CN213318769U - Power assisting device of tightening tool - Google Patents
Power assisting device of tightening tool Download PDFInfo
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- CN213318769U CN213318769U CN202021843046.7U CN202021843046U CN213318769U CN 213318769 U CN213318769 U CN 213318769U CN 202021843046 U CN202021843046 U CN 202021843046U CN 213318769 U CN213318769 U CN 213318769U
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Abstract
The utility model belongs to the technical field of the automobile manufacturing, a screw up booster unit of instrument is related to. The movable trolley and the horizontal position adjusting mechanism move to enable the tightening tool mounted on the power assisting mechanism to smoothly align to the bolt to be tightened, the power assisting mechanism in reverse design can provide power assistance for the electric tightening tool when the large-torque bolt is tightened at the bottom of the vehicle body, and meanwhile the problem that the counter-force arm is difficult to design in the tool tightening process is solved. The screwing device is suitable for an upward screwing process on an automobile chassis.
Description
Technical Field
The utility model belongs to the technical field of the automobile manufacturing, a screw up booster unit of instrument is specifically disclosed.
Background
With the continuous development of automation, intellectualization and digitalization in the field of automobile manufacturing, the electric/pneumatic tightening tool is more and more widely applied to automobile assembly, has the advantages of low noise, high tightening precision, easiness in acquisition and storage of tightening data and the like, and is popular with users. However, there are some problems in the application process of the tightening tool, for example, when the chassis of the vehicle is assembled, the bolt tightening part is located under the vehicle body, the interference between the common cantilever type power assisting mechanism or the hanging type power assisting mechanism and the vehicle body can not reach the bottom of the vehicle body, the weight of the tightening tool for large torque bolt tightening (the torque is usually over 600 Nm) is about 7Kg, and the weight of the reaction arm is added, so that the whole tool is heavy, and the operation of lifting the tightening tool is very difficult; meanwhile, the design of the reaction arm is limited by the shape of the part and the space around the part, and other ways for overcoming the reaction force of the tightening tool are required when the bolt group on the part or the outline of the part or the nearby part cannot be used.
The prior power-assisted mode and the counter-force arm mode of the large-torque tightening tool generally overcome counter-force and provide power assistance by manufacturing a cantilever type or hanging type mechanical device by utilizing a production line steel structure on two sides of a vehicle body, for example, the Chinese utility model patent with the publication number of CN202571774U discloses a counter-force arm device of an electric wrench, which comprises a fixed support, wherein a transverse support arm is hinged on the fixed support, an inclined support frame which is driven by a driving cylinder to adjust the angle is hinged on the transverse support arm, the end part of the inclined support arm is fixedly connected with a connecting support arm, and the end part of the connecting support arm is provided with a clamping seat; the inclined support frame consists of two connecting rods which are arranged in parallel, the end parts of the two connecting rods are respectively hinged on the transverse support arm and the connecting support arm, and a piston rod of the driving cylinder is hinged on one of the connecting rods; the end part of the connecting support arm is hinged with a rotating seat and a positioning bolt for limiting the rotation of the rotating seat, and the clamping seat is fixedly arranged on the rotating seat through a connecting rod; the fixing support is provided with a plurality of vertical parallel through holes and is connected with a fixing seat through a fixing bolt which is arranged in the through holes in a penetrating way, and the end part of the transverse supporting arm is hinged on the fixing seat. The device is not only complex in structure, but also cannot be used for screwing the bolt upwards from the bottom of the vehicle, so that the device is not suitable for screwing the bolt at the bottom of the vehicle body.
SUMMERY OF THE UTILITY MODEL
For the technical problem who lists in solving the background art, the utility model provides a power assisting device of screwing up instrument. The specific technical scheme is as follows:
a power assisting device of a tightening tool, which comprises a movable trolley, a horizontal position adjusting mechanism and a power assisting mechanism, the power-assisted mechanism is fixedly arranged on the horizontal position adjusting mechanism, the horizontal position adjusting mechanism is arranged on the movable trolley, can horizontally move in the area limited by the upper surface of the movable trolley, the power assisting mechanism comprises a supporting seat, a tightening tool fixing frame, a fixed pulley and a counterweight, the supporting seat comprises a motion guide mechanism and an assembling plate fixedly connected to the top of the guide mechanism, and is vertically arranged on the upper surface of the horizontal position adjusting mechanism, the fixed pulley is hung on the assembling plate, the tightening tool fixing frame and the balance weight are respectively fixed with two ends of a steel wire rope on the fixed pulley, the tightening tool fixing frame can upwards support a tightening tool to tightly press a bolt to be tightened in a free state, the movement guide mechanism can limit the tightening tool fixing frame to move only in the vertical direction.
