CN115806167A - Positioning device based on machine vision - Google Patents
Positioning device based on machine vision Download PDFInfo
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- CN115806167A CN115806167A CN202211101730.1A CN202211101730A CN115806167A CN 115806167 A CN115806167 A CN 115806167A CN 202211101730 A CN202211101730 A CN 202211101730A CN 115806167 A CN115806167 A CN 115806167A
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- rod
- fixedly connected
- sliding
- machine vision
- positioning device
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Abstract
The invention discloses a positioning device based on machine vision, which comprises a conveying table and a conveying belt, wherein a rack is fixedly connected to the conveying table, a machine vision camera is mounted on the rack through a transverse plate, a bidirectional screw rod is rotatably connected to the rack, and two fixing sleeves are in threaded connection with the bidirectional screw rod; sliding connection has two sliding blocks that are the symmetry and set up in the frame, every the sliding block all through hinged joint pole and correspondence fixed cover is connected, every all there is the slide bar through a spring coupling on the sliding block, be provided with the removal subassembly on the slide bar, the removal subassembly include with slide bar fixed connection's installing frame. The product correcting device has the advantages of good correcting effect on the product transported on the surface of the conveying belt, high positioning performance, good production continuity, contribution to the production efficiency of the product, capability of achieving accurate positioning effect without auxiliary monitoring by manpower, and high practicability of the positioning device.
Description
Technical Field
The invention relates to the technical field of machine vision, in particular to a positioning device based on machine vision.
Background
Along with the continuous progress of the industrial industry, the industrial production rate is also greatly improved, the materials can be monitored and immediately positioned and sampled through machine vision at present, the product quality can be effectively controlled, and a machine vision system converts a shot target into an image signal through a machine vision product, transmits the image signal to a special image processing system and converts the image signal into a digital signal.
At present, the positioning device based on machine vision has the defects of poor correction effect on products conveyed on the surface of the conveying belt, low positioning performance, poor production continuity, unfavorable production efficiency of the products, necessity of auxiliary monitoring by means of manual work, capability of achieving accurate positioning effect and poor practicability of the positioning device.
Disclosure of Invention
The invention aims to solve the following defects in the prior art, the prior positioning device based on machine vision has poor correction effect on products transported on the surface of a conveyor belt, low positioning performance, poor production continuity and adverse effect on production efficiency of the products, can achieve accurate positioning effect only by means of manual auxiliary monitoring, and has poor practicability.
In order to achieve the purpose, the invention adopts the following technical scheme:
a positioning device based on machine vision comprises a conveying table and a conveying belt, wherein a rack is fixedly connected to the conveying table, a machine vision camera is mounted on the rack through a transverse plate, a bidirectional screw rod is rotatably connected to the rack, and two fixing sleeves are in threaded connection with the bidirectional screw rod;
the rack is connected with two sliding blocks which are symmetrically arranged in a sliding manner, each sliding block is connected with the corresponding fixed sleeve through a hinge rod, each sliding block is connected with a sliding rod through a first spring, a moving assembly is arranged on each sliding rod, the moving assembly comprises an installation frame fixedly connected with the sliding rod, two fixed rods which are symmetrically arranged are installed on the installation frame, and each fixed rod is rotatably connected with a plurality of positioning rollers;
carry two rectangular plates that are the symmetry and set up of bench fixedly connected with, every all be provided with the removal subassembly on the rectangular plate, the removal subassembly include through the second spring with the carriage release lever that the rectangular plate is connected, carriage release lever one end fixedly connected with push pedal.
Preferably, the frame is fixedly connected with two fixed blocks which are symmetrically arranged, each fixed block is provided with a limiting groove with a cross section in a right trapezoid shape, and the sliding rod is connected with the limiting groove in a sliding manner.
Preferably, carry two fixed plates that are the symmetry and set up of bench fixedly connected with, every all be connected with the dwang through torsion spring on the fixed plate, dwang one end fixedly connected with rotor plate.
