CN114952690A

CN114952690A - Visual anti-rotation electric tightening gun

Info

Publication number: CN114952690A
Application number: CN202210579199.2A
Authority: CN
Inventors: 苏志勇; 马佳军; 郭健冬; 赵岩; 薛钰; 马英通
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-08-30

Abstract

The invention relates to a visual anti-rotation electric tightening gun which mainly comprises a tightening gun shell, a tightening gun main body, a fixing structure, a spring, a quincunx sleeve head, a transmission shaft, a gear A, a gear B, a hexagonal sleeve head, a camera, a display screen rotating shaft and a display screen, wherein the tightening gun shell is arranged on the tightening gun main body; the fixing structure is fixed on the anti-rotation electric tightening gun main body; the quincunx sleeve head is matched with the quincunx hinge bolt, so that the hinge and the back door are in fixed positions in the nut screwing process; the hinge and the back door are basically in fixed positions in the nut screwing process, the size precision state of the back door and the periphery parts is improved, and the extra adjusting working time is reduced; the invention realizes single-person and single-hand operation without matching with an additional structure. Simultaneously through being equipped with camera and display screen, can look over the alignment state of nut and bolt under narrow and small space in real time, screw up the nut fast, reduce waste of man-hour and operation workman fatigue degree.

Description

Visual anti-rotation electric tightening gun

Technical Field

The invention relates to a visual anti-rotation electric tightening gun.

Background

The back door of car appears rotatoryly at bolt/nut screw up in-process is a general problem, does not have the control scheme that effectively reduces rotatory influence at present temporarily, and measures such as reverse reservation rotation amount of adoption are generally adopted in the host computer factory, nevertheless because this kind of rotatory variation is unstable, real car assembly effect is not good, still need to increase extra manual work adjustment station and carry out the adjustment of becoming more meticulous again. Meanwhile, when the bolt/nut is screwed up through the vehicle body avoiding hole, a host factory generally adopts a manual visual alignment mode, so that the working hour waste and the fatigue of operators are aggravated. The electronic rifle of screwing up that uses in the market at present only can realize the nut and screw up the function, can't solve the back door and rotate and screw up the difficult problem of operation, consequently develops a new demand that possesses visual rotation electronic rifle of screwing up of preventing when the nut is screwed up and from this and produce.

Fig. 1 is a schematic view of a common bolt connection, which is composed of four parts, namely a bolt, a workpiece 1, a workpiece 2, and a nut, wherein the nut is screwed to drive the bolt to rotate, so that the two workpieces are translated and rotated, the bolt is subjected to unnecessary shear stress, and finally, the bolt may be broken, so that it is necessary to control the phenomenon that the nut is screwed to drive the bolt to rotate. Fig. 2 is an application schematic diagram of a hinge of a back door of an automobile connected by bolts, the back door is connected with the hinge by 2 bolts (equivalent to the workpiece 1 in fig. 1 after being fixed), the hinge is connected with the bolts by a pressure riveting process, and the hinge is connected with an automobile body by bolts/nuts, so that in the nut screwing process, the bolts, the hinge, the back door and other 3 parts can be regarded as an integral part and can synchronously rotate.

Patent document 1(CN202011406225.9) provides a torque gun for automatically positioning a nut/bolt axis, and belongs to the technical field of tools. The device comprises a torque gun, an attitude sensor and a microcomputer, wherein the attitude sensor and the microcomputer are installed on the torque gun, the microcomputer is connected with the attitude sensor through a data line, and the attitude sensor comprises a laser distance sensor and/or a three-axis attitude sensor; the microcomputer receives the detection value of the torque gun attitude sensor, and judges the deviation of the axis direction according to the detection value, and when the deviation of the axis direction is unqualified, the torque gun does not output torque. The invention has the beneficial effects that: the device can ensure that the axis of the rotation of the bolt/nut and the axis of the existing nut/bolt on the part can be automatically positioned when the torque gun is screwed down, and reduce the requirements on the skill and experience of an operator; the problem that the vertical operation of the torque gun is difficult to control is solved, the assembly speed of an operator is improved, and the labor intensity of workers is reduced; simple structure, convenient operation is nimble.

