CN110561058A - Production process of washing machine impeller shaft - Google Patents
Production process of washing machine impeller shaft Download PDFInfo
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- CN110561058A CN110561058A CN201910744961.6A CN201910744961A CN110561058A CN 110561058 A CN110561058 A CN 110561058A CN 201910744961 A CN201910744961 A CN 201910744961A CN 110561058 A CN110561058 A CN 110561058A
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- spline
- raw material
- square
- stretching
- left front
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
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- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a production process of a washing machine impeller shaft, which comprises the following steps: vacuum quenching, after the hardness of the treatment is modulated, surface phosphating is carried out on the raw material through oxalic acid, the treated raw material is automatically cut off according to a set length, a tungsten steel mould is utilized, an R angle or an oblique angle is pre-pressed at the same time, the chamfered raw material is pre-pressed into an excircle of a square or a spline through the tungsten steel mould, the excircle of the square or the spline pre-pressed by the left front section is matched in the mould, then the middle section excircle and a right section provided with a positioning hole or without the positioning hole are synchronously formed, meanwhile, the right section spline is stretched and formed, an inner hole at the left front end of the square is stretched, and the inner hole at the left front end of the spline is synchronously stretched when the. The invention has novel structure, the hardness reaches the pressure intensity firstly through quenching and modulation treatment, the trouble of subsequent modulation is saved, the production cost is reduced, and the production process can greatly improve the production efficiency on the premise of ensuring the production quality.
Description
Technical Field
The invention relates to the field of production of washing machine impeller shafts, in particular to a production process of a washing machine impeller shaft.
background
The washing machine is a cleaning appliance for washing clothes by using mechanical action generated by electric energy, and is divided into two types of household appliances and collectors according to the rated washing capacity of the washing machine, the existing washing machines can be generally divided into a pulsator type washing machine, a drum type washing machine, a stirring type washing machine, a jet flow type washing machine, a double-acting washing machine and an inclined drum type washing machine, wherein the pulsator type washing machine and the drum type washing machine are widely applied, important parts in the pulsator type washing machine are pulsator shaft shafts, the traditional production process of the pulsator shaft usually needs more people to process the pulsator shaft in multiple steps, the time consumption is longer, the working efficiency is lower, the processing efficiency is lower, and therefore a production process of the pulsator shaft of the washing machine is designed to solve the.
disclosure of Invention
the invention aims to solve the defects in the prior art and provides a production process of a washing machine impeller shaft.
In order to achieve the purpose, the invention adopts the following technical scheme:
A production process of a washing machine impeller shaft comprises the following steps:
s1, quenching: vacuum quenching, and modulating the hardness HRC 17-20;
s2, surface treatment: surface phosphating the raw material obtained in the step S1;
s3, blanking: the phosphatized raw material in the step S2 is automatically fed through a multi-tapping feeder and is automatically cut off according to a set length;
s4, chamfering: automatically feeding the raw material cut in the step S2 through a multi-tapping feeder, pre-pressing a tungsten steel die into an R angle or an oblique angle, pre-pressing and chamfering one end of the raw material, pre-pressing and chamfering the other end of the raw material, and performing fine chamfering on the two ends of the raw material;
s5, left front section square or spline: automatically feeding the raw material chamfered in the step S3 through a multi-tapping feeder, and pre-pressing the raw material into an excircle of a square or spline by using a tungsten steel die;
s6, molding: automatically feeding the raw materials in the step S5 through a multi-tapping feeder, matching the pre-pressed outer circle of the square or spline of the left front section in a mould, and synchronously forming the outer circle of the middle section and the right section provided with a positioning hole or without the positioning hole;
S7, stretching a right spline: automatically feeding the raw material formed in the step S6 through a multi-tapping feeder, matching the outer circle of the pre-pressed square or spline in a die, and simultaneously stretching and forming the right section of spline;
s8, stretching an inner hole at the left front end: and (4) automatically feeding the raw material subjected to the stretching of the right-end spline in the step S7 through a multi-tapping feeder, matching the pre-pressed square or spline into a die, stretching the inner hole at the left front end of the square, and synchronously stretching the inner hole at the left front end of the spline during the stretching forming of the spline.
