CN219275018U

CN219275018U - Screw feeding system

Info

Publication number: CN219275018U
Application number: CN202320161210.3U
Authority: CN
Inventors: 许锋; 邹凡; 龚立希
Original assignee: Panasonic Factory Solutions Suzhou Co Ltd
Current assignee: Panasonic Factory Solutions Suzhou Co Ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-06-30
Anticipated expiration: 2033-02-07

Abstract

The utility model discloses a screw feeding system, and relates to the technical field of automatic production. The technical scheme is characterized by comprising a screw receiving mechanism and a plurality of screw blowing machines; the screw receiving mechanism comprises a plurality of screw tracks which are arranged in parallel; the screw tracks are obliquely arranged; a material guiding hose communicated with the positioning cylinder is arranged on the screw blowing machine; the screw blowing machine blows the screw into the guide hose, the screw passes through the positioning cylinder after being discharged from the guide hose and falls on the screw track, and then the screw moves downwards along the screw track under the action of dead weight to be in contact with the positioning assembly. According to the screw feeding device, the screw blowing machine is used for storing and feeding screws, and then the obliquely arranged screw tracks are used for receiving the screws, so that the system can be provided with screws with more specifications, the application range of the system is improved, and the screw blowing machine is arranged independently of the screw batching rack, so that the volume of the screw batching rack is convenient to optimize.

Description

Screw feeding system

Technical Field

The utility model relates to the technical field of automatic production, in particular to a screw feeding system.

Background

In the mechanical manufacturing process, for example, the assembly process of the equipment, each assembly part needs to use corresponding screws and gaskets as required. To avoid errors, each assembly part is provided with a special cartridge. Meanwhile, in order to facilitate the operator to take and confirm whether the gaskets are matched, the screws are required to be placed upside down, namely the heads of the screws face downwards, so that whether the gaskets are arranged on the screws can be directly observed.

At present, placing the screw in the magazine and establishing the gasket cover on the screw, all be manual operation, production efficiency is lower like this. Meanwhile, under the condition that the number of different assembly parts is large, the situation of mismatching is easy to occur.

In order to improve the efficiency and quality of the screw and spacer arrangement, automated equipment may be designed to specifically arrange the screw and spacer.

However, the screw specifications are very many, if the screw feeding is performed by adopting a conventional vibration disc, a vibration disc needs to be configured for each screw specification, which results in very large equipment size, is unfavorable for clamping and placing the screws, and also can limit the number of the screw specifications to affect the application range of the equipment.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a screw feeding system which adopts a screw blowing machine to store and feed screws and then adopts a screw track which is obliquely arranged to receive the screws, so that the system can be provided with screws with more specifications, the application range of the system is improved, and the screw blowing machine is arranged independently of a screw batching rack, so that the volume of the screw batching rack is conveniently optimized.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a screw feed system comprising:

a screw batching stand;

the screw material receiving mechanisms are carried on the screw material mixing rack, and the number of the screw material receiving mechanisms is one or more; the screw receiving mechanism comprises a plurality of screw tracks which are arranged in parallel; the screw track is obliquely arranged, and a positioning assembly is arranged at the lower end of the screw track;

the screw blowing machines are corresponding to the screw tracks in number; the screw blowing machine is provided with a guide hose, and the outlet end of the guide hose is opposite to the screw track;

the screw blowing machine blows screws into the guide hose, the screws fall on the screw track after being discharged from the guide hose, and then the screws move downwards along the screw track under the action of dead weight to be in contact with the positioning assembly.

Further, the system further comprises a blowing machine rack for bearing the screw blowing machine, wherein the blowing machine rack is of a single-layer structure or a multi-layer structure, and the number of the blowing machine racks is one or more.

Further, the screw track comprises two guide plates which are arranged in parallel, and the screw comprises a thread section and a screw head; after the screw falls on the screw track, the screw thread section is embedded between the two guide plates, and the screw head is contacted with the top walls of the two guide plates at the same time.

Further, the positioning assembly comprises a positioning baffle matched with the threaded section and a positioning screw matched with the screw head; an auxiliary fixing plate is arranged between the positioning baffle and the positioning screw.

Further, two openings are symmetrically formed at the end part of the positioning screw, so that a stop plate contacted with the screw head is formed at the end part of the positioning screw; the stop plates are vertically arranged.

