阅读说明：本技术 一种刀具刀胚轧制工艺 (Cutter blank rolling process ) 是由 梁利国 于 2019-10-10 设计创作，主要内容包括：一种刀具刀胚轧制工艺,包括以下步骤：S1：通过锻打机床来抽制刀柄粗胚；S2：热轧轧制刀胚；S3：轧机热轧制刀胚刀背、刀堂和较平刀胚；S4：冲床裁切刀胚外形,使刀胚成型；S5：用轧机冷较平刀胚,即,将冷却变形的刀胚轧制平整；其中,轧辊对刀胚进行整平处理,得到刀胚成品。本发明中,刀具刀胚加工为成背厚、堂空、口薄的刀胚,其形状结构达到了传统刀具的形状、结构,使用此工艺,不用手工锻打,全部用机械加工,可以实现大批量生产,节约人工,降低了工人的技术要求,从而节约了人工和加工成本,可以实现用机床来大批量生产传统刀具。(A rolling process of a cutter blank comprises the following steps: s1: drawing a rough cutter handle blank by a forging machine tool; s2: hot rolling the cutter blank; s3: hot rolling the knife back, the knife hall and the relatively flat knife blank by a rolling mill; s4: cutting the shape of the cutter blank by a punch press to form the cutter blank; s5: the cutter blank is cooled and leveled by a rolling mill, namely, the cooled and deformed cutter blank is rolled and leveled; wherein, the roller carries out leveling treatment on the cutter blank to obtain a finished cutter blank product. According to the invention, the cutter blank is processed into the cutter blank with thick back, empty space and thin mouth, the shape and the structure of the cutter blank reach the shape and the structure of the traditional cutter, and by using the process, manual forging is not needed, and all the cutter blanks are machined, so that mass production can be realized, manpower is saved, the technical requirements of workers are reduced, the labor and the processing cost are saved, and the traditional cutter can be produced on a large scale by using a machine tool.)

1. The cutter blank rolling process is characterized by comprising the following steps:

s1: drawing a rough cutter handle blank by a forging machine tool;

cutting the material plate of the cutter blank into rectangular plate blocks on a plate shearing machine; heating the plate block by heating equipment, and pumping one end of the plate block into a rectangular block by using an air hammer or a belt hammer to serve as a knife handle;

s2: hot rolling the cutter blank;

the radial cutting surface shape of a lower roller of the standard single-pair roll mill is set to be the cutting surface shape of a cutter blank, namely, an arc step is arranged on the outer surface of the lower roller, the height of one end of the arc step is equal to the thickness of the back of the cutter blank, and one end of the arc step is in smooth transition connection with the outer surface of the roller; placing the rough cutter handle blank in the step S1 on an arc step of a lower roller, rotating the lower roller clockwise and driving an upper roller to rotate simultaneously, and when the upper roller and the lower roller roll the cutter blank simultaneously, rolling the rough cutter handle blank into an arc-shaped cutter blank with a thick side and a thin side by an arc step groove on the lower roller;

s3: hot rolling the knife back, the knife hall and the relatively flat knife blank by a rolling mill;

a roller A0 at the foremost end of the shaft rolling is provided with a step, so that the height and width distance of the step is equal to the thickness of the knife back of the knife blank, and a transition arc is arranged at the joint of the step and the peripheral surface of the roller, so that a knife hall is formed after the knife blank roller is rolled; then, rolling the cutter blank again under the other rollers A1-AN, and arranging a section on each pair of rollers in a matching way; when the roller rolls the knife back, the knife hall and the knife edge, the circular-arc-shaped knife blank is rolled into a plane shape;

s4: cutting the shape of the cutter blank by a punch press to form the cutter blank;

s5: the cutter blank is cooled and leveled by a rolling mill, namely, the cooled and deformed cutter blank is rolled and leveled; wherein, the roller carries out leveling treatment on the cutter blank to obtain a finished cutter blank product.

2. The cutter blank rolling process of claim 1, wherein in S3, the rolling mill is a rolling mill having a plurality of sets of roller pairs; the multiple groups of roller pairs are arranged side by side, each group of roller pairs are mutually independent, and the matching cutting surfaces of each group of roller pairs can be the same or different.

