CN217738167U

CN217738167U - Electronic clearance ruler

Info

Publication number: CN217738167U
Application number: CN202221854368.0U
Authority: CN
Inventors: 谭闯
Original assignee: Zhangjiagang Great Wall Motor Research and Development Co Ltd
Current assignee: Zhangjiagang Great Wall Motor Research and Development Co Ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-11-04
Anticipated expiration: 2032-07-05

Abstract

The utility model provides an electronic clearance chi, include the blade that sets up from root to tip width dimension taper, still including the sensor of locating the blade lateral part and the signal processing unit who is connected with the sensor. The sensor extends from the root to the end, and the entrance of the measured gap can be pressed against different positions on the sensor along with the different depths of the ruler body inserted into the measured gap; the sensor sends a signal corresponding to the pressed position to the signal processing unit, and the signal processing unit is used for converting the signal into a width numerical value of the measured gap and displaying the width numerical value. The utility model discloses an electron clearance chi, during the blade inserts the clearance of being surveyed, and on the blade and when being surveyed the clearance entrance with the width phase position arrival always in survey clearance, the sensor can the entrance support to press and send the signal that corresponds to show after being converted by the signal processing unit, supply the measurer to read, thereby avoid the artificial observation error who reads the scale indicating value, do benefit to the promotion and carry out measuring accuracy to the fit-up gap.

Description

Electronic clearance ruler

Technical Field

The utility model relates to an automobile inspection technical field, in particular to electron clearance chi.

Background

In order to ensure the assembling quality of the automobile body, the gap between adjacent parts on the automobile body, such as the outer panel of the back door and the upper body of the rear bumper, needs to be controlled within a required range.

For such a detection of the assembly gap, an automobile gap measuring ruler is generally used to measure the gap value between the mating parts of the automobile. The measurement and the reading of the measured value are performed by inserting a gap measuring ruler into the gap of the mating parts.

The existing automobile clearance measuring scale is a pure mechanical device basically, the measured data is the data read by human eyes of measurers, the reading modes of different measurers are different, the observing positions are inconsistent, the places detected by different measurers are slightly different, and the read data inevitably has certain deviation, so that the judgment of later data can be influenced.

In some existing improvement schemes, the ruler body of the clearance measuring ruler is divided into a plurality of sections, different colors are coated, the colors of the sections are bright, and the sections are easy to distinguish, so that the probability of misreading data is reduced. However, this method still relies on human eye observation of the measurer, and the deviation of the reading value is still large, which cannot really achieve the purpose of improving the measurement accuracy.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an electron clearance chi to do benefit to the promotion and carry out measuring accuracy to the fit-up gap.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

an electronic clearance ruler comprises a ruler body, a ruler body and a clearance adjusting device, wherein the width of the ruler body is gradually reduced from the root to the end; the electronic clearance gauge also comprises a sensor arranged on the side part of the gauge body and a signal processing unit connected with the sensor; the sensor extends from the root part to the end part, and the entrance of the measured gap can be pressed against different positions on the sensor along with different depths of the ruler body inserted into the measured gap; the sensor sends a signal corresponding to the pressed position to the signal processing unit, and the signal processing unit is used for converting the signal into a width numerical value of the measured gap and displaying the width numerical value.

Further, the sensor adopts a strip-shaped pressure sensor.

Furthermore, the strip-shaped pressure sensors are respectively arranged on two sides of the ruler body.

Furthermore, a mounting groove is formed in the side portion of the ruler body, and the strip-shaped pressure sensor is arranged in the mounting groove.

Furthermore, scales are marked on a panel of the ruler body.

Furthermore, the signal processing unit comprises a shell, and a controller, an electronic display screen and a battery which are arranged in the shell; the electronic display screen, the battery and the sensor are all connected with the controller.

Furthermore, a power switch and/or a zero calibration switch connected with the controller are/is arranged on the shell.

Furthermore, a cover plate is arranged on the shell and used for replacing the battery in the shell.

Further, the electronic display screen is arranged on the same side of the shell as the panel of the ruler body; the cover plate is arranged on one side of the shell, which is back to the electronic display screen.

Further, the shell is fixedly arranged at the root of the ruler body.

