CN220568066U - High-precision target positioning device for machine vision - Google Patents
High-precision target positioning device for machine vision Download PDFInfo
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- CN220568066U CN220568066U CN202322225716.9U CN202322225716U CN220568066U CN 220568066 U CN220568066 U CN 220568066U CN 202322225716 U CN202322225716 U CN 202322225716U CN 220568066 U CN220568066 U CN 220568066U
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 37
- 238000005286 illumination Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000003384 imaging method Methods 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a machine vision high-precision target positioning device, which comprises a conveying platform, and a lifting mechanism, a horizontal displacement mechanism and a shadowless shooting mechanism which are arranged on the conveying platform; the conveying platform is used for conveying the workpieces; the lifting mechanism is used for controlling the horizontal displacement mechanism to lift; the horizontal displacement mechanism is used for controlling the shadowless camera mechanism to move horizontally; the shadowless camera is used for uniformly illuminating the surface of the workpiece and capturing images of the workpiece. According to the utility model, the shadowless camera shooting mechanism arranged on the conveying platform can uniformly illuminate the surface of the workpiece, so that the problem of workpiece image blurring caused by factors such as unstable illumination conditions, workpiece shielding due to shadow of equipment and the like is solved, a machine vision system can more accurately detect and position a target workpiece, and the subsequent processing of the workpiece is facilitated.
Description
Technical Field
The utility model relates to the technical field of machine vision positioning, in particular to a machine vision high-precision target positioning device.
Background
With the rapid development of industrial automation, machine vision technology plays an increasingly important role in the field of workpiece processing such as mechanical parts. The machine vision positioning device comprises a camera shooting mechanism, and the traditional camera shooting mechanism is often used for shooting a fuzzy workpiece image due to factors such as unstable illumination conditions of a factory workshop, shielding of a workpiece by shadow of the equipment, and the like, so that accurate target positioning information cannot be obtained, and inconvenience is brought to the subsequent workpiece processing process under the condition.
Disclosure of Invention
The present utility model is directed to a machine vision high precision target positioning device that solves one or more of the problems of the prior art, and at least provides a beneficial choice or creation.
The utility model adopts the following technical scheme:
a machine vision high-precision target positioning device comprises a conveying platform, a lifting mechanism, a horizontal displacement mechanism and a shadowless shooting mechanism, wherein the lifting mechanism, the horizontal displacement mechanism and the shadowless shooting mechanism are arranged on the conveying platform;
the conveying platform is used for conveying workpieces;
the lifting mechanism is used for controlling the horizontal displacement mechanism to lift;
the horizontal displacement mechanism is used for controlling the shadowless camera mechanism to move horizontally;
the shadowless camera mechanism is used for uniformly illuminating the surface of the workpiece and capturing images of the workpiece.
Further, the lifting mechanism comprises a first motor, a first screw rod, a first lifting block, a guide rod and a second lifting block;
the first motor and the guide rod are symmetrically and fixedly arranged at the edge of the conveying platform;
the first screw rod is fixedly connected with an output shaft of the first motor through a transmission mechanism;
the first lifting block is in threaded connection with the first screw rod;
the second lifting block is sleeved with the guide rod;
the horizontal displacement mechanism is fixedly arranged between the first lifting block and the second lifting block.
Further, the lifting mechanism further comprises a first limiting block;
the first limiting block is used for limiting the movement stroke of the first lifting block.
Further, the lifting mechanism further comprises a second limiting block;
the second limiting block is used for limiting the movement stroke of the second lifting block.
Further, the horizontal displacement mechanism comprises a second motor, a second screw rod and a horizontal displacement block;
the second motor is fixedly arranged on the first lifting block;
one end of the second screw rod is fixedly connected with an output shaft of the second motor through a transmission mechanism;
the horizontal displacement block is in threaded connection with the second screw rod;
the other end of the second screw rod is rotationally connected with the second lifting block through a bearing;
the shadowless camera shooting mechanism is fixedly connected with the horizontal displacement block.
Further, the shadowless imaging mechanism comprises a housing;
a threaded connection part is fixedly arranged at the top of the shell;
the bottom of the horizontal displacement block is provided with a threaded hole;
the threaded connection portion is in threaded connection with the threaded hole.
Further, a rotating ring is fixedly arranged on the top surface of the shell and used for installing or detaching the shadowless camera shooting mechanism.
Further, the shadowless camera mechanism also comprises a machine vision camera and a shadowless lamp;
the machine vision camera is fixedly arranged at the bottom of the shell and is used for shooting images of the workpiece;
the shadowless lamp is fixedly arranged on the periphery of the machine vision camera and used for uniformly illuminating the surface of a workpiece.
