A tightening device for automatically installing a washer and nut and a tightening method thereof

Abstract

The application discloses a kind of automatic installation washer and nut tightening device and its tightening method, which include main support, the top of the main support is equipped with motor, the side of the motor is equipped with output shaft, the outside of the output shaft is equipped with gear, the top of the main support is equipped with screw hole, and the screw hole is screwed with the screw rod of starting nail, the top of the screw rod of starting nail is equipped with long tooth sleeve, the bottom of the screw rod of starting nail is plum blossom cross structure, the top of the output shaft is equipped with driving wheel, the main support is rotatably provided with rotating shaft by bearing, the top of the rotating shaft is equipped with support disc, the driving wheel and support disc are wound with transmission belt, the rotating shaft is equipped with gasket mounting bracket, the support disc is movably connected to the outside of the rotating shaft by bearing, drive slot one, drive slot two and drive slot three are respectively and interval a distance apart and arranged on the transmission belt, and the device solves the problem of poor practicability.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of nut installation, and particularly relates to a tightening device for automatically installing a washer and a nut and a tightening method thereof. BACKGROUND

[0002] When processing and assembling a pipeline type plate, a bolt is usually used to connect the plates, so that the connection between the plates is more stable and convenient to disassemble. During processing, a nut is first installed at the bottom of a lower plate, and a bolt with a washer is then screwed with the nut.

[0003] The existing method of tightening a nut is performed by a worker holding an electric screwdriver. Although this method saves labor, it requires a large amount of manual operation and is time-consuming and labor-intensive. Moreover, the existing technology needs to manually install a washer on a nut, further increasing the operation difficulty and poor practicability. This phenomenon has become a problem that needs to be solved by personnel in the field. SUMMARY

[0004] The application aims to provide a tightening device for automatically installing a washer and a nut and a tightening method thereof to solve the problems in the background art.

[0005] To solve the above technical problems, the application provides the following technical scheme: a tightening device for automatically installing a washer and a nut, comprising a main support, a motor installed on the top of the main support, an output shaft installed on one side of the motor, a gear sleeved on the outside of the output shaft, a screw hole formed in the top of the main support, and a jack screw screwed in the screw hole, a long tooth sleeve sleeved on the top of the jack screw, and a keyhole cross structure at the bottom of the jack screw.

[0006] The application further discloses that a driving wheel is sleeved on the top of the output shaft, a rotating shaft is rotatably arranged on the main support through a bearing, a support disc is sleeved on the top of the rotating shaft, a transmission belt is wound and installed between the driving wheel and the support disc, and a washer mounting frame is installed on the rotating shaft.

[0007] The application further discloses that the support disc is movably sleeved on the outside of the rotating shaft through a bearing, a time-sharing driven wheel is installed at the top end of the rotating shaft, driving grooves one, two and three are respectively and separately provided at intervals on the transmission belt, driving blocks one and two are fixed on the two sides of the driven wheel through welding, the driving blocks one and two are movably clamped with the driving grooves one, two and three, and the driving blocks one and two are of an elastic telescopic structure.

[0008] The application further discloses that the straight-line distance of the driving grooves one, two and three on the transmission belt is half of the circumference of the time-sharing driven wheel.

[0009] Further, the gasket mounting frame is a structure of two half-rings that are spliced together, and the two half-rings are opened and closed by a rotary cylinder.

[0010] Further, the bottom of the gasket mounting frame is provided with flexible guide bags that are in a slope structure and are spliced together into a circular truncated cone structure, and the gasket mounting frame is provided with an air pump.

[0011] Further, the tightening method of the device is as follows:

[0012] S1, a screw is installed at the bottom of the screw rod;

[0013] S2, the gasket is sequentially placed at the rotationally symmetric position of the gasket mounting frame, and the nut is placed at the rotating station and clamped;

[0014] S3, the motor is started to drive the screw rod to descend, and when the screw rod descends, the gasket mounting frame is used to transfer the gasket to the rotating station;

[0015] S4, the screw and the nut are tightened, and the clamping of the gasket is released, and the screw rotation is completed.

