一种长通孔内螺纹加工装置

CN224508626UActive Publication Date: 2026-07-17NINGBO XIASHA GEARS

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: NINGBO XIASHA GEARS
Filing Date: 2025-07-07
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

In the existing technology, the internal thread machining tools for long through-hole parts cannot penetrate deeply, resulting in poor machining accuracy and long processing time, especially in long through-hole parts where efficient machining is difficult.

Method used

A long through hole internal thread machining device is adopted, which clamps the long shaft machining part at both ends, passes through the long through hole part and rotates it to perform internal thread machining. The internal thread machining is performed by using the hobbing area on the long shaft machining part, which improves coaxiality and machining efficiency.

Benefits of technology

It significantly improves the machining accuracy and efficiency of internal threads in long through-hole parts, and is especially suitable for long cylindrical parts, shortening the machining time.

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Abstract

一种长通孔内螺纹加工装置，包括相对设置的第一夹持单元和第二夹持单元，所述第一夹持单元和第二夹持单元可相对移动调整间距；所述第一夹持单元和第二夹持单元之间设有放置台，所述放置台用于放置长通孔零件；还包括长轴滚刀，工作时所述长轴加工件穿过长通孔零件上的通孔，且该长轴加工件的两端分别定位在第一夹持单元和第二夹持单元上；工作时所述长轴加工件转动和移动实现长通孔零件的内螺纹加工。本申请中的装置采用了长轴加工件贯穿到长通孔零件中，并且两端夹持转动来加工的方式，转动时同轴度更高，加工精度更高，这样可以显著提高内螺纹加工效率，节约时间。

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Claims

1. A long hole tap device characterized by comprising: It includes a first clamping unit (2) and a second clamping unit (3) arranged opposite to each other, and the first clamping unit (2) and the second clamping unit (3) can be moved relative to each other to adjust the distance between them; A placement platform (4) is provided between the first clamping unit (2) and the second clamping unit (3), and the placement platform (4) is used to place the long through hole part (6). It also includes a long shaft machining part, which passes through the through hole on the long through hole part (6) during operation, and the two ends of the long shaft machining part are respectively positioned on the first clamping unit (2) and the second clamping unit (3); During operation, the long shaft machining part rotates and moves to realize the internal thread machining of the long through hole part (6).

2. A long hole internal thread tapping device according to claim 1, wherein The first clamping unit (2) and the second clamping unit (3) are respectively placed on their respective mobile platforms to achieve movement.

3. The long hole thread tapping device according to claim 1, wherein The first clamping unit (2) is provided with a first rotating shaft (22) driven by a motor, and one end of the long shaft machining part is fixed on the first rotating shaft (22); the second clamping unit (3) is provided with a second rotating shaft (32) driven by a motor, and the other end of the long shaft machining part is detachably positioned on the second rotating shaft (32).

4. A long hole internal thread tapping device according to claim 3, wherein The second rotating shaft (32) has a positioning sleeve (321) on its insertion port.

5. The long hole thread tapping device according to claim 1, wherein The placement platform (4) is located on its corresponding mobile platform and is movable.

6. A long hole internal thread tapping device according to claim 1, wherein The long shaft machining part has an insertion part (53) at both ends, which is inserted into the assembly holes on the first clamping unit (2) and the second clamping unit (3), respectively.

7. A long hole tapping device according to any one of claims 1 to 6, characterized in that The long shaft machining part is a long shaft hob (5), and the surface of the long shaft hob (5) is provided with a hob area (51) for machining internal threads. The axial length of the hob area (51) is greater than half the axial length of the internal thread area to be machined in the long through hole part (6).

8. A long hole tap according to claim 7, wherein The axial length of the hobbing cutter area (51) is 0.7 to 1.2 times the axial length of the internal thread area to be machined.

9. A long hole tapping device according to any one of claims 1 to 6, wherein The long shaft machining part is a long shaft grinding wheel (7). The long shaft grinding wheel (7) is provided with several grinding wheel rings (71) or spiral grinding wheels (77) for machining internal threads. The long shaft grinding wheel (7) is provided with insertion parts at both ends.