CN218567113U

CN218567113U - Novel detection instrument of double-screw bolt intensity

Info

Publication number: CN218567113U
Application number: CN202222383344.8U
Authority: CN
Inventors: 夏春; 李东波; 梁波; 马月虎
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2023-03-03
Anticipated expiration: 2032-09-08

Abstract

The utility model discloses a detection instrument of type double-screw bolt intensity, including preset type torque wrench main part and joint portion, the front end of preset type torque wrench main part is fixed with the fixing base, the front end of fixing base is fixed with the head, the side of head is equipped with the stop pin that can elastically stretch out and draw back, the rear end of joint portion has seted up the draw-in groove, the card hole has been seted up in the outside of draw-in groove joint portion, the front end and the draw-in groove activity joint of head, the stop pin is connected with card hole activity joint, the front end of joint portion is integrative to be equipped with the exchange head, the front end of exchange head has seted up the detection draw-in groove, this type double-screw bolt intensity's detection instrument, through the combined cooperation of preset type torque wrench main part and removable exchange head and the detection draw-in groove that is different on it, be convenient for unify complicated various detection method or instrument; uncertain factors such as artificial vision and the like in the detection process are eliminated; the secondary repair waste and other quality defects caused after detection are avoided; the detection tool is convenient to use for each stud welding station.

Description

Novel detection instrument of double-screw bolt intensity

Technical Field

The utility model relates to a welding strength check out test set technical field specifically is a novel detection instrument of double-screw bolt intensity.

Background

The automobile body-in-white welding stud generally comprises a welding stud and a bonding stud, and the existing stud welding strength detection method with high frequency used in a workshop is 15-degree bending detection and torsion detection; however, the two detection methods have certain technical defects;

first, the 15 ° bend detection method:

1. the method is only suitable for thin plates (the thickness is less than 1 mm), such as plates with the thickness of 2mm, such as longitudinal beams and the like, and the sheet metal parts at the welding position are difficult to deform or cannot deform, such that the stud can be broken if the sheet metal parts are forcibly bent;

2. the detection of the thin plate has the same defects, the bending angle is 15 degrees, the problem of angle identification by a professional tool is solved, the detection is carried out by manual visual identification, if the baffle is arranged in front of a white automobile body, the thickness is 0.7mm, the bending angle exceeds 20 degrees, and the part metal plate has tearing risk. The angle problem cannot be accurately controlled, the angle is too small, and the strength detection fails; the angle is too large, so that the sheet metal is torn;

secondly, the torsion detection method comprises the following steps: the method for checking by using the torque wrench is the most accurate, but has defects and uncertainties;

1. the detection method is only used for bonding the stud in general, the stud is screwed in by using a nut with a corresponding type in the stud detection in general, a torque wrench is used for twisting to a button torque value specified by the process, and the detection method is not suitable for a process with high detection frequency and influences the working efficiency.

2. The torque wrench needs to be rotated to a certain angle during detection, but a detection space is not reserved during design of most clamps, so that interference exists, or the direction and the angle of a part need to be rotated during detection due to the fact that the position of a stud is located below the part, so that the situation that detection cannot be performed or operation is inconvenient exists.

In conclusion: the existing stud welding strength detection method mainly has the following defects:

1. the detection methods are also various and non-uniform due to different types of studs and different thicknesses of welded plates, so that the workshop management is inconvenient;

2. many detection methods lack specialized tool identification, rely on manual visual, have the risk of making mistakes;

3. the above-described detection method or detection tool has an interference problem due to the influence of the welding position, and there are cases where detection is impossible and difficult.

