CN202002606U - Sheet metal part planeness measuring device - Google Patents

Abstract

The utility model discloses a sheet metal part planeness measuring device which comprises a horizontal beam, a calipers seat arranged on the beam and capable of translating along the beam, and a pair of calipers penetrating through the calipers seat and vertical to the beam, wherein two sides of the calipers seat are respectively provided with an adjusting bolt used for adjusting the verticality of the calipers, and a fixing bolt for locking the calipers is arranged on one side of the calipers seat. As the horizontal beam is contacted with a detected surface of a sheet metal part product, and the maximal planeness of the surface of the sheet metal part product can be detected by translating the calipers seat and releasing the calipers. The measuring device has the advantages of being simple and convenient for operation, and fast and accurate in measurement, improving the detection efficiency and reducing the detection cost.

Description

A flatness measuring device for sheet metal parts

technical field

The utility model belongs to flatness measuring tools, in particular to a flatness measuring device for sheet metal parts.

Background technique

In the flatness measurement of sheet metal products, most of them use height gauge or three-coordinate measurement, but these two measurement methods have their limitations, as shown in:

First, if the flatness of a sheet metal part with a plate thickness of 2mm is measured, the product must be padded with a block of equal height when measuring with a height gauge. At this time, the gravity of the product itself has affected the flatness of the entire product, thus cause inaccurate measurements.

Second, when using three-coordinate measurement, if the product is placed horizontally, it will affect the flatness of the product just like the height gauge measurement; if the product is placed vertically, it is difficult to take the three-coordinate point, and it is difficult to guarantee the verticality of the product. In addition, taking points according to the three coordinates to confirm the flatness of the entire surface requires a large number of measurement points, which wastes a lot of time and increases the inspection cost.

Utility model content

The technical problem to be solved by the utility model is to provide a flatness measuring device for sheet metal parts that can avoid misoperation.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A flatness measuring device for sheet metal parts includes a horizontal beam, a caliper seat arranged on the beam and capable of translating along the beam, a caliper passing through the caliper seat and perpendicular to the beam, and two sides of the caliper seat are respectively provided for adjusting the verticality of the caliper. The adjusting bolts of the caliper seat are also provided with fixing bolts for locking the caliper on one side of the caliper seat.

The caliper seat is horizontally provided with a sliding hole sleeved on the beam and capable of translation along the beam, and the caliper seat is longitudinally provided with a jack for the caliper to pass through.

The surface of the caliper seat is provided with a chrome-plated layer.

The length of the beam is more than 1000mm.

Adopting the above technical solution, the device for measuring the flatness of sheet metal parts includes a horizontal beam, a caliper base mounted on the beam and capable of translation along the beam, a caliper passing through the caliper base and perpendicular to the beam, and two sides of the caliper base are respectively provided with An adjusting bolt for adjusting the verticality of the caliper, and a fixing bolt for locking the caliper is also arranged on one side of the caliper seat. By contacting the horizontal beam with the surface to be tested of the sheet metal product, and by translating the caliper base and lowering the caliper, the maximum flatness of the product surface is detected. The measuring device has the advantages of simple and convenient operation, fast and accurate measurement, improved detection efficiency and reduced detection cost.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in detail:

FIG. 1 is a schematic structural view of a flatness measuring device for sheet metal parts of the present invention.

Detailed ways

As shown in Figure 1, the flatness measuring device for sheet metal parts of the present invention includes a horizontal beam 1, a caliper base 2 that is arranged on the beam 1 and can translate along the beam 1, and a caliper base that passes through the caliper base 2 and is perpendicular to the beam 1 Both sides of the caliper 5 and the caliper seat 2 are respectively provided with adjusting bolts 3 for adjusting the verticality of the caliper 5 , and one side of the caliper seat 2 is also provided with a fixing bolt 4 for locking the caliper 5 . The caliper base 2 is horizontally provided with a sliding hole that is sleeved on the beam 1 and can translate left and right along the beam 1, and the caliper base 2 is longitudinally opened with a jack 6 for the caliper 5 to pass through, and the caliper 5 can move along the jack 6. Move vertically up and down. The surface of the caliper base 2 is also provided with a chrome-plated layer to make it more flexible in translation and sliding. In addition, the length of the beam 1 is designed to be more than 1000mm, and can be 1000mm, 1500mm, 2000mm, etc., which is suitable for sheet metal products of different areas.

