CN212378766U - High-precision automatic level ruler calibrating device - Google Patents
High-precision automatic level ruler calibrating device Download PDFInfo
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- CN212378766U CN212378766U CN202021369700.5U CN202021369700U CN212378766U CN 212378766 U CN212378766 U CN 212378766U CN 202021369700 U CN202021369700 U CN 202021369700U CN 212378766 U CN212378766 U CN 212378766U
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- 238000012797 qualification Methods 0.000 description 3
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Abstract
The utility model discloses an automatic level bar calibrating device of high accuracy, include: a horizontal stand and locate on the horizontal stand: level bar mount, line indicating value calibration portion, division value calibration portion and control division, line indicating value calibration portion includes: the system comprises a grating ruler, a first camera assembly and a first driving device; the division value calibration unit includes: the calibration device comprises a common division value calibration component and a high-precision division value calibration component; the common division value calibration assembly comprises: the second camera assembly, the second driving device, the angle displacement device and the digital display meter; the high-precision degree value calibration component comprises: a third camera assembly, a third drive device and a circular grating assembly; the control part controls the first to third driving devices to enable the first camera assembly, the angle displacement device and the circular grating assembly to perform accurate displacement. The utility model discloses an integrated design realizes on same machine to line indicating value, ordinary and high accuracy degree value calibration, has realized the automation mechanized operation, has improved the precision of calibration.
Description
Technical Field
The utility model relates to a level bar calibration technical field especially relates to an automatic level bar calibrating device of high accuracy.
Background
The level bar is a measuring instrument which directly displays angular displacement by a level bubble by utilizing the principle of liquid level and measures the deviation degree of a measured surface relative to a horizontal position, a vertical position and an inclined position. Line scale error and division error of a level are important items for level calibration. The level ruler calibrator is a precise instrument for measuring small angles and is mainly used for calibrating errors of values of frame-type level rulers and strip-type level rulers. The existing level bar calibrator has low precision, is complicated to operate in the calibration process, and cannot completely meet the requirement of efficient production calibration.
Therefore, the development of a high-precision automatic calibration device to meet the requirements of high calibration precision and automation is a technical problem which needs to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem, the utility model provides an automatic level bar calibrating device of high accuracy.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a high precision automatic level calibration apparatus comprising: a horizontal stand with locate on the horizontal stand:
the level bar fixing frame is used for fixing the level bar;
the line mark indicating value calibration part comprises: the first driving device drives the first camera assembly to move to each verification point to shoot the level ruler;
the division value calibration unit includes: ordinary index value calibration subassembly and high accuracy index value calibration subassembly, ordinary index value calibration subassembly includes: the second camera assembly is movably mounted on the horizontal ruler fixing frame, the angle displacement device is connected to one end of the horizontal ruler fixing frame, the second driving device drives the angle displacement device to adjust the angle of one end of the horizontal ruler fixing frame, and the digital display meter displays the change angle of the horizontal ruler fixing frame; the high-precision degree value calibration component comprises: the circular grating camera comprises a third camera component, a third driving device and a circular grating component, wherein the third driving device drives the circular grating component to rotate, and the circular grating component records a rotation angle; the second camera assembly and the third camera assembly shoot bubbles of the level;
and the control part is used for controlling the first driving device, the second driving device and the third driving device so as to enable the first camera assembly, the angle displacement device and the circular grating assembly to carry out accurate displacement.
Furthermore, the first driving device comprises a sliding shaft arranged on the horizontal table, two first sliding rails and a driving piece arranged at one end of the horizontal table, the power output end of the driving piece is connected to the sliding shaft, and the high-precision grating ruler is arranged in parallel with the two first sliding rails and the sliding shaft.
Further, the first camera assembly includes: the camera comprises a first camera and a frame, wherein the first camera is movably connected to the frame, the bottom of the frame is inserted into the sliding shaft, two sliding blocks are further arranged at the bottom of the frame, and each sliding block is nested on each first sliding rail and slides along the first sliding rail.
