CN214685157U

CN214685157U - Nut screwing device

Info

Publication number: CN214685157U
Application number: CN202120926359.7U
Authority: CN
Inventors: 李达
Original assignee: Truking Technology Ltd
Current assignee: Truking Technology Ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-11-12
Anticipated expiration: 2031-04-29

Abstract

The utility model discloses a device is twisted soon to nut, including the connecting piece, the mount pad, locate the rotation axis on the mount pad, be used for driving the rotatory actuating mechanism of rotation axis and be used for pressing from both sides tight nut's tight head of clamp, the center of rotation axis is run through and is equipped with the slide bar that can slide along the rotation axis axial, the one end of slide bar is equipped with the connecting seat, but press from both sides tight head and install on the connecting seat through the connecting piece swingably, be equipped with first elastic component and second elastic component between slide bar and the rotation axis, first elastic component and second elastic component are opposite to the axial effort of slide bar. The nut screwing device has the advantages of reducing the friction of the nut, preventing the friction of the nut from being damaged, improving the screwing effect and the like.

Description

Nut screwing device

Technical Field

The utility model relates to a food, pharmaceutical packaging mechanical equipment technical field especially relate to a nut revolve revolves and twists device.

Background

The existing nut screwing device comprises a mounting seat, a rotating shaft arranged on the mounting seat, a lifting shaft arranged at the center of the rotating shaft and a nut clamping head arranged at the bottom end of the lifting shaft, wherein a buffer spring tightly abutted against the lifting shaft is arranged in the middle of the rotating shaft, the nut is prevented from rigidly colliding with a threaded sleeve (stud), but when the nut clamping head presses down the nut, due to the elastic force of the buffer spring, the extrusion force of the nut and the threaded sleeve can be increased, the friction between the nut and the threaded sleeve is increased, the service lives of the nut and the threaded sleeve are damaged, and the screwing effect is poor. And, press from both sides tight head and lift axle bottom end fixed connection, when pressing from both sides tight nut of tight head and the butt joint of swivel nut, if nut and swivel nut disalignment, be difficult to realize butt joint between them, can cause even both direct collisions and damage both to, at the in-process of nut screw in swivel nut, the thread between both probably misplaces the extrusion, damages the thread between barrel and the nut.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide one kind can reduce the nut friction, prevent that the nut friction is impaired and improve the nut of twisting the effect soon and twist the device soon.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a device is twisted soon to nut, includes connecting piece, mount pad, locates rotation axis on the mount pad, is used for driving the rotatory actuating mechanism of rotation axis and is used for pressing from both sides tight head of clamp nut, the center of rotation axis is run through and is equipped with the slide bar that can slide along the rotation axis axial, the one end of slide bar is equipped with the connecting seat, press from both sides tight head and install on the connecting seat through the connecting piece swingably, be equipped with first elastic component and second elastic component between slide bar and the rotation axis, first elastic component and second elastic component are opposite to the axial force of slide bar.

As a further improvement of the above technical solution:

the connecting piece activity runs through in the connecting seat, and has the clearance between connecting piece and the connecting seat, press from both sides tight head and locate on the connecting piece.

The connecting seat is provided with a through hole in a penetrating manner, the connecting piece penetrates through the through hole and is connected with the clamping head, the gap is formed between the through hole and the connecting piece, and one end, far away from the clamping head, of the connecting piece is provided with a limiting part larger than the through hole.

The clamping head comprises a bearing seat and a plurality of clamping jaws which can be closed and opened, the bearing seat is arranged on the connecting piece, and the clamping jaws are arranged around the center of the bearing seat at intervals.

And an air channel for ventilating the clamping jaw to provide power is arranged at the center of the sliding rod.

The bearing seat is connected to the connecting piece through threads

And one end of the sliding rod, which is far away from the clamping head, is provided with a stop piece, and the second elastic piece is arranged between the stop piece and the rotating shaft.

The first elastic piece is arranged in the rotating shaft, and the first elastic piece and the second elastic piece are both springs sleeved on the sliding rod.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a device is twisted soon to nut, actuating mechanism are used for the drive rotation axis rotatory, and it is rotatory to drive clamp head, and first elastic component and second elastic component are opposite to the axial effort of slide bar, when clamp head pushes down to twist soon the nut, have the elastic force of an elastic component upward at least to, thereby, reduced between clamp head and the nut, the pressure of supporting between nut and the swivel nut, reduce the friction and play the powder, avoid damaging the nut. The clamping head can be arranged on the connecting seat in a swinging mode through the connecting piece, the effect similar to universal connection is achieved, the nut can swing freely to be screwed, and the nut can be inserted into the threaded sleeve in an automatic guiding mode. The nut screwing device can reduce the friction of the nut, prevent the friction of the nut from being damaged and improve the screwing effect.

