CN215719990U - Connector for calibrating electric torque tool - Google Patents

Abstract

The utility model relates to the technical field of torque tool detection equipment, in particular to a connector for calibrating an electric torque tool, which consists of an upper part, a middle part and a lower part which are sequentially connected, wherein the upper part comprises a torsion bar, an upper handle and an upper clamping jaw, the torsion bar comprises an upper connecting part and a mounting rod, the middle part comprises a sleeve and a lower connecting part, the mounting rod is arranged in the sleeve and can rotate around the axis of the sleeve, the lower part comprises a lower handle and a lower clamping jaw, meshing transmission mechanisms are respectively arranged in the upper connecting part and the lower connecting part and are respectively used for connecting the upper handle with the upper clamping jaw and the lower handle with the lower clamping jaw, so that the upper handle or the lower handle can rotate around the axis of the upper handle or the lower handle to control the upper clamping jaw or the lower clamping jaw to open and close so as to match different male/female head sizes. The connector is convenient to use, accurate in positioning and high in flexibility, can meet the requirements of torsion tools and calibration instruments of different specifications, and can effectively solve the technical problems of complex installation and replacement, low calibration precision, low working efficiency and the like of the traditional connector.

Description

Connector for calibrating electric torque tool

Technical Field

The utility model relates to the technical field of torque tool detection equipment, in particular to a connector for calibrating an electric torque tool.

Background

In the assembly of a finished vehicle, bolts are often used to connect two or more components together to meet assembly process requirements. A power torque tool is a common bolt tightening tool capable of outputting and setting a torque. In order to ensure that the parts are not loosened and fall off in the whole running period of the vehicle, the control of the torque magnitude when the electric torque tool fastens the bolt is very important, and in addition, the requirements on the torque magnitude are different when parts with different purposes and different materials are fastened and connected by using the bolt. Accordingly, there are typically multiple models, specifications and torque sizes of electric torque tools available in a host factory to apply a specific torque value to a target in order for the target to meet the torque requirement. In order to ensure the accurate reliability of the torque value of the electric torque tool, the torque calibrator is required to be used for checking the torque value periodically to ensure the accuracy of the torque value. According to the regulation of the national standard JJF 1610-2017 electric and pneumatic torque plate calibration standard, the time interval of the test does not exceed half a year.

In the case of verifying the electric torque tool, a dedicated damping connector is usually provided for each specification of electric torque tool. At present, in order to meet the checking requirements of electric torque tools with different specifications, connectors with different specifications need to be equipped, so that the equipment cost is increased, a large space is also needed for keeping the connectors, a large amount of time is needed for replacing the matched connectors during detection or checking, and the service life of the calibration instrument is shortened by frequently replacing the connectors. In addition, after the check-up was accomplished, need change the torque tool into the spanner and reverse to loosen the connector, need change the connector according to the connection size dismouting of spanner again this moment, it is consuming time hard, seriously influence work efficiency. The condition need connect a plurality of connectors to reach suitable cooperation size for a bit, has not only increased the length of moment, and personnel perpendicular to working face operates when can't guaranteeing the check-up, and whether the connection between the multiunit connector is firm moreover, and the clearance size also can all exert an influence to the check-up result, and appears sliding easily when measuring, also falls easily during installation or dismantlement, causes spare part damage or torsion instrument damage even.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides the connector for calibrating the electric torque tool, which has the advantages of simple structure, convenience for use, accurate and firm positioning and high flexibility, can meet the requirements of openings of torque tools and calibration instruments with different specifications, simplifies the calibration process, can obviously improve the calibration work efficiency, and can effectively solve the technical problems that in the traditional electric torque tool calibration process, a plurality of different connectors need to be just replaced, the installation and replacement process is complicated, the work efficiency is low, the operation difficulty is increased, and the measurement error is large and the calibration precision is low due to the fact that a plurality of connectors with different specifications are connected at the same time.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

a connector for calibrating an electric torque tool comprises an upper part, a middle part and a lower part which are sequentially connected, wherein the upper part comprises a torsion bar, an upper handle and an upper clamping jaw, the torsion bar comprises an upper connecting part and a mounting rod arranged at the bottom end of the upper connecting part, the upper handle is arranged on the side surface of the upper connecting part, the upper clamping jaw is arranged at the top end of the upper connecting part, a meshing transmission mechanism is arranged inside the upper connecting part and used for connecting the upper handle and the upper clamping jaw, and the upper handle can rotate around the axis of the upper handle to control the upper clamping jaw to be opened and closed so as to be matched with different male/female head sizes;

