CN105115407A - Portable multifunctional planeness detection device and application method therefor - Google Patents

Abstract

The invention provides a portable multifunctional flatness detection device, which includes a beam, on which at least two supports are in contact with the surface to be tested, the bottoms of each support are located on the same plane, and there are also two supports on the beam. At least one altimeter is provided. The bottoms of the supports on the portable multifunctional flatness detection device are located on the same plane, so that each support can determine one plane by contacting the surface to be measured, and then move or rotate the position of the detection device on the surface to be measured to determine another. The plane, so that the height change between each plane can be determined according to the change of the altimeter, and the reading range of the altimeter can be used to measure the flatness error of the surface to be measured. The detection device has a simple structure and is easy to use. It can detect the flatness very quickly. In addition to detecting the flatness, it can also detect the parallelism and straightness of the guide rail. Therefore, it also has a wide range of applications and is convenient for on-site detection. Promotion and other advantages, has a very high marketing value.

Description

Portable multifunctional flatness detection device and method of use thereof

technical field

The invention relates to a flatness detection device, in particular to a portable multifunctional flatness detection device and a method for detecting flatness by using the detection device.

Background technique

Flatness refers to the amount of variation between the measured actual surface and its ideal plane, and refers to the deviation of the macroscopic concave-convex height of the substrate from the ideal plane. There are many existing methods for measuring plane, such as flat crystal interferometry, gauge measurement, liquid level method, beam plane method, and laser flatness measuring instrument. Very specialized tools are required for detection. Taking the metering measurement method as an example, when testing, it is necessary to place the measured part and the micrometer on a standard flat plate, use the standard flat plate as the measurement reference plane, and use the micrometer to point by point along the actual surface or along several straight lines direction to measure. The metering measurement method is divided into the three-point method and the diagonal method according to the evaluation reference plane: the three-point method uses the ideal plane determined by the three points farthest apart on the actual surface to be measured as the evaluation reference plane. Adjust the three points farthest apart on the actual surface to be equal to the height of the standard flat plate; when measuring with the diagonal method, first adjust the four corner points on the actual surface to be equal to the height of two by two diagonally. Then use a micrometer to measure, and the maximum variation measured by the micrometer on the entire actual surface is the flatness error of the actual surface.

From the above description, it can be seen that when using the metering method to test the flatness of the measured part, a standard flat plate is required as a reference. However, in the actual production process, there are no standard flat plates in many occasions (such as some construction sites), so it is difficult to determine the flatness of the measured part. Therefore, it is necessary to design a portable flatness detection device to detect the flatness of the tested parts.

Contents of the invention

In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a portable multifunctional flatness detection device with simple structure, convenient use, on-site detection and multiple functions.

In order to achieve the above and other related purposes, the present invention provides a portable multifunctional flatness detection device, which includes a beam on which at least two supports can be determined when the supports are in contact with the surface to be measured. plane, and at least one altimeter is provided on the beam.

Preferably, two supports are provided on the crossbeam, the bottom of one support is a point-shaped support part, the bottom of the other support is a linear support part, and the point of the point-shaped support part is in contact with the point-shaped support. The above-mentioned linear shape is that the lines of the support portion are not on the same straight line.

Preferably, one of the support members is a conical structure, and the other support member is a V-shaped structure.

Preferably, two supports are provided on the beam, one point-shaped support is provided at the bottom of one support, and two point-shaped supports are provided at the bottom of the other support.

Preferably, three supports are provided on the beam, and the bottoms of the three supports are point-shaped support parts, and the three point-shaped support parts are not on the same straight line.

Preferably, the support member is movably connected to the beam.

Preferably, the beam is provided with a long slot, and the support member is slidably located in the long slot.

