CN219417179U - Visual positioning mechanism - Google Patents

Abstract

The utility model provides a visual positioning mechanism, which comprises a frame, wherein the frame is of a U-shaped structure, a horizontally arranged screw rod is rotationally connected to the frame, one end of the screw rod is fixedly connected with the output end of a servo motor, the servo motor is fixedly connected with the frame, a movable seat is connected to the screw rod through threads, the upper end of the movable seat is in sliding contact with the inner top of the frame, a visual camera is mounted on the lower surface of the movable seat, a horizontally arranged top plate is arranged on the upper side of the frame, two vertically arranged electric push rods are symmetrically and fixedly connected to the lower surface of the top plate, the movable end of the electric push rod is fixedly connected with the frame, two mounting holes for penetrating through bolts are symmetrically formed in the upper surface of the top plate, and the movable seat is connected with the screw rod through a connecting piece through threads: the adjustment of the relative position of the visual camera is realized, and the requirements for collecting articles with different sizes are met.

Description

Visual positioning mechanism

Technical Field

The utility model relates to a visual positioning mechanism, and belongs to the field of automation.

Background

Vision systems are often used in automated equipment, where vision cameras are a common device in the vision system that collects image information. At present, the visual camera is arranged right above the conveying belt, so that data are provided for transferring objects from the conveying belt by the robot, the visual camera is driven to move for conveniently and transversely adjusting the position of the visual camera by a driving structure of a motor and a screw, the screw is in threaded connection with a screw hole on the visual camera, when the motor drives the screw to rotate, the screw is matched with the screw hole to drive the visual camera to move, at present, the screw hole processed on the visual camera is in a closed shape, when tiny sundries enter the screw hole, the screw is influenced to rotate, the visual camera is enabled to move unevenly, and the tiny sundries entering the screw hole are cleaned and are time-consuming and labor-consuming.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide a visual positioning mechanism so as to solve the problems in the background art, and the utility model realizes the adjustment of the relative position of a visual camera and meets the requirements of collecting articles with different sizes.

In order to achieve the above object, the present utility model is realized by the following technical scheme: the utility model provides a visual positioning mechanism, includes the frame, the frame is U type structure, the screw rod that the frame rotation was connected with the level and arranges, screw rod one end and servo motor output fixed connection, servo motor and frame fixed connection, threaded connection has the removal seat on the screw rod, remove top sliding contact in seat upper end and the frame, surface mounting has the vision camera under the removal seat, the frame upside is equipped with the roof that the level was arranged, roof lower surface symmetry fixedly connected with two vertically arranged's electric putter, electric putter expansion end and frame fixed connection, two mounting holes that are used for alternate bolt have been seted up to roof upper surface symmetry, remove seat and screw rod threaded connection through the connecting piece.

Further, the connecting piece includes connecting portion, remove a side face and seted up the rectangle mouth, remove the seat face that deviates from the rectangle mouth and seted up with the communicating interlude hole of rectangle mouth, the screw rod runs through rectangle mouth and interlude hole, install two connecting portions in the rectangle mouth, the connecting portion cross section is the rectangle, connecting portion pass through screw and remove seat fixed connection, two connecting portion opposite face all has seted up the screw groove with screw rod matched with, the screw groove cross section is semi-circular, threaded rod threaded connection is in the space that two screw grooves formed, two connecting portion looks back all has certain clearance with the corresponding inner wall of rectangle mouth, two connecting portion looks back all install the support piece that is used for filling the clearance between connecting portion and the rectangle mouth inner wall.

Further, the support piece includes the supporting shoe, the supporting shoe is installed in the locating slot, the locating slot is offered in the one side that the connecting portion deviates from the screw thread groove, the one end processing that the supporting shoe is in the locating slot has first inclined plane, the locating slot communicates with each other with the storage tank, the storage tank cross section is the rectangle, the one side that the connecting portion deviates from wearing the jack is offered to the storage tank, slidable mounting has the sliding block that is used for jack-up supporting shoe in the storage tank, sliding block upper surface processing has the second inclined plane with first inclined plane matched with, one side fixedly connected with screw thread seat near the storage tank open end in the storage tank, screw thread seat internal thread connection has the threaded rod that is used for extrudeing the sliding block, the constant head tank has been offered to the one side that the screw thread seat was kept away from in the storage tank, the constant head tank cross section is the rectangle, slidable mounting has the reference column in the constant head tank, one side that the sliding block was kept away from to the reference column is equipped with the spring, the spring sets up in the constant head tank and arranges along the length direction of constant head tank.

