CN219258823U

CN219258823U - Material screening equipment

Info

Publication number: CN219258823U
Application number: CN202320212998.6U
Authority: CN
Inventors: 竹内匡弘
Original assignee: Mecahtro Tech Co ltd
Current assignee: Mecahtro Tech Co ltd
Priority date: 2023-02-15
Filing date: 2023-02-15
Publication date: 2023-06-27
Anticipated expiration: 2033-02-15

Abstract

A material screening equipment belongs to the material loading equipment field for solve the problem that current material loading equipment can not be better screening external shape has obvious characteristic material, material screening equipment includes: the device comprises a supporting seat, a low-frequency vibration rotary table, a mechanical arm, an image acquisition unit and a control module, wherein the low-frequency vibration rotary table and the mechanical arm are arranged on the supporting seat, the mechanical arm is arranged on the periphery of the low-frequency vibration rotary table, the image acquisition unit is arranged above the low-frequency vibration rotary table through a bracket, the control module is respectively electrically connected with the low-frequency vibration rotary table, the mechanical arm and the image acquisition unit, and the control module is configured to control the operation or stop of the low-frequency vibration rotary table and the mechanical arm according to the end face images of materials acquired by the image acquisition unit. The utility model has the advantages that the external shape can be effectively screened without obvious characteristics, the universality is strong, and the effective screening can be completed only by modifying the qualified end face image of the material after the material type to be screened is replaced.

Description

Material screening equipment

Technical Field

The utility model belongs to the field of feeding equipment, and particularly relates to material screening equipment.

Background

The vibration plate is a relatively common auxiliary feeding device of an automatic assembly or automatic processing machine, outputs materials through a channel with a certain inclination and high-frequency vibration, and orderly conveys out the materials at the correct position by adopting a special filtering structure, but the filtering structure is specially designed according to different materials, and is more suitable for the materials with relatively obvious appearance structural characteristics, such as a bottle cap, a sleeve, a nut and the like, and the elements have obvious concave, protruding or special outlines, so that the filtering structure can be effectively screened without being very complicated. For materials with complex shapes or less obvious structural characteristics, the number of the filtering structures needs to be increased, the design difficulty of the filtering structures can be increased and even the filtering structures are difficult to realize, more efforts and cost are required, and otherwise, the effective filtering elements cannot be realized. While the external shape of some electronic component materials, for example, often does not have obvious characteristics, strict requirements are placed on the front and back sides or the orientation of the interfaces of the components during feeding, and therefore, a material screening device that can effectively identify the inconspicuous external shape characteristics and that does not require a special design of the filtering structure is needed.

In the prior art, the utility model patent application with the application number of 201910618235X discloses an automatic feeding machine for image recognition of a vibrating disk, and feeding is realized through combination of the vibrating disk and a mechanical arm, but according to the text description and the drawing, a guide plate and a filtering structure are still arranged on the vibrating disk, the mechanical arm picks up materials which are screened by the vibrating disk, the external shape is not obvious, and the materials with strict requirements on the front and back surfaces or the interface orientation of an element still cannot be effectively grabbed.

Disclosure of Invention

In order to solve the problems, the utility model provides a material screening device.

The utility model adopts the following technical scheme:

a material screening apparatus comprising: the device comprises a supporting seat, a low-frequency vibration rotary table, a mechanical arm, an image acquisition unit and a control module, wherein the low-frequency vibration rotary table and the mechanical arm are arranged on the supporting seat, the mechanical arm is arranged on the periphery of the low-frequency vibration rotary table, the image acquisition unit is arranged above the low-frequency vibration rotary table through a bracket, the control module is respectively electrically connected with the low-frequency vibration rotary table, the mechanical arm and the image acquisition unit, and the control module is configured to control the operation or stop of the low-frequency vibration rotary table and the mechanical arm according to the end face images of materials acquired by the image acquisition unit.