Further, a dimming controller is fixedly arranged at the top of the shell;
the dimming controller penetrates through the shell and is fixedly connected with the shadowless lamp and used for adjusting the illumination range of the shadowless lamp.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the shadowless camera shooting mechanism arranged on the conveying platform can uniformly illuminate the surface of the workpiece, so that the problem of workpiece image blurring caused by factors such as unstable illumination conditions, workpiece shielding due to shadow of equipment and the like is solved, a machine vision system can more accurately detect and position a target workpiece, and the subsequent processing of the workpiece is facilitated.
Drawings
FIG. 1 is a schematic diagram of a machine vision high-precision target positioning device according to the present utility model;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a partially exploded view of FIG. 1;
FIG. 4 is a partially exploded view of FIG. 1;
fig. 5 is a partially exploded view of the shadowless imaging mechanism of fig. 1.
In the figure:
10. a conveying platform;
20. a lifting mechanism; 21. a first motor; 22. a first screw rod; 23. a first lifting block; 24. a guide rod; 25. a second lifting block; 26. a first limiting block; 27. a second limiting block;
30. a horizontal displacement mechanism; 31. a second motor; 32. a second screw rod; 33. a horizontal displacement block;
40. a shadowless camera shooting mechanism; 41. a housing; 42. a threaded connection; 43. a rotating ring; 44. a machine vision camera; 45. a shadowless lamp; 46. and a dimming controller.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
1-5, a machine vision high-precision target positioning device comprises a conveying platform 10, and a lifting mechanism 20, a horizontal displacement mechanism 30 and a shadowless camera mechanism 40 which are arranged on the conveying platform 10; the conveying platform 10 is used for conveying workpieces; the lifting mechanism 20 is used for controlling the horizontal displacement mechanism 30 to lift; the horizontal displacement mechanism 30 is used for controlling the shadowless imaging mechanism 40 to horizontally move; the shadowless imaging mechanism 40 is used to uniformly illuminate the surface of the workpiece and capture an image of the workpiece.
Specifically, the lifting mechanism 20 includes a first motor 21, a first screw 22, a first lifting block 23, a guide bar 24, and a second lifting block 25; the first motor 21 and the guide bar 24 are fixedly disposed symmetrically to each other at the edge of the conveying platform 10; the first screw rod 22 is fixedly connected with the output shaft of the first motor 21 through a transmission mechanism; the first lifting block 23 is in threaded connection with the first screw rod 22; the second lifting block 25 is sleeved with the guide rod 24.
The horizontal displacement mechanism 30 is fixedly disposed between the first lifting block 23 and the second lifting block 25. Like this, start first motor 21, first lead screw 22 drives first lifter 23 and goes up and down, and first lifter 23 drives horizontal displacement mechanism 30 and second lifter 25 and goes up and down, and guide bar 24 and second lifter 25 can play the guide effect to the lift of horizontal displacement mechanism 30, avoid its deflection.
As a preferred embodiment, a first limiting block 26 is rotatably connected to the top end of the first screw 22 through a bearing, and the first limiting block 26 is used for limiting the movement stroke of the first lifting block 23.
As a preferred embodiment, a second limiting block 27 is fixedly provided at the top end of the guide bar 24, and the second limiting block 27 is used for limiting the movement stroke of the second lifting block 25.
On the basis of the above structure, the horizontal displacement mechanism 30 includes a second motor 31, a second screw 32, and a horizontal displacement block 33; the second motor 31 is fixedly arranged on the first lifting block 23; one end of the second screw rod 32 is fixedly connected with an output shaft of the second motor 31 through a transmission mechanism; the horizontal displacement block 33 is in threaded connection with the second screw rod 32; the other end of the second screw rod 32 is rotatably connected with the second lifting block 25 through a bearing; the shadowless imaging mechanism 40 is fixedly connected with the horizontal displacement block 33. In this way, the horizontal displacement block 33 can drive the shadowless imaging mechanism 40 to move in the horizontal direction, and the shadowless imaging mechanism 40 can collect images of workpieces at different positions on the conveying platform 10, so that the image collection range of the shadowless imaging mechanism 40 is shortened, and the time consumed by image collection is reduced.
On the basis of the above-described structure, the shadowless imaging mechanism 40 includes a housing 41; the top of the housing 41 is fixedly provided with a threaded connection part 42; the bottom of the horizontal displacement block 33 is provided with a threaded hole 34; the threaded connection 42 is threadedly connected to the threaded bore 34. The top surface of the housing 41 is fixedly provided with a rotary ring 43, which can facilitate the disassembly or assembly of the shadowless imaging mechanism 40 by an operator.
