CN217385247U

CN217385247U - Workpiece appearance detection device

Info

Publication number: CN217385247U
Application number: CN202220562490.4U
Authority: CN
Inventors: 李�昊; 王刚; 宋成福; 赫嘉琪; 黄良武
Original assignee: SAIC GM Wuling Automobile Co Ltd
Current assignee: SAIC GM Wuling Automobile Co Ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-09-06
Anticipated expiration: 2032-03-15

Abstract

The utility model discloses a detection apparatus for work piece outward appearance, production line department is located to the detection apparatus for work piece outward appearance, the production line is used for transporting the work piece, the production line is provided with first controller, the detection apparatus for work piece outward appearance includes the support frame, vision module and cooperation robot, be equipped with detection station on the support frame, detection station is used for placing the work piece, vision module includes communication connection's second controller and camera, the second controller is used for with first controller communication connection, and be used for controlling the camera to shoot and acquire and shoot the photo, cooperation robot locates on the support frame, and be used for with first controller communication connection, still be used for driving the relative support frame motion of camera, with shoot the work piece on the detection station. The utility model discloses a detection device of work piece outward appearance passes through robot drive camera and reachs detection station department to shoot through second controller control camera, judge whether qualified through shooting the photo work piece, thereby need not the manual observation work piece, make work piece detection efficiency high.

Description

Workpiece appearance detection device

Technical Field

The utility model relates to the field of assembly technique, especially, relate to a detection device of work piece outward appearance.

Background

With the continuous development of science and technology, automobiles enter thousands of households as transportation tools. Due to the large demand of automobiles, higher production efficiency is required for the production of automobiles. The production and detection of the engine are quite complex as important parts of an automobile, and at present, the appearance of the engine is often visually checked by manpower to detect whether neglected-installation parts exist, whether buckle leakage clamps exist, whether mounting holes are machined or not, and the like.

In view of the above-mentioned drawbacks, it is necessary to provide a new device for inspecting the appearance of a workpiece.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a detection device of work piece outward appearance aims at solving the problem of the inefficiency of work pieces that await measuring such as through artifical detection engine.

In order to realize the above-mentioned purpose, the utility model provides a detection device of work piece outward appearance locates production line department, the production line is used for transporting the work piece, the production line is provided with first controller, the detection device of work piece outward appearance includes support frame, vision module and cooperation robot, be equipped with detection station on the support frame, detection station is used for placing the work piece, vision module includes communication connection's second controller and camera, the second controller be used for with first controller communication connection, and be used for control the camera is shot and is acquireed and shoot the photo, cooperation robot locates on the support frame, and be used for with first controller communication connection, still be used for the drive the camera is relative the support frame motion, it is right with on the detection station the work piece is shot.

Preferably, the vision module further comprises a memory for storing a pre-stored picture, the memory is in communication connection with the second controller and is used for storing the shot picture, and the second controller is used for judging whether the workpiece is qualified or not by comparing the shot picture with the pre-stored picture.

Preferably, the cooperative robot comprises a driving mechanism, a mechanical arm and a third controller, the third controller is used for being connected with the first controller in a communication mode and controlling the driving mechanism to drive the mechanical arm to move relative to the supporting frame, and the camera is arranged on the mechanical arm.

Preferably, the support frame includes base, stand and crossbeam, the bottom of stand with the pedestal connection, the upper portion of stand with the crossbeam is connected, cooperation robot install in the crossbeam is kept away from the one end of stand, be equipped with on the base detect the station.

Preferably, the cross beam and the end connected with the upright post are provided with a connecting plate, the connecting plate is provided with a waist-shaped hole for a bolt to pass through, the length direction of the waist-shaped hole is arranged along the vertical direction, and the upright post is provided with a mounting hole corresponding to the waist-shaped hole.

Preferably, the bottom of crossbeam is equipped with the strengthening rib, the strengthening rib with the connecting plate deviates from one side of stand is connected.

Preferably, the base include the fixed station and respectively with fixed station swing joint's movable table and jacking actuating mechanism, the movable table is used for the bearing the work piece, jacking actuating mechanism is used for driving the movable table is relative the fixed station motion, in order to with the work piece is carried to detect the station.

