CN216816466U - Appearance detection device for automobile steering assembly - Google Patents

Abstract

The utility model belongs to the technical field of vehicle engineering, and provides an appearance detection device of an automobile steering assembly, which comprises a device main body, wherein a workbench for detecting an automobile steering shaft is arranged on the device main body; the cooperative robot comprises a cooperative mechanical arm arranged on the device main body, and the cooperative mechanical arm is used for adjusting the multi-pose position of the camera module; the camera module is arranged at the tail end of the cooperative mechanical arm and is used for visually sampling an automobile steering shaft assembly arranged on the workbench; and the fixed tooling module is arranged on the workbench and used for fixing a workpiece to be tested of the automobile steering shaft assembly on the workbench. The utility model utilizes the camera module to complete multi-pose visual detection in a short time, completes the appearance quality detection of the automobile steering shaft by matching with a computer visual algorithm, has convenient detection operation and does not need to install a multi-camera.

Description

Appearance detection device for automobile steering assembly

Technical Field

The utility model belongs to the technical field of vehicle engineering, and relates to an appearance detection device for an automobile steering assembly, in particular to an appearance detection device for an aluminum alloy pipe column and a steering inner shaft in the automobile steering assembly.

Background

At present, the detection of the automobile steering shaft assembly mainly depends on manual quality inspection, namely, a production line depends on a specific mould or a mask to manually inspect the special positions of the steering shaft parts. The method has low efficiency and precision, and the quality inspection mode of batch sampling and judgment by naked eyes cannot ensure the precision and consumes a large amount of labor cost.

With the gradual popularization of the application of the machine vision technology in industrial production, the machine identification precision is higher and higher, and the machine identification precision is gradually and widely used for identification in the process of workpiece processing and quality inspection. In order to improve the detection precision and reduce the loss caused by the risk problems of screw hole position mismatching, low thread quality and the like, the appearance quality inspection of the automobile steering shaft needs to be finished by adopting a high-precision industrial camera and a computer vision algorithm.

However, when detecting an automobile steering shaft assembly, the high-precision industrial camera cannot detect the positions of screw holes in the top surface, the side surface and the middle section of an aluminum alloy pipe column in the automobile steering shaft assembly, and cannot detect the positions of detection such as threads, splines, lock catches and the like of a steering inner shaft in the automobile steering assembly.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the appearance detection device of the automobile steering assembly, which is applied to the production of the automobile steering shaft assembly and can realize the omnibearing detection of the position to be detected of the automobile steering assembly.

In order to achieve the above purpose, the embodiment of the present invention provides the following technical solutions:

in a first aspect, in an embodiment provided by the present invention, there is provided an appearance detecting device for a steering assembly of an automobile, including:

a device main body having a workbench for detecting a steering shaft of an automobile;

the cooperative robot comprises a cooperative mechanical arm arranged on the device main body, and the cooperative mechanical arm is used for adjusting the multi-posture position of the camera module;

the camera module is arranged at the tail end of the cooperative mechanical arm and is used for visually sampling an automobile steering shaft assembly arranged on the workbench; and

and the fixed tooling module is arranged on the workbench and used for fixing a workpiece to be tested of the automobile steering shaft assembly on the workbench.

When the automobile steering shaft detects, the workpiece to be detected is tightly fixed in the fixed tool module through the fixed tool module, the camera module is driven by the cooperation mechanical arm to complete the visual detection of multiple postures in a short time, the appearance quality detection of the automobile steering shaft is completed by matching with a computer visual algorithm, the detection operation is convenient, and a plurality of machine position cameras are not required to be installed.

As a further aspect of the present invention, the apparatus main body further includes a table support for supporting the table and the cooperative mechanical arm, and the cooperative mechanical arm is mounted on the table with a counter weight, or the cooperative mechanical arm is mounted on the table support above the table in a suspended manner.

The cooperation arm is six degree of freedom arms, and the cooperation arm is installed on workstation support above workstation or the workstation, and the homoenergetic is adjusted in the space and is changed the three-dimensional position of terminal position camera module, still has the function that changes terminal position camera module orientation to cooperation camera module is accomplished and is examined the all-round outward appearance quality of work piece.

As a further scheme of the present invention, the device main body further includes an industrial control host and a display, the industrial control host is configured to control the cooperative robot and the camera module to operate, and the camera module is further connected to the display, and is configured to output and display a visual sampling result on the display.