the middle part is a columnar body and comprises a sleeve and a lower connecting part arranged at the bottom of the sleeve, the bottom end of the sleeve is closed, the top end of the sleeve is open, the sleeve is hollow, and the mounting rod is arranged in the sleeve and can rotate around the axis of the sleeve;

the lower part includes lower handle and lower clamping jaw, lower handle sets up the side of lower connecting portion, the clamping jaw sets up down the bottom of connecting portion, the inside of lower connecting portion sets up meshing drive mechanism and is used for connecting lower handle and lower clamping jaw, lower handle can be around self axle center rotation control lower clamping jaw opens and shuts to the public first/female head size of cooperation difference.

According to the technical scheme, the lower part of the lower handle is connected with the male head or female head calibration instrument, and the opening and closing degree of the lower clamping jaw is adjusted by rotating the lower handle around the lower handle in the vertical direction, so that the size of the male head or female head of the calibration instrument is matched; the upper part of the torsion tool is connected with a male head or a female head, and the opening and closing degree of the upper clamping jaw is adjusted by rotating the upper handle around the torsion tool in the vertical direction, so that the size of the male head or the female head of the torsion tool is matched; the torsion bar is driven to rotate along the axis of the torsion bar in the sleeve by rotating the upper handle in the horizontal direction, so that the connector can rotate in the forward direction or the reverse direction.

Furthermore, the upper clamping jaw and the lower clamping jaw are both L-shaped, and four groups of the upper clamping jaw and the lower clamping jaw are symmetrically arranged. Female first torsion instrument can be connected to the opening lateral surface of going up the clamping jaw, and public first torsion instrument can be connected to the opening medial surface, and female first appearance of maring can be connected to the opening lateral surface of lower clamping jaw, and public first appearance of maring can be connected to the opening medial surface.

Further, go up connecting portion and installation pole integrated into one piece, sleeve and lower connecting portion integrated into one piece, the telescopic inside is provided with the internal thread, the outside of installation pole is provided with the external screw thread, the installation pole with link to each other through the screw thread mode between the sleeve.

Further, the diameter of the upper connecting portion is larger than that of the mounting rod, and the diameter of the sleeve is larger than that of the lower connecting portion.

Furthermore, the upper handle is connected with the upper connecting part in a threaded connection mode, and the lower connecting part is connected with the lower handle in a threaded connection mode.

Furthermore, the outer surface of the middle part is provided with a concave part or an anti-slip surface, so that an operator can hold the multifunctional electric heating cooker conveniently.

Compared with the existing connector for calibrating the torque tool, the connector for calibrating the electric torque tool has the following beneficial effects:

the connector for calibrating the electric torque tool is simple in structure, convenient to use, accurate and firm in positioning and high in flexibility. The opening and closing degree of the upper clamping jaw and the lower clamping jaw is adjusted through the upper handle and the lower handle, the connector can be matched with torsion tools of different specifications or openings of a calibration instrument for use, the using number of the connector is reduced, the storage space of the connector is saved, the connector replacement frequency is reduced, the calibration process is simplified, the calibration precision is improved, the calibration working efficiency is obviously improved, and meanwhile the service lives of the connector and the calibration instrument are prolonged. The upper part and the middle part of the connector can be loosened by horizontally and reversely rotating the upper handle, so that the lower group of torque tools can be conveniently checked. The opening gap of the connector, the torsion tool and the calibration instrument can reach 0.01mm, the matching degree is high, the connector is not easy to loosen and slide, the measurement precision can be obviously improved, and the reliability of the result is ensured. Through set up sunken face or antiskid face in the middle part, the manual work of being convenient for is got and is put and grip. The connector is made of 45# steel through heat treatment, and the outer surface of the connector is plated with nickel for rust prevention, so that the connector is low in material cost, wear-resistant, high in mechanical strength and long in service life.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a perspective view of a connector for calibration of a power torque tool according to the present invention;

FIG. 2 is a front view of the connector for power torque tool calibration of the present invention;

FIG. 3 is a cross-sectional view taken along line "A-A" in FIG. 2;

FIG. 4 is a top view of the connector for power torque tool calibration of the present invention;

FIG. 5 is a schematic view of the connector of the present invention in connection with a male torque tool;

fig. 6 is a schematic view of the connector of the present invention when connected to a female torque tool.