Further, grooves are formed in two inner walls of the rectangular opening facing the supporting block, and the upper end of the supporting block extends into the grooves.

Further, one end of the connecting part, which is positioned outside the rectangular opening, is fixedly connected with a connecting plate, and the connecting plate is fixedly connected with the movable seat through a screw.

Further, the upper surface of the frame is provided with a strip-shaped opening, and the strip-shaped opening is arranged along the length direction of the frame.

The utility model has the beneficial effects that:

1. the electric push rod is controlled to extend or shrink, and then the electric push rod drives the frame to move, and the frame drives the visual camera to move downwards or upwards, so that the purpose of adjusting the distance between the visual camera and the conveying belt is achieved, the screw is driven to rotate during operation of the servo motor, the screw drives the movable seat to slide along the length direction of the screw, the purpose of adjusting the relative positions of the visual camera and the conveying belt in the horizontal direction is achieved, and the requirement for collecting articles with different sizes is met.

2. The connecting parts with the two processed threaded grooves are fixed in the rectangular opening through screws, the assembly of the connecting parts and the movable seat is completed, the threaded connection of the screw rod is enabled to be in a ring-shaped space formed by the two threaded grooves, the threaded connection of the screw rod and the movable seat is completed, the connecting parts and the movable seat are separated, and tiny sundries in the thread lines in the threaded grooves can be cleaned conveniently.

3. After the connecting part is arranged in the rectangular opening, a gap exists between the two opposite surfaces and the inner wall of the rectangular opening, so that a space is provided for the separation of the connecting part and the screw rod.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic view of a visual positioning mechanism according to the present utility model;

FIG. 2 is a schematic diagram illustrating the assembly of a connection portion and a movable base in a visual positioning mechanism according to the present utility model;

FIG. 3 is a cross-sectional view of a mobile seat in a visual positioning mechanism according to the present utility model;

FIG. 4 is a perspective view of a connecting portion of a visual positioning mechanism according to the present utility model;

FIG. 5 is a schematic view illustrating an assembly of a connection portion and a movable base in a visual positioning mechanism according to the present utility model;

in the figure: 1-frame, 2-screw rod, 3-movable seat, 4-vision camera, 5-servo motor, 6-bar mouth, 7-mounting hole, 8-roof, 9-electric putter, 10-rectangle mouth, 11-jack, 12-connecting portion, 13-spring, 14-reference column, 15-supporting shoe, 16-storage tank, 17-connecting plate, 18-threaded rod, 19-screw seat, 20-sliding block, 21-recess, 22-constant head tank, 23-constant head tank, 24-screw groove.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Referring to fig. 1, the present utility model provides a technical solution: a visual positioning mechanism comprises a frame 1 with a U-shaped structure, wherein a strip-shaped opening 6 is formed in the upper surface of the frame 1 and is arranged along the length direction of the frame 1, the contact area between a movable seat 3 and the frame 1 is reduced, and the movement resistance of the movable seat 3 is reduced.

Referring to fig. 1, a screw rod 2 which is horizontally arranged is rotationally connected to a frame 1, one end of the screw rod 2 is fixedly connected with the output end of a servo motor 5, the servo motor 5 is fixedly connected with the frame 1, a movable seat 3 is connected to the screw rod 2 in a threaded manner, the upper end of the movable seat 3 is in sliding contact with the inner top of the frame 1, the movable seat 3 is limited to rotate around the screw rod 2 by the aid of the frame 1, a visual camera 4 is mounted on the lower surface of the movable seat 3, the screw rod 2 is driven to rotate when the servo motor 5 works, the screw rod 2 drives the movable seat 3 to slide along the length direction of the screw rod 2, and the purpose of adjusting the relative positions of the visual camera 4 and a conveying belt in the horizontal direction is achieved.