Further, the screw receiving mechanism further comprises a positioning cylinder communicated with the material guiding hose, and the positioning cylinder is fixedly arranged above the screw track; the screw is discharged after passing through the material guiding hose and the positioning cylinder and falls on the screw track.

Further, a through hole is formed in the positioning barrel and opposite to the through hole between the two guide plates, a side outlet matched with the screw head is formed in the bottom end of the side wall of the positioning barrel, and the side outlet is communicated with the through hole.

Further, a limiting pressing plate matched with the screw head is arranged above the screw track, and the limiting pressing plate, the positioning assembly and the two guide plates are matched with each other at the lower end of the screw track to form an open screw taking hole.

Further, the system also comprises a plurality of proximity sensors which are in one-to-one correspondence with the screw tracks; the proximity sensor is arranged above the screw track, and a buffer area is formed between the proximity sensor and the positioning assembly on the screw track; the proximity sensor is connected with a screw blowing machine, and the screw blowing machine executes blowing action according to the signal of the proximity sensor.

Further, the system also comprises a screw overturning mechanism arranged on the screw batching bench; the screw turnover mechanism comprises a linear driving assembly, a rotary cylinder arranged on the linear driving assembly, a linear cylinder arranged on the rotary cylinder and a clamping jaw cylinder arranged on the linear cylinder; the screw tracks are arranged in parallel along a first direction, and the linear driving assembly can drive the rotary cylinder to move along the first direction.

In summary, the utility model has the following beneficial effects:

1. the screw blowing machine is used for storing and feeding screws and blows the screws through the guide hose, so that the screw blowing machine can be arranged independently of the screw batching rack, and the volume of the screw batching rack is convenient to optimize; meanwhile, a plurality of screw blowing machines can be arranged to store screws with different specifications respectively, so that the application range of the system is improved;

2. the screw receiving mechanism comprises a plurality of screw tracks which are arranged in parallel, so that the volume of the screw receiving mechanism is reduced; the screw track which is obliquely arranged can adjust the gesture of the screw on one hand, is convenient for subsequent transportation and turnover of the screw, and on the other hand, the movement of the screw is realized by utilizing the dead weight, so that the structure can be simplified, and the screw track is convenient to arrange;

3. the screw turnover mechanism is adopted to adjust the posture of the screw, so that the beat is optimized, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of a screw feed system according to an embodiment;

FIG. 2 is a schematic view of a screw batching stand according to the present embodiment;

FIG. 3 is a schematic structural diagram of a screw receiving mechanism and a screw turning mechanism according to an embodiment;

FIG. 4 is a schematic structural view of a screw receiving mechanism according to an embodiment;

FIG. 5 is a schematic view of a positioning assembly according to an embodiment;

fig. 6 is a schematic structural diagram of a positioning tube and a positioning cylinder in an embodiment.

In the figure: 1. a screw batching stand; 2. a screw receiving mechanism; 21. a first support frame; 22. fixing the support plate; 23. a guide plate; 24. a limit pressing plate; 25. a positioning assembly; 251. positioning a baffle; 252. an auxiliary fixing plate; 253. a set screw; 2531. a stop plate; 26. a proximity sensor; 27. a second support frame; 28. an angle plate; 3. a blowing machine rack; 31. a hose support; 4. a screw blowing machine; 41. a material guiding hose; 42. a positioning tube; 43. a positioning cylinder; 431. a through hole; 432. a side outlet; 51. a linear drive assembly; 52. a rotary cylinder; 53. a straight line cylinder; 54. a clamping jaw cylinder; 6. screw transport mechanism.

Description of the embodiments

The present utility model will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Examples

1-6, it includes screw batching rack 1, sets up screw receiving mechanism 2 and a plurality of screw blowing machine 4 on screw batching rack 1: the number of the screw receiving mechanisms 2 is one or more; the screw receiving mechanism 2 comprises a plurality of screw tracks which are arranged in parallel; the screw track is obliquely arranged, the upper end of the screw track is provided with a positioning cylinder 43, and the lower end of the screw track is provided with a positioning assembly 25; the number of the screw blowing machines 4 corresponds to the number of the screw tracks, and the screw blowing machines 4 are provided with guide hoses 41 communicated with the positioning cylinders 43; the screw blowing machine 4 blows screws into the guide hose 41, the screws pass through the positioning cylinder 43 after being discharged from the guide hose 41 and fall on the screw track, and then the screws move downwards along the screw track under the action of self weight to be in contact with the positioning assembly 25.

