CN213121651U - Welding spot detection device adopting white light confocal technology - Google Patents
Welding spot detection device adopting white light confocal technology Download PDFInfo
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- CN213121651U CN213121651U CN202021790708.9U CN202021790708U CN213121651U CN 213121651 U CN213121651 U CN 213121651U CN 202021790708 U CN202021790708 U CN 202021790708U CN 213121651 U CN213121651 U CN 213121651U
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Abstract
The utility model relates to an adopt confocal solder joint detection device of white light. The welding spot detection device comprises a host, a white light confocal sensor, a white light confocal controller, a moving mechanism and a jig, wherein the controller is electrically connected with the sensor, the host is electrically connected with the controller and the moving mechanism respectively, the sensor is arranged on the moving mechanism, the moving mechanism is used for driving the sensor to move on one surface, the jig is used for placing a workpiece to be detected with a welding spot, the sensing end of the sensor faces towards the workpiece, and the controller and the sensor are used for detecting the distance change between the surface of the welding spot on the workpiece and the sensor. The utility model discloses an adopt the confocal sensor of white light to scan work piece solder joint surface, the confocal sensor of white light is the equipment of higher accuracy among the non-contact displacement sensor, can be used for measuring target's distance to change, consequently can measure the altitude variation of solder joint, and then can carry out more accurate quality detection to the solder joint, improves and detects the precision, satisfies the user demand.
Description
Technical Field
The utility model relates to a solder joint detects the technique, especially relates to an adopt solder joint detection device of white light confocal.
Background
Weld inspection is a routine process for the inspection and assessment of weld quality after welding. The common welding spot detection is to judge the quality by the experience of an inspector through visual observation. In the industry, a plurality of welding spot images are shot through camera visual detection and then welding spot quality detection judgment is carried out through an image algorithm. The visual detection mode can reduce the workload of operators and can be applied to a production line. However, the image shot by the camera is a two-dimensional image, and the height change of the welding point cannot be measured, so that the welding point cannot be subjected to more accurate quality detection, and improvement is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's above defect, and provide an adopt confocal solder joint detection device of white light to realize carrying out more accurate detection to the solder joint.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the welding spot detection device comprises a host, a white light confocal sensor, a white light confocal controller, a moving mechanism and a jig, wherein the controller is electrically connected with the sensor, the host is electrically connected with the controller and the moving mechanism respectively, the sensor is arranged on the moving mechanism, the moving mechanism is used for driving the sensor to move on one surface, the jig is used for placing a workpiece to be detected with a welding spot, the sensing end of the sensor faces towards the workpiece, and the controller and the sensor are used for detecting the distance change between the surface of the welding spot on the workpiece and the sensor.
The welding spot detection device further comprises a camera, the camera is arranged on the moving mechanism and moves on the same plane with the sensor synchronously, the camera is used for searching the welding spot position on the surface of the workpiece and shooting a welding spot picture, and the camera is electrically connected with the host.
The moving mechanism comprises a screw rod assembly and a linear motor, the linear motor is used for driving the screw rod assembly to linearly reciprocate, and the screw rod assembly is used for driving the sensor to linearly reciprocate along the direction perpendicular to the driving direction of the linear motor.
The lead screw component comprises a motor, a lead screw, a nut and an angle plate, the lead screw is perpendicular to the driving direction of the linear motor, the motor drives the nut to linearly reciprocate through the lead screw, the angle plate is fixedly connected with the nut, and the sensor is fixed on the angle plate.
The screw rod assembly further comprises a connecting plate, the connecting plate is parallel to the screw rod, a guide protruding strip parallel to the screw rod is arranged on the connecting plate, the angle plate is in sliding connection with the guide protruding strip, and the guide protruding strip is used for guiding the linear reciprocating movement direction of the angle plate.
The welding spot detection device further comprises a camera, the camera is arranged on the angle plate and is arranged side by side with the sensor, the camera is used for searching the welding spot position on the surface of the workpiece and shooting a welding spot picture, and the camera is electrically connected with the host machine.