Furthermore, an upper adjusting part, a lower adjusting part and a front and back adjusting part are arranged on the rack, the first camera is movably connected to the front and back adjusting part, the front and back adjusting part is fixed on the upper and lower adjusting part, the front and back adjusting part moves back and forth, and the upper and lower adjusting part moves up and down.
Furthermore, the first camera is fixed on a sliding frame, and the sliding frame is sleeved on the front and rear adjusting part and is matched with a second sliding rail on the front and rear adjusting part to realize front and rear sliding.
Furthermore, a sliding groove is formed in the upper and lower adjusting portion, a sliding block is correspondingly arranged on the front and rear adjusting portion, and the sliding block is embedded in the sliding groove and slides up and down along the sliding groove.
Further, the front and back adjusting portion is provided with a first motor assembly, the upper and lower adjusting portion is provided with a second motor assembly, a power output end of the first motor assembly is connected to the sliding frame, and a power output end of the second motor assembly is connected to the front and back adjusting portion.
Further, the angular displacement device includes: the horizontal part is fixedly connected with the horizontal ruler fixing frame; one end of the first movable part is movably connected to the bottom surface of the horizontal part, and the other end of the first movable part is movably connected to the base; one end of the second movable piece is movably connected to the bottom surface of the horizontal portion, the other end of the second movable piece is connected to the power output end of the second driving device, and the first movable piece is movably connected with the second movable piece through a shaft.
Further, the circular grating assembly includes: the third camera component is fixed at the top of the circular grating, and a power output end of the third driving device is connected with the circular grating.
Further, the first driving device and the second driving device are both linear stepping motors, and the third driving device is a stepping motor.
According to the above technical scheme, the utility model discloses an automatic level bar calibrating device of high accuracy through setting up line indicating value calibration portion and division value calibration portion, realizes the calibration to the high accuracy line indicating value error of level bar and division error, and is equipped with the control division, control first to third drive arrangement, with the drive first camera subassembly angle displacement device with the circular grating subassembly carries out accurate displacement, has realized the automation mechanized operation, has improved the precision of calibration.
Drawings
Fig. 1 is a front view of the high-precision automatic level calibrating device of the present invention.
Fig. 2 is the utility model relates to a high accuracy automatic level bar calibrating device's top view.
Fig. 3 is a rear view of the high-precision automatic level calibrating device of the present invention.
Fig. 4 is a perspective view of the high-precision automatic level calibrating device of the present invention.
Fig. 5 is the utility model relates to an enlarger of the angle displacement device of the automatic level bar calibrating device of high accuracy.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-5, the present invention provides a high precision automatic level calibrating device, comprising: a level table 10, a line indication value calibration part 20, a division value calibration part 30, a control part (not shown) and a level ruler fixing frame 60 which are arranged on the level table 10. The division value calibration unit 30 includes: a general index value calibration component 31 and a high precision index value calibration component 32. When the level ruler 70 is calibrated by line indication and common division value, the level ruler 70 is fixed on the level ruler fixing frame 60 to realize calibration. The scale value calibration part 20 precisely calibrates the scale value of the level bar 70, the normal division value calibration unit 31 calibrates the division value of the normal level bar, and the high-precision division value calibration unit 32 calibrates the division value of the high-precision level bar. The utility model discloses an automatic level bar calibrating device integrates three kinds of calibrating device in an organic whole to be equipped with controller and drive arrangement and carry out the accurate positioning to camera and angle displacement device, degree of automation is high and has improved the precision of calibration greatly. Specifically, the method comprises the following steps:
the line marking calibration unit 20 includes: the first driving device 23 drives the first camera assembly 22 to move to a required position to shoot each calibration point of the horizontal ruler 70, the computer comprehensively calculates the information of the lines to be detected according to calibration parameter information and actual shooting scale information, the computer performs real-time image processing to identify the physical coordinate position of the lines, the position is compared with the grating ruler 21 to calculate errors, and finally, the qualification judgment is performed according to the calibration rules. Preferably, the grating ruler 21 is a high-precision grating ruler, the measuring range of the grating ruler is 0-1000mm, the measuring range is accurate to 0.001mm, and the requirement for high-precision calibration of the level ruler is met.
