CN210232827U

CN210232827U - Stud welding strength detects uses spanner

Info

Publication number: CN210232827U
Application number: CN201920878073.9U
Authority: CN
Inventors: Guiyun Jiang; 蒋贵云; Songlin Chen; 陈松林; Qiang Wu; 吴强; Min Yang; 杨敏
Original assignee: Nanjing Donghua Liwei Automobile Components Co ltd
Current assignee: Nanjing Donghua Liwei Automobile Components Co ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-04-03
Anticipated expiration: 2029-06-12

Abstract

The utility model provides a double-screw bolt welding strength detects uses spanner, including the spanner handle, spanner upper portion, the spanner lower part, a spring, the joint turns to the body, concave end does not have first base rice jackscrew, half tooth bolt, the upper end and spanner handle fixed connection on spanner upper portion, the tip passes through half tooth bolted connection with the upper end of spanner lower part under the lower tip on spanner upper portion, the spring, the joint turns to the body and concave end does not have first base rice jackscrew setting inside spanner upper portion, the setting of concave end does not have first base rice jackscrew is close to the one end of spanner handle in spanner upper portion, the joint turn to the body, the setting is close to the one end of spanner lower part in spanner upper portion, the spring be located between joint turns to body and the concave end does not have first base rice jack. The utility model can adjust the torsion by adjusting the length of the pressure spring, and has a large applicable checking torsion range; the lower part of the corresponding torque wrench can be replaced according to the types of the checked parts, and the application environment range is wide; the spanner has firm and simple structure and low manufacturing and maintenance cost; can meet various complex environments of welding production fields.

Description

Stud welding strength detects uses spanner

Technical Field

The utility model belongs to welding quality control field specifically, relates to a stud welding strength detects uses spanner.

Background

After the stud welding operation, the stud needs to be subjected to strength inspection, and the inspection methods generally include three methods: metallographic penetration test, destructive examination and non-destructive examination. The metallographic penetration test equipment is expensive, the requirement on professional ability of personnel is high, the time consumption is long, and parts are lost; destructive inspection takes a long time and the parts cannot be reused. The bending moment inspection in the nondestructive inspection is performed at most in the daily field inspection, the frequency is highest, the part cost is saved at most, and the timeliness is high.

And (4) checking the bending moment, wherein the checking method is that a sleeve matched with the diameter of the stud is sleeved on the stud, and the stud is stressed laterally, so that before the wrench is bent by less than or equal to 15 degrees, the root of the stud does not crack or fall off, and the stud is judged to be qualified. However, when the conventional bending moment inspection is performed on a high-strength plate, a hot-formed plate or a thick plate with the plate thickness larger than 1.2 mm, the bending moment inspection cannot be performed because the bottom of the welding stud is not easy to deform locally. If the existing torque wrench for detecting the strength is used for carrying out 100% strength detection on the on-site stud, the existing torque wrench on the market is difficult to purchase, expensive in price, complex in site, high in detection frequency, improper in use method and easy to damage, so that loss is caused.

The existing inlet torque wrench comprises a handle, a wrench upper part, a wrench lower part, a cylindrical steering body, a spring and a connecting bolt. However, the imported torque wrench has the following disadvantages: firstly, the purchase channel is single and the price is high; secondly, the connecting part of the handle and the upper part of the wrench is fixed by a jackscrew, so that the handle is easy to loosen, and can rotate to deviate from the bending required position of the wrench when in use, so that the torque force is not fixed; thirdly, the cylindrical steering body is used as a bending joint in the upper part of the wrench, and the internal design is complex; fourthly, some key parts are designed to be thin and easy to damage.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a stud welding strength detects uses spanner, it is easy to draw materials, with low costs, simple structure, and is not fragile, can deal with complicated service environment.

The technical scheme is as follows: the utility model provides a stud welding strength detects uses spanner, including spanner handle, spanner upper portion, spanner lower part, spring, joint turn to body, the headless base rice jackscrew of concave end, half tooth bolt, upper end and spanner handle fixed connection on spanner upper portion, the lower tip on spanner upper portion passes through half tooth bolted connection with the upper end of spanner lower part, spring, joint turn to body and the setting of the headless base rice jackscrew of concave end inside spanner upper portion, the setting of the headless base rice jackscrew of concave end is close to the one end of spanner handle in spanner upper portion, the joint turn to the body, set up the one end that is close to the spanner lower part in spanner upper portion, the spring be located between the headless base rice jackscrew of joint turn to body and concave end. The utility model provides a stud welding strength detects and uses spanner easy for material selection, and is with low costs, simple structure, and is not fragile, can deal with complicated service environment.

Further, foretell double-screw bolt welding strength detects uses spanner, the outer wall of spanner handle is equipped with a set of arc recess along the circumference wall to spanner handle intermediate position is equipped with the spacing groove that turns to of arc, the upper end setting on spanner upper portion turns to the inslot at the spacing of arc. Is beneficial to grasping, and simultaneously prevents slipping during grasping.

