CN214666494U

CN214666494U - Cabin aperture detects instrument

Info

Publication number: CN214666494U
Application number: CN202023247638.5U
Authority: CN
Inventors: 朱彬; 高钦杰; 陈晓链; 曾平
Original assignee: GAC Motor Co Ltd
Current assignee: GAC Motor Co Ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-11-09
Anticipated expiration: 2030-12-28

Abstract

The utility model relates to the technical field of automobile auxiliary parts, more specifically relates to a cabin aperture detection tool, detection tool includes slide caliper rule body, fixed position portion, the activity measuring part that is equipped with the scale, fixed position portion and slide caliper rule body fixed connection, activity measuring part and slide caliper rule body swing joint, the distance value between the fixed position portion of activity measuring part distance is 0 ~ 1600 mm; the detection tool is further provided with a movable zero setting part used for providing a secondary zero setting point, and the movable zero setting part is movably connected with the caliper body. The utility model can realize wide-range measurement by setting; and the movable measuring part and the caliper body are movably connected, so that the measuring stroke can be adjusted according to the requirement. Through the detection instrument still is equipped with the movable zero setting portion that is used for providing the secondary zero setting point, movable zero setting portion and slide caliper rule body swing joint's setting can zero again to wide range measurement, improves measurement accuracy.

Description

Cabin aperture detects instrument

Technical Field

The utility model relates to a technical field of car auxiliary component, more specifically relates to a cabin aperture detects instrument.

Background

The appearance of the front wall of the whole automobile is matched more, if an engine hood, a headlamp, a front fender and the like are matched in a plurality of complex appearances, the opening size of a front cabin assembly has great influence on the installation and matching precision of exterior parts, and the front cabin needs to be measured frequently so as to evaluate the opening size precision of the cabin. Similar measurement is also available in China, such as the airplane door member measurement method with Chinese patent publication No. CN 110793456A.

At present, a front engine room assembly needing to be measured is firstly unbatched from a production line, then a front engine room measuring support is switched to a three-coordinate measuring platform, the front engine room assembly is placed on the measuring support, the opening size of the front engine room is measured by using a double cantilever after coordinates are established, the measuring support is reset after the measurement is finished, and the front engine room assembly is put into the production line. However, this measurement method has the following disadvantages: the operation is complex, and the operation intensity is high; the vehicles are off-batched, and occupy a placing field and a placing trolley; the measurement time is long, the efficiency is low, and measurement resources are occupied; the problem response speed is slow, which leads to poor batch quality and increases the repair cost.

The reasons for this are as follows: firstly, the method needs to apply for batch separation, detention and re-investment of vehicles in a production line, so that the production line stops for waiting, a front engine room is transported and carried for multiple times, the operation is complex, and the operation intensity is high; the body in white is off-batched, occupies a placing field and a trolley, is easy to cause confusion, and increases the field management difficulty and the management cost; thirdly, switching the measuring support and establishing a measuring reference, wherein the measuring time is about 2 hours, and three-coordinate measuring resources are occupied; and fourthly, when the quality of the whole vehicle is poor and the quality is analyzed to be poor due to the fact that the opening size of the front cabin is out of tolerance, or when the opening size of the front cabin is out of tolerance through three-coordinate measurement, a production line already produces a large number of white vehicle bodies in the middle of the period, the poor quality of the vehicle bodies in batches flows out, and the quality repair cost is increased. After the improvement strategy is implemented, the front cabin assembly needs to be batched again, and the opening size needs to be measured again to confirm the improvement effect. If no effect exists, repeated batch removal measurement is needed, and the problem correspondence efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a cabin aperture detects instrument.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the utility model provides a cabin aperture detects instrument, detect the instrument including the slide caliper rule body, fixed position portion, the activity measurement portion that are equipped with the scale, fixed position portion and slide caliper rule body fixed connection, activity measurement portion and slide caliper rule body swing joint, the detection instrument still is equipped with the activity zero set portion that is used for providing the secondary zero set point, activity zero set portion and slide caliper rule body swing joint.