3. The cutter blank rolling process according to claim 1, wherein in S3, the sectional dimension changes of the rest of the rollers A1, A2, … … A (N-1) and AN are as follows:

A1=A2+A2×(0.1～0.5%)、

A2=A3+A3×(0.1～0.5%)、

.......

A（N-1）=AN+AN×(0.1～0.5%)。

4. the cutter blank rolling process of claim 1, wherein in S5, a multi-spindle rolling mill is used, the roller B0 at the foremost end of the spindle rolling mill is provided with a step so that the height and width distance of the step is equal to the thickness of the back of the cutter blank, and a transition arc is provided at the joint of the step and the peripheral surface of the roller so as to form a cutter cavity after the cutter blank roller is rolled; then, the cutter blank is rolled again under the other rollers B1-BN, and each pair of rollers are matched with each other to set the section.

5. The cutter blank rolling process according to claim 4, wherein in S5, the sectional dimension changes of the rest rollers B1, B2, … … B (N-1) and AN are as follows:

B1=B2+B2×(0.05～0.1%)、

B2=B3+B3×(0.05～0.1%)、

.......

B（N-1）=BN+BN×(0.05～0.1%)。

Technical Field

The invention relates to the field of cutter rolling processes, in particular to a cutter blank rolling process for a cutter.

Background

In the traditional cutter processing and the modern machine tool cutter processing, the cutter produced by the traditional process has a structure with thick back, thin mouth and empty space; modern machine tools produce tools with thick backs, thin mouths, and no tool pockets. Therefore, the cutter produced by the traditional process is more smooth to use. However, the traditional process has low production efficiency and high production cost, and the modern machine tool machining technology has high production efficiency and low production cost. Modern machine tool cutters occupy the vast majority in the market, traditional cutters have low market occupation, and people can not use the traditional cutters more. The traditional tool which slowly disappears is a problem to be solved, and how to improve the process of machining the tool by a modern machine tool is to better use the traditional tool which is more economical and easy to use.

Disclosure of Invention

Objects of the invention

In order to solve the technical problems in the background art, the invention provides a rolling process of a cutter blank, which is used for completely machining without manual forging, can realize mass production, saves labor and reduces the technical requirements of workers, thereby saving labor and machining cost and realizing the mass production of traditional cutters by a machine tool.

(II) technical scheme

In order to solve the problems, the invention provides a rolling process of a cutter blank, which comprises the following steps:

s1: drawing a rough cutter handle blank by a forging machine tool;

cutting the material plate of the cutter blank into rectangular plate blocks on a plate shearing machine; heating the plate block by heating equipment, and pumping one end of the plate block into a rectangular block by using an air hammer or a belt hammer to serve as a knife handle;

s2: hot rolling the cutter blank;

the radial cutting surface shape of a lower roller of the standard single-pair roll mill is set to be the cutting surface shape of a cutter blank, namely, an arc step is arranged on the outer surface of the lower roller, the height of one end of the arc step is equal to the thickness of the back of the cutter blank, and one end of the arc step is in smooth transition connection with the outer surface of the roller; placing the rough cutter handle blank in the step S1 on an arc step of a lower roller, rotating the lower roller clockwise and driving an upper roller to rotate simultaneously, and when the upper roller and the lower roller roll the cutter blank simultaneously, rolling the rough cutter handle blank into an arc-shaped cutter blank with a thick side and a thin side by an arc step groove on the lower roller;

s3: hot rolling the knife back, the knife hall and the relatively flat knife blank by a rolling mill;

a roller A0 at the foremost end of the shaft rolling is provided with a step, so that the height and width distance of the step is equal to the thickness of the knife back of the knife blank, and a transition arc is arranged at the joint of the step and the peripheral surface of the roller, so that a knife hall is formed after the knife blank roller is rolled; then, rolling the cutter blank again under the other rollers A1-AN, and arranging a section on each pair of rollers in a matching way; when the roller rolls the knife back, the knife hall and the knife edge, the circular-arc-shaped knife blank is rolled into a plane shape;

s4: cutting the shape of the cutter blank by a punch press to form the cutter blank;

s5: the cutter blank is cooled and leveled by a rolling mill, namely, the cooled and deformed cutter blank is rolled and leveled; wherein, the roller carries out leveling treatment on the cutter blank to obtain a finished cutter blank product.