Referring to fig. 1 to 6, in the present embodiment, the screw blowing machine 4 is used for storing and feeding screws, and the screw blowing machine 4 is communicated with the positioning cylinder 43 through the guide hose 41, so that the screw blowing machine 4 can be arranged independently of the screw batching stand 1, which is convenient for optimizing the volume of the screw batching stand 1; meanwhile, a plurality of screw blowing machines can be arranged to store screws with different specifications respectively, so that the application range of the system is improved; in this embodiment, the screw material receiving mechanism 2 is disposed on the screw material dispensing stand 1 to receive the screws blown out from the material guiding hose 41, and the screw material receiving mechanism 2 includes a plurality of screw tracks arranged in parallel, so that the volume of the screw material receiving mechanism 2 is reduced; the screw track which is obliquely arranged can adjust the gesture of the screw on one hand, is convenient for subsequent transportation and turnover of the screw, and on the other hand, the movement of the screw is realized by utilizing the dead weight, so that the structure can be simplified, and the screw track is convenient to arrange; adopt positioning cylinder 43 and guide hose 41 intercommunication, positioning cylinder 43 can carry out preliminary gesture correction to the screw of discharging in the guide hose 41 for the screw can fall smoothly on the screw track.

Referring to fig. 1 and 2, the system in this embodiment further includes a blowing machine stand 3 for carrying screw blowing machines 4, where the blowing machine stand 3 has a single-layer structure or a multi-layer structure, and the number of blowing machine stands 3 is one or more; specifically, four blowing machine racks 3 are arranged in the embodiment, and each blowing machine rack 3 has a three-layer structure; the top end of the blowing machine bench 3 is provided with a hose bracket 31 for arranging the material guide hoses 41, so that the orderly arrangement of a plurality of material guide hoses 41 can be realized; in the embodiment, four screw material receiving mechanisms 2 are arranged on a screw material mixing rack 1, the four screw material receiving mechanisms 2 are respectively arranged on two sides of the screw material mixing rack 1, and two screw material receiving mechanisms 2 which are arranged at intervals are arranged on one side of the screw material mixing rack 1, so that more screw material receiving mechanisms 2 are arranged on the screw material mixing rack 1; the number of the screw blowing machine 4 and the screw tracks in the embodiment can be adjusted according to the needs, and the screw blowing machine is not limited herein; in this embodiment, the screw blowing machine 4 belongs to the prior art, and will not be described herein.

Referring to fig. 1 to 6, one screw rail in the present embodiment includes two guide plates 23 arranged in parallel, that is, the screw receiving mechanism 2 includes a plurality of guide plates 23 arranged in parallel; the screw comprises a thread section and a screw head; after the screw falls on the screw track, the screw thread section is embedded between the two guide plates 23, and the screw heads are simultaneously contacted with the top walls of the two guide plates 23; that is, when the screw moves on the screw track, the screw head faces upwards; two guide plates 23 are adopted to form a screw track, so that the structure is simple and the arrangement is convenient; when the screw moves on the screw track, the thread segments are embedded between the two guide plates 23, and the screw heads are contacted with the top wall of the guide plate 23, so that the stability of the movement of the screw is improved; of course, in other alternative embodiments, two adjacent screw tracks may share a guide plate, which is not limited herein; the screw receiving mechanism 2 further comprises a first supporting frame 21 and a second supporting frame 27, the second supporting frame 27 is connected with the screw batching bench 1, and an angle plate 28 is arranged between the first supporting frame 21 and the second supporting frame 27; the first supporting frame 21 is provided with a fixed supporting plate 22 connected with a guide plate 23; the first support frame 21 is connected with the second support frame 27 through the angle plate 28, so that the inclination angle of the screw track is conveniently adjusted, and the screw can smoothly move downwards under the action of dead weight; preferably, a limit pressing plate 24 matched with the screw head is arranged above the screw track, the limit pressing plate 24 extends upwards from the lower end of the screw track, and the length of the limit pressing plate 24 is smaller than that of the screw track; a limiting pressing plate 24 is arranged above the lower end part of the screw track, and the limiting pressing plate 24 is arranged in parallel with the guide plate 23, so that the screw can be limited, and the screw is prevented from being separated from the screw track after jumping or being overturned under the action of inertia; specifically, the limit pressing plate 24 is provided with a bent portion connected to the side wall of the guide plate 23, so that the limit pressing plate 24 can be located above the guide plate 23.

