A machining tool for a directional machine housing through hole

By incorporating replaceable tool holders, multi-stage guide holes, and water outlets into the machining tools for the steering gear housing, the problems of inconvenient tool replacement and unstable drilling are solved, thereby improving machining efficiency and stability and enhancing cooling performance.

CN224333494UActive Publication Date: 2026-06-09FOSHAN DIAMOND AUTO PARTS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN DIAMOND AUTO PARTS
Filing Date
2025-06-11
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing steering gear housing machining tools are inconvenient to replace, and are prone to vibration during drilling, affecting stability and efficiency.

Method used

Design a machining tool with a small through-hole cutting edge at the front end, equipped with a replaceable tool holder and fasteners, combined with multi-stage guide holes and water outlets to enhance stability and cooling efficiency, and with a grinding layer on the cutting edge and tool holder to remove burrs.

Benefits of technology

It enables quick and convenient tool changing, enhances drilling stability and cooling efficiency, reduces high-temperature deformation and dust generation, and improves processing efficiency and practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses a machining tool for through holes in steering gear housings, belonging to the field of steering gear housing through hole machining technology. It includes a tool body, a guide, a flow guide, a tool changing mechanism, and a grinding mechanism. The tool body consists of a cutting edge and a tool holder, with one end being the cutting edge and the other end being the tool holder. This application features a novel design and ingenious device. By setting a cutting edge with a smaller through hole at the front end of the tool, it drills smaller through holes inside the steering gear housing. The tool holder is fitted and locked onto the tool surface using fasteners (e.g., screws), allowing for flexible replacement to accommodate different steering gear sizes and create through holes of varying dimensions. The replacement method is quick and convenient, improving the efficiency of changing different tool holders and enabling flexible drilling of through holes in steering gear housings of different sizes, greatly enhancing the practicality of the device.
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Description

Technical Field

[0001] This application relates to the field of through-hole machining technology for steering gear housings, and more particularly to a machining tool for through-holes in steering gear housings. Background Technology

[0002] The steering gear is the core component of a vehicle's steering system. It is responsible for converting the rotation of the steering wheel into the steering action of the wheels, directly affecting driving feel and safety.

[0003] Both sides of the existing steering gear housing need to be drilled to create through holes of different sizes according to the different sizes of steering gears, and at the same time remove burrs in the through holes of the steering gear housing after casting.

[0004] However, when different sizes of steering gear housings are required, the entire tool needs to be removed from the motor output, making the replacement method inconvenient. At the same time, when drilling deep through holes inside the housing, the tool needs to be moved and rotated at the same time. Since the tool is subjected to forces from inside the housing, it is easy to cause vibration of the tool during the moving and drilling process, affecting the stability of the tool drilling.

[0005] Therefore, this application proposes a cutting tool for machining through holes in steering gear housings. Utility Model Content

[0006] This application proposes a machining tool for through holes in steering gear housings to solve the problems mentioned in the background art. By setting a cutting edge with a smaller through hole at the front end of the tool, it can drill smaller through holes in the steering gear housing. The tool holder is fitted and locked to the surface of the tool by fasteners (such as screws), which allows for flexible replacement to adapt to different steering gear sizes and to drill through holes of different sizes. The replacement method is quick and convenient, improving the efficiency of replacing different tool holders and flexibly drilling through holes of different sizes in steering gear housings, greatly enhancing the practicality of the device.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] A machining tool for a through hole in a steering gear housing includes a tool body, a guide, a flow guide, a tool changing mechanism, and a grinding mechanism. The tool body consists of a cutting edge and a tool holder, with one end being the cutting edge and the other end being the tool holder. The guide and flow guide are both disposed on the cutting edge of the tool body. The tool changing mechanism is disposed at one end of the cutting edge and contacts one end of the tool holder.

[0009] In a preferred embodiment, the tool changing mechanism includes a tool sleeve, a mounting hole, and a threaded hole. The tool sleeve is mounted on one end of the cutting edge of the tool body, and one end of the tool sleeve contacts one end of the tool holder.

[0010] The quick and convenient tool holder replacement method improves the efficiency of changing different tool holders and allows for flexible drilling of through holes in steering gear housings of different sizes, thereby enhancing the practicality of the device.

[0011] In a preferred embodiment, the tool holder has multiple mounting holes, and the cutting edge has multiple threaded holes corresponding to the mounting holes. The tool holder is fitted and locked onto the surface of the tool body by fasteners.

[0012] By fitting and locking the tool holder onto the surface of the tool with fasteners (such as screws), it can be flexibly replaced to accommodate different sizes of through holes for different orientation machines, thereby improving the practicality of the device.