Preferably, the movable trolley comprises a seat mounting seat provided with a seat, a horizontal adjusting mechanism mounting seat and a plurality of universal wheels, the universal wheels are respectively mounted at the bottoms of the seat mounting seat and the horizontal adjusting mechanism mounting seat, and the seat mounting seat and the horizontal adjusting mechanism mounting seat are detachably connected. When the space is enough, the seat mounting seat and the horizontal adjusting mechanism mounting seat can be connected together, an operator can sit on the chair to rub the adjusting position with feet to a large extent, when the space is limited, the seat mounting seat and the horizontal adjusting mechanism mounting seat can be separated, and the position of the horizontal adjusting mechanism mounting seat is independently adjusted to realize the alignment of a screwing tool.
Preferably, for the needs of local fine setting, horizontal position adjustment mechanism mount pad upper surface is fixed with a plurality of vertical ascending positioning stud and ball mount pad, horizontal position adjustment mechanism includes the unanimous ball of a plurality of specifications and fixed plate, through the fixed plate is connected with assist drive device, the ball is arranged in the ball mount pad, the fixed plate level is arranged in on the ball, the fixed plate edge is opened there is the U-shaped groove, the U-shaped groove opening is outside, positioning stud embedding the U-shaped inslot can inject the moving range of fixed plate in the horizontal plane.
Preferably, in order to ensure that the tightening tool vertically compresses the bolt upwards, the motion guide mechanism comprises a guide post, the lower end of the guide post is provided with step threads, the guide post is vertically fixed on the fixing plate through a nut, and the guide post is fixed with a limit position.
Preferably, the guide posts are cylindrical and are provided with two guide posts, the two guide posts are parallel to each other and have the same outer diameter, the upper end and the lower end of each guide post are respectively fixed with the limit, and the tightening tool fixing frame moves between the limits of the upper end and the lower end. The design can lead the guide column to be stressed in a balanced way, and stably absorbs counter moment generated by locking.
Compared with the prior art, the utility model discloses simple structure, the space adjustment configuration according to the assembly scene that the components of a whole that can function independently design can be more nimble can provide the helping hand for electronic tightening tool when the automobile body bottom carries out the tightening of big moment of torsion bolt, has also solved the problem that the instrument was screwed up in-process counter-force arm design difficulty simultaneously, is applicable to and carries out the process of upwards screwing up on vehicle chassis.
Drawings
FIG. 1 is a perspective view of a power assisting device of a tightening tool according to an embodiment of the present invention;
FIG. 2 shows a schematic view of a seat installation in an embodiment of the invention;
FIG. 3 is a view showing a configuration of the seat mounting base and the leveling mechanism mounting base when they are separated from each other in the embodiment of the present invention;
FIG. 4 is a view showing a structure of a booster mechanism according to an embodiment of the present invention;
in the figure: 1. a movable trolley; 2. a horizontal adjustment mechanism; 3. a power-assisted mechanism;
1-1, a seat mounting seat; 1-2, a seat; 1-3, connecting plates; 1-4, universal wheels; 1-5, universal wheels with brakes; 2-1, mounting a horizontal adjusting mechanism; 2-2, a ball mounting seat; 2-3, rolling balls; 2-4, fixing plates; 2-5, positioning a stud; 2-6, connecting the flitch; 3-1, mounting a bracket; 3-2, connecting a bracket; 3-3 linear bearings; 3-4, a guide post; 3-5, upper limit; 3-6, lower limiting; 3-7, top beam; 3-8, mounting a bracket by a fixed pulley; 3-9, a fixed pulley; 3-10 parts of steel wire rope; 3-11, a weight plate; 3-12, a balancing weight;
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described below with reference to the accompanying drawings and specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. All other embodiments obtained by a person skilled in the art based on this embodiment without any creative effort belong to the protection scope of the present invention.
