CN218628093U

CN218628093U - Measuring device

Info

Publication number: CN218628093U
Application number: CN202222049297.3U
Authority: CN
Inventors: 李京华; 丁有爽; 邵天兰; 付翱
Original assignee: Mecarmand Shanghai Robot Technology Co ltd
Current assignee: Mecarmand Shanghai Robot Technology Co ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2023-03-14
Anticipated expiration: 2032-08-04

Abstract

The utility model discloses a measuring device has improved and has measured the relatively poor technical problem of precision. The device comprises a support frame, and a scanner, a carrying jig and a driving device which are respectively arranged on the support frame, wherein the carrying jig is used for placing an object to be tested, and at least one profiling block is also arranged on the carrying jig; the driving device is used for controlling the carrying jig or/and the scanner to move along the horizontal direction, and the profiling blocks can be scanned together when the scanner scans an object to be detected. The utility model discloses measuring device's measurement precision can be improved.

Description

Measuring device

Technical Field

The utility model belongs to the technical field of the profile modeling is measured, concretely relates to measuring device.

Background

Conventionally, a measuring device for measuring a surface shape or a three-dimensional shape of an object to be measured by scanning a surface of the object with a scanning probe is called a scanning measuring device, and a strain displacement sensor or a linear laser sensor is often used as a conventional scanning measuring device.

In the use process of the measuring device in the related art, the measuring device is often influenced by environmental factors or the temperature drift phenomenon of the sensor, and the temperature drift is caused mainly because the temperature of the sensor is lower when the sensor is just electrified, and after the measuring device is used for a period of time, the temperature of semiconductor components inside the sensor rises, so that zero drift is generated, and the measuring precision of the line laser sensor is influenced.

Therefore, the measuring device in the related art has the defect of poor measuring accuracy, and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned whole or partial problem, an object of the utility model is to provide a measuring device can improve measuring device's measurement precision.

The utility model provides a measuring device, which comprises a supporting frame, a scanner, a carrying tool and a driving device, wherein the scanner, the carrying tool and the driving device are respectively arranged on the supporting frame;

the driving device is used for controlling the object carrying jig or/and the scanner to move along the horizontal direction, and the shape block can be scanned by the scanner when the object to be detected is scanned.

Optionally, the object carrying jig comprises an object placing area, and the profiling block is located beside the object placing area.

Optionally, the object placing area is located in the middle of the object carrying jig, the number of the profiling blocks is multiple, and the plurality of profiling blocks surround the object placing area.

Optionally, the profiling block is detachably connected or movably placed on the carrying jig.

Optionally, the profile block is a frustum pyramid structure, the frustum pyramid structure includes two parallel surfaces parallel to each other, the areas of the two parallel surfaces are not equal, and the surface with a large area is a lower surface placed on the carrying fixture.

Optionally, the height difference between the two parallel surfaces of the shaped block is greater than or equal to 2mm.

Optionally, at least two opposing sides of the lower surface of the contour block have a side length at least 1mm longer than a side length of two corresponding sides of the upper surface of the contour block.

Optionally, the profile block is made of a hard material.

Optionally, one of the object carrying jig and the scanner is slidably connected to the support frame, and the other is fixedly connected to the support frame, and the driving device is used for controlling the slidable scanner or the object carrying jig to move.

Optionally, the loading jig and the scanner are respectively connected to the support frame in a sliding manner, and the driving device is used for controlling the movement of the scanner and the loading jig in opposite directions.

According to the above technical scheme, the utility model provides a measuring device has following advantage:

the device scans the profile modeling block and the to-be-measured object together, and because the size of the profile modeling block is a fixed value, a worker can compare the standard height and the measurement height of the profile modeling block, so that an error value is obtained, the error value is compensated to the measurement height of the to-be-measured object, a relatively accurate measurement result of the to-be-measured object can be obtained, and the measurement accuracy of the measurement device is effectively improved.

Other features and advantages of the present invention will be set forth in the description that follows.

Drawings

The accompanying drawings are included to provide a further understanding of the technical solutions of the present invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the present invention for explaining the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.

Fig. 1 is a front view of a measuring device according to an embodiment of the present invention;

fig. 2 is a top view of a loading jig of the measuring device in the embodiment of the present invention, showing a state where two profiling blocks are distributed at opposite corners of an object placing area to be measured;

fig. 3 is a top view of a loading jig of the measuring device in an embodiment of the present invention, showing a state where a plurality of profiling blocks are arranged at a side of an object placing area to be measured;

fig. 4 is a top view of a loading jig of the measuring device in an embodiment of the present invention, showing a state where a plurality of profiling blocks surround an object placing area;

FIG. 5 is a front view of a profiling block of a measuring device in an embodiment of the invention;

fig. 6 is a top view of a contour block of a measuring device according to an embodiment of the present invention;

fig. 7 is a front view of the measuring device in the embodiment of the present invention, showing the state of the driving device controlling the movement of the loading jig;

fig. 8 is a front view of the measuring device in the embodiment of the present invention, showing the state that the driving device controls the object holding fixture and the scanner to move toward the opposite direction.