Activity measuring portion can adjust as required to measuring the stroke with slide caliper rule body swing joint's setting. Through the detection instrument still is equipped with the movable zero setting portion that is used for providing the secondary zero setting point, movable zero setting portion and slide caliper rule body swing joint's setting can zero again to wide range measurement, improves measurement accuracy.

Preferably, the distance value between the movable measuring part and the fixed positioning part is 0-1600 mm; the caliper is characterized in that a plurality of fixing positioning plates are arranged on the caliper body, and clamping holes for fixing clamping are formed in the fixing positioning plates. Through the distance value between the fixed location portion of activity measuring part distance is 0 ~ 1600mm setting, can realize a wide range and measure. The arrangement is that when the distance between two holes with large measuring range is measured, the fixed positioning part and the movable measuring part can be fixed above the two holes according to requirements, then the scale value of the fixed positioning plate at the closest point of the measuring end is selected to be zero, the movable zero adjusting part is inserted into the fixed positioning plate through the clamping hole, then the movable measuring part is moved, and the accurate measuring value between the two holes is obtained together according to the position setting of the fixed positioning part and the movable zero adjusting part. That is to say, the setting of a plurality of fixed locating plates is for fixed movable zero setting portion or other points that need the location, and these are all preferred certainly, and not restrictive regulation, other parts that need the location also can cooperate through the joint hole of fixed locating plate.

Preferably, the movable measuring part and the movable zero setting part are both connected with the caliper body in a sliding manner. It should be noted that the arrangement of the sliding connection is preferred, not a limitative choice, and other types of movable connections are possible.

Preferably, fixed position portion includes first locating piece, stiff end locating pin and first connecting block, stiff end locating pin and first locating piece fixed connection and whole through first connecting block and slide caliper rule body fixed connection. The fixed end positioning pin is arranged to fix the starting end of the fixed end positioning pin when the distance value between the two holes is measured.

Preferably, the movable measuring part comprises a second positioning block, a movable positioning pin and a sliding block, and the movable positioning pin is fixedly connected with the second positioning block and integrally connected with the caliper body in a sliding manner through the sliding block. This is provided for movement as required for better measurement, although this sliding arrangement is only preferred and other movable arrangements are possible.

Preferably, the fixed positioning plates include five fixed positioning plates distributed at a plurality of integer wide range positions. The arrangement provides a plurality of secondary zero resetting points which can facilitate the insertion of the movable zero-setting part, and the large-range measurement is converted into the measurement from the terminal to the nearest small-range measurement, so that the measurement error of the large range is reduced, and the overall measurement precision is improved.

Preferably, five fixed locating plates are distributed at the scales of 800mm, 1000mm, 1200mm, 1400mm and 1600mm of the caliper body. It should be noted that, several return-to-zero points of a large range are provided here, so as to improve the measurement accuracy of the large range.

Preferably, the activity measuring part further comprises a digital display meter capable of sensing intelligent display, and the digital display meter is fixedly connected with the second positioning block. The setting is so in order to carry out high-efficient quick intelligent measurement to it, improves measuring efficiency and speed.

Preferably, the digital display meter is provided with an inductor, a controller and a display screen which are electrically connected in sequence. It should be noted that this is merely a configuration that provides an intelligent and fast measurement, which is preferred only and not a limiting provision. The general controller can be a single chip microcomputer or a DSP processor, and no specific requirements are made.