Referring to fig. 1 to 2, frames of a seat mounting base 1-1 and a horizontal adjusting mechanism mounting base 2-1 are respectively manufactured, a seat 1-2 and two connecting plates 1-3 are arranged on the seat mounting seat 1-1, the two connecting plates 1-3 are respectively fixed at two corners of the lower part of the front end mounting seat of the seat 1-2, universal wheels 1-4 and universal wheels with brakes 1-5 are arranged at the bottoms of the seat mounting seat 1-1 and the horizontal adjusting mechanism mounting seat 2-1, two connecting flitch plates 2-6 are arranged on the horizontal adjusting mechanism mounting seat 2-1 corresponding to the connecting plate 1-3, and the horizontal mechanism mounting seat 2-1 and the seat mounting seat 1-1 can be connected into a whole through the connecting flitch plates 2-6 and the connecting plate 1-3 by bolts. The universal wheels 1-4 and the universal wheels 1-5 with brakes are used for quickly adjusting the position of the whole power assisting device. The seat mounting seat 1-1, the horizontal adjusting mechanism mounting seat 2-1, the seat 1-2, the connecting plate 1-3, the connecting flitch 2-6, the universal wheel 1-4 and the universal wheel with a brake 1-5 are assembled together to form the movable trolley 1.
Referring to fig. 3, 6 ball mounting seats 2-2 are arranged on the table top of the horizontal adjusting mechanism mounting seat 2-1 and used for fixing balls, and the ball mounting seats 2-2 are fixed on the body 2-1 through bolts; the ball 2-3 is of a metal spherical structure, is smeared with lubricating oil and can freely rotate in the ball mounting seat 2-2; the fixing plate 2-4 is used for connecting a guide post 3-4 on the power-assisted mechanism 3, the fixing plate is horizontally placed on the ball 2-3, a waist-shaped groove is formed in the middle of each of two ends of the fixing plate 2-4, the size of the waist-shaped groove is larger than the diameter of the stud of the positioning stud 2-5, so that the fixing plate 2-4 can move among the 2 positioning studs 2-5, the power-assisted mechanism 3 can have a certain adjustment amount in the horizontal direction, and an electric tool can conveniently align the studs through fine adjustment; the positioning stud 2-5 is a stepped stud, the lower end of the stud is a threaded part, the threaded part is fixed on the horizontal adjusting mechanism mounting seat 2-1 through a nut and used for limiting the movement of the fixing plate 2-4 in the horizontal direction, and the top end of the stud is provided with a disc-shaped structure and used for preventing the fixing plate 2-4 from overturning; the ball mounting seat 2-2, the ball 2-3, the fixing plate 2-4 and the positioning stud 2-5 are assembled together to form the horizontal adjusting mechanism 2.
As shown in figure 4, the power assisting mechanism 3 is composed of a tightening tool mounting support 3-1, a connecting support 3-2, a linear sliding bearing 3-3, a guide column 3-4, an upper limit 3-5, a lower limit 3-6, a top beam 3-7, a pulley mounting support 3-8, a pulley 3-9, a steel wire rope 3-10, a counterweight plate 3-11 and a counterweight block 3-12. The tightening tool mounting bracket 3-1 is L-shaped with two perpendicular sides, one side is used for connecting and fixing the tightening tool, the other side is vertically mounted on the connecting bracket 3-2, the mounting surface is provided with an annular groove, and the angle of the tightening tool can be adjusted through the relative movement of the annular groove and a pin shaft embedded in the annular groove; the connecting bracket 3-2 is used for connecting the tightening tool mounting bracket 3-1, the linear sliding bearing 3-3 and the steel wire rope 3-10; the linear sliding bearing 3-3 is a flange type linear sliding bearing and is connected with the connecting support 3-2 through a flange, and the linear sliding bearing 3-3 can slide on the guide column 3-4; the lower end of the guide column 3-4 is provided with a step thread and is vertically fixed on a fixing plate 2-4 of the horizontal position adjusting mechanism 2 through a nut; the upper limit 3-5 and the lower limit 3-6 are upper and lower limits of the linear sliding bearing 3-3 and are sleeved and fixed on the guide column 3-4; the top beam 3-7 is horizontally arranged at the top of the guide column 3-4 to fix 2 guide columns 3-4 together; the pulley mounting bracket 3-8 is fixed on the top beam 3-7; the pulleys 3-9 are V-shaped groove fixed pulleys and are fixed on the pulley mounting brackets 3-8, and the steel wire ropes 3-10 can slide in the V-shaped grooves of the pulleys 3-9; one end of a steel wire rope 3-10 is connected to the connecting support 3-2, and the other end of the steel wire rope is connected to a balancing weight 3-12; the counterweight plates 3-11 are placed on the counterweight blocks 3-12 and provide counterweight together with the counterweight blocks 3-12, so that the boosting mechanism 3 keeps balance.
