CN219444927U - Universal force-aid arm for electric spanner - Google Patents

Abstract

In order to solve the problems that the prior art electric wrench power assisting arm cannot be applied to bolt tightening of a plurality of planes and cannot meet the requirements of man-machine engineering and the like, the utility model provides an electric wrench universal power assisting arm which is installed in a guide rail above an assembly station through a roller assembly, a telescopic tube is connected to the lower end of the roller assembly, and an electric wrench is connected to the lower end of the telescopic tube; the telescopic sleeve comprises an inner sleeve and an outer sleeve, and the outer diameter of the inner sleeve is matched with the inner diameter of the outer sleeve; the upper end of the outer sleeve is connected with the roller assembly through a ball head mechanism; the lower end of the inner sleeve is connected with the two-way power assisting mechanism through the pin hole mechanism; the bidirectional power assisting mechanism comprises a connecting column II, a power assisting arm and a bearing. The universal power assisting arm of the electric wrench has the beneficial technical effects that the universal power assisting arm can be applied to bolt tightening of multiple planes, and meets the requirements of man-machine engineering.

Description

Universal force-aid arm for electric spanner

Technical Field

The utility model relates to a car assembly tool technology, in particular to a universal force assisting arm of an electric wrench.

Background

A large number of various special tools are used on the car assembly line, wherein the electric wrench can be said to be a relatively common and widely used tool. According to the ergonomic requirement, when the bolt with the torque exceeding 55 N.M is screwed, a force assisting arm is added on the electric wrench to increase the torque of the electric wrench. For this reason, electric wrench power arms are mostly provided at the assembly stations of the car assembly line. Because the connecting structure of the power assisting arm of the electric wrench in the prior art can only move in one plane, the torque of the electric wrench can only be increased for the screwing process of the bolt in one plane. However, the operation space of the assembly station of the car assembly line is narrow, the number of bolts to be screwed is large, and most of the bolts are not on the same plane. Obviously, the power assisting arm of the electric wrench in the prior art has the problems that the power assisting arm cannot be applied to bolt tightening of a plurality of planes, and the requirements of man-machine engineering cannot be met.

Disclosure of Invention

In order to solve the problems that the prior art electric wrench force-aid arm cannot be applied to bolt tightening of a plurality of planes and cannot meet the requirements of man-machine engineering, the utility model provides an electric wrench universal force-aid arm.