Preferably, the caliper body is of an aluminum tube structure, the movable zero setting part is a zero setting positioning pin, the zero setting positioning pin is made of Cr12, and the hardness is HRC 45-HRC 50. The caliper rule body is of an aluminum pipe structure, so that cost can be reduced, and the caliper rule body is light and convenient to use. It should be noted that the selection of such materials is merely preferred and not a restrictive specification.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model can realize wide-range measurement by setting the distance value between the movable measuring part and the fixed positioning part to be 0-1600 mm; and the movable measuring part and the caliper body are movably connected, so that the measuring stroke can be adjusted according to the requirement. Through the detection instrument still is equipped with the movable zero setting portion that is used for providing the secondary zero setting point, movable zero setting portion and slide caliper rule body swing joint's setting can zero again to wide range measurement, improves measurement accuracy. Simultaneously this novel still simple structure adopts an aluminum pipe major structure, realizes cabin aperture size measurement, does not need three-dimensional measuring platform, convenient operation, and the operation is good, need not stop the line and takes off batch vehicle. And the tool uses an aluminum pipe, a digital display meter and other small connecting mechanisms, so that the manufacturing cost is low, the popularization is easy, and the cost is low. The method can directly measure on line through the digital display meter, has high data acquisition speed, avoids the complex measuring process of three coordinates and shortens the measuring time. The tool is convenient to carry, can measure on site, implements strategies in time, confirms the effect quickly, avoids mass production and outflow, and accordingly reduces the corresponding cost of quality problems. Except for cabin opening measurement, the tool can be used for measuring the opening of a vehicle body and the relative distance of an auxiliary frame mounting hole by adjusting the measurement stroke, can be shared by multiple vehicle types, and has good flexibility and wide application range.

Drawings

FIG. 1 is a schematic structural diagram of a nacelle opening degree detection tool according to an embodiment;

FIG. 2 is a schematic view of the connection structure between the movable measuring part and the caliper body in FIG. 1;

fig. 3 is a schematic structural view of the connection between the fixing and positioning portion and the caliper body in fig. 1.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to 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 therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Examples

As shown in fig. 1 to 3, the embodiment of the cabin opening degree detection tool of the present invention includes a caliper body 1 with scales, a fixed positioning portion 2, and a movable measuring portion 3, wherein the fixed positioning portion 2 is fixedly connected to the caliper body 1, the movable measuring portion 3 is movably connected to the caliper body 1, and a distance between the movable measuring portion 3 and the fixed positioning portion 2 is 0-1600 mm; the detection tool is also provided with a movable zero setting part 4 for providing a secondary zero setting point, and the movable zero setting part 4 is movably connected with the caliper body 1.

Wherein, be equipped with a plurality of fixed position board 11 on the slide caliper rule body 1, all be equipped with the joint hole that is used for fixed joint on a plurality of fixed position board 11. The arrangement is that when measuring the distance between two holes with large measuring range, the fixed positioning part and the movable measuring part can be fixed above the two holes according to requirements, then the scale value of the fixed positioning plate at the closest point of the measuring end is selected to return to zero, the movable zero-setting part is inserted into the fixed positioning plate through the clamping hole, then the movable measuring part is moved, and the accurate measuring value between the two holes is obtained together according to the position setting of the fixed positioning part and the movable zero-setting part. That is to say, the setting of a plurality of fixed locating plates is for fixed movable zero setting portion or other points that need the location, and these are all preferred certainly, and not restrictive regulation, other parts that need the location also can cooperate through the joint hole of fixed locating plate.

In addition, the movable measuring part 3 and the movable zero setting part 4 are both connected with the caliper body 1 in a sliding manner. It should be noted that the arrangement of the sliding connection is preferred, not a limitative choice, and other types of movable connections are possible.

Wherein, fixed position portion 2 includes first locating piece 21, stiff end locating pin 22 and first connecting block 23, and stiff end locating pin 22 and first locating piece 21 fixed connection just wholly pass through first connecting block 23 and slide caliper rule body 1 fixed connection. The fixed end positioning pin is arranged to fix the starting end of the fixed end positioning pin when the distance value between the two holes is measured.

In addition, the movable measuring part 3 includes a second positioning block 31, a movable positioning pin 32 and a slider 33, and the movable positioning pin 32 is fixedly connected with the second positioning block 31 and is integrally connected with the caliper body 1 in a sliding manner through the slider 33. This is provided for movement as required for better measurement, although this sliding arrangement is only preferred and other movable arrangements are possible.

