CN102764955A - Shiting fork processing method - Google Patents
Shiting fork processing method Download PDFInfo
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- CN102764955A CN102764955A CN2012102126240A CN201210212624A CN102764955A CN 102764955 A CN102764955 A CN 102764955A CN 2012102126240 A CN2012102126240 A CN 2012102126240A CN 201210212624 A CN201210212624 A CN 201210212624A CN 102764955 A CN102764955 A CN 102764955A
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Abstract
The invention discloses a shifting fork processing method which comprises the following steps: 1), selecting round bars with diameter of 55 mm and adopting a shearing machine to carry out blanking, wherein each sheared rough piece is 161 mm in length; 2), heating the rough pieces obtained in the step 1) in an intermediate-frequency furnace at the temperature of 1150 DEG C for 8.5 min; 3), hammering one end of each the rough piece obtained in step 2) by an air hammer 8-10 times; 4), placing the well hammered pieces in a grinding machine, wherein a forming die is mounted in the grinding machine and adopted to carry out hot forging for the pieces at the temperature of 850 DEG C; and 5), placing the pieces subjected to hot forging in a punch press so as to carry out edge cutting and heat correcting processing. Due to the adoption of the method, the shiting rod is ensured in symmetry, location and hardness, and has the advantages of good quality and greatly prolonged service life; and the requirements of batch production of the shiting forks are met.
Description
Technical field
The present invention relates to the machining process of shift fork, specifically belong to a kind of processing method of shift fork.
Background technology
The main finished surface of shift fork part is three two holes; In general since the machining accuracy on plane guarantee more easily than the machining accuracy in hole; Therefore; The design follows the principle of first face metapore, and the processing on hole and plane clearly is divided into roughing and fine finishining stage to guarantee the machining accuracy in hole.When formulating technological procedure,, be that benchmark is processed other again with the face with regard to first machined surface; The whole machining process process is selected building-block machine for use, and wherein each operation anchor clamps all adopts special fixture, in the special operation for processing big end hole, groove and brill microcephaly hole deviation face aperture; Select the locate mode of plane and two pits, consider reasons such as needed clamping force is less, this part clamps with manual clamping mode simple to operate; Its mechanism design is simple, and is convenient and can meet the demands.Shortcoming is comparatively coarse surface in this respect, thereby the sealing in the middle of the transmission case of this declutch shift shaft and an oiling is restricted.
Summary of the invention
The processing method that the purpose of this invention is to provide a kind of shift fork makes product obtain abundant assurance aspect symmetry, position degree and the product hardness, and good product quality has prolonged service life of product greatly, has satisfied shift fork spare and has produced the needs of processing in batches.
The technical scheme that the present invention adopts is following:
A kind of processing method of shift fork may further comprise the steps:
1), to select diameter for use be the 55mm round steel, utilizes cutter to carry out blanking, shears back blank length 161mm;
2), the blank of step 1 is put into heating in medium frequency stove heating, heating-up temperature is 1120-1180 ℃, keeps 8-9min heat time heating time;
3), step 2 is obtained workpiece, utilize pneumatic hammer that one end of said workpiece is pulled out hammer, pull out the hammer number of times 8-10 time;
4), the workpiece that will pull out behind the hammer puts into the press that rubs, installation forming mould in the press that rubs utilizes mould forge hot workpiece; 850 ℃ of temperature;
5), with the workpiece after the forge hot, put into that punch press is cut edge, hot school handles;
6), the workpiece behind the hot school is heat-treated;
7), the workpiece after the heat treatment is carried out Shot Blasting;
8), the cold school of the workpiece behind the ball blast is handled;
9), with the piece packaging of Shot Blasting.
In the described step 2, blank is put into the heating in medium frequency stove heat, heating-up temperature is 1150 ℃, keeps 8.5min heat time heating time.
The present invention makes product obtain abundant assurance aspect symmetry, position degree and the product hardness, and good product quality has prolonged service life of product greatly, has satisfied shift fork spare and has produced the needs of processing in batches.
The specific embodiment
A kind of processing method of shift fork may further comprise the steps:
1), to select diameter for use be the 55mm round steel, utilizes cutter to carry out blanking, shears back blank length 161mm;
2), the blank of step 1 is put into heating in medium frequency stove heating, heating-up temperature is 1150 ℃, keeps 8.5min heat time heating time;
3), step 2 is obtained workpiece, utilize pneumatic hammer that one end of said workpiece is pulled out hammer, pull out the hammer number of times 8-10 time;
4), the workpiece that will pull out behind the hammer puts into the press that rubs, installation forming mould in the press that rubs utilizes mould forge hot workpiece; 850 ℃ of temperature;
5), with the workpiece after the forge hot, put into that punch press is cut edge, hot school handles;
6), the workpiece behind the hot school is heat-treated;
7), the workpiece after the heat treatment is carried out Shot Blasting;
8), the cold school of the workpiece behind the ball blast is handled;
9), with the piece packaging of Shot Blasting.