Preferably, in S3, the rolling mill is a rolling mill having a plurality of sets of roll pairs; the multiple groups of roller pairs are arranged side by side, each group of roller pairs are mutually independent, and the matching cutting surfaces of each group of roller pairs can be the same or different.

Preferably, in S3, the changes in the sectional dimensions of the remaining rolls a1, a2, … … a (N-1), AN are, in order:

A1＝A2+A2×(0.1～0.5％)、

A2＝A3+A3×(0.1～0.5％)、

.......

A(N-1)＝AN+AN×(0.1～0.5％)。

preferably, in S5, a multi-spindle rolling mill is used, the roller B0 at the foremost end of the spindle rolling mill is provided with a step, so that the height and width distance of the step is equal to the thickness of the knife back of the knife blank, and a transition arc is provided at the joint of the step and the peripheral surface of the roller, so as to form a knife hall after the knife blank roller is rolled; then, the cutter blank is rolled again under the other rollers B1-BN, and each pair of rollers are matched with each other to set the section.

Preferably, in S5, the changes in the sectional dimensions of the remaining rolls B1, B2, … … B (N-1), AN are, in order:

B1＝B2+B2×(0.05～0.1％)、

B2＝B3+B3×(0.05～0.1％)、

.......

B(N-1)＝BN+BN×(0.05～0.1％)。

according to the invention, the cutter blank is processed into the cutter blank with thick back, empty space and thin mouth, the shape and the structure of the cutter blank reach the shape and the structure of the traditional cutter, and by using the process, manual forging is not needed, and all the cutter blanks are machined, so that mass production can be realized, manpower is saved, the technical requirements of workers are reduced, the labor and the processing cost are saved, and the traditional cutter can be produced on a large scale by using a machine tool.

Drawings

FIG. 1 is a process flow diagram of the rolling process of the cutter blank provided by the invention.

Fig. 2 is a schematic view of a first process in the rolling process of the cutter blank according to the present invention.

FIG. 3 is a schematic diagram of a second process in the rolling process of the cutter blank according to the present invention.

FIG. 4 is a schematic diagram of a third process in the rolling process of the cutter blank according to the present invention.

FIG. 5 is a schematic view of a blank rolling process of the cutter according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-5, the rolling process of the cutter blank provided by the invention comprises the following steps:

s1: drawing a rough cutter handle blank by a forging machine tool;

cutting the material plate of the cutter blank into rectangular plate blocks on a plate shearing machine; heating the plate block by heating equipment, and pumping one end of the plate block into a rectangular block by using an air hammer or a belt hammer to serve as a knife handle;

s2: hot rolling the cutter blank;

the radial cutting surface shape of a lower roller of the standard single-pair roll mill is set to be the cutting surface shape of a cutter blank, namely, an arc step is arranged on the outer surface of the lower roller, the height of one end of the arc step is equal to the thickness of the back of the cutter blank, and one end of the arc step is in smooth transition connection with the outer surface of the roller; placing the rough cutter handle blank in the step S1 on an arc step of a lower roller, rotating the lower roller clockwise and driving an upper roller to rotate simultaneously, and when the upper roller and the lower roller roll the cutter blank simultaneously, rolling the rough cutter handle blank into an arc-shaped cutter blank with a thick side and a thin side by an arc step groove on the lower roller;

s3: hot rolling the knife back, the knife hall and the relatively flat knife blank by a rolling mill;

a roller A0 at the foremost end of the shaft rolling is provided with a step, so that the height and width distance of the step is equal to the thickness of the knife back of the knife blank, and a transition arc is arranged at the joint of the step and the peripheral surface of the roller, so that a knife hall is formed after the knife blank roller is rolled; then, rolling the cutter blank again under the other rollers A1-AN, and arranging a section on each pair of rollers in a matching way; when the roller rolls the knife back, the knife hall and the knife edge, the circular-arc-shaped knife blank is rolled into a plane shape;

s4: cutting the shape of the cutter blank by a punch press to form the cutter blank;

s5: the cutter blank is cooled and leveled by a rolling mill, namely, the cooled and deformed cutter blank is rolled and leveled; wherein, the roller carries out leveling treatment on the cutter blank to obtain a finished cutter blank product

The machine tool used in the process is a single-roller pair rolling mill, a multi-roller pair rolling mill, a punch press, a heating device, an air hammer or a belt hammer.

