Universal nut and hole matched welding positioning tool

Abstract

The utility model provides a universal nut and hole matching welding positioning tool, and relates to the field of nut welding positioning tools. The stepped positioning assembly is inserted into a through hole formed in the part with the hole; a hexagonal flange nut is arranged outside the stepped positioning assembly in a sleeving manner; through cooperation of the stepped positioning assembly, the conical shaft sleeve and the butterfly bolt, it can be guaranteed that the hexagon flange nut and a through hole formed in the part with the hole are concentric, and the problem that it is difficult to guarantee that the hexagon flange nut and the through hole formed in the part with the hole are concentric only through naked eye calibration, and consequently the part with the hole cannot be assembled is solved. And the design and manufacturing cost of a special positioning auxiliary tool can be reduced, the purposes of reducing cost and improving efficiency are achieved, and the problems that when a non-self-positioning nut and a part hole are welded in a matched mode at present, calibration is usually conducted through naked eyes, it is difficult to guarantee that the nut welding and the part hole are concentric, and a welding positioning tool in the market is complex in structure and cannot achieve cost reduction and efficiency improvement are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of nut welding positioning tooling, in particular to a universal nut and hole matching welding positioning tooling. Background Art

[0002] A nut is a universal fastener that is often screwed together with a bolt or a screw to act as a fastener. In some applications, the nut needs to be welded to the workpiece to enhance the reliability of the connection. Non-self-locating nuts include hexagonal nuts, hexagonal flange nuts, square nuts, etc. When these nuts are welded with part holes, it is difficult to ensure that the nut is concentric with the hole, especially for some holes that are relatively related. If the nut welding is not concentric with the part hole, the part may not be assembled.

[0003] At present, when non-self-locating nuts are welded with part holes, they are often calibrated only by naked eyes, which makes it difficult to ensure that the nut welding is concentric with the part hole, resulting in the inability to assemble the parts. Even if some non-self-locating nuts can be welded with part holes using welding positioning tooling on the market, the welding positioning tooling on the market has a complex structure and is time-consuming and costly to use, and cannot achieve the purpose of reducing costs and increasing efficiency. Utility Model Content

[0004] The disclosed embodiment relates to a universal nut and hole matching welding positioning tool, which can ensure the concentricity of the hexagonal flange nut and the through hole opened on the part with a hole through the cooperation of a stepped positioning component, a tapered sleeve and a butterfly bolt, thereby avoiding the problem that it is difficult to ensure the concentricity of the hexagonal flange nut and the through hole opened on the part with a hole only through visual calibration, resulting in the inability to assemble the part with a hole, and can reduce the design and manufacturing costs of special positioning aids, thereby achieving the purpose of reducing costs and increasing efficiency; through the provision of a ring and a connecting rope, after welding, the butterfly bolt can be manually loosened and removed to make the positioning pin lose its fastening effect, and then the positioning pin can be pulled out from the through hole opened on the part with a hole, and then the ring and the connecting rope can be used to avoid the phenomenon of the loosened and removed butterfly bolt being lost.

[0005] The utility model provides a universal nut and hole matching welding positioning tool, specifically comprising: a stepped positioning component; the stepped positioning component is inserted into a through hole opened on a part with a hole; the stepped positioning component is sleeved with a hexagonal flange nut on the outside, and the bottom end face of the hexagonal flange nut is in close contact with the upper end face of the part with the hole; a tapered shaft sleeve is inserted into the outside of the upper end of the stepped positioning component, and a threaded through hole is opened on the right side of the tapered shaft sleeve, and a butterfly bolt is connected to the inside of the threaded through hole through a thread.

[0006] In at least some embodiments, the stepped positioning assembly includes a base, a positioning pin and a stepped positioning block. The upper end surface of the base is provided with a stepped positioning block, which is a circular step structure, and a positioning pin is fixedly connected to the center of the top end surface of the stepped positioning block.

[0007] In at least some embodiments, a positioning hole is provided at the center of the upper end surface of the tapered sleeve, and the positioning hole is used for plugging with the positioning pin, and the positioning hole is communicated with the threaded through hole.

[0008] In at least some embodiments, one end of the butterfly bolt away from the stud is fixedly connected to a T-shaped column, and a collar is sleeved on the outside of the T-shaped column.

[0009] In at least some embodiments, a connecting rope is fixedly connected to the collar, and the other end of the connecting rope is fixed to the outside of the tapered sleeve.

[0010] In at least some embodiments, when the butterfly bolt is in a tightened state, the stud end on the butterfly bolt is in close contact with the right side of the outer peripheral surface of the positioning pin.

[0011] In at least some embodiments, when the stepped positioning assembly and the tapered sleeve are in a positioning state, one layer of the stepped positioning block is located in a through hole opened on the holed part, and the lower end of the tapered sleeve is located on the upper side of the hexagonal flange nut.