Referring to fig. 1, the upper side of the frame 1 is provided with a top plate 8 which is horizontally arranged, bolts are installed in two installation holes 7 on the upper surface of the top plate 8, the bolts are installed at required positions, the fixing of the positions of the top plate 8 is completed, two vertically arranged electric push rods 9 are symmetrically and fixedly connected to the lower surface of the top plate 8, the movable ends of the electric push rods 9 are fixedly connected with the frame 1, the electric push rods 9 are controlled to extend or shrink, the electric push rods 9 further drive the frame 1 to move, the frame 1 drives the vision camera 4 to move downwards or upwards, the purpose of adjusting the distance between the vision camera 4 and a conveying belt is achieved, and the requirements for collecting articles with different sizes are met.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, a rectangular opening 10 is formed on one side surface of a movable seat 3, an insertion hole 11 communicated with the rectangular opening 10 is formed on one surface of the movable seat 3, which faces away from the rectangular opening 10, a screw rod 2 penetrates through the rectangular opening 10 and the insertion hole 11, two connecting parts 12 with rectangular cross sections are installed in the rectangular opening 10, one end of each connecting part 12, which is positioned outside the rectangular opening 10, is fixedly connected with a connecting plate 17, the connecting parts 17 and the movable seat 3 are connected through screws, the connecting parts 12 are limited in the rectangular opening 10, threaded grooves 24 matched with the screw rod 2 are formed on the opposite surfaces of the two connecting parts 12, the cross sections of the threaded grooves 24 are semicircular, the two connecting parts 12 with the threaded grooves 24 are fixed in the rectangular opening 10 through screws, the assembly of the connecting parts 12 and the movable seat 3 is completed, the screw rod 2 is connected in a ring-shaped space formed by the two threaded grooves 24, the threaded connection of the screw rod 2 and the movable seat 3 is completed, the connection of the connecting parts 12 and the movable seat 3 is separated, and fine impurities in the threaded lines in the threaded grooves 24 are conveniently entering the threaded grooves are cleaned.

Referring to fig. 2, 3, 4 and 5, after the connecting portion 12 is installed in the rectangular opening 10, a gap exists between two opposite back surfaces and the inner wall of the rectangular opening 10, a space is provided for separating the connecting portion 12 from the screw 2, supporting blocks 15 for filling the gap between the connecting portion 12 and the inner wall of the rectangular opening 10 are installed on the opposite back surfaces of the two connecting portions 12, the supporting blocks 15 are inserted into the positioning openings 23, the positioning openings 23 are formed on the surface of the connecting portion 12 facing away from the threaded grooves 24, a first inclined surface is processed at one end of the supporting blocks 15 in the positioning openings 23, the positioning openings 23 are communicated with a storage groove 16 with a rectangular cross section, the storage groove 16 is formed on the surface of the connecting portion 12 facing away from the through holes 11, sliding blocks 20 for jacking the supporting blocks 15 are slidably installed in the storage groove 16, second inclined surfaces matched with the first inclined surfaces are processed on the upper surfaces of the sliding blocks 20, a thread seat 19 is fixedly connected to one side, close to the opening end of the storage groove 16, a threaded rod 18 for extruding a sliding block 20 is connected to the thread seat 19 in a threaded manner, a positioning groove 22 with a rectangular cross section is formed in one surface, far away from the thread seat 19, of the storage groove 16, the positioning columns 14 of the sliding block 20 are inserted into the positioning groove 22 to limit the moving track of the sliding block 20, meanwhile, the positioning columns 14 extrude a spring 13 in the positioning groove 22 to elastically deform the spring 13, power is provided for the sliding block 20 to move towards the thread seat 19, after the connecting part 12 is arranged in the rectangular opening 10, the threaded rod 18 is screwed, the threaded rod 18 extrudes the sliding block 20, a second inclined surface on the sliding block 20 is matched with a first inclined surface on the supporting block 15, the upper end of the supporting block 15 extends into a groove 21 in the rectangular opening 10, the supporting block 15 is matched with the groove 21, and the mounting stability of the connecting part 12 is further improved, the reliability of the attachment of the connecting portion 12 is improved by the support of the support block 15.

