阅读说明：本技术 一种锉刀齿弯曲生产工艺 (File tooth bending production process ) 是由 刘辉胜 于 2021-10-20 设计创作，主要内容包括：本发明提供了一种锉刀齿弯曲生产工艺,属于锉刀生产技术领域,包括对毛坯进行冲柄形成锉坯,锉坯包括锉身和锉柄；对锉坯的端面进行磨光,使锉身平直；打磨锉身的楞边、去毛刺,并在锉身端面擦油,使用剁齿机对锉身进行剁齿,形成锉刀；加热锉刀至蓝色,并将锉刀放置于冲车的胎具上,锉刀位于胎具的胎具槽上方；在锉刀的齿面铺设铝垫,并在锉刀与铝垫之间撒滑石粉；启动冲床控制冲头作用于铝垫或者锉刀远离铝垫的端面上,并对锉刀进行压弧,将锉刀压入胎具的胎具槽中形成齿面向内凹陷或者向外突出的弯曲状锉刀。本发明提供的锉刀齿弯曲生产工艺,无需在曲面上进行锉齿,简化了操作步骤,提高了加工效率。(The invention provides a file tooth bending production process, which belongs to the technical field of file production and comprises the steps of punching a blank to form a file, wherein the file comprises a file body and a file handle; polishing the end surface of the file blank to ensure that the file body is straight; polishing the edge of the file body, removing burrs, wiping oil on the end face of the file body, and performing tooth chopping on the file body by using a tooth chopping machine to form a file; heating the file to blue, and placing the file on a mould of a punching machine, wherein the file is positioned above a mould groove of the mould; paving an aluminum pad on the tooth surface of the file, and scattering talcum powder between the file and the aluminum pad; and starting the punch to control the punch to act on the end surface of the aluminum pad or the end surface of the file far away from the aluminum pad, and pressing the file into an arc to press the file into a mould groove of the mould to form a curved file with a tooth surface sunken inwards or protruding outwards. According to the file tooth bending production process, the file teeth do not need to be filed on the curved surface, the operation steps are simplified, and the processing efficiency is improved.)

1. A production process for bending file teeth is characterized by comprising the following steps:

punching a blank to form a file, wherein the file comprises a file body and a file handle;

polishing the end surface of the file blank to ensure that the file body is straight;

polishing the edge of the file body, removing burrs, wiping oil on the end face of the file body, and performing tooth chopping on the file body by using a tooth chopping machine to form a file;

heating the file to blue, and placing the file on a mould of a punching machine, wherein the file is positioned above a mould groove of the mould;

paving an aluminum pad on the tooth surface of the file, and scattering talcum powder between the file and the aluminum pad;

and starting a punch press to control a punch to act on the aluminum pad or the end surface of the file far away from the aluminum pad, and pressing the file into an arc to press the file into a mould groove of the mould to form a curved file with a tooth surface sunken inwards or protruding outwards.

2. The process for producing a curved profile of a file tooth as claimed in claim 1 wherein the curved tooth surface is grit blasted after the curved profile file is formed.

3. The process for bending the teeth of the file as claimed in claim 1, wherein the fixture groove of the fixture is cleaned to remove the talc powder and the residue after the file is punched by the punch.

4. The process for producing curved teeth of a file as claimed in claim 1 wherein said file is truncated by placing said file on a flat surface with the tooth surface facing upward prior to heating said file.

5. The process of claim 1, wherein the aluminum pad has a width greater than that of the file body, and both sides of the aluminum pad are located outside the file body.

6. The process for bending the teeth of the file as claimed in claim 1, wherein when the teeth of the file are chopped, one end surface of the file is chopped, and the other end surface is smooth.

7. The process for bending the teeth of the file as claimed in claim 1, wherein the difference between the center line of the shank and the center line of the body is not greater than 0.03 mm.

8. The process for bending the teeth of the file as claimed in claim 1, wherein the difference between the center line of the shank and the center line of the body is not greater than 0.3mm when the blank is stamped to form the file.

Technical Field

The invention belongs to the technical field of file production, and particularly relates to a file tooth bending production process.