[0013] In one preferred embodiment, the guide includes guide strip holes, and the cutting edge surface of the cutter body has multiple guide strip holes;

[0014] By creating multiple multi-stage guide strip holes on the surface of the cutting tool, the increased multi-stage guide components provide better stability for the tool's movement during drilling, enhancing the tool's drilling stability and thus improving the device's practicality.

[0015] In a preferred embodiment, the guide includes a water outlet, and multiple water outlets are formed on the surfaces of the blade and the blade sheath;

[0016] By providing multiple water outlets on the surfaces of the cutting edge and the tool sleeve corresponding to the through holes of the tool, the cooling water can be easily discharged from the tool, improving the cooling efficiency of the tool during drilling. This effectively reduces the deformation of the steering gear housing due to the high temperature generated during drilling and significantly reduces the dust generated during drilling, thereby improving the practicality of the device.

[0017] In a preferred embodiment, the polishing mechanism includes a polishing layer, and the surfaces of both the blade and the sheath are provided with the polishing layer;

[0018] By setting a grinding layer on the cutting edge and the tool sleeve, the grinding layer is made of diamond abrasive, which can remove burrs in the through hole of the steering gear housing after casting during the drilling process, thereby improving the practicality of the device.

[0019] The beneficial effects of this application are:

[0020] 1. A machining tool for through holes in steering gear housings, by setting a cutting edge with a smaller through hole at the front end of the tool, to drill a smaller through hole in the steering gear housing, and by fitting and locking the tool sleeve on the surface of the tool with fasteners (such as screws), it can be flexibly replaced to adapt to different steering gear sizes to open through holes of different sizes. The replacement method is quick and convenient, improving the replacement efficiency of different tool sleeves, and flexibly drilling through holes of different sizes in steering gear housings, greatly improving the practicality of the device;

[0021] 2. This tool for machining through holes in a steering gear housing features multiple multi-stage guide strip holes on its surface. These multi-stage guides provide better stability during drilling, enhancing the tool's stability. Multiple water outlets are provided on the surfaces corresponding to the cutting edge and the tool sleeve of the through hole. These outlets facilitate the removal of cooling water from the tool, improving cooling efficiency during drilling. This effectively reduces deformation of the steering gear housing due to high temperatures during drilling and significantly reduces dust and debris generated during drilling, greatly enhancing the device's practicality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the device in this application;

[0023] Figure 2 This is a schematic diagram of the cutting tool body of the device in this application;

[0024] Figure 3 This is a schematic diagram of the tool holder of the device in this application;

[0025] Figure 4 This is a cross-sectional schematic diagram of the tool holder of the device in this application.

[0026] The following are the labels in the diagram: 1. Tool body; 11. Blade; 12. Tool holder; 2. Guide component; 21. Guide strip hole; 3. Flow guide component; 31. Water outlet; 4. Tool changing mechanism; 41. Tool sleeve; 42. Mounting hole; 43. Threaded hole; 5. Grinding mechanism; 51. Grinding layer. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0028] Reference Figure 1-4A machining tool for a through hole in a steering gear housing includes a tool body 1, a guide 2, a flow guide 3, a tool changing mechanism 4, and a grinding mechanism 5. The tool body 1 consists of a cutting edge 11 and a tool holder 12. One end of the tool body 1 is the cutting edge 11, and the other end is the tool holder 12. The guide 2 and the flow guide 3 are both disposed on the cutting edge 11 of the tool body 1. The tool changing mechanism 4 is disposed at one end of the cutting edge 11 and contacts one end of the tool holder 12.

[0029] Reference Figure 1-4 The tool changing mechanism 4 includes a tool holder 41, a mounting hole 42, and a threaded hole 43. The tool holder 41 is installed on one end of the cutting edge 11 of the tool body 1, and one end of the tool holder 41 is in contact with one end of the tool holder 12. The tool holder 41 can be replaced quickly and conveniently, which improves the replacement efficiency of different tool holders 41 and allows for flexible drilling of through holes in steering gear housings of different sizes, thereby improving the practicality of the device.

[0030] Reference Figure 1-4 The tool holder 41 has multiple mounting holes 42, and the cutting edge 11 has multiple threaded holes 43 corresponding to the mounting holes 42. The tool holder 41 is fitted and locked onto the surface of the tool body 1 by fasteners. By fitting and locking the tool holder 41 onto the surface of the tool by fasteners (such as screws), it can be flexibly replaced to adapt to the size of different steering gears and open through holes of different sizes, thereby improving the practicality of the device.