Further, foretell double-screw bolt welding strength detects uses spanner, the outside of spanner upper portion upper end is equipped with the spacing groove that turns to of arc, the spacing groove that turns to of arc and spanner handle position placed in the middle cooperation is connected, and the detection that spanner upper portion and handle illuminated because of rotatory skew is inaccurate when preventing to use.

Further, according to the wrench for detecting the welding strength of the stud, round holes with different diameters and different lengths are formed in the upper portion of the wrench, threads are arranged on the inner hole wall of the upper end of the upper portion of the wrench, and the non-head base screw thread at the concave end is arranged in the round hole in the upper end of the upper portion of the wrench. The relative position of the steering body and the spring is convenient to place and fix.

Further, according to the wrench for detecting the welding strength of the stud, the lower end part of the upper part of the wrench is provided with the strip-shaped wide groove, and the strip-shaped wide groove is provided with the single-sided thread hole. The wide groove has a guiding function, and the structure is simple and easy to realize.

Further, foretell double-screw bolt welding strength detects uses spanner, the upper end of spanner lower part protruding for the bar form, be equipped with the circular arc on the bar form arch, and the bellied department placed in the middle of the bar form is equipped with the through hole. The strip-shaped convex part plays a role in guiding, and the arc design is favorable for angle bending during inspection and returning of the lower part of the wrench after stress inspection.

Further, in the wrench for detecting stud welding strength, the lower end portion of the lower portion of the wrench is provided with a circular hole. Can effectively guide and limit.

Further, according to the wrench for detecting the welding strength of the stud, the thread on the inner wall of the upper end of the upper portion of the wrench and the headless screw thread on the concave end are connected in a threaded fit mode. The torsion value required by inspection specification is adjusted by rotating the concave-end headless jackscrew.

Further, according to the wrench for detecting stud welding strength, the strip-shaped protrusion at the upper end of the lower portion of the wrench is arranged in the strip-shaped wide groove, and the strip-shaped protrusion at the upper end of the lower portion of the wrench is connected with the upper portion of the wrench through the half-thread bolt. Has the functions of guiding and limiting, and fixes the force application direction during examination.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has: the structure is novel, and the handle of the wrench is provided with the finger-imitating arc-shaped groove, so that the handle is convenient to grasp; an arc-shaped limiting steering groove is arranged in the middle of the handle and is used for fixedly connecting the upper part of the wrench and forbidding the torque value change caused by the rotation deviation of the handle and the upper and lower checking parts of the wrench; round holes with different diameters and different lengths are arranged in the wrench at the upper part of the wrench and penetrate through the wrench in a step form, so that the relative positions of the steering body and the spring can be conveniently placed and fixed; the concave-end non-head base screw is convenient for rotating and adjusting the torsion value required by the inspection specification; the upper end of the upper part of the wrench is provided with an arc, the lower end of the upper part of the wrench is provided with a strip-shaped wide groove which is connected with the lower part of the wrench through a half-tooth bolt, and the arc design is favorable for angle bending and return of the lower part of the wrench after stress inspection; the material is GCr15 bearing steel, is easy to obtain materials, low in price, good in turning performance, easy to purchase and easy to turn and manufacture in the later period; quenching treatment is carried out, so that the hardness and the wear resistance of the wrench are improved, and the service life of the wrench is prolonged; the steel ball is adopted as the bending design of the steering knuckle, the steel ball is easy to obtain, the price is low, the hardness is high, the surface roughness value is low, and the steering performance is good. Has great market competitiveness.

Drawings

Fig. 1 is a schematic structural view of the stud welding strength detecting wrench of the present invention;

FIG. 2 is a schematic sectional view of the internal structure of the stud welding strength detecting wrench of the present invention;

fig. 3 is a schematic view of the lower structure of the torque wrench of the present invention.

In the figure: 1 spanner handle, 11 arc recesses, 12 arc spacing turn to groove, 2 spanner upper portions, 21 arc spacing turn to groove, 22 bar wide grooves, 23 thread holes, 3 spanner lower parts, 31 bar form arch, 32 circular arcs, 4 springs, 5 joint turn to the body, 6 recess end does not have first base meter jackscrew, 7 half tooth bolts.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