Claims (2)
1. the processing method of a shift fork is characterized in that, may further comprise the steps:
1), to select diameter for use be the 55mm round steel, utilizes cutter to carry out blanking, shears back blank length 161mm;
2), the blank of step 1 is put into heating in medium frequency stove heating, heating-up temperature is 1120-1180 ℃, keeps 8-9min heat time heating time;
3), step 2 is obtained workpiece, utilize pneumatic hammer that one end of said workpiece is pulled out hammer, pull out the hammer number of times 8-10 time;
4), the workpiece that will pull out behind the hammer puts into the press that rubs, installation forming mould in the press that rubs utilizes mould forge hot workpiece; 850 ℃ of temperature;
5), with the workpiece after the forge hot, put into that punch press is cut edge, hot school handles;
6), the workpiece behind the hot school is heat-treated;
7), the workpiece after the heat treatment is carried out Shot Blasting;
8), the cold school of the workpiece behind the ball blast is handled;
9), with the piece packaging of Shot Blasting.
2. the processing method of shift fork according to claim 1, it is characterized in that: in the described step 2, blank is put into the heating in medium frequency stove heat, heating-up temperature is 1150 ℃, keeps 8.5min heat time heating time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102126240A CN102764955A (en) | 2012-06-26 | 2012-06-26 | Shiting fork processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102126240A CN102764955A (en) | 2012-06-26 | 2012-06-26 | Shiting fork processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102764955A true CN102764955A (en) | 2012-11-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102126240A Pending CN102764955A (en) | 2012-06-26 | 2012-06-26 | Shiting fork processing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN102764955A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100711A (en) * | 2013-04-03 | 2014-10-15 | 科奇科技传送系统股份有限公司 | Method for manufacturing shift fork |
| CN104148575A (en) * | 2014-07-24 | 2014-11-19 | 浙江昌利锻造有限公司 | Process for forging shifting forks |
| CN104439991A (en) * | 2014-11-19 | 2015-03-25 | 江苏恒义汽配制造有限公司 | Machining method for shifting fork differential between wheels of heavy-duty car |
| CN105328405A (en) * | 2015-09-29 | 2016-02-17 | 高鹏 | Method for manufacturing anti-abrasion alloy hydraulic cylinder |
| CN105855439A (en) * | 2016-04-05 | 2016-08-17 | 昌利锻造有限公司 | Machining method for planet carrier |
| CN105855440A (en) * | 2016-04-21 | 2016-08-17 | 昌利锻造有限公司 | Machining method of shifting fork |
| CN105855799A (en) * | 2016-04-21 | 2016-08-17 | 昌利锻造有限公司 | Machining method of axial joint fork |
| CN106216960A (en) * | 2016-08-18 | 2016-12-14 | 池州学院 | A kind of processing method of selector fork |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS591045A (en) * | 1982-06-28 | 1984-01-06 | Hamana Buhin Kogyo Kk | Manufacture of y-shaped part |
| CN101007378A (en) * | 2007-02-01 | 2007-08-01 | 上海保捷汽车零部件锻压有限公司 | Shifting fork forging method of auto parts |
| CN101433939A (en) * | 2008-10-10 | 2009-05-20 | 白城中一精锻股份有限公司 | Precision forging technique for cracking connection rod |
| CN101670417A (en) * | 2009-09-29 | 2010-03-17 | 重庆凯恩机械制造有限公司 | Steering knuckle forging molding process of heavy truck |
-
2012
- 2012-06-26 CN CN2012102126240A patent/CN102764955A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS591045A (en) * | 1982-06-28 | 1984-01-06 | Hamana Buhin Kogyo Kk | Manufacture of y-shaped part |
| CN101007378A (en) * | 2007-02-01 | 2007-08-01 | 上海保捷汽车零部件锻压有限公司 | Shifting fork forging method of auto parts |
| CN101433939A (en) * | 2008-10-10 | 2009-05-20 | 白城中一精锻股份有限公司 | Precision forging technique for cracking connection rod |
| CN101670417A (en) * | 2009-09-29 | 2010-03-17 | 重庆凯恩机械制造有限公司 | Steering knuckle forging molding process of heavy truck |
Non-Patent Citations (1)
| Title |
|---|
| 范常荣: "摩托车拨叉锻件锻造工艺", 《锻压机械》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100711A (en) * | 2013-04-03 | 2014-10-15 | 科奇科技传送系统股份有限公司 | Method for manufacturing shift fork |
| CN104148575A (en) * | 2014-07-24 | 2014-11-19 | 浙江昌利锻造有限公司 | Process for forging shifting forks |
| CN104439991A (en) * | 2014-11-19 | 2015-03-25 | 江苏恒义汽配制造有限公司 | Machining method for shifting fork differential between wheels of heavy-duty car |
| CN105328405A (en) * | 2015-09-29 | 2016-02-17 | 高鹏 | Method for manufacturing anti-abrasion alloy hydraulic cylinder |
| CN105855439A (en) * | 2016-04-05 | 2016-08-17 | 昌利锻造有限公司 | Machining method for planet carrier |
| CN105855440A (en) * | 2016-04-21 | 2016-08-17 | 昌利锻造有限公司 | Machining method of shifting fork |
| CN105855799A (en) * | 2016-04-21 | 2016-08-17 | 昌利锻造有限公司 | Machining method of axial joint fork |
| CN106216960A (en) * | 2016-08-18 | 2016-12-14 | 池州学院 | A kind of processing method of selector fork |
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Application publication date: 20121107 |