CN214641647U

CN214641647U - Guiding device and automatic tightening system

Info

Publication number: CN214641647U
Application number: CN202120672967.XU
Authority: CN
Inventors: 逄吉明
Original assignee: Autoliv Development AB
Current assignee: Autoliv Development AB
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-11-09
Anticipated expiration: 2031-04-01

Abstract

The utility model discloses a guiding device, which comprises a telescopic mechanism and at least one group of clamping mechanisms, wherein the telescopic mechanism is connected with the clamping mechanisms; the telescopic mechanism is used for driving the clamping mechanism to do telescopic motion along the direction close to or far away from the piece to be clamped; and the clamping mechanism comprises a pair of clamping jaws which can move in an opening and closing manner, and when the clamping jaws clamp the piece to be clamped, the clamping mechanism is used for limiting the verticality of the piece to be clamped. The utility model also discloses an automatic system of screwing up. The utility model discloses in take fixture to near treating the holder through telescopic machanism, then fixture's a pair of clamping jaw will treat that the holder presss from both sides tightly for the straightness that hangs down of holder is treated in the restriction. Subsequent tightening operation is convenient, the assembly of the clamping piece to be treated can be ensured to be in place, and the assembly efficiency is improved.

Description

Guiding device and automatic tightening system

Technical Field

The utility model relates to a technical field of direction equipment especially relates to a straightness's that hangs down guider and automatic system of screwing up before guaranteeing the part to screw up.

Background

The automatic screwing equipment is used for automatically screwing the bolt, and the assembling efficiency is improved. However, the existing automatic tightening equipment cannot guide the bolt, so that the perpendicularity before tightening is guaranteed. In the screwing process, the phenomenon of blocking or dislocation easily occurs, so that the bolt is scrapped, and the assembly efficiency is reduced.

Therefore, it is necessary to design a guide device and an automatic tightening system for ensuring the perpendicularity of parts before tightening.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a straightness's guider and automatic system of screwing up that is used for guaranteeing the part to screw up before.

The technical scheme of the utility model provides a guiding device, which comprises a telescopic mechanism and at least one group of clamping mechanisms, wherein the telescopic mechanism is connected with the clamping mechanisms;

the telescopic mechanism is used for driving the clamping mechanism to do telescopic motion along the direction close to or far away from the piece to be clamped;

and the clamping mechanism comprises a pair of clamping jaws which can move in an opening and closing manner, and when the clamping jaws clamp the piece to be clamped, the clamping mechanism is used for limiting the verticality of the piece to be clamped.

Furthermore, a set of fixture still includes the cylinder, the cylinder with the clamping jaw is connected for drive a pair of the clamping jaw makes the motion of opening and shutting.

Furthermore, the front ends of the clamping jaws are provided with semicircular grooves, and the semicircular grooves of the clamping jaws are opposite to each other.

Further, the rear end of clamping jaw is equipped with the installation department, the cylinder orientation the clamping jaw extends the connection piece, the connection piece with the connection can be dismantled to the installation department.

Furthermore, the middle section of the clamping jaw is provided with an inclined part, the inclined part is connected with the front end of the clamping jaw and the rear end of the clamping jaw, the inclined parts of the clamping jaws in the same group incline towards the same direction, and the inclined parts of the clamping jaws between adjacent groups incline towards opposite directions.

Further, telescopic machanism includes fixed block, slider, slide rail and base, the fixed block is connected fixture with between the slider, the slider is followed the slide rail slides back and forth, the slide rail is fixed on the base.

The utility model also discloses an automatic system of screwing up, including automatic equipment of screwing up, still include above-mentioned arbitrary guider.

Further, the to-be-clamped piece is a bolt;

the automatic screwing equipment comprises an inserting seat and a nut gun, the bolt is inserted into the inserting seat, the clamping jaws clamp the bolt, and the nut gun screws the nut and the bolt.

Further, the telescopic mechanism further comprises a control unit, and the control unit is used for controlling the telescopic motion of the telescopic mechanism and the opening and closing motion of the clamping jaws.

Further, the clamping device comprises a verticality detection device, and when the clamping jaws clamp the to-be-clamped piece, the verticality detection device is used for detecting the verticality of the to-be-clamped piece.

