Special thread smoothening tool for internal thread of sector gear shaft
By designing a special thread-sliding tool for the internal thread of the sector gear shaft with a guide cylinder, the problem of low internal thread processing quality caused by traditional tools is solved, and higher quality internal thread processing and more convenient operation process are achieved.
Patent Information
- Application Number
- CN202421869690.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-05
AI Technical Summary
During the internal screw hole processing of sector gear shafts, traditional wire-passing tools lack guidance, resulting in frequent problems such as thread messy teeth, thread damage, and thread bottom hole surface not perpendicular after internal thread processing.
A dedicated internal threaded wire-sliding tool for sector gear shafts is designed, including a tap wrench, a tap and a guide barrel. The guide cylinder is a step shaft structure with positioning holes and sleeve holes. Through these structures, the wire tap is guided to ensure that it is concentric with the internal thread of the sector gear shaft.
Through the guide tube's guide to the wire tap, problems such as thread messy teeth, thread damage, and non-vertical thread hole surface after the internal thread processing are effectively reduced, the processing quality of the internal thread is improved, the operation process is simplified, and the working efficiency is improved.
Smart Images
Figure CN222902825U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of processing sector gear shafts, and more specifically, particularly belongs to a special thread-aligning tool for the internal thread of a sector gear shaft. Background Art
[0002] The sector gear shaft is one of the components of the steering gear of a motor vehicle. When processing the internal screw hole at the head end of the sector gear shaft, after completing the tapping process, the go / no-go gauge often cannot pass through the internal screw hole. The traditional solution is to use a tap wrench to operate the tap to process the internal thread, but this solution lacks a guide during the thread processing, which often leads to problems such as thread irregularities, thread damage, and non-vertical bottom hole surface of the thread after thread processing. Summary of the invention
[0003] The utility model aims to overcome the shortcomings of the above-mentioned traditional technology and provide a special thread-threading tool for the internal thread of a sector gear shaft, so as to improve the thread-threading quality of the internal thread of the sector gear shaft.
[0004] The utility model provides a special thread-guiding tool for the internal thread of a sector gear shaft, comprising a tap wrench and a tap, and is characterized in that it also comprises a guide cylinder; the guide cylinder is a stepped shaft structure; the diameter of the small head end of the guide cylinder is larger than the diameter of the tap, and is provided with a positioning hole matched with the tap; the diameter of the large head end of the guide cylinder is larger than the diameter of the head end of the sector gear shaft with the internal thread, and is provided with a sleeve hole matched with the head end of the sector gear shaft with the internal thread; the sleeve hole is a blind hole structure at the large head end of the guide cylinder; the positioning hole is a through hole that penetrates the sleeve hole; the positioning hole and the sleeve hole are concentric.
[0005] The utility model provides a special thread-straightening tool for the internal thread of a sector gear shaft, which is designed with a guide cylinder, and the guide cylinder is a stepped shaft structure. The small head end of the guide cylinder is provided with a positioning hole matched with a tap, and the large head end of the guide cylinder is provided with a sleeve hole matched with the head end of the sector gear shaft provided with an internal thread, and the positioning hole and the sleeve hole are connected and concentric. When in use, the tap is passed through the guide cylinder through the positioning hole, and the handle end of the tap is fixed on the tap wrench, and then the guide cylinder is sleeved on the head end of the sector gear shaft provided with an internal thread through the sleeve hole, and then the tap is rotated by the tap wrench to process the internal thread of the sector gear shaft. It can be seen that the utility model plays a guiding role on the tap through the guide cylinder, solves the problems of thread disorder, thread damage and non-vertical bottom hole surface of the thread after the internal thread is threaded due to lack of guidance in the traditional scheme, and the processing quality of the internal thread is effectively improved compared with the traditional scheme, and the utility model is simple and convenient to operate, and the work efficiency is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0006] Figure 1 It is a schematic diagram of the application structure of the utility model;
[0007] Figure 2 The utility model is Figure 1 The derived planar structure diagram;
[0008] Figure 3 It is a structural schematic diagram of the utility model.
[0009] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:
[0010] 1. Tap wrench; 2. Tap; 3. Guide cylinder; 301. Positioning hole; 302. Sleeve hole; 4. Fan gear shaft. DETAILED DESCRIPTION
[0011] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0012] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0013] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0014] The utility model provides a special threading tool for the internal thread of a sector gear shaft, comprising a tap wrench 1, a tap 2 and a guide cylinder 3. The guide cylinder 3 is a stepped shaft structure. The diameter of the small head end of the guide cylinder 3 is larger than the diameter of the tap 2, and a positioning hole 301 matching with the tap 2 is provided. The diameter of the large head end of the guide cylinder 3 is larger than the diameter of the head end of the sector gear shaft 4 with the internal thread, and a sleeve hole 302 matching with the head end of the sector gear shaft 4 with the internal thread is provided. The sleeve hole 302 is a blind hole structure at the large head end of the guide cylinder 3; the positioning hole 301 is a through hole penetrating the sleeve hole 302; the positioning hole 301 and the sleeve hole 302 are concentric.
[0015] As can be seen from the above description and the accompanying drawings, the guide cylinder 3 plays a guiding and positioning role for the tap 2. When the sleeve hole 302 of the guide cylinder 3 is sleeved on the head end of the sector gear shaft 4 with the internal thread, the sleeve hole 302 is concentric with the internal screw hole to be processed by the sector gear shaft 4, and the tap 2 is positioned through the positioning hole 301, which ensures the concentricity of the tap 2 and the internal thread to be processed by the sector gear shaft 4, effectively reducing the probability of problems such as thread irregularity, thread damage and non-vertical bottom hole surface after threading, and improving the processing quality of the internal thread threading.
[0016] The specific usage and function of this embodiment are as follows:
[0017] The utility model requires manual operation. The operator passes the tap 2 through the positioning hole 301 through the guide cylinder 3, fixes the handle end of the tap 2 on the tap wrench 1, and then sleeves the guide cylinder 3 on the head end of the sector gear shaft 4 with the internal thread through the sleeve hole 302, then holds the sector gear shaft 4 with one hand, and uses the tap wrench 1 with the other hand to rotate the tap 2 to thread the internal thread of the sector gear shaft 4, and remove the internal thread burrs, irregular teeth, etc.
[0018] To sum up, compared with traditional solutions, the utility model effectively reduces the probability of problems such as thread irregularities, thread damage, and non-vertical bottom hole surface after the internal thread of the fan gear shaft is threaded, improves the processing quality of the internal thread, and the utility model is simple and convenient to operate, effectively improving work efficiency.
Claims
1. A special threading tool for the internal thread of a sector gear shaft, comprising a thread tapping wrench (1) and a thread tapping (2), characterized in that: The invention also comprises a guide cylinder (3); the guide cylinder (3) is a stepped shaft structure; the diameter of the small end of the guide cylinder (3) is larger than the diameter of the tap (2), and a positioning hole (301) matching with the tap (2) is provided; the diameter of the large end of the guide cylinder (3) is larger than the diameter of the head end of the sector gear shaft with an internal thread, and a sleeve hole (302) matching with the head end of the sector gear shaft with an internal thread is provided; the sleeve hole (302) is a blind hole structure at the large end of the guide cylinder (3); the positioning hole (301) is a through hole penetrating the sleeve hole (302); the positioning hole (301) and the sleeve hole (302) are concentric.