CN211903951U

CN211903951U - Steel ruler calibrating device and calibrating system thereof

Info

Publication number: CN211903951U
Application number: CN202020586361.XU
Authority: CN
Inventors: 孙晓辉
Original assignee: Guangzhou Institute of Technology
Current assignee: Guangzhou Institute of Technology
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-11-10
Anticipated expiration: 2030-04-17

Abstract

The utility model belongs to metrological verification field discloses a steel ruler calibrating installation and verification system thereof. The calibrating device for the straight steel ruler comprises a calibrating component and a conveying component, wherein the calibrating component comprises a calibrating seat, a standard ruler and a photographic detection component, the standard ruler and the photographic detection component are both arranged on the calibrating seat, and the detection part of the photographic detection component is opposite to the scale position of the standard ruler; the conveying assembly comprises a conveying seat, a conveying mechanism and a guide plate, the conveying mechanism is installed on the conveying seat, one end of the guide plate is connected to the conveying seat on one side of the output end of the conveying mechanism, and the other end of the guide plate is opposite to the standard ruler. The device reduces manual operation and improves the verification accuracy.

Description

Steel ruler calibrating device and calibrating system thereof

Technical Field

The utility model belongs to metrological verification field, especially a steel ruler calibrating installation and verification system thereof.

Background

The straightedge is the most common length measurement standard instrument and is widely used in production, manufacture, research and development, test and other occasions, so the accuracy of the straightedge also has requirements, and if the accuracy of the straightedge does not meet the requirements or the deviation is large, the measurement result is influenced.

In order to calibrate the straightedge, a combined mode of a calibration table and a standard ruler is adopted, the ruler to be calibrated and the standard ruler placed on a workbench are close to each other and then are zeroed, but the operation is manual operation, so that the efficiency is low, reading errors are not easily caused by operators, and the calibration accuracy of the straightedge is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to improve prior art's shortcoming, provide a steel ruler calibrating installation and verification system thereof, reduce manual operation, improve and examine and determine the rate of accuracy.

The technical scheme is as follows:

the calibrating device for the straight steel ruler comprises a calibrating component and a conveying component, wherein the calibrating component comprises a calibrating seat, a standard ruler and a photographic detection component, the standard ruler and the photographic detection component are both arranged on the calibrating seat, and the detection part of the photographic detection component is opposite to the scale position of the standard ruler; the conveying assembly comprises a conveying seat, a conveying mechanism and a guide plate, the conveying mechanism is installed on the conveying seat, one end of the guide plate is connected to the conveying seat on one side of the output end of the conveying mechanism, and the other end of the guide plate is opposite to the standard ruler.

During detection, the straightedge is placed on the conveying mechanism of the conveying assembly, the straightedge is conveyed to the guide plate by the transmission mechanism, and the straightedge is moved to one side of the standard ruler under the action of the guide plate, so that manual operation is avoided in the process, and the straightedge cannot be influenced by artificial action. And after the straight steel ruler is placed in place, photographing a detection part of the photographing detection assembly and conveying the photographed detection part to a processing center, and detecting whether the error between the straight steel ruler and the standard ruler is within an allowable range to finish the detection of the straight steel ruler. In the detection process, only the working personnel are required to place the straight steel ruler on the conveying mechanism, and other steps can be completed without manual operation, so that the detection efficiency is obviously improved.

The photographic detection assembly comprises a camera, a rack and a lead screw module, the lead screw module is installed on the conveying seat, and the moving direction of the lead screw module is the same as the measuring direction of the standard ruler; one end of the rack is connected to the moving end of the lead screw module, the other end of the rack is fixed to the camera, and the camera faces to the scale position of the standard ruler. When the detection is carried out, the camera mounted on the frame is conveyed to different positions by utilizing the linear conveying effect of the screw rod module, and the camera can shoot scale conditions of different positions at the moment so as to detect the straightedge. And the screw rod module is also ensured on the transmission precision.

The calibrating assembly further comprises a limiting block, the standard ruler is obliquely arranged on the calibrating seat, and the limiting block is fixedly arranged at the bottom of the calibrating seat and limits the standard ruler. The stopper passes through the nail body to be fixed on examining the seat, and its position is guaranteed unchangeably to the standard ruler under the spacing of stopper, is favorable to improving detection accuracy.

The conveying mechanism comprises a first motor, a conveying belt and a plurality of belt pulleys, the first motor drives the belt pulleys, and the conveying belt is installed on the belt pulleys and follows the belt pulleys to rotate. The first motor controls the belt pulley to rotate, so that the conveying belt is driven to rotate, the straight steel ruler is placed on the conveying belt, and the straight steel ruler is conveyed.