As a further aspect of the present invention, the camera module includes:

the camera body is provided with a lens for visual sampling;

the light source is an annular light source and is distributed along the circumferential direction of the lens of the camera body; and

the camera module support is arranged at the tail end of the cooperative mechanical arm and is compatible with camera bodies of various models and light source installation.

The camera module passes through camera module support mounting when the cooperation arm is terminal, and the regulation that three-dimensional space position and orientation were carried out to camera body and the light source that conveniently cooperates the arm end to drive camera module support mounting realizes that the multi-angle of camera body shoots and vision sampling.

As a further scheme of the utility model, the fixed tool module comprises an aluminum alloy pipe column support and an inner shaft support which are suitable for workpieces to be detected of different models, and the aluminum alloy pipe column support and the inner shaft support are both positioned on the workbench, so that when a quality inspection program is started, under the control of an industrial control host, a cooperative mechanical arm of a cooperative robot can drive the camera module to realize multi-posture and multi-angle visual sampling.

As a further scheme of the utility model, the aluminum alloy pipe column support comprises at least two clamping pieces, the clamping pieces are distributed on the workbench, and an aluminum alloy pipe column of the automobile steering shaft is fixed between the clamping pieces.

As a further aspect of the present invention, the holder includes:

the pressing end plate is provided with a propping surface which is propped against an aluminum alloy pipe column of the automobile steering shaft on one side;

the piston rod is positioned on one side of the compaction end plate, which is far away from the abutting surface, and the piston rod is used for driving the compaction end plate to move so that the clamping piece clamps and fixes the aluminum alloy pipe column of the automobile steering shaft;

the driving cylinder is connected with the piston rod to drive the piston rod to stretch and retract; and

and the supporting block is fixed on the workbench and used for supporting the driving cylinder and guiding the piston rod.

When the aluminum alloy pipe column is fixed, the driving cylinder of the clamping piece is used as power to drive the piston rod to stretch, and the pressing end plates of the clamping piece are utilized to move relatively or oppositely, so that the aluminum alloy pipe column of the automobile steering shaft between the clamping pieces is fixed, and the fixing effect is good.

As a further aspect of the present invention, the holder further includes:

the push block is arranged at one end of the piston rod close to the compression end plate;

the driving motor is arranged on the push block and moves along with the push block when the piston rod stretches;

the drive shaft, drive shaft one end is connected with driving motor's motor shaft, and the drive shaft other end is fixed compress tightly the end plate and keep away from the one side of leaning on the face, and when the drive shaft was used for driving to compress tightly the end plate removal, the drive compressed tightly the end plate and rotates under driving motor drive to adjust the aluminium alloy tubular column of auto steering axle between the holder and wait to detect the position.

As a further scheme of the utility model, the aluminum alloy pipe column support comprises three clamping pieces, the clamping pieces are distributed on the workbench in a triangular shape, the aluminum alloy pipe column of the automobile steering shaft is fixed between the clamping pieces, and the abutting surfaces of the clamping pieces are used for abutting against three different end surfaces of the aluminum alloy pipe column.

As a further aspect of the present invention, the inner shaft bracket includes:

the device comprises two parallel support arms, a bearing shaft and a bearing seat, wherein the support arms are arranged on the bearing shaft which is coaxially arranged;

the bearing blocks are positioned at two ends of the bearing shaft, are used for erecting the bearing arms and are used for bearing the rotation of the shaft; and

and the reversing shaft is coaxially connected with the bearing shaft of at least one supporting arm and used for driving the supporting arms to rotate and driving the inner shaft arranged between the two parallel supporting arms to rotate and reverse so as to sample the omnibearing vision of positions to be measured distributed on the inner shaft in different directions.

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

compared with the conventional automobile steering shaft detection tool, the appearance detection device for the automobile steering assembly disclosed by the embodiment of the utility model ingeniously utilizes the camera module arranged at the tail end of the cooperative mechanical arm to perform multi-posture and multi-angle vision acquisition, utilizes the fixed tool module to fix the aluminum alloy pipe column and the inner shaft on the workbench, utilizes the camera module to complete multi-posture vision detection in a short time, and is matched with a computer vision algorithm to complete appearance quality detection on the automobile steering shaft, the detection operation is convenient, and a multi-machine-position camera is not required to be arranged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.