[0016] Further, the steps S3-S4 are as follows:

[0017] S31, when the screw rod is at the uppermost position, the gasket mounting frame is at the symmetric position of the rotating station, i.e., the feeding station, at this time, the annular magnet attracts the uppermost gasket of the neatly stacked gasket stack to the lower side of the annular magnet;

[0018] S32, as the screw rod descends, the time-sharing driven wheel is driven to rotate by the clamping of the driving groove two and the driving block one, and after rotating half a circle, the time-sharing driven wheel reaches the screw rotating station, at this time, the gasket mounting frame rotates 180° to the left side, and the gasket and the screw rod are overlapped together;

[0019] S33, the rotary cylinder is started to open the two half-rings of the gasket mounting frame, and the gasket is released, at this time, the screw rod continues to descend, the gasket is sleeved on the screw, and the time-sharing driven wheel continues to rotate to the feeding station by the clamping of the driving block two and the driving groove one, and after the two are separated, the time-sharing driven wheel stops rotating, the driving block one and the driving block two are retracted, until the screw is tightened, and the gasket mounting frame rotates 360 degrees and stops rotating;

[0020] S34, the motor is reversely driven to operate, the screw rod ascends, and the main support is moved to the next station, and the reciprocating operation is repeated.

[0021] Compared with the prior art, the present application has the advantages that the automatic screwing method can quickly screw the nut, screw and gasket together, and can avoid the common errors of belt transmission, is suitable for screws with different screwing turns, and can be accurately returned to the feeding station after rotation. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and explain the technical solutions of the present application, and do not constitute a limitation on the present application. In the drawings:

[0023] Figure 1 is a schematic diagram of the overall structure of the present application;

[0024] Figure 2 is a schematic diagram of the working principle of the present application;

[0025] Figure 3 is a schematic diagram of the gasket mounting rack structure of the present application;

[0026] Figure 4 is a schematic diagram of the gasket mounting rack station of the present application;

[0027] In the drawings: 1, main support; 2, motor; 21, gear; 22, output shaft; 23, driving wheel; 3, screwing screw; 31, long tooth sleeve; 4, rotating shaft; 41, gasket mounting rack; 42, support disc; 43, time-sharing driven wheel; 44, transmission belt; 441, driving groove one; 442, driving groove two; 443, driving groove three; 431, driving block one; 432, driving block two; 411, annular magnet; 412, air pump; 413, flexible guide bag. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be further described in detail below with reference to the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0029] Please refer to Figures 1-4The application provides a technical scheme: a tightening device for automatically installing a gasket and a nut, which comprises a main support 1, a motor 2 is installed on the top of the main support 1, an output shaft 22 is installed on one side of the motor 2, a gear 21 is sleeved on the outside of the output shaft 22, a screw hole is formed in the top of the main support 1, a jack screw 3 is screwed in the screw hole, a long tooth sleeve 31 is sleeved on the top of the jack screw 3, the bottom of the jack screw 3 is in a plum blossom cross structure, the gear 21 can be driven to rotate by starting the motor 2, the long tooth sleeve 31 is driven to rotate, and the jack screw 3 is driven to ascend or descend to tighten the screw;

[0030] A driving wheel 23 is sleeved on the top of the output shaft 22, a rotating shaft 4 is rotatably arranged on the main support 1 through a bearing, a support disc 42 is sleeved on the top of the rotating shaft 4, a transmission belt 44 is wound between the driving wheel 23 and the support disc 42, a gasket mounting frame 41 is installed on the rotating shaft 4, and the transmission belt 44 can be used to drive the rotating shaft 4 to rotate by the motor 2, so that the gasket and the screw are conveniently installed;

[0031] The support disc 42 is movably sleeved on the outside of the rotating shaft 4 through a bearing, a time-sharing driven wheel 43 is installed at the top end of the rotating shaft 4, drive grooves one 441, two 442 and three 443 are separately and intervally formed on the transmission belt 44, drive blocks one 431 and two 432 are fixed on the two sides of the time-sharing driven wheel 43 through welding, the drive blocks one 431 and two 432 are movably clamped with the drive grooves one 441, two 442 and three 443, the drive blocks one 431 and two 432 are in an elastic telescopic structure, when the transmission belt 44 is driven to run, the time-sharing driven wheel 43 cannot be driven to rotate under normal circumstances, and the time-sharing driven wheel 43 can be driven to rotate only when the drive grooves one 441, two 442 and three 443 are clamped with the drive blocks one 431 and two 432, the drive blocks one 431 and two 432 are retracted into a sliding mode, and the time-sharing driven wheel 43 can be driven to rotate only at the right time, so that the gasket mounting frame 41 does not interfere with the operation when the screw is tightened;

