CN111855575A

CN111855575A - Visual detection equipment

Info

Publication number: CN111855575A
Application number: CN202010776796.5A
Authority: CN
Inventors: 陈其涛; 薛春花; 刘志永; 林淼; 陈志列
Original assignee: EVOC Intelligent Technology Co Ltd
Current assignee: EVOC Intelligent Technology Co Ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2020-10-30

Abstract

The invention provides visual detection equipment which comprises a first supporting piece and two first guide rails, wherein the first supporting piece is positioned above a workpiece of an assembly line, the two first guide rails are respectively arranged on two sides of the assembly line and extend along the vertical direction, a camera assembly for visually detecting the workpiece is arranged on the first supporting piece, and two ends of the first supporting piece are respectively assembled on the two first guide rails in a sliding mode. The first support is arranged on the two first guide rails, and the first support is arranged on the two first guide rails. The two first guide rails are respectively arranged on two sides of the assembly line and extend along the conveying direction of the assembly line, and the two first guide rails are respectively assembled on the pair of second guide rails in a sliding mode. The camera component is adjusted to lift through the first driving mechanism, and is locked at the position through the first locking mechanism, so that the camera component can automatically move and be fixed in the Z-axis direction.

Description

Visual detection equipment

Technical Field

The invention relates to the technical field of machine vision, in particular to a visual detection device.

Background

At present, machine vision is widely applied to various industries and fields such as industry, agriculture, military, aerospace, medicine, astronomy, traffic, scientific research and the like. Especially in the detection of industrial products, no matter in manufacturing cost, in detection quality and efficiency, compare the limitation that detects by manual work, visual inspection equipment all has promotion to a great extent. The visual detection equipment shoots a picture of a part to be detected through a camera in the visual detection equipment, and analyzes a detection image through software to obtain a result.

The visual inspection equipment in the prior art comprises a camera which is positioned above a workpiece and used for scanning the workpiece to perform visual inspection, and in the inspection process, an inspector needs to hold the camera with hands to lift or lower the camera, so that the camera reaches a proper view field size and a proper focal length. In this process, it is time consuming and laborious and difficult to adjust inside the device, since it is necessary to support the camera by hand by a worker.

Disclosure of Invention

The invention provides a visual detection device, which is used for solving the problem that a camera of the existing device needs to be manually supported to be lifted and lowered when moving and fixing in the Z-axis direction, and realizing automatic adjustment of the lifting of the camera.

The invention provides a visual detection device, which is used for detecting workpieces on a production line and comprises a first supporting piece and two first guide rails, wherein the first supporting piece is positioned above the workpieces on the production line, the two first guide rails are respectively arranged on two sides of the production line and extend along the vertical direction, a camera assembly for visually detecting the workpieces is arranged on the first supporting piece, and two ends of the first supporting piece are respectively assembled on the two first guide rails in a sliding mode. The visual inspection apparatus further includes a first driving mechanism for driving the first support to slide on the two first rails, and a first locking mechanism for locking the first support to the two first rails. The two first guide rails are respectively arranged on two sides of the assembly line and extend along the conveying direction of the assembly line, and the supporting frame body is used for fixing the pair of second guide rails, wherein the two first guide rails are respectively assembled on the pair of second guide rails in a sliding mode.

In the above scheme, by providing the first driving mechanism for driving the first support to slide on the first guide rail and the first locking mechanism, when the camera module is applied, the camera module can be adjusted to ascend and descend by the first driving mechanism, and when the camera module slides to a position convenient for visual detection, the camera module can be locked at the position by the first locking mechanism. Compared with the prior art, the camera assembly moving and fixing device has the advantages that the camera does not need to be manually supported to move and fix in the Z-axis direction, the camera can be adjusted in the vertical direction through the first driving mechanism, and when the distance is properly adjusted, the camera can be fixed in position through the first locking mechanism, so that time and labor are saved, personnel debugging is facilitated, and the camera assembly can automatically move and fix in the Z-axis direction.

In a specific embodiment, the first support member is a rod structure, two ends of the rod structure are fixedly connected with a first support plate respectively, each first support plate is fixedly connected with a first slide block, and the two first slide blocks are slidably assembled on the two first guide rails respectively.

