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Drilling die for double-lug supporting plate nut installation holes

A pallet nut and mounting hole technology, applied in the field of tooling and fixtures, can solve problems such as inability to change

Inactive Publication Date: 2017-10-03
HARBIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The 3D structure of the existing positioning pin and its main structure are shown in Figure 4 , its positioning part is a cylindrical structure, the effective size and for positioning the diameter of the cylindrical surface, which cannot be changed

Method used

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  • Drilling die for double-lug supporting plate nut installation holes
  • Drilling die for double-lug supporting plate nut installation holes
  • Drilling die for double-lug supporting plate nut installation holes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The distance B between the rivet holes of the supporting plate nuts of the model HB1-808M4 and the model HB1-808M5 is 8mm, and the diameter of the rivet holes is The nut hole sizes are M4 and M5 respectively. The following same set of double-ear bracket nut mounting holes can be used to drill the mold (such as Figure 7 ), drill holes for rivet nuts on the product.

[0026] Table 1 Dimensions of HB1-808M4 / M5 Mounting Hole Drilling Die

[0027]

Embodiment 2

[0029] The distance B between the rivet holes of the supporting plate nuts of models HB1-818FA-M5 and HB1-818GD-M5 is 10mm, and the diameter of the rivet holes is The nut hole sizes are M4 and M5 respectively. The following same set of double-ear bracket nut mounting holes can be used to drill the mold (such as Figure 8 ), drill holes for rivet nuts on the product.

[0030] Table 2 Dimensions of HB1-818FA / GD-M5 Mounting Hole Drilling Die

[0031]

Embodiment 3

[0033] The distance B between the rivet holes of the supporting plate nuts of models HB1-804LA-M4, HB1-804LA-M5, HB1-804TA-M4 and HB1-804TA-M5 is 8mm, and the diameter of the rivet holes is The nut hole sizes are M4, M5, M4 and M5 respectively. The following same set of double-ear bracket nut mounting holes can be used to drill the mold (such as Figure 9 ), drill holes for rivet nuts on the product.

[0034] Table 3 Dimensions of HB1-804LA-M4 / M5 and HB1-804TA-M4 / M5 Mounting Hole Drilling Dies

[0035]

[0036]

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PUM

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Abstract

The invention provides a drilling mold for mounting holes of double-ear bracket nuts, which is characterized in that it includes a drilling mold (1), a positioning pin (2), a spring (3) and a nut (4), and the drilling mold (1) is Set the drill sleeve hole and the guide boss (A), the guide boss (A) has a positioning pin installation hole, the upper part of the inner wall of the positioning pin installation hole is provided with a first step surface (B), and the positioning pin (2) The end of the straight rod is provided with threads, the second end of the positioning pin (2) is provided with a conical boss portion (A), the middle section of the positioning pin (2) is provided with a second stepped surface (C), and the positioning pin mounting hole is connected with the positioning pin ( 2) Clearance fit at the largest diameter, the positioning pin (2) is inserted into the mounting hole of the positioning pin, the straight rod at the first end passes through the small hole above the first step surface (B) and is fixed by the nut (4), the cone The boss part (A) is inserted into the product positioning hole, and the spring (3) is tensionedly arranged between the first stepped surface (B) and the second stepped surface (C).

Description

technical field [0001] The invention relates to the technical field of fixtures. Background technique [0002] The structure of ordinary double-ear bracket nut is as follows: figure 1 , process installation process such as figure 2 . The existing double-ear bracket nut mounting hole drilling mold is mainly used to locate the hole position of the bracket nut hole, and to drill the bracket nut rivet hole on the product. [0003] The existing commonly used pallet nut drilling mold forms are as follows: image 3 , mainly consists of drilling template (mold body and drill sleeve), positioning pin and handle. When in use, insert the stepped pin into the original supporting nut nut hole of the product to position the drilling jig, and the drill gun drills the supporting nut mounting hole on the product through the drill sleeve hole on the drilling jig. The distance between two drill holes on the drilling template is 2B and the distance between the drill hole and the stepped p...

Claims

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Application Information

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IPC IPC(8): B23B47/28
CPCB23B47/28
Inventor 徐斯斯周超华吕耀鹏刘新鹏何丽红
Owner HARBIN