After adopting above-mentioned technical scheme, have following beneficial effect:

the utility model discloses in take fixture to near treating the holder through telescopic machanism, then fixture's a pair of clamping jaw will treat that the holder presss from both sides tightly for the straightness that hangs down of holder is treated in the restriction. Subsequent tightening operation is convenient, the assembly of the clamping piece to be treated can be ensured to be in place, and the assembly efficiency is improved.

Drawings

The disclosure of the present invention will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present disclosure. In the figure:

fig. 1 is a schematic view of an automatic tightening system in an embodiment of the present invention;

fig. 2 is a schematic view of a guide device according to another embodiment of the present invention;

FIG. 3 is a schematic view of a clamping mechanism according to another embodiment of the present invention;

FIG. 4 is a schematic view of a clamping jaw and cylinder in another embodiment of the present invention;

fig. 5 is a schematic view of a jaw in another embodiment of the present invention.

Reference symbol comparison table:

the guide device 10:

the telescoping mechanism 1: the device comprises a fixed block 11, a slide block 12, a slide rail 13 and a base 14;

the clamping mechanism 2: the clamping jaw 21, the air cylinder 22, the semicircular groove 211, the mounting part 212, the inclined part 213, the mounting hole 214 and the connecting piece 221;

the automatic tightening apparatus 20: an insert seat 201, a nut gun 202;

the member to be clamped 30.

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

It is easily understood that, according to the technical solution of the present invention, a plurality of structural modes and implementation modes that can be mutually replaced by those of ordinary skill in the art can be achieved without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are only exemplary illustrations of the technical solutions of the present invention, and should not be construed as limiting or restricting the technical solutions of the present invention in its entirety or as a limitation of the present invention.

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.

The first embodiment is as follows:

as shown in fig. 1-2, the guiding device 10 includes a telescoping mechanism 1 and at least one group of clamping mechanisms 2, wherein the telescoping mechanism 1 is connected with the clamping mechanisms 2;

the telescopic mechanism 1 is used for driving the clamping mechanism 2 to do telescopic motion along the direction close to or far away from the piece to be clamped 30;

the clamping mechanism 2 comprises a pair of clamping jaws 21, wherein the pair of clamping jaws 21 can perform opening and closing movement and are used for limiting the verticality of the member to be clamped 30 when the pair of clamping jaws 21 clamps the member to be clamped 30.

Specifically, telescopic machanism 1 can follow linear telescopic motion, and when telescopic machanism 1 stretched out, drive fixture 2 and remove towards the direction that is close to treating holder 30 for at least a pair of clamping jaw 21 of fixture 2 can stretch into the both sides of treating holder 30.

As shown in fig. 1, two pairs of clamping jaws 21 respectively extend into two sides of two members to be clamped 30 to embrace the members to be clamped 30, the clamping jaws 21 are in an open state, and the clamping jaws 21 do not clamp the members to be clamped 30 yet.

Then, the pair of clamping jaws 21 are controlled to move towards the direction of approaching each other, so as to clamp the middle member to be clamped 30, and the verticality of the member to be clamped 30 is ensured.

In this embodiment, treat that holder 30 is the bolt, right after a pair of clamping jaw 21 presss from both sides the bolt tightly for the central axis of bolt and bolt hole is aimed at, when preventing bolt and nut assembly, the condition of dead or dislocation appears blocking.

Alternatively, the member to be clamped 30 may be a screw or a bolt, or other parts requiring verticality limitation.

When the bolt is tightened, the jaws 21 are opened again and the bolt is loosened; finally, the telescopic mechanism 1 retracts to drive the clamping mechanism 2 to move away for preparing for the next work.

Further, as shown in fig. 2-3, the group of clamping mechanisms 2 further includes an air cylinder 22, and the air cylinder 22 is connected to the clamping jaws 21 and is used for driving the pair of clamping jaws 21 to perform opening and closing movements.

In this embodiment, the clamping mechanisms 2 are provided in two sets, each clamping mechanism 2 includes an air cylinder 22 and a pair of clamping jaws 21, and the air cylinder 22 can control the pair of clamping jaws 21 to open and close.

Further, as shown in fig. 3, the front ends of the jaws 21 are provided with semicircular grooves 211, and the semicircular grooves 211 of the pair of jaws 21 are opposed to each other.

The radius of the semicircular groove 211 matches with the size of the member 30 to be held, and when the pair of jaws 21 are close to each other, the semicircular groove 211 abuts against the outer wall of the member 30 to be held.

The semicircular grooves 211 with different sizes can be selected according to different models of the members 30 to be clamped.

