Automatic feeding and tightening system for tiny screws

Abstract

The utility model discloses an automatic feeding and tightening system for tiny screws. The automatic feeding and tightening system comprises a main body frame; the feeding bin is connected with the main body frame; the direct vibration rail is connected with the feeding bin and used for vibrating and conveying the screws; the stepped feeding mechanism is connected with the feeding bin and the straight vibration track and used for transferring the screws in the feeding bin to the straight vibration track and conveying the screws forwards through the straight vibration track; the screw sucking and conveying mechanism is arranged at the output end of the straight vibration track and used for sequentially sucking the screws conveyed by the straight vibration track and conveying the sucked screws to the connection position; and the electric screwdriver module is connected with the screw suction conveying mechanism and used for receiving the screws conveyed to the connecting position by the screw suction conveying mechanism and locking the screws. According to the utility model, the production takt is improved, automatic material taking is facilitated, a locking electric screwdriver and a feeding system are integrated in the existing design, and the feeder integrally moves along with the moving module, so that high-speed screw taking and locking actions are realized.

Description

Technical Field

[0001] The utility model relates to the technical fields of 3C, automobile and military industrial processing, and particularly relates to a micro screw automatic feeding and tightening system. Background Art

[0002] A screw is a common fastener, which is widely used in machinery, electrical appliances and buildings. In modern production factories mainly based on assembly processes, screws are widely used as fixing parts. There are many types of screws, and the commonly used ones include hexagon socket head cap screws, cross recessed screws, etc. For screws of the same type but different models, in addition to the differences in some basic dimensions such as the across flats of the head and the thickness of the head, the most important difference is in the thread part. According to the nominal diameter, it can be divided into various models such as M0.6 - M20. Generally, models with a diameter of M2 and below are regarded as micro screws. Because of their small diameter, they are micro fasteners for connecting product materials. Although they are small in shape, they can play a key role in key parts.

[0003] Due to the small size specifications of micro screws, it is easy to cause inconvenience during storage and use. When ordinary workers use them, they need to find a sufficient number of micro screws from the material box and take them to the assembly workshop. Manual searching and conveying not only waste time and affect processing efficiency, but also are prone to loss during the conveying process. In the prior art, screws are supplied by a feeder and then picked up by a separate electric screwdriver module. The operation is cumbersome, and because the feeder is large in size and can only be fixed in a fixed position, when there are a large number of screws to be locked and the distance is far, this method will consume a lot of time in picking up nails, directly affecting work efficiency. Summary of the Invention

[0004] According to an embodiment of the utility model, there is provided a micro screw automatic feeding and tightening system, comprising:

[0005] A main frame;

[0006] A feeding bin, which is connected to the main frame;

[0007] A linear vibrating track, which is connected to the feeding bin and is used for vibrating and conveying screws;

[0008] A stepped feeding mechanism, which is connected to the feeding bin and the linear vibrating track and is used for transferring the screws in the feeding bin to the linear vibrating track and conveying them forward through the linear vibrating track;

[0009] A screw sucking and conveying mechanism, which is arranged at the output end of the linear vibrating track and is used for successively sucking the screws conveyed by the linear vibrating track and conveying the sucked screws to the connection position;

[0010] The electric screwdriver module is connected to the screw suction and conveying mechanism, and is used to receive the screws conveyed by the screw suction and conveying mechanism to the connection position and perform the screwing operation.

[0011] Furthermore, it also includes: a vibrator, which is connected to the main body frame and the linear vibration track, and is used to drive the linear vibration track to vibrate and drive the screws on the linear vibration track forward.

[0012] Furthermore, a plurality of inclined guide plates are provided on the inner walls on both sides of the feeding bin.

