CN114290040B

CN114290040B - Screw feeding mechanism of automatic screw machine

Info

Publication number: CN114290040B
Application number: CN202111513088.3A
Authority: CN
Inventors: 陈文思; 朱邦源; 王志远; 曹开兵; 潘志强
Original assignee: Anhui Yingli Electronic Technology Co ltd
Current assignee: Anhui Yingli Electronic Technology Co ltd
Priority date: 2021-12-12
Filing date: 2021-12-12
Publication date: 2023-03-28
Anticipated expiration: 2041-12-12
Also published as: CN114290040A

Abstract

The invention discloses a screw feeding mechanism of an automatic screw machine, which comprises a workbench, wherein a cavity is arranged in the workbench, a first motor is fixed in the cavity, an output shaft of the first motor is fixed with a rotating shaft, the rotating shaft penetrates through the workbench and extends above the workbench, a rotating cylinder is fixed on the rotating shaft, more than two vertical through holes are arranged on the rotating cylinder, the vertical through holes are concentrically distributed, included angles formed by two adjacent vertical through holes are the same, more than two layers of elastic barrier strips are fixed in the vertical through holes, more than three elastic barrier strips are arranged on each layer, the elastic barrier strips are used for supporting screws, a material receiving frame is fixed at the upper end of the workbench, a push plate is arranged above the rotating cylinder, the push plate is fixed with a piston rod of a first air cylinder, and the piston rod of the first air cylinder faces the rotating cylinder. This automatic screw machine's screw feeding mechanism can make things convenient for the screw ejection of compact and make things convenient for the machine to get the material.

Description

Screw feeding mechanism of automatic screw machine

Technical Field

The invention relates to the field of screw machines, in particular to a screw feeding mechanism of an automatic screw machine.

Background

The automatic screw locking machine is also called an automatic screw feeding machine, an automatic screw feeding and locking machine, an industrial screwing system, a screw locking robot and the like, and is used for replacing the traditional machine for manually screwing screws. The manual screw tightening includes both pure manual screw tightening and electric screw driver or pneumatic screw driver tightening, which generates rotational power by electric or pneumatic means instead of frequent manual screw tightening actions, and reduces the working strength of the screw lock to some extent. But the most screw boxes that adopt the level to set up of present screw feeding mechanism set up different screw passageways in the screw box, make the bolt level place, and inconvenient screw machine is got the material like this, if with the vertical placing of screw box, can uncontrollable during then the screw ejection of compact.

Disclosure of Invention

The invention aims to provide a screw feeding mechanism of an automatic screw machine, which can facilitate screw discharging and material taking of the machine.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an automatic screw feeding mechanism of screw machine, includes the workstation, be equipped with the cavity in the workstation, be fixed with motor I in the cavity, motor I's output shaft is fixed with the pivot, the pivot is passed the workstation and is stretched the workstation top, be fixed with a rotation section of thick bamboo in the pivot, be equipped with the vertical through-hole more than two on the rotation section of thick bamboo, vertical through-hole distributes with one heart, adjacent two the contained angle that vertical through-hole becomes is the same, vertical through-hole internal fixation has the elasticity blend stop more than two-layer, every layer of elasticity blend stop is provided with more than three, the elasticity blend stop is used for the supporting screw, the workstation upper end is fixed with connects the material frame, the rotation section of thick bamboo top is equipped with the push pedal, the push pedal is fixed with the piston rod of cylinder one, the piston rod of cylinder is towards a rotation section of thick bamboo.

Preferably, the workstation upper end is fixed with two above support columns, the support column upper end is fixed with the bottom suspension fagging, the bottom suspension fagging upper end is fixed with two above spliced poles, the spliced pole upper end is fixed with the backup pad, it sets up between last backup pad and bottom suspension fagging to rotate the section of thick bamboo, the bottom suspension fagging upper end is fixed with annular groove, it is fixed with annular convex rail to rotate the section of thick bamboo lower extreme, annular convex rail is installed in annular groove, the upper end and the last backup pad of pivot are connected through the bearing.

Preferably, the first cylinder is fixed on the upper support plate.

Preferably, a feeding channel is arranged in the material receiving frame, placing boxes are evenly placed in the feeding channel, two adjacent placing boxes are abutted against each other, and a placing groove for placing a screw is formed in the upper end of each placing box.