Referring to fig. 1 to 6, the positioning assembly 25 in this embodiment includes a positioning plate 251 mounted on the first supporting frame 21, the positioning plate 251 extending between the two guide plates 23, the positioning plate 251 being used for positioning the threaded section of the screw; the positioning assembly 25 further comprises an auxiliary fixing plate 252 arranged on the positioning baffle 251, and a positioning screw 253 is arranged on the auxiliary fixing plate 252, wherein the positioning screw 253 is used for positioning the screw head of the screw; that is, when the screw moves from the screw track to the lower end, the thread section of the screw contacts the positioning baffle 251, and the screw head of the screw contacts the positioning screw 253, so that stability and consistency of the screw posture are guaranteed, the screw is conveniently clamped, and the success rate of clamping is improved; preferably, two openings are symmetrically arranged at the end of the positioning screw 253, so that a stop plate 2531 contacted with the screw head is formed at the end of the positioning screw 253, and the stop plate 2531 is vertically arranged; the stop plate 2531 is in contact with the screw head for positioning, so that a larger clamping space can be provided for the screw head, and the clamping success rate can be improved; specifically, the positioning screw 253 passes through the auxiliary fixing plate 252, two nuts respectively positioned at two sides of the auxiliary fixing plate 252 are screwed on the positioning screw 253, the positioning screw 253 is locked by adopting the two nuts, and meanwhile, the angle of the positioning screw 253 is conveniently adjusted, so that the stop plate 2531 is in a vertical state; the limit pressing plate 24, the positioning assembly 25 and the two guide plates 23 are matched at the lower end of the screw track to form an open screw taking hole, the screw is positioned at the screw taking hole after being contacted with the positioning assembly 25, at the moment, the screw head is in a naked state, and the limit pressing plate 24 does not shield the screw head, so that the screw is taken out from the screw track conveniently.

Referring to fig. 1-6, the system preferably further includes a plurality of proximity sensors 26 in one-to-one correspondence with the screw tracks; the proximity sensor 26 is arranged above the screw track, and a buffer area is formed between the proximity sensor 26 and the positioning component 25 on the screw track; the proximity sensor 26 is connected with the screw blowing machine 4, and the screw blowing machine 4 performs blowing action according to the signal of the proximity sensor 26; that is, the buffer area on the screw track is provided with a plurality of screws in advance, which is beneficial to improving the production efficiency; when the screw at the lower end of the screw track is taken out, the screw in the buffer area moves downwards by one screw position, and at the moment, the proximity sensor 26 cannot identify the screw, then a signal is sent to the screw blowing machine 4, the screw blowing machine 4 performs a blowing action to supplement the screw, and when the proximity sensor 26 identifies the screw again, then a signal is sent to the screw blowing machine 4, and the screw blowing machine 4 stops blowing action; that is, the proximity sensor 26 serves as a switch of the screw blower 4 to allow the buffer area to be always filled with the material, thereby improving the productivity.

Referring to fig. 1 to 6, in particular, a through hole 431 is provided in the positioning cylinder 43 between the two guide plates 23, a side outlet 432 is provided at the bottom end of the side wall of the positioning cylinder 43, which is engaged with the screw head, and the side outlet 432 communicates with the through hole 431; the screw passes through the through hole 431 and falls on the screw track, and then the screw moves downwards from the side outlet under the action of dead weight, so that the screw is separated from the positioning cylinder 43; the arrangement of the side outlet can limit the screw, limit the moving direction of the screw, and is beneficial to improving the stability of the system; specifically, the screw receiving mechanism 2 in this embodiment further includes an auxiliary bracket connected to the plurality of positioning cylinders 43 at the same time, where the auxiliary bracket is fixedly disposed relative to the first support frame 21, so that the relative position between the positioning cylinders 43 and the screw track remains unchanged; in the embodiment, the positioning cylinder 43 is positioned above the guide plate 23, and the positioning cylinder 43 is not contacted with the guide plate 23, so that the screw is prevented from being blocked; preferably, the positioning tube 42 communicated with the guide hose 41 is arranged on the positioning tube 43, and the positioning tube 42 is a hard tube, so that the screw is conveniently connected with the guide hose 41, and the posture of the screw can be adjusted.