Preferably, the movable table is provided with a positioning pin, the production line is provided with a tray, the tray is used for supporting the workpiece, and the tray is provided with a positioning hole matched with the positioning pin.

Preferably, the workpiece appearance detection device further comprises a human-computer interaction screen, wherein a mounting plate is arranged on the support frame, and the human-computer interaction screen is mounted on the mounting plate and is used for being in communication connection with the first controller;

preferably, the device for detecting the appearance of the workpiece further comprises an illuminating device, the illuminating device comprises an illuminating lamp and a light source controller, the illuminating lamp and the light source controller are in communication connection, the illuminating lamp is arranged at the detection station, and the light source controller is in communication connection with the first controller.

The utility model provides an among the technical scheme, production line department is located to the detection device of work piece outward appearance, the production line is used for transporting the work piece, the production line is provided with first controller, the detection device of work piece outward appearance includes the support frame, vision module and cooperation robot, be equipped with the detection station on the support frame, the detection station is used for placing the work piece, the vision module includes communication connection's second controller and camera, the second controller is used for with first controller communication connection, and be used for controlling the camera to shoot, cooperation robot locates on the support frame, and be used for with first controller communication connection, still be used for driving the relative support frame motion of camera, shoot to the work piece on the detection station. The utility model discloses a detection apparatus for work piece outward appearance passes through robot drive camera and reachs detection station department to shoot through second controller control camera, whether the position that awaits measuring of knowing the work piece through the result of shooting is qualified, thereby need not the manual work and observes the position that awaits measuring of work piece, makes the detection efficiency of work piece high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of a device for detecting the appearance of a workpiece according to an embodiment of the present invention;

fig. 2 is another schematic view of an angle structure of a device for detecting the appearance of a workpiece according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a device for detecting the appearance of a workpiece according to another embodiment of the present invention;

fig. 4 is a schematic view of another angle structure of a device for detecting the appearance of a workpiece according to another embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is a schematic cross-sectional view taken along line B-B of FIG. 4;

fig. 7 is an enlarged schematic view of C in fig. 6.

The reference numbers indicate:

reference numerals	Name (R)	Reference numerals	Name (R)
				1	Supporting frame	1411	Waist-shaped hole
11	Detection station	142	Reinforcing rib
				12	Base seat	15	Mounting plate
121	Fixing table	2	Vision module
				122	Movable table	21	Camera with a camera module
1221	Locating pin	3	Cooperative robot
				123	Jacking driving mechanism	31	Mechanical arm
13	Upright post	10	Production line
				14	Cross beam	101	Conveying belt
141	Connecting plate	102	Tray

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "secured" are to be construed broadly, and thus, for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be a mechanical connection or a communication connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

The utility model provides a detection apparatus for work piece outward appearance aims at solving the problem of the inefficiency of work pieces that await measuring such as through artifical detection engine.

Referring to fig. 1 to 3, a detection device for workpiece appearance is disposed near a production line 10 and used for detecting workpieces, the production line 10 is used for transporting workpieces, the production line 10 includes a first controller, the detection device for workpiece appearance includes a support frame 1, a vision module 2 and a cooperative robot 3, the support frame 1 is provided with a detection station 11, the detection station 11 is used for placing workpieces, the vision module 2 includes a second controller and a camera 21 which are in communication connection, the second controller is used for being in communication connection with the first controller and controlling the camera 21 to shoot and obtain shot photos, the cooperative robot 3 is disposed on the support frame 1 and used for being in communication connection with the first controller and also used for driving the camera 21 to move relative to the support frame 1 so as to shoot the workpieces on the detection station 11.

