CN201720371U - Rolling forming die for manufacturing auto transmission synchronous sliding sleeve blank - Google Patents
Rolling forming die for manufacturing auto transmission synchronous sliding sleeve blank Download PDFInfo
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- CN201720371U CN201720371U CN2010202700602U CN201020270060U CN201720371U CN 201720371 U CN201720371 U CN 201720371U CN 2010202700602 U CN2010202700602 U CN 2010202700602U CN 201020270060 U CN201020270060 U CN 201020270060U CN 201720371 U CN201720371 U CN 201720371U
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- rolling wheel
- sliding sleeve
- synchronous sliding
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Abstract
The utility model discloses a rolling forming die for manufacturing an auto transmission synchronous sliding sleeve blank, which comprises a rolling wheel and a rolling shaft. The rolling forming die is characterized in that the outer circular ring of the rolling wheel is provided with a circular groove and the central part of the groove is provided with two circular bosses. The rolling forming die of the utility model successfully applies the ring rolling processing technique to manufacture auto transmission synchronous sliding sleeve blank and can form two auto transmission synchronous sliding sleeve blanks simultaneously, which saves energy to the maximum, reduces sequential processing amount, lowers material consumption and prolongs the service life of finished products.
Description
Technical field
The utility model belongs to the automotive transmission technical field, specifically, is that a kind of synchronous sliding sleeve of automotive transmission blank is rolled into pattern.
Background technology
The Domestic Automotive Industry product quality grows a lot in recent years, but wherein the forging process technology of part blank is still more backward, as producing synchronous sliding sleeve of automotive transmission.Traditional forging method is difficult to reach the high requirement of blank size, but owing to does not have still to adopt conventional method to forge at present than quantum jump aspect the forging technology innovation.Process blanking, heating, pier base, punching, punching the wad are made the blank of annular, leave bigger size surplus between blank that forges and the fabricated part, again by the circumferential groove on the machining process periphery.The subject matter that this forging method exists is: the material consumption height, the post-production amount is big.If the use steel pipe cuts into the annular blank of pipe nipple, the one, the cost of steel pipe's production own is very high, steel pipe price height, the saw kerf of 3～4mm almost consumes 5%～10% material when adding the saw material; The 2nd, the steel pipe's production wall thickness deviation is bigger, and GB8162-1999 regulation wall thickness difference allowed band is-10%～+ 12%, and the producer that produces auto parts machinery just must order goods by increase 10% wall thickness when the steel tube factory orders goods and could guarantee the requirement of endoporus processing.So, more than two kinds of methods all be to guarantee product quality to strengthen costs such as blank size and fabricated part size, directly influencing is exactly the raw materials consumption height, amount of machining is big, especially large-sized synchronous sliding sleeve of automotive transmission has increased manufacturing cost.Resemble the annular blank that has circumferential groove on this periphery of synchronous sliding sleeve of automotive transmission, forge processing blank and steel pipe's production and almost can't produce the annular blank of band, all cut groove by the later stage machined to groove.The material of groove part is to waste fully, and often these grooves account for 15%～20% of blank cumulative volume.
The part that also has traditional ring-shaped work pieces adopts forging and pressing to roll over the process technology of ring, this rolling ring method for processing can greatly reduce the manufacturing cost of blank, improve the accuracy of manufacture of blank, its main step is as follows: blanking, heating, descale, jumping-up, punching, blanking planar end surface, extension forming, shaping, normalizing, ball blast.This forging and pressing roll over ring the employed mould of method he by rolling wheel with roll over axle and form, rolling wheel simple in structure only limits to make common annular blank.For the processing of synchronous sliding sleeve of automotive transmission, in traditional rolling ring processing, do not occur as yet.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of synchronous sliding sleeve of automotive transmission blank to be rolled into pattern, spreading simultaneously goes out two synchronous sliding sleeve of automotive transmission blanks, again it is cut into two synchronous sliding sleeve of automotive transmission blanks, energy savings to greatest extent, reduce follow-up amount of machining, reduce material consumption, improve the comprehensive mechanical performance of blank simultaneously.
For solving above technical problem, the synchronous sliding sleeve of automotive transmission blank that the utility model provides is rolled into pattern, comprises rolling wheel and rolles over axle, it is characterized in that:
Described rolling wheel is the cylinder that has coaxial inner, one columniform locating slot is arranged on the left side of rolling wheel, this locating slot with rolling wheel coaxial and diameter greater than the diameter of bore of described rolling wheel, one circumferential groove is arranged on the outer toroid of rolling wheel, there are two hoop boss at described circumferential groove middle part, its axial cross section is shaped as: the width ratio of the top and bottom of described circumferential groove 〉=1, the angle α of joint face between the described circumferential groove top and bottom and described rolling wheel left side is 0 °～20 °, the bottom of described hoop boss and the width ratio at top 〉=1, the top of described hoop boss are lower than the outer toroid surface of described rolling wheel;
The described axle of rolling over is made up of work cylinder, the support cylinder body that is positioned at the cone in work cylinder left side and is positioned at work cylinder right side, the diameter of described support cylinder body is less than or equal to the cylindrical diameter of described work, described cone left end diameter is less than the right-hand member diameter and greater than the cylindrical diameter of described work, left end at this cone has threaded connection hole, described work cylinder, cone, support cylinder body and threaded connection hole coaxial line.
Above-mentioned synchronous sliding sleeve of automotive transmission blank is rolled into pattern, the circumferential groove rounding on the rolling wheel, hoop boss rounding.
A synchronous sliding sleeve of automotive transmission blank calendering forming mould of being made up of rolling wheel and rolling axle described in the utility model, its operation principle is identical with traditional calendering forming principle.Be blank with the round steel earlier, reach by blanking, heating, jumping-up, preformed and after series of processes such as blind hole, punching the wad and pressure side face, carry out calendering forming.A blank calendering forming mould of being made up of rolling wheel and rolling axle carries out calendering forming, its operation principle is as follows: with rolling wheel with roll over axle and be contained in respectively on separately the falsework, blank is enclosed within on the work cylinder of described rolling axle, rolling wheel is a driving shaft, rolles over axle and is actively socketed on the falsework.Rolling wheel moves down with workpiece and contacts, and the height of workpiece can just snap in the