The universal power assisting arm of the electric wrench is arranged in a guide rail above an assembly station through the roller assembly, the lower end of the roller assembly is connected with a telescopic tube, and the lower end of the telescopic tube is connected with the electric wrench; the electric wrench is L-shaped, wherein the short side of the L-shape is a wrench head, and the long side of the L-shape is a handle; the telescopic sleeve comprises an inner sleeve and an outer sleeve, and the outer diameter of the inner sleeve is matched with the inner diameter of the outer sleeve; the device is characterized in that the upper end of the outer sleeve is connected with the roller assembly through a ball head mechanism; the lower end of the inner sleeve is connected with the two-way power assisting mechanism through the pin hole mechanism; the ball head mechanism comprises a ball head, a spherical anchor ear and a connecting column I; the ball head is fixedly connected to the center of the bottom of the roller bracket; the spherical anchor ear is composed of two hemispherical cavities, and support plates for splicing the two hemispherical cavities into a sphere are respectively arranged on two sides of the two hemispherical cavities in an extending mode; the support plate is provided with a bolt hole; the connecting column I is fixedly connected to the center of the bottom of the spherical hoop, and a pin hole I matched with a radial through hole at the upper end of the outer sleeve is formed in the radial direction of the connecting column I; the bidirectional power assisting mechanism comprises a connecting column II, a power assisting arm and a bearing; the upper part of the connecting column II is a cylinder, and the lower part of the connecting column II is a cube; a pin hole II matched with a radial through hole at the lower end of the inner sleeve is formed in the radial direction of the cylinder at the upper part of the connecting column II, and a rectangular opening into which the bearing annular connecting plate is inserted is formed in the bottom of the cube at the lower part of the connecting column II; a pin hole III matched with the through hole of the annular connecting plate with the bearing is arranged transversely in the rectangular opening; the power assisting arm is of a door-shaped structure, semicircular forks with downward openings are arranged at the lower ends of two supporting legs of the door-shaped power assisting arm, and the diameter of each semicircular fork is more than 2mm larger than that of a handle of the electric wrench; the power assisting arm is fixed on the inner side of a rectangular opening of the cube at the lower part of the connecting column II through the middle part of the portal beam; the bearing is sleeved in the middle of the handle of the electric wrench, an annular connecting plate is fixedly connected to the outer circle of the bearing, and the axis of the annular connecting plate is perpendicular to the axis of the bearing; during assembly, the two hemispherical cavities of the spherical anchor ear are sleeved on the ball head, and the two hemispherical cavities are spliced into a sphere through the support plates at the two sides of the hemispherical cavities and sleeved on the outer side of the ball head; the upper end of the outer sleeve is sleeved outside the connecting column I, and pin shaft connection is realized through a radial through hole at the upper end of the outer sleeve and the pin hole I; the lower end of the inner sleeve is sleeved outside a cylinder at the upper part of the connecting column II, and pin shaft connection is realized through a radial through hole at the lower end of the inner sleeve and the pin hole II; inserting an annular connecting plate sleeved on the outer circle of a bearing on the electric wrench into a rectangular opening of a cube at the lower part of the connecting column II, and realizing pin shaft connection through a through hole of the annular connecting plate and a pin hole III; at this time, the semicircular forks at the two ends of the power assisting arm are just buckled above the handle of the electric wrench.

Further, the bearing is a deep groove ball bearing.

The universal power assisting arm of the electric wrench has the beneficial technical effects that the universal power assisting arm can be applied to bolt tightening of multiple planes, and meets the requirements of man-machine engineering.

Drawings

FIG. 1 is a three-dimensional schematic view of the universal power assisting arm of the electric wrench;

FIG. 2 is an exploded three-dimensional schematic view of the universal power assisting arm of the electric wrench of the present utility model;

FIG. 3 is a three-dimensional exploded view of the ball mechanism of the present utility model;

FIG. 4 is a three-dimensional schematic view of a spherical hoop of the present utility model;

FIG. 5 is an exploded three-dimensional schematic view of the bi-directional booster mechanism of the present utility model;

fig. 6 is a three-dimensional schematic of a bearing of the present utility model.

The universal power assisting arm of the electric wrench is further described below with reference to the accompanying drawings and the detailed description.

