CN105057999A - Planet gear shaft machining method - Google Patents
Planet gear shaft machining method Download PDFInfo
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- CN105057999A CN105057999A CN201510527203.0A CN201510527203A CN105057999A CN 105057999 A CN105057999 A CN 105057999A CN 201510527203 A CN201510527203 A CN 201510527203A CN 105057999 A CN105057999 A CN 105057999A
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- workpiece
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- clamping
- gear shaft
- planet gear
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention discloses a planet gear shaft machining method. The method comprises the following steps of round steel feeding, end face chamfer turning, center hole drilling, outer circle turning, clamp spring groove turning, heat treatment, outer circle grinding, nickel plating and high-temperature tempering. In the outer circle turning and clamp spring groove turning processes, the clamping mode of alternative clamping and ejecting is adopted, so that clamping is more stable. A nickel plating technology is introduced, so that a high-hardness and high-wear-resistance nickel plating layer is formed on the surface of a workpiece, and the wear resistance of a planet gear shaft is improved. Meanwhile, a high-temperature tempering technology is adopted, so that the interior of the workpiece has good plasticity and toughness, the planet gear shaft can bear large torsional moment for a long time, and the quality of the planet gear shaft is guaranteed.
Description
Technical field
The present invention relates to mechanical manufacturing field, especially a kind of planet pin processing method.
Background technology
Planet pin is the common part in field of automotive transmissions, and especially in the frame for movement such as differential mechanism, planet pin to be used for transmission of torque, to planetary gear, realizing torque distribution, thus making wheel realize differential running.Because the applying working condition of planet pin is comparatively severe, often there is the situations such as wearing and tearing, have a strong impact on performance and the life-span of the frame for movements such as differential mechanism.Simultaneously, in existing planet pin production technology, steel raw material used is No. 45 steel, is heat-treating in process to workpiece, in order to obtain higher hardness and wearability, usually adopt the temper compared with low temperature, but correspondingly the plasticity of workpiece and toughness all have and lose significantly, the planet pin obtained like this when practice, owing to being subject to larger torsional moment, easy generation fracture, and then serious harm motor-driven vehicle going safety.
Summary of the invention
For the problems referred to above of the prior art, the present invention proposes a kind of planet pin processing method.
Technical scheme of the present invention is: a kind of planet pin processing method, comprises the following steps:
A, blanking: according to required size, choice of material round steel, and it is for subsequent use as workpiece to be cut into material section by size requirements, certain allowance is left at two ends;
B, car chamfering and drill centers: by clamping workpiece on lathe, carry out turnery processing chamfering to two end faces of workpiece, and get out centre bore at two ends;
C, turning: by clamping workpiece on lathe, carry out turnery processing cylindrical, and stay mill amount 0.5mm;
D, car jump-ring slot: by clamping workpiece on lathe, carry out turnery processing at workpiece two ends and go out jump-ring slot;
E, heat treatment: carburizing and quenching is carried out to workpiece;
F, cylindrical grinding: the workpiece complete to heat treatment is put on grinding machine, and excircle of workpiece is milled to preliminary dimension;
G, nickel plating: carry out Nickel Plating Treatment to surface of the work by plating mode, make surface of the work form one deck nickel coating;
H, tempering: carry out high tempering process to workpiece, adopt in air after tempering and cool.
Further, in described step C and step D, clamping workpiece is adopted to the mode on folder one top.
Due in the tempering process of metal, the temperature of tempering is different, the workpiece performance obtained is also different, Hardness and toughness can not get both, make the planet pin performance produced very limited, thus the present invention selects to adopt high-temperature tempering process, after heating, insulation, cooling, obtain tempered sorbite; Introduce nickel-plating technology simultaneously, make product have the advantage of Hardness and toughness concurrently.
Compared with prior art, the invention has the beneficial effects as follows:
1. the present invention is by carrying out Nickel Plating Treatment to surface of the work, simultaneously by high tempering process, not only increase case hardness and the wearability of workpiece, also make whole workpiece have higher intensity, plasticity and toughness, and then ensure that the performance of planet pin, enhance its service life;
2. the present invention is when carrying out size and jump-ring slot to workpiece, adopts the installation way on folder one top, ensures the stability of clamping, can bear larger Cutting Force, ensure that turnery processing quality;
3. each processing step of the present invention is simple, easy to operate, and with low cost, has good market popularization value.
Detailed description of the invention
Below in conjunction with embodiment, the technical scheme in the present invention is further illustrated.