In a specific embodiment, the first driving mechanism comprises a first transmission screw rod parallel to the extending direction of the first guide rail and two first fixed seats respectively rotatably connected with the first transmission screw rod, and the two first fixed seats are fixedly connected with one of the two first guide rails; still including the first transmission nut seat of suit on first transmission screw, and first backup pad and first transmission nut seat fixed connection. So as to simplify the structure of the first driving mechanism and facilitate the arrangement.

In a particular embodiment, the visual inspection apparatus further comprises: and the second supporting piece is positioned above the workpiece of the assembly line, a light source assembly for illuminating the workpiece is arranged on the second supporting piece, and two ends of the second supporting piece are respectively assembled on the two first guide rails in a sliding manner. The visual inspection apparatus further includes a second driving mechanism for driving the second support member to slide on the two first guide rails, and a second locking mechanism for locking the second support member on the two first guide rails. The second driving mechanism is arranged to drive the light source to move up and down, so that the workpiece can be illuminated to a state more suitable for detection of the camera without supporting the light source by hands to adjust up and down; and after the light source moves to a proper position, the second supporting piece is locked on the first guide rail through the second locking mechanism, so that time and labor are saved, and the debugging of personnel is facilitated.

In a specific embodiment, the second supporting member is a rectangular frame, a pair of opposite side frames in the frame are fixedly connected with a second supporting plate respectively, each second supporting plate is fixedly connected with a second sliding block, and the two second sliding blocks are slidably assembled on the two first guide rails.

In a specific embodiment, an angle-adjustable strip-shaped light source is arranged on each frame of the other pair of frames which are opposite in position in the frame, so that the workpiece with larger size can be conveniently detected by adjusting the angle of the strip-shaped light source.

In a specific embodiment, two adapter plates are fixedly connected to each frame of the other pair of frames, and two ends of the strip-shaped light source are respectively rotatably connected with the two adapter plates; the adapter plate is further provided with an arc line hole, and a locking screw used for locking the bar-shaped light source at a set angle is arranged on the arc line hole, so that the adjustment of the bar-shaped light source is simplified, and the bar-shaped light source is conveniently locked at the set angle.

In one particular embodiment, the second drive mechanism comprises: the second transmission screw rod is parallel to the extending direction of the first guide rail and located below the first transmission screw rod, the two second fixing seats are rotatably connected with the second transmission screw rod, and the second transmission nut seat is sleeved on the second transmission screw rod. The two second fixed seats are fixedly connected with one of the two first guide rails, and the two first fixed seats are fixedly connected with the two second fixed seats and the same one of the two first guide rails; the second support plate is fixedly connected with the second transmission nut seat. So as to simplify the structure of the second driving mechanism and facilitate the arrangement.

In a specific embodiment, each of the first and second drive screws is provided with a hand wheel for driving the corresponding drive screw to rotate, so that a worker can drive the first and second drive screws to drive the drive.

In a particular embodiment, the visual inspection apparatus further comprises a third drive mechanism comprising: the two third fixing seats are arranged on each of the two second guide rails, the transmission shaft is rotatably connected with the two third fixing seats, and the motor is arranged on one of the two second guide rails and used for driving the transmission shaft to rotate. A driving belt is also assembled on each second guide rail, and the driving belt on each second guide rail is fixedly connected with the first guide rail on the second guide rail. The transmission shaft is sleeved with two driving pulleys which are fixedly connected with the transmission shaft, and the two driving pulleys are used for driving two transmission belts to advance respectively. The single motor is adopted to drive the two first guide rails to slide on the two second guide rails through the transmission shaft and the transmission belt, so that the synchronous motion of the two first guide rails can be ensured, the problems of motion lag and shell clamping caused by the fact that the single guide rail is adopted for driving and the other guide rail is unpowered can be avoided, the failure probability of the device is reduced, and the stability and the reliability of the visual detection equipment are improved.

Drawings

Fig. 1 is a schematic structural diagram of a visual inspection apparatus according to an embodiment of the present invention;

FIG. 2 is a partial schematic view of a visual inspection apparatus according to an embodiment of the present invention;

FIG. 3 is a partial schematic view of another portion of a visual inspection apparatus provided in accordance with an embodiment of the present invention;

fig. 4 is a schematic structural view of an arc hole provided in an embodiment of the present invention;

fig. 5 is a schematic view of a visual inspection apparatus in a top view according to an embodiment of the present invention.