Fig. 1 is a schematic structural view of an appearance detecting device of an automobile steering assembly according to the present invention.

Fig. 2 is a schematic structural diagram of a camera module in the appearance inspection device for an automobile steering assembly according to the present invention.

FIG. 3 is a schematic structural diagram of an aluminum alloy pipe column support in the appearance inspection device of the automobile steering assembly of the present invention.

Fig. 4 is a schematic structural view of an inner axle bracket in the appearance inspection device for a steering assembly of an automobile according to the present invention.

Fig. 5 is a schematic structural view of the double clamping members in the appearance inspection device for the automobile steering assembly of the present invention.

Fig. 6 is a schematic structural view of the device for detecting the appearance of the steering assembly of the automobile of the present invention.

Description of reference numerals:

1. a device main body; 11. a work table; 12. a stage support; 13. an industrial control host; 14. a display;

2. a collaborative robot; 21. a cooperating robotic arm;

3. a camera module; 31. a camera module holder; 32. a camera body; 321. a lens; 33. a light source;

4. fixing the tool module;

41. an aluminum alloy pipe column support; 411. a clamping member; 4111. a support block; 4112. a drive cylinder; 4113. a piston rod; 4114. a push block; 4115. a drive motor; 4116. a drive shaft; 4117. compressing the end plate; 4118. an abutting surface;

42. an inner shaft bracket; 421. a bracket arm; 422. a bearing shaft; 423. a bearing seat; 424. and a reversing shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

The inventor of the application finds that the detection of the existing automobile steering shaft assembly mainly depends on manual quality inspection, and the production line depends on a specific mould or mask to manually inspect the special positions of the steering shaft parts. The method has low efficiency and precision, the precision cannot be ensured by batch sampling and a quality inspection mode depending on naked eye judgment, and a large amount of labor cost is consumed; during detection, the high-precision industrial camera cannot detect the positions of screw holes in the top surface, the side surface and the middle section of an aluminum alloy pipe column in the automobile steering shaft assembly and cannot detect the positions of threads, splines, lock catches and the like of a steering inner shaft in the automobile steering assembly.

In order to solve the above problems, according to the appearance detection device for the automobile steering assembly provided by the embodiment of the utility model, the aluminum alloy pipe column and the inner shaft are fixed on the workbench by combining the omnibearing multi-pose camera module with the fixed tool module for positioning the automobile steering shaft assembly, the multi-pose visual detection is completed in a short time by using the camera module, the appearance quality detection of the automobile steering shaft is completed by matching with a computer visual algorithm, the detection operation is convenient, and a multi-machine-position camera is not required to be installed.

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

Fig. 1 is a schematic view showing the structure of an appearance inspection device of a steering assembly of an automobile to which the present invention is applied.

As shown in fig. 1, in a first embodiment of the present invention, the appearance inspection device for an automobile steering assembly includes a device body 1, a cooperative robot 2, a camera module 3, and a fixed tool module 4.

In the embodiment of the utility model, the device main body 1 is provided with a workbench 11 for detecting the automobile steering shaft, the cooperative robot 2 comprises a cooperative mechanical arm 21 arranged on the device main body 1, the cooperative mechanical arm 21 is used for adjusting the multi-posture position of the camera module 3, the camera module 3 is arranged at the tail end of the cooperative mechanical arm 21 and is used for visually sampling the automobile steering shaft assembly arranged on the workbench 11, the fixed tooling module 4 is arranged on the workbench 11, and the fixed tooling module 4 is used for fixing a workpiece to be detected of the automobile steering shaft assembly on the workbench 11.

In this embodiment, when the automobile steering shaft detects, lead to fixed frock module 4 and closely fix the work piece that awaits measuring in fixed frock module 4 to cooperating arm 21 to drive camera module 3 and accomplish the visual detection of multi-attitude in the short time, in order to cooperate the computer vision algorithm to accomplish the outward appearance quality inspection to the automobile steering shaft, detection simple operation need not to install many quick-witted position cameras.