The utility model discloses a detection device of work piece outward appearance locates near production line 10 and is used for detecting the work piece, the work piece can be the engine, production line 10 is used for transporting the work piece, production line 10 includes first controller, detection device of work piece outward appearance includes support frame 1, vision module 2 and cooperation robot 3, be equipped with detection station 11 on the support frame 1, detection station 11 is used for placing the work piece, vision module 2 includes communication connection's second controller and camera 21, the second controller is used for with first controller communication connection, and be used for controlling camera 21 and shoot, cooperation robot 3 locates on the support frame 1, and be used for with first controller communication connection, still be used for driving camera 21 relative support frame 1 motion, in order to shoot the work piece on the detection station 11. The utility model discloses a detection device of work piece outward appearance passes through robot drive camera 21 and reachs 11 departments of detection station to shoot through second controller control camera 21, whether the position that awaits measuring of work piece is known through the result of shooting is qualified, thereby need not the manual work and observe the position that awaits measuring of work piece, make the detection efficiency of work piece high. The detected items are as follows: the engine oil rule is not installed to the bottom, the buckle of the water outlet hose is not clamped in place, the etching codes are pasted reversely, the engine oil pressure switch is mistakenly installed in a cylinder hole, the stud at the flange end of the exhaust manifold is missed and installed, the engine oil filling port cover is not rotated in place, and the like. Moreover, in order to ensure that the lens of the camera 21 is focused clearly and the photographed image is easy to recognize, the photographing track can be obtained by teaching each coordinate point of the cooperative robot 3, and the corresponding photographing track can be directly called during photographing. It should be noted that all communication connections of the present invention belong to the prior art.

In an embodiment, the vision module 2 further includes a memory storing a pre-stored photo, the memory is in communication connection with the second controller and is used for storing the shot photo, and the second controller is used for judging whether the workpiece is qualified by comparing the shot photo with the pre-stored photo. The memory stores the shot pictures, which is beneficial to establishing a product defect atlas, accumulating failure mode experience, improving the online monitoring quality of the engine and realizing the traceability of defect data. The second controller compares the shot picture with a pre-stored picture through image processing tools such as gray level matching, shape matching and the like, so that product defect detection is realized. And moreover, the detection equipment replaces manual detection, and space for process optimization and post reduction is reserved. The detection steps are as follows: the engine gets into detection station 11, the model information of engine is discerned to first controller, cooperation robot 3 calls the shooting orbit program that this model corresponds, reach each teaching coordinate position in proper order, trigger camera 21 through the second controller and shoot, the second controller is compared with the picture of prestoring according to shooting the picture and is accomplished the judgement, and send the judged result to first controller, can be qualified result and send to first controller, also can be unqualified result and send to first controller, when there is unqualified result, first controller sends out the police dispatch newspaper through the alarm device on the control production line 10.

Further, the cooperative robot 3 includes a driving mechanism, a mechanical arm 31 and a third controller, the third controller is used for being connected with the first controller in a communication mode and controlling the driving mechanism to drive the mechanical arm 31 to move relative to the support frame 1, and the camera 21 is arranged on the mechanical arm 31. When a workpiece needs to be detected, the driving mechanism drives the mechanical arm 31 to move relative to the support frame 1, and the camera 21 arranged on the mechanical arm 31 can be taken to each detection station 11 for shooting. The robot arm 31 may employ a six-axis robot arm 31 so that the camera 21 can be driven to perform inspection around the surface of the workpiece.

Additionally, in one embodiment, the second controller is communicatively coupled to the first controller via a TCP/IP protocol. When the first controller on the production line 10 is a PLC, the communication connection between the second controller and the first controller may be connected via a TCP/IP protocol, thereby facilitating adaptation to the first controller on the production line 10. Similarly, in another embodiment, the third controller is communicatively connected to the first controller via a MODBUS/TCP protocol, which is not described herein again.

The support frame 1 comprises a base 12, a stand column 13 and a cross beam 14, the bottom of the stand column 13 is connected with the base 12, the upper portion of the stand column 13 is connected with the cross beam 14, the cooperation robot 3 is installed at one end, far away from the stand column 13, of the cross beam 14, and a detection station 11 is arranged on the base 12. In one embodiment, the cross beam 14 is arranged above the base 12, two ends of the upright column 13 are respectively connected with the cross beam 14 and the base 12, the upright column 13 and the cross beam 14 enclose the C-shaped support frame 1, the structure is compact, the cooperative robot 3 is arranged on the cross beam 14, the base 12 is provided with the detection station 11, a workpiece is placed on the detection station 11 of the base 12, and the cooperative robot 3 drives the camera 21 to detect the workpiece on the detection station 11.