Compared with the prior art, the utility model discloses following advantage has:

the electronic clearance ruler of the utility model, through arranging the sensor which is fully distributed on the whole length of the ruler body at the side part of the ruler body, when the ruler body is inserted into the measured clearance and the position on the ruler body which is consistent with the width of the measured clearance reaches the entrance of the measured clearance, the sensor can be pressed by the entrance of the measured clearance, thereby leading the sensor to send signals; the signal sent by the sensor corresponds to the pressed position, and the corresponding signal can be converted into the width value of the measured gap by utilizing the signal data conversion function in the signal processing unit and is directly displayed for a measurer to read; under this measurement principle, can avoid the artificial observation error who reads the scale indicating value, be favorable to promoting the measurement accuracy who carries out the measurement to the fit-up gap.

The sensor adopts a strip-shaped pressure sensor, so that the arrangement requirement on the ruler body and the measurement condition requirement are met, different positions on the strip-shaped pressure sensor are pressed, and the strip-shaped pressure sensor can send out different signals; according to the proportional relation of the width size of the ruler body gradually changing on the length of the ruler body, the length position of the ruler body and the width value corresponding to the length position can be converted by the signal processing unit according to the pressed position on the strip-shaped pressure sensor, and therefore the accurate width value of the measured gap is obtained.

In addition, scales are marked on the panel of the ruler body at the same time, so that the electronic clearance ruler can be used as a common clearance ruler at the same time, and a measured value is directly read through the scale marks and scale values on the panel; furthermore, the read measurement value and the measurement value shown by the signal processing unit can be verified mutually, which is beneficial to further improving the accuracy and the rigor of the measurement.

Drawings

The accompanying drawings, which form a part of the present disclosure, are provided to provide a further understanding of the present disclosure, and the exemplary embodiments and descriptions thereof are provided to explain the present disclosure, wherein the related terms in the front, back, up, down, and the like are only used to represent relative positional relationships, and do not constitute an undue limitation of the present disclosure. In the drawings:

fig. 1 is an isometric view of an electronic clearance gauge according to an embodiment of the present invention on a front side;

fig. 2 is an isometric view of an electronic clearance gauge according to an embodiment of the present invention on a back side; (ii) a

Fig. 3 is an exploded view of an electronic gap ruler according to an embodiment of the present invention;

fig. 4 is a schematic view of an electronic clearance gauge according to an embodiment of the present invention in a measuring state;

description of the reference numerals:

1. a signal processing unit; 10. a housing; 11. fixing the bolt; 12. a cover plate; 13. an electronic display screen; 14. a power switch; 15. a zero calibration switch; 16. a battery;

20. a strip-shaped pressure sensor; 21. a wire harness joint;

3. a ruler body; 30. an end portion; 31. mounting grooves; 32. a panel; 33. calibration; 330. scale marks; 331. a scale value; 34. and (4) root.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.

In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc. appear, they are based on the orientation or positional relationship shown in the drawings, 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 specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless expressly limited otherwise. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment relates to an electronic clearance gauge, which is beneficial to improving the measurement accuracy of measuring an assembly clearance; one exemplary configuration of which is shown in fig. 1.

In general, the electronic clearance gauge includes a body 3 having a width dimension gradually decreasing from a root 34 to an end 30, a sensor provided at a side of the body 3, and a signal processing unit 1 connected to the sensor. Wherein the sensor extends from the root 34 to the tip 30; along with the different depths of the ruler body 3 inserted into the measured gap, the entrance of the measured gap can be pressed against different positions on the sensor; and then the trigger sensor sends a signal corresponding to the pressed position to the signal processing unit 1, and the signal processing unit 1 is used for converting the signal into a width numerical value of the measured gap and displaying the width numerical value.

It should be noted that the above-mentioned sensor may adopt a displacement sensor for measuring the distance from the pressed position of the sensor to the end portion thereof, and after the measured distance signal is transmitted to the signal processing unit 1, based on the fact that the whole ruler body 3 is of a wedge-shaped and other standardized width gradually-changing structure, the width values at different length positions thereof may be calculated according to the length-width ratio, so that the width of the ruler body 3 at the inlet of the measured gap may be converted from the signal of the sensor acquired by the signal processing unit 1, and the width size of the measured gap may be further obtained.

In addition, the sensor may be of other types that can measure corresponding signals at different locations on the sensor. In the present embodiment, the sensor employs a strip-shaped pressure sensor 20. For example, an SF15 series strip flexible film pressure sensor manufactured by hanwei science and technology group ltd may be used. The strip-shaped pressure sensor 20 is adopted, the arrangement requirement and the measurement condition requirement on the ruler body 3 are met, different positions on the strip-shaped pressure sensor 20 are pressed, and the strip-shaped pressure sensor 20 can send out different signals; according to the proportional relation of the width size of the ruler body 3 gradually changing on the length of the ruler body, the length position of the ruler body 3 and the width value corresponding to the position can be converted by the signal processing unit 1 according to the pressed position of the strip-shaped pressure sensor 20, and therefore the accurate width value of the measured gap is obtained.