Background

The file is a polishing tool which is most widely applied in the traditional machining industry, and a plurality of fine insections are arranged on the surface of the file and used for filing the surface of a workpiece and performing micro-processing on the surface layers of metal, wood, leather and the like. In the machining field, a plurality of workpieces to be polished with certain cambered surfaces exist, and the curved surface file has great value in production for improving the polishing effect on the workpieces. At present, when a curved-surface file is produced, a file body is bent into an arc shape, and then teeth are chopped on the arc-shaped file body, so that the method is complex in operation, complex in steps and low in processing efficiency.

Disclosure of Invention

The invention aims to provide a file tooth bending production process to solve the technical problems of complex steps and low processing efficiency of processing a bent file in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: the file tooth bending production process comprises the following steps:

punching a blank to form a file, wherein the file comprises a file body and a file handle;

polishing the end surface of the file blank to ensure that the file body is straight;

polishing the edge of the file body, removing burrs, wiping oil on the end face of the file body, and performing tooth chopping on the file body by using a tooth chopping machine to form a file;

heating the file to blue, and placing the file on a mould of a punching machine, wherein the file is positioned above a mould groove of the mould;

paving an aluminum pad on the tooth surface of the file, and scattering talcum powder between the file and the aluminum pad;

and starting a punch press to control a punch to act on the aluminum pad or the end surface of the file far away from the aluminum pad, and pressing the file into an arc to press the file into a mould groove of the mould to form a curved file with a tooth surface sunken inwards or protruding outwards.

In one possible implementation, the curved tooth surface is grit blasted after the curved file is formed.

In a possible implementation manner, after the file is punched by using a punch press each time, the mold groove of the mold is cleaned, and the talcum powder and the residue in the mold groove are removed.

In one possible implementation, the file is truncated by placing it on a flat surface with the tooth surface facing upwards, before heating it.

In a possible implementation manner, the width of the aluminum pad is larger than that of the file body, and two side edges of the aluminum pad are positioned outside the file body.

In a possible implementation mode, when the file body is chopped, one end face of the file body is chopped, and the other end face of the file body is polished.

In one possible implementation, the difference between the central line of the file handle and the central line of the file body is not more than 0.03 mm.

In one possible implementation mode, when the blank is punched to form the file, the position difference between the central line of the file handle and the central line of the file body is not more than 0.3 mm.

The file tooth bending production process provided by the invention has the beneficial effects that: compared with the prior art, the file tooth bending production process has the advantages that during processing, firstly, a blank is subjected to handle punching operation to form a file blank which comprises a file body and a file handle, then, the end face of the file body is polished, the edge of the file body is polished, the file is deburred, and then the file blank is placed on a tooth chopping machine, and teeth are chopped on one end face of the file body, so that the file blank is changed into a file; then heating the file until the file body becomes blue, mounting the heated file on a mould of a punch press, covering the tooth surface of the file by using an aluminum pad, adding talcum powder between the aluminum pad and the tooth surface of the file, extruding a punch of the punch press on the end surface of the file of the aluminum pad far away from the aluminum pad to press an arc on the file, and enabling the file body to enter a mould groove of the mould to enable the file body to become a curved shape; by the mode, after the file is heated, the aluminum pad and the talcum powder are used for protecting the file teeth, the extrusion file body and the file teeth are inwards sunken or outwards protruded to form the curved file under the action of the punch press, the file teeth do not need to be filed on the curved surface, the operation steps are simplified, and the processing efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic view of a file according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a file according to an embodiment of the present invention;

FIG. 3 is a first schematic view illustrating a curved file according to an embodiment of the present invention;

fig. 4 is a second schematic structural view of the curved rasp according to the embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

100. filing; 110. filing; 120. a file handle; 130. filing teeth; 200. and (5) filing.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 4, a process for bending the teeth of the file 100 according to the present invention will now be described. A process for bending 100 teeth of a file comprises the steps of punching a blank to form a file 200, wherein the file 200 comprises a file body 110 and a file handle 120; polishing the end surface of the file blank 200 to make the file body 110 straight; polishing the edge of the file body 110, removing burrs, polishing oil on the end surface of the file body 110, and performing tooth cutting on the file body 110 by using a tooth cutting machine to form a file 100; heating the file 100 to blue, and placing the file 100 on a mould of a punching machine, wherein the file 100 is positioned above a mould groove of the mould; paving an aluminum pad on the tooth surface of the file 100, and scattering talcum powder between the file 100 and the aluminum pad; and starting a punch press to control the punch to act on the aluminum pad or the end surface of the file 100 far away from the aluminum pad, and pressing the file 100 into an arc to press the file 100 into a mould groove of the mould to form the curved file 100 with the tooth surface sunken inwards or protruding outwards.