The reference numbers in the figures illustrate: 1. an upper portion; 11. a torsion bar; 111. an upper connecting portion; 112. mounting a rod; 12. an upper handle; 13. an upper clamping jaw; 2. a middle part; 21. a sleeve; 22. a lower connecting portion; 3. a lower portion; 31. a lower handle; 32. a lower jaw; 4. a meshing transmission mechanism; 5. a male torque tool; 6. a female torque tool; 7. and a positioning pin.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

Unless otherwise defined, technical or scientific terms used in the claims and the specification of the present invention should have the ordinary meaning as understood by those having ordinary skill in the art to which the present invention belongs. As used in this specification and the appended claims, the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The terms "a" or "an," and the like, do not denote a limitation of quantity, but rather denote the presence of at least one. In the description of the present invention, "a plurality" means two or more unless otherwise specified. The word "comprising" or "having", and the like, means that the element or item appearing before "comprises" or "having" covers the element or item listed after "comprising" or "having" and its equivalent, but does not exclude other elements or items.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "horizontal", "longitudinal", "top", "bottom", "inner", "outer", "vertical", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

As shown in fig. 1 and 2, the connector for calibration of the electric torque tool provided in the present embodiment is composed of an upper portion 1, a middle portion 2, and a lower portion 3, which are connected in sequence. The upper part 1 comprises a torsion bar 11, an upper handle 12 and an upper clamping jaw 13; the middle part 2 is a columnar body and comprises a sleeve 21 and a lower connecting part 22 arranged at the bottom of the sleeve 21, the sleeve 21 and the lower connecting part 22 are integrally formed, the outer surface of the middle part 2 is subjected to knurling process treatment, and an anti-skid surface is arranged, so that an operator can conveniently hold the middle part; the lower portion 3 includes a lower handle 31 and a lower jaw 32, the lower handle 31 is disposed at a side surface of the lower connecting portion 22, and the lower jaw 32 is disposed at a bottom end of the lower connecting portion 22.

As shown in fig. 3, the torsion bar 11 includes an upper connection portion 111 and a mounting bar 112 provided at a bottom end of the upper connection portion 111. The upper handle 12 is disposed on a side surface of the upper connecting portion 111, the upper jaw 13 is disposed on a top end of the upper connecting portion 111, and the upper connecting portion 111 and the mounting rod 112 are integrally formed. The engaging transmission mechanism 4 is arranged in the upper connecting part 111 and is used for connecting the upper handle 12 and the upper clamping jaw 13, and the upper handle 12 can rotate around the axis of the upper handle to control the upper clamping jaw 13 to open and close so as to match different male/female head sizes on the torque tool. The bottom end of sleeve 21 is sealed, top opening and inside cavity, and the inside of sleeve 21 is provided with the internal thread, and the outside of installation pole 112 is provided with the external screw thread, and installation pole 112 sets up and links to each other through the screw thread mode in the inside of sleeve 21, and installation pole 112 can rotate around the axle center of sleeve 21. The lower connecting part 22 is also internally provided with a meshing transmission mechanism 4 for connecting a lower handle 31 and a lower clamping jaw 32, and the lower handle 31 can rotate around the axis of the lower handle to control the lower clamping jaw 32 to open and close so as to match different male/female head sizes on the calibration instrument.

As shown in fig. 1 and 3, the upper jaw 13 and the lower jaw 32 are both L-shaped, four sets of the upper jaw 13 and the lower jaw 32 are symmetrically arranged, and the upper jaw 13 and the lower jaw 32 are connected to the upper connecting portion 111 and the lower connecting portion 22 through the positioning pins 7, respectively.

As shown in fig. 2 and 4, the upper connecting portion 111 has a diameter larger than that of the mounting rod 112, and the sleeve 21 has a diameter larger than that of the lower connecting portion 22.

The open outer side of the upper jaw 13 in this embodiment may be connected to a female torque tool, as shown in fig. 5. The open inside of the upper jaw 13 may be connected to a male torque tool as shown in figure 6. The outer side surface of the opening of the lower clamping jaw 32 can be connected with a female head calibration instrument, and the inner side surface of the opening can be connected with a male head calibration instrument. The upper handle 12 is connected to the upper connecting portion 111 by a screw connection, and the lower connecting portion 22 is connected to the lower handle 31 by a screw connection.