[0013] Furthermore, the stepped feeding mechanism includes:

[0014] A feeding member, which is arranged between the bottom discharge port of the feeding bin and the linear vibration track in a directionally liftable manner, and a stepped feeding head is provided at the top of the feeding member;

[0015] A slide rail, which is arranged on the main body frame;

[0016] A slider, which is arranged on the slide rail;

[0017] A first cylinder, which is arranged on one side of the slide rail, and the output end of the first cylinder is connected to the slider;

[0018] A transmission frame, which is connected to the slider, and a transmission groove is provided on the transmission frame;

[0019] A transmission block, which is connected to the feeding member and is located in the transmission groove.

[0020] Furthermore, it also includes:

[0021] An ejection channel, which communicates the linear vibration track and the feeding bin;

[0022] A nail-blowing air pipe, which is arranged on the linear vibration track and is arranged opposite to the ejection channel.

[0023] Furthermore, a T-shaped track groove is provided on the linear vibration track, and inclined surfaces are provided on both sides of the top of the T-shaped track groove.

[0024] Furthermore, the screw suction and conveying mechanism includes:

[0025] A nail-cutting cylinder, which is arranged on the main body frame;

[0026] A screw suction block, which is arranged at the output end of the nail-cutting cylinder, and a screw suction groove is provided on the screw suction block, and the screw suction groove is arranged opposite to the output end of the linear vibration track.

[0027] Furthermore, the electric screwdriver module includes:

[0028] A linear module, which is arranged on the main body frame;

[0029] An electric screwdriver, which is arranged at the output end of the linear module.

[0030] A micro screw automatic feeding and tightening system according to an embodiment of the present invention can solve the problem of long material taking time of a fixed-position feeder, improve the production beat, facilitate automatic material taking, and now designs to integrate a locking electric screwdriver and a feeding system into one. The feeder moves integrally with the motion module to achieve high-speed screw taking and locking actions.

[0031] It should be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 FIG. is a schematic three-dimensional structure diagram of a micro screw automatic feeding and tightening system according to an embodiment of the present invention.

[0033] Figure 2 FIG. is a schematic cross-sectional structure diagram of a micro screw automatic feeding and tightening system according to an embodiment of the present invention.

[0034] Figure 3 For Figure 2 the partial enlarged structure diagram in

[0035] Figure 4 FIG. is a schematic structure diagram of the straight vibration track output of a micro screw automatic feeding and tightening system according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The following will describe in detail the preferred embodiments of the present invention with reference to the accompanying drawings and further elaborate on the present invention.

[0037] First, a micro screw automatic feeding and tightening system according to an embodiment of the present invention will be described in conjunction with Figures 1 to 4 for the automatic feeding and locking of screws, and its application scenarios are very wide.

[0038] As Figures 1 to 2 shown, a micro screw automatic feeding and tightening system according to an embodiment of the present invention includes a main frame 1, a feeding bin 2, a straight vibration track 3, a stepped feeding mechanism, a nail suction and conveying mechanism, and an electric screwdriver module.

[0039] Specifically, as Figures 1 to 2 shown, the feeding bin 2 is connected to the main frame 1, and a plurality of inclined guide plates are provided on both inner walls of the feeding bin 2 for guiding screws. The top of the feeding bin 2 has a feeding port, and the bottom has a discharging port.

[0040] Specifically, as Figure 2As shown in the figure, the straight vibration track 3 is connected to the feeding bin 2 and is used for vibrating and conveying screws. The straight vibration track 3 is provided with a T-shaped track groove 75. Both sides of the top of the T-shaped track groove 75 are provided with inclined surfaces 76. The T-shaped track groove 75 is used to ensure the stable conveying of screws, and the inclined surfaces 76 facilitate the screws to enter the T-shaped track groove 75.

