CN210476126U

CN210476126U - Force arm mechanism for eliminating bolt tightening reaction force

Info

Publication number: CN210476126U
Application number: CN201921136644.8U
Authority: CN
Inventors: 王春伟
Original assignee: Changchun Fusheng Automobile Technology Research And Development Co ltd
Current assignee: Changchun Fusheng Li'er Automotive Seat System Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-05-08
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses an eliminate arm of force mechanism of bolt tightening reaction force, be fixed with the stopper including the slide rail end, the stopper below is the connecting block, connecting block and stopper hub connection, connecting block one end is fixed with the support, the support is connected with the center pin through deep groove ball bearing, center pin one end bolt fastening has electronic rifle mount pad of screwing up, the center pin other end is fixed with the reaction force and eliminates rotatory piece, the reaction force is eliminated rotatory piece and is opened all around there is spacing hole, the reaction force is eliminated rotatory piece below and has the locating piece of fixing on the support, the locating piece is opened porosely, the downthehole cooperation has rotatory plunger, rotatory plunger's the head that stretches out is higher than the locating piece upper surface to eliminate the spacing hole cooperation of rotatory piece with the reaction force. The limiting hole of the reaction force eliminating rotating block is matched with the extending head of the rotating plunger to eliminate the reaction force generated in the bolt tightening process.

Description

Force arm mechanism for eliminating bolt tightening reaction force

Technical Field

The utility model relates to a quick tightening device field of bolt, especially an eliminate arm of force mechanism of bolt tightening reaction force.

Background

The electric wrench is a wrench powered by a power supply or a battery, is a tool for screwing a high-strength bolt, and is also called a high-strength bolt gun. Mainly comprises an impact wrench, a torsional shear wrench, a fixed torque wrench, a corner wrench and an angular wrench. And can produce huge reaction force at the quick tightening process of bolt to influence and screw up efficiency, also hurt operating personnel easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the not enough of prior art, provide an eliminate arm of force mechanism of bolt tightening reaction force.

In order to realize the purpose, the following technical scheme is provided:

an arm of force mechanism for eliminating bolt tightening reaction force comprises two X-axis tracks which are arranged in parallel, a Y-axis track with two ends respectively fixed on the two parallel X-axis tracks, and a Z-axis track which is connected with the Y-axis track in a sliding manner, wherein the Z-axis track is provided with a sliding rail which slides along the vertical direction, a limiting block is fixed at the tail end of the sliding rail, a connecting block is arranged below the limiting block and is connected with the limiting block in a shaft manner, a support is fixed at one end of the connecting block, the support is connected with a central shaft through a deep groove ball bearing, an electric tightening gun mounting seat is fixed at one end of the central shaft through a bolt, a reaction force eliminating rotating block is fixed at the other end of the central shaft, limiting holes are formed around the reaction force eliminating rotating block, a positioning block fixed on the support is arranged below the reaction force eliminating rotating block, a hole is formed, the extending head of the rotary plunger is higher than the upper surface of the positioning block and is matched with the limiting hole of the reaction force eliminating rotary block.

Preferably, the support bottom is fixed with the diaphragm, be fixed with the angle stopper on the diaphragm, the electronic rifle mount pad of screwing up of angle stopper restriction changes the definite angle to provide when screwing up and lean on the power.

Preferably, the reaction force eliminating rotating block is of a split structure and comprises a first semicircular block and a second semicircular block, and the first semicircular block is connected with the second semicircular block through a bolt.

Preferably, a fixing ring is fixed on the slide rail of the Z-axis rail, the fixing ring is locked with a buckle of a balancer to assist the slide rail to slide, and the balancer is fixed in parallel with the Z-axis rail.

The utility model has the advantages that:

1. the limiting hole of the reaction force eliminating rotating block is matched with the extending head of the rotating plunger to eliminate the reaction force generated in the bolt tightening process.

2. The 360-degree screwing position is realized by connecting the X-axis track, the Y-axis track and the Z-axis track with the limiting block shaft in a matched mode.

3. The electric tightening gun mounting seat can be matched with any electric tightening gun, and the adaptability is strong.

Drawings

FIG. 1 is a schematic view of the entire moment arm mechanism for eliminating the reaction force of bolt tightening;

FIG. 2 is a cross-sectional view of the reaction force counteracting rotation block and the rotary plunger;

fig. 3 is an exploded view of the reaction force cancellation rotary block and rotary plunger.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific 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.