The guide plate is rotatably connected to the conveying seat and can rotate at least between a standard ruler scale alignment position and a position lower than the standard ruler scale position, and when the guide plate is aligned with the standard ruler scale, the guide plate inclines from one rotating side to one side of the standard ruler. The guide plate is connected in a rotating mode, so that the guide plate can rotate around the connecting position of the conveying seat. The guide plate can rotate to a position aligned with the scale of the standard ruler, so that the straight steel ruler can smoothly slide to the scale position of the standard ruler for verification; after the calibration is finished, the guide plate is rotated to be lower than the scale position of the standard ruler, the guide plate is not in contact with the calibration assembly at the moment, a gap exists, the straight steel ruler can slide off, when the straight steel ruler needs to be detected again, the guide plate rotates to the position aligned with the scale position of the standard ruler, and the next calibration step is carried out. Therefore, even after the detection is finished, the detection can be taken out without manual operation.

The conveying assembly further comprises a push rod and a telescopic push rod, one end of the telescopic push rod is fixed to the conveying seat, the other end of the telescopic push rod is hinged to the push rod, and the other end of the push rod is hinged to the guide plate. The telescopic push rod is used for providing power, and the push rod pushes the guide plate to rotate.

The push rod is an electric hydraulic push rod. The electric control mode is adopted, the telescopic action can be controlled according to the requirement, the precision of the hydraulic push rod is high, and the movement speed is suitable.

The guide plate is provided with a second motor and a position adjusting piece, a cam is connected to a rotating shaft of the second motor, and the cam is matched with the adjusting piece to drive the adjusting piece to move on the guide plate. When the straight steel ruler works, the straight steel ruler slides onto the guide plate, and the position of the adjusting piece is controlled by driving the cam through the second motor due to zero alignment, the adjusting piece pushes the straight steel ruler to move, and after the zero point of the straight steel ruler is aligned with the zero point of the standard ruler and captured by the camera, the movement of the second motor is immediately stopped.

The adjusting part comprises a pushing block, a fixed block and a spring, the fixed block is fixed on the guide plate, the pushing block is movably connected onto the fixed block, the spring is installed between the fixed block and the pushing block, and the spring extrudes the pushing block to approach the cam. The pushing block always has a tendency towards the cam by the action of the spring, so that the pushing block can be controlled to be always attached to the cam, and the rotation of the cam can be fed back to the pushing block.

The steel ruler calibrating system comprises an electric cabinet and the steel ruler calibrating device, wherein the electric cabinet is electrically connected with the photographic detection assembly and the transmission mechanism. And accurately controlling the calibration of the whole steel ruler calibration device by using the electronic control box.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles, principles and effects of the invention.

Unless otherwise specified or defined, the same reference numerals in different figures refer to the same or similar features, and different reference numerals may be used for the same or similar features.

Fig. 1 is a schematic perspective view of a first operating state of the embodiment of the present invention;

fig. 2 is a schematic view of another perspective structure in a first working state of the embodiment of the present invention;

fig. 3 is an enlarged schematic view of a structure at a in fig. 2 according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a second operating state of the embodiment of the present invention;

fig. 5 is a schematic view of a three-dimensional structure of an electric cabinet according to an embodiment of the present invention.

Description of reference numerals:

10. a verification component; 11. a detection seat; 12. a standard ruler; 13. a photographic detection assembly; 131. a camera; 132. a frame; 133. a screw rod module; 14. a limiting block; 20. a delivery assembly; 21. a conveying seat; 22. a transport mechanism; 221. a first motor; 222. a conveyor belt; 223. a belt pulley; 23. a guide plate; 24. a push rod; 25. a telescopic push rod; 26. a second motor; 27. a position adjustment member; 271. a pushing block; 272. a fixed block; 273. a spring; 28. a cam; 30. an electric cabinet; 40. a straight steel ruler.

Detailed Description

In order to facilitate an understanding of the invention, specific embodiments thereof will be described in more detail below with reference to the accompanying drawings.

Unless specifically stated or otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In the case of combining the technical solution of the present invention with realistic scenarios, all technical and scientific terms used herein may also have meanings corresponding to the objects of realizing the technical solution of the present invention.

As used herein, unless otherwise specified or defined, "first" and "second" … are used merely for name differentiation and do not denote any particular quantity or order.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items, unless specified or otherwise defined.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present.

As shown in fig. 1 and 2, the straightedge calibrating device comprises a calibrating assembly 10 and a conveying assembly 20, wherein the calibrating assembly 10 comprises a calibrating seat 11, a standard ruler 12 and a photogrammetric detection assembly 13, the standard ruler 12 and the photogrammetric detection assembly 13 are both mounted on the calibrating seat 11, and a detection part of the photogrammetric detection assembly 13 is opposite to the scale position of the standard ruler 12; the conveying assembly 20 comprises a conveying seat 21, a conveying mechanism 22 and a guide plate 23, wherein the conveying mechanism 22 is installed on the conveying seat 21, one end of the guide plate 23 is connected to the conveying seat 21 on one side of the output end of the conveying mechanism 22, and the other end of the guide plate 23 is opposite to the standard ruler 12.