The utility model discloses when putting into operation, in the great assembly place in space, can even be as an organic whole seat mount pad 1-1, horizontal adjustment mechanism mount pad 2-1, the people sits and operates on seat 1-2, has adjusted the position, the angle of screwing up the instrument, confirms the number of counterweight plate according to the weight of screwing up the instrument, makes total counter weight and screws up the instrument balanced mutually, can accomplish upwards screws up the process. In an assembly place with a narrow space, the seat mounting seat 1-1 and the horizontal adjusting mechanism mounting seat 2-1 are disassembled, the horizontal adjusting mechanism mounting seat 2-1 is independently arranged at the bottom of the vehicle, and an operator can squat down to complete the upward screwing process.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a booster unit of tightening tool, includes movable trolley, horizontal position adjustment mechanism, assist drive device fixed mounting be in on the horizontal position adjustment mechanism, horizontal position adjustment mechanism install in on the movable trolley, can the regional horizontal migration that interior horizontal migration of upper surface of movable trolley injectd, characterized in that: the boosting mechanism comprises a supporting seat, a tightening tool fixing frame, a fixed pulley and a balance weight, wherein the supporting seat comprises a motion guiding mechanism and a balance weight, the motion guiding mechanism is fixedly connected to an assembling plate at the top of the motion guiding mechanism, the horizontal position of the assembling plate is vertically arranged on the upper surface of a horizontal position adjusting mechanism, the fixed pulley is installed on the assembling plate in a suspended mode, the tightening tool fixing frame and the balance weight are respectively fixed to two ends of a steel wire rope on the fixed pulley, the tightening tool fixing frame can upwards support a tightening tool to compress a bolt to be tightened, and the motion guiding mechanism can limit the tightening tool fixing frame to move only in the vertical direction.
2. A power assist device for a tightening tool as defined in claim 1, wherein: the movable trolley comprises a seat mounting seat, a horizontal adjusting mechanism mounting seat and a plurality of universal wheels, wherein the seat mounting seat is provided with a seat, the plurality of universal wheels are respectively mounted at the bottoms of the seat mounting seat and the horizontal adjusting mechanism mounting seat, and the seat mounting seat and the horizontal adjusting mechanism mounting seat are detachably connected.
3. A power assist device for a tightening tool according to claim 2, wherein: horizontal position adjustment mechanism mount pad upper surface is fixed with a plurality of vertical ascending positioning stud and ball mount pad, horizontal position adjustment mechanism includes the unanimous ball of a plurality of specifications and fixed plate, through the fixed plate with assist drive device connects, the ball is arranged in the ball mount pad, the fixed plate level is arranged in on the ball, the fixed plate edge is opened there is the U-shaped groove, the U-shaped groove opening is outside, positioning stud embedding the U-shaped inslot can inject the home range of fixed plate in the horizontal plane.
4. A power assist device for a tightening tool according to claim 3, wherein: the motion guide mechanism comprises a guide post, the lower end of the guide post is provided with step threads, the guide post is vertically fixed on the fixing plate through a nut, and the guide post is fixed with a limit position.
5. A power assist device for a tightening tool as defined in claim 4, wherein: the guide posts are cylindrical and are two, the two guide posts are parallel to each other, the outer diameters of the two guide posts are consistent, the upper end and the lower end of each guide post are respectively fixed with the limit, and the tightening tool fixing frame moves between the limit of the upper end and the limit of the lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021843046.7U CN213318769U (en) | 2020-08-28 | 2020-08-28 | Power assisting device of tightening tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021843046.7U CN213318769U (en) | 2020-08-28 | 2020-08-28 | Power assisting device of tightening tool |
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| Publication Number | Publication Date |
|---|---|
| CN213318769U true CN213318769U (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021843046.7U Active CN213318769U (en) | 2020-08-28 | 2020-08-28 | Power assisting device of tightening tool |
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| Country | Link |
|---|---|
| CN (1) | CN213318769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115055954A (en) * | 2022-07-07 | 2022-09-16 | 山东鸿成达机电装备有限公司 | Coupler supporting plate bolt tightening device and using method |
-
2020
- 2020-08-28 CN CN202021843046.7U patent/CN213318769U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115055954A (en) * | 2022-07-07 | 2022-09-16 | 山东鸿成达机电装备有限公司 | Coupler supporting plate bolt tightening device and using method |
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