According to the invention, the cutter blank is processed into the cutter blank with thick back, empty space and thin mouth, the shape and the structure of the cutter blank reach the shape and the structure of the traditional cutter, and by using the process, manual forging is not needed, and all the cutter blanks are machined, so that mass production can be realized, manpower is saved, the technical requirements of workers are reduced, the labor and the processing cost are saved, and the traditional cutter can be produced on a large scale by using a machine tool.

In an alternative embodiment, in S3, the rolling mill is a rolling mill having a plurality of sets of roller pairs; the multiple groups of roller pairs are arranged side by side, each group of roller pairs are mutually independent, and the matching cutting surfaces of each group of roller pairs can be the same or different.

In AN alternative embodiment, in S3, the sectional dimension changes of the remaining rolls a1, a2, … … a (N-1), AN are:

A1＝A2+A2×(0.1～0.5％)、

A2＝A3+A3×(0.1～0.5％)、

.......

A(N-1)＝AN+AN×(0.1～0.5％)。

in S3, the blank back, the tool space, and the flatter blank are hot rolled by a rolling mill. The process uses a rolling mill with a plurality of roller pairs, namely, the plurality of roller pairs are arranged together in parallel, each roller pair has a separate function, namely, the matching cutting surfaces of each roller pair can be different or the same. The specific matching section is shown in fig. 4; the matching section of the first pair of rollers of the multi-shaft rolling mill is shown in the figure, a step is arranged at the shaft end opening, the height and width distance of the step of the matching section is equal to the thickness of the knife back of a knife blank, and a knife house included angle and a transition arc are arranged at the joint of the step and the outer diameter surface of the roller, namely, after the knife blank is rolled by the first roller, the knife house is arranged, but the knife house and the knife back are not in place. The second pair, the third pair, and the first to the Nth pair of rolls are all made with the same matching cross section. During processing, the knife back, the knife hall and the knife edge of the knife blank are rolled into the required cross section shape. When the roller rolls the knife back, the knife hall and the knife edge, the circular-arc-shaped knife blank is rolled into a plane shape.

In an alternative embodiment, in S5, a multi-spindle rolling mill is used, the roller B0 at the foremost end of the spindle rolling mill is provided with a step, so that the height and width distance of the step is equal to the thickness of the knife back of the knife blank, and a transition circular arc is arranged at the joint of the step and the peripheral surface of the roller, so as to form a knife cavity after the knife blank roller is rolled; then, the cutter blank is rolled again under the other rollers B1-BN, and each pair of rollers are matched with each other to set the section.

In AN alternative embodiment, in S5, the sectional dimension changes of the remaining rolls B1, B2, … … B (N-1), AN are:

B1＝B2+B2×(0.05～0.1％)、

B2＝B3+B3×(0.05～0.1％)、

.......

B(N-1)＝BN+BN×(0.05～0.1％)。

the blank is heated in the previous steps, and the metal is deformed after cooling, and the cooled and deformed blank is rolled and flattened to meet the specified requirements. The working procedure also uses a multi-shaft rolling mill, the matching section of the upper roller and the lower roller is consistent with the section of the cutter blank, so that each pair of rollers can roll the cutter blank and can level the cutter blank. The cutter blank is processed into the cutter blank with thick back, empty space and thin mouth, the shape and the structure of the cutter blank reach the shape and the structure of the traditional cutter, and by using the process, the cutter blank is not required to be manually forged and is completely machined, so that the mass production can be realized, the manpower is saved, the technical requirements of workers are reduced, the manpower and the processing cost are saved, and the mass production of the traditional cutter by using a machine tool can be realized.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.