CN216990759U - Reaction arm tightening gun - Google Patents

Abstract

The utility model provides a reaction force arm tightening gun, which comprises a tightening gun body and a fixed support connected with the tightening gun body, wherein the fixed support is installed at the first end of a gun rack cantilever which is horizontally arranged, the gun rack cantilever is movably arranged on a gun rack upright post which is vertically arranged, a first counterweight body is movably arranged on the gun rack cantilever, a counterweight rod is arranged on one side of the gun rack upright post, the counterweight rod is fixedly connected with the gun rack upright post and is eccentric to a supporting point of the gun rack upright post, a second counterweight body is movably arranged on the counterweight rod, and the first counterweight body and the second counterweight body are both used for adjusting gravity center distribution. According to the utility model, by means of the arrangement of the first counterweight body on the gun rack cantilever and the second counterweight body on the counterweight rod, the gravity center and the moment distribution of the whole supporting structure can be conveniently and reliably adjusted, the deformation of the supporting structure is reduced, and the operation precision and the operation quality of screwing the gun are further improved.

Description

Reaction arm tightening gun

Technical Field

The utility model relates to the technical field of tightening guns, in particular to a reaction force arm tightening gun.

Background

A tightening gun is a power wrench type tool that is typically driven by a servo motor and is equipped with a torque sensor to detect torque, etc., and the servo motor forms a closed loop control. The phenomenon that when the prior manual tightening operation is relied on, the tightening torque and the acting force cannot be accurately controlled, so that the pressing force is too small, the bolt is likely to loosen due to vibration or cyclic load, the pressing force is too large, and the connecting components are likely to fracture and deform is overcome, the labor intensity of workers is reduced, quality accidents caused by fatigue operation of the workers are avoided, the product quality is improved, and the production cost is reduced.

In the process of screwing up the gun, the position precision of the gun has obvious influence on the assembly quality of bolts and the like, the screwing up gun in the prior art is usually directly arranged at the executing tail end of a mechanical arm and the like, and the action moment relative to a supporting point is generated by the self weight, the reaction force and the like during the operation of screwing up the gun, so that the whole supporting structure is deformed, the position deviation of the operation point of the screwing up gun is caused, and the operation precision is influenced.

It should be noted that the above background description is only for the convenience of clear and complete description of the technical solutions of the present application and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present application.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is: in view of the shortcomings in the background art, the tightening gun capable of reducing deformation of the supporting structure and improving precision and quality of tightening operation is provided.

In order to achieve the purpose, the utility model provides a reaction force arm tightening gun, which comprises a tightening gun body and a fixed support connected with the tightening gun body, wherein the fixed support is installed at a first end of a gun frame cantilever which is horizontally arranged, the gun frame cantilever is movably arranged on a gun frame upright post which is vertically arranged, a first counterweight body is movably arranged on the gun frame cantilever, a counterweight rod is distributed on one side of the gun frame upright post, the counterweight rod is fixedly connected with the gun frame upright post and is eccentric to a supporting point of the gun frame upright post, a second counterweight body is movably arranged on the counterweight rod, and the first counterweight body and the second counterweight body are both used for adjusting gravity center distribution.

Further, the first counterweight body is a counterweight block, and the counterweight block is driven by a first driving part at the second end of the gun rack cantilever.

Further, the first driving part is a first servo motor.

Furthermore, the two ends of the counterweight rod are connected with the two ends of the gun rack upright post through mounting holding blocks.

Furthermore, the second counterweight body is a counterweight clamp, and the counterweight clamp can be adjusted and fixed at the position of the counterweight rod.

Further, the counterweight clamp is provided with a plurality of counterweight clamps.

Further, the counterweight clamp is detachably connected with the counterweight rod through a bolt.

Furthermore, a gun rack moving block is movably arranged on the gun rack upright post and driven by a second driving part at the top end of the gun rack upright post, and the gun rack cantilever is fixedly connected with the gun rack moving block.

Further, the second driving part is a second servo motor.

The scheme of the utility model has the following beneficial effects:

according to the reaction force arm tightening gun, the gravity center and the moment distribution of the whole supporting structure can be conveniently and reliably adjusted by means of the arrangement of the first balance weight body on the gun frame cantilever and the second balance weight body on the balance weight rod, the deformation of the supporting structure is reduced, the uncontrollable deviation of a gun tightening operation point is reduced, and the operation precision and the operation quality of the tightening gun are further improved;

other advantages of the present invention will be described in detail in the detailed description that follows.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of a second counterweight of the present invention.

[ description of reference ]

1-screwing down the gun body; 2-fixing a support; 3-a gun rest cantilever; 4-a gun rack column; 5-a first counterweight; 6-a counterweight rod; 7-a second counterweight; 8-a first drive section; 9-mounting a holding block; 10-a frame moving block; 11-second drive section.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. 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. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, an embodiment of the present invention provides a reaction arm tightening gun, which includes a tightening gun body 1 and a fixing support 2 connected to the tightening gun body 1, wherein the tightening gun body 1 has a servo motor, a reducer, a torque sensor, and the like, and can automatically complete installation and removal of a bolt. The fixed support 2 is installed at the first end of the gun rack cantilever 3 horizontally arranged, and the gun rack cantilever 3 is movably arranged on the gun rack upright post 4 vertically arranged, so that the vertical position of the gun body 1 can be adjusted and screwed.