During detection, the straightedge 40 is placed on the conveying mechanism 22 of the conveying assembly 20, the straight straightedge 40 is conveyed to the guide plate 23 through the transmission mechanism, and the straightedge 40 moves to one side of the standard ruler 12 under the action of the guide plate 23, so that manual operation is avoided in the process, and the straightedge is not influenced by artificial action. After the straight steel ruler 40 is placed in place, the detection part of the photographic detection assembly 13 is photographed and conveyed to a processing center, whether the error between the straight steel ruler 40 and the standard ruler 12 is within an allowable range is detected, and the detection of the straight steel ruler 40 is completed. In the detection process, only the staff need place the straightedge 40 on transport mechanism 22, and the rest steps can be accomplished without manual operation, so the detection efficiency is obviously improved.

As shown in fig. 2 and 3, the photographing and detecting assembly 13 includes a camera 131, a frame 132, and a lead screw module 133, wherein the lead screw module 133 is mounted on the conveying base 21, and the moving direction of the lead screw module 133 is the same as the measuring direction of the standard ruler 12; one end of the frame 132 is connected to the moving end of the screw module 133, the other end of the frame fixes the camera 131, and the camera 131 faces the scale position of the standard ruler 12. During detection, the camera 131 mounted on the frame 132 is conveyed to different positions by utilizing the linear conveying function of the screw rod module 133, and the camera 131 can shoot scale conditions of different positions at the moment for detecting the straightedge 40. And the lead screw module 133 is also secured in terms of the transmission accuracy.

As shown in fig. 2, the calibrating assembly 10 further includes a limiting block 14, the standard ruler 12 is obliquely placed on the calibrating seat 11, and the limiting block 14 is fixedly installed at the bottom of the calibrating seat 11 and limits the standard ruler 12. The limiting block 14 is fixed on the detection seat 11 through the nail body, and the standard ruler 12 is fixed at the position under the limiting of the limiting block 14, so that the detection accuracy is improved.

As shown in fig. 1 to 3, the transmission mechanism 22 includes a first motor 221, a transmission belt 222, and a plurality of pulleys 223, the first motor 221 drives the pulleys 223, and the transmission belt 222 is mounted on the pulleys 223 to rotate along with the pulleys 223. The first motor 221 controls the pulley 223 to rotate, so as to drive the conveyor belt 222 to rotate, place the straight steel rule 40 on the conveyor belt 222, and convey the straight steel rule 40.

As shown in fig. 2 and 4, the guide plate 23 is rotatably connected to the conveying base 21 and is rotatable at least between a position where the scale of the standard scale 12 is aligned and a position where the scale is lower than the scale of the standard scale 12, and when the guide plate 23 is aligned with the scale of the standard scale 12, the guide plate 23 is tilted from the side of the rotation to the side of the standard scale 12. The guide plate 23 is rotatably coupled so that the guide plate 23 can rotate about the coupling position of the conveying base 21. The rotating position of the guide plate 23 can rotate to the position aligned with the scale of the standard ruler 12, as shown in fig. 2, so that the straight steel ruler 40 can smoothly slide to the scale position of the standard ruler 12 for verification; after the calibration is finished, the guide plate 23 is rotated to enable the guide plate 23 to be lower than the scale position of the standard ruler 12, as shown in fig. 4, the guide plate 23 is not in contact with the calibration assembly 10, so that a gap exists, the straight steel ruler 40 can slide down, and when the detection of the straight steel ruler 40 is needed again, the guide plate 23 is rotated to be aligned with the scale position of the standard ruler 12, and the next calibration step is carried out. Therefore, even after the detection is finished, the detection can be taken out without manual operation.

As shown in fig. 1, the conveying assembly 20 further includes a push rod 24 and a telescopic push rod 25, one end of the telescopic push rod 25 is fixed on the conveying seat 21, the other end of the telescopic push rod 25 is hinged to the push rod 24, and the other end of the push rod 24 is hinged to the guide plate 23. The guide plate 23 is driven to rotate by the push rod 24 under the power of the telescopic push rod 25.

Wherein, the push rod 24 is an electric hydraulic push rod. The electric control mode is adopted, the telescopic action can be controlled according to the requirement, the precision of the hydraulic push rod is high, and the movement speed is suitable. Of course, in practice, a cylinder push rod may also be used.