Reference numerals:

10-assembly line 11-workpiece 20-support frame 21-first guide rail 22-second guide rail

31-first sliding block 32-second sliding block 33-third sliding block 41-first fixed seat 42-second fixed seat

43-third fixed seat 51-first transmission screw 511-first hand wheel 52-second transmission screw

521-the second hand wheel 61-the first drive nut seat 62-the second drive nut seat 71-the first support

711-camera assembly 72-second support 721-bar light source

722-arc hole 81-motor 82-transmission shaft 83-coupler

91-first locking mechanism 92-second locking mechanism

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

To facilitate understanding of the visual inspection apparatus provided in the embodiment of the present invention, an application scenario of the visual inspection apparatus provided in the embodiment of the present invention is first described below, where the visual inspection apparatus is applied to an inspection process in a production line manufacturing process for inspecting workpieces such as televisions, display screens, and the like on a production line. The visual inspection apparatus will be described in detail with reference to the accompanying drawings.

Referring to fig. 1, 2 and 3, the visual inspection apparatus according to the embodiment of the present invention includes a first support 71 located above the workpiece 11 of the production line 10, and two first guide rails 21 respectively arranged at two sides of the production line 10 and extending in an up-down direction, wherein a camera assembly 711 for visually inspecting the workpiece 11 is disposed on the first support 71, and two ends of the first support 71 are respectively slidably mounted on the two first guide rails 21. The visual inspection apparatus further includes a first driving mechanism for driving the first support 71 to slide on the two first rails 21, and a first locking mechanism 91 for locking the first support 71 on the two first rails 21. The device further comprises two second guide rails 22 which are respectively arranged at two sides of the assembly line 10 and extend along the conveying direction of the assembly line 10, and a supporting frame body 20 which fixes the pair of second guide rails 22, wherein the two first guide rails 21 are respectively assembled on the pair of second guide rails 22 in a sliding mode.

In the above-described scheme, by providing the first driving mechanism that drives the first support 71 to slide on the first guide rail 21, and the first locking mechanism 91, when in use, the elevation of the camera assembly 711 can be adjusted by the first driving mechanism, and when the camera assembly 711 slides to a position that is convenient for visual detection, the camera assembly 711 can be locked at the position by the first locking mechanism 91. Compared with the prior art, the camera assembly moving and fixing device has the advantages that the camera does not need to be manually supported to move and fix in the Z-axis direction, the camera can be adjusted in the vertical direction through the first driving mechanism, and when the distance is properly adjusted, the camera can be fixed in position through the first locking mechanism 91, so that time and labor are saved, personnel debugging is facilitated, and the camera assembly can automatically move and fix in the Z-axis direction. The above components will be described in detail with reference to the accompanying drawings.

Referring to fig. 1, the support frame 20 serves as a support structure, and the flow line 10 passes through the inside of the support frame 20. Two second guide rails 22 are provided on the support frame 20, and the two second guide rails 22 are arranged on both sides of the line 10, and the extending direction of each of the two second guide rails 22 is parallel to the conveying direction of the line 10. One first rail 21 is slidably mounted on each of two second rails 22 such that the two first rails 21 are arranged on both sides of the line 10. Referring to fig. 1 and 2, each second rail 22 is slidably mounted with a third sliding block 33, and each third sliding block 33 is fixedly connected to the first rail 21 by fastening screws, clamping, welding, or the like, so that the first rail 21 is slidably mounted on the second rail 22. Specifically, a support plate may be fixedly connected to each third slider 33, and each first rail 21 may be fixed to the support plate corresponding to the rail.

A first support 71 is slidably mounted between the two first guide rails 21, the first support 71 is located above the workpiece 11 on the production line 10, and a camera assembly 711 is disposed on the first support 71 for visually inspecting the workpiece 11 on the production line 10.