A kind of planet pin processing method of the present invention, comprises the following steps:
A, blanking: according to required size, choice of material round steel, and it is for subsequent use as workpiece to be cut into material section by size requirements, certain allowance is left at two ends;
B, face work chamfering and drill centers: by clamping workpiece on lathe, carry out turnery processing chamfering to two end faces of workpiece, and get out centre bore at two ends;
C, turning: by workpiece adopt one folder one top mode clamping on lathe, this installation way can bear larger Cutting Force thus clamping obtain more stable, carry out turnery processing cylindrical, and stay mill amount 0.5mm;
D, car jump-ring slot: adopted by workpiece the mode clamping on folder one top on lathe, carry out turnery processing at workpiece two ends and go out jump-ring slot;
E, heat treatment: carburizing and quenching is carried out to workpiece;
F, cylindrical grinding: the workpiece complete to heat treatment is put on grinding machine, and excircle of workpiece is milled to preliminary dimension;
G, nickel plating: carry out Nickel Plating Treatment to surface of the work by plating mode, make surface of the work form one deck nickel coating;
H, tempering: carry out high tempering process to workpiece, adopt in air after tempering and cool.
Based on such scheme, the planet pin produced not only has higher case hardness and wearability, has good plasticity and toughness on the whole simultaneously, can bear larger twisting resistance and not easily produce fracture.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a planet pin processing method, is characterized in that, comprises the following steps:
A, blanking: according to required size, choice of material round steel, and it is for subsequent use as workpiece to be cut into material section by size requirements, certain allowance is left at two ends;
B, face work chamfering and drill centers: by clamping workpiece on lathe, carry out turnery processing chamfering to two end faces of workpiece, and get out centre bore at two ends;
C, turning: by clamping workpiece on lathe, carry out turnery processing cylindrical, and stay mill amount 0.5mm;
D, car jump-ring slot: by clamping workpiece on lathe, carry out turnery processing at workpiece two ends and go out jump-ring slot;
E, heat treatment: carburizing and quenching is carried out to workpiece;
F, cylindrical grinding: the workpiece complete to heat treatment is put on grinding machine, and excircle of workpiece is milled to preliminary dimension;
G, nickel plating: carry out Nickel Plating Treatment to surface of the work by plating mode, make surface of the work form one deck nickel coating;
H, tempering: carry out high tempering process to workpiece, adopt in air after tempering and cool.
2. a kind of planet pin processing method as claimed in claim 1, is characterized in that: the mode in described step C and step D, clamping workpiece being adopted to folder one top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510527203.0A CN105057999A (en) | 2015-08-24 | 2015-08-24 | Planet gear shaft machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510527203.0A CN105057999A (en) | 2015-08-24 | 2015-08-24 | Planet gear shaft machining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105057999A true CN105057999A (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510527203.0A Pending CN105057999A (en) | 2015-08-24 | 2015-08-24 | Planet gear shaft machining method |
Country Status (1)
| Country | Link |
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| CN (1) | CN105057999A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880954A (en) * | 2016-06-12 | 2016-08-24 | 马鞍山市三川机械制造有限公司 | Production technology of gear shaft of automotive speed reducer |
| CN109694948A (en) * | 2019-02-20 | 2019-04-30 | 上海春玉金属热处理有限公司 | A kind of planetary gear shaft nickel plating aging technique |
| CN111468910A (en) * | 2020-05-29 | 2020-07-31 | 全椒县众联机械有限公司 | Antirust processing technology of cylindrical gear |
| CN115091149A (en) * | 2022-06-13 | 2022-09-23 | 玉环普天单向器有限公司 | Method and equipment for machining automobile planet wheel shaft |
-
2015
- 2015-08-24 CN CN201510527203.0A patent/CN105057999A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880954A (en) * | 2016-06-12 | 2016-08-24 | 马鞍山市三川机械制造有限公司 | Production technology of gear shaft of automotive speed reducer |
| CN109694948A (en) * | 2019-02-20 | 2019-04-30 | 上海春玉金属热处理有限公司 | A kind of planetary gear shaft nickel plating aging technique |
| CN111468910A (en) * | 2020-05-29 | 2020-07-31 | 全椒县众联机械有限公司 | Antirust processing technology of cylindrical gear |
| CN115091149A (en) * | 2022-06-13 | 2022-09-23 | 玉环普天单向器有限公司 | Method and equipment for machining automobile planet wheel shaft |
| CN115091149B (en) * | 2022-06-13 | 2024-03-15 | 玉环普天单向器有限公司 | Method and equipment for machining automobile planetary wheel shaft |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151118 |
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| WD01 | Invention patent application deemed withdrawn after publication |