Preferably, the surface phosphating of the raw material in the step S2 is performed by phosphating the surface of the raw material with oxalic acid.
Preferably, in step S5, the tungsten steel die for splines is pre-pressed to have a spline outer diameter + 0.1.
The invention has the beneficial effects that: the process has the advantages that the hardness reaches HRC17-20 according to the requirement through quenching and modulation treatment, the trouble of subsequent modulation is eliminated, the production cost is reduced, and the production efficiency can be greatly improved on the premise of ensuring the production quality.
drawings
FIG. 1 is a schematic diagram of a product structure and a flow chart of a production process according to a first embodiment of the present invention;
fig. 2 is a schematic diagram of a product structure and a production process flow chart in the second embodiment of the invention.
Detailed Description
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
the invention provides a production process of a washing machine impeller shaft, which comprises the following steps:
s1, quenching: vacuum quenching, adjusting the hardness HRC17-20, wherein the quenching raw material adopts Cr13 type steel, (Cr 13 type steel is a series and is divided into five steel grades according to different steel contents, namely 0Cr13, 1Cr13, 2Cr13, 3Cr13 and 4Cr13, 0Cr13 is ferritic stainless steel, 1Cr13, 2Cr13, 3Cr13 and 4Cr13 are martensitic stainless steel, 0Cr13, 1Cr13 and 2Cr13 are generally selected, and the steel is hereinafter generally referred to as Cr 13);
s2, surface treatment: subjecting the raw material obtained in step S1 to oxalic acid surface phosphating;
S3, blanking: the phosphatized raw material in the step S2 is automatically fed through a multi-tapping feeder and is automatically cut off according to a set length, and the cutting length is determined according to actual production requirements;
s4, chamfering: the raw material cut off in the step S2 is automatically fed through a multi-tapping feeder, a tungsten steel die is utilized, meanwhile, an R angle is pre-pressed, during chamfering, single-end pre-pressing chamfering is firstly carried out, then pre-pressing chamfering is carried out on the other end, and then fine chamfering is carried out on the two ends, so that a phosphate coating can be effectively ensured on the R angle or the bevel angle, and the effect of protecting smoothness and no galling is achieved in subsequent forming;
S5, four directions of the left front section: automatically feeding the raw material chamfered in the step S3 through a multi-tapping feeder, and prepressing the raw material into a square by using a tungsten steel die;
S6, molding: automatically feeding the raw materials in the step S5 through a multi-tapping feeder, matching the pre-pressed square of the left front section in a mould, and synchronously forming the outer circle of the middle section and the positioning hole;
S7, stretching a right spline: automatically feeding the raw material formed in the step S6 through a multi-tapping feeder, matching the pre-pressed four sides into a die, and simultaneously stretching and forming the right section of spline;
S8, stretching an inner hole at the left front end: and (5) automatically feeding the raw material subjected to the stretching of the right-end spline in the step S7 through a multi-tapping feeder, matching the pre-pressed square into a die, and stretching the inner hole at the left front end of the square.