[0012] The utility model provides a universal nut and hole matching welding positioning tool, which has the following beneficial effects:

[0013] 1. Through the cooperation of the stepped positioning assembly, the tapered sleeve and the butterfly bolt, the hexagonal flange nut can be ensured to be concentric with the through hole opened on the part with a hole. The welding positioning tooling has a simple structure and a high degree of commonality, which avoids the problem that it is difficult to ensure the concentricity of the hexagonal flange nut and the through hole opened on the part with a hole by visual calibration alone, resulting in the inability to assemble the part with a hole. It can also reduce the design and manufacturing costs of special positioning aids, thereby achieving the purpose of reducing costs and increasing efficiency.

[0014] 2. Through the arrangement of the collar and the connecting rope, after welding, the butterfly bolt can be manually loosened and removed, so that the locating pin loses its fastening effect, and then the locating pin is pulled out from the through hole opened on the perforated part, and then the collar and the connecting rope are used to avoid the phenomenon of the loosened and removed butterfly bolt being lost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached picture:

[0018] Figure 1 A structural diagram showing the overall structure of the present application;

[0019] Figure 2 A schematic diagram of the structure of the present application in a split state is shown;

[0020] Figure 3 A schematic structural diagram of a stepped positioning assembly of the present application is shown;

[0021] Figure 4 A schematic structural diagram of a partial cross-section of a stepped positioning assembly, a part with a hole, a hexagonal flange nut, a tapered sleeve and a butterfly bolt of the present application is shown.

[0022] Reference numerals list

[0023] 1. Step-type positioning assembly; 101. base; 102. positioning pin; 103. step-type positioning block;

[0024] 2. Parts with holes;

[0025] 3. Hexagonal flange nut;

[0026] 4. tapered sleeve; 401. threaded through hole; 402. positioning socket;

[0027] 5. Butterfly bolt; 501. T-shaped column; 502. Ring; 503. Connecting rope. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1: Please refer to Figures 1 to 4 :

[0030] The utility model proposes a universal nut and hole matching welding positioning tool, comprising: a stepped positioning component 1; the stepped positioning component 1 is inserted into a through hole opened on a part with a hole 2; a hexagonal flange nut 3 is sleeved on the outside of the stepped positioning component 1, and the bottom end surface of the hexagonal flange nut 3 is in close contact with the upper end surface of the part with the hole 2; a tapered shaft sleeve 4 is inserted on the outside of the upper end of the stepped positioning component 1, and a threaded through hole 401 is opened on the right side of the tapered shaft sleeve 4, and a butterfly bolt 5 is connected to the inside of the threaded through hole 401 through a thread, so as to fix the stepped positioning component 1.

[0031] The stepped positioning assembly 1 comprises a base 101, a positioning pin 102 and a stepped positioning block 103. The upper end surface of the base 101 is provided with a stepped positioning block 103. The stepped positioning block 103 is a circular step structure, and the positioning pin 102 is fixedly connected to the center of the top surface of the stepped positioning block 103. The stepped positioning block 103 in the stepped positioning assembly 1 adopts two types, one for positioning odd-numbered apertures, and the other for positioning even-numbered apertures. The positionable apertures cover but are not limited to φ5-φ21, including the apertures corresponding to the most commonly used nut welding. In order to facilitate positioning, the stepped positioning assembly 1 adopts a clearance fit with the part hole.

[0032] A positioning hole 402 is provided at the center of the upper end surface of the tapered sleeve 4 , and the positioning hole 402 is used for plugging with the positioning pin 102 , and the positioning hole 402 is communicated with the threaded through hole 401 for threaded connection with the butterfly bolt 5 .

[0033] When the butterfly bolt 5 is in a tightened state, the stud end on the butterfly bolt 5 is in close contact with the right side of the outer peripheral surface of the positioning pin 102, thereby locking and fixing the positioning pin 102.

[0034] When the stepped positioning assembly 1 and the tapered sleeve 4 are in the positioning state, one layer of the stepped positioning block 103 is located in the through hole opened on the hole part 2, and the lower end of the tapered sleeve 4 is located on the upper side of the inside of the hexagonal flange nut 3, and the hexagonal flange nut 3 is positioned by the tapered surface at the lower end of the tapered sleeve 4.

[0035] Embodiment 2, based on embodiment 1, as Figure 1 As shown, one end of the butterfly bolt 5 away from the stud is fixedly connected to a T-shaped column 501, and a ring 502 is sleeved on the outside of the T-shaped column 501; a connecting rope 503 is fixedly connected to the ring 502, and the other end of the connecting rope 503 is fixed to the outside of the tapered sleeve 4; through the arrangement of the ring 502 and the connecting rope 503, the phenomenon of the butterfly bolt 5 being loosened and removed being lost is avoided.

