CN102000946A

CN102000946A - Nut manufacturing process

Info

Publication number: CN102000946A
Application number: CN 201010506124
Authority: CN
Inventors: 蔡建华
Original assignee: SUZHOU JINRI HARDWARE MACHINERY CO Ltd
Current assignee: SUZHOU JINRI HARDWARE MACHINERY CO Ltd
Priority date: 2010-10-14
Filing date: 2010-10-14
Publication date: 2011-04-06

Abstract

The invention discloses a nut manufacturing process, which is characterized by comprising the following steps of: cold-drawing carbon construction steel serving as a raw material to obtain required finished wires; performing cold heading and extrusion molding; threading by using a method for manufacturing threads of nuts according to a principle that workpieces rotate and move relative to a tool, and are enforced to move a certain routine distance relative to axes of the workpieces; and cleaning, electro-plating and packaging. In the nut manufacturing process, during threading, the workpieces rotate and move to the tool for manufacturing the threads; and the process realizes flexible vertical threading, ensures reasonable structure, safe and reliable operation, high efficiency and low labor intensity, and avoids problems of screw tap breakage, thread inclination and the like.

Description

A kind of manufacturing process of nut

Technical field

The invention belongs to the hardware ﹠ tools technical field, especially a kind of manufacturing process of nut.

Background technology

Component of machine adopts nut to be connected and fixed usually, and the processing of nut thread adopts the tapping of tapping machine to form usually.Existing traditional tapping technology all is that the vibrating disk vibration will be expected ordering in a certain order, arrives geometrical clamp by guide slide and clamps, and workpiece is motionless, and screw tap rotates and moves the tapping of advancing and retreat repeatedly to the workpiece direction, unclamps chuck at last and will expect to discharge.But exist following shortcoming: the first, owing to varying in size of workpiece, the equal factor of angle causes the tapping machine to be difficult to location processing; The second, during manual or automatic tapping, the row of having cuts row and does not go out to be wrapped in to cause on the screw tap problems such as screw tap fracture and screw thread inclination, and efficient is low, and workpiece quality is poor; The 3rd,, fast tapping effective in order to carry out before tapping, generally all will be given screw tap head apply oil, and prior art is before tapping, after craft is dipped in oil to screw tap, and tapping again, labour intensity is big, and efficient is low.

Summary of the invention

In order to overcome above defective, the technical problem to be solved in the present invention is: the manufacturing process that proposes a kind of nut that workpiece rotates and moves to screw tap when tapping, this technology realizes flexibly vertical tapping, rational in infrastructure, handling safety, reliable, the efficient height, labour intensity is low, and has avoided problems such as screw tap fracture, screw thread inclination.

The technical solution adopted in the present invention is: a kind of manufacturing process of nut, concrete steps are as follows: be raw material with the structural carbon steel, through the cold-drawn backguy, obtain required product line, the cold-heading extrusion modling, utilizing workpiece to move, the method tapping of forcing workpiece to move the principle manufacturing nut thread of certain helical pitch preface distance, cleaning at last, electroplating processes and packing relative to workpiece spindle relative to the instrument rotation; Wherein tapping step is:

(1) will expect ordering by vibrating disk;

(2) enter slideway and arrive the precalculated position;

(3) mechanical arm pushes material in the main shaft chuck;

(4) main shaft clamps automatically;

(5) the relative instrument rotation of workpiece, the persuader machining screw.

According to another preferred embodiment, a kind of manufacturing process of nut comprises that further the described workpiece that utilizes moves relative to the instrument rotation, force workpiece to move the method for the principle manufacturing nut thread of certain helical pitch preface distance relative to workpiece spindle, be to start earlier main shaft just changeing and move to tool direction simultaneously, start reversal switch after arriving desired depth, main shaft reverses and to the mobile release instrument of opposite direction, will expect to release main shaft simultaneously.

According to another preferred embodiment, a kind of manufacturing process of nut comprises that further described instrument is a screw tap.

According to another preferred embodiment, a kind of manufacturing process of nut further comprises the adjusting limit switch is set in the described instrument.

The invention has the beneficial effects as follows:

1, the present invention proposes a kind of manufacturing process of nut, utilizing workpiece to move relative to the instrument rotation, force workpiece relative to the method tapping that workpiece spindle moves the principle manufacturing nut thread of certain helical pitch preface distance, solved the screw tap fracture that occurs in traditional tapping technology, problems such as screw thread inclination.

2, the manufacturing process of nut of the present invention, flexibly vertical tapping, rational in infrastructure, handling safety, reliably, the efficient height, labour intensity is low, cost reduces, and parameter comparison before and after improving: the life-span of improving previous screw tap, product percent of pass was about 93% greatly about 30000; The life-span of improving a back screw tap, product percent of pass surpassed 96% more than 50000.According to 10 machines, every day, every 9000 of processing were calculated, and only cost of one month of screw tap is just saved 2500 yuan at least.