When the first supporting member 71 is disposed, referring to fig. 1, fig. 2 and fig. 3, the first supporting member 71 may be a rod structure, two ends of the rod structure are respectively provided with a first supporting plate, and the first supporting plate is fixedly connected to two ends of the rod structure by fastening with screws, welding, clamping, and the like. Each first support plate is fixedly connected with a first sliding block 31 through screw fastening, welding, clamping and the like, and the two first sliding blocks 31 are respectively assembled on the two first guide rails 21 in a sliding manner. The camera module 711 includes a camera disposed on the rod structure, and the camera is fixed to the rod structure through a bracket, an adapter plate, and the like.

Referring to fig. 1, 2 and 3, a first driving mechanism for driving the first support 71 to slide on the two first rails 21 is further disposed on the first rails 21, and the first driving mechanism can adjust the elevation of the camera module 711. When the first driving mechanism is arranged, the first driving mechanism may include a first transmission screw 51 parallel to the extending direction of the first guide rail 21, and two first fixing seats 41 respectively rotatably connected to the first transmission screw 51, and the two first fixing seats 41 are fixedly connected to one of the two first guide rails 21; still including the suit first transmission nut seat 61 on first transmission lead screw 51, and first backup pad and first transmission nut seat 61 fixed connection. So as to simplify the structure of the first driving mechanism and facilitate the arrangement. The two first fixing seats 41 may be fixedly connected to the first guide rail 21 through an adapter plate, or may be fixedly connected to a corresponding support plate of the first guide rail 21 through an adapter plate. Referring to fig. 2 and 3, the first driving screw 51 may be provided with a first hand wheel 511 for driving the corresponding driving screw to rotate, so that the worker drives the first driving screw 51 and the second driving screw 52 to drive. In use, the worker adjusts the elevation of the camera assembly 711 by rotating the first handwheel 511. For example, it can be arranged that when the first hand wheel 511 is rotated to rotate the first driving screw 51 clockwise, the first driving nut seat 61 on the first driving screw 51 moves upward to drive the first supporting plate and the first sliding block 31 to slide upward along the first guiding rail 21, otherwise, the first driving nut seat slides downward to drive the camera assembly 711 to move. Thereby when the camera of having solved current equipment was at the ascending removal of Z axle direction, need the artificial problem of lifting and descending of holding in the palm, through rotating first hand wheel 511, adjust labour saving and time saving, the personnel's of being convenient for debugging.

Referring to fig. 1, 2 and 3, a first locking mechanism 91 for locking the first support 71 on the two first guide rails 21 is further disposed on the first lead screw 51 or the first slider 31, and when the camera module 711 slides to a position convenient for visual detection, the camera module 711 can be locked at the position through the first locking mechanism 91, so that the camera module 711 can be conveniently fixed in position, and thus time, labor and personnel can be conveniently debugged. When the first locking mechanism 91 is arranged, the first locking mechanism 91 can be a set screw, and a set screw can be arranged on the first transmission nut seat 61, or a set screw is arranged on the first sliding block 31, when the camera component 711 needs to be adjusted to move up and down, the set screw is loosened, and the first hand wheel 511 is driven to rotate so as to perform adjustment; when the camera module 711 needs to be fixed, the set screw is tightened to fix the camera module 711 at a set position.

It should be noted that the arrangement of the first driving mechanism and the first locking mechanism 91 is not limited to the above-described arrangement, and other arrangement that can drive the camera module 711 to move up and down or lock at a set position may be adopted.

Referring to fig. 1, 2 and 3, the visual inspection apparatus may further include: and a second support 72 located above the workpiece 11 of the production line 10, wherein the second support 72 is provided with a light source assembly for illuminating the workpiece 11, and two ends of the second support 72 are respectively slidably assembled on the two first guide rails 21. There are further provided a second driving mechanism for driving the second support 72 to slide on the two first rails 21, and a second locking mechanism 92 for locking the second support 72 on the two first rails 21. The second driving mechanism is arranged to drive the light source to move up and down, so that the workpiece 11 can be illuminated to a state more suitable for detection of the camera without holding the light source by hand to adjust up and down; and after the light source moves to the proper position, the second supporting piece 72 is locked on the first guide rail 21 through the second locking mechanism 92, so that time and labor are saved, and the debugging of personnel is facilitated.