Because the tightening gun body 1 is positioned at the end part of the gun rack cantilever 3, and the supporting point is positioned at the bottom end of the gun rack upright post 4, the self weight, the reaction force and the like can generate the action moment relative to the supporting point when the tightening gun works, so that the whole supporting structure is deformed, the position deviation of the bottom end working point of the tightening gun body 1 is caused, and the working precision is influenced. Therefore, in this embodiment, the first weight 5 is movably disposed on the gun rack suspension arm 3, and the center of gravity of the whole gun rack suspension arm 3 can be adjusted by the first weight 5. Meanwhile, a balance weight rod 6 is arranged on one side of the gun rack upright post 4, the balance weight rod 6 is fixedly connected with the gun rack upright post 4 and is eccentric to a supporting point of the gun rack upright post 4, a second balance weight body 7 is movably arranged on the balance weight rod 6, and the second balance weight body 7 is relied to generate a moment relative to the supporting point, so that the deformation generated by the integral structure is reduced as much as possible, and the gun screwing operation precision is improved.

In this embodiment, the first weight body 5 is a weight block, and the weight block is driven by a first driving portion 8 at the second end of the gun rack cantilever 3. Preferably, the first driving portion 8 is a first servo motor, and the first servo motor drives a lead screw to rotate so as to drive the counterweight block to move, so as to accurately adjust the position of the counterweight block on the gun rack cantilever 3.

In this embodiment, the two ends of the weight lever 6 are fixedly connected with the two ends of the gun rack upright post 4 through the mounting clasping blocks 9. Meanwhile, as shown in fig. 2, the second counterweight body 7 is a counterweight clamp, which is adjustably fixed at the position of the counterweight rod 6 and detachably connected with the counterweight rod 6 through a bolt, so that the loading and unloading are more convenient.

Wherein, the counter weight presss from both sides and sets up a plurality ofly, and has the counter weight rotator of rotatable adjustment on the counter weight presss from both sides, makes its arm of force adjustable for the strong point through the rotation of counter weight rotator to finely tune such as whole focus, moment distribution more accurately.

In this embodiment, the rack upright post 4 is movably provided with a rack moving block 10, the rack moving block 10 is driven by a second driving part 11 at the top end of the rack upright post 4, and the rack cantilever 3 is fixedly connected with the rack moving block 10, so that the rack moving block can be driven by the second driving part 11 to move up and down.

In a preferred embodiment, the second driving unit 11 is a second servomotor, and the second servomotor drives the lead screw to rotate to drive the movement block 10 to move up and down.

Of course, in other embodiments, the first driving portion 8 and the second driving portion 11 may also be linear driving elements such as an electric push rod, and are not limited herein.

The reaction force arm tightening gun provided by the embodiment can conveniently and reliably adjust the gravity center and the moment distribution of the whole supporting structure, reduces the deformation of the supporting structure, reduces the uncontrollable deviation of a tightening gun operation point, and further improves the operation precision and the operation quality of the tightening gun.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (9)

1. The utility model provides a rifle is screwed up to reaction arm of force, including the tightening rifle body and with the fixing support who screws up the rifle body coupling, its characterized in that, fixing support installs the first end at the rack cantilever that the level was arranged, the activity of rack cantilever sets up on the vertical rack stand of arranging, the activity is provided with first counter weight body on the rack cantilever, the counterweight rod has been laid to one side of rack stand, the counterweight rod with rack stand fixed connection is eccentric simultaneously in the strong point of rack stand, the activity is provided with the second counter weight body on the counterweight rod, first counter weight body with the second counter weight body all is used for adjusting the focus and distributes.

2. The reaction arm tightening gun of claim 1, wherein the first weight is a weight block that is driven by a first drive at the second end of the gun carrier boom.

3. The reaction arm tightening gun of claim 2, wherein the first drive is a first servo motor.

4. The reaction arm tightening gun of claim 1, wherein the ends of the weight bar are connected to the ends of the frame post by mounting clasps.

5. The reaction arm tightening gun of claim 1, wherein the second weight body is a weight clip adjustably secured to a position of the weight rod.

6. The reaction arm tightening gun according to claim 5, wherein the weight clamp is provided in plurality.

7. The reaction arm tightening gun of claim 5, wherein the weight clamp is removably connected to the weight rod by a bolt.

8. The reaction arm tightening gun according to claim 1, wherein a gun rack moving block is movably disposed on the gun rack upright post, the gun rack moving block is driven by a second driving portion at the top end of the gun rack upright post, and the gun rack cantilever is fixedly connected with the gun rack moving block.

9. The reaction arm tightening gun of claim 8, wherein the second drive is a second servo motor.

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