Further, as shown in fig. 4, the rear end of the clamping jaw 21 is provided with a mounting portion 212, the cylinder 22 extends out of a connecting piece 221 towards the clamping jaw 21, and the connecting piece 221 is detachably connected with the mounting portion 212.

The cylinder 22 drives the clamping jaw 21 to move through the connecting piece 221, the connecting piece 221 is provided with two assembling holes (not shown), as shown in fig. 5, the mounting portion 212 is also correspondingly provided with two mounting holes 214, and the mounting holes 214 are aligned with the assembling holes and then connected through screws or bolts.

The connecting piece 221 is detachably connected with the mounting part 212, so that clamping jaws 21 of different types can be replaced conveniently to match with the to-be-clamped piece 30 of different sizes.

Further, as shown in fig. 3 and 4, the middle section of the holding jaws 21 is provided with an inclined portion 213, the inclined portion 213 connects the front end of the holding jaw 21 with the rear end of the holding jaw 21, the inclined portions 213 of the holding jaws 21 of the same group are inclined in the same direction, and the inclined portions 213 of the holding jaws 21 between adjacent groups are inclined in opposite directions.

Specifically, the volume of the front end of the jaw 21 is smallest and the volume of the rear end (i.e., the mounting portion 212) is largest. The semi-circular groove 211 is arranged at the front end, so that the small size is convenient for clamping the piece to be clamped 30, and the interference with peripheral equipment is avoided; the mounting portion 212 needs to be connected to the cylinder 22 and ensure sufficient mounting strength, and is therefore large in size.

The inclined portion 213 is gradually inclined from the front end to the rear end, and gradually transits from small to large in volume. The inclined portions 213 of the same group are inclined in the same direction, and the inclined portions 213 between adjacent groups are inclined in opposite directions.

As shown in fig. 3, the inclined portions 213 of the left group are all inclined to the left, and the inclined portions 213 of the right group are all inclined to the right.

Further, as shown in fig. 2, the telescoping mechanism 1 includes a fixed block 11, a slider 12, a slide rail 13 and a base 14, the fixed block 11 is connected between the clamping mechanism 2 and the slider 12, the slider 12 slides back and forth along the slide rail 13, and the slide rail 13 is fixed on the base 14.

Specifically, the fixed block 11 is L-shaped, the longitudinal surface of the fixed block 11 is connected to the bottom of the cylinder 22, the transverse surface is connected to the top surface of the slider 12, the bottom surface of the slider 12 is slidably connected to the slide rail 13, and the bottom surface of the slide rail 13 is fixedly connected to the base 14. When the sliding block slides back and forth along the sliding rail 13, the fixed block 11 and the clamping mechanism 2 are driven to do telescopic motion.

The sliding of the sliding block 12 along the sliding rail 13 may drive the sliding block 12 mechanically or drive the sliding block 12 to slide electrically.

In this embodiment, the clamping mechanism 2 is brought to the vicinity of the member to be clamped 30 by the telescopic mechanism 1, and then the pair of clamping jaws 21 of the clamping mechanism 2 clamps the member to be clamped 30, so as to limit the verticality of the member to be clamped 30. The subsequent tightening operation is convenient, the assembly of the to-be-clamped piece 30 can be ensured to be in place, and the assembly efficiency is improved.

Example two:

as shown in fig. 1, the automatic tightening system includes an automatic tightening apparatus 20, and further includes a guide 10 according to the first embodiment and the modifications thereof.

The automatic tightening device 20 is used for pre-positioning the member to be clamped 30, the member to be clamped 30 is firstly installed on the automatic tightening device 20, then the guide device 10 clamps the member to be clamped 30, and finally the automatic tightening device 20 tightens the member to be clamped 30.

Further, as shown in fig. 1, the member to be clamped 30 is a bolt;

the automatic tightening apparatus 20 includes an insert seat 201 and a nut gun 202, and after a bolt is inserted into the insert seat 201, a pair of jaws 21 grip the bolt, and the nut gun 202 tightens the nut with the bolt.

Specifically, when the bolt is inserted into insert 201, the pair of jaws 21 are clamped near stud bottom 1/3, and when nut gun 202 is automatically locked to stud top 1/3, jaws 21 are automatically loosened and nut gun 202 continues to lock until completion.

Further, the device also comprises a control unit which is used for controlling the telescopic motion of the telescopic mechanism 1 and the opening and closing motion of the clamping jaws 21.