Of course, one strip-shaped pressure sensor 20 can be used, and is arranged on only one side of the blade 3. In the present embodiment, as shown in fig. 2 in combination with fig. 3, two strip pressure sensors 20 are provided, and two strip pressure sensors 20 are respectively provided on both sides of the blade 3. In addition, for the convenience of installation, the side part of the ruler body 3 is provided with an installation groove 31, and the strip-shaped pressure sensor 20 is arranged in the installation groove 31. All set up a bar pressure sensor 20 in 3 both sides of blade, can insert the measurement in-process once, obtain two measured values, realized the effect of retest check, be favorable to reducing the measuring contingency, the mode such as average can obtain more accurate measured value. The ruler body 3 is provided with the mounting groove 31, so that the mounting firmness of the strip-shaped pressure sensor 20 on the ruler body 3 can be improved.

As shown in fig. 3, in the present embodiment, the signal processing unit 1 includes a housing 10, and a controller, an electronic display 13, and a battery 16 provided in the housing 10. Wherein, the electronic display 13, the battery 16 and the sensor are all connected with the controller. Preferably, the shell 10 is fixedly arranged at the root 34 of the ruler body 3; the strip-shaped pressure sensor 20 is arranged at the root 34 of the ruler body 3, so that the whole electronic clearance ruler can be operated by holding the shell 10; but the wiring of the sensor is also conveniently led directly into the housing 10 from the top of the sensor.

The signal processing unit 1 is provided with a housing 10 for facilitating the arrangement and protection of the electronic display 13, the battery 16, the controller, and the like. The controller can be realized by adopting the existing ADC acquisition chip (such as a chip CS1270 chip), a calculation chip or a singlechip which is matched with the ADC acquisition chip and used for numerical value conversion, and the like. Based on the aspect ratio of the blade 3, those skilled in the art can convert and convert the signal detected by the bar-shaped pressure sensor 20 into the width value of the measured gap by the necessary arrangement of the signal processing unit 1.

The housing 10 may be provided with a power switch 14 and a zero calibration switch 15 connected to the controller, or may be provided with only one of them. By using the functional port on the controller, the power switch 14, the zero calibration switch 15 and other functional switches are connected, so that the electronic clearance ruler can be conveniently switched on and off and subjected to zero calibration and other operations, and the practicability of the electronic clearance ruler is improved.

Meanwhile, the housing 10 is further provided with a cover plate 12 for replacing the battery 16 in the housing 10, and the cover plate 12 can be fastened to the housing 10 by using the fixing bolt 11. A cover 12 is provided on the housing 10 to facilitate removal and replacement of the battery 16. Based on the arrangement condition of the strip-shaped pressure sensor 20 and the shell 10, a threading hole can be formed in the bottom of the shell 10, the wire harness connector 21 at the top of the strip-shaped pressure sensor 20 is connected, a connected circuit is led into the shell 10 through the threading hole, and the connected circuit is connected with a corresponding terminal of an ADC (analog to digital converter) acquisition chip in the controller.

As shown in fig. 1 and fig. 4, a front surface of the ruler body 3 is provided with a panel 32, and in this embodiment, the panel 32 is marked with a scale 33.

The panel 32 of the ruler body 3 is marked with scales 33, so that the electronic clearance ruler can be used as a common clearance ruler at the same time, and a measured value is directly read through the scale marks 330 and scale values 331 on the panel 32; moreover, the read measurement value and the measurement value shown by the electronic display 13 on the signal processing unit 1 can be verified mutually, which is beneficial to further improving the accuracy and the rigor of the measurement.

Based on the above arrangement, the electronic display 13 is preferably arranged on the same side of the casing 10 as the face plate 32 of the blade 3; the cover 12 is disposed on the side of the housing 10 facing away from the electronic display 13. The electronic display screen 13 and the cover plate 12 are respectively arranged on the front side and the rear side of the shell 10, so that the indication value on the electronic display screen 13 can be read conveniently, and the electronic clearance ruler is more attractive and practical as a whole.