[0031] Reference Figure 1-2 The guide component 2 includes guide strip holes 21, and multiple guide strip holes 21 are opened on the surface of the cutting edge 11 of the tool body 1. By opening multiple multi-level guide strip holes 21 on the surface of the tool, the multi-level guide component 2 can provide better stability for the movement and drilling of the tool, enhance the stability of the movement and drilling of the tool, and thus improve the practicality of the device.

[0032] Reference Figure 1-4 The guide component 3 includes a water outlet 31, and multiple water outlets 31 are provided on the surfaces of the cutting edge 11 and the tool sleeve 41. By providing multiple water outlets on the surfaces of the cutting edge 11 and the tool sleeve 41 corresponding to the through holes of the cutting tool, the multiple water outlets 31 facilitate the discharge of cooling water into the cutting tool, improve the cooling efficiency of the cutting tool during drilling, effectively reduce the deformation of the steering gear housing due to the high temperature generated during drilling, and significantly reduce the dust generated during drilling, thereby improving the practicality of the device.

[0033] Reference Figure 1-4The grinding mechanism 5 includes a grinding layer 51. The surfaces of the cutting edge 11 and the tool holder 41 are both provided with the grinding layer 51. By providing the grinding layer 51 on the cutting edge 11 and the tool holder 41, and the grinding layer 51 is made of diamond abrasive, the burrs in the through hole of the steering gear housing after casting can be removed during the drilling process, thereby improving the practicality of the device.

[0034] Working principle: During operation, the cutting edge 11 at the front end of the tool body 1 enters both sides of the steering gear housing to begin drilling. By setting a smaller through hole at the front end of the cutting edge 11, smaller through holes within the steering gear housing are drilled. The tool sleeve 41 is fitted and locked onto the tool surface using fasteners (e.g., screws), allowing for flexible replacement to accommodate different steering gear sizes and create through holes of varying dimensions. The replacement method is quick and convenient, improving the efficiency of changing different tool sleeves 41 and enabling flexible drilling of through holes in steering gear housings of different sizes. Furthermore… Multiple multi-stage guide strip holes 21 are opened on the surface of the cutting tool. The increased multi-stage guide 2 can provide better stability for the movement and drilling of the cutting tool, thereby enhancing the stability of the movement and drilling of the cutting tool. Multiple water outlet holes are opened on the surface of the cutting tool corresponding to the through hole cutting edge 11 and the tool sleeve 41. The setting of multiple water outlets 31 facilitates the discharge of cooling water in the cutting tool, improves the cooling efficiency of the cutting tool during drilling, effectively reduces the deformation of the steering gear housing due to the high temperature generated during drilling, and can significantly reduce the dust generated during drilling.

[0035] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and the inventive concept of this application, should be included within the scope of protection of this application.

Claims

1. A machining tool for a through hole in a steering gear housing, comprising a tool body (1), a guide (2), a flow guide (3), a tool changing mechanism (4), and a grinding mechanism (5), characterized in that, The cutter body (1) is composed of a cutting edge (11) and a handle (12). One end of the cutter body (1) is the cutting edge (11) and the other end is the handle (12). The guide (2) and the flow guide (3) are both set on the cutting edge (11) of the cutter body (1). The tool changing mechanism (4) is set on one end of the cutting edge (11) and is in contact with one end of the handle (12).

2. The cutting tool for machining through holes in a steering gear housing according to claim 1, characterized in that, The tool changing mechanism (4) includes a tool sleeve (41), a mounting hole (42) and a threaded hole (43). The tool sleeve (41) is installed on one end of the cutting edge (11) of the tool body (1), and one end of the tool sleeve (41) is in contact with one end of the tool handle (12).

3. The machining tool for a through hole in a steering gear housing according to claim 2, characterized in that, The tool holder (41) has multiple mounting holes (42), and the blade (11) has multiple threaded holes (43) corresponding to the mounting holes (42). The tool holder (41) is fitted and locked onto the surface of the tool body (1) by fasteners.

4. The cutting tool for machining through holes in a steering gear housing according to claim 1, characterized in that, The guide member (2) includes a guide strip hole (21), and the blade (11) of the cutter body (1) has multiple guide strip holes (21) on its surface.

5. A machining tool for a through hole in a steering gear housing according to claim 1, characterized in that, The guide (3) includes a water outlet (31), and multiple water outlets (31) are provided on the surface of the blade (11) and the blade sheath (41).

6. A machining tool for a through hole in a steering gear housing according to claim 2, characterized in that, The grinding mechanism (5) includes a grinding layer (51), and the surfaces of the blade (11) and the sheath (41) are both provided with a grinding layer (51).