Patent document 2(CN201611002036.9) discloses a threaded interface damper with an anti-rotation structure, which includes a damper housing, a damper core, and a drawbar, and is characterized in that: the traction rod comprises a section of connecting part with the buffer core; the draw bar is in threaded connection with the buffer core through a connecting part; and a primary anti-rotation structure for limiting the rotation of the traction rod and the buffer core is arranged on the traction rod and the buffer core. The invention discloses a buffer structure, which is characterized in that a two-stage anti-rotation structure for limiting the rotation of a traction rod and a buffer shell is arranged between the traction rod and the buffer shell. The structure is flexible, and the adaptability is strong.

Patent document 3(CN202020748024.6) discloses an end connecting device of a torque gun tightening apparatus. The end connecting device of the torque gun screwing equipment is used for the torque gun screwing equipment and comprises a moving device, a positioning device group and a torque gun, wherein the positioning device group and the torque gun are connected to the tail end of the moving device; the terminal dwang upper end is provided with and can passes the extension of connecting portion, the top rigid coupling of extension have can with increase the clamp structure that hinders the board clamp and live, through reforming transform the structure to the support demand that adapts to narrow, crooked complicated surface such as skylight frame.

Patent document 1 describes mainly solving the axial deviation in nut/bolt fastening, not solving the problem of rotation in nut/bolt fastening. The rotation prevention function described in patent document 2 is mainly achieved by means of the threaded connection between the damper cores, rather than by the mating of a quincunx sleeve head and a quincunx bolt. The torque gun tightening apparatus described in patent document 3 is mainly intended to solve the support requirement of narrow, curved complex surfaces such as skylight frames, and not to solve the rotation problem at the time of nut/bolt fastening.

Disclosure of Invention

The invention mainly aims to solve 2 problems, firstly, in the process that the automobile back door is connected with an automobile body through a bolt/nut, the nut is screwed down to drive the bolt, a hinge and the back door to rotate, so that the installation position of the back door on the automobile body is changed, the dimensional precision state of the back door and peripheral parts such as a side wall, a back tail lamp and a rear bumper is influenced, the rotation change is extremely unstable, and an operator needs to increase the additional adjustment working time by more than 25%; secondly, when the back door is connected with the vehicle body through the bolt/nut, the operation worker needs to raise up and repeatedly compare to accurately fasten the nut to the bolt due to limited operation space and shielding of the structure of the tightening gun, so that work time waste and fatigue of the operation worker are caused. The invention provides a visual anti-rotation electric tightening gun.

The generation of visual anti-rotation electric tightening gun can avoid the 2 problems. Through being equipped with a plum blossom shape cover barrel head (with the bolt cooperation that the tip is the plum blossom shape, play the effect of fixing bolt, hinge, back door position) and a hexagon cover barrel head (with the nut cooperation, play the effect of screwing up the nut), realize that bolt, hinge, back door are in fixed position basically at the nut in-process of screwing up, promote back door and border part size precision state, reduce extra adjustment man-hour more than 25%. Simultaneously through being equipped with camera and display screen, can look over the alignment state of nut and bolt in real time, screw up the nut fast, reduce the waste of man-hour and operate workman fatigue degree.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

In order to solve the technical problems, the invention is realized by adopting the following technical scheme:

a visual anti-rotation electric tightening gun mainly comprises a tightening gun main body 2, a fixing structure 3, a spring 4, a quincunx sleeve head 5 and a hexagonal sleeve head 9;

the fixing structure 3 is fixed on the tightening gun main body 2 and is used for supporting the quincunx sleeve head 5 and the hexagonal sleeve head 9; the spring 4 is sleeved on the quincunx sleeve head 5; the quincunx socket head 5 is located inside a hexagonal socket head 9.