Specifically, when the to-be-clamped piece 30 is placed in the insertion seat 201, the control unit sends a signal to the guiding device 10, the telescopic mechanism 1 extends out towards the to-be-clamped piece 30, and after the telescopic mechanism extends out to the proper position, the clamping jaw 21 clamps the to-be-clamped piece 30;

when the nut gun 202 is automatically locked, the control unit sends a signal to the guide device 10, the air cylinder 22 controls the clamping jaws 21 to loosen the to-be-clamped piece 30, and then the telescopic mechanism 1 drives the clamping mechanism 2 to retract to the initial position.

Further, the device also comprises a verticality detection device, and when the clamping jaws 21 clamp the to-be-clamped piece 30, the verticality detection device is used for detecting the verticality of the to-be-clamped piece 30.

When the guide device 10 clamps the bolt, the verticality detection device detects that the bolt is not vertical, the automatic tightening system can give an alarm, the bolt is judged to be defective, and the defective product is taken away at the next station to be scrapped. The verticality detection device sends a signal to the control unit, which controls the nut gun 202 not to perform the tightening action and controls the guiding device 10 to loosen the bolt and retract.

Through implementing this embodiment, can promote the assembly efficiency of bolt to detect out the defect product, increase the success rate of assembly.

What has been described above is merely the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principle of the present invention, several other modifications can be made, and the protection scope of the present invention should be considered.

Claims

1. A guiding device (10) is characterized by comprising a telescopic mechanism (1) and at least one group of clamping mechanisms (2), wherein the telescopic mechanism (1) is connected with the clamping mechanisms (2);

the telescopic mechanism (1) is used for driving the clamping mechanism (2) to do telescopic motion along the direction close to or far away from the piece to be clamped;

the clamping mechanism (2) comprises a pair of clamping jaws (21), the clamping jaws (21) can move in an opening and closing mode, and when the clamping jaws (21) clamp the piece to be clamped (30), the clamping mechanism is used for limiting the verticality of the piece to be clamped (30).

2. The guiding device (10) according to claim 1, wherein one set of said clamping mechanisms (2) further comprises an air cylinder (22), said air cylinder (22) is connected to said clamping jaws (21) for driving a pair of said clamping jaws (21) to open and close.

3. Guide device (10) according to claim 1, wherein the front ends of the jaws (21) are provided with semi-circular grooves (211), the semi-circular grooves (211) of a pair of jaws (21) being opposite each other.

4. The guiding device (10) according to claim 2, wherein the rear end of the clamping jaw (21) is provided with a mounting portion (212), the cylinder (22) extends out of a connecting piece (221) towards the clamping jaw (21), and the connecting piece (221) is detachably connected with the mounting portion (212).

5. The guiding device (10) according to claim 4, characterized in that the middle section of the clamping jaws (21) is provided with an inclined portion (213), the inclined portion (213) connects the front end of the clamping jaw (21) with the rear end of the clamping jaw (21), the inclined portions (213) of the clamping jaws (21) of the same group are inclined towards the same direction, and the inclined portions (213) of the clamping jaws (21) between adjacent groups are inclined towards opposite directions.

6. The guiding device (10) according to claim 1, wherein the telescoping mechanism (1) comprises a fixed block (11), a slider (12), a sliding rail (13) and a base (14), the fixed block (11) is connected between the clamping mechanism (2) and the slider (12), the slider (12) slides back and forth along the sliding rail (13), and the sliding rail (13) is fixed on the base (14).

7. An automatic tightening system comprising an automatic tightening device (20), characterized by further comprising a guide (10) according to any one of claims 1 to 6.

8. The automatic tightening system according to claim 7, characterized in that the piece to be clamped (30) is a bolt;

the automatic tightening device (20) comprises an insertion seat (201) and a nut gun (202), after the bolt is inserted into the insertion seat (201), the bolt is clamped by the pair of clamping jaws (21), and the nut gun (202) tightens the nut and the bolt.

9. The automatic tightening system according to claim 7, characterized by further comprising a control unit for controlling the telescopic movement of the telescopic mechanism (1) and the opening and closing movement of the jaws (21).

10. The automatic screwing system according to claim 7, further comprising perpendicularity detection means for detecting the perpendicularity of said member to be clamped (30) when said pair of clamping jaws (21) clamps said member to be clamped (30).