4. Most of the detection and prevention methods are tearing detection methods, restoration is needed after detection, secondary repair working hour waste and repair quality defect risks are involved, particularly, bonding studs are involved in vehicle safety, regulation quality and the like, and quality requirements are particularly important.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to overcome the existing defects, and to provide a novel detection tool for stud strength, which is convenient for unifying complex and various detection methods or tools; uncertain factors such as artificial vision and the like in the detection process are eliminated; the secondary repair waste and other quality defects caused after detection are avoided; the detection tool convenient for each stud welding station to use is provided, and the problems in the background art can be effectively solved.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a detection instrument of type double-screw bolt intensity, includes preset type torque wrench main part and joint portion, the front end of preset type torque wrench main part is fixed with the fixing base, the front end of fixing base is fixed with the head, the side of head is equipped with elastically telescopic's stop pin, the draw-in groove has been seted up to the rear end of joint portion, the card hole has been seted up in the outside of draw-in groove joint portion, the front end and the draw-in groove activity joint of head, stop pin and card hole activity joint, the front end an organic whole of joint portion is equipped with the exchange head, the detection draw-in groove has been seted up to the front end of exchange head.

As an optimal technical scheme of the utility model, the fixed orifices has been seted up to the side of head, the bottom and the fixed orifices sliding connection of stop pin, be fixed with the spring between the bottom of stop pin and the bottom of fixed orifices, the top of stop pin is semi-sphere shape.

As an optimal technical solution of the present invention, the torsion value of the preset type torque wrench main body is 3n.m-15n.m.

As an optimized technical scheme of the utility model, the outside of exchange head is equipped with anti-skidding screw thread.

As an optimal technical scheme of the utility model, detect the draw-in groove and detect the draw-in groove for can with plant the planting of welding double-screw bolt cooperation joint and weld the double-screw bolt.

As an optimal technical scheme of the utility model, detect the draw-in groove and detect the draw-in groove for the bonding double-screw bolt that can cooperate the joint with the bonding double-screw bolt.

Compared with the prior art, the beneficial effects of the utility model are that: the detection tool for the stud strength is reasonable and practical in structure and convenient to operate, and a complex and various detection methods or tools can be conveniently unified through the cooperation of the preset torque wrench main body, the replaceable exchange head and different detection clamping grooves on the replaceable exchange head; uncertain factors such as artificial vision and the like in the detection process are eliminated; the secondary repair waste and other quality defects caused after detection are avoided; the detection tool is convenient to use for each stud welding station.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is the schematic view of the local splitting structure of the present invention.

Fig. 3 is a schematic view of the local top view structure of the present invention.

Fig. 4 isbase:Sub>A schematic sectional view taken along linebase:Sub>A-base:Sub>A of fig. 3 according to the present invention.

Fig. 5 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 6 is a schematic view of a partially split structure according to embodiment 2 of the present invention.

Fig. 7 is a schematic partial top view structure diagram according to embodiment 2 of the present invention.

Fig. 8 is a schematic cross-sectional view at B-B of fig. 7 according to the present invention.

In the figure: the preset torque wrench comprises a preset torque wrench body 1, a fixed seat 2, a head 3, a fixed hole 4, a spring 5, a locking pin 6, a clamping portion 7, a clamping groove 8, a clamping hole 9, an exchange head 10, a detection clamping groove 11 and anti-skid threads 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-4, the present invention provides a technical solution: a detection tool for the strength of a profile stud comprises a preset torque wrench body 1 and a clamping part 7, wherein a fixed seat 2 is fixed at the front end of the preset torque wrench body 1, a head part 3 is fixed at the front end of the fixed seat 2, an elastically telescopic locking pin 6 is arranged on the side surface of the head part 3, the top end of the locking pin 6 is semi-spherical, so that the locking pin 6 can be elastically clamped, a fixed hole 4 is formed in the side surface of the head part 3, the bottom end of the locking pin 6 is slidably connected with the fixed hole 4, a spring 5 is fixed between the bottom of the locking pin 6 and the bottom of the fixed hole 4, a clamping groove 8 is formed in the rear end of the clamping part 7, a clamping hole 9 is formed in the outer side of the clamping part 7 of the clamping groove 8, the front end of the head part 3 is movably clamped with the clamping groove 8, and the locking pin 6 is movably clamped with the clamping hole 9, the integrative exchange head 10 that is equipped with of front end of joint portion 7, elastic pressure to locking pin 6 through spring 5, the joint and the separation of front end and draw-in groove 8 of head 3, and the joint and the separation of locking pin 6 and card hole 9, be convenient for change exchange head 10 as required, the outside of exchange head 10 is equipped with anti-skidding screw thread 12, play skid-proof effect when changing exchange head 10, detection draw-in groove 11 has been seted up to exchange head 10's front end, the torsion value of preset type torque wrench body 1 is 3N.m-15N.m, detection draw-in groove 11 is for can with plant the welding double-screw bolt detection draw-in groove that welds double-screw bolt cooperation joint, through the mating action of detection draw-in groove 11 on preset type torque wrench body 1 and the exchange head 10, accomplish the detection work of planting the welding double-screw bolt.