Compared with the prior art, the process for bending 100 teeth of the file provided by the invention comprises the steps of firstly carrying out shank punching operation on a blank to form a file 200 comprising a file body 110 and a file handle 120, then polishing the end surface of the file body 110, polishing the edge of the file body 110, deburring, then placing the file 200 on a tooth cutting machine and cutting teeth on one end surface of the file body 110 to enable the file 200 to be changed into the file 100; then, the file 100 is heated until the file body 110 is blue, the heated file 100 is installed on a mould of a punch press, an aluminum pad is used for covering the surface of the file tooth 130, talcum powder is added between the aluminum pad and the surface of the file tooth 130, a punch of the punch press is used for extruding the end surface, away from the aluminum pad, of the file 100 of the aluminum pad to press the file 100 to form an arc, and the file body 110 enters a mould groove of the mould, so that the file body 110 is bent; in this way, after the rasp 100 is heated, the aluminum pad and the talc powder are used to protect the rasp teeth 130, and under the action of the punch, the extrusion rasp body 110 and the rasp teeth 130 are inwardly or outwardly protruded to form the curved rasp 100, so that the rasp teeth 130 do not need to be formed on a curved surface, thereby simplifying the operation steps and improving the processing efficiency.

When the rasp 100 is placed on the jig of the punch press, the rasp teeth 130 are directly mounted on the rasp teeth 130 while facing, and the punch of the punch press directly presses on the aluminum pad, so that the rasp teeth 130 form a concave shape; in another case, the file teeth 130 are placed facing each other, the aluminum pad is disposed below the file teeth 130, the punch of the punch presses the end surface of the file body 110 away from the file teeth 130, and the aluminum pad and the file teeth 130 enter the groove of the jig, so that the file teeth 130 protrude outward. The rasp teeth 130 are protected by the talc powder and the aluminum pad to prevent damage by foreign objects. When the talcum powder is scattered, a layer of talcum powder is scattered or spread on the file teeth 130 or the aluminum pad.

When the file 200 is polished, the following process flows or detailed operations are required: the end face of the file 100 is machined with a double-ended grinding machine. The file 100 after polishing should be flat and straight, and the surface should not change color and have no pits; the full decarburization is not allowed, the area of the semi-decarburization area is not more than the total area of the file body 110, and burrs cannot be formed on the plane; the difference between the central line of the rasp handle 120 and the central line of the rasp body 110 is not greater than.

In the processing of the file tooth 130 of the file 200, the following process flows or detailed operations are required: grinding arris → deburring → oil wiping → chopping teeth; grinding edges on four sides; only one side of the plane chopping tooth is chopped, and the side surface of the plane chopping tooth is not chopped; the tooth point is sharp, and the defects of eccentric cutter, disordered teeth, broken cutter, tooth cushion, heavy cutter, jumping teeth, edge curling and the like are avoided; the tooth front angle is 0 to-8 degrees; pitch offset: (S)_{Big (a)}-S_Small)/S_{Big (a)}Less than or equal to 10 percent; the tolerance of the insection is within 10mm +/-0.5.

In the processing of the file tooth 130 of the file 200, the following process flows or detailed operations are required: the insection faces upwards when the head is cut off; the truncated part is straight (vertical to the central line of the file body 110), no burr is needed, and the length after the truncation is ensured; when the arc is pressed and heated, the file 100 is heated until the file turns blue, and the file 100 is not allowed to turn red; when in arc pressing, the surface of the file 100 is padded with an aluminum pad, and a layer of talcum powder is scattered between the file 100 and the aluminum pad; arc pressing is carried out on the flushing car, and the tooth edge is not allowed to be damaged; brushing impurities such as talcum powder and the like in the groove of the mould by using a brush every time stamping is carried out; the smooth surface of the file 100 after arc pressing is not allowed to have a punch pit, and the file 100 is not allowed to have obvious distortion and deflection; after quenching, the hardness of the 100 tooth tips of the file is tested by using a special hardness plate HRC 55-57, and tooth breakage and slippage are avoided. The surface is silver gray after sand blasting, and no stripe or rust is required.