In the using process, as shown in fig. 4, by inserting the ruler body 3 into the gap to be measured between the outer plate of the back door of the automobile and the upper body of the rear bumper, for example, when two strip-shaped pressure sensors 20 attached to the ruler body 3 are clamped at the entrance of the gap to be measured, the width of the position where the entrance is pressed against the ruler body 3 is the gap size of the gap to be measured. Two bar pressure sensor 20 can receive pressure with the testee contact of being surveyed the clearance both sides, and in this contact area, bar pressure sensor 20 can produce corresponding signal of telecommunication, connects 21 transmission to carry out signal conversion for signal processing unit 1 through the pencil, and the back is accomplished in the conversion, and signal processing unit 1 can appear the clearance width numerical value of being surveyed the clearance on electronic display 13. For example, as shown in fig. 4, if the scale value 331 at the scale mark 330 pointed by the contact area of the strip pressure sensor 20 and the object to be measured on both sides of the measured gap is 14.50mm, 14.50mm is displayed on the electronic display 13 at the same time.

The strip pressure sensor 20 is contacted with the measured object gap measurement part, the strip pressure sensor 20 generates corresponding electric signals in the small area, the electric signals are transmitted to the signal processing unit 1, and measured values are displayed on the electronic display screen 13 through signal conversion. The measurement result is more accurate, and the data observation is visual and clear; the influence of factors of a measurer, such as different measuring points, inconsistent observation points, deviation of reading and the like, is eliminated, and the reliability of measured data is ensured.

In summary, in the electronic clearance gauge of the present embodiment, the sensor is disposed on the side of the body 3 and fully distributed over the entire length of the body 3, and when the body 3 is inserted into the gap to be measured and the position on the body 3 corresponding to the width of the gap to be measured reaches the entrance of the gap to be measured, the sensor is pressed by the entrance of the gap to be measured, so that the sensor sends a signal; the signal sent by the sensor corresponds to the pressed position, and the corresponding signal can be converted into the width value of the measured gap by utilizing the signal data conversion function in the signal processing unit 1 and is directly displayed for a measurer to read; under this measurement principle, can avoid the artificial observation error who reads the scale indicating value, be favorable to promoting and carry out measuring accuracy who measures to the fit-up gap.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electronic clearance ruler comprises a ruler body (3) with the width size gradually reduced from a root part (34) to an end part (30); the method is characterized in that:

the electronic clearance gauge also comprises a sensor arranged on the side part of the gauge body (3) and a signal processing unit (1) connected with the sensor;

the sensor extends from the root (34) to the end (30), and the entrance of the measured gap can be pressed against different positions on the sensor along with the different depths of the ruler body (3) inserted into the measured gap;

the sensor sends a signal corresponding to the pressed position to the signal processing unit (1), and the signal processing unit (1) is used for converting the signal into a width numerical value of the measured gap and displaying the width numerical value.

2. The electronic clearance ruler of claim 1, wherein:

the sensor is a strip pressure sensor (20).

3. The electronic clearance ruler of claim 2, wherein:

the strip-shaped pressure sensors (20) are respectively arranged on two sides of the ruler body (3).

4. The electronic gap ruler of claim 2, wherein:

the side part of the ruler body (3) is provided with a mounting groove (31), and the strip-shaped pressure sensor (20) is arranged in the mounting groove (31).

5. The electronic clearance ruler of claim 1, wherein:

scales (33) are marked on a panel (32) of the ruler body (3).

6. The electronic gap ruler of any one of claims 1 to 5, wherein:

the signal processing unit (1) comprises a shell (10), and a controller, an electronic display screen (13) and a battery (16) which are arranged in the shell (10);

the electronic display screen (13), the battery (16) and the sensor are all connected with the controller.

7. The electronic clearance ruler of claim 6, wherein:

and a power switch (14) and/or a zero calibration switch (15) connected with the controller are/is arranged on the shell (10).

8. The electronic clearance ruler of claim 6, wherein:

the battery pack is characterized in that a cover plate (12) is arranged on the shell (10), and the cover plate (12) is used for replacing the battery (16) in the shell (10).

9. The electronic clearance ruler of claim 8, wherein:

the electronic display screen (13) is arranged on the same side of the shell (10) as the panel (32) of the ruler body (3); the cover plate (12) is arranged on one side of the shell (10) back to the electronic display screen (13).

10. The electronic clearance ruler of claim 6, wherein:

the shell (10) is fixedly arranged at the root part (34) of the ruler body (3).