CN219179339U - Automobile profile quality detection device - Google Patents

Abstract

The utility model relates to the technical field of automobile part detection and discloses an automobile profile quality detection device, which comprises a lifting mechanism, wherein the bottom of the lifting mechanism is provided with a connecting mechanism for connecting with an automobile profile; the translation mechanism is connected with the lifting mechanism and can be driven by the lifting mechanism to perform lifting movement; and the detection mechanism is connected to the translation mechanism in a sliding way and comprises a reference detection head and a target detection head which are used for detecting the reference point and the Z-axis direction position information of the target point. The detection mechanism can rapidly judge whether the surface defects exist near the target curve according to the change rule of the detection values by quantitatively detecting the position information of the datum point and the target point, and can quantitatively display the appearance defects of the surface of the automobile, so that subjective errors caused by manual visual inspection are avoided, the size of the surface defects of the automobile is accurately positioned and rapidly measured, and operators are guided to optimize and correct the defects.

Description

Automobile profile quality detection device

Technical Field

The utility model relates to the technical field of automobile part detection, in particular to an automobile profile quality detection device.

Background

With the continuous improvement of living standard, people do not need to be simple vehicles any more for pursuing automobiles, and not only pay attention to the performance index of an automobile engine, but also put forward higher requirements on the appearance quality of the automobile. The method for controlling the appearance quality of the automobile stamping parts by the automobile production factories in the world mainly adopts Audi's review, wherein the Audi's review has a core means of manual visual inspection and oil stone polishing to realize defect inspection, and the two methods can only qualify defects, can not prepare and quantify the defects, can not accurately position the defects, can not guide die correction, can not quickly measure the sizes of the defects of the stamping parts, and guide technicians to optimize and correct the defects; meanwhile, the manual inspection has great subjective errors, and the problems are needed to be solved.

Disclosure of Invention

The utility model aims to provide an automobile profile quality detection device, which solves the problem that the existing manual visual mode cannot accurately and quantitatively detect the appearance quality of an automobile profile.

In order to solve the technical problems, the utility model is realized by adopting the following technical scheme:

an automotive profile quality inspection device comprising:

the lifting mechanism 100 is provided with a connecting mechanism 200 at the bottom for connecting with the profile of the automobile;

the translation mechanism 300 is connected with the lifting mechanism 100 and can be driven by the lifting mechanism 100 to perform lifting motion;

and a detection mechanism 400 slidably connected to the translation mechanism 300, wherein the detection mechanism 400 includes a reference detection head 410 and a target detection head 420 for detecting the reference point and the position information of the target point in the Z-axis direction.

Further, the lifting mechanism 100 includes a column 110, and a lifting slider 120 slidably connected to the column 110, and the translation mechanism 300 is connected to the lifting slider 120.

Further, a plurality of clamping holes 111 are formed in the upright post 110 along the length direction thereof, and positioning holes 121 are formed in the corresponding lifting slide blocks 120, so that the lifting slide blocks 120 can be positioned on the upright post 110 by using positioning pins.

Further, the translation mechanism 300 includes a Y-direction linear slide rail mechanism, a Y-direction slide rail 310 of the Y-direction linear slide rail mechanism is connected to the lifting slider 120, a Y-direction slide block 320 of the Y-direction linear slide rail mechanism is connected to an X-direction connecting rod 330, an X-direction slide block 340 is slidingly connected to the X-direction connecting rod 330, and the X-direction slide block 340 is used for installing the detection mechanism 400.

Further, the positioning linear guide rail of the Y-direction linear guide rail mechanism can detect the Y-direction position information of the Y-direction slider 320.

Further, the connection mechanism 200 includes a fixed suction cup 210 connected to the bottom of the lifting mechanism 100.

Further, the fixed suction cup 210 is connected to the bottom of the lifting mechanism 100 through a universal mechanism 220.

Further, the universal mechanism 220 includes a universal convex handle 221 and a connection seat 222 disposed at the bottom of the lifting mechanism 100, a cover plate 223 is detachably connected to the connection seat 222, a space for installing the round end of the universal convex handle 221 is provided between the cover plate 223 and the connection seat 222, and the rod end of the universal convex handle 221 is connected to the fixing suction cup 210.

Further, a limiting mechanism 130 is disposed at the top end of the lifting mechanism 100.

Further, the device further comprises an upper computer, and the upper computer is electrically connected with the detection mechanism 400.