When the second supporting member 72 is disposed, referring to fig. 1, fig. 2, fig. 3 and fig. 5, the second supporting member 72 may be a rectangular frame, a pair of frames opposite to each other in the frame are respectively and fixedly connected with a second supporting plate, each second supporting plate is fixedly connected with one second sliding block 32 by fastening screws, clamping, welding, and the like, and the two second sliding blocks 32 are slidably assembled on the two first guide rails 21.

Referring to fig. 2, 3 and 4, an angle-adjustable bar light source 721 is disposed on each of the other pair of frames opposite to each other in the frame, so as to facilitate the detection of the workpiece 11 with a larger size by adjusting the angle of the bar light source 721. When the light source module is arranged, each frame of the other pair of frames is fixedly connected with two adapter plates in a screw fastening, clamping, welding and other modes, and two ends of the strip-shaped light source 721 are respectively in rotating connection with the two adapter plates; the adapter plate is further provided with an arc line hole 722, and a locking screw for locking the bar-shaped light source 721 at a set angle is arranged on the arc line hole 722, so that the adjustment of the bar-shaped light source 721 is simplified, and the bar-shaped light source 721 is conveniently locked at the set angle. The strip light source 721 can be a diode, a strip lamp, etc. commonly known in the art.

When the second driving mechanism is provided, the second driving mechanism may include: the second driving screw 52 is parallel to the extending direction of the first guide rail 21 and located below the first driving screw 51, the two second fixing seats 42 rotatably connected with the second driving screw 52, and the second driving nut seat 62 sleeved on the second driving screw 52. The two second fixing seats 42 are fixedly connected with one of the two first guide rails 21, and the two first fixing seats 41 and the two second fixing seats 42 are fixedly connected with the same one of the two first guide rails 21; the second support plate is fixedly connected to the second drive nut mount 62. So as to simplify the structure of the second driving mechanism and facilitate the arrangement. Specifically, the second driving screw 52 and the first driving screw 51 are located on the same side of the production line 10, and the second fixing seat 42 and the first fixing seat 41 are located on the same side of the production line 10, so as to improve the compactness of the structure and reduce the occupied space. The two second fixing seats 42 are located below the two first fixing seats 41, so that the second drive screw 52 is located below the first drive screw 51, and the first slider 31 and the second slider 32 are driven to slide on the first guide rail 21 without interference. The second fixing seat 42 may be fixedly connected to the first guide rail 21 through an adapter plate, or may be fixedly connected to a corresponding support plate of the first guide rail 21 through an adapter plate. One of the second fixing seats 42 located above can be arranged adjacent to the first fixing seat 41 located below in the first fixing seat 41, and the extending directions of the first transmission screw 51 and the second transmission screw 52 are located on the same straight line, so as to improve the compactness.

Referring to fig. 2 and 3, a second wheel 521 for driving the corresponding driving screw to rotate may be disposed on the first driving screw 51, so that the worker drives the second driving screw 52 to drive. When provided, the second hand wheel 521 may be disposed below the second drive screw 52 to facilitate the rotation of the second hand wheel 521 by the worker.

When the second locking mechanism 92 is arranged, the second locking mechanism 92 may be a set screw, and a set screw may be arranged on the second transmission nut seat 62, or a set screw may be arranged on the second slider 32, and when the light source assembly needs to be adjusted to move up and down, the set screw is loosened to drive the second hand wheel 521 to rotate, so as to perform adjustment; when the light source needs to be fixed, the set screw is screwed down to fix the light source component at the set position. Through second locking mechanical system 92 with the light source subassembly locking in this position, conveniently carry out the rigidity to the light source subassembly to labour saving and time saving, personnel's of being convenient for debugging.

Referring to fig. 1, 2 and 5, the visual inspection apparatus may further include a third driving mechanism that drives the two first guide rails 21 to synchronously slide on the two second guide rails 22. Specifically, when the third driving mechanism is provided, referring to fig. 1, fig. 2 and fig. 5, the third driving mechanism may include: two third fixing seats 43 disposed on each of the two second guide rails 22, a transmission shaft 82 rotatably connected to the two third fixing seats 43, and a motor 81 disposed on one of the two second guide rails 22 and configured to drive the transmission shaft 82 to rotate. A belt is also fitted on each second rail 22, and the belt on each second rail 22 is fixedly connected to the first rail 21 on that second rail 22. The transmission device further comprises two driving pulleys which are sleeved on the transmission shaft 82 and fixedly connected with the transmission shaft 82, and the two driving pulleys are used for driving two transmission belts to move forward respectively. The single motor 81 is adopted to drive the two first guide rails 21 to respectively slide on the two second guide rails 22 through the transmission shaft 82 and the transmission belt, so that the synchronous motion of the two first guide rails 21 can be ensured, the problems of motion lag and shell clamping caused by the driving of the single guide rail and the unpowered of the other guide rail can be avoided, the failure probability of the device is reduced, and the stability and the reliability of the visual detection equipment are improved.