Although the present disclosure describes embodiments, not every embodiment is described in terms of a single embodiment, and such description is for clarity only, and one skilled in the art will recognize that the embodiments described in the disclosure as a whole may be combined appropriately to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. Visual positioning mechanism, comprising a frame (1), characterized in that: the utility model provides a frame (1) is U type structure, frame (1) internal rotation is connected with screw rod (2) of horizontal arrangement, screw rod (2) one end and servo motor (5) output fixed connection, servo motor (5) and frame (1) fixed connection, threaded connection has on screw rod (2) and removes seat (3), remove top sliding contact in seat (3) upper end and the frame (1), remove seat (3) lower surface mounting has vision camera (4), frame (1) upside is equipped with roof (8) of horizontal arrangement, roof (8) lower surface symmetry fixedly connected with two vertically arranged electric putter (9), electric putter (9) expansion end and frame (1) fixed connection, two mounting holes (7) that are used for alternate the bolt are seted up to roof (8) upper surface symmetry, remove seat (3) and screw rod (2) threaded connection through the connecting piece.

2. A visual positioning mechanism as set forth in claim 1, wherein: the connecting piece comprises a connecting part (12), rectangular openings (10) are formed in one side face of the movable seat (3), penetrating holes (11) which are communicated with the rectangular openings (10) are formed in one face, away from the rectangular openings (10), of the movable seat (3), the threaded rods (2) penetrate through the rectangular openings (10) and the penetrating holes (11), two connecting parts (12) are mounted in the rectangular openings (10), the cross section of each connecting part (12) is rectangular, the connecting parts (12) are fixedly connected with the movable seat (3) through screws, threaded grooves (24) which are matched with the threaded rods (2) are formed in opposite faces of the connecting parts (12), the cross section of each threaded groove (24) is semicircular, the threaded rods (2) are connected in a space formed by the two threaded grooves (24), a certain gap is reserved between the back face of each connecting part (12) and the corresponding inner wall of the rectangular opening (10), and the back face of each connecting part (12) is provided with a supporting piece which is used for filling the gap between the connecting parts (12) and the inner wall of the rectangular opening (10).

3. A visual positioning mechanism as set forth in claim 2, wherein: the support piece comprises a support block (15), the support block (15) is inserted in a positioning opening (23), the positioning opening (23) is formed in one surface of a connecting part (12) deviating from a thread groove (24), a first inclined surface is processed at one end of the support block (15) in the positioning opening (23), the positioning opening (23) is communicated with a storage groove (16), the cross section of the storage groove (16) is rectangular, the storage groove (16) is formed in one surface of the connecting part (12) deviating from a through jack (11), a sliding block (20) for jacking the support block (15) is arranged in the storage groove (16) in a sliding manner, a second inclined surface matched with the first inclined surface is processed on the upper surface of the sliding block (20), a thread seat (19) is fixedly connected to one side of the storage groove (16) close to the opening end of the storage groove (16), a threaded rod (18) for extruding the sliding block (20) is connected in a thread way in the thread seat (19), the inner side of the storage groove (16) is far away from the thread seat (19), the sliding block (22) is arranged at one side of the sliding block (22) far away from the connecting part (12), the positioning column (14) is fixedly provided with the positioning column (14), the locating column (14) is equipped with spring (13) far away from one side of sliding block (20), spring (13) set up in constant head tank (22) and along the length direction of constant head tank (22) arrangement.

4. A visual positioning mechanism as set forth in claim 3, wherein: grooves (21) are formed in two inner walls, facing the supporting blocks (15), of the rectangular opening (10), and the upper ends of the supporting blocks (15) extend into the grooves (21).

5. A visual positioning mechanism as set forth in claim 2, wherein: one end of the connecting part (12) positioned outside the rectangular opening (10) is fixedly connected with a connecting plate (17), and the connecting plate (17) is fixedly connected with the movable seat (3) through a screw.

6. A visual positioning mechanism as set forth in claim 1, wherein: the upper surface of the frame (1) is provided with a strip-shaped opening (6), and the strip-shaped opening (6) is arranged along the length direction of the frame (1).