Preferably, each sliding block is fixedly connected with an extrusion rod matched with the rotating plate, the conveying table is provided with an opening for vertical movement of the extrusion rod, and one end of each moving rod is fixedly connected with a sliding plate.
Preferably, each installing frame is provided with two openings which are arranged in a U shape, and the lower inner wall of the installing frame is provided with two grooves used for connecting the fixing rods.
Preferably, each mounting frame is provided with a sliding groove, the sliding groove is connected with two moving blocks in a sliding manner, each moving block is fixedly connected with a limiting block, and the cross section of each limiting block is in an arc shape.
Preferably, every equal fixedly connected with rectangular block on the stopper, the rectangular block has the installation pole through third spring coupling, the transversal font setting of personally submitting of installation pole, the installation pole with the dead lever joint.
Preferably, each fixing sleeve is fixedly connected with a limiting rod, a rectangular groove is formed in the rack, and the limiting rods are connected with the rectangular groove in a sliding mode.
Preferably, a plurality of anti-skid pads are fixedly connected to the conveying table and symmetrically arranged.
Compared with the prior art, the invention has the beneficial effects that:
1. the positioning rollers are uniformly distributed on two sides of the product, the product with offset and dislocation can be corrected in the moving process, and the positioning rollers can rotate relative to the fixed rod in the contact process of the product, so that the product can normally move, the product conveyed on the surface of the conveying belt is better in correction effect, high in positioning performance and better in production continuity, the production efficiency of the product is facilitated, the accurate positioning effect can be achieved without auxiliary monitoring by manpower, and the positioning device is higher in practicability;
2. in the process that each sliding block moves vertically downwards, the rotating rod and the fixed plate rotate relatively at the same time, the rotating plate is arranged obliquely after rotating and has displacement in the horizontal direction, the sliding plate and the moving rod move horizontally at the same time under the action of the elastic force of the second spring, and other products can be preliminarily positioned in the process that the pushing plate moves along with the moving rod;
3. connect each dead lever with the U font opening on the installing frame, later make the movable block and installing frame take place relative slip, the arc surface of stopper will laminate with the dead lever, later remove the effort of applying on the installation pole, the installation pole can carry out the joint with the dead lever, thereby can carry out stable installation to dead lever and location gyro wheel, like this when the location gyro wheel because long-time use, when wearing and tearing or damage takes place, can carry out timely change to the location gyro wheel, so that better product to on the conveyer belt is fixed a position.
Drawings
Fig. 1 is a schematic front structural diagram of a positioning device based on machine vision according to the present invention;
FIG. 2 is a schematic top view of a positioning device based on machine vision according to the present invention;
fig. 3 is a schematic cross-sectional structural view of a positioning apparatus based on machine vision according to the present invention;
FIG. 4 is a schematic side view of a positioning apparatus based on machine vision according to the present invention;
fig. 5 is a schematic front partial structure diagram of the mounting frame and the limiting block.
In the figure: the device comprises a conveying table 1, a conveying belt 2, a fixing rod 3, a mounting frame 4, a sliding block 5, a rack 6, a bidirectional screw rod 7, a fixing sleeve 8, a rotating rod 9, a fixing plate 10, a positioning roller 11, a machine vision camera 12, a hinge rod 13, a fixing block 14, a push plate 15, a moving rod 16, a rectangular plate 17, a sliding plate 18, a rotating plate 19, an extrusion rod 20, a sliding rod 21, a limiting groove 22, a limiting block 23, a moving block 24, a rectangular block 25, a third spring 26 and a mounting rod 27.
Detailed Description
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.