Example two
the invention provides a production process of a washing machine impeller shaft, which comprises the following steps:
S1, quenching: vacuum quenching, adjusting the hardness HRC17-20, wherein the quenching raw material adopts Cr13 type steel, (Cr 13 type steel is a series and is divided into five steel grades according to different steel contents, namely 0Cr13, 1Cr13, 2Cr13, 3Cr13 and 4Cr13, 0Cr13 is ferritic stainless steel, 1Cr13, 2Cr13, 3Cr13 and 4Cr13 are martensitic stainless steel, 0Cr13, 1Cr13 and 2Cr13 are generally selected, and the steel is hereinafter generally referred to as Cr 13);
s2, surface treatment: subjecting the raw material obtained in step S1 to oxalic acid surface phosphating;
s3, blanking: the phosphatized raw material in the step S2 is automatically fed through a multi-tapping feeder and is automatically cut off according to a set length, and the cutting length is determined according to actual production requirements;
S4, chamfering: the raw material cut off in the step S2 is automatically fed through a multi-tapping feeder, a tungsten steel die is utilized, meanwhile, an R angle or an oblique angle is pre-pressed, during chamfering, single-end pre-pressing chamfering is firstly carried out, then pre-pressing chamfering is carried out on the other end, and then fine chamfering is carried out on the two ends, so that a phosphate coating on the R angle can be effectively ensured, and the effect of protecting smoothness and no galling is achieved in subsequent forming;
s5, left anterior spline: automatically feeding the raw material chamfered in the step S3 through a multi-tapping feeder, and pre-pressing a tungsten steel die into an outer circle of the spline, wherein the tungsten steel die of the spline is only required to be pre-pressed into the outer diameter of the spline plus 0.1;
s6, molding: automatically feeding the raw materials in the step S5 through a multi-tapping feeder, matching the excircle of the pre-pressed spline of the left front section in a mould, and synchronously forming the excircle of the middle section and the excircle with a positioning hole;
s7, stretching a right spline: automatically feeding the raw material formed in the step S6 through a multi-tapping feeder, matching the excircle of the spline in a die, and simultaneously stretching and forming the right section of the spline;
S8, stretching an inner hole at the left front end: and (5) automatically feeding the raw material subjected to the stretching of the right-end spline in the step S7 through a multi-tapping feeder, matching the pre-pressed spline in a die, and synchronously stretching the inner hole at the left front end of the spline during the stretching forming of the spline.
The comparison between the output of the impeller shaft of the washing machine produced in the first to fourth days of the embodiment of the invention and the daily output produced by the traditional method is respectively counted, and the following results are obtained:
| statistics of | example one | Example two | conventional production |
| Production capacity (Tian \ piece) | 23800 | 20800 | 2500 |
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. the production process of the washing machine impeller shaft is characterized by comprising the following steps of:
s1, quenching: vacuum quenching, and modulating the hardness HRC 17-20;
S2, surface treatment: surface phosphating the raw material obtained in the step S1;
s3, blanking: the phosphatized raw material in the step S2 is automatically fed through a multi-tapping feeder and is automatically cut off according to a set length;
s4, chamfering: automatically feeding the raw material cut in the step S2 through a multi-tapping feeder, pre-pressing a tungsten steel die into an R angle or an oblique angle, pre-pressing and chamfering one end of the raw material, pre-pressing and chamfering the other end of the raw material, and performing fine chamfering on the two ends of the raw material;
s5, left front section square or spline: automatically feeding the raw material chamfered in the step S3 through a multi-tapping feeder, and pre-pressing the raw material into an excircle of a square or spline by using a tungsten steel die;
S6, molding: automatically feeding the raw materials in the step S5 through a multi-tapping feeder, matching the pre-pressed outer circle of the square or spline of the left front section in a mould, and synchronously forming the outer circle of the middle section and the right section provided with a positioning hole or without the positioning hole;
s7, stretching a right spline: automatically feeding the raw material formed in the step S6 through a multi-tapping feeder, matching the outer circle of the pre-pressed square or spline in a die, and simultaneously stretching and forming the right section of spline;
s8, stretching an inner hole at the left front end: and (4) automatically feeding the raw material subjected to the stretching of the right-end spline in the step S7 through a multi-tapping feeder, matching the pre-pressed square or spline into a die, stretching the inner hole at the left front end of the square, and synchronously stretching the inner hole at the left front end of the spline during the stretching forming of the spline.
2. the manufacturing process of a washing machine impeller shaft as claimed in claim 1, wherein the surface phosphating of the raw material in the step S2 is performed by phosphating the surface of the raw material with oxalic acid.
3. the process of claim 1, wherein in step S5, the tungsten steel mold of the spline is pre-pressed to have a spline outer diameter of + 0.1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910744961.6A CN110561058B (en) | 2019-08-13 | 2019-08-13 | Production process of washing machine impeller shaft |
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|---|---|---|---|
| CN201910744961.6A CN110561058B (en) | 2019-08-13 | 2019-08-13 | Production process of washing machine impeller shaft |
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| CN110561058A true CN110561058A (en) | 2019-12-13 |
| CN110561058B CN110561058B (en) | 2021-05-25 |
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