A kind of nut processing technology
A processing technology and nut technology, which is applied to nuts, threaded fasteners, connecting components, etc., can solve the problems of easy dripping of oil to the frame or the ground, ineffective collection of oil, and pollution of resources, etc. Good oil absorption, high toughness, and the effect of increasing the contact area
Active Publication Date: 2021-05-04
温州市瑞泰紧固件有限公司
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Problems solved by technology
[0004] The prior art solutions above have the following defects: the cold heading machine is a forging method that utilizes a mold to upset a metal bar at room temperature. It is a cold working process that releases a large amount of heat during the processing. During the working process of the machine, a large amount of lubricating oil is required to participate in the work
After the cold heading is completed, the formed nut body will be output from the cold heading machine by the conveying mechanism, but there is no deoiling process for the nut body after cold heading in the above nut processing technology, and the existing conveying mechanism is usually An inclined plate or a box with a leak hole cannot effectively collect the oil on the surface of the nut body output from the cold heading machine. The oil is easy to drip onto the frame or the ground when the nut body is transferred, causing pollution and Waste of resources, room for improvement
Method used
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[0046] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0047] This embodiment discloses a processing technology for nuts, such as figure 1 shown, including the following steps:
[0048] S1. Pickling: Soak the wire rod raw material in a hydrochloric acid solution with a concentration of 10-12% for 10-15 minutes, then wash it with water and dry it;
[0049] S2. Wire drawing: drawing the pickled wire through a wire drawing machine to form a linear blank with a predetermined diameter, and winding the linear blank into a coil;
[0050] S3. Spheroidizing annealing treatment: heat the blank to 730-740°C and keep it warm for 3-4 hours, then slowly cool it to between 650°C-700°C at a speed of less than 20°C / h, keep it for 4-5 hours, after being out of the furnace Natural cooling to room temperature;
[0051] S4. Cold heading forming: put the blank after spheroidizing and annealing into the cold heading machine body 1 (...
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The invention relates to the technical field of fastener processing, and discloses a nut processing technology, which includes pickling, wire drawing, spheroidizing annealing treatment, cold heading forming, deoiling treatment, tapping, cleaning, inspection and surface treatment steps ;The deoiling process is to put the nut body into the deoiling mechanism for deoiling. The deoiling mechanism includes the frame and the receiving bin installed on the rack, the transmission component and the oil absorption component. The receiving bin includes the discharge port and the cold heading The outlet of the machine is connected to the feed port, and a filter plate is respectively hinged on the two opposite side walls of the receiving bin, and a drive assembly that drives the two filter plates to open or close the outlet is installed on the receiving bin. There is an oil deflecting plate under the frame, and a push cylinder connected with the oil deflecting plate is installed on the frame; one end of the transmission component is located below the discharge port, and the oil suction component is located on the upper side of the transmission component. The invention has the effect of effectively collecting the oil on the surface of the nut body after cold heading, without causing pollution and waste of resources.
Description
technical field [0001] The invention relates to the technical field of fastener processing, in particular to a nut processing technology. Background technique [0002] A nut is a part that is screwed together with a bolt or a screw for fastening. It is used for threaded connection with a stud or a bolt. It is often used in various precision parts, chassis, cabinets, and automotive components. According to the material The different types can be divided into several types such as carbon steel, stainless steel, and non-ferrous metals. [0003] In the prior art, the Chinese patent with the publication number CN104308459A discloses a nut processing technology, which includes the following steps: 1) cold heading the raw material with a cold heading machine, so that the corners of the nut body are full and consistent; The upsetting machine punches out a through hole in the center of the nut body; 3) Use a tapping machine to process an internal thread in the center hole of the nut...
Claims
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IPC IPC(8): B23P15/00F16B37/00
CPCB23P15/00F16B37/00
Inventor方宏展陈鳌李丹林爱华陈淑丽
Owner温州市瑞泰紧固件有限公司