The invention also discloses several usage methods of the portable multifunctional flatness detection device:

When detecting the flatness of the plane to be inspected, first place the probe contact of the altimeter of the detection device on the plane formed by the contact points of the support, and adjust the altimeter to zero. When it is necessary to detect the flatness of the plane to be inspected , place the detection device on the plane to be inspected at different angles at least twice, so that the bottom of the support used is in contact with the plane to be inspected, and read the reading of the altimeter, and select the absolute value of the maximum positive reading and the maximum negative reading of the altimeter The sum is used to measure the flatness error of the surface to be measured.

When detecting the parallelism error of two guide rails, first set a reading platform between the two guide rails, place a part of the support of the detection device on one end of a guide rail, and place the other part of the support of the detection device on the On the other end of the other guide rail, make the detection device obliquely span between the two guide rails, make the altimeter touch the reading platform and adjust the altimeter to zero, then rotate the beam of the detection device at a certain angle with the reading platform as the center of the circle, and read the altimeter The maximum reading is used to measure the parallelism error of the two guide rails.

When detecting the straightness of the narrow and long plane, first place the contact point of the altimeter of the detection device on the plane formed by the contact points of the support, and adjust the altimeter to zero. When it is necessary to detect the straightness of the plane to be inspected , place the detection device on the plane to be inspected, make all supports contact with the plane to be inspected, and move the detection device back and forth, read the reading of the altimeter, and select the maximum reading of the altimeter to measure the straightness error of the plane to be inspected.

As mentioned above, the portable multifunctional flatness detection device and its use method of the present invention have the following beneficial effects: the bottom of the support on the portable multifunctional flatness detection device is in contact with the surface of the workpiece to be measured to determine a plane, and then The position of the mobile detection device can determine another plane, which can determine the amount of variation between each plane according to the change of the altimeter, so that the reading range of the altimeter can be used as a measure of flatness error. The detection device has a simple structure and is easy to use. It can detect the flatness very quickly. In addition to detecting the flatness error, it can also detect the parallelism error between the guide rails and the straightness error of the guide rails, so it also has a wide range of applications. Wide, easy to promote, on-site on-line detection and other advantages, has a very high market promotion value.

Description of drawings

Fig. 1 is a schematic structural diagram of the first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 3 is a schematic diagram of the structure of the present invention when it is placed on a standard plane for zero adjustment.

Fig. 4 is a schematic diagram of the structure of the embodiment of the present invention when the flatness is tested for the first time.

Fig. 5 is a schematic structural diagram of the second placement when the flatness is tested according to the embodiment of the present invention.

Fig. 6 is a schematic structural diagram of the first placement when the embodiment of the present invention detects parallelism.

Fig. 7 is a schematic structural diagram of the second placement when detecting the parallelism according to the embodiment of the present invention.

Fig. 8 is a schematic diagram of the arrangement of the embodiment of the present invention when testing the straightness.

Component designation description

1. Flatness detection device 11, beam 12, altimeter 13, first support 14, second support 141, support foot 142, support foot 2, reference platform 3, plane to be detected 4, guide rail 5, reading platform 6, Narrow long plane.

Detailed ways

The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

See Figures 1 through 8. It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable scope of the invention and the change or adjustment of its relative relationship shall also be regarded as the practicable scope of the present invention without any substantial change in the technical content.

As shown in Figure 1, the present invention provides a portable multifunctional flatness detection device, which includes a beam 11, a first support 13 and a second support 14 are respectively arranged at both ends of the beam 11, and on the scale 11 Also be provided with altimeter 12, altimeter 12 can be provided with one or more. The bottom of the first support member 13 is a point-shaped support portion, that is, its contact with the contact surface is a point contact, and the bottom of the second support member 14 is a linear support portion, that is, its contact with the support surface is a line contact. As a preferred implementation manner, the first support member 13 may have a conical structure, and the second support member 14 may have a V-shaped structure.