Detailed Description

Fig. 1 is a three-dimensional schematic diagram of a universal power assisting arm of an electric wrench, fig. 2 is an exploded three-dimensional schematic diagram of the universal power assisting arm of the electric wrench, fig. 3 is a three-dimensional exploded schematic diagram of a ball mechanism, fig. 4 is a three-dimensional schematic diagram of a ball hoop, fig. 5 is an exploded three-dimensional schematic diagram of a bidirectional power assisting mechanism, and fig. 6 is a three-dimensional schematic diagram of a bearing; in the way, 1 is a roller assembly, 1-1 is a roller, 1-2 is a bracket, 1-3 is a connecting column I, 1-4 is a ball head, 1-5 is a spherical hoop, 2 is a telescopic sleeve, 2-1 is an outer sleeve, 2-2 is an inner sleeve, 3 is a bidirectional power assisting mechanism, 3-1 is a connecting column II, 3-2 is a power assisting arm, 3-3 is a bearing, and A is an electric spanner. As can be seen from the figure, the universal power assisting arm of the electric wrench is arranged in a guide rail above an assembly station through a roller assembly 1, the lower end of the roller assembly is connected with a telescopic tube 2, and the lower end of the telescopic tube is connected with an electric wrench A; the electric wrench A is L-shaped, the short side of the L-shaped electric wrench A is a wrench head, and the long side of the L-shaped electric wrench A is a handle; the telescopic sleeve 2 comprises an inner sleeve 2-2 and an outer sleeve 2-1, and the outer diameter of the inner sleeve is matched with the inner diameter of the outer sleeve; the device is characterized in that the upper end of the outer sleeve 2-1 is connected with the roller assembly 1 through a ball head mechanism; the lower end of the inner sleeve 2-2 is connected with a bidirectional booster mechanism 3 through a pin hole mechanism; the ball head mechanism comprises a ball head 1-4, a spherical hoop 1-5 and a connecting column I1-3; the ball head 1-4 is fixedly connected to the center of the bottom of the roller bracket 1-2; the spherical anchor ear 1-5 is composed of two hemispherical cavities, and support plates for splicing the two hemispherical cavities into a sphere are respectively arranged on two sides of the two hemispherical cavities in an extending manner; the support plate is provided with a bolt hole; the connecting column I1-3 is fixedly connected to the center of the bottom of the spherical hoop, and a pin hole I matched with a radial through hole at the upper end of the outer sleeve is formed in the radial direction of the connecting column I; the bidirectional booster mechanism 3 comprises a connecting column II 3-1, a booster arm 3-2 and a bearing 3-3; the upper part of the connecting column II 3-1 is a cylinder, and the lower part is a cube; a pin hole II matched with a radial through hole at the lower end of the inner sleeve is formed in the radial direction of the cylinder at the upper part of the connecting column II, and a rectangular opening into which the bearing annular connecting plate is inserted is formed in the bottom of the cube at the lower part of the connecting column II; a pin hole III matched with the through hole of the annular connecting plate with the bearing is arranged transversely in the rectangular opening; the power assisting arm 3-2 is of a door-shaped structure, semicircular forks with downward openings are arranged at the lower ends of two supporting legs of the door-shaped power assisting arm, and the diameter of each semicircular fork is more than 2mm larger than that of a handle of the electric wrench; the power assisting arm is fixed on the inner side of a rectangular opening of the cube at the lower part of the connecting column II through the middle part of the portal beam; the bearing 3-3 is sleeved in the middle of the handle of the electric wrench, an annular connecting plate is fixedly connected to the outer circle of the bearing, and the axis of the annular connecting plate is perpendicular to the axis of the bearing; during assembly, the two hemispherical cavities of the spherical anchor ear are sleeved on the ball head, and the two hemispherical cavities are spliced into a sphere through the support plates at the two sides of the hemispherical cavities and sleeved on the outer side of the ball head; the upper end of the outer sleeve is sleeved outside the connecting column I, and pin shaft connection is realized through a radial through hole at the upper end of the outer sleeve and the pin hole I; the lower end of the inner sleeve is sleeved outside a cylinder at the upper part of the connecting column II, and pin shaft connection is realized through a radial through hole at the lower end of the inner sleeve and the pin hole II; inserting an annular connecting plate sleeved on the outer circle of a bearing on the electric wrench into a rectangular opening of a cube at the lower part of the connecting column II, and realizing pin shaft connection through a through hole of the annular connecting plate and a pin hole III; at this time, the semicircular forks at the two ends of the power assisting arm are just buckled above the handle of the electric wrench. The universal power-assisted arm of the electric wrench is connected with the roller assembly through the ball head mechanism, so that the electric wrench can move randomly in all directions; the electric wrench is connected with the telescopic sleeve through the bearing, so that 360-degree rotation of the electric wrench along the axis of the electric wrench is realized; and the bearing is connected with the telescopic sleeve through the pin shaft mechanism, so that the fine adjustment of the axial direction of the electric wrench is realized. Obviously, through the cooperation of bulb mechanism and telescopic tube, can aim at the bolt on a plurality of planes with the spanner's of electric spanner, through the rotation and the axial fine setting of electric spanner along self axis, can aim at the axis of spanner and bolt axis. Therefore, the universal booster arm of the electric wrench has the beneficial technical effects that the universal booster arm can be applied to bolt tightening of a plurality of planes, and meets the requirements of man-machine engineering

In order to enhance the carrying capacity of the electric wrench, as one of preferable schemes, the bearing is a deep groove ball bearing. Thus, the electric wrench can bear larger torque, and the bearing cannot be loosened or damaged.

