A screw cold heading device and its cold heading process
A cold heading and screw technology, which is applied to bolts, threaded fasteners, connecting components, etc., can solve the problems of low production efficiency, high damage risk, and high cost, and achieve the effects of improving production efficiency, increasing screw strength, and reducing loss
Active Publication Date: 2016-08-17
BINKE AUTOMOBILE FASTENER KUNSHAN
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Problems solved by technology
[0007] The invention provides a screw cold heading device and its cold heading process to solve the problems of low production efficiency, high damage risk and high cost of the screw cold heading device and its cold heading process in the prior art
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[0038] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that all the drawings of the present invention are in simplified form and use inaccurate scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.
[0039] Screw cold heading device provided by the present invention, such as Figure 1 to Figure 3 As shown, it includes a feeding mechanism 100, a cutting mechanism 200, a transmission mechanism 300 and six molds 400, wherein,
[0040] The position of the feeding mechanism 100 corresponds to the position of the cutting mechanism 200; the transfer mechanism 300 moves and feeds materials between the feeding mechanism 100 and the six molds 400, preferably, the transfer mechanism 300 adopts a clip;
[0041...
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The invention relates to a screw cold heading device and a cold heading technology thereof. The device comprises a feeding mechanism, a shut off mechanism, a delivery mechanism and six moulds, wherein the feeding mechanism and the shut off mechanism correspond in position; the delivery mechanism movably feeds between the feeding mechanism and the six moulds; a first mould is used for forming a thread rolling bar, a second mould is used for preliminarily heading a large bar part, and a third mould is used for lifting the angle of the large bar part; a fourth mould is used for settling materials on a head and forming a chamfer at the tail end of the thread rolling end, a fifth mould is used for forming a small bar part and a head hexagon at the tail end of the thread rolling end, and a sixth mould is used for forming five groove faces and finely heading the hexagon and a flange surface. According to the screw cold heading device, work-pieces are subjected to cold heading through the six moulds, so that the machining processes can be omitted, raw materials can be saved and the working efficiency can be improved.
Description
technical field [0001] The invention relates to the technical field of molds, in particular to a screw cold heading device for connecting brake pedals and a cold heading process thereof. Background technique [0002] Generally, vehicles have a brake pedal assembly including a pedal arm and a pad for deceleration and parking. At present, the production process of screws used to connect brake pedals includes: cold heading, thread rolling, heat treatment, electroplating, and machining. Among them, cold heading is to use a cold heading machine to cold form the wire into a blank, and thread rolling is to rub special The heat treatment is to make the hardness of the screw reach HRC32~HRC39, the electroplating is to carry out special surface treatment and improve the anti-corrosion performance of the parts, and the machining is to process the preliminarily formed screw with precision size, including the small rod at the end , The processing of the tooth rubbing rod and the flange ...
Claims
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IPC IPC(8): B21K1/44
Inventor 罗从启狄志朋李经宝
Owner BINKE AUTOMOBILE FASTENER KUNSHAN