[0032] The straight-line distance of the drive grooves one 441, two 442 and three 443 on the transmission belt 44 is half of the circumference of the time-sharing driven wheel 43, the position of the drive grooves one 441, two 442 and three 443 is accurately controlled, the time-sharing driven wheel 43 can only be driven to rotate half a circle, the gasket mounting frame 41 can be switched back and forth between a gasket feeding station and a screw tightening position, and the gasket mounting frame 41 will not stay at other positions;

[0033] The gasket mounting frame 41 is a structure of two half-circular rings spliced with each other, and the two half-circular rings are opened and closed through a rotary cylinder. The bottom of the gasket mounting frame 41 is correspondingly provided with an annular magnet 411. When the gasket mounting frame 41 rotates to the gasket station, the uppermost gasket can be sucked by the annular magnet 411. After the gasket is connected with the screw, the rotary cylinder is started to drive the half of the gasket mounting frame 41 to expand. At this time, the driving of the gasket mounting frame 41 to move in the circumferential direction will not interfere with the tightening of the screw. The gasket can be sucked by the annular magnet 411 and is convenient to be brought to the screwing station.

[0034] The bottom of the gasket mounting frame 41 is correspondingly provided with a flexible guide bag 413, which is a structure of inclined surface and two flexible guide bags 413 are spliced into a circular table structure. The gasket mounting frame 41 is correspondingly provided with an air pump 412. The air pump 412 is connected with the flexible guide bag 413 in penetration. When the gasket is sucked, the flexible guide bag 413 is inflated. The shape is to facilitate centering. After the gasket is mounted, the air pump 412 is deflated, and the flexible guide bag 413 is contracted to facilitate the passing of the screw.

[0035] The tightening method of the device is as follows:

[0036] S1, install the screw at the bottom of the star-shaped cross of the starting screw rod 3;

[0037] S2, orderly place the gasket at the rotationally symmetrical position of the gasket mounting frame 41, and place the nut at the rotating station and clamp it;

[0038] S3, start the motor 2 and drive the starting screw rod 3 to descend. When the starting screw rod 3 descends, the gasket mounting frame 41 is used to transfer the gasket to the rotating station;

[0039] S4, tighten the screw and the nut, and loosen the clamping of the gasket. The screw rotation is completed;

[0040] The steps S3-S4 are as follows:

[0041] S31, when the starting screw rod 3 is at the uppermost position, the gasket mounting frame 41 is at the symmetrical position of the rotating station, that is, the feeding station. At this time, the annular magnet 411 sucks the uppermost gasket from the neatly stacked gasket stack to the lower side of the annular magnet 411;

[0042] S32, as the starting screw rod 3 descends, the time-sharing driven wheel 43 is driven to rotate by the clamping of the driving groove two 442 and the driving block one 431. After rotating half a circle, the time-sharing driven wheel 43 reaches the rotating screw station. At this time, the gasket mounting frame 41 rotates 180° to the left side, and the gasket is overlapped with the screw rod;

[0043] S33, the rotating cylinder is started to open the two semicircular rings of the gasket mounting frame 41, loosen the gasket, at this time continue to drive the descending of the nail screw rod 3, the gasket sleeve is connected on the screw, and the intermittent driving wheel 43 is driven by the clamping of the driving block two 432 and the driving groove one 441, and then continues to rotate to the feeding station, and then the two are separated, the intermittent driving wheel 43 stops, the driving block one 431 and the driving block two 432 are retracted, until the screw is tightened, the gasket mounting frame 41 rotates 360 degrees and stops rotating;

[0044] S34, the motor 2 is reversely driven, the nail screw rod 3 rises, and the main support 1 moves to the next station, so reciprocating, through the gasket mounting mode, only the nut, screw and gasket are placed in the appropriate position, the screw can be automatically rotated and the gasket is mounted, the working efficiency is high, and the automatic operation is suitable.

[0045] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation of the present application.