Further, the first driving device 23 includes a sliding shaft 231 disposed on the horizontal stage 10, two first sliding rails 232, and a driving element 233 disposed at one end of the horizontal stage 10, a power output end of the driving element 233 is connected to the sliding shaft 231, and the high-precision grating scale 21 is disposed in parallel with the two first sliding rails 232 and the sliding shaft 231. The first camera assembly 22 includes: the camera device comprises a first camera 221 and a frame 222, wherein the first camera 221 is movably connected to the frame 222, the bottom of the frame 222 is inserted into the sliding shaft 231, two sliding blocks (not shown) are further arranged at the bottom of the frame 222, through holes are formed in the sliding blocks, and each sliding block is embedded in each first sliding rail 232 through the through hole and slides along the first sliding rail 232. With this arrangement, the frame 222 can stably slide back and forth along the first slide rail 232, and the shooting position of the first camera 221 mounted thereon can be adjusted.
Further, an up-down adjusting portion 223 and a front-back adjusting portion 224 are disposed on the frame 222, the first camera 221 is movably connected to the front-back adjusting portion 224, the front-back adjusting portion 224 is slidably connected to the up-down adjusting portion 223, the front-back adjusting portion 224 moves back and forth, and the up-down adjusting portion 223 moves up and down. The first camera 221 is fixed on a sliding frame 225, and the sliding frame 225 is sleeved on the front-back adjusting portion 224 and is matched with a second sliding rail (not shown) on the front-back adjusting portion 224 to realize front-back sliding. The up-down adjusting portion 223 is provided with a sliding groove (not shown), and the front-back adjusting portion 223 is correspondingly provided with a sliding block (not shown) which is embedded in the sliding groove and slides up and down along the sliding groove. The front and rear adjusting portion 224 is provided with a first motor assembly 226, the up and down adjusting portion 223 is provided with a second motor assembly 227, the power output end of the first motor assembly 226 is connected to the sliding frame 225 for driving the first camera 221 to slide back and forth, the power output end of the second motor assembly 227 is connected to the sliding block of the front and rear adjusting portion 223 for driving the front and rear adjusting portion 224 to slide up and down, thereby driving the first camera 221 to slide up and down. The first motor assembly 226 and the second motor assembly 227 are linear stepping motors and are electrically connected to the controller, and the controller controls the movement distance of the first motor assembly 226 and the second motor assembly 227 so as to realize accurate positioning of the first camera 221.
The general index value calibration assembly 31 includes: the second camera component 311 is fixed on an adjustable clamping piece 315, the adjustable clamping piece 315 is movably connected to the level bar fixing frame 60, and the clamping piece 315 can slide left and right along the level bar fixing frame 60 so as to adjust the position of the second camera component 311 and meet the requirements of shooting at different positions. The angle displacement device 313 is connected to one end of the level bar fixing frame 60, the second driving device 322 drives the angle displacement device 313 to ascend or descend one end of the level bar fixing frame 60 to realize angle adjustment, and the digital display meter 314 displays the change angle of the level bar fixing frame 60 so as to meet the calibration requirement on the division value of the level bar. Further, as shown in fig. 5, the angular displacement device 313 includes: the horizontal part 300 is fixedly connected with the level ruler fixing frame 60; one end of the first movable member 302 is movably connected to the bottom surface of the horizontal portion 300, and the other end is movably connected to the base 301; one end of the second movable member 303 is movably connected to the bottom surface of the horizontal portion 300, the other end of the second movable member 303 is connected to the power output end of the second driving device 312, and the first movable member 302 and the second movable member 303 are movably connected through a shaft. The first movable piece 302 and the second movable piece 303 form an active lifting mechanism, when the second driving device 312 pushes the other end of the second movable piece 303 to the left, the first movable piece 302 and the second movable piece 303 approach to the middle to jack up the horizontal part 300, that is, one end of the level fixing rack 60 is lifted up; when the second driving device 322 pulls the other end of the second movable member 303 to the right, the first movable member 302 and the second movable member 303 are separated to pull the horizontal portion 300 down, i.e. pull one end of the level bar fixing frame 60 down, thereby achieving the angle adjustment of the level bar 70 fixed on the level table fixing frame 60 to calibrate the division value thereof. The second driving device 312 is a linear stepping motor, and the power output end of the second driving device generates linear displacement. The division value is a parameter representing the height difference of two end points of the level, and when the two end points of the level have the height difference, the air bubbles on the level generate a difference on a scale. During calibration, level 70 is manually fixed to level holder 60, and first camera 221 is adjusted to be aligned with the level bubble on level 70. The measurement of the division value is clicked on a computer, the computer controls the angle displacement device 313 through a controller, and the digital display table 314 measures the height change of one end of the level bar fixing frame 60 to generate a specified standard angle. The second camera assembly 311 collects the bubble image of the corresponding calibration point, the computer calculates the index value information of the level according to the calibration parameter information and the actual shooting scale information, compares the index value information with the standard angle, calculates the error, and finally performs qualification judgment according to the calibration rule.