Optionally, the image acquisition unit is configured to acquire an end face image, position coordinates and contour coordinates of the material on the low-frequency vibration rotary table facing upwards and transmit the end face image, the position coordinates and the contour coordinates to the control module, the control module is configured to compare the acquired end face image with a qualified end face image of the material pre-stored in the control module, after the comparison is qualified, the low-frequency vibration rotary table is controlled to stop, the mechanical arm is controlled to advance to a grabbing position according to the received position coordinates, the mechanical arm acquires the material, and then the mechanical arm is controlled to perform angle compensation according to the received contour coordinates, so that the material is rotated to a correct direction.

Optionally, the low-frequency vibration rotary table includes: the rotary driving unit is arranged at the bottom of the mounting seat and connected with the center of the rotary disc through a transmission piece to drive the rotary disc to rotate, and the vibration driving unit is arranged on the mounting seat and contacted with the bottom of the rotary disc to drive the rotary disc to generate low-frequency vibration.

Optionally, the swing drive unit includes a gear motor, and the vibration drive unit includes a low frequency vibrator.

Optionally, the mounting base includes: the vibration driving device comprises a bottom plate and a baffle plate arranged at the edge of the bottom plate, wherein a first opening for a transmission member to pass through and a second opening for installing a vibration driving unit are arranged on the bottom plate.

Optionally, a claw or a suction nozzle for acquiring the material is arranged at the grabbing end of the mechanical arm.

Optionally, the baffle is provided with a protruding guide.

Optionally, the material screening device further comprises a feeding component, the feeding component is arranged on the supporting seat, and the output end of the feeding component extends to the low-frequency vibration rotary table to input the material to be screened.

Optionally, the feed assembly comprises: hopper, conveyer belt subassembly and stock guide, the hopper sets up in conveyer belt subassembly top, the stock guide sets up the discharge end at the conveyer belt subassembly, be provided with feed drive unit drive conveyer belt motion in the conveyer belt subassembly.

Optionally, the material screening device further comprises an illuminating lamp plate, and the illuminating lamp plate is arranged on the support and is close to the image acquisition unit.

The utility model has the advantages that the external shape can be effectively screened without obvious characteristics, the materials with strict requirements on the front and back surfaces or the interface orientations of the elements can be effectively screened by the mechanical arm without independently designing a screening structure only by pre-storing the qualified end face images of the materials in the control module and acquiring and identifying the materials meeting the requirements through the image acquisition unit, and the effective screening can be completed by modifying the qualified end face images of the materials after the material types to be screened are replaced.

Drawings

FIG. 1 is a schematic view of a first view angle structure according to the present utility model;

FIG. 2 is a schematic view of a second view angle structure according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a low frequency vibration turntable according to the present utility model;

fig. 4 is a schematic view of the structure of the mounting base of the present utility model.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Embodiment one:

as shown in fig. 1 and 2, a material screening apparatus includes: the device comprises a supporting seat 1, a low-frequency vibration rotary table 2, a mechanical arm 3, an image acquisition unit 4 and a control module, wherein the low-frequency vibration rotary table 2 and the mechanical arm 3 are arranged on the supporting seat 1, the mechanical arm 3 is arranged on the periphery of the low-frequency vibration rotary table 2, the image acquisition unit 4 is arranged above the low-frequency vibration rotary table 2 through a bracket, the control module is respectively electrically connected with the low-frequency vibration rotary table 2, the mechanical arm 3 and the image acquisition unit 4, and the control module is configured to control the operation or stop of the low-frequency vibration rotary table 2 and the mechanical arm 3 according to the end face images of materials acquired by the image acquisition unit 4.