Before use, first put the caliper 5 into the caliper seat 2, rotate the fixing bolt 4 to fix the caliper 5; then place the measuring device on the horizontal inspection platform, adjust the verticality of the caliper 5 by adjusting the adjusting bolt 3, If the measurement accuracy is high, you can use three coordinates to measure and verify whether the position of the caliper 5 is perpendicular to the beam 1; after the verticality adjustment is completed, tighten the adjusting bolt 3 to complete the assembly and adjustment of the measuring device, and there is no need to disassemble the caliper afterwards 5. It is only necessary to regularly check the verticality of the fixed caliper 5 and the beam 1. The measurement operation process of on-site personnel is as follows:

First place the measuring device after commissioning on the horizontal platform to reset the caliper 5; then place the sheet metal product in a natural state (that is, all the parts involved in the force will not affect the flatness); then make the measuring device close to the product The contact point on the surface to be measured; then loosen the fixing bolt 4, so that the caliper 5 moves down and reads, and then the maximum flatness of the product can be measured by moving the caliper seat 2 laterally, and the measurement is completed.

The following is a comparison of products with a measured diagonal of 1000mm:

The flatness of the product measured by the existing three coordinates is 3.37mm (the product is placed horizontally), 3.01mm (the product is placed vertically), and the measurement time is 7.5 minutes (the product is placed horizontally)/12 minutes (the product is placed vertically); and Using the existing height ruler, the measurement cannot be completed due to structural limitations; the flatness measured by the measuring device of the present invention is 3.29mm (the product is naturally placed) and the measurement time is 0.5 minutes.

From the above example measurement, it can be concluded that the applicable range of this measuring device is wider than that of a height gauge to measure flatness, and the actual measured value is close to the measured value of the three-coordinate measurement product vertically, and the difference between the two is 0.08mm. 2mm large-area products can fully meet the measurement accuracy requirements. For example: if the flatness of the product is required to be 1mm, the measured value using this measuring device is less than 0.85mm before it can be judged as qualified; when the measured value is 0.85mm-1mm, it should be confirmed whether the flatness of the product is qualified by a more precise instrument; but During the on-site measurement and testing process, it has been able to meet the measurement needs of most products. However, since the measurement time is at least 7 minutes shorter than the existing method, it has a positive effect on the on-site detection cost and detection efficiency.

In summary, the measuring device of the present invention has the following advantages:

1. Superior to the height gauge, it is suitable for measuring the flatness of products with large surface area;

2. The caliper seat 2 adopts chrome-plated process, which is more flexible in translation and sliding;

3. The measurement time is much shorter than that of the three-coordinate measurement, and the error can be eliminated by changing the inspection standard, so as to meet the requirements of the actual product measurement process;

4. It is beneficial to confirm the flatness of the product on the spot, next to the machine tool, and on the inspection table in time, avoiding the time and manpower spent on moving the product from the site to the three-coordinate place, and the cost of the product. The detection cost and detection efficiency have been significantly improved;

5. In addition to the flatness measurement of sheet metal products, it is also suitable for the flatness measurement of other product surfaces.

However, those skilled in the art should recognize that the above-mentioned specific implementation is only exemplary, and it is for better understanding of the patent by those skilled in the art, and should not be understood as limiting the scope of protection of the patent. Any equivalent changes or modifications made to the spirit disclosed in the patent fall within the protection scope of this patent.

Claims (3)

1. A flatness measuring device for sheet metal parts, characterized in that, It includes a horizontal beam, a caliper base that is arranged on the beam and can translate along the beam, and a caliper that passes through the caliper base and is perpendicular to the beam. Adjusting bolts are provided on both sides of the caliper base to adjust the verticality of the caliper. Equipped with fixing bolts for locking calipers. 2. The flatness measuring device for sheet metal parts according to claim 1, characterized in that: The caliper seat is horizontally provided with a sliding hole sleeved on the beam and capable of translation along the beam, and the caliper seat is longitudinally provided with a jack for the caliper to pass through. 3. The flatness measuring device for sheet metal parts according to claim 1, characterized in that: The surface of the caliper seat is provided with a chrome-plated layer.

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