Wherein said apparatus body 1 further comprises a table frame 12 carrying said table 11 and a cooperating arm 21, said cooperating arm 21 being mounted on said table 11 with its own weight, or said cooperating arm 21 being mounted suspended from said table frame 12 above said table 11, in the present embodiment the cooperative robot 2 is controlled to have a repetition accuracy within the range of 0.02mm and a working radius above 900mm, and preferably said cooperating robot 2 is of the type known as a shuffle-i 5 robot.

In one embodiment of the utility model, the cooperating robotic arm 21 is mounted on the table 11 with its own counterweight. When the device works, the mounting position of the counter weight of the cooperation mechanical arm 21 is used as a base, the cooperation mechanical arm 21 adopts a six-degree-of-freedom mechanical arm, through the cooperative linkage operation of two joints and two connecting pieces, and a steering motor which is arranged on the base and used for driving the cooperation mechanical arm 21, and a rotating motor and a rotating arm which are arranged at the tail end of the cooperation mechanical arm 21 and used for rotation adjustment, multi-posture movement of the camera module 3 mounted at the tail end of the cooperation mechanical arm 21 is realized, the cooperation mechanical arm 21 can adjust and change the three-dimensional position of the camera module 3 at the tail end in space, and the device also has the function of changing the orientation of the camera module 3 at the tail end, and can complete the omnibearing appearance quality inspection of workpieces by matching with the camera module 3.

In one embodiment of the utility model, the cooperating robotic arm 21 is mounted suspended from a table support 12 above the table 11. During operation, the mounting point hung on the cooperative mechanical arm 21 is used as a center, the cooperative mechanical arm 21 adopts a six-degree-of-freedom mechanical arm, the center of the mounting point is used as a circle center, the cooperative linkage operation of two joints of the cooperative mechanical arm 21 and two connecting pieces is matched, and the multi-posture motion of the camera module 3 mounted at the tail end of the cooperative mechanical arm 21 is realized through a steering motor mounted at the mounting point and used for driving the cooperative mechanical arm 21, and a rotating motor and a rotating arm which are positioned at the tail end of the cooperative mechanical arm 21 and used for rotation regulation.

Preferably, the mounting point that cooperation arm 21 hung is located fixed frock module 4 directly over, under the multi-attitude motion of cooperation arm 21, changes the three-dimensional position and the shooting angle of terminal position camera module 3, makes cooperation camera module 3 accomplish the all-round outward appearance quality control to the work piece.

Still include industry control host computer 13 and display 14 on the device main part 1, industry control host computer 13 is used for controlling cooperation robot 2 and the action of camera module 3, camera module 3 still connects display 14 for export and show the vision sampling result on display 14.

In an embodiment of the present invention, during the parameter design of the industrial host 13, the CPU of the industrial host 13 uses Intel i5, the hard disk of the industrial host 13 uses 500GB, and the internal memory uses 16GB, so as to meet the use requirement. Preferably, the display 14 is a touch screen, and the model is a Baijiang intelligent display, for example, an industrial control all-in-one machine integrating a 17-inch display screen with the model of PPC1701 and a touch screen.

In the present embodiment, referring to fig. 1 and 2, the camera module 3 includes a camera body 32, a light source 33, and a camera module holder 31. Wherein, camera module support 31 is installed at the end of cooperation arm 21, camera module support 31 is compatible the camera body 32 and the light source 33 installation of multiple model. The camera body 32 is provided with a lens 321 for visual sampling, and the light source 33 is an annular light source and is circumferentially distributed along the lens 321 of the camera body 32.

Preferably, in an embodiment of the present invention, the camera body 32 adopts a 4K resolution camera with a frame rate of 10fps or more, for example: the camera body 32 is MV-CH089-10GC in model number. When the parameters of the lens 321 are set, the working distance is 300-500mm, the visual field range is 300-200 mm, wherein the model of the lens 321 can be selected to be MVL-KF0814M-12 MPE. The light source 33 is a ring light source, and the model of the light source 33 can adopt an MV-LRDS-200-90-W light source.

When the camera module 3 is installed, the camera module support 31 is installed at the tail end of the cooperative mechanical arm 21, the tail end of the cooperative mechanical arm 21 drives the camera body 32 and the light source 33 installed on the camera module support 31 to adjust the three-dimensional space position and the orientation, and multi-angle shooting and visual sampling of the camera body 32 are achieved.