As shown in fig. 1 and 2, the image acquisition unit 4 is configured to acquire an end face image, position coordinates and contour coordinates of the material on the low-frequency vibration rotary table 2 facing upwards and transmit the end face image, the control module is configured to compare the acquired end face image with a qualified end face image of the material pre-stored in the control module, control the low-frequency vibration rotary table 2 to stop after the comparison is qualified and control the mechanical arm 3 to travel to a grabbing position according to the received position coordinates to acquire the material, and control the mechanical arm 3 to perform angle compensation according to the received contour coordinates to rotate the material to a correct orientation after the mechanical arm 3 acquires the material. The image acquisition unit 4 can adopt an industrial camera and can acquire the material image rapidly and clearly.

As shown in fig. 1, 2 and 3, the low-frequency vibration turntable 2 includes: the rotary driving unit 23 is arranged at the bottom of the mounting seat 21 and is connected with the center of the rotary disc 22 through a transmission piece to drive the rotary disc 22 to rotate, the vibration driving unit 24 is arranged on the mounting seat 21 and is contacted with the bottom of the rotary disc 22 to drive the rotary disc 22 to generate low-frequency vibration, the rotary driving unit 23 comprises a speed reducing motor, and the vibration driving unit 24 comprises a low-frequency vibrator. The low-frequency vibration rotary table 2 enables the material placed on the rotary disc 22 to change the posture or turn over along with vibration through slow rotation and low-frequency vibration, and enables the material to slowly rotate along with the rotary disc 22 to pass through the detection area of the image acquisition unit 4, so that the image acquisition unit 4 can accurately identify the material in the detection area.

As shown in fig. 3 and 4, the mounting base 21 includes: the base plate 211 and set up the baffle 212 at the edge of base plate 211, be provided with the first opening 213 that lets the driving medium pass through and install the second opening 214 of vibration drive unit 24 on the base plate 211, the baffle 212 is used for restricting the material inside, lets rotary disk 22 drive the material removal.

The grabbing end of the mechanical arm 3 is provided with a claw or a suction nozzle for acquiring materials, and the mechanical arm 3 can adopt an industrial mechanical arm 3 with the model of Epson LS6-B502S and act according to a control signal sent by a control module.

During operation, the material is put into the low-frequency vibration rotary table 2, along with low-frequency vibration and slow rotation, the material on the low-frequency vibration rotary table 2 can be tiled on the low-frequency vibration rotary table 2, the material changes the posture along with vibration and rotates into a detection area of the image acquisition unit 4 along with the rotary disc 22, when the image acquisition unit 4 detects that an image conforming to a qualified end face exists in an end face image of the material, the low-frequency vibration table is controlled to stop, the mechanical arm 3 is enabled to grasp the material and conduct angle compensation adjustment to the correct direction, and then the material is output to finish the screening of the material.

Embodiment two:

as shown in fig. 3 and 4, this embodiment is substantially the same as the above embodiment, except that a protruding guiding portion 215 is provided on the baffle 212, so that during the rotation of the rotary disc 22, the material moves along the surface of the guiding portion 215 to dial the material to a position near the middle of the rotary disc 22, so that the image capturing unit 4 can capture information and the manipulator can capture information conveniently.

Embodiment III:

as shown in fig. 1 and 2, this embodiment is basically the same as the above embodiment, except that the material screening apparatus further includes a feeding assembly 5, the feeding assembly 5 is disposed on the supporting seat 1, and an output end of the feeding assembly 5 extends to the low-frequency vibration rotary table 2 to input the material to be screened.

As shown in fig. 1 and 2, the feeding assembly 5 includes: the conveyor belt assembly 52 comprises a hopper 51, a conveyor belt assembly 52 and a material guide plate 53, wherein the hopper 51 is arranged above the conveyor belt assembly 52, the material guide plate 53 is arranged at the discharge end of the conveyor belt assembly 52, and a material supply driving unit 54 is arranged in the conveyor belt assembly 52 to drive the conveyor belt to move. The feeding component 5 is used for feeding materials, the materials are conveyed into the low-frequency vibration rotary table 2 through the conveying belt and the material guide plate 53, and the automatic feeding of the materials and the control of the material entering rate can be realized through controlling the rotation of the conveying belt.