One side of the connecting plate is fixedly connected with a moving seat of the linear motor, the other side of the connecting plate is fixedly connected with a sliding block, the outer end of the lead screw penetrates into a bearing seat, the bearing seat is fixed on the sliding block, the sliding block slides on a sliding rail, and the sliding rail is parallel to the driving direction of the linear motor.
The middle of the jig is hollowed out, four inner plates extending towards the center are arranged at the hollowed-out positions, and the inner plates are used for supporting the workpiece to be detected.
Compared with the prior art, the utility model beneficial effect be: the sensor through adopting white light to focus is come the scanning work piece solder joint surface, and white light is focused the higher accuracy equipment among the sensor non-contact displacement sensor, can be used for measuring the distance change of target, consequently can measure the altitude variation of solder joint, and then can carry out more accurate quality detection to the solder joint, improves and detects the precision, satisfies the user demand.
Drawings
Fig. 1 is an electrical connection block diagram of the welding spot detection device of the present invention.
Fig. 2 is an exploded view of the solder joint detecting device of the present invention.
It should be noted that, the products shown in the above views are all appropriately reduced/enlarged according to the size of the drawing and the clear view, and the size of the products shown in the views is not limited.
Detailed Description
In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and explained with reference to the specific embodiments.
As shown in fig. 1, the welding spot detecting device includes a main body 10, a white light confocal sensor 12, a white light confocal controller 11, and a moving mechanism 20. The controller 11 is electrically connected to the sensor 12. The host is electrically connected to the controller 11 and the moving mechanism 20, respectively. The sensor 12 is provided on a moving mechanism 20, and the moving mechanism 20 is used to drive the sensor 12 to move on one surface. The sensing end of the sensor 12 is directed towards the workpiece. The controller 11 and the sensor 12 are used to detect a change in the distance between the surface of the spot of the weld on the workpiece and the sensor 12. As shown in fig. 1, the welding spot detecting apparatus further includes a camera 13. The camera 13 is electrically connected to the host computer 10. The camera 13 is provided on the moving mechanism 20. The camera 13 moves in the same plane in synchronization with the sensor 12. The camera 13 is used for finding the position of the welding spot on the surface of the workpiece and shooting a picture of the welding spot. When the device is used, after the camera 13 can take a picture of a workpiece, the host computer 10 determines the position of a welding spot in the image, and then the moving mechanism 20 translates the white light confocal sensor 12 to the position of the welding spot for detection. If a weld point is present that exceeds the set weld point standard, a picture may be re-taken by the camera 13 at that location for further judgment by the operator.
As shown in fig. 2, the moving mechanism 20 includes a lead screw assembly and a linear motor 21. The linear motor 21 is used for driving the screw rod assembly to linearly reciprocate. The lead screw assembly is used for driving the sensor 12 to linearly reciprocate along a direction perpendicular to the driving direction of the linear motor 21. The screw assembly comprises a motor 22, a screw 23, a nut 24, an angle plate 25 and a connecting plate 26. The length direction of the screw 23 is perpendicular to the driving direction of the linear motor 21. The motor 22 drives the nut 24 to linearly reciprocate through the lead screw 23, the angle plate 25 is fixedly connected with the nut 24, and the sensor 12 and the camera 13 are fixed on the angle plate 25 side by side. The motor 22 drives the sensor 12 and the camera 13 to linearly reciprocate through the lead screw 23, the nut 24, and the angle plate 25.
As shown in fig. 2, the connecting plate 26 is parallel to the screw 23, and one side of the connecting plate 26 is fixedly connected to the moving seat 211 of the linear motor 21, and the other side is fixedly connected to a slide block 28. The outer end of the screw 23 penetrates into a bearing block 27, and the bearing block 27 is fixed on a slide block 28. The slide 28 slides on a slide 29, while the slide 29 is parallel to the driving direction of the linear motor 21. The slide rails 29 serve to support and guide the slide 28.
As shown in fig. 2, the link plate 26 is provided with a guide rib 261 parallel to the lead screw 23. The gusset 25 is slidably connected to the guide protrusion 261, and thus the guide protrusion 261 serves to guide the linear reciprocating direction of the gusset 25.