In an embodiment of the present invention, referring to fig. 1, 3, and 4, the fixed tooling module 4 includes an aluminum alloy tubular column support 41 and an inner shaft support 42 adapted to different models of workpieces to be tested, the aluminum alloy tubular column support 41 and the inner shaft support 42 are both located on the workbench 11, the materials are made of aluminum and are compatible with multiple cameras and light source models, so that when the quality inspection program is started, the fixed tooling module 4 can adapt to different models of workpieces under the control of the industrial control host 13, perform automatic positioning and rotate the workpieces for multi-angle shooting, and the cooperative mechanical arm 21 of the cooperative robot 2 can drive the camera module 3 to realize multi-pose and multi-angle visual sampling.

The aluminum alloy pipe column support 41 comprises at least two clamping pieces 411, the clamping pieces 411 are distributed on the workbench 11, and aluminum alloy pipe columns of the automobile steering shaft are fixed between the clamping pieces 411.

In one embodiment of the present invention, referring to fig. 1 and 5, the aluminum alloy column support 41 includes two clamping members 411, and the two clamping members 411 are oppositely disposed to fix the aluminum alloy column of the steering shaft of the automobile between the two clamping members 411.

In an embodiment of the present invention, referring to fig. 1 and 6, the aluminum alloy pipe column support 41 includes three clamping members 411, the clamping members 411 are distributed on the workbench 11 in a triangular shape, the aluminum alloy pipe column of the steering shaft of the automobile is fixed between the clamping members 411, and the abutting surface 4118 of the clamping members 411 is used for abutting against three different end surfaces of the aluminum alloy pipe column.

Referring to fig. 3, the clamping member 411 includes a pressing end plate 4117, a piston rod 4113, a driving cylinder 4112, and a supporting block 4111. The pressing end plate 4117 is arranged on one side of the pressing end plate 4117 and abuts against a surface 4118 abutted against an aluminum alloy pipe column of the automobile steering shaft, the piston rod 4113 is arranged on one side, far away from the surface 4118, of the pressing end plate 4117, and the piston rod 4113 is used for driving the pressing end plate 4117 to move so as to enable the clamping piece 411 to clamp the aluminum alloy pipe column of the fixed automobile steering shaft. The driving cylinder 4112 is connected to the piston rod 4113 to drive the piston rod 4113 to extend and retract, and the supporting block 4111 is fixed on the worktable 11 for supporting the driving cylinder 4112 and guiding the piston rod 4113.

When fixing the aluminum alloy tubular column, use the driving cylinder 4112 of holder 411 as power, drive piston rod 4113 is flexible, utilize the relative or opposite movement of the terminal plate 4117 that compresses tightly of holder 411 to fix the aluminum alloy tubular column of the car steering spindle between the holder 411, it is fixed effectual.

In one embodiment of the present invention, the clamping member 411 further comprises a pushing block 4114, a driving motor 4115, and a driving shaft 4116. The push block 4114 is installed at one end of the piston rod 4113 close to the pressing end plate 4117; the driving motor 4115 is mounted on the pushing block 4114 and moves together with the pushing block 4114 when the piston rod 4113 extends and retracts; drive shaft 4116 one end and driving motor 4115's motor shaft connection, the drive shaft 4116 other end is fixed compress tightly end plate 4117 and keep away from the one side of leaning on face 4118, when drive shaft 4116 is used for driving and compresses tightly end plate 4117 and remove, drive under driving motor 4115 and compress tightly end plate 4117 and rotate to adjust the position of waiting of the aluminum alloy tubular column of automobile steering axle between the holder 411.

The holder 411 can also cooperate each other to adjust the turning of aluminum alloy tubular column when the aluminum alloy tubular column of automobile steering axle is fixed mutually in the cooperation, when holder 411 quantity is two, carries out the switching of different angles and position, cooperates camera module 3 with more comprehensive completion vision sampling.

In the present embodiment, referring to fig. 4, the inner shaft bracket 42 includes a bearing seat 423, a reversing shaft 424, and two parallel brackets 421. The supporting arms 421 are mounted on a supporting shaft 422 coaxially arranged, the bearing seats 423 are located at two ends of the supporting shaft 422, and are used for erecting the supporting arms 421 and for supporting the rotation of the supporting shaft 422, and the reversing shaft 424 is coaxially connected with the supporting shaft 422 of at least one supporting arm 421 and is used for driving the supporting arms 421 to rotate, so as to drive an inner shaft arranged between the two parallel supporting arms 421 to rotate and reverse, and thus, the omnibearing visual sampling of the inner shaft distributed at positions to be measured in different directions is performed.