Further, the tightening gun body 2 is used as a main body structure and integrates the functions of a switch key, a battery and torque output.

Furthermore, the tightening gun further comprises a tightening gun shell 1, wherein the quincunx sleeve head 5 is positioned inside a hexagonal sleeve head 9 and can freely stretch and retract; the hexagonal socket head 9, the fixing structure 3 is located inside the tightening gun housing 1.

Furthermore, the quincunx sleeve head 5 is provided with a quincunx sleeve head limiting structure, the quincunx sleeve head limiting structure ensures that the spring 4 is in a compressed state during working, and simultaneously ensures that the quincunx sleeve head 5 cannot be completely separated from the hexagonal sleeve head 9.

Furthermore, the quincunx sleeve head 5 is matched with the quincunx hinge bolt to fix the bolt, the hinge and the back door position when the nut is screwed down.

Furthermore, the spring 4 is in a compressed state during operation and in an extended state during non-operation, so that the quincunx sleeve head 5 is ensured to extend out of the hexagonal sleeve head 9.

Further, the device also comprises a connecting shaft 6, a gear A7 and a gear B8; the hexagonal sleeve head 9 is connected with the tightening gun body 2 through the transmission shaft 6, the gear A7 and the gear B8, receives the torque output by the tightening gun body 2, and realizes nut tightening.

A visual anti-rotation electric tightening gun further comprises a camera 10, a display screen rotating shaft 11 and a display screen 12; the camera 10 is fixed at the front end of the tightening gun shell 1, and the display screen 12 is fixed at the rear end of the tightening gun shell 1 through a display screen rotating shaft 11; the matching state of the quincunx sleeve head 5 and the quincunx hinge bolt is visually observed through the camera 10 and the display screen 12.

Further, the display screen 12 rotates around the rotation shaft, and 270 ° rotation can be realized.

Further, the display screen 12 rotates around the axis, and 360-degree rotation can be achieved.

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

the invention ensures that the hinge and the back door are basically in fixed positions in the nut screwing process through the matching of the quincunx sleeve head and the quincunx hinge bolt.

The invention realizes that the hinge and the back door are basically in fixed positions in the nut screwing process, improves the dimensional precision state of the back door and the periphery parts, and reduces the additional adjusting working time.

The invention realizes single-person and single-hand operation without matching with an additional structure.

Simultaneously through being equipped with camera and display screen, can look over the alignment state of nut and bolt under narrow and small space in real time, screw up the nut fast, reduce waste of man-hour and operation workman fatigue degree.

Drawings

The invention is further described with reference to the accompanying drawings in which:

FIG. 1 is a schematic view of a typical bolted connection;

FIG. 2 is a schematic view of a back door hinge connection;

FIG. 3 is a schematic view of the back door in connection with the vehicle body;

FIG. 4 is a view of a visual anti-spin electric tightening gun;

FIG. 5 is a schematic view of a hexagonal socket head, retaining structure located within a tightening gun housing.

FIG. 6 is a cross-sectional view of a visual anti-spinning electric tightening gun;

FIG. 7 is a view showing the relationship between a quincunx socket head and a hexagonal socket head;

FIG. 8 is a view of the display screen in a rotated position about the axis of rotation;

FIG. 9 is a view of the display screen in a rotated position about the axis;

in the figure:

1. screw up rifle shell, 2, screw up rifle main part, 3, fixed knot construct, 4, spring, 5, plum blossom shape cover barrel head, 6, transmission shaft, 7, gear A, 8, gear B, 9, hexagon cover barrel head, 10, camera, 11, display screen pivot, 12, display screen

Detailed Description

In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. 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. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.

The invention is described in detail below with reference to the attached drawing figures:

fig. 4 is a structural view of the visual anti-rotation electric tightening gun according to the present invention.