[0041] Specifically, as Figure 2 shown in the figure, the stepped feeding mechanism is connected to the feeding bin 2 and the straight vibration track 3, and is used to transfer the screws in the feeding bin 2 to the straight vibration track 3 and convey them forward through the straight vibration track 3. The stepped feeding mechanism includes: a feeding member 41, a slide rail 42, a slider 43, a first cylinder 44, a transmission frame 45 and a transmission block 46. The feeding member 41 is arranged between the bottom discharge port of the feeding bin 2 and the straight vibration track 3 in a directionally liftable manner. A stepped feeding head 411 is provided at the top of the feeding member 41; the slide rail 42 is arranged on the main body frame 1; the slider 43 is arranged on the slide rail 42; the first cylinder 44 is arranged on one side of the slide rail 42, and the output end of the first cylinder 44 is connected to the slider 43; the transmission frame 45 is connected to the slider 43, and a transmission groove is provided on the transmission frame 45; the transmission block 46 is connected to the feeding member 41 and is located in the transmission groove. By operating the first cylinder 44, the slider 43 can be driven to move on the slide rail 42, and the transmission frame 45 can be driven to move, so that the transmission block 46 rises and falls in the transmission groove, and further drives the feeding member 41 to rise and fall, and transfers the screws in the feeding bin 2 to the straight vibration track 3.

[0042] Specifically, as Figure 1 shown in the figure, the nail suction and conveying mechanism is arranged at the output end of the straight vibration track 3 and is used to sequentially adsorb the screws conveyed by the straight vibration track 3 and convey the adsorbed screws to the connection position. The nail suction and conveying mechanism includes: a nail cutting cylinder 51 and a nail suction block 52; the nail cutting cylinder 51 is arranged on the main body frame 1; the nail suction block 52 is arranged at the output end of the nail cutting cylinder 51. A nail suction groove 521 is provided on the nail suction block 52. The nail suction groove 521 faces the output end of the straight vibration track 3, and the nail suction groove 521 is externally connected to a vacuum air source.

[0043] Specifically, as Figure 1 shown in the figure, the electric screwdriver module is connected to the nail suction and conveying mechanism and is used to receive the screws conveyed by the nail suction and conveying mechanism to the connection position and perform the screwing operation of the screws. The electric screwdriver module includes: a linear module 61 and an electric screwdriver 62. The linear module 61 is arranged on the main body frame 1; the electric screwdriver 62 is arranged at the output end of the linear module 61.

[0044] Furthermore, as Figure 1 shown in the figure, a micro screw automatic feeding and tightening system according to an embodiment of the present invention further includes: a vibrator 71. The vibrator 71 is connected to the main body frame 1 and the straight vibration track 3 and is used to drive the straight vibration track 3 to vibrate and drive the screws on the straight vibration track 3 forward.

[0045] Further, a micro screw automatic feeding and tightening system according to an embodiment of the present utility model further includes: a rejection channel 73 and a nail blowing air pipe 74. The rejection channel 73 communicates with the straight vibration track 3 and the feeding bin 2; the nail blowing air pipe 74 is arranged on the straight vibration track 3 and is arranged opposite to the rejection channel 73. When the screws are not conveyed in the correct posture on the straight vibration track 3, the screws can be blown into the rejection channel 73 by the nail blowing air pipe 74 and returned to the feeding bin 2.

[0046] Working principle:

[0047] After the screws are put into the feeding bin 2, they will flow through the guiding plate and reach the discharge port, where they are received by the stepped feeding head 411 on the feeding member 41. By controlling the operation of the first cylinder 44, the slider 43 can be driven to reciprocate on the slide rail 42, and the transmission frame 45 can be driven to move, so that the transmission block 46 moves up and down in the transmission groove, and then the feeding member 41 is driven to move up and down, and the screws are sequentially transferred to the straight vibration track 3. The screws on the straight vibration track 3 are driven forward by the vibrator 71. When reaching the nail suction block 52, vacuum is pumped into the nail suction groove 521 to adsorb a screw. When the vacuum value is met, the nail cutting cylinder 51 moves, and the nail suction block 52 carries a screw to the connection position. The electric screwdriver 62 descends under the drive of the linear module 61, adsorbs the screw and lifts it to a certain height, then the nail cutting cylinder 51 drives the nail suction block 52 to reset, and the electric screwdriver 62 descends again under the drive of the linear module 61 to perform the locking operation on the screw. After the locking is completed, the electric screwdriver 62 rises under the drive of the linear module 61, and the second screw is cut out to the connection position for the locking of the second screw, so as to complete the feeding and locking of the screws in sequence.