Preferably, one side below the feeding channel is provided with a first sliding groove below one of the vertical through holes, a first screw rod is arranged in the first sliding groove, one end of the first screw rod is connected with the inner wall of the first sliding groove through a bearing, a second motor is fixed at the upper end of the workbench, the other end of the first screw rod is fixed with an output shaft of the second motor, the first screw rod penetrates through a first sliding plate and is in threaded connection with a first sliding plate, the first sliding plate is installed in the first sliding groove, two push rods are fixed at the upper end of the first sliding plate, the lower end of the feeding channel is provided with two parallel sliding holes, the sliding holes are communicated with the first sliding groove, and the push rods penetrate through the sliding holes and extend into the feeding channel.

Preferably, still be equipped with two parallel feed back passageways and a transfer passage in the material receiving frame, the feed back passageway communicates with the pay-off passageway is perpendicular respectively, transfer passage is parallel with the pay-off passageway, transfer passage is perpendicular with the feed back passageway, transfer passage, feed back passageway, pay-off passageway form back font passageway.

Preferably, the material receiving frame side wall is provided with a through hole on one side of the material returning channel, the upper end of the workbench is fixed with a second cylinder on one side of the material returning channel, a piston rod of the second cylinder is fixed with the top plate, and the top plate can pass through the through hole.

Preferably, the bottom in the conveying channel is provided with a second sliding groove, a second screw rod is arranged in the second sliding groove, one end of the second screw rod is connected with the inner wall of the second sliding groove through a bearing, a third motor is fixed outside the material receiving frame, an output shaft of the third motor is fixed with the other end of the second screw rod, the second screw rod penetrates through the second sliding plate and is in threaded connection with the second sliding plate, and the second sliding plate is arranged in the second sliding groove.

Preferably, a first sliding rail is fixed on the inner wall, opposite to the feeding channel, of the placing box, a first groove matched with the first sliding rail is formed in the outer wall of the placing box, a second sliding rail is fixed at the bottom end of the feeding channel and the upper end of the second sliding plate, and a second groove matched with the second sliding rail is formed in the lower end of the placing box.

Preferably, the second sliding rail on the second sliding plate consists of an upper plate and two side plates, the upper plate is fixed to the upper end of the second sliding plate, one ends of the side plates are hinged to one end, close to the feed back channel, of the upper plate respectively, springs are arranged between the two side plates, and two ends of each spring are fixed to the two side plates respectively.

Compared with the prior art, the invention has the beneficial effects that:

1) The screws are vertically arranged in the vertical through holes through the arrangement of the rotating cylinders, so that the screws can be conveniently discharged, and the screws can be orderly arranged through the arrangement of the elastic barrier strips, and the screws cannot fall out of control when being discharged;

2) Connect the material frame through setting up, can make every screw of ejection of compact get into the corresponding box of placing in, then will place the box and convey the material department of getting of screw machine, make things convenient for the screw machine to get the material.

Drawings

FIG. 1 is a schematic structural diagram of a screw feeding mechanism of an automatic screw machine according to an embodiment of the present invention;

FIG. 2 is a top view of a rotary cylinder in an embodiment of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is a top view of the receiving frame and the placing box in an embodiment of the present invention;

FIG. 5 is a top view of an exemplary embodiment of a receiving frame of the present invention;

FIG. 6 is an enlarged view at B in FIG. 5;

FIG. 7 is a schematic view of a storage case according to an embodiment of the present invention;

FIG. 8 is a schematic structural view of a side plate in the embodiment of the present invention;