Visual anti-rotation electric tightening gun mainly comprises an anti-rotation electric tightening gun shell 1, an anti-rotation electric tightening gun main body 2, a fixing structure 3, a spring 4, a quincunx sleeve head 5, a connecting shaft 6, a gear A7, a gear B8, a hexagonal sleeve head 9, a camera 10, a display screen rotating shaft 11 and a display screen 12.

The tightening gun main body 2 is used as a main body structure and integrates functions of a switch key, a battery, torque output and the like, and the fixing structure 3 is fixed on the tightening gun main body 2 and plays a role in supporting and fixing the functions of the quincunx sleeve head 5, the hexagonal sleeve head 9 and the like;

the quincunx sleeve head 5 and the spring 4 are positioned in the hexagonal sleeve head 9 and can freely stretch out and draw back, the quincunx sleeve head 5 is matched with the quincunx hinge bolt to play a role in fixing the position of the hinge bolt, the spring 4 is in a compressed state during working and is in an extended state during non-working, the quincunx sleeve head 5 is ensured to extend out of the hexagonal sleeve head 9, and whether the quincunx hinge bolt is matched or not can be visually observed;

the hexagonal sleeve head 9 is connected with the gear B8, the gear A7 and the connecting shaft 6 to receive the torque output by the tightening gun body 2, and the hexagonal sleeve head 9 is driven to rotate through the matching of shaft teeth to realize the nut tightening.

The visualized anti-rotation electric tightening gun is provided with a quincunx sleeve head 5 and a hexagonal sleeve head 9.

The invention realizes the free extension of the quincunx sleeve head through the spring structure, and can visually observe whether the quincunx sleeve head is matched with the quincunx hinge bolt or not.

The invention transmits torque to the hexagonal sleeve head through the shaft teeth for tightening the nut.

Fig. 5 is a schematic view of a hexagonal socket head, a fixing structure, in a tightening gun housing, and fig. 6 is a cross-sectional view of a visual anti-rotation electric tightening gun. In fig. 5: the gun comprises a tightening gun shell, a tightening gun main body, a fixing structure, a spring, a quincunx sleeve head, a transmission shaft, a gear A, a gear B, a hexagonal sleeve head, a camera, a display screen rotating shaft and a display screen. The ' tightening gun main body ' is used as a main body structure and integrates functions of a switch key, a battery, torque output and the like, and the ' fixing structure ' is fixed on the ' tightening gun main body and plays a role in supporting and fixing functions of structures such as a quincunx sleeve head and a hexagonal sleeve head; the quincunx sleeve head is positioned inside the hexagonal sleeve head, can be freely stretched and contracted, is matched with the quincunx hinge bolt, and plays a role in fixing the bolt, the hinge and the back door when the nut is screwed down.

Fig. 7 is a diagram of a matching relationship between a quincunx sleeve head and a hexagonal sleeve head, wherein the quincunx sleeve head limiting structure ensures that a spring is in a compressed state during working, and simultaneously ensures that the quincunx sleeve head cannot be completely separated from the hexagonal sleeve head, and the matching state of the quincunx sleeve head and a quincunx hinge bolt is visually observed through a camera and a display screen, so that the alignment efficiency of an operator is improved; the hexagonal sleeve head is connected with the tightening gun main body through the transmission shaft, the gear A and the gear B, receives the torque output by the tightening gun main body and realizes the tightening of the nut.

FIG. 8 is a view of the display screen in a rotated position about the axis of rotation, which may achieve 270 rotation.

FIG. 9 is a display screen and rotates the position picture around the axle center, can realize 360 rotations, can satisfy the convenience of image observation under different tightening angles, the direction, promotes operation workman comfort level.

The invention comprises the following steps:

firstly, the tightening gun is provided with a quincuncial sleeve head and a hexagonal sleeve head.

Secondly, the free extension of the quincunx sleeve head is realized through the spring structure, and whether the quincunx hinge bolt is matched with the quincunx hinge bolt can be visually observed.

And thirdly, transmitting the torque to the hexagonal sleeve head through the matching of the shaft teeth for fastening the nut.