When in use: through the preset type torque wrench body 1, the replaceable exchange head 10 and different detection clamping grooves 11 on the replaceable exchange head, a required torque value is set on the preset type torque wrench and the torque wrench is locked, the detection clamping grooves 11 on the exchange head 10 are matched and clamped with the stud to be welded to be detected correspondingly, and the bending operation is started.

Example 2:

referring to fig. 5 to 8, in this embodiment, compared with embodiment 1, the other contents are the same, and only the detection card slot 11 is replaced by a ground stud detection card slot that can be engaged with a ground stud in a matching manner.

When in use: the strength of the bonding stud can be conveniently detected under the combined action of the exchange head 10 with the bonding stud detection clamping groove and the preset type torque wrench main body 1.

Through the operation of the utility model, the complex and various detection methods or tools are convenient to unify; meanwhile, uncertain factors such as artificial vision and the like in the detection process are eliminated; the secondary repair waste and other quality defects caused after detection are avoided; the detection tool is convenient to use for each stud welding station.

The utility model discloses the preset type torque wrench who uses in is the CL-MH type, and its minimum torsion value of predetermineeing is 3N.m, and the biggest torsion value is 15N.m, and precision 3% accords with present welded M8, M6 bonding double-screw bolt and M6 and plants the required moment standard of welding the double-screw bolt.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel detection instrument of double-screw bolt intensity, includes preset type torque wrench main part (1) and joint portion (7), its characterized in that: the front end of presetting type torque wrench main part (1) is fixed with fixing base (2), the front end of fixing base (2) is fixed with head (3), the side of head (3) is equipped with stop pin (6) that can elastically stretch out and draw back, draw-in groove (8) have been seted up to the rear end of joint portion (7), card hole (9) have been seted up in the outside of draw-in groove (8) joint portion (7), the front end and draw-in groove (8) activity joint of head (3), stop pin (6) and card hole (9) activity joint, the front end an organic whole of joint portion (7) is equipped with exchange head (10), detection draw-in groove (11) have been seted up to the front end of exchange head (10).

2. The novel stud strength detection tool according to claim 1, characterized in that: the side surface of the head part (3) is provided with a fixing hole (4), the bottom end of the locking pin (6) is connected with the fixing hole (4) in a sliding mode, a spring (5) is fixed between the bottom of the locking pin (6) and the bottom of the fixing hole (4), and the top end of the locking pin (6) is semi-spherical.

3. The novel stud strength detection tool according to claim 1, characterized in that: the torsion value of the preset type torque wrench main body (1) is 3N.m-15N.m.

4. The novel stud strength detection tool according to claim 1, characterized in that: the outer side of the exchange head (10) is provided with an anti-skid thread (12).

5. The novel stud strength detection tool according to claim 1, characterized in that: the detection clamping groove (11) is a welding stud detection clamping groove which can be clamped with a welding stud in a matched mode.

6. The novel stud strength detection tool according to claim 1, characterized in that: the detection clamping groove (11) is a bonding stud detection clamping groove which can be matched and clamped with a bonding stud.