On the basis of the above structure, the shadowless imaging mechanism 40 further includes a machine vision camera 44 and a shadowless lamp 45; the machine vision camera 44 is fixedly arranged at the bottom of the shell 41 and is used for shooting images of the workpiece; the shadowless lamp 45 is fixedly arranged at the outer circumference of the machine vision camera 44 for uniformly illuminating the surface of the workpiece.
As a preferred embodiment, a dimming controller 46 is fixedly arranged on the top of the housing 41; the dimming controller 46 penetrates through the shell 41 and is fixedly connected with the shadowless lamp 45, and the illumination range of the shadowless lamp 45 can be adjusted according to different sizes of workpieces.
The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.
Claims (9)
1. The utility model provides a high accuracy target positioning device of machine vision which characterized in that: the device comprises a conveying platform, a lifting mechanism, a horizontal displacement mechanism and a shadowless shooting mechanism, wherein the lifting mechanism, the horizontal displacement mechanism and the shadowless shooting mechanism are arranged on the conveying platform;
the conveying platform is used for conveying workpieces;
the lifting mechanism is used for controlling the horizontal displacement mechanism to lift;
the horizontal displacement mechanism is used for controlling the shadowless camera mechanism to move horizontally;
the shadowless camera mechanism is used for uniformly illuminating the surface of the workpiece and capturing images of the workpiece.
2. A machine vision high precision object positioning apparatus as defined in claim 1, wherein: the lifting mechanism comprises a first motor, a first screw rod, a first lifting block, a guide rod and a second lifting block;
the first motor and the guide rod are symmetrically and fixedly arranged at the edge of the conveying platform;
the first screw rod is fixedly connected with an output shaft of the first motor through a transmission mechanism;
the first lifting block is in threaded connection with the first screw rod;
the second lifting block is sleeved with the guide rod;
the horizontal displacement mechanism is fixedly arranged between the first lifting block and the second lifting block.
3. A machine vision high precision object positioning apparatus as defined in claim 2, wherein: the lifting mechanism further comprises a first limiting block;
the first limiting block is used for limiting the movement stroke of the first lifting block.
4. A machine vision high precision object positioning apparatus as defined in claim 2, wherein: the lifting mechanism further comprises a second limiting block;
the second limiting block is used for limiting the movement stroke of the second lifting block.
5. A machine vision high precision object positioning apparatus as defined in claim 2, wherein: the horizontal displacement mechanism comprises a second motor, a second screw rod and a horizontal displacement block;
the second motor is fixedly arranged on the first lifting block;
one end of the second screw rod is fixedly connected with an output shaft of the second motor through a transmission mechanism;
the horizontal displacement block is in threaded connection with the second screw rod;
the other end of the second screw rod is rotationally connected with the second lifting block through a bearing;
the shadowless camera shooting mechanism is fixedly connected with the horizontal displacement block.
6. A machine vision high precision object positioning apparatus as defined in claim 5, wherein: the shadowless camera mechanism comprises a shell;
a threaded connection part is fixedly arranged at the top of the shell;
the bottom of the horizontal displacement block is provided with a threaded hole;
the threaded connection portion is in threaded connection with the threaded hole.
7. A machine vision high precision object positioning apparatus as defined in claim 6, wherein: the top surface of the shell is fixedly provided with a rotating ring which is used for installing or detaching the shadowless camera shooting mechanism.
8. A machine vision high precision object positioning apparatus as defined in claim 6, wherein: the shadowless camera shooting mechanism also comprises a machine vision camera and a shadowless lamp;
the machine vision camera is fixedly arranged at the bottom of the shell and is used for shooting images of the workpiece;
the shadowless lamp is fixedly arranged on the periphery of the machine vision camera and used for uniformly illuminating the surface of a workpiece.
9. A machine vision high precision object positioning apparatus as defined in claim 8, wherein: the top of the shell is fixedly provided with a dimming controller;
the dimming controller penetrates through the shell and is fixedly connected with the shadowless lamp and used for adjusting the illumination range of the shadowless lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322225716.9U CN220568066U (en) | 2023-08-18 | 2023-08-18 | High-precision target positioning device for machine vision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322225716.9U CN220568066U (en) | 2023-08-18 | 2023-08-18 | High-precision target positioning device for machine vision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220568066U true CN220568066U (en) | 2024-03-08 |
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ID=90087924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322225716.9U Active CN220568066U (en) | 2023-08-18 | 2023-08-18 | High-precision target positioning device for machine vision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220568066U (en) |
-
2023
- 2023-08-18 CN CN202322225716.9U patent/CN220568066U/en active Active
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