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Manufucturing method of notch wheel having 90-180 teeth and notch wheel made by said method

A manufacturing method, ratchet technology, applied in the field of mechanical parts, can solve problems such as insufficient tooth depth, insufficient torque, slow speed, etc., and achieve the effect of simple and convenient manufacturing method and good meshing performance

Inactive Publication Date: 2008-07-02
谢智庆
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Problems solved by technology

[0007] In this way, the precision of the ratchet produced is not high, so it is only suitable for ratchets with a low number of teeth. For ratchets with more than 90 teeth, there will be problems of insufficient tooth depth and insufficient torque due to low precision, which is prone to collapse. tooth
[0008] Second, milling cutter manufacturing process: This method is to use a milling cutter to cut one tooth by one tooth, but its speed is slow, so it does not meet the cost requirements, and the most important point is that it is very easy to cause a problem when it is used for a ratchet with a high number of teeth. The small tolerance of each single tooth, continuous cutting and continuous accumulation of small tolerances, resulting in the final milling to the last tooth, the formation of a half-tooth or one-tooth tolerance, and can not really achieve a ratchet with 90 or more teeth

Method used

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  • Manufucturing method of notch wheel having 90-180 teeth and notch wheel made by said method
  • Manufucturing method of notch wheel having 90-180 teeth and notch wheel made by said method
  • Manufucturing method of notch wheel having 90-180 teeth and notch wheel made by said method

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Embodiment Construction

[0041] The specific manufacturing method, features and effects according to the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0042] The present invention has a manufacturing method of 90 to 180 tooth ratchet, such as figure 2 As shown, it includes the following main steps:

[0043] ① Forging, using forging technology to forge the rough body 10 of the ratchet, such as image 3 shown;

[0044] ②Annealing and spheroidizing, performing at least one annealing and spheroidizing treatment on the rough forged ratchet body to obtain a fine ratchet body. The purpose of this step is to eliminate the stress caused by forging and strengthen its structural stability;

[0045] ③Turning processing, the ratchet body fine embryo is subjected to fine turning processing to obtain the ratchet wheel body secondary fine embryo 12;

[0046] ④Grinding process, grinding the secondary fine blank of the ratchet body after...

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Abstract

A technology for manufacturing notch wheel with (90-180)-teeth includes such steps as forging, annealing for spheroidizing, turning, grinding, rolling, heat treating and surface treating. The resultant ratchet wheel has 90-120 high-precision teeth, resulting in high torque and high engaging precision.

Description

technical field [0001] The invention relates to a mechanical part, in particular to a method for manufacturing a ratchet with 90 to 180 teeth and the ratchet produced therefrom. Background technique [0002] The current universal ratchet wrench 1 can be said to be one of the most commonly used hand tools in the world, such as figure 1 Shown, yet the research and invention of ratchet wrench 1 can be said to be quite a lot, no matter it is unidirectional action or bidirectional action it all has many users. [0003] It can be found that the number of peripheral teeth of the ratchet 1 ′ in all R&D inventions has a certain limit, from 36 teeth in the past to 72 teeth today, but the number of peripheral teeth will have a great impact on the structure of the ratchet wrench 1 as a whole. Because the more the number of teeth, the better the meshing performance, but the precision control is more precise, and there are indeed 72+ teeth in the workshop, which means that the number of ...

Claims

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Application Information

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IPC IPC(8): B23P15/14B23P17/00B21H5/02
Inventor 谢智庆
Owner 谢智庆
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