The working principle of the utility model is as follows:

when the appearance of the automobile steering shaft assembly is detected, the aluminum alloy pipe column support 41 of the fixed tooling module 4 is used for fixing an aluminum alloy pipe column, and the inner shaft support 42 is used for fixing an inner shaft. When needing to the aluminium alloy tubular column vision sampling, with the action of industrial control host computer 13 control cooperation arm 21, drive camera module 3 and carry out the regulation of three-dimensional space position with the multi-attitude, and the regulation of camera module 3's camera lens 321 multi-view shooting, meanwhile, utilize on the aluminium alloy tubular column support 41 actuating cylinder 4112 and driving motor 4115 to carry out the fine adjustment of centre gripping position and the micro-adjustment of aluminium alloy tubular column position, it is accurate to gather all screw hole positions on aluminium alloy tubular column top and aluminium alloy tubular column interlude screw position, whether correct and the interlude screw hole position is correct in all screw hole positions on top for judge according to the vision sampling result.

When the steering inner shaft needs to be visually sampled, the industrial control host 13 controls the action of the cooperative mechanical arm 21 to drive the camera module 3 to adjust the three-dimensional space position in multiple postures and adjust the multi-view shooting of the lens 321 of the camera module 3, meanwhile, the reversing shaft 424 on the inner shaft bracket 42 is utilized to drive the two support arms 421 to rotate in the axial direction of the steering inner shaft so as to switch different side surfaces to face the lens 321 of the camera module 3, and the acquisition of the threads on the steering inner shaft, the splines at the top end and the bottom end of the steering inner shaft, the lock catch on the steering inner shaft and the welding part is matched with the shooting of the lens 321 of the camera module 3, so as to judge whether the threads are arranged on the steering inner shaft, whether the splines are arranged at the top end of the steering inner shaft, whether the splines are arranged at the bottom end of the steering inner shaft, whether the lock catch on the steering inner shaft is arranged, and whether the welding on the steering inner shaft is correct according to the visual sampling result, furthermore, the utility model can realize the detection of the positions of the screw holes on the top surface, the side surface and the middle section of the aluminum alloy pipe column in the automobile steering assembly and the detection of the detection positions of the threads, the splines, the lock catches and the like of the steering inner shaft in the automobile steering assembly.

When the appearance detection device of the automobile steering assembly detects, a quality detector puts a workpiece to be detected in the workbench 11, the tool module 4 is fixed on the device main body 1 for tight fixation, and the fixed tool module 4 plays a role in fixing the workpiece to be detected. At this time, the quality inspection program is started, and the cooperative mechanical arm 21 drives the camera module 3 to complete the visual sampling of multiple postures (7-15 groups of postures in total, and the specific sampling posture definition depends on the model of the pipe column) within 20 seconds, and outputs the detection result to the display 14.

In the present invention, if an abnormal condition (such as a mechanical arm collision) is detected, the industrial personal computer 13 triggers an alarm to terminate the detection process.

In summary, compared with the conventional automobile steering shaft detection tool, the appearance detection device for the automobile steering assembly disclosed in the embodiment of the utility model skillfully utilizes the camera module 3 mounted at the tail end of the cooperative mechanical arm 21 to perform multi-pose and multi-angle vision acquisition, utilizes the fixed tool module 4 to fix the aluminum alloy pipe column and the inner shaft on the workbench 11, utilizes the camera module 3 to perform multi-pose vision detection in a short time, and cooperates with a computer vision algorithm to perform appearance quality detection on the automobile steering shaft, and is convenient and fast in detection operation without mounting a multi-position camera.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. An automobile steering assembly appearance detection device, comprising:

a device body (1), wherein the device body (1) is provided with a workbench (11) for detecting a steering shaft of an automobile;

the cooperative robot (2) comprises a cooperative mechanical arm (21) arranged on the device main body (1), and the cooperative mechanical arm (21) is used for adjusting the multi-posture position of the camera module (3);

the camera module (3) is arranged at the tail end of the cooperative mechanical arm (21) and is used for visually sampling an automobile steering shaft assembly arranged on the workbench (11); and

and the fixed tooling module (4) is arranged on the workbench (11), and the fixed tooling module (4) is used for fixing a workpiece to be tested of the automobile steering shaft assembly on the workbench (11).