Description of reference numerals:

1. a support frame; 2. a scanner; 3. carrying a fixture; 4. a drive device; 5. a contour block; 6. and an object placing area.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the present invention, the embodiments and features of the embodiments may be arbitrarily combined with each other without conflict.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, the embodiment of the present invention discloses a measuring device, which includes a supporting frame 1, a scanner 2, a loading fixture 3, and a driving device 4 are disposed on the supporting frame 1, and the scanner 2 is disposed above the loading fixture 3.

In one embodiment, as shown in fig. 1 and fig. 2, the object carrying jig 3 is used for placing the object to be tested, and two profile blocks 5 are disposed on the object carrying jig 3. Meanwhile, the driving device 4 is used for controlling the object carrying jig 3 or/and the scanner 2 to move along the horizontal direction, and the simulation block 5 can be scanned together when the scanner 2 scans the object to be measured.

The device scans through the profile modeling piece 5 and the determinand in the lump, because the size of profile modeling piece 5 is the definite value, the staff can contrast the standard dimension and the measurement size of profile modeling piece 5 to reach the error value, compensate the error value to the measurement size of determinand again, can reach the comparatively accurate measuring result of determinand, effectively improve measuring device's measurement accuracy.

The scanner 2 in this embodiment is a line laser sensor, but in other embodiments, a strain gauge displacement sensor, an optical camera, or the like may be used, and a device capable of scanning an object to be measured is not specifically illustrated.

For a clearer understanding, the following are specific examples: if the standard height of the profile block 5 is 5mm and the measurement result shows 5.1mm, an error compensation value of 0.1mm can be obtained. At this time, if the measurement height of the object to be measured is 10mm, the actual height of the object to be measured is 9.9mm by compensating the measurement height of the object to be measured and the error compensation value.

In one embodiment, as shown in fig. 2, the middle position of the surface of the object loading jig 3 is the object placing area 6, and the profiling block 5 is located at the diagonal position of the object placing area 6.

In other embodiments, as shown in fig. 3 and 4, the number of the profiling blocks 5 may be multiple, and multiple profiling blocks 5 are arranged on one side of the object placing area 6, or multiple profiling blocks 5 surround the object placing area 6, which may be determined according to actual situations, as long as the scanner 2 is ensured to be able to scan the profiling blocks 5.

In one embodiment, as shown in fig. 1 and 2, the profiling block 5 is movably placed on the carrying fixture 3 to facilitate the quick adjustment of the position of the profiling block 5 by a worker. In other embodiments, the profiling block 5 can also be detachably connected with the loading jig 3, and the detachable connection mode can adopt magnetic attraction, clamping or bonding and the like, and can also adopt other connection structures as long as the realization can be detachable.

In one embodiment, as shown in fig. 1 and 2, the profiling block 5 is made of hard materials such as steel and hard plastic, and the machining precision of the hard materials is relatively high when the hard materials are machined, and the influence on the error compensation value is small, so that the measurement accuracy is improved.

In one embodiment, as shown in fig. 5 and 6, the shape-changing block 5 has a frustum structure, the upper and lower surfaces of the shape-changing block 5 are respectively parallel to the surface of the loading jig 3, and the lower surface of the shape-changing block 5 is in contact with the loading jig 3, and at least two opposite sides of the lower surface of the shape-changing block 5 have a length at least 1mm longer than two corresponding sides of the upper surface thereof.

In the present embodiment, the upper surface of the contour block 5 is provided in a square configuration with a side length of 3mm, the lower surface of the contour block 5 is provided in a square configuration with a side length of 5mm, and the contour block 5 is made in a regular pyramid configuration. In other embodiments, it may also be provided that: the lower surface of the profiling block 5 is in a rectangular structure with the side length of 1mm multiplied by 2mm, and the lower surface of the profiling block 5 is in a square structure with the side length of 1mm multiplied by 1mm. Similarly, the upper and lower surfaces of the profiling block 5 may be both rectangular structures, as long as the area of the lower surface of the profiling block 5 is ensured to be larger than that of the upper surface, which is not illustrated herein.

In one embodiment, as shown in fig. 5 and 6, the height difference between the upper and lower surfaces of the profiling block 5 is 2mm, so as to facilitate the processing of the profiling block 5 and improve the processing precision. In other embodiments, the height difference between the upper and lower surfaces of the profiling block 5 may be other sizes such as 3mm and 4mm, which are set according to actual needs and are not shown in detail here.