Further, the high-precision degree value calibration component 32 includes: the high-precision water level gauge comprises a third camera assembly 321, a third driving device 322 and a circular grating assembly 323, wherein the third driving device 322 drives the circular grating assembly 323 to rotate, the circular grating assembly 323 records a rotation angle, and the third camera assembly 321 shoots bubbles of the high-precision water level gauge 80. As shown in fig. 4, the circular grating assembly 323 includes: the third camera component 321 is fixed on the top of the circular grating 400, and the lens of the third camera component faces the horizontal ruler below the circular grating and synchronously rotates along with the circular grating 400. The power output end of the third driving device 322 is connected to the circular grating 400, so that the circular grating 400 axially rotates to meet the requirement of calibrating the level. Preferably, the circular grating is a high-precision circular grating which can be precise to 0.001mm, and the third driving device 322 is a stepping motor. In calibration, the high-precision level 80 to be calibrated is manually fixed on the clamping part 401 of the circular grating assembly, and then the third camera assembly 321 is adjusted and aligned on the horizontal bubble on the high-precision level 80 or the display panel of the electronic level. The high-precision degree division value measurement is clicked on a computer, the computer controls a third driving device 322 through a controller to enable a high-precision circular grating to rotate, the high-precision circular grating records a rotation angle, a third camera component 321 shoots and collects corresponding bubble images or display numerical values, the bubble division value or the displayed numerical value information is comprehensively calculated through the computer according to calibration parameter information and actual shooting scale information, the bubble division value or the displayed numerical value information is compared with the angle recorded by the high-precision circular grating, an error is calculated, and finally, the qualification judgment is carried out according to a verification rule.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the drawings of the present invention, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
To sum up, the utility model provides an automatic level bar calibrating device of high accuracy, through set up line scale indicating value calibration portion and division value calibration portion simultaneously on the horizontal table, division value calibration portion is equipped with ordinary division value calibration subassembly and high accuracy division value calibration subassembly again respectively, can carry out line scale indicating value calibration, ordinary division value calibration and the calibration of high accuracy to the level bar to be equipped with the control part, it is right first to third drive arrangement realizes accurate control, thereby makes first camera subassembly angle displacement device with the circle grating subassembly carries out accurate displacement, has realized automation mechanized operation, has improved the precision of calibration and is worth wideling popularize and use.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A high precision automatic level calibrating device, comprising: a horizontal stand with locate on the horizontal stand:
the level bar fixing frame is used for fixing the level bar;
the line mark indicating value calibration part comprises: the first driving device drives the first camera assembly to move to each verification point to shoot the level ruler;
the division value calibration unit includes: ordinary index value calibration subassembly and high accuracy index value calibration subassembly, ordinary index value calibration subassembly includes: the second camera assembly is movably mounted on the horizontal ruler fixing frame, the angle displacement device is connected to one end of the horizontal ruler fixing frame, the second driving device drives the angle displacement device to adjust the angle of one end of the horizontal ruler fixing frame, and the digital display meter displays the change angle of the horizontal ruler fixing frame; the high-precision degree value calibration component comprises: the circular grating camera comprises a third camera component, a third driving device and a circular grating component, wherein the third driving device drives the circular grating component to rotate, and the circular grating component records a rotation angle; the second camera assembly and the third camera assembly shoot bubbles of the level;
and the control part is used for controlling the first driving device, the second driving device and the third driving device so as to enable the first camera assembly, the angle displacement device and the circular grating assembly to carry out accurate displacement.