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

according to the automobile profile quality detection device provided by the utility model, the detection mechanism can rapidly judge whether the profile defects exist near the target curve according to the change rule of the detection values through quantitative detection of the reference point and the target point position information, and can quantitatively detect the appearance defects of the automobile profile, so that subjective errors caused by manual visual inspection are avoided, the size of the automobile profile defects is accurately positioned and rapidly detected, and operators are guided to optimize and correct the defects.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic diagram of an apparatus for detecting the quality of an automobile profile;

FIG. 2 is an enlarged schematic view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of a lifting slider structure according to the present utility model;

FIG. 4 is an enlarged schematic view of a portion of FIG. 1 at B;

FIG. 5 is an enlarged schematic view of a portion of FIG. 1 at C;

FIG. 6 is an enlarged schematic view of a portion of the portion of FIG. 1 at D;

FIG. 7 is a schematic illustration of the profile of a vehicle to be tested;

in the above figures:

100. lifting mechanism, column, clamping hole, slot, lifting slide block, positioning hole, hollow cavity, protruding strip, and limiting mechanism, wherein the lifting mechanism comprises lifting mechanism, column, clamping hole, and chute, and lifting slide block, and the positioning hole comprises lifting slide block, and hollow cavity, and the positioning hole comprises lifting mechanism, column, clamping hole, chute, and lifting slide block, and positioning hole, and hollow cavity, and the positioning hole comprises lifting mechanism, column, and limiting mechanism comprise lifting bar, and limiting mechanism;

200. the connecting mechanism comprises a connecting mechanism, a fixed sucker, a universal mechanism, a universal convex handle, a connecting seat and a cover plate, wherein the connecting mechanism comprises a connecting mechanism, a fixed sucker, a universal mechanism, a universal convex handle, a connecting seat and a cover plate;

300. the device comprises a translation mechanism, a 310. Y-direction sliding rail, a 320. Y-direction sliding block, a 321. Second display screen, a 322. Position reset key, a 323. Position output port, a 324. Position output key, a 330. X-direction connecting rod and a 340. X-direction sliding block;

400. the detection mechanism comprises a detection mechanism, a reference detection head, a target detection head, a first display screen, a reference detection head clear key, a target detection head clear key, a detection value output port and a detection value output key, wherein the reference detection head, the target detection head, the first display screen and the reference detection head clear key are respectively arranged in sequence, the reference detection head clear key and the target detection head clear key, the detection value output port are respectively arranged in sequence, and the detection value output key is arranged in sequence;

500. automobile profile, 510, reference curve, 511, first reference point, 512, second reference point, 520, target curve, 521, first target point, 522, second target point, 523, third target point, 524, fourth target point.

Detailed Description

For the purpose of promoting an understanding of the principles and advantages of embodiments of the utility model, reference will now be made in detail to the drawings, in which it is apparent that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, the present embodiment provides an apparatus for detecting quality of an automobile profile, which includes a lifting mechanism 100, a connecting mechanism 200, a translation mechanism 300, and a detecting mechanism 400.

The lifting mechanism 100 comprises four upright posts 110 arranged along the Z-axis direction, and a lifting slider 120 slidingly connected to the upright posts 110.

Referring to fig. 2 and 3, fig. 2 shows a partial structure of the upright 110, and fig. 3 shows a structure of the elevating slider 120.

The side wall of the upright post 110 is provided with a plurality of clamping holes 111 along the length direction thereof, and the corresponding lifting slide block 120 is provided with a positioning hole 121, so that the lifting slide block 120 can be positioned on the upright post 110 by using a positioning pin.

The other two opposite side walls of the upright post 110 are also provided with sliding grooves 112 along the length direction thereof, the corresponding hollow cavity 122 of the lifting slide block 120 is internally provided with a protruding strip 123 matched with the sliding grooves 112, and the lifting slide block 120 is ensured to stably slide on the upright post 110 through the matching of the protruding strip 123 and the sliding grooves 112.

The top end of the upright post 110 is provided with a limiting mechanism 130, and in this embodiment, preferably, the limiting mechanism 130 is a stop block disposed at the top end of the upright post 110, so as to prevent the lifting slider 120 from sliding out of the top end of the upright post 110.

Referring to fig. 1, the connection mechanism 200 is disposed at the bottom of the pillar 110, and is used for connecting with the profile of the vehicle.

Referring to fig. 4, fig. 4 shows the structure of the connection mechanism 200, and the connection mechanism 200 includes a fixed suction cup 210 connected to the bottom of the upright 110.

Since the profile of the automobile is a curved surface, in this embodiment, it is preferable that the fixing suction cup 210 is connected to the bottom of the upright post 110 through a universal mechanism 220, and the angle of the fixing suction cup 210 is adjusted through the universal mechanism 220, so that the fixing suction cup 210 can be adsorbed on the profile of the automobile.