Embodiment four:

as shown in fig. 1 and 2, this embodiment is basically the same as the above embodiment, except that the material screening apparatus further includes an illumination lamp plate 6, where the illumination lamp plate 6 is disposed on the support and is close to the image acquisition unit 4, and is used for illuminating the material on the low-frequency vibration turntable, so that the image acquisition unit can better acquire the material image.

Claims

1. A material screening apparatus, comprising: the device comprises a supporting seat (1), a low-frequency vibration rotary table (2), a mechanical arm (3), an image acquisition unit (4) and a control module, wherein the low-frequency vibration rotary table (2) and the mechanical arm (3) are arranged on the supporting seat (1), the mechanical arm (3) is arranged on the periphery of the low-frequency vibration rotary table (2), the image acquisition unit (4) is arranged above the low-frequency vibration rotary table (2) through a support, the control module is respectively electrically connected with the low-frequency vibration rotary table (2), the mechanical arm (3) and the image acquisition unit (4), and the control module is configured to control the operation or stop of the low-frequency vibration rotary table (2) and the mechanical arm (3) according to a material end face image acquired by the image acquisition unit (4).

2. The material screening device according to claim 1, wherein the image acquisition unit (4) is configured to acquire an upward facing end face image, position coordinates and contour coordinates of the material on the low frequency vibration turret (2) and transmit the acquired end face image to the control module, the control module is configured to compare the acquired end face image with a pre-stored qualified end face image of the material in the control module, control the low frequency vibration turret (2) to stop after the comparison is qualified and control the mechanical arm (3) to travel to a grabbing position according to the received position coordinates to acquire the material, and control the mechanical arm (3) to perform angle compensation according to the received contour coordinates to rotate the material to a correct orientation after the mechanical arm (3) acquires the material.

3. The material screening apparatus according to claim 1, wherein the low frequency vibratory turret (2) comprises: the rotary disc type vibrating device comprises a mounting seat (21), a rotary disc (22), a rotary driving unit (23) and a vibrating driving unit (24), wherein the rotary disc (22) is movably arranged on the mounting seat (21), the rotary driving unit (23) is arranged at the bottom of the mounting seat (21) and is connected with the center of the rotary disc (22) through a transmission piece to drive the rotary disc (22) to rotate, and the vibrating driving unit (24) is arranged on the mounting seat (21) and is contacted with the bottom of the rotary disc (22) to drive the rotary disc (22) to generate low-frequency vibration.

4. A material screening apparatus according to claim 3, wherein the swing drive unit (23) comprises a gear motor and the vibration drive unit (24) comprises a low frequency vibrator.

5. A material screening apparatus according to claim 3, wherein the mounting (21) comprises: the vibration driving device comprises a bottom plate (211) and a baffle plate (212) arranged at the edge of the bottom plate (211), wherein a first opening (213) for a transmission member to pass through and a second opening (214) for installing a vibration driving unit (24) are arranged on the bottom plate (211).

6. The material screening apparatus according to claim 1, characterized in that the gripping end of the robot arm (3) is provided with a claw or a suction nozzle for taking material.

7. The material screening apparatus according to claim 5, characterized in that the baffle (212) is provided with protruding guides (215).

8. The material screening apparatus according to claim 1, further comprising a feed assembly (5), the feed assembly (5) being arranged on the support base (1), the output end of the feed assembly (5) extending to the low frequency vibratory turret (2) for feeding material to be screened.

9. The material screening apparatus according to claim 8, wherein the feed assembly (5) comprises: hopper (51), conveyer belt subassembly (52) and stock guide (53), hopper (51) set up in conveyer belt subassembly (52) top, stock guide (53) set up the discharge end at conveyer belt subassembly (52), be provided with feed drive unit (54) in conveyer belt subassembly (52) and drive the conveyer belt motion.

10. The material screening apparatus according to claim 1, further comprising a lighting lamp panel (6), the lighting lamp panel (6) being arranged on the support close to the image acquisition unit (4).