The connector for calibrating the electric torque tool of the utility model is in operation:

the inner side surface of the opening of the lower clamping jaw 32 is connected with a male calibration instrument (or the outer side surface of the opening of the lower clamping jaw 32 is connected with a female calibration instrument), and the lower handle 3 is rotated to rotate around the lower handle in the vertical direction so as to adjust the opening and closing degree of the lower clamping jaw 32, so that the size of the male (or female) of the calibration instrument is matched; the opening outer side surface of the upper clamping jaw 13 is connected with a female electric torque tool (or the opening inner side surface of the upper clamping jaw 13 is connected with a male electric torque tool), the upper handle 12 is rotated to rotate around the upper handle in the vertical direction, the opening and closing degree of the upper clamping jaw 13 is adjusted, and therefore the size of a male head (or a female head) of the electric torque tool is matched. The electric torque tool is started to apply torque to the converter, the upper portion 1 is gradually screwed into the middle portion 2, the torque of the upper portion 1 is detected through the calibrator to be verified, after a group of electric torque tools are verified, the upper handle 12 is rotated in the horizontal direction to enable the upper handle to rotate around the axis of the middle portion 2 in the reverse direction, so that the torsion bar 11 is driven to rotate inside the sleeve 21, and the upper portion 1 is screwed out of the middle portion 2 to facilitate the next group of electric torque tools to be verified.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (6)

1. A connector for calibrating an electric torque tool is characterized by comprising an upper part (1), a middle part (2) and a lower part (3) which are connected in sequence, wherein the upper part (1) comprises a torsion bar (11), an upper handle (12) and an upper clamping jaw (13), the torsion bar (11) comprises an upper connecting part (111) and a mounting rod (112) arranged at the bottom end of the upper connecting part (111), the upper handle (12) is arranged on the side surface of the upper connecting part (111), the upper clamping jaw (13) is arranged at the top end of the upper connecting part (111), a meshing transmission mechanism (4) is arranged in the upper connecting part (111) and used for connecting the upper handle (12) and the upper clamping jaw (13), and the upper handle (12) can rotate around the axis of the upper handle to control the upper clamping jaw (13) to open and close;

the middle part (2) is a columnar body and comprises a sleeve (21) and a lower connecting part (22) arranged at the bottom of the sleeve (21), the bottom end of the sleeve (21) is closed, the top end of the sleeve is open, the sleeve is hollow, and the mounting rod (112) is arranged in the sleeve (21) and can rotate around the axis of the sleeve (21);

lower part (3) are including lower handle (31) and lower clamping jaw (32), lower handle (31) set up the side of lower connecting portion (22), lower clamping jaw (32) set up the bottom of lower connecting portion (22), the inside of lower connecting portion (22) sets up meshing drive mechanism (4) and is used for connecting lower handle (31) and lower clamping jaw (32), lower handle (31) can be around self axle center rotation control lower clamping jaw (32) open and shut.

2. A connector for electric torque tool calibration according to claim 1, wherein the upper jaw (13) and the lower jaw (32) are each "L" shaped, and the upper jaw (13) and the lower jaw (32) are each symmetrically arranged in four groups.

3. A connector for electric torque tool calibration according to claim 1, wherein the upper connection part (111) and the mounting rod (112) are integrally formed, the sleeve (21) and the lower connection part (22) are integrally formed, the sleeve (21) is internally provided with internal threads, the mounting rod (112) is externally provided with external threads, and the mounting rod (112) and the sleeve (21) are connected in a threaded manner.

4. A connector for electric torque tool calibration according to claim 1, wherein the diameter of the upper connection part (111) is larger than the diameter of the mounting rod (112), and the diameter of the sleeve (21) is larger than the diameter of the lower connection part (22).

5. A connector for electric torque tool calibration according to claim 1, wherein the upper handle (12) is connected to the upper connection portion (111) by a screw connection, and the lower connection portion (22) is connected to the lower handle (31) by a screw connection.

6. A connector for electric torque tool calibration according to claim 1, characterized in that the outer surface of the middle part (2) is provided with a recess or a slip-resistant surface.

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