Specifically, each second guide rail 22 is provided with one third fixing seat 43, and a transmission shaft 82 is rotatably connected between the two third fixing seats 43. An electric motor 81 is disposed on one of the second guide rails 22, and an output shaft of the electric motor 81 drives the transmission shaft 82 to rotate through a gear transmission, a belt transmission, a chain transmission or the like. In each second guide rail 22 a belt is fitted, which belt can be embedded between the second guide rail 22 and the first guide rail 21 and can move relative to the second guide rail 22. And the transmission belt on each second guide rail 22 is fixedly connected with the first guide rail 21 on the second guide rail 22, specifically, the transmission belt can be fixedly connected with a third slide block 33 which is slidably assembled on the second guide rail 22, and the third slide block 33 can be fixedly connected with the first guide rail 21 through a support plate, so that when the transmission belt moves relative to the second guide rail 22 along a direction parallel to the conveying direction of the production line 10, the third slide block 33 can be driven to move on the second guide rail 22, and the first guide rail 21 is driven to slide on the second guide rail 22. The end part of the transmission shaft 82 rotatably connected with the third fixing seat 43 is connected with a driving pulley through a coupling 83, the transmission belt on each second guide rail 22 is sleeved on the driving pulley corresponding to the second guide rail 22, when the transmission shaft 82 rotates, the transmission shaft 82 can drive the two driving pulleys to synchronously rotate, so that the two driving pulleys respectively drive the third sliding blocks 33 on the second guide rails 22 to slide, and the two first guide rails 21 are driven to synchronously slide on the two second guide rails 22 respectively. The problems of motion lag and shell clamping caused by the fact that a single guide rail is adopted for driving and the other guide rail is unpowered can be avoided, the probability of failure of the device is reduced, and the stability and reliability of the visual detection equipment are improved.

In addition, a driver may be provided, the driver is connected to the motor 81, and the driver is connected to the I \ O of the motion control card, and controls the motion of the motor 81 through a driving program configured on the motion control card, so as to drive the first rail 21 to slide on the second rail 22.

A control and analysis system may also be provided, which is connected to the camera module 711, so that the images taken by the camera module 711 are transmitted to the control and analysis system, and are analyzed by software, thereby completing the detection of the workpiece 11.

With the visual inspection apparatus as described above, the camera module 711 and the bar light source 721 module can be manually adjusted to desired positions by the first driving mechanism and the second driving mechanism according to the size, position, and angle of the workpiece 11 to be tested by the visual inspection apparatus. Then, the camera module 711 is locked at a position with a proper view field size and a proper focal length by the first locking mechanism 91 and the second locking mechanism, so that the precision requirement of the detection product is met. Meanwhile, the third driving mechanism drives the first guide rail 21 to slide on the second guide rail 22 along a direction parallel to the conveying direction of the assembly line 10, so that the camera assembly 711 and the light source assembly can be driven to move and photograph the workpiece 11 entering the assembly line 10 inside the supporting frame 20 for multiple times, the detected part of the whole workpiece 11 is conveyed to the inside of a control analysis system in the visual detection device in a picture mode, and the whole product is detected through software analysis.