As shown in fig. 3, the guide plate 23 is provided with a second motor 26 and a position adjusting member 27, a cam 28 is connected to a rotating shaft of the second motor 26, and the cam 28 cooperates with the adjusting member to drive the adjusting member to move on the guide plate 23. When the ruler 40 slides onto the guide plate 23 during operation, the second motor 26 is used to drive the cam 28 to control the position of the adjusting member, the adjusting member pushes the ruler 40 to move, and the movement of the second motor 26 is stopped immediately after the zero point of the ruler 40 is captured by the camera 131 and aligned with the zero point of the standard ruler 12.

As shown in fig. 3, the adjusting member includes a pushing block 271, a fixed block 272 and a spring 273, the fixed block 272 is fixed on the guide plate 23, the pushing block 271 is movably connected to the fixed block 272, the spring 273 is installed between the fixed block 272 and the pushing block 271, and the spring 273 presses the pushing block 271 toward the cam 28. The action of the spring 273 makes the pushing block 271 always have a tendency toward the cam 28, so that the pushing block 271 can be controlled to be always attached to the cam 28, and the rotation of the cam 28 can be fed back to the pushing block 271.

The steel ruler calibrating system comprises an electric cabinet 30 and the steel ruler calibrating device, wherein the electric cabinet 30 is electrically connected with the photographic detection assembly 13 and the transmission mechanism. The electric control box 30 is used for accurately controlling the calibration of the whole steel ruler calibration device.

When the drawing description is quoted, the new characteristics are explained; in order to avoid that repeated reference to the drawings results in an insufficiently concise description, the drawings are not referred to one by one in the case of clear description of the already described features.

The above embodiments are intended to be illustrative, and should not be construed as limiting the scope of the invention, and the technical solutions, objects and effects of the present invention are described in full herein.

The above examples are not intended to be exhaustive list of the present invention, and there may be many other embodiments not listed. Any replacement and improvement made on the basis of not violating the conception of the utility model belong to the protection scope of the utility model.

Claims

1. The calibrating device for the straightedge is characterized by comprising a calibrating component and a conveying component, wherein the calibrating component comprises a calibrating seat, a standard ruler and a photographic detection component, the standard ruler and the photographic detection component are both arranged on the calibrating seat, and the detection part of the photographic detection component is opposite to the scale position of the standard ruler;

the conveying assembly comprises a conveying seat, a conveying mechanism and a guide plate, the conveying mechanism is installed on the conveying seat, one end of the guide plate is connected to the conveying seat on one side of the output end of the conveying mechanism, and the other end of the guide plate is opposite to the standard ruler.

2. The straightedge calibrating device according to claim 1, wherein said camera-detecting assembly comprises a camera, a frame and a lead screw module, said lead screw module is mounted on said carriage, and the moving direction of said lead screw module is the same as the measuring direction of said standard ruler;

one end of the rack is connected to the moving end of the lead screw module, the other end of the rack is fixed to the camera, and the camera faces to the scale position of the standard ruler.

3. The straightedge calibrating device according to claim 2, wherein said calibrating assembly further comprises a limiting block, said standard ruler is placed on said calibrating seat in an inclined manner, and said limiting block is fixedly installed at the bottom of said calibrating seat and limits said standard ruler.

4. The straightedge calibrating apparatus according to any one of claims 1 to 3 wherein said conveyor means comprises a first motor, a conveyor belt and a plurality of pulleys, said first motor driving said pulleys, said conveyor belt being mounted on said pulleys for rotation therewith.

5. The straightedge calibrating apparatus according to claim 4, wherein said guide plate is pivotally connected to said carriage and is at least pivotally movable between said standard scale alignment position and a sub-standard scale alignment position, and wherein said guide plate is tilted from a side of rotation to a side of said standard scale when said guide plate is aligned with said standard scale.

6. The straightedge calibrating apparatus of claim 5, wherein said conveyor assembly further comprises a push rod and a telescopic rod, one end of said telescopic rod is fixed on said conveyor base, the other end of said telescopic rod is hinged to said push rod, and the other end of said push rod is hinged to said guide plate.

7. The straightedge calibrating apparatus of claim 6, wherein said push rod is an electro-hydraulic push rod.

8. The straightedge calibrating apparatus of claim 4, wherein the guide plate is provided with a second motor and a position adjusting member, the second motor is provided with a cam on a rotating shaft, and the cam is matched with the adjusting member to drive the adjusting member to move on the guide plate.

9. The straightedge calibrating apparatus of claim 8, wherein said adjusting means comprises a pushing block, a fixed block and a spring, said fixed block is fixed to said guide plate, said pushing block is movably connected to said fixed block, said spring is mounted between said fixed block and said pushing block, and said spring presses said pushing block toward said cam.

10. The straightedge calibrating system is characterized by comprising an electric cabinet and the straightedge calibrating device as claimed in any one of claims 1 to 9, wherein the electric cabinet is electrically connected with the photographic detection assembly and the transmission mechanism.