In addition, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, 2 and 3, the force arm mechanism for eliminating the reactive force of bolt tightening comprises two parallel X-axis rails 10, a Y-axis rail 20 with two ends fixed on the two parallel X-axis rails 10, and a Z-axis rail 30 slidably connected with the Y-axis rail 20, wherein the Z-axis rail 30 is provided with a slide rail 31 sliding along the vertical direction, a limiting block 34 is fixed at the end of the slide rail 31, a connecting block 40 is arranged below the limiting block 34, the connecting block 40 is connected with the limiting block 34 by a shaft, a bracket 60 is fixed at one end of the connecting block 40, the bracket 60 is connected with a central shaft 67 through a deep groove ball bearing 601, an electric tightening gun mounting seat 61 is fixed at one end of the central shaft 67 by a bolt, a reactive force eliminating rotating block 66 is fixed at the other end of the central shaft 67, limiting holes are arranged around the reactive force eliminating rotating block 66, a positioning block 64 fixed on the bracket 60 is arranged below the reactive force eliminating rotating block 66, the positioning block 64 is provided with a hole, the hole is matched with a rotary plunger 65, and an extending head 650 of the rotary plunger 65 is higher than the upper surface of the positioning block 64 and is matched with a limiting hole of the reaction force eliminating rotary block 66.

A transverse plate 63 is fixed at the bottom of the bracket, an angle limiting block 62 is fixed on the transverse plate 63, and the angle limiting block 62 limits the rotation angle of the electric tightening gun mounting seat 61 and provides a leaning force when in tightening.

The reaction force eliminating rotation block 66 as shown in fig. 3 has a split structure, and includes a first semicircular block 660 and a second semicircular block 661, wherein the first semicircular block 660 is connected to the second semicircular block 661 by a bolt.

Fixed ring 35 is fixed on the slide rail 31 of Z axle track 30, fixed ring 35 pins with detaining 33 of equalizer 32, and supplementary slide rail 31 slides, equalizer 32 is fixed parallel to Z axle track 30.

The working process is as follows:

fix electronic tightening gun on electronic tightening gun mount pad 61, according to the bolt tightening position, the arm of a gun of the electronic tightening gun of pulling comes the adjusting position, reaction force eliminates rotatory piece 66 and rotates along with it when rotating the arm of a gun, after confirming the position, pulling rotatory plunger 65, place the head 650 that stretches out of rotatory plunger 65 in suitable spacing downthehole, begin to screw up the bolt, under the cooperation of head 650 that stretches out and spacing hole, the reaction force of screwing up the process has been eliminated.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An arm of force mechanism for eliminating bolt tightening reaction force is characterized by comprising two X-axis tracks which are arranged in parallel, a Y-axis track with two ends respectively fixed on the two parallel X-axis tracks, and a Z-axis track which is connected with the Y-axis track in a sliding manner, wherein the Z-axis track is provided with a slide rail which slides along the vertical direction, a limiting block is fixed at the tail end of the slide rail, a connecting block is arranged below the limiting block and is connected with the limiting block in a shaft manner, a support is fixed at one end of the connecting block and is connected with a central shaft through a deep groove ball bearing, an electric tightening gun mounting seat is fixed at one end of the central shaft through a bolt, a reaction force eliminating rotating block is fixed at the other end of the central shaft, a limiting hole is arranged around the reaction force eliminating rotating block, a positioning block fixed on the support is arranged below the reaction force eliminating rotating block, the hole is matched with a rotary plunger, and the extending head of the rotary plunger is higher than the upper surface of the positioning block and is matched with the limiting hole of the reaction force eliminating rotary block.

2. The moment arm mechanism for eliminating the reactive force of bolt tightening as claimed in claim 1, wherein a cross plate is fixed to the bottom of the bracket, and an angle limiting block is fixed to the cross plate, and the angle limiting block limits the rotation angle of the electric tightening gun mounting seat and provides a leaning force during tightening.

3. The moment arm mechanism for eliminating the reactive force of bolt tightening according to claim 1, wherein the reactive force eliminating rotating block is a split structure and comprises a first semicircular block and a second semicircular block, and the first semicircular block is connected with the second semicircular block through a bolt.

4. The moment arm mechanism for eliminating the reaction force of bolt tightening as claimed in claim 1, wherein a fixing ring is fixed on the slide rail of the Z-axis rail, the fixing ring is locked with a buckle of a balancer to assist the slide rail to slide, and the balancer is fixed in parallel with the Z-axis rail.