When this portable multifunctional flatness detection device is in use, the first support 13 and the second support 14 need to be supported on the plane to be detected, so that the bottoms of the first support 13 and the second support 14 are respectively in contact with the plane to be tested. Detected planar contact. In order to adapt to planes of different sizes, a long groove can be set on the beam 11, and the first support member 13 and the second support member 14 can be respectively moved in the long groove, so that the first support member can be very conveniently 13. The distance between the second support members 14 is adjusted so that the flatness detection device is suitable for planes of different sizes.

One support of the portable multifunctional flatness detection device is in point contact with the plane, and the other support is in line contact with the plane, because a point and a straight line can form a plane, so that the distance between each plane can be determined according to the degree of the altimeter. In this way, it can provide a reference for measuring the flatness of the plane to be detected.

Multiple supports on the above-mentioned crossbeam can be provided as required, as long as the support points at the bottom of the supports are on the same plane. As shown in Figure 2, the second support 14 on the crossbeam 11 is provided with two supporting feet 141,142, and the two supporting feet 141,142 are two point-shaped supporting parts, because three points can determine a plane, so it can be Make sure that the support points at the bottom of the support are on the same plane. As another embodiment of the present invention, three supports can be provided on the beam 11, the bottoms of the three supports are point-shaped support parts, and the three point-shaped support parts are not on the same straight line, so that the three supports The pieces can also define a plane.

The flatness detection device can be used to detect the flatness, parallelism and straightness of workpieces. The following describes the detection method using the flatness detection device in conjunction with the accompanying drawings:

The specific operation steps when detecting the flatness of the plane are as follows: first, as shown in Figure 3, the altimeter 12 is zeroed, and the flatness detection device can be directly placed on a reference plane 2 when zeroing, and then the altimeter zeroing. When the flatness detection device 1 is placed on the reference plane, adjust the distance between the first support member 13 and the second support member 14 with reference to the size of the plane to be detected, and the distance between the two should be as large as possible, so that Can make the detection result more accurate. After the altimeter 12 is zeroed, the plane to be detected can be detected. During detection, as shown in Figure 4, the plane detection device is placed on the plane to be inspected, so that the first support and the second support are in contact with the plane to be inspected. , and read the altimeter reading, and record it. Then, as shown in Figure 5, the crossbeam 11 is rotated at a certain angle, and the above steps are repeated, and the plane to be detected is detected in the same way, and the reading of the altimeter is recorded, and the sum of the absolute values of the maximum positive reading and the maximum negative reading of the altimeter is selected To measure the flatness error of the surface to be measured. The above detection method can be repeated many times, and the sum of the absolute values of the maximum positive reading and the maximum negative reading of the altimeter should be selected to measure the flatness error of the surface to be measured.

The specific operation steps for detecting the parallelism error of the two guide rails are as follows: first, as shown in Figure 6, a reading platform 5 is determined between the two guide rails 4, and the detection device 1 is placed on the two guide rails 4 so that the first support Part 13 is supported on one guide rail, second support member 14 is supported on another guide rail, altimeter 12 is supported on the reading platform 5, altimeter 14 is adjusted to zero, then as shown in Figure 7, the crossbeam of detection device 1 Rotate a certain angle with the reading platform as the center of the circle, so that the positions of the two supports 13, 14 and the contacting guide rails are interchanged, and then read the reading of the altimeter 12, which can be used as a reference for measuring the parallelism of the two guide rails 4 . Similarly, the beam 11 can be rotated several times, and the maximum reading of the altimeter can be selected to measure the parallelism error of the two guide rails.

The specific operation steps for detecting the straightness of a narrow flat plane are as follows: first, as shown in Figure 3, the altimeter 12 is zeroed, and the flatness detection device can be directly placed on a reference plane 2 when zeroing, and then the altimeter zeroing. When it is necessary to detect the straightness of the narrow and long plane, as shown in Figure 8, the detection device is placed on the narrow and long plane 6 to be checked, so that the first support member 13, the second support member 14 and the narrow and long plane 6 to be checked Contact and read the readings of the altimeter, and select the one with the largest reading of the altimeter as the straightness of the narrow and long plane to be checked. When detecting, the distance between the first support member 13 and the second support member 14 should be as far as possible, and it can be moved back and forth multiple times on the narrow and long plane 6 to be checked, and the maximum degree is selected to measure the degree of the plane to be checked. straightness error.

