according to claim 1, wherein the vacuum switch is of the twist-off type.

6. A thickness measurement tool according to claim 1, wherein the main housing is machined using a machining center.