Referring to fig. 1-5, a positioner based on machine vision, including carrying platform 1 and conveyer belt 2, carry fixedly connected with frame 6 on the platform 1, install machine vision camera 12 through the diaphragm in the frame 6, it is connected with two-way lead screw 7 to rotate on the frame 6, threaded connection has two fixed covers 8 on the two-way lead screw 7, sliding connection has two sliding blocks 5 that are the symmetry setting on the frame 6, every sliding block 5 all is connected with the fixed cover 8 that corresponds through hinge bar 13, all there is the slide bar 21 through first spring coupling on every sliding block 5, be provided with the removal subassembly on the slide bar 21, the removal subassembly includes the installing frame 4 with slide bar 21 fixed connection.
Install two dead levers 3 that are the symmetry and set up on installing frame 4, all rotate on every dead lever 3 and be connected with a plurality of location gyro wheels 11, two fixed blocks 14 that are the symmetry and set up of fixedly connected with on the frame 6, all set up the transversal spacing groove 22 who personally submits the right trapezoid setting on every fixed block 14, slide bar 21 and spacing groove 22 sliding connection, because the transversal right trapezoid setting of personally submitting of spacing groove 22, the inclined surface sliding connection of slide bar 21 one end and spacing groove 22, the in-process of slide bar 21 downstream, distance between two installing frames 4 reduces.
Carry two rectangular plates 17 that are the symmetry and set up of fixedly connected with on the platform 1, all be provided with the removal subassembly on every rectangular plate 17, the removal subassembly includes the carriage release lever 16 of being connected through second spring and rectangular plate 17, 16 one end fixedly connected with push pedal 15 of carriage release lever, carry two fixed plates 10 that are the symmetry and set up of fixedly connected with on the platform 1, all be connected with dwang 9 through torsion spring on every fixed plate 10, dwang 9 one end fixedly connected with rotor plate 19, equal fixedly connected with and rotor plate 19 extrusion ram 20 that the cooperation was used on every sliding block 5.
Offer the opening that is used for the vertical removal of extrusion stem 20 on carrying platform 1, the equal fixedly connected with sliding plate 18 of 16 one ends of every carriage release lever, the in-process that extrusion stem 20 removed, can remove together by supporting rotor plate 19, dwang 9 and fixed plate 10 take place relative rotation simultaneously, torsion spring takes place deformation, during initial condition, rotor plate 19 is the level setting, and rotor plate 19 surface and the laminating of sliding plate 18 surface, rotor plate 19 takes place to be the slope setting after rotating, the displacement that has the horizontal direction, under the spring action of second spring, sliding plate 18 and 16 simultaneous horizontal migration of carriage release lever.
All set up two openings that are the setting of U font on every installing frame 4, two recesses that are used for connecting dead lever 3 are seted up to the lower inner wall of installing frame 4, the spout has all been seted up on every installing frame 4, sliding connection has two movable blocks 24 on the spout, equal fixedly connected with stopper 23 on every movable block 24, the transversal convex setting of personally submitting of stopper 23, equal fixedly connected with rectangular block 25 on every stopper 23, rectangular block 25 is connected with installation pole 27 through third spring 26, the transversal character cut in bas relief shape setting of personally submitting of installation pole 27, installation pole 27 and 3 joints of dead lever.
Firstly, each fixing rod 3 is connected with a U-shaped opening on the installation frame 4, the lower end of each fixing rod 3 is located in a groove, then the moving block 24 and the installation frame 4 slide relatively, the arc-shaped surface of the limiting block 23 is attached to the surface of each fixing rod 3, then the acting force exerted on the installation rod 27 is removed, and the installation rod 27 is clamped with the fixing rods 3 under the elastic action of the third springs 26, so that the fixing rods 3 and the positioning rollers 11 can be stably installed.
Equal fixedly connected with gag lever post on every fixed cover 8, the rectangular channel has been seted up in the frame 6, gag lever post and rectangular channel sliding connection, because fixed cover 8 and 7 threaded connection of two-way lead screw, and gag lever post one end and fixed cover 8 fixed connection, the spacing slip of the other end is in the rectangular channel, under the limiting action of gag lever post, can prevent that fixed cover 8 horizontal migration's in-process from taking place the swing, carry a plurality of slipmats of fixedly connected with on the platform 1, a plurality of slipmats are the symmetry and set up, the slipmat can improve the frictional force of carrying between platform 1 and the contact surface, prevent to carry and take place relative slip between platform 1 and the contact surface, be favorable to improving the stability of carrying platform 1.