The universal mechanism 220 comprises a universal convex circular handle 221 and a connecting seat 222 arranged at the bottom of the upright post 110, the rod end of the universal convex circular handle 221 is connected with the fixed sucker 210, a cover plate 223 is detachably connected to the connecting seat 222, the connecting seat 222 is provided with a first concave circular arc surface, the cover plate 223 is provided with a second concave circular arc surface, the first concave circular arc surface and the second concave circular arc surface are correspondingly arranged to form a space for installing the circular head end of the universal convex circular handle 221, the circular head end of the universal convex circular handle 221 is arranged in the first concave circular arc surface and the second concave circular arc surface, when the cover plate 223 is not screwed with a bolt connected with the connecting seat 222, the circular head end of the universal convex circular handle 221 can rotate in the inner circular surface formed by the first concave circular arc surface and the second concave circular arc surface, and after the bolt is screwed, the first concave circular arc surface and the second concave circular arc surface fix the universal convex circular handle 221 through friction force.

Referring to fig. 1, the translation mechanism 300 is connected to the lifting slider 120, and can be driven by the lifting slider 120 to perform lifting motion; the translation mechanism 300 includes two sets of Y-direction linear slide rail mechanisms, two ends of a Y-direction slide rail 310 of each Y-direction linear slide rail mechanism are connected with lifting sliders 120 on two upright posts 110, Y-direction sliders 320 of each Y-direction linear slide rail mechanism are connected through an X-direction connecting rod 330, an X-direction slider 340 is slidingly connected to the X-direction connecting rod 330, and the X-direction slider 340 is used for installing the detection mechanism 400.

Referring to fig. 5, fig. 5 shows the structure of the Y-directional slider 320, and in this embodiment, preferably, a positioning linear guide is used for the Y-directional linear rail mechanism, so as to detect the Y-directional position information of the Y-directional slider 320, and further determine the Y-directional position information of the detection mechanism 400. The Y-direction slider 320 is provided with a second display screen 321, a position reset key 322, a position output port 323 and a position output key 324, wherein the second display screen 321 is used for displaying a detection value of the Y-direction slider 320, the position reset key 322 is used for resetting the Y-axis direction detection value, the position output port 323 is connected with the upper computer, and the position output key 324 uploads the detection value to the upper computer through the position output port 323.

Referring to fig. 1, the detection mechanism 400 is slidably coupled to the translation mechanism 300.

Referring to fig. 6, fig. 6 shows a structure of the detecting mechanism 400, and the detecting mechanism 400 may be a digital display dial-like device including a reference detecting head 410 and a target detecting head 420 mounted on the X-direction slider 340 and disposed along the Z-axis direction, and a first display screen 430.

The reference detecting head 410 is used for detecting a Z-axis direction detection value of a reference point arranged on the surface of the automobile; the mark detection head 420 is used for detecting a Z-axis direction detection value of a target detection point arranged on the surface of the automobile; the first display 430 is configured to display a detection value detected by the detection mechanism 400.

The first display screen 430 is further provided with a reference detection head clear key 440, a target detection head clear key 450, a detection value output port 460 and a detection value output key 470, wherein the reference detection head clear key 440 is used for clearing the detection value of the reference point, the target detection head clear key 450 is used for clearing the detection value of the target detection point, the detection value output port 460 is connected with the upper computer, and the detection value output key 470 is used for uploading the detection value data detected by the detection mechanism 400 to the upper computer through the detection value output port 460.

The principle of the automobile profile quality detection device provided by the embodiment is as follows: the automobile profile is a class A curved surface, the characteristic curvature of the class A curved surface is continuous, abrupt change of curvature is avoided, the visual effect is smooth, and the feeling of abrupt interruption is avoided.

As shown in fig. 7, the two parallel reference curve 510 and target curve 520 cross-sectional lines on the automobile profile 500 are also continuous in curvature, and it is known that:

the change rates of the absolute values of the coordinates of the equipotential points of the reference curve 510 and the target curve 520, which are parallel to each other, and the adjacent equipotential points are infinitely equal, that is: the first reference point 511 and the second reference point 512 are different, the first target point 521 and the second target point 522 are different, and the two differences tend to be equal.

In addition, the change rate of the absolute values of the coordinates of two adjacent points on the same section line and the change rate of the absolute values of the coordinates of other two points equidistant from the same section line are in an infinite trend equal difference array relation, namely: the first target 521 is different from the second target 522, the second target 522 is different from the third target 523, the third target 523 is different from the fourth target 524, and the three sets of infinite tend to be in an arithmetic progression.

The application method of the automobile profile quality detection device provided by the embodiment comprises the following steps:

the inspection device is fixed above the automotive profile quality defect by four of the fixing suction cups 210.