The stud welding strength detection wrench shown in fig. 1 and 2 includes a wrench handle 1, a wrench upper portion 2, a wrench lower portion 3, a spring 4, a joint turning body 5, a female-end headless screw 6, and a half-thread bolt 7. The outer wall of the wrench handle 1 is provided with a group of arc-shaped grooves 11 along the circumferential wall, an arc-shaped limiting steering groove 12 is arranged in the middle position of the wrench handle 1, an arc-shaped limiting steering groove 21 is arranged outside the upper end part of the wrench upper part 2, the arc-shaped limiting steering groove 21 is matched and connected with the limiting steering groove 12 in the middle position of the wrench handle 1, round holes with different diameters and different lengths are arranged inside the wrench upper part 2, screw teeth are arranged on the inner hole wall of the round hole at the upper end, the spring 4, the joint steering body 5 and the concave-end headless rice top wire 6 are arranged inside the wrench upper part 2, wherein the concave-end headless rice top wire 6 is arranged at one end, close to the wrench handle 1, in the wrench upper part 2, and the concave-end headless rice top wire 6 is matched and connected with the screw teeth at; the joint steering body 5 is arranged at one end, close to the lower part 3 of the wrench, in the upper part 2 of the wrench; the spring 4 is positioned between the knuckle steering body 5 and the concave-end headless jackscrew 6. The lower end part of the upper part 2 of the wrench is provided with a strip-shaped wide groove 22, and a single-sided thread hole 23 is arranged at the strip-shaped wide groove 22. Like the protruding 31 of bar form of the upper end of 3 spanner lower parts in fig. 3, be equipped with circular arc 32 on the protruding 31 of bar form, the department placed in the middle of the protruding 31 of bar form is equipped with the through hole, and the protruding 31 of bar form of 3 upper end parts in spanner lower parts sets up in bar wide groove 22, and the protruding 31 of bar form of 3 upper end parts in spanner lower parts is connected with the lower tip of spanner upper portion 2 through half tooth bolt 7, just the lower tip of spanner lower part 3 is equipped with the round hole.

When the wrench is in operation, according to the structural foundation, the matched lower wrench part 3 is selected according to the type of the welding stud to be inspected, the female-end headless screw 6 is rotated clockwise or anticlockwise to press or loosen the spring 4 to reach a certain torque fixed value, the round hole sleeve of the lower wrench part 3 is sleeved on the corresponding stud, the wrench handle 1 is held, and the wrench handle 1 is kept parallel to the half-thread bolt 7 and exerts force forwards and backwards; when the lower part 3 of the wrench and the upper part 2 of the wrench are bent by 15 degrees, the root of the stud does not crack or fall off, and the stud welding strength is qualified.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a stud welding strength detects uses spanner which characterized in that: comprises a wrench handle (1), a wrench upper part (2), a wrench lower part (3), a spring (4), a joint steering body (5), a concave end headless screw (6) and a half-tooth bolt (7), the upper end part of the upper wrench part (2) is fixedly connected with the wrench handle (1), the lower end part of the upper wrench part (2) is connected with the upper end part of the lower wrench part (3) through a half-tooth bolt (7), the spring (4), the joint steering body (5) and the concave-end headless jackscrew (6) are arranged inside the upper part (2) of the wrench, the concave-end non-head base screw (6) is arranged at one end of the upper part (2) of the wrench close to the handle (1) of the wrench, the joint steering body (5) is arranged at one end of the upper part (2) of the wrench close to the lower part (3) of the wrench, the spring (4) is positioned between the joint steering body (5) and the concave-end non-head base screw (6).

2. The stud welding strength detection wrench according to claim 1, characterized in that: the outer wall of spanner handle (1) is equipped with a set of arc recess (11) along the circumference wall to spanner handle (1) intermediate position is equipped with arc spacing steering groove (12), the upper end setting of spanner upper portion (2) is in arc spacing steering groove (12).

3. The stud welding strength detection wrench according to claim 1, characterized in that: the outer portion of the upper end of the upper portion (2) of the wrench is provided with an arc-shaped limiting steering groove (21), and the arc-shaped limiting steering groove (21) is connected with a limiting steering groove (12) in the middle of the wrench handle (1) in a matched mode.

4. The stud welding strength detection wrench according to claim 3, characterized in that: round holes with different diameters and lengths are formed in the wrench upper portion (2), screw teeth are arranged on the inner hole wall of the upper end of the wrench upper portion (2), and the concave-end headless rice top screw (6) is arranged in the round hole in the upper end of the wrench upper portion (2).

5. The stud welding strength detection wrench according to claim 3, characterized in that: the lower end part of the upper part (2) of the wrench is provided with a strip-shaped wide groove (22), and a single-sided thread hole (23) is arranged at the strip-shaped wide groove (22).

6. The stud welding strength detection wrench according to claim 1, characterized in that: the upper end of spanner lower part (3) be bar shape arch (31), be equipped with circular arc (32) on bar shape arch (31), and the department placed in the middle of bar shape arch (31) is equipped with the through-hole.

7. The stud welding strength detection wrench according to claim 6, characterized in that: the lower end part of the lower part (3) of the wrench is provided with a round hole.

8. The stud welding strength detection wrench according to claim 4, characterized in that: the inner wall thread at the upper end of the upper wrench part (2) is connected with the concave-end headless screw (6) in a matched manner through threads.

9. The stud welding strength detection wrench according to claim 5 or 6, characterized in that: the strip-shaped bulge (31) at the upper end part of the lower spanner part (3) is arranged in the strip-shaped wide groove (22), and the strip-shaped bulge (31) at the upper end part of the lower spanner part (3) is connected with the upper spanner part (2) through a half-tooth bolt (7).