Drawings

Fig. 1 is a front view of the nut screwing device according to the present invention.

Fig. 2 is a schematic perspective view of a clamping head of a mounting seat of the nut screwing device according to the present invention.

Fig. 3 is a schematic cross-sectional structural view of the clamping head of the mounting seat of the nut screwing device according to the present invention.

Fig. 4 is a schematic view of the nut screwing device according to the present invention in a partial sectional structure.

The reference numerals in the figures denote:

1. a mounting seat; 2. a rotating shaft; 3. a drive mechanism; 4. a slide bar; 41. a stop member; 42. an air duct; 43. a connecting seat; 431. a through hole; 5. a clamping head; 51. a bearing seat; 52. a clamping jaw; 6. a first elastic member; 7. a second elastic member; 9. a connecting member; 91. a gap; 92. a limiting part.

Detailed Description

The invention will be described in further detail with reference to the drawings and specific examples.

Fig. 1 to 4 show an embodiment of the nut screwing device of the present invention, which comprises a connecting member 9, a mounting base 1, a rotating shaft 2 disposed on the mounting base 1, a driving mechanism 3 for driving the rotating shaft 2 to rotate, and a clamping head 5 for clamping the nut, wherein the center of the rotating shaft 2 is provided with a sliding rod 4 capable of sliding axially along the rotating shaft 2, one end of the sliding rod 4 is provided with a connecting base 43, the clamping head 5 is swingably mounted on the connecting base 43 through the connecting member 9, a first elastic member 6 and a second elastic member 7 are disposed between the sliding rod 4 and the rotating shaft 2, and axial acting forces of the first elastic member 6 and the second elastic member 7 on the sliding rod 4 are opposite.

The overall screwing working process is as follows: a, a driving mechanism 3 drives a rotating shaft 2 to rotate at a certain rotating speed, the rotating shaft 2 drives a sliding rod 4 and a clamping head 5 to rotate, meanwhile, the whole nut screwing device moves downwards under the driving of a lifting device (not shown in the drawing), and when the clamping head 5 moves downwards to reach a nut placing position, each clamping jaw 52 clamps a nut; b. after the nut is clamped, the nut continues to move downwards to reach the position where the threaded sleeve is placed, the nut is in butt joint with the threaded sleeve, and due to the upward acting force of the second elastic piece 7 on the sliding rod 4, the nut and the threaded sleeve are in flexible contact, so that damage caused by rigid collision is avoided; c. after the nut is in butt joint with the threaded sleeve, the clamping head 5 moves downwards while rotating, the nut is screwed into the threaded sleeve, and due to the elastic action of the first elastic piece 6, in the process of screwing down the nut, the nut is in flexible contact with the threads of the threaded sleeve, so that abrasion caused by rigid extrusion between the threads of the nut and the threaded sleeve is avoided.

The driving mechanism 3 is used for driving the rotating shaft 2 to rotate to drive the clamping head 5 to rotate, the axial acting force of the first elastic piece 6 and the axial acting force of the second elastic piece 7 on the sliding rod 4 are opposite, when the clamping head 5 presses down and screws the nut, the elastic force of at least one elastic piece is upward, and therefore the abutting pressure between the clamping head 5 and the nut and between the nut and the screw sleeve are reduced, friction powder is reduced, and damage to the nut is avoided. The clamping head 5 is arranged on the connecting seat 43 in a swinging mode through the connecting piece 9, the effect similar to universal connection is achieved, the nut can swing freely to be screwed, and the nut is inserted into the screw sleeve in an automatic guiding mode. The nut screwing device can reduce the friction of the nut, prevent the friction of the nut from being damaged and improve the screwing effect.

In this embodiment, as shown in fig. 3, the connecting element 9 is movably inserted into the connecting seat 43, a gap 91 is formed between the connecting element 9 and the connecting seat 43, and the clamping head 5 is disposed on the connecting element 9. Since the gap 91 is provided between the connecting member 9 and the connecting seat 43, a swing space of the clamping head 5 is provided, and the clamping head 5 can be adjusted in a swing manner within the limit range of the gap 91. Specifically, a through hole 431 penetrates through the connecting seat 43, the connecting piece 9 penetrates through the through hole 431 and is connected with the clamping head 5, a gap 91 is formed between the through hole 431 and the connecting piece 9, and a limiting part 92 larger than the through hole 431 is arranged at one end, away from the clamping head 5, of the connecting piece 9.