And fourthly, the plum blossom-shaped sleeve head is matched with the plum blossom-shaped hinge bolt, so that the hinge and the back door are basically in fixed positions in the nut screwing process.

The single-hand operation can be realized without matching with an additional structure.

Sixthly, the tightening gun has the functions of tightening and loosening the nut.

The display screen can rotate around the rotating shaft by 270 degrees and rotate around the axis by 360 degrees, the convenience of image observation in different tightening angles and directions can be met, and the comfort level of operators is improved.

The above description is only for the purpose of illustrating the embodiments of the present invention, and the scope of the present invention should not be limited thereto, and any modifications, equivalents and improvements made by those skilled in the art within the technical scope of the present invention as disclosed in the present invention should be covered by the scope of the present invention. And those not described in detail in this specification are well within the skill of those in the art.

Claims

1. The utility model provides a visual rotation of preventing electronic rifle of screwing up which characterized in that:

mainly comprises a tightening gun main body (2), a fixing structure (3), a spring (4), a quincunx sleeve head (5) and a hexagonal sleeve head (9);

the fixing structure (3) is fixed on the tightening gun main body (2) and is used for supporting the quincuncial sleeve head (5) and the hexagonal sleeve head (9); the spring (4) is sleeved on the quincunx sleeve head (5); the quincunx sleeve head (5) is positioned inside the hexagonal sleeve head (9).

2. The visual anti-rotation electric tightening gun according to claim 1, characterized in that:

the tightening gun main body (2) is used as a main body structure and integrates switch keys, a battery and a torque output function.

3. The visual anti-rotation electric tightening gun according to claim 2, characterized in that:

the device also comprises a screwing gun shell (1); the quincunx sleeve head (5) is positioned inside the hexagonal sleeve head (9) and can freely stretch out and draw back; the hexagonal sleeve head (9) and the fixing structure (3) are positioned in the tightening gun shell (1).

4. The visual anti-rotation electric tightening gun according to claim 3, characterized in that:

plum blossom-shaped sleeve head (5) is provided with a plum blossom-shaped sleeve head limiting structure, the plum blossom-shaped sleeve head limiting structure ensures that the spring (4) is in a compressed state during working, and simultaneously ensures that the plum blossom-shaped sleeve head (5) can not be completely separated from the hexagonal sleeve head (9).

5. The visual anti-rotation electric tightening gun according to claim 4, characterized in that:

the quincunx sleeve head (5) is matched with the quincunx hinge bolt to fix the bolt, the hinge and the back door when the nut is screwed down.

6. The visual anti-rotation electric tightening gun according to claim 5, characterized in that:

the spring (4) is in a compressed state during working and in an extended state during non-working, and the quincunx sleeve head (5) is ensured to extend out of the hexagonal sleeve head (9).

7. The visual anti-rotation electric tightening gun according to claim 6, wherein:

the device also comprises a connecting shaft (6), a gear A (7) and a gear B (8); the hexagonal sleeve head (9) is connected with the tightening gun main body (2) through the transmission shaft (6), the gear A (7) and the gear B (8), receives torque output by the tightening gun main body (2), and achieves nut tightening.

8. The visual anti-rotation electric tightening gun according to any one of claims 1 to 7, wherein:

the device also comprises a camera (10), a display screen rotating shaft (11) and a display screen (12); the camera (10) is fixed at the front end of the tightening gun shell (1), and the display screen (12) is fixed at the rear end of the tightening gun shell (1) through a display screen rotating shaft (11); the matching state of the quincunx sleeve head (5) and the quincunx hinge bolt is visually observed through the camera (10) and the display screen (12).

9. The visual anti-rotation electric tightening gun according to claim 8, wherein:

the display screen (12) rotates around the rotating shaft, and can rotate by 270 degrees.

10. The visual anti-rotation electric tightening gun according to claim 9, characterized in that:

the display screen (12) rotates around the axis, and can rotate for 360 degrees.