In the invention, when the machine vision camera 12 is used for monitoring the position of a product on the conveying belt 2, information of the monitored product position is transmitted to a computer outside the belt, the computer judges whether the position of the product on the conveying belt 2 has offset dislocation, and after the product has offset dislocation, the computer controls the motor to be started through the PLC controller (the machine vision camera 12, the connection relation and the principle between the computer and the motor are the prior art, and the working principle is not described in detail).
In the process of horizontal movement of the fixed sleeve 8, because one end of the hinged rod 13 is hinged to the fixed sleeve 8, the other end of the hinged rod is hinged to the sliding block 5, the inclination angle of the hinged rod 13 changes, the sliding block 5 slides relative to the rack 6 simultaneously, in the process of vertical downward movement of the sliding block 5, one end of the sliding rod 21 slides relative to the limiting groove 22, because the cross section of the limiting groove 22 is in a right trapezoid shape, one end of the sliding rod 21 is connected with the inclined surface of the limiting groove 22 in a sliding manner, in the process of downward movement of the sliding rod 21, the distance between the two installation frames 4 is reduced until the positioning roller 11 on each fixed rod 3 contacts with a product, the positioning rollers 11 are uniformly distributed on two sides of the product, in the moving process of the positioning roller, the product with offset dislocation can be corrected, in the process of contacting with the product, the positioning roller 11 can rotate relative to the fixed rod 3, so that the product can normally move, the product correction effect on the surface transportation of the conveying belt 2 is good, the positioning performance is high, and the production continuity is good, and the production efficiency of the auxiliary monitoring is not needed by manpower, and the positioning device is high in practicability.
Each sliding block 5 vertical in-process that moves down, the extrusion stem 20 also can be together vertically move down, the in-process that extrusion stem 20 removed, can contact with rotor plate 19, and move together against rotor plate 19, dwang 9 and fixed plate 10 take place relative rotation simultaneously, torsion spring takes place to deform, during initial condition, rotor plate 19 is the level setting, and rotor plate 19 surface and the laminating of sliding plate 18 surface, rotor plate 19 takes place to rotate the back and is the slope setting, the displacement that has the horizontal direction, under the spring action of second spring, sliding plate 18 and the simultaneous horizontal migration of movable rod 16, push pedal 15 is along with the in-process that movable rod 16 moved together, just can carry out preliminary location to other products, under two push pedal 15 common positioning action, make the positioning effect to the product better, be favorable to improving the positioning performance to the skew dislocation product.
During installation, at first, each fixing rod 3 is connected with the U-shaped opening on the installation frame 4, and the lower end of each fixing rod 3 is located in the groove, then the moving block 24 and the installation frame 4 slide relatively, after the limiting block 23 moves along with the limiting block, the arc surface of the limiting block 23 can be attached to the surface of the fixing rod 3, then the acting force exerted on the installation rod 27 is removed, because the third spring 26 is fixedly connected with the installation rod 27 at one end, the other end is fixedly connected with the rectangular block 25, under the action of the elastic force of the third spring 26, the cross section of the installation rod 27 can be clamped with the fixing rod 3 at the end where the rectangle is arranged, so that the fixing rod 3 and the positioning roller 11 can be stably installed, and in the same way, when the positioning roller 11 is worn or damaged due to long-time use, the positioning roller 11 can be timely replaced, so that products on the conveying belt 2 can be better positioned.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (9)
1. A positioning device based on machine vision comprises a conveying table (1) and a conveying belt (2), and is characterized in that a rack (6) is fixedly connected to the conveying table (1), a machine vision camera (12) is mounted on the rack (6) through a transverse plate, a bidirectional screw rod (7) is rotatably connected to the rack (6), and two fixing sleeves (8) are connected to the bidirectional screw rod (7) in a threaded manner;
the automatic positioning device is characterized in that two sliding blocks (5) which are symmetrically arranged are connected to the rack (6) in a sliding manner, each sliding block (5) is connected with the corresponding fixed sleeve (8) through a hinge rod (13), each sliding block (5) is connected with a sliding rod (21) through a first spring, a moving assembly is arranged on each sliding rod (21), the moving assembly comprises an installation frame (4) which is fixedly connected with the sliding rod (21), two fixing rods (3) which are symmetrically arranged are installed on the installation frame (4), and a plurality of positioning rollers (11) are rotatably connected to each fixing rod (3);
carry two rectangular plates (17) that are the symmetry and set up of fixedly connected with on platform (1), every all be provided with the removal subassembly on rectangular plate (17), the removal subassembly include through the second spring with carriage release lever (16) that rectangular plate (17) are connected, carriage release lever (16) one end fixedly connected with push pedal (15).