The translation mechanism 300 is adjusted to a proper height through the lifting slide block 120, and a positioning pin passes through the positioning hole 121 and the clamping hole 111 to fix the position of the translation mechanism 300.

Sliding the X-direction connecting rod 330 on the Y-direction slide rail 310, sliding the detection mechanism 400 on the X-direction connecting rod 330, aligning the reference detection head 410 on the detection mechanism 400 with the first reference point 511 on the reference curve 510, and aligning the target detection head 420 on the detection mechanism 400 with the first target point 521 on the target curve 520; at this time, the reference detection head clear key 450 and the target detection head clear key 460 on the detection mechanism 400 are cleared simultaneously.

Continuing to slide the X-direction connecting rod 330 on the Y-direction slide rail 310, sliding the detection mechanism 400 on the X-direction connecting rod 330, aligning the reference detection head 410 on the detection mechanism 400 with the second reference point 512 on the reference curve 510, and aligning the target detection head 420 with the second target point 522 on the target curve 520; at this time, the detection value output button 470 on the detection mechanism 400 is pressed, and the detection value output port 460 inputs the detection value to the upper computer for storage.

Pressing the position output key 324, the Y position of the detection mechanism 400 is transmitted to the host computer for storage through the position output port 323.

The upper computer calculates the difference between the first reference point 511 and the second reference point 512, and the difference between the first target point 521 and the second target point 522, and determines whether the two differences tend to be equal.

The adjacent target points on the target curve 520 are sequentially detected, and the upper computer calculates the difference values of the first target point 521 and the second target point 522, the second target point 522 and the third target point 523, and the third target point 523 and the fourth target point 524, and determines whether the three groups tend to be in an arithmetic progression or not.

According to the change rule of the detected values, it can be rapidly determined whether the profile defect exists near the target curve 520.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An automotive profile quality inspection device, comprising:

a lifting mechanism (100), the bottom of which is provided with a connecting mechanism (200) for connecting with the profile of the automobile;

the translation mechanism (300) is connected with the lifting mechanism (100) and can be driven by the lifting mechanism (100) to perform lifting movement;

and the detection mechanism (400) is connected to the translation mechanism (300) in a sliding manner, and the detection mechanism (400) comprises a reference detection head (410) and a target detection head (420) which are used for detecting the reference point and the position information of the target point in the Z-axis direction.

2. The apparatus of claim 1, wherein the lifting mechanism (100) comprises a column (110) and a lifting slider (120) slidably coupled to the column (110), and the translation mechanism (300) is coupled to the lifting slider (120).

3. The device for detecting the quality of the profile of the automobile according to claim 2, wherein a plurality of clamping holes (111) are formed in the upright (110) along the length direction of the upright, positioning holes (121) are formed in the corresponding lifting slide blocks (120), and the lifting slide blocks (120) can be positioned on the upright (110) by using positioning pins.

4. The device for detecting the quality of the profile of the automobile according to claim 2, wherein the translation mechanism (300) comprises a Y-direction linear slide rail mechanism, a Y-direction slide rail (310) of the Y-direction linear slide rail mechanism is connected to the lifting slide block (120), an X-direction connecting rod (330) is connected to a Y-direction slide block (320) of the Y-direction linear slide rail mechanism, an X-direction slide block (340) is connected to the X-direction connecting rod (330) in a sliding manner, and the X-direction slide block (340) is used for installing the detection mechanism (400).

5. The device for detecting the quality of the profile of an automobile according to claim 4, wherein the Y-direction linear rail mechanism employs a positioning linear rail for detecting the Y-direction position information of the Y-direction slider (320).

6. An automotive profile quality inspection device according to claim 1, characterized in that the connection means (200) comprise a fixed suction cup (210) connected to the bottom of the lifting means (100).

7. The device for detecting the quality of the profile of the automobile according to claim 6, wherein the fixed suction cup (210) is connected with the bottom of the lifting mechanism (100) through a universal mechanism (220).

8. The device for detecting the quality of the molded surface of the automobile according to claim 7, wherein the universal mechanism (220) comprises a universal convex circular handle (221) and a connecting seat (222) arranged at the bottom of the lifting mechanism (100), a cover plate (223) is detachably connected to the connecting seat (222), a space for installing the circular end of the universal convex circular handle (221) is arranged between the cover plate (223) and the connecting seat (222), and the rod end of the universal convex circular handle (221) is connected with the fixed sucker (210).

9. The device for detecting the quality of the profile of the automobile according to claim 1, wherein the top end of the lifting mechanism (100) is provided with a limiting mechanism (130).

10. The device for detecting the quality of the molding surface of the automobile according to claim 1, further comprising an upper computer, wherein the upper computer is electrically connected with the detecting mechanism (400).

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