Further, in order to realize multiple functions, a connecting plate 141 is arranged at one end of the cross beam 14 connected with the upright column 13, a kidney-shaped hole 1411 for a bolt to pass through is formed in the connecting plate 141, the length direction of the kidney-shaped hole 1411 is arranged along the vertical direction, and a mounting hole corresponding to the kidney-shaped hole 1411 is formed in the upright column 13. In order to enable the height of the cross beam 14 to be adjustable, the connection between the cross beam 14 and the upright column 13 can be set to be detachable, namely, one end of the cross beam 14 connected with the upright column 13 is provided with a connecting plate 141, the connecting plate 141 is provided with a waist-shaped hole 1411, the length direction of the waist-shaped hole 1411 is consistent with the vertical direction, the upright column 13 is provided with a mounting hole, during mounting, a bolt only needs to penetrate through the waist-shaped hole 1411 and be screwed into the mounting hole, the cross beam 14 and the upright column 13 can be firmly connected, when the height of the cross beam 14 needs to be adjusted, the bolt only needs to be unscrewed, and the height of the cross beam 14 can be adjusted by adjusting the height of the waist-shaped hole 1411 along the vertical direction.

In addition, in the above embodiment, the bottom of the cross beam 14 is provided with the reinforcing rib 142, and the reinforcing rib 142 is connected with the side of the connecting plate 141 away from the upright 13. In order to improve the structural strength and rigidity of the support frame 1, reinforcing ribs 142 can be arranged between the upright post 13 and the cross beam 14 and between the upright post 13 and the base 12, and since the cross beam 14 is subjected to the self-gravity and the acting force of the cooperative robot 3, the reinforcing ribs 142 are arranged at the joint of the cross beam 14 and the upright post 13 and are positioned at the bottom of the cross beam 14, so that the bearing capacity of the cross beam 14 can be enhanced.

In an embodiment, referring to fig. 4 and 5, the base 12 includes a fixed table 121, and a movable table 122 and a lifting driving mechanism 123 movably connected to the fixed table 121, respectively, where the movable table 122 is used for supporting the workpiece, and the lifting driving mechanism 123 is used for driving the movable table 122 to move relative to the fixed table 121 so as to convey the workpiece to the inspection station 11. When a workpiece is conveyed to the workpiece appearance detection device by the conveyor belt 101 of the production line 10, the fixed table 121 of the base 12 is located below the conveyor belt 101, when the workpiece is conveyed to the workpiece appearance detection device, the lifting driving mechanism 123 drives the movable table 122 to move relative to the fixed table 121, and when the top of the movable table 122 is higher than the conveyor belt 101, the movable table 122 lifts the workpiece on the conveyor belt 101 upwards, so that the workpiece reaches the detection station 11, and the consistency of taking pictures of the workpiece by the camera 21 is improved.

Further, referring to fig. 6 and fig. 7, a positioning pin 1221 is disposed on the movable table 122, a tray 102 is disposed on the production line 10, the tray 102 is used for supporting the workpiece, and the tray 102 is provided with a positioning hole matched with the positioning pin 1221. In order to enable the workpiece on the tray 102 to accurately reach the detection station 11, a plurality of positioning pins 1221 are arranged on the movable table 122 at intervals, and the tray 102 is positioned through the positioning pins 1221, specifically, when the tray 102 reaches the detection device of the workpiece appearance, the jacking driving mechanism 123 drives the movable table 122 to move relative to the fixed table 121, and the positioning pins 1221 on the movable table 122 are inserted into corresponding positioning holes on the tray 102 from bottom to top, so that the tray 102 is positioned first, and along with the continuous rising of the movable table 122, the tray 102 is difficult to move relative to the movable table 122, and further, the workpiece on the tray 102 can accurately reach the detection station 11.