[0046] Finally, it should be pointed out that: the above examples are only used to illustrate the technical solutions of the present application, and are not limited. Although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A tightening device for automatic installation of a washer and nut, comprising a main support (1), characterized in that: The top of the main support (1) is provided with a motor (2), one side of the motor (2) is provided with an output shaft (22), the outside of the output shaft (22) is sleeved with a gear (21), the top of the main support (1) is provided with a threaded hole, and the threaded hole is sleeved with a jack screw (3), the top of the jack screw (3) is sleeved with a long tooth sleeve (31), and the bottom of the jack screw (3) is a plum blossom cross structure; The top of the output shaft (22) is sleeved with a driving wheel (23), the main support (1) is rotatably provided with a rotating shaft (4), the top of the rotating shaft (4) is sleeved with a supporting disc (42), and the driving wheel (23) and the supporting disc (42) are wound with a transmission belt (44), and the rotating shaft (4) is provided with a gasket mounting frame (41); The supporting disc (42) is movably sleeved on the outside of the rotating shaft (4), the top of the rotating shaft (4) is provided with a time-sharing driven wheel (43), the transmission belt (44) is respectively provided with a driving groove one (441), a driving groove two (442) and a driving groove three (443) at intervals, and the two sides of the driven wheel (43) are correspondingly fixed with a driving block one (431) and a driving block two (432) through welding, the driving block one (431) and the driving block two (432) are movably connected with the driving groove one (441), the driving groove two (442) and the driving groove three (443), and the driving block one (431) and the driving block two (432) are both elastic and telescopic.

2. The automatic washer and nut installation apparatus of claim 1, wherein: The straight line distance of the driving groove one (441), the driving groove two (442) and the driving groove three (443) on the transmission belt (44) is half of the circumference of the time-sharing driven wheel (43).

3. A device for automatically installing a washer and nut according to claim 2, wherein: The gasket mounting frame (41) is a half circular ring structure which is split into two, and the two half circular rings are opened and closed by a rotary cylinder, and the bottom of the gasket mounting frame (41) is correspondingly provided with an annular magnet (411).

4. The automatic washer and nut installation apparatus of claim 3, wherein: The bottom of the gasket mounting frame (41) is correspondingly provided with a flexible guide bag (413), the flexible guide bag (413) is a slope structure, and the two flexible guide bags (413) are split into a circular truncated cone structure, the gasket mounting frame (41) is correspondingly provided with an air pump (412), and the air pump (412) is connected with the flexible guide bag (413).

5. A device for automatically installing a washer and nut according to claim 4, wherein: The tightening method of the device is: S1, install the screw at the bottom of the jack screw (3) plum blossom cross; S2, place the gasket in the rotationally symmetric position of the gasket mounting frame (41), and place the nut in the rotating station and clamp it; S3, start the motor (2) and drive the jack screw (3) to descend, and when the jack screw (3) descends, the gasket is transferred to the rotating station by the gasket mounting frame (41); S4, tighten the screw and the nut, and loosen the clamping of the gasket, and the screw rotation is completed.

6. A device for automatically installing a washer and nut according to claim 5, wherein: The above steps S3-S4 are: S31, when the screw rod (3) is in the uppermost position, the gasket mounting frame (41) is in the symmetrical position of the rotating station, that is, the feeding station, at this time the annular magnet (411) will attract the uppermost gasket of the neatly stacked gasket stack to the lower side of the annular magnet (411); S32, as the screw rod (3) descends, the time-sharing driven wheel (43) is driven to rotate by the clamping of the driving groove two (442) and the driving block one (431), after half a rotation, the time-sharing driven wheel (43) reaches the rotating screw station, at this time the gasket mounting frame (41) rotates 180° to the left side, and the gasket and the screw rod are overlapped together; S33, start the rotating air cylinder to open the two semicircular rings of the gasket mounting frame (41), loosen the gasket, at this time continue to drive the screw rod (3) to descend, the gasket is sleeved on the screw, and the time-sharing driven wheel (43) continues to rotate to the feeding station by the clamping of the driving groove one (441) and the driving block two (432), after the two are separated, the time-sharing driven wheel (43) stops rotating, the driving block one (431) and the driving block two (432) are retracted, until the screw is tightened, the gasket mounting frame (41) rotates 360 degrees and stops rotating; S34, reverse drive the motor (2) to operate, the screw rod (3) rises, and the main support (1) moves to the next station, and so on.

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