in the figure, 1, a workbench, 2, a cavity, 3, a first motor, 4, a rotating shaft, 5, a rotating cylinder, 6, a supporting column, 7, a lower supporting frame, 8, a connecting column, 9, an upper supporting plate, 10, an annular convex rail, 11, a vertical through hole, 12, an elastic barrier strip, 13, a push plate, 14, a first cylinder, 15, a material receiving frame, 16, a feeding channel, 17, a placing box, 18, a placing groove, 19, a first sliding groove, 20, a first screw rod, 21, a second motor, 22, a first sliding plate, 23, a push rod, 24, a sliding hole, 25, a material returning channel, 26, a conveying channel, 27, a perforation, 28, a second cylinder, 29, a top plate, 30, a second sliding groove, 31, a second screw rod, 32, a third motor, 33, a second sliding plate, 34, a first sliding rail, 35, a first groove, 36, a second sliding rail, 37, a side plate, 38, an upper plate, 39, a spring, 40 and a second groove.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, a screw feeding mechanism of an automatic screw machine includes a worktable 1, a cavity 2 is disposed in the worktable 1, and a motor 3 is fixed in the cavity 2. An output shaft of the first motor 3 is fixed with a rotating shaft 4, the rotating shaft 4 penetrates through the workbench 1 to extend above the workbench 1, and a rotating cylinder 5 is fixed on the rotating shaft 4. The upper end of the workbench 1 is fixed with more than two support columns 6, the upper ends of the support columns 6 are fixed with the lower support frame 7, the upper end of the lower support frame 7 is fixed with more than two connecting columns 8, and the upper ends of the connecting columns 8 are fixed with an upper support plate 9. The rotating cylinder 5 is arranged between an upper supporting plate 9 and a lower supporting frame 7, an annular groove is fixed at the upper end of the lower supporting frame 7, an annular convex rail 10 is fixed at the lower end of the rotating cylinder 5, the annular convex rail 10 is installed in the annular groove, and the upper end of the rotating shaft 4 is connected with the upper supporting plate 9 through a bearing.

More than two vertical through holes 11 are formed in the rotating cylinder 5, the vertical through holes 11 penetrate through the rotating cylinder 5, the vertical through holes 11 are concentrically distributed, and included angles formed by two adjacent vertical through holes 11 are the same. More than two layers of elastic barrier strips 12 are fixed in the vertical through holes 11, more than three layers of elastic barrier strips 12 are arranged on each layer, the elastic barrier strips 12 are used for supporting screws, and the elastic barrier strips 12 can be made of rubber or made of other elastic materials. A push plate 13 is arranged above the rotating cylinder 5, the push plate 13 is fixed with a piston rod of a first air cylinder 14, the piston rod of the first air cylinder 14 faces one of the vertical through holes 11, and the first air cylinder 14 is fixed on the upper supporting plate 9.

The upper end of the workbench 1 is fixed with a material receiving frame 15, a material feeding channel 16 is arranged in the material receiving frame 15, placing boxes 17 are evenly placed in the material feeding channel 16, two adjacent placing boxes 17 are close to each other, and a placing groove 18 for placing screws is arranged at the upper end of each placing box 17. A first sliding groove 19 is formed in one side below the feeding channel 16 and below one of the vertical through holes 11, a first screw rod 20 is arranged in the first sliding groove 19, and one end of the first screw rod 20 is connected with the inner wall of the first sliding groove 19 through a bearing. The upper end of the workbench 1 is fixed with a second motor 21, and the other end of the first screw rod 20 is fixed with an output shaft of the second motor 21. The first screw rod 20 penetrates through the first sliding plate 22 and is in threaded connection with the first sliding plate 22, the first sliding plate 22 is installed in the first sliding groove 19, and two push rods 23 are fixed at the upper end of the first sliding plate 22. Two parallel sliding holes 24 are formed in the lower end of the feeding channel 16, the sliding holes 24 are communicated with the first sliding groove 19, and the push rod 23 penetrates through the sliding holes 24 and extends into the feeding channel 16.

Two parallel feed back channels 25 and a conveying channel 26 are further arranged in the receiving frame 15, the feed back channels 25 are respectively and vertically communicated with the feeding channel 16, the conveying channel 26 is parallel to the feeding channel 16, the conveying channel 26 is perpendicular to the feed back channels 25, and the conveying channel 26, the feed back channels 25 and the feeding channel 16 form a zigzag channel. A through hole 27 is formed in the side wall of the material receiving frame 15 and located on one side of the material return channel 25, a second air cylinder 28 is fixed to the upper end of the workbench 1 and located on one side of the material return channel 25, a piston rod of the second air cylinder 28 is fixed to a top plate 29, and the top plate 29 can penetrate through the through hole 27.