Referring to fig. 1 to 4, in the bending process of the file 100 according to the present invention, after the curved file 100 is formed, the curved tooth surface is sand-blasted, and in the bending process of the file 100 by using a punch, although the file 100 is protected by the aluminum pad and the talc powder, it is difficult to avoid the file 130 from being damaged partially, which results in the reduction of the filing capability of the file 130, and therefore, the file 130 is shot with a rapid sand flow; the teeth of the rasp 100 are restored to be sharp, and the rasping capability is ensured. The shooting direction of the sand flow is in fan-shaped swing in the sand blasting process, so that each file tooth 130 is impacted in multiple directions, sand blasting is performed by using various kinds of sand, and the file teeth 130 are sharper.

Referring to fig. 1 to 4, as a specific embodiment of the process for bending the teeth of the file 100 according to the present invention, after the file 100 is punched by a punch press each time, the mold groove of the mold is cleaned to remove talc powder and residues in the mold groove, and after the punch of the punch press presses the file 100 into the mold groove, a part of the talc powder or the residues falling from the file body 110 are left in the mold groove, so as to ensure that the next file 100 is not damaged and the teeth are not damaged. The high-pressure gas nozzle can be arranged on the punch and arranged on one side of the mould, and when the talcum powder and the residue in the mould groove are cleaned, the high-pressure gas nozzle is directly used, and the talcum powder and the residue are blown away by high-pressure gas.

Referring to fig. 1 to 4, in an embodiment of the process for bending the teeth of the file 100 according to the present invention, before heating the file 100, the file 100 is placed on a plane with the tooth surface facing upward, and the file 100 is truncated with the tooth grain facing upward, so as to ensure the length of the finished file 100, the file 100 needs to be truncated before bending, that is, the head of the file body 110 away from the handle 120 needs to be truncated. And when the rasp body 110 is cut, the rasp teeth 130 face upward, only the rasp teeth 130 contacted by the cutter are damaged during the cutting process, and the rasp teeth 130 at other parts are not affected.

Referring to fig. 1 to 4, in a specific embodiment of the process for bending the teeth of the file 100 according to the present invention, the width of the aluminum pad is greater than the width of the file body 110, and both sides of the aluminum pad are located outside the file body 110, when the aluminum pad is laid on the file teeth 130, since the width of the aluminum pad is greater than the width of the file body 110, both sides of the aluminum pad are respectively bent toward the side of the file body 110 away from the file teeth 130, and wrap the file body 110 in a semi-enclosed manner, and when the aluminum pad is pressed by a punch of a punch press or the end surface of the file 100 away from the aluminum pad, the aluminum pad cannot easily fall off from the file body 110.

Referring to fig. 1 to 4, as a specific embodiment of the bending production process of the file 100 provided by the present invention, when the file body 110 is chopped, one end surface of the file body 110 is chopped, the other end surface is a smooth surface, when the file body is chopped, one end surface is chopped, the other end surface is a smooth surface, and this way of chopping only one end surface is beneficial to the subsequent bending formation of the file body 110; particularly, in the case where the rasp teeth 130 are protruded, the punch of the punch presses the smooth surface of the rasp body 110, which is more stable and less likely to cause problems such as slipping, and in the case where the rasp teeth 130 are recessed, the smooth surface is similarly likely to be bent and deformed in the groove of the jig.

Referring to fig. 2 to 4, in the embodiment of the process for bending the teeth of the file 100 according to the present invention, the position difference between the central line of the file handle 120 and the central line of the file body 110 is not greater than 0.03mm, so as to ensure that the position relationship between the file handle 120 and the file body 110 is more precise, the position difference between the central lines of the file handle 120 and the file body 110 is not greater than 0.03mm, and the working personnel can more accurately operate the file body 110 and the file teeth 130 to perform the grinding operation by holding the file handle 120 by hand.

Referring to fig. 1, as a specific embodiment of the tooth bending process of the file 100 according to the present invention, when the blank is punched to form the file 200, the position difference between the center line of the file handle 120 and the center line of the file body 110 is not greater than 0.3mm, and when the blank is punched for the first time, the file 200 having the file body 110 and the file handle 120 is formed, and the position difference between the center line of the file handle 120 and the center line of the file body 110 is not greater than 0.3mm, so as to ensure that no large deviation exists between the file handle 120 and the file body 110, thereby facilitating the later-stage finishing of the file handle 120 and the file body 110.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.