2. The positioning device based on machine vision according to claim 1, characterized in that two symmetrically arranged fixing blocks (14) are fixedly connected to the frame (6), each fixing block (14) is provided with a limiting groove (22) with a right trapezoid cross section, and the sliding rod (21) is slidably connected with the limiting groove (22).
3. The positioning device based on machine vision according to claim 1, characterized in that two symmetrically arranged fixed plates (10) are fixedly connected to the conveying table (1), a rotating rod (9) is connected to each fixed plate (10) through a torsion spring, and a rotating plate (19) is fixedly connected to one end of the rotating rod (9).
4. The positioning device based on machine vision according to claim 3, characterized in that each sliding block (5) is fixedly connected with an extrusion rod (20) used in cooperation with the rotating plate (19), the conveying table (1) is provided with an opening for vertical movement of the extrusion rod (20), and one end of each moving rod (16) is fixedly connected with a sliding plate (18).
5. The positioning device based on machine vision according to claim 1, characterized in that each of the mounting frames (4) has two openings in a U-shape, and the lower inner wall of the mounting frame (4) has two grooves for connecting the fixing rods (3).
6. The positioning device based on machine vision according to claim 1, characterized in that each mounting frame (4) is provided with a sliding groove, two moving blocks (24) are slidably connected to the sliding grooves, each moving block (24) is fixedly connected with a limiting block (23), and the cross section of each limiting block (23) is arranged in a circular arc shape.
7. The positioning device based on machine vision according to claim 6, characterized in that each of the limiting blocks (23) is fixedly connected with a rectangular block (25), the rectangular block (25) is connected with a mounting rod (27) through a third spring (26), the cross section of the mounting rod (27) is arranged in a shape like a Chinese character 'ao', and the mounting rod (27) is connected with the fixing rod (3) in a clamping manner.
8. The positioning device based on machine vision as claimed in claim 1, wherein each said fixing sleeve (8) is fixedly connected with a limiting rod, said frame (6) is provided with a rectangular slot, and said limiting rod and said rectangular slot are slidably connected.
9. The positioning device based on machine vision according to claim 1, characterized in that a plurality of non-slip mats are fixedly connected to the conveying table (1) and are symmetrically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211101730.1A CN115806167A (en) | 2022-09-09 | 2022-09-09 | Positioning device based on machine vision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211101730.1A CN115806167A (en) | 2022-09-09 | 2022-09-09 | Positioning device based on machine vision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115806167A true CN115806167A (en) | 2023-03-17 |
Family
ID=85482543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211101730.1A Withdrawn CN115806167A (en) | 2022-09-09 | 2022-09-09 | Positioning device based on machine vision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115806167A (en) |
-
2022
- 2022-09-09 CN CN202211101730.1A patent/CN115806167A/en not_active Withdrawn
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Application publication date: 20230317 |