The bottom in the conveying channel 26 is provided with a second sliding groove 30, a second screw rod 31 is arranged in the second sliding groove 30, and one end of the second screw rod 31 is connected with the inner wall of the second sliding groove 30 through a bearing. The motor III 32 is fixed outside the material receiving frame 15, an output shaft of the motor III 32 is fixed with the other end of the screw rod II 31, the screw rod II 31 penetrates through the sliding plate II 33 and is in threaded connection with the sliding plate II 33, and the sliding plate II 33 is installed in the sliding groove II 30. The inner walls of the feeding channel 16 opposite to each other are respectively fixed with a first sliding rail 34, the outer wall of the placing box 17 is provided with a first groove 35 matched with the first sliding rail, and the first groove 35 is slightly wider than the first sliding rail 34, so that the first sliding rail can be conveniently clamped into the first groove 35. A second sliding rail 36 is fixed at the bottom end of the feed back channel 25 and the upper end of the second sliding plate 33, a second groove 40 matched with the second sliding rail 36 is arranged at the lower end of the placing box 17, and the second groove 40 is slightly wider than the second sliding rail 36, so that the second sliding rail 36 can be conveniently clamped into the second groove 40. The second sliding rail 36 on the second sliding plate 33 is composed of an upper plate 38 and two side plates 37, the upper plate 38 is in a shape of Jiong, the width of the upper plate 38 is slightly smaller than that of the second groove, and the second groove 40 for placing the box 17 is conveniently clamped with the upper plate 38. The upper plate 38 is fixed with the upper end of the second sliding plate 33, one end of each side plate 37 is hinged with one end, close to the feed back channel 25, of the upper plate 38, a spring 39 is arranged between the two side plates 37, and two ends of each spring 39 are fixed with the two side plates 37 respectively.

The working principle is as follows: one end of the feeding channel 16, which is provided with the sliding hole 24, is used as a starting end, the other end is used as a tail end, the placing box 17 is fully placed in the feeding channel 16, the placing box 17 is not placed at the starting end, and different screws are sequentially placed in the placing box 17 according to the types of the screws required by products. Screws of different types are placed in different vertical channels, so that the screws in each vertical channel are vertically stacked, and the nuts of the screws are positioned at the upper ends of the elastic barrier strips 12.

When the screw in the terminal placing box 17 is taken away by the taking mechanism of the screw machine, the second air cylinder 28 is started, and the second air cylinder 28 drives the top plate 29 to push the empty placing box 17 into the second sliding plate 33 in the conveying channel 26 through the feeding channel 16 and the material returning channel 25. The placing box 17 enters the second slide rail 36 on the second slide plate 33 along the second slide rail 36 on the feed back channel 25, the placing box 17 presses the two side plates 37, the spring 39 contracts, and meanwhile the side plates 37 also press the placing box 17. And starting the third motor 32, driving the second screw rod 31 to rotate by the third motor 32, and driving the second sliding plate 33 to move by the second screw rod 31. The second slide plate 33 drives the placing box 17 to move from one end of the conveying channel 26 to the other end, then another second air cylinder 28 is started, and the placing box 17 is moved to the starting end in the feeding channel 16 through the conveying channel 26 and the return channel 25 by using the top plate 29.

Starting the first motor 3, driving the rotating cylinder 5 to rotate by the first motor 3, and enabling the screw needing to be discharged to rotate to the upper side of the empty placing box 17. Starting the first cylinder 14, the first cylinder 14 drives the push plate 13 to extend into the vertical through hole 11, the push plate 13 pushes the screw downwards, the lowermost screw in the vertical through hole 27 falls into the placing box 17, the nut of the screw is located at the upper end of the placing box 17, and the screw of the screw enters the placing groove 18. When the screw moves downwards, the elastic barrier strip 12 rotates downwards, so that all the screws in the same vertical channel move downwards to one position, and after the push plate 13 is reset, the elastic barrier strip 12 is reset to support the screws again.

After the screws enter the placing boxes 17, the second motor 21 is started, the second motor 21 drives the first sliding plate 22 to move, the first sliding plate 22 drives the push rod 23 to move along the sliding hole 24, the push rod 23 pushes the placing boxes 17, all the placing boxes 17 move forwards to the position of one placing box 17, namely, the tail end vacant positions of the feeding channels 16 are filled, and the starting ends are vacant again.

The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.