Referring to fig. 1 to 6, a screw carrying mechanism 6 is provided on a screw dispensing stand 1, the screw carrying mechanism 6 including a robot arm and a clamping assembly provided on the robot arm; the screw carrying mechanism 6 is used for clamping the threaded section of the screw and then placing the screw head downwards in the material box; the screw on the screw track is in a state that the screw head is upward, so the system in the embodiment also comprises a screw turnover mechanism arranged on the screw batching bench 1, wherein the screw turnover mechanism is used for clamping the screw on the screw track and turning the screw into a vertical state that the screw head is downward, thereby being convenient for clamping the screw carrying mechanism 6; specifically, the screw turnover mechanism in the present embodiment includes a linear driving assembly 51, a rotary cylinder 52 provided on the linear driving assembly 51, a linear cylinder 53 provided on the rotary cylinder 52, and a jaw cylinder 54 provided on the linear cylinder 53; the screw tracks are arranged in parallel along the first direction, and the linear driving assembly 51 can drive the rotary air cylinder 52 to move along the first direction, so that screws on different screw tracks can be respectively clamped; the linear driving assembly 51 drives the rotary cylinder 52 to move so that the clamping jaw cylinder 54 is opposite to the screw track, the rotary cylinder 52 drives the linear cylinder 53 to rotate so that the clamping jaw cylinder 54 is opposite to the screw, then the linear cylinder 53 drives the clamping jaw cylinder 54 to move to the position of the screw, and then the clamping jaw cylinder 54 clamps the screw head of the screw; the linear air cylinder 53 and the rotary air cylinder 52 are reset in sequence, at the moment, the screw on the clamping jaw air cylinder 54 is in a vertical state, and the screw head faces downwards; then the mechanical arm drives the clamping assembly to move to the position of the screw and clamps the thread section of the screw, and then the clamping jaw air cylinder 54 is loosened to realize the connection of the screw; in the embodiment, the screw turnover mechanism is adopted to adjust the posture of the screw, so that the beat is optimized, and the production efficiency is improved.

Claims

1. A screw feed system, characterized in that: comprising the following steps:

a screw batching stand;

2. The screw feed system of claim 1, wherein: the system also comprises a blowing machine rack for bearing the screw blowing machine, wherein the blowing machine rack is of a single-layer structure or a multi-layer structure, and the number of the blowing machine racks is one or more.

3. The screw feed system of claim 1, wherein: the screw track comprises two guide plates which are arranged in parallel, and the screw comprises a thread section and a screw head; after the screw falls on the screw track, the screw thread section is embedded between the two guide plates, and the screw head is contacted with the top walls of the two guide plates at the same time.

4. A screw feed system according to claim 3, wherein: the positioning assembly comprises a positioning baffle matched with the thread section and a positioning screw matched with the screw head; an auxiliary fixing plate is arranged between the positioning baffle and the positioning screw.

5. The screw feed system of claim 4, wherein: two openings are symmetrically formed at the end part of the positioning screw, so that a stop plate contacted with the screw head is formed at the end part of the positioning screw; the stop plates are vertically arranged.

6. A screw feed system according to claim 3, wherein: the screw receiving mechanism further comprises a positioning cylinder communicated with the guide hose, and the positioning cylinder is fixedly arranged above the screw track; the screw is discharged after passing through the material guiding hose and the positioning cylinder and falls on the screw track.

7. The screw feed system of claim 6, wherein: the positioning cylinder is internally provided with a through hole between two guide plates, the bottom end of the side wall of the positioning cylinder is provided with a side outlet matched with the screw head, and the side outlet is communicated with the through hole.

8. A screw feed system according to claim 3, wherein: a limit pressing plate matched with the screw head is arranged above the screw track, the limiting pressing plate, the positioning assembly and the two guide plates are matched at the lower end of the screw track to form an open screw material taking opening.

9. The screw feed system of claim 1, wherein: the system also comprises a plurality of proximity sensors which are in one-to-one correspondence with the screw tracks; the proximity sensor is arranged above the screw track, and a buffer area is formed between the proximity sensor and the positioning assembly on the screw track; the proximity sensor is connected with a screw blowing machine, and the screw blowing machine executes blowing action according to the signal of the proximity sensor.

10. The screw feed system of claim 1, wherein: the system also comprises a screw overturning mechanism arranged on the screw batching bench; the screw turnover mechanism comprises a linear driving assembly, a rotary cylinder arranged on the linear driving assembly, a linear cylinder arranged on the rotary cylinder and a clamping jaw cylinder arranged on the linear cylinder; the screw tracks are arranged in parallel along a first direction, and the linear driving assembly can drive the rotary cylinder to move along the first direction.