Wherein, a plurality of fixed locating plate 11 includes five, and five fixed locating plate 11 distribute in a plurality of integer wide range positions. The arrangement provides a plurality of secondary zero resetting points which can facilitate the insertion of the movable zero-setting part, and the large-range measurement is converted into the measurement from the terminal to the nearest small-range measurement, so that the measurement error of the large range is reduced, and the overall measurement precision is improved.

In addition, five fixed positioning plates 11 are distributed at the scales of 800mm, 1000mm, 1200mm, 1400mm and 1600mm of the caliper body 1. It should be noted that, several return-to-zero points of a large range are provided here, so as to improve the measurement accuracy of the large range.

The activity measuring part 3 further comprises a digital display meter 34 capable of sensing intelligent display, and the digital display meter 34 is fixedly connected with the second positioning block 31. The arrangement is convenient for carrying out high-efficiency quick intelligent measurement on the measurement, and the measurement efficiency and speed are improved

In addition, the digital display meter 34 is provided with a sensor, a controller and a display screen which are electrically connected in sequence. It should be noted that this is merely a configuration that provides an intelligent and fast measurement, which is preferred only and not a limiting provision. The general controller can be a single chip microcomputer or a DSP processor, and no specific requirements are made.

The caliper body 1 is of an aluminum tube structure, the movable zero setting part 4 is a zero setting positioning pin, the zero setting positioning pin is made of Cr12, and the hardness is HRC 45-HRC 50. The caliper rule body is of an aluminum pipe structure, so that cost can be reduced, and the caliper rule body is light and convenient to use. It should be noted that the selection of such materials is merely preferred and not a restrictive specification.

Specifically, the method comprises the following steps: a square aluminum tube (made of aluminum alloy 6061 and adopting a light weight design) is processed to be used as a caliper body. The first connecting block 23 is machined and the connecting plate is fixed to the aluminum pipe by drilling and bolting. 5 fixed location board 11 of processing, 5 fixed location board 11 pass through the bolt and fix to the aluminum pipe respectively and also be the slide caliper rule body 1, and every 11 processing 1 joint holes of fixed location board are also the locating hole. The first positioning block 21 and the first connecting block 23 of the fixed end are processed by using an A3 steel plate, the second positioning block 31 is processed by using an A3 steel plate, and two taper pins (the fixed end positioning pin 1 and the movable positioning pin 1 are made of Cr12 with the hardness of HRC 45-HRC 50) are processed. The first positioning block 21, the fixed end positioning pin 22, and the first connecting block 23 are assembled by drilling and bolts to form the fixed positioning portion 2 of the caliper, and the fixed end caliper is fixed to the aluminum pipe by the bolts. The second positioning block 31, the movable positioning pin 32 and the sliding block 33 are assembled by drilling and bolts to form the movable end caliper. And fixing the digital display meter and the movable end caliper to the aluminum pipe through bolts. 3 reference holes and 3 reference surfaces are machined on the aluminum pipe body and used for three-coordinate measurement calibration. 1 piece of zero setting positioning pin 1 (made of Cr12 with the hardness of HRC 45-HRC 50) is processed and fixed on the caliper body by using a rope.

Reference hole requirements: in order to facilitate accurate fixation of the checking fixture on the equipment workbench during machining of the checking fixture or three-coordinate measurement, a reference hole needs to be arranged. A reference hole of phi 10H7 was machined in the center of the upper surface of the reference block to measure it.

Positioning hole requirements: in the locating hole, in order to ensure that the locating pin is accurately located, a guide shaft sleeve must be installed, and the guide shaft sleeve and the detection tool body are bonded.