Each support of the portable multi-functional flatness detection device can determine a plane by contacting the surface to be measured, and then move or rotate the position of the detection device on the surface to be measured to determine another plane, which can be determined according to the change of the altimeter The position changes between the various planes, so that the reading range of the altimeter can be used to measure the flatness error of the surface to be measured.

The detection device is simple in structure and easy to use, and can detect the flatness error very quickly. In addition to detecting the flatness error, it can also detect the parallelism error between the guide rails and the straightness error of the guide rails, so it also has application It has the advantages of wide range, convenient on-site detection, and easy promotion, etc., and has extremely high market promotion value.

The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims (10)

1. A portable multifunctional flatness detection device, characterized in that: it comprises a crossbeam, said crossbeam is provided with at least two supports, a plane can be determined when the supports contact with the surface to be measured, and said crossbeam At least one altimeter is also provided. 2. The portable multi-functional flatness detection device according to claim 1, characterized in that: the beam is provided with two supports, wherein the bottom of one support is a point-shaped support, and the other support is The bottom line is a support portion, and the point of the point-shaped support portion is not on the same straight line as the line of the linear support portion. 3. The portable multi-functional flatness detection device according to claim 2, wherein one of the support members is a conical structure, and the other support member is a V-shaped structure. 4. The portable multifunctional flatness detection device according to claim 1, characterized in that: the beam is provided with two supports, wherein the bottom of one support is provided with a point-like support, the other The bottom of the support is provided with two point-shaped support parts. 5. The portable multifunctional flatness detection device according to claim 1, characterized in that: the beam is provided with three supports, the bottoms of the three supports are point-shaped support parts, and the three point-shaped support parts not on the same straight line. 6. The portable multifunctional flatness detection device according to claim 1, characterized in that: the support member is movably connected to the beam. 7 . The portable multifunctional flatness testing device according to claim 6 , wherein a long slot is provided on the beam, and the support member is slidably located in the long slot. 8 . 8. A method of using the portable multifunctional flatness detection device according to claim 1, wherein, when detecting the flatness of the plane to be inspected, at first the probe contact of the altimeter of the detection device is placed on the support Set the altimeter to zero on the plane formed by the contact points. When it is necessary to test the flatness of the plane to be tested, place the detection device on the plane to be tested at least twice at different angles, so that the bottom of the support used is in line with the Contact the plane to be tested, and read the reading of the altimeter, and select the sum of the absolute values of the maximum positive reading and the maximum negative reading of the altimeter to measure the flatness error of the surface to be tested. 9. A method for using the portable multifunctional flatness detection device of claim 1, wherein, when detecting the parallelism errors of two guide rails, at first a reading platform is set between the two guide rails, and the detection One part of the supporting part of the device is placed on one end of a guide rail, and the other part of the supporting part of the detection device is placed on the other end of the other guide rail, so that the detection device is obliquely spanned between the two guide rails, so that the altimeter touches the reading platform and Adjust the altimeter to zero, then rotate the beam of the detection device at a certain angle with the reading platform as the center, and read the maximum reading of the altimeter to measure the parallelism error of the two guide rails. 10. A method of using the portable multifunctional flatness detection device according to claim 1, wherein, when detecting the straightness of the narrow and long plane, at first the probe contact of the altimeter of the detection device is placed on the support Set the altimeter to zero on the plane formed by the contact points of the contact points. When it is necessary to detect the straightness of the plane to be inspected, place the detection device on the plane to be inspected, so that all supports are in contact with the plane to be inspected, and move the device back and forth. The detection device reads the reading of the altimeter, and selects the maximum reading of the altimeter to measure the straightness error of the plane to be inspected.