As shown in fig. 2, the solder joint inspection apparatus further includes a fixture 30. The jig 30 is used for placing a workpiece 90 to be detected with a welding spot 91. The middle of the jig 30 is hollowed out, four inner plates 31 extending towards the center are arranged at the hollowed-out positions, and the inner plates 31 are used for supporting the workpiece 90 to be detected. The hollow structure of the jig 30 mainly aims to avoid the position of the welding spot 91 of the workpiece 90 to be detected, and when the welding spot 91 has a missing welding or a welding through (through hole), the white confocal sensor 12 cannot receive the reflected light at the position, and presents a black area, so that the quality defect of the missing welding or the welding through at the position a can be easily judged.
In the description of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above description is only for the purpose of illustrating the technical content of the present invention by way of example, so as to facilitate the understanding of the reader, but does not represent that the embodiments of the present invention are limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention.
Claims (8)
1. Adopt confocal solder joint detection device of white light, its characterized in that, it includes host computer, confocal sensor of white light, confocal controller of white light, moving mechanism and tool, the controller is connected with the sensor electricity, the host computer is connected with controller, moving mechanism electricity respectively, the sensor is established moving mechanism is last, moving mechanism is used for driving the sensor and moves on a face, the tool is used for placing the work piece that waits that has the solder joint, the response end orientation of sensor is in the work piece, controller and sensor are used for detecting the solder joint surface on the work piece and the distance change between the sensor.
2. The welding spot detection device using white light confocal according to claim 1, further comprising a camera, wherein the camera is disposed on the moving mechanism, the camera and the sensor synchronously move on the same plane, the camera is used for finding the welding spot position on the surface of the workpiece and taking a welding spot picture, and the camera is electrically connected to the host.
3. The spot welding inspection device according to claim 1, wherein the moving mechanism comprises a lead screw assembly and a linear motor, the linear motor is configured to drive the lead screw assembly to reciprocate linearly, and the lead screw assembly is configured to drive the sensor to reciprocate linearly in a direction perpendicular to a driving direction of the linear motor.
4. The welding spot detection device using white light confocal according to claim 3, wherein the lead screw assembly comprises a motor, a lead screw, a nut, and an angle plate, the lead screw is perpendicular to the driving direction of the linear motor, the motor drives the nut to linearly reciprocate through the lead screw, the angle plate is fixedly connected with the nut, and the sensor is fixed on the angle plate.
5. The spot welding inspection device according to claim 4, wherein the lead screw assembly further comprises a connecting plate parallel to the lead screw, the connecting plate is provided with a guiding protrusion parallel to the lead screw, the angle plate is slidably connected to the guiding protrusion, and the guiding protrusion is used for guiding the linear reciprocating direction of the angle plate.
6. The welding spot detection device using white light confocal according to claim 4, further comprising a camera, wherein the camera is disposed on the angle plate and in parallel with the sensor, the camera is used for finding the welding spot position on the surface of the workpiece and taking a picture of the welding spot, and the camera is electrically connected to the host.
7. The welding spot detection device according to claim 5, wherein the connecting plate is fixedly connected to a movable base of the linear motor on one side and a sliding block on the other side, an outer end of the lead screw penetrates into a bearing seat, the bearing seat is fixed to the sliding block, the sliding block slides on a sliding rail, and the sliding rail is parallel to a driving direction of the linear motor.
8. The welding spot detection device adopting white light confocal of claim 1, wherein the fixture is hollowed in the middle, four inner plates extending towards the center are arranged at the hollowed parts, and the inner plates are used for supporting a workpiece to be detected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021790708.9U CN213121651U (en) | 2020-08-24 | 2020-08-24 | Welding spot detection device adopting white light confocal technology |
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| CN202021790708.9U CN213121651U (en) | 2020-08-24 | 2020-08-24 | Welding spot detection device adopting white light confocal technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670704A (en) * | 2021-08-27 | 2021-11-19 | 山东精工电源科技有限公司 | Method for detecting spot welding and false welding of energy storage battery pack and detection device used by same |
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2020
- 2020-08-24 CN CN202021790708.9U patent/CN213121651U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670704A (en) * | 2021-08-27 | 2021-11-19 | 山东精工电源科技有限公司 | Method for detecting spot welding and false welding of energy storage battery pack and detection device used by same |
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