Description of drawings

Fig. 1 is the process chart of the preferred embodiments of the present invention.

Fig. 2 is the tapping process chart of the preferred embodiments of the present invention.

The specific embodiment

The present invention is further detailed explanation with preferred embodiment in conjunction with the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.

Referring to Fig. 1, a kind of manufacturing process of nut, concrete steps are as follows: be raw material with the structural carbon steel, through the cold-drawn backguy, obtain required product line, the cold-heading extrusion modling is utilizing workpiece to move relative to the instrument rotation, the method tapping of forcing workpiece to move the principle manufacturing nut thread of certain helical pitch preface distance relative to workpiece spindle, cleaning at last, electroplating processes and packing;

Referring to Fig. 2, the workpiece that utilizes moves relative to the instrument rotation in the present embodiment, force workpiece to move the method for the principle manufacturing nut thread of certain helical pitch preface distance relative to workpiece spindle, be to start main shaft just changeing and move to tool direction simultaneously, start reversal switch after arriving desired depth, main shaft reverses and to the mobile release instrument of opposite direction, will expect simultaneously to release main shaft, enters next program cycle.Used instrument is a screw tap, and the adjusting limit switch is set in the screw tap, regulates the degree of depth that workpiece is arrived to the tool direction motion.

Wherein tapping step is:

(1) will expect ordering by vibrating disk;

(2) enter slideway and arrive the precalculated position;

(3) mechanical arm pushes material in the main shaft chuck;

(4) main shaft clamps automatically;

Manufacture method based on the screw thread of traditional nut will expect the vibrating disk vibration to sort in a certain order, arriving geometrical clamp by guide slide clamps, workpiece is motionless, and screw tap rotates and moves the tapping of advancing and retreat repeatedly to the workpiece direction, unclamps chuck at last and will expect to discharge.But exist because the varying in size of workpiece, the equal factor of angle causes the tapping machine to be difficult to location processing; During manual or automatic tapping, the row of having cuts row and does not go out to be wrapped in to cause on the screw tap problems such as screw tap fracture and screw thread inclination, and efficient is low, and workpiece quality is poor.

The manufacturing process of a kind of nut of the present invention, utilizing workpiece to move relative to the instrument rotation, force workpiece relative to the method tapping that workpiece spindle moves the principle manufacturing nut thread of certain helical pitch preface distance, solved the screw tap fracture that occurs in traditional tapping technology, problems such as screw thread inclination.The flexibly vertical tapping of the present invention, rational in infrastructure, handling safety, reliable, the efficient height, labour intensity is low, and cost reduces, and parameter comparison before and after improving: the life-span of improving previous screw tap, product percent of pass was about 93% greatly about 30000; The life-span of improving a back screw tap, product percent of pass surpassed 96% more than 50000.According to 10 machines, every day, every 9000 of processing were calculated, and only cost of one month of screw tap is just saved 2500 yuan at least.

Therefore application of the present invention can produce great economic benefit and social benefit, helps social development, has both improved effect, can alleviate working strength of workers again, benefits the nation and the people, and achieves many things at one stroke.

With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must determine its technical scope according to the claim scope.

Claims

1. the manufacturing process of a nut, it is characterized in that concrete steps are as follows: be raw material with the structural carbon steel, through the cold-drawn backguy, obtain required product line, the cold-heading extrusion modling, utilizing workpiece to move, the method tapping of forcing workpiece to move the principle manufacturing nut thread of certain helical pitch preface distance, cleaning at last, electroplating processes and packing relative to workpiece spindle relative to the instrument rotation; Wherein tapping step is:

(1) will expect ordering by vibrating disk;

(2) enter slideway and arrive the precalculated position;

(3) mechanical arm pushes material in the main shaft chuck;

(4) main shaft clamps automatically;

2. the manufacturing process of a kind of nut according to claim 1, it is characterized in that the described workpiece that utilizes moves relative to the instrument rotation, force workpiece to move the method for the principle manufacturing nut thread of certain helical pitch preface distance relative to workpiece spindle, be to start earlier main shaft just changeing and move to tool direction simultaneously, start reversal switch after arriving desired depth, main shaft reverses and to the mobile release instrument of opposite direction, will expect to release main shaft simultaneously.

3. the manufacturing process of a kind of nut according to claim 1 is characterized in that described instrument is a screw tap.

4. according to the manufacturing process of claim 1 or 3 described a kind of nuts, it is characterized in that being provided with in the described instrument adjusting limit switch.