A tooling for non-standard toothed fasteners

Abstract

The utility model belongs to the field of frock, concretely relates to a frock for non-standard toothed fastener. Including sleeve and handle, sleeve inner ring diameter is bigger than the outer diameter of non-standard toothed fastener, and the sleeve inner ring part circumference is equipped with the tooth that matches with the tooth of non-standard toothed fastener, and the tooth height of inner ring tooth is 70~80% of the tooth height of fastener outer tooth. The utility model is strong when using the thread in sleeve and fastener thread adhesion, and is not easy to slip when disassembling, and is portable and easy to use, and improves reliability.

Description

Technical Field

[0001] This utility model belongs to the field of tooling, specifically relating to a tooling for non-standard toothed fasteners. Background Technology

[0002] To perform repair work on aviation products, it is necessary to disassemble and reassemble the microwave modules and circuit boards of the components. The low-frequency connectors of aviation products are mostly PPMM1 series plugs. The PPMM1 series plug is fixed by two toothed fasteners. The diameter and tooth shape of the two toothed fasteners are not standard. Common tools cannot disassemble and install these non-standard toothed fasteners.

[0003] In the existing technology, some people use needle-nose pliers for disassembly and assembly. However, when using needle-nose pliers and other general tools to disassemble and assemble toothed fasteners, the knurled threads of the toothed fasteners may be damaged. When the space is narrow, using needle-nose pliers and other general tools may even result in improper installation, which may pose a quality hazard. Utility Model Content

[0004] The purpose of this invention is to provide a tooling for non-standard toothed fasteners.

[0005] The technical solution to achieve the purpose of this utility model is: a tooling for non-standard toothed fasteners, including a sleeve and a handle. The inner diameter of the sleeve is larger than the outer diameter of the non-standard toothed fastener. The inner circle of the sleeve is provided with teeth that match the teeth of the non-standard toothed fastener. The tooth height of the inner circle teeth is 70-80% of the tooth height of the outer teeth of the fastener.

[0006] Furthermore, the central angle corresponding to the inner ring teeth of the sleeve is 76°.

[0007] Furthermore, the length of the inner ring teeth of the sleeve matches the length of the fastener teeth.

[0008] Furthermore, the total length of the sleeve is 15±1mm, and the length corresponding to the inner ring teeth is 5±0.5mm.

[0009] Furthermore, the inner ring at the front end of the sleeve is provided with a guide hole C0.5.

[0010] Furthermore, the tooth profile of the inner ring teeth of the sleeve is straight groove m0.2 GB / T6403.3-1986.

[0011] Furthermore, the outer wall of the end where the sleeve connects to the handle is provided with a welded chamfer C1.

[0012] Furthermore, the length of the handle is 157±5mm.

[0013] Furthermore, the handle uses alternating smooth and knurled sections, with the diameter of the smooth section being smaller than that of the knurled section.

[0014] Compared with the prior art, the significant advantages of this utility model are:

[0015] This utility model designs a special tooling for non-standard toothed fasteners. By machining an arc-shaped toothed ring inside the tooling, the fastener can be disassembled and assembled, avoiding damage to the fastener teeth.

[0016] The inner ring tooth of this invention has a tooth height of 70%-80% of the fastener tooth height. The fastener can be disassembled and assembled without the inner ring tooth profile being completely matched with the fastener tooth. This reduces the manufacturing cost of the tooling, minimizes damage to the fastener teeth, and improves assembly efficiency.

[0017] The inner ring teeth of this invention are set to a central angle of 76°, which achieves lower cost, better meshing, and easier assembly and disassembly.

[0018] The sleeve of this utility model has a guide hole for guiding the fastener.

[0019] The sleeve of this invention features a welded chamfer, which enables better welding with the handle.

[0020] This invention enables convenient and quick assembly and disassembly of the PPMM1 series plugs, while ensuring product quality and safety. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the tooling sleeve structure of this utility model; where (a) is a sectional view and (b) is a cross-sectional view.

[0022] Figure 2 This is a schematic diagram of the tooling of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1-Sleeve, 2-Handle. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] A tooling for non-standard toothed fasteners includes a sleeve 1 and a handle 2. The inner diameter of the sleeve 1 is larger than the outer diameter of the non-standard toothed fastener. The inner circumference of the sleeve 1 is provided with teeth that match the teeth of the non-standard toothed fastener. The tooth height of the inner ring teeth is 70-80% of the tooth height of the outer teeth of the fastener.

[0027] The length of the inner ring teeth of sleeve 1 matches the length of the fastener teeth.

[0028] The handle 2 uses alternating smooth sections and knurled sections, with the diameter of the smooth sections being smaller than that of the knurled sections.

[0029] Example 1

[0030] The non-standard toothed fasteners are PPMM1 series plug toothed fasteners. The tooling includes a sleeve 1 and a handle 2, such as... Figure 2 As shown.

[0031] like Figure 1 As shown, the inner ring of sleeve 1 has teeth on its circumference that match the teeth of non-standard toothed fasteners, and the central angle corresponding to the toothed part of the inner ring of sleeve 1 is 76°.

[0032] The total length of sleeve 1 is 15±1mm, and the corresponding length of the inner ring teeth is 5±0.5mm. The inner ring at the front end of sleeve 1 is provided with a guide hole C0.5. The tooth profile of the inner ring teeth of sleeve 1 is straight-knotted m0.2 GB / T6403.3-1986.

[0033] The outer wall of the end where the sleeve 1 connects to the handle 2 is provided with a welded chamfer C1.

[0034] like Figure 2 As shown, the length of handle 2 is 157±5mm. Handle 2 uses alternating smooth sections and knurled sections, and the diameter of the smooth section is smaller than the diameter of the knurled section.

[0035] The tooling of this utility model is fitted onto the toothed fastener of the RPMM1 series plug for rotational operation.

Claims

1. A tooling for non-standard toothed fasteners, characterized in that, Includes a sleeve (1) and a handle (2). The inner diameter of the sleeve (1) is larger than the outer diameter of the non-standard toothed fastener. The inner circumference of the sleeve (1) is provided with teeth that match the teeth of the non-standard toothed fastener. The tooth height of the inner ring teeth is 70-80% of the tooth height of the outer teeth of the fastener.

2. The tooling according to claim 1, characterized in that, The central angle corresponding to the inner ring tooth portion of the sleeve (1) is 76°.

3. The tooling according to claim 2, characterized in that, The length of the inner ring teeth of the sleeve (1) matches the length of the fastener teeth.

4. The tooling according to claim 3, characterized in that, The total length of the sleeve (1) is 15±1mm, and the length of the inner ring tooth is 5±0.5mm.

5. The tooling according to claim 4, characterized in that, The inner ring at the front end of the sleeve (1) is provided with a guide hole.

6. The tooling according to claim 1, characterized in that, The inner ring teeth of the sleeve (1) have straight grooves.

7. The tooling according to claim 1, characterized in that, The outer wall of the end where the sleeve (1) connects to the handle (2) is provided with a welded bevel.

8. The tooling according to claim 1, characterized in that, The length of the handle (2) is 157±5mm.

9. The tooling according to claim 8, characterized in that, The handle (2) is made of alternating smooth sections and knurled sections, and the diameter of the smooth section is smaller than the diameter of the knurled section.

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