In other embodiments, the profiling block 5 may also be a rectangular parallelepiped, a cube, or a prism structure, and may be processed according to actual requirements, and the shape of the frustum of a prism is only an example scheme in this embodiment. Similarly, the sizes of the upper and lower surfaces of the profiling block 5 can be set according to actual needs, and are not shown here.

In one embodiment, as shown in fig. 1, if the scanner 2 is slidably connected to the supporting frame 1 and the loading fixture 3 is fixedly connected to the supporting frame 1, the driving device 4 is used to control the scanner 2 to slide along the horizontal direction. The driving device 4 can be an electric cylinder, an electric push rod, an air cylinder, etc., as long as the stable movement of the loading fixture 3 can be realized.

In one embodiment, as shown in fig. 7, if the loading fixture 3 is slidably connected to the supporting frame 1 and the scanner 2 is fixedly connected to the supporting frame 1, the driving device 4 is used to control the loading fixture 3 to slide along the horizontal direction. The driving device 4 may also be an electric cylinder, an electric push rod, an air cylinder, etc., as long as the stable movement of the loading fixture 3 can be realized.

Of course, the driving device 4 is not limited to the above-mentioned several kinds, and can also include motor, gear and rack, and on the motor was fixed in support frame 1, on the output shaft of motor was located to the gear fixed sleeve, rack fixed connection was on carrying thing tool 3 to gear and rack meshing, when motor control gear rotated, the gear can drive the rack and drive and carry the motion of thing tool 3. In the same way, the driving device 4 can also be a motor turbine worm structure as long as the stable motion of the loading jig 3 can be realized, and the display is not performed.

In one embodiment, as shown in fig. 8, if the loading jig 3 and the scanner 2 are slidably connected to the supporting frame 1, respectively, the driving device 4 is used to control the movement of the scanner 2 and the loading jig 3 toward opposite directions. The driving device 4 can adopt two air cylinders or two electric push rods, and the like, wherein one electric push rod or air cylinder controls the movement of the object carrying jig 3, and the other electric push rod or air cylinder controls the movement of the scanner 2.

Of course, the driving device 4 is not limited to the above-mentioned several types, and may further include a motor, a gear and two racks, the motor is fixed on the support frame 1, the gear is fixedly sleeved on an output shaft of the motor, one rack is fixedly connected to the loading jig 3, the other rack is fixedly connected to the scanner 2, and the two racks are engaged with two sides of the gear, when the motor controls the gear to rotate, the gear may drive the two racks to move, so that the loading jig 3 and the scanner 2 move toward the opposite direction. In the same way, the driving device 4 can also be a motor, a turbine, a worm and the like, as long as the stable movement of the loading jig 3 can be realized, and the display is not performed.

It should be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not intended to be limited to the particular embodiments disclosed herein, but rather to include all embodiments falling within the scope of the appended claims.

Claims

1. The measuring device is characterized by comprising a support frame (1), and a scanner (2), a carrying jig (3) and a driving device (4) which are respectively arranged on the support frame (1), wherein the carrying jig (3) is used for placing an object to be measured, and at least one profiling block (5) is also arranged on the carrying jig (3);

the driving device (4) is used for controlling the loading jig (3) or/and the scanner (2) to move along the horizontal direction, and the profiling blocks (5) can be scanned together when the scanner (2) scans an object to be measured.

2. The measuring device according to claim 1, characterized in that the loading jig (3) comprises a test object placement area (6), and the profile block (5) is located beside the test object placement area (6).

3. The measuring device according to claim 2, wherein the object placement area (6) is located at a middle position of the carrying fixture (3), the number of the contour blocks (5) is multiple, and the plurality of contour blocks (5) surround the object placement area (6).

4. The measuring device according to claim 1, characterized in that the shape-forming blocks (5) are detachably connected or movably placed on the loading fixture (3).

5. Measuring device according to claim 1, characterized in that the shaped block (5) is a prismatic table structure comprising two parallel surfaces parallel to each other, the areas of which are not equal, wherein the surface of large area is the lower surface placed on the loading fixture (3).

6. A measuring device according to claim 5, characterized in that the difference in height of the two parallel surfaces of the shaped block (5) is greater than or equal to 2mm.

7. A measuring device according to claim 5, characterized in that the sides of at least two opposite sides of the lower surface of the shaped block (5) are at least 1mm longer than the sides of the corresponding two sides of the upper surface.

8. A measuring device according to claim 1, characterized in that the shaped mass (5) is made of a hard material.

9. The measuring device according to claim 1, characterized in that one of the carrier jig (3) and the scanner (2) is slidably connected to the support frame (1) and the other is fixedly connected to the support frame (1), and the driving device (4) is used for controlling the movement of the slidable scanner (2) or carrier jig (3).

10. The measuring device according to claim 1, wherein the loading fixture (3) and the scanner (2) are slidably connected to the support frame (1), respectively, and the driving device (4) is configured to control the movement of the scanner (2) and the loading fixture (3) in opposite directions.