2. The appearance inspection device of a steering assembly for a vehicle according to claim 1, wherein: the device main body (1) further comprises a work table support (12) bearing the work table (11) and the cooperative mechanical arm (21), wherein the cooperative mechanical arm (21) is provided with a balancing weight and is installed on the work table (11), or the cooperative mechanical arm (21) is installed on the work table support (12) above the work table (11) in a hanging mode.

3. The appearance detecting device of a steering assembly of an automobile according to claim 1 or 2, wherein: still include industry control host computer (13) and display (14) on device main part (1), industry control host computer (13) are used for controlling cooperation robot (2) and camera module (3) action, camera module (3) are still connected and are used for showing display (14) of vision sampling result.

4. The appearance inspection device of a steering assembly for a vehicle according to claim 1, wherein: the camera module (3) comprises:

the camera body (32), the camera body (32) is provided with a lens (321) for visual sampling;

the light source (33), the light source (33) is the annular light source, distribute along the circumference of lens (321) of the camera body (32); and

the camera module support (31) is installed at the tail end of the cooperative mechanical arm (21), and the camera module support (31) is compatible with camera bodies (32) of various models and light sources (33) to be installed.

5. The appearance inspection device of a steering assembly for a vehicle according to claim 1, wherein: the fixed tool module (4) comprises an aluminum alloy pipe column support (41) and an inner shaft support (42) which are suitable for workpieces to be tested of different models, and the aluminum alloy pipe column support (41) and the inner shaft support (42) are both located on the workbench (11).

6. The appearance inspection device of a steering assembly for a vehicle according to claim 5, wherein: the aluminum alloy pipe column support (41) comprises at least two clamping pieces (411), the clamping pieces (411) are distributed on the workbench (11), and an aluminum alloy pipe column used for fixing the automobile steering shaft is arranged between the clamping pieces (411).

7. The appearance inspection device of a steering assembly for a vehicle according to claim 6, wherein: the holder (411) includes:

the pressing end plate (4117), one side of the pressing end plate (4117) is provided with a propping surface (4118) which is butted with an aluminum alloy pipe column of the automobile steering shaft;

the piston rod (4113) is located on one side, far away from the abutting surface (4118), of the pressing end plate (4117), and the piston rod (4113) is used for driving the pressing end plate (4117) to move so that the clamping piece (411) clamps an aluminum alloy pipe column for fixing an automobile steering shaft;

the driving cylinder (4112) is connected with the piston rod (4113) to drive the piston rod (4113) to extend and retract; and

and the supporting block (4111), the supporting block (4111) is fixed on the workbench (11) and is used for supporting the driving cylinder (4112) and guiding the piston rod (4113).

8. The appearance inspection device of a steering assembly for a vehicle according to claim 7, wherein: the holder (411) further comprises:

the push block (4114) is installed at one end, close to the pressing end plate (4117), of the piston rod (4113);

the driving motor (4115) is installed on the push block (4114) and moves together with the push block (4114) when the piston rod (4113) stretches and retracts;

drive shaft (4116), drive shaft (4116) one end is connected with the motor shaft of driving motor (4115), and drive shaft (4116) other end is fixed compress tightly end plate (4117) and keep away from the one side that leans on face (4118).

9. The appearance inspection device of a steering assembly for a vehicle according to claim 6, wherein: aluminum alloy tubular column support (41) include three holder (411), holder (411) are the triangle-shaped and distribute on workstation (11), are used for the aluminum alloy tubular column of fixed car steering spindle between holder (411).

10. The visual inspection device for a steering assembly of an automobile according to claim 5, wherein: the inner shaft bracket (42) includes:

the device comprises two parallel supporting arms (421), wherein the supporting arms (421) are arranged on a coaxially arranged supporting shaft (422);

the bearing seats (423) are positioned at two ends of the bearing shaft (422) and are used for erecting the bearing arms (421) and bearing the rotation of the bearing shaft (422); and

and the reversing shaft (424) is coaxially connected with the bearing shaft (422) of the at least one supporting arm (421).

Images