In this embodiment, as shown in fig. 1 to 3, the clamping head 5 includes a bearing seat 51 and a plurality of jaws 52 that can be drawn together and opened, the bearing seat 51 is disposed on the connecting member 9, and the jaws 52 are spaced around the center of the bearing seat 51. Specifically, the bearing seat 51 is screwed with the connecting piece 9, the clamping jaws 52 are slidably arranged on the bearing seat 51, and each clamping jaw 52 can simultaneously move towards the center of the bearing seat 51 to clamp the nut. The connecting base 43 is provided with a plurality of through holes 431, the connecting piece 9 penetrates through each through hole 431, the bearing base 51 is connected with the connecting base 43 through the plurality of connecting pieces 9, and the bearing base 51 can be adjusted along with the swinging of the connecting pieces 9 because the connecting pieces 9 can be adjusted in the through holes 431 in a swinging mode.

In this embodiment, as shown in fig. 4, the slide bar 4 is centrally provided with an air passage 42 for ventilating the clamping jaw 52 to provide power. Compressed air is delivered through the air passage 42 into the jaws 52 to move the jaws 52.

In this embodiment, as shown in fig. 4, an end of the sliding rod 4 away from the clamping head 5 is provided with a stop member 41, and the second elastic member 7 is disposed between the stop member 41 and the rotating shaft 2. When the sliding rod 4 has a tendency of pressing down the nut, the abutting member 41 presses the second elastic member 7, and the abutting member 41 pushes the rotating shaft 2 upward under the external acting force of the second elastic member 7, so as to neutralize the downward acting force of the sliding rod 4, reduce the abutting force of the clamping head 5 on the nut, and reduce the friction.

In this embodiment, the first elastic element 6 is disposed in the rotating shaft 2, and both the first elastic element 6 and the second elastic element 7 are springs sleeved on the sliding rod 4. The second elastic element 7 is arranged outside the rotating shaft 2, after the installation is finished, the first elastic element 6 and the second elastic element 7 are both in a compressed state and have outward stretching force, and the elastic force of the second elastic element 7 can enable the sliding rod 4 and the clamping head 5 to be in a vacuum suspension state. The clamping head 5 moves downwards, when the clamping head 5 abuts against the nut, the sliding rod 4 and the clamping head 5 bear a relative recoil force, and at the moment, the first elastic piece 6 is compressed under a force, relieves the recoil force and becomes in flexible contact.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.

Claims

1. A nut screwing device is characterized in that: including connecting piece (9), mount pad (1), locate rotation axis (2) on mount pad (1), be used for driving rotatory actuating mechanism (3) of rotation axis (2) and be used for pressing from both sides tight head (5) of nut, the center of rotation axis (2) is run through and is equipped with slide bar (4) that can follow rotation axis (2) axial and slide, the one end of slide bar (4) is equipped with connecting seat (43), press from both sides tight head (5) and can install on connecting seat (43) through connecting piece (9) swingably, be equipped with first elastic component (6) and second elastic component (7) between slide bar (4) and rotation axis (2), axial effort of first elastic component (6) and second elastic component (7) to slide bar (4) is opposite.

2. The nut turning apparatus according to claim 1, characterized in that: the connecting piece (9) movably penetrates through the connecting seat (43), a gap (91) is formed between the connecting piece (9) and the connecting seat (43), and the clamping head (5) is arranged on the connecting piece (9).

3. The nut turning apparatus according to claim 2, characterized in that: the connecting base (43) is provided with a through hole (431) in a penetrating manner, the connecting piece (9) is arranged in the through hole (431) in a penetrating manner and is connected with the clamping head (5), the gap (91) is formed between the through hole (431) and the connecting piece (9), and one end, far away from the clamping head (5), of the connecting piece (9) is provided with a limiting part (92) larger than the through hole (431).

4. The nut turning apparatus according to claim 1, characterized in that: the clamping head (5) comprises a bearing seat (51) and a plurality of clamping jaws (52) which can be closed and opened, the bearing seat (51) is arranged on the connecting piece (9), and the clamping jaws (52) are arranged around the center of the bearing seat (51) at intervals.

5. The nut turning apparatus according to claim 4, characterized in that: the center of the sliding rod (4) is provided with an air duct (42) for ventilating the clamping jaw (52) to provide power.

6. The nut turning apparatus according to claim 4, characterized in that: the bearing seat (51) is in threaded connection with the connecting piece (9).

7. The nut screwing device according to any one of claims 1 to 6, wherein: one end of the sliding rod (4) far away from the clamping head (5) is provided with a stop piece (41), and the second elastic piece (7) is arranged between the stop piece (41) and the rotating shaft (2).

8. The nut turning apparatus according to claim 7, characterized in that: the first elastic piece (6) is arranged in the rotating shaft (2), and the first elastic piece (6) and the second elastic piece (7) are both springs sleeved on the sliding rod (4).