2. The automatic high precision level bar calibrating device according to claim 1, wherein said first driving device comprises a sliding shaft disposed on said level table, two first sliding rails and a driving member disposed at one end of said level table, a power output end of said driving member is connected to said sliding shaft, and said high precision grating scale is disposed in parallel with said two first sliding rails and said sliding shaft.
3. A high accuracy automatic level calibration apparatus according to claim 2, wherein said first camera assembly comprises: the camera comprises a first camera and a frame, wherein the first camera is movably connected to the frame, the bottom of the frame is inserted into the sliding shaft, two sliding blocks are further arranged at the bottom of the frame, and each sliding block is nested on each first sliding rail and slides along the first sliding rail.
4. A high accuracy automatic level bar calibrating device according to claim 3, wherein said frame is provided with an up-down adjusting portion and a front-back adjusting portion, said first camera is movably connected to said front-back adjusting portion, said front-back adjusting portion is fixed to said up-down adjusting portion, said front-back adjusting portion moves back and forth, and said up-down adjusting portion moves up and down.
5. A high accuracy automatic level bar calibrating device according to claim 4 wherein said first camera is mounted on a carriage which is mounted on said fore-aft adjustable section and which slides fore-aft in cooperation with a second slide rail on said fore-aft adjustable section.
6. A high accuracy automatic level ruler calibrating device according to claim 5, wherein said up-down adjusting part is provided with a sliding groove, and said front-back adjusting part is correspondingly provided with a sliding block, said sliding block is embedded in said sliding groove and slides up and down along said sliding groove.
7. A high accuracy automatic level bar calibrating device according to claim 6, wherein said front and rear adjusting portion is provided with a first motor assembly, said up and down adjusting portion is provided with a second motor assembly, a power output of said first motor assembly is connected to said carriage, and a power output of said second motor assembly is connected to said slide block.
8. A high accuracy automatic level calibration apparatus according to claim 1, wherein said angular displacement means comprises: the horizontal part is fixedly connected with the horizontal ruler fixing frame; one end of the first movable part is movably connected to the bottom surface of the horizontal part, and the other end of the first movable part is movably connected to the base; one end of the second movable piece is movably connected to the bottom surface of the horizontal portion, the other end of the second movable piece is connected to the power output end of the second driving device, and the first movable piece is movably connected with the second movable piece through a shaft.
9. A high precision automatic level calibration apparatus according to claim 8, wherein said circular grating assembly comprises: the third camera component is fixed at the top of the circular grating, and a power output end of the third driving device is connected with the circular grating.
10. A high accuracy automatic level calibration apparatus according to claim 1, wherein said first drive means and said second drive means are linear stepper motors and said third drive means is a stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021369700.5U CN212378766U (en) | 2020-07-09 | 2020-07-09 | High-precision automatic level ruler calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021369700.5U CN212378766U (en) | 2020-07-09 | 2020-07-09 | High-precision automatic level ruler calibrating device |
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| Publication Number | Publication Date |
|---|---|
| CN212378766U true CN212378766U (en) | 2021-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021369700.5U Expired - Fee Related CN212378766U (en) | 2020-07-09 | 2020-07-09 | High-precision automatic level ruler calibrating device |
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| Country | Link |
|---|---|
| CN (1) | CN212378766U (en) |
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2020
- 2020-07-09 CN CN202021369700.5U patent/CN212378766U/en not_active Expired - Fee Related
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Granted publication date: 20210119 |