Obviously. The universal power assisting arm of the electric wrench has the beneficial technical effects that the universal power assisting arm can be applied to bolt tightening of multiple planes, and meets the requirements of man-machine engineering.

Claims (2)

1. The universal power assisting arm of the electric wrench is arranged in a guide rail above an assembly station through a roller assembly, a telescopic tube is connected to the lower end of the roller assembly, and the electric wrench is connected to the lower end of the telescopic tube; the electric wrench is L-shaped, wherein the short side of the L-shape is a wrench head, and the long side of the L-shape is a handle; the telescopic sleeve comprises an inner sleeve and an outer sleeve, and the outer diameter of the inner sleeve is matched with the inner diameter of the outer sleeve; the device is characterized in that the upper end of the outer sleeve is connected with the roller assembly through a ball head mechanism; the lower end of the inner sleeve is connected with the two-way power assisting mechanism through the pin hole mechanism; the ball head mechanism comprises a ball head, a spherical anchor ear and a connecting column I; the ball head is fixedly connected to the center of the bottom of the roller bracket; the spherical anchor ear is composed of two hemispherical cavities, and support plates for splicing the two hemispherical cavities into a sphere are respectively arranged on two sides of the two hemispherical cavities in an extending mode; the support plate is provided with a bolt hole; the connecting column I is fixedly connected to the center of the bottom of the spherical hoop, and a pin hole I matched with a radial through hole at the upper end of the outer sleeve is formed in the radial direction of the connecting column I; the bidirectional power assisting mechanism comprises a connecting column II, a power assisting arm and a bearing; the upper part of the connecting column II is a cylinder, and the lower part of the connecting column II is a cube; a pin hole II matched with a radial through hole at the lower end of the inner sleeve is formed in the radial direction of the cylinder at the upper part of the connecting column II, and a rectangular opening into which the bearing annular connecting plate is inserted is formed in the bottom of the cube at the lower part of the connecting column II; a pin hole III matched with the through hole of the annular connecting plate with the bearing is arranged transversely in the rectangular opening; the power assisting arm is of a door-shaped structure, semicircular forks with downward openings are arranged at the lower ends of two supporting legs of the door-shaped power assisting arm, and the diameter of each semicircular fork is more than 2mm larger than that of a handle of the electric wrench; the power assisting arm is fixed on the inner side of a rectangular opening of the cube at the lower part of the connecting column II through the middle part of the portal beam; the bearing is sleeved in the middle of the handle of the electric wrench, an annular connecting plate is fixedly connected to the outer circle of the bearing, and the axis of the annular connecting plate is perpendicular to the axis of the bearing; during assembly, the two hemispherical cavities of the spherical anchor ear are sleeved on the ball head, and the two hemispherical cavities are spliced into a sphere through the support plates at the two sides of the hemispherical cavities and sleeved on the outer side of the ball head; the upper end of the outer sleeve is sleeved outside the connecting column I, and pin shaft connection is realized through a radial through hole at the upper end of the outer sleeve and the pin hole I; the lower end of the inner sleeve is sleeved outside a cylinder at the upper part of the connecting column II, and pin shaft connection is realized through a radial through hole at the lower end of the inner sleeve and the pin hole II; inserting an annular connecting plate sleeved on the outer circle of a bearing on the electric wrench into a rectangular opening of a cube at the lower part of the connecting column II, and realizing pin shaft connection through a through hole of the annular connecting plate and a pin hole III; at this time, the semicircular forks at the two ends of the power assisting arm are just buckled above the handle of the electric wrench.

2. The power wrench universal power assist arm according to claim 1, wherein said bearing is a deep groove ball bearing.