Claims

1. The utility model provides an automatic screw feeding mechanism of screw machine which characterized in that: the screw feeding device comprises a workbench, a cavity is formed in the workbench, a first motor is fixed in the cavity, an output shaft of the first motor is fixed with a rotating shaft, the rotating shaft penetrates through the workbench and extends above the workbench, a rotating cylinder is fixed on the rotating shaft, more than two vertical through holes are formed in the rotating cylinder and are concentrically distributed, included angles formed by two adjacent vertical through holes are the same, more than two layers of elastic barrier strips are fixed in the vertical through holes, more than three elastic barrier strips are arranged on each layer, the elastic barrier strips are used for supporting screws, a material receiving frame is fixed at the upper end of the workbench, a push plate is arranged above the rotating cylinder and is fixed with a piston rod of a first air cylinder, the piston rod of the first air cylinder faces the rotating cylinder, a material feeding channel is formed in the material receiving frame, placing boxes are uniformly placed in the material feeding channel, the two adjacent placing boxes are close to each other, and a placing groove for placing screws is formed in the upper end of each placing box; the feeding device is characterized in that a first sliding groove is arranged on one side below the feeding channel and below one of the vertical through holes, a first screw rod is arranged in the first sliding groove, one end of the first screw rod is connected with the inner wall of the first sliding groove through a bearing, a second motor is fixed to the upper end of the workbench, the other end of the first screw rod is fixed to an output shaft of the second motor, the first screw rod penetrates through a first sliding plate and is in threaded connection with the first sliding plate, the first sliding plate is installed in the first sliding groove, two push rods are fixed to the upper end of the first sliding plate, two parallel sliding holes are formed in the lower end of the feeding channel, the sliding holes are communicated with the first sliding groove, and the push rods penetrate through the sliding holes and stretch into the feeding channel.

2. The screw feeding mechanism of an automatic screw machine according to claim 1, characterized in that: the utility model discloses a rotary drum, including workstation upper end, bracing piece, bottom suspension dagger, upper end, the workstation upper end is fixed with two above support columns, the support column upper end is fixed with two above spliced poles, the spliced pole upper end is fixed with the backup pad, it sets up between upper support plate and bottom suspension dagger to rotate the section of thick bamboo, the bottom suspension dagger upper end is fixed with annular groove, it is fixed with annular protruding rail to rotate a section of thick bamboo lower extreme, annular protruding rail is installed in annular groove, the upper end and the last backup pad of pivot are passed through the bearing and are connected.

3. The screw feeding mechanism of an automatic screw machine according to claim 2, characterized in that: the first cylinder is fixed on the upper supporting plate.

4. The screw feeding mechanism of an automatic screw machine according to claim 1, characterized in that: the material receiving frame is internally provided with two parallel material returning channels and a conveying channel, the material returning channels are respectively and vertically communicated with the material conveying channel, the conveying channel is parallel to the material conveying channel, the conveying channel is vertical to the material returning channels, and the conveying channel, the material returning channels and the material conveying channels form a channel shaped like a Chinese character 'hui'.

5. The screw feeding mechanism of an automatic screw machine according to claim 4, characterized in that: the material receiving frame is characterized in that a through hole is formed in one side, located on the side wall of the material returning channel, of the material receiving frame, a second air cylinder is fixed to the upper end, located on one side of the material returning channel, of the workbench, a piston rod of the second air cylinder is fixed to the top plate, and the top plate can penetrate through the through hole.

6. The screw feeding mechanism of the automatic screw machine according to claim 4, characterized in that: the bottom in the conveying channel is provided with a second sliding groove, a second screw rod is arranged in the second sliding groove, one end of the second screw rod is connected with the inner wall of the second sliding groove through a bearing, a third motor is fixed outside the material receiving frame, an output shaft of the third motor is fixed with the other end of the second screw rod, the second screw rod penetrates through the second sliding plate and is in threaded connection with the second sliding plate, and the second sliding plate is arranged in the second sliding groove.

7. The screw feeding mechanism of an automatic screw machine according to claim 6, characterized in that: the feeding device is characterized in that first sliding rails are fixed on the inner walls, opposite to the feeding channel, of the placing box respectively, first grooves matched with the first sliding rails are formed in the outer wall of the placing box, second sliding rails are fixed at the bottom end of the feeding channel and the upper ends of the second sliding plates, and second grooves matched with the second sliding rails are formed in the lower end of the placing box.

8. The screw feeding mechanism of the automatic screw machine according to claim 7, characterized in that: the second sliding rail on the second sliding plate is composed of an upper plate and two side plates, the upper plate is fixed to the upper end of the second sliding plate, one ends of the side plates are hinged to the end, close to the feed back channel, of the upper plate respectively, springs are arranged between the two side plates, and the two ends of each spring are fixed to the two side plates respectively.