[0048] As above, with reference to Figures 1 to 4 A micro screw automatic feeding and tightening system according to an embodiment of the present utility model is described, which can solve the problem of long material taking time of the fixed-position feeder, improve the production beat, facilitate automatic material taking. Now, the locking electric screwdriver and the feeding system are integrated into one, and the feeder moves together with the motion module to realize the high-speed screw taking and locking action.

[0049] It should be noted that in this specification, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, the elements defined by the statement "comprising..." do not exclude the existence of additional identical elements in the process, method, article or device including the said elements.

[0050] Although the content of the present utility model has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be construed as a limitation of the present utility model. After those skilled in the art have read the above content, various modifications and alternatives to the present utility model will be obvious. Therefore, the protection scope of the present utility model should be defined by the appended claims.

Claims

1. A micro screw automatic feeding and tightening system, characterized in that: Include: Main frame; A loading bin connected to the main frame; A straight vibration track, which is connected to the upper bin and is used for vibrating and conveying screws; A step feeding mechanism, which is connected with the feeding bin and the straight vibration track, and is used to transfer the screws in the feeding bin to the straight vibration track and transport them forward through the straight vibration track; A nail suction conveying mechanism, which is arranged at the output end of the straight vibration track, and is used to sequentially absorb the screws conveyed by the straight vibration track, and convey the absorbed screws to the connection position; An electric screwdriver module is connected to the nail suction and conveying mechanism to receive the screws conveyed to the connecting position by the nail suction and conveying mechanism and perform the screw locking operation.

2. The micro screw automatic feeding and tightening system as claimed in claim 1, characterized in that: It also includes: a vibrator, which is connected to the main frame and the direct vibration track and is used to drive the direct vibration track to vibrate and drive the screws on the direct vibration track forward.

3. The micro screw automatic feeding and tightening system as claimed in claim 1, characterized in that: A plurality of inclined material guide plates are arranged on the inner walls on both sides of the upper material bin.

4. The micro screw automatic feeding and tightening system as claimed in claim 1, characterized in that: The step feeding mechanism comprises: A loading piece, which is guideable and liftable and is disposed between the bottom discharge port of the loading bin and the straight vibration track, and a stepped loading head is provided on the top of the loading piece; A slide rail, wherein the slide rail is arranged on the main frame; A slider, wherein the slider is arranged on the slide rail; A first cylinder, wherein the first cylinder is disposed on one side of the slide rail, and an output end of the first cylinder is connected to the slide block; A transmission frame, the transmission frame is connected to the slider, and a transmission groove is provided on the transmission frame; A transmission block is connected to the feeding member and is located in the transmission groove.

5. The micro screw automatic feeding and tightening system as claimed in claim 1, characterized in that: Also includes: A rejection channel, the rejection channel connecting the vertical vibration track and the loading bin; A nail blowing air pipe is arranged on the straight vibration track and is directly opposite to the rejection channel.

6. The micro screw automatic feeding and tightening system as claimed in claim 1, characterized in that: A T-shaped track groove is arranged on the straight vibration track, and inclined surfaces are arranged on both sides of the top of the T-shaped track groove.

7. The micro screw automatic feeding and tightening system as claimed in claim 1, characterized in that: The nail suction and conveying mechanism comprises: A nail cutting cylinder, the nail cutting cylinder is arranged on the main frame; A nail suction block is arranged at the output end of the nail cutting cylinder, and a nail suction groove is provided on the nail suction block, and the nail suction groove is directly opposite to the output end of the straight vibration track.

8. The micro screw automatic feeding and tightening system as claimed in claim 1, characterized in that: The electric screwdriver module comprises: A linear module, wherein the linear module is arranged on the main frame; An electric screwdriver is arranged at the output end of the linear module.

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