By providing the first driving mechanism for driving the first support 71 to slide on the first rail 21, and the first locking mechanism 91, the camera module 711 can be adjusted to be lifted and lowered by the first driving mechanism when in use, and the camera module 711 can be locked at a position convenient for visual detection by the first locking mechanism 91 when the camera module 711 is slid to the position. Compared with the prior art, the camera assembly moving and fixing device has the advantages that the camera does not need to be manually supported to move and fix in the Z-axis direction, the camera can be adjusted in the vertical direction through the first driving mechanism, and when the distance is properly adjusted, the camera can be fixed in position through the first locking mechanism 91, so that time and labor are saved, personnel debugging is facilitated, and the camera assembly can automatically move and fix in the Z-axis direction.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A vision inspection apparatus for inspecting a workpiece on a production line, comprising:

the first supporting piece is positioned above the workpiece of the assembly line, and a camera assembly for visually detecting the workpiece is arranged on the first supporting piece;

the two first guide rails are respectively arranged on two sides of the assembly line and extend along the vertical direction, and two ends of the first supporting piece are respectively assembled on the two first guide rails in a sliding mode;

the first driving mechanism is used for driving the first supporting piece to slide on the two first guide rails;

a first locking mechanism for locking the first support to the two first rails;

the two first guide rails are respectively arranged on two sides of the assembly line and extend along the conveying direction of the assembly line, and the two first guide rails are respectively assembled on the two second guide rails in a sliding mode;

and the supporting frame is used for fixing the two second guide rails.

2. The visual inspection device of claim 1, wherein the first support is a rod structure;

the two ends of the rod body structure are fixedly connected with a first supporting plate respectively, a first sliding block is fixedly connected to each first supporting plate, and the two first sliding blocks are assembled on the two first guide rails in a sliding mode respectively.

3. The visual inspection apparatus of claim 2, wherein the first drive mechanism comprises:

the first transmission screw is parallel to the extending direction of the first guide rail;

the two first fixing seats are respectively and rotatably connected with the first transmission screw rod, and the two first fixing seats are fixedly connected with one of the two first guide rails;

the first transmission nut seat is sleeved on the first transmission screw rod, and the first supporting plate is fixedly connected with the first transmission nut seat.

4. The visual inspection device of claim 3, further comprising:

a second support positioned above a workpiece of the assembly line, the second support having a light source assembly disposed thereon for illuminating the workpiece; two ends of the second supporting piece are respectively assembled on two first guide rails in a sliding mode;

a second driving mechanism for driving the second supporting piece to slide on the two first guide rails;

a second locking mechanism for locking the second support on the two first rails.

5. The visual inspection device of claim 4, wherein the second support is a rectangular frame;

a pair of frames opposite to each other in position in the frame are fixedly connected with a second supporting plate respectively, each second supporting plate is fixedly connected with a second sliding block, and the two second sliding blocks are assembled on the two first guide rails in a sliding mode.

6. The visual inspection device of claim 5, wherein an angularly adjustable bar light source is disposed on each of the opposing pairs of rims in the frame.

7. The visual inspection device of claim 6, wherein each of the frames of the other pair of frames is fixedly connected with two adapter plates, and two ends of the bar-shaped light source are respectively rotatably connected with the two adapter plates;

the light source module is characterized in that the adapter plate is further provided with an arc line hole, and a locking screw used for locking the bar-shaped light source at a set angle is arranged on the arc line hole.

8. The visual inspection device of claim 5, wherein the second drive mechanism comprises:

the second transmission lead screw is parallel to the extending direction of the first guide rail and is positioned below the first transmission lead screw;

the two second fixed seats are fixedly connected with one of the two first guide rails, and the two first fixed seats are fixedly connected with the two second fixed seats and the same one of the two first guide rails;

and the second transmission nut seat is sleeved on the second transmission screw rod, and the second support plate is fixedly connected with the second transmission nut seat.

9. The visual inspection device of claim 8, wherein each of the first and second leadscrews is provided with a handwheel for driving the corresponding leadscrew to rotate.

10. The visual inspection device of claim 1, further comprising a third drive mechanism, the third drive mechanism comprising:

two third fixing seats arranged on each of the two second guide rails;

the transmission shaft is rotatably connected with the two third fixed seats;

the motor is arranged on one of the two second guide rails and is used for driving the transmission shaft to rotate;

the driving belt is assembled on each second guide rail, and the driving belt on each second guide rail is fixedly connected with the first guide rail on the second guide rail;

the two driving pulleys are sleeved on the transmission shaft and fixedly connected with the transmission shaft, and the two driving pulleys are used for driving the two transmission belts to advance respectively.