[0036] The working principle of this embodiment is as follows: when welding the hexagonal flange nut 3 to the upper part of the part with a hole 2, first, select a suitable type of stepped positioning block 103, and then insert the positioning pin 102 into the through hole opened on the part with a hole 2. At this time, one layer of the stepped positioning block 103 is located in the through hole opened on the part with a hole 2, and the middle part of the positioning pin 102 is used to position the hexagonal flange nut 3 so that it is concentric with the through hole opened on the part with a hole 2.

[0037] After the nut 3 is assembled, the nut 3 is put on the outer part of the locating pin 102, and the bottom end face of the nut 3 is in contact with the upper end face of the part with hole 2. Then the tapered sleeve 4 is inserted into the outer part of the upper end of the locating pin 102, so that the tapered surface of the lower end side of the tapered sleeve 4 is completely in contact with the upper edge of the inner part of the hexagonal flange nut 3. At this time, the lower end of the tapered sleeve 4 is located on the upper side of the inner part of the hexagonal flange nut 3, proving that the hexagonal flange nut 3 is concentric with the stepped positioning component 1 at this time, and then the butterfly bolt 5 is tightened to lock the locating pin 102 to prevent it from falling, which is convenient for the welding operation of the hexagonal flange nut 3. Next, the hexagonal flange nut 3 can be welded to the upper part of the part with hole 2. When the hexagonal flange nut 3 is welded with the part with hole 2, the positioning effect is achieved by the cooperation of the stepped positioning component 1, the tapered sleeve 4 and the butterfly bolt 5, thereby ensuring that the hexagonal flange nut 3 is concentric with the through hole opened on the part with hole 2, avoiding the problem that the part with hole 2 cannot be assembled.

[0038] After welding, the butterfly bolt 5 is manually loosened and removed, so that the positioning pin 102 loses its fastening effect, and then the positioning pin 102 is pulled out from the through hole opened on the perforated part 2. At this time, the setting of the ring 502 and the connecting rope 503 can prevent the loosened and removed butterfly bolt 5 from being lost.

[0039] In this article, there are a few points to note:

[0040] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0041] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0042] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A universal nut and hole matching welding positioning tool, comprising: A stepped positioning component (1); the stepped positioning component (1) is inserted into a through hole opened on a part with a hole (2); characterized in that a hexagonal flange nut (3) is sleeved on the outside of the stepped positioning component (1), and the bottom end surface of the hexagonal flange nut (3) is in close contact with the upper end surface of the part with a hole (2); a tapered sleeve (4) is inserted on the outside of the upper end of the stepped positioning component (1), and a threaded through hole (401) is opened on the right side of the tapered sleeve (4), and a butterfly bolt (5) is connected to the inside of the threaded through hole (401) through a thread.

2. A universal nut and hole matching welding positioning tool according to claim 1, characterized in that: The stepped positioning assembly (1) comprises a base (101), a positioning pin (102) and a stepped positioning block (103); the upper end surface of the base (101) is provided with a stepped positioning block (103); the stepped positioning block (103) is a circular step structure, and the positioning pin (102) is fixedly connected to the center of the top end surface of the stepped positioning block (103).

3. A universal nut and hole matching welding positioning tool according to claim 1, characterized in that: A positioning hole (402) is provided at the center of the upper end surface of the tapered shaft sleeve (4), and the positioning hole (402) is used for plugging with the positioning pin (102), and the positioning hole (402) is communicated with the threaded through hole (401).

4. A universal nut and hole matching welding and positioning tool according to claim 1, characterized in that: The end of the butterfly bolt (5) away from the stud is fixedly connected to a T-shaped column (501), and a collar (502) is sleeved on the outside of the T-shaped column (501).

5. A universal nut and hole matching welding positioning tool according to claim 4, characterized in that: A connecting rope (503) is fixedly connected to the collar (502), and the other end of the connecting rope (503) is fixed to the outside of the conical shaft sleeve (4).

6. A universal nut and hole matching welding and positioning tool according to claim 4, characterized in that: When the butterfly bolt (5) is in a tightened state, the stud end on the butterfly bolt (5) is in close contact with the right side of the outer peripheral surface of the positioning pin (102).

7. A universal nut and hole matching welding and positioning tool according to claim 2, characterized in that: When the stepped positioning assembly (1) and the tapered shaft sleeve (4) are in a positioning state, one layer of the stepped positioning block (103) is located in a through hole opened on the hole-bearing part (2), and the lower end of the tapered shaft sleeve (4) is located on the upper side of the inside of the hexagonal flange nut (3).

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