In addition, in an embodiment, the device for detecting the appearance of the workpiece further comprises a human-computer interaction screen, the mounting plate 15 is arranged on the support frame 1, and the human-computer interaction screen is mounted on the mounting plate 15 and is used for being in communication connection with the first controller. Various switch buttons are arranged on the human-computer interaction screen, such as a start button, a close button, an emergency stop button and the like, and the human-computer interaction screen is arranged on the support frame 1 and can be operated conveniently.

In another embodiment, the device for detecting the appearance of the workpiece further comprises a lighting device, wherein the lighting device comprises a lighting lamp and a light source controller which are in communication connection, the lighting lamp is arranged at the detection station 11, and the light source controller is used for being in communication connection with the first controller. In order to make the camera 21 shoot the work piece more clear, can set up the light in detection station 11 department, adjust the illuminating effect of light through light source controller, adjust like light and shade or light colour etc to make the position that needs to shoot on the work piece stand out in the photo that camera 21 shot, be convenient for with the contrast of prestore photo.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. The utility model provides a detection device of work piece outward appearance, locates production line department, the production line is used for transporting the work piece, the production line is provided with first controller, its characterized in that, detection device of work piece outward appearance includes:

the support frame is provided with a detection station, and the detection station is used for placing the workpiece;

the vision module comprises a second controller and a camera which are in communication connection, the second controller is used for being in communication connection with the first controller and controlling the camera to shoot and obtain shot pictures;

the cooperative robot is arranged on the support frame, is in communication connection with the first controller, and is further used for driving the camera to move relative to the support frame so as to shoot the workpiece on the detection station.

2. The apparatus for inspecting the appearance of a workpiece according to claim 1, wherein the vision module further comprises a memory storing a pre-stored picture, the memory is communicatively connected to the second controller and is configured to store the shot picture, and the second controller is configured to determine whether the workpiece is acceptable by comparing the shot picture with the pre-stored picture.

3. The apparatus for inspecting the appearance of a workpiece according to claim 1, wherein said cooperative robot comprises a driving mechanism, a robot arm, and a third controller, said third controller is configured to be communicatively connected to said first controller and configured to control said driving mechanism to drive said robot arm to move relative to said supporting frame, and said camera is disposed on said robot arm.

4. The workpiece appearance detection device according to any one of claims 1 to 3, wherein the support frame comprises a base, a stand column and a cross beam, the bottom of the stand column is connected with the base, the upper part of the stand column is connected with the cross beam, the cooperative robot is mounted at one end of the cross beam far away from the stand column, and the detection station is arranged on the base.

5. The workpiece appearance detection device according to claim 4, wherein a connecting plate is arranged at one end of the cross beam connected with the upright post, a kidney-shaped hole for a bolt to pass through is formed in the connecting plate, the length direction of the kidney-shaped hole is arranged along the vertical direction, and a mounting hole corresponding to the kidney-shaped hole is formed in the upright post.

6. The apparatus for inspecting the appearance of a workpiece as set forth in claim 5, wherein a bottom portion of said cross member is provided with a reinforcing rib connected to a side of said connecting plate facing away from said vertical column.

7. The apparatus according to claim 4, wherein the base comprises a fixed table, and a movable table and a lift-up driving mechanism movably connected to the fixed table, respectively, wherein the movable table is used for supporting the workpiece, and the lift-up driving mechanism is used for driving the movable table to move relative to the fixed table so as to convey the workpiece to the inspection station.

8. The apparatus for inspecting the appearance of a workpiece according to claim 7, wherein the movable stage is provided with a positioning pin, the production line is provided with a tray for supporting the workpiece, and the tray is provided with a positioning hole for engaging with the positioning pin.

9. The apparatus for detecting the appearance of a workpiece according to any one of claims 1 to 3, further comprising a human-computer interaction screen, wherein a mounting plate is disposed on the supporting frame, and the human-computer interaction screen is mounted on the mounting plate and is configured to be in communication with the first controller.

10. The apparatus for inspecting the appearance of a workpiece according to any one of claims 1 to 3, further comprising an illumination device including a lamp and a light source controller, the lamp being communicatively connected to the inspection station, the light source controller being communicatively connected to the first controller.