Tool precision requirement (mm): the parallelism and verticality precision of the reference surface is 0.05/1000; measuring the position of the reference hole to be +/-0.05; measuring the relative position error between the reference holes to be +/-0.03; the position of the cylindrical pin hole is +/-0.1; the hole position tolerance of the positioning hole is +/-0.05; hole and shaft matching H7/g.

The specific measurement steps are as follows:

when the device is used, a near zeroing block is selected to be zeroed according to the distance between two holes of a part (the movable end caliper needs to be moved to the position above a hole to be measured, a positioning pin is inserted, a zeroing key is pressed, and the positioning pin can be pulled out after the digital display number is confirmed to be zero.e. the hole distance is 1548.5, and the position 1600 can be used for zeroing); pulling out the return-to-zero pin, and moving the movable end caliper to a proper position; simultaneously inserting a fixed end caliper positioning pin and a movable end caliper positioning pin into corresponding holes of the part, ensuring the joint stability of the pin surface and the part, and reading the reading on a digital display meter; calculating the actual distance between the two holes according to the reading of the digital display meter and the zero position, and recording data; pulling out the positioning pin, taking down the checking fixture, and repeating the above operations to measure other holes; and turning off the digital display meter, resetting all parts and arranging the checking fixture.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides an aircraft cabin aperture detection instrument, its characterized in that, detection instrument is including slide caliper rule body (1), fixed position portion (2), the activity measuring part (3) that is equipped with the scale, fixed position portion (2) and slide caliper rule body (1) fixed connection, activity measuring part (3) and slide caliper rule body (1) swing joint, detection instrument still is equipped with movable zero setting portion (4) that are used for providing the secondary zero setting point, movable zero setting portion (4) and slide caliper rule body (1) swing joint.

2. The nacelle opening degree detection tool according to claim 1, wherein a distance value between the movable measuring part (3) and the fixed positioning part (2) is 0-1600 mm; the caliper is characterized in that a plurality of fixing positioning plates (11) are arranged on the caliper body (1), and clamping holes for fixing clamping are formed in the fixing positioning plates (11).

3. The tool for detecting the opening degree of the cabin according to claim 2, wherein the movable measuring part (3) and the movable zero setting part (4) are both connected with the caliper body (1) in a sliding manner.

4. The nacelle opening degree detection tool according to any one of claims 1 to 3, wherein the fixed positioning portion (2) includes a first positioning block (21), a fixed end positioning pin (22), and a first connecting block (23), and the fixed end positioning pin (22) is fixedly connected to the first positioning block (21) and is integrally and fixedly connected to the caliper body (1) through the first connecting block (23).

5. The nacelle opening degree detection tool according to any one of claims 1 to 3, wherein the movable measuring portion (3) includes a second positioning block (31), a movable positioning pin (32), and a slider (33), and the movable positioning pin (32) is fixedly connected with the second positioning block (31) and is integrally connected with the caliper body (1) in a sliding manner through the slider (33).

6. The nacelle opening detection tool according to claim 2, wherein the number of fixed positioning plates (11) comprises five, and the five fixed positioning plates (11) are distributed at a number of integer wide range positions.

7. The tool for detecting the opening degree of the engine room as claimed in claim 6, wherein five fixed positioning plates (11) are distributed at the scales of 800mm, 1000mm, 1200mm, 1400mm and 1600mm of the caliper body (1).

8. The tool for detecting the opening degree of the cabin according to claim 5, wherein the movable measuring part (3) further comprises a digital display meter (34) capable of sensing and intelligently displaying, and the digital display meter (34) is fixedly connected with the second positioning block (31).

9. The tool for detecting the opening degree of the cabin according to claim 8, wherein the digital display meter (34) is provided with a sensor, a controller and a display screen which are electrically connected in sequence.

10. The tool for detecting the opening degree of the nacelle according to claim 1, wherein the caliper body (1) is of an aluminum tube structure, the movable zero setting portion (4) is a zero setting positioning pin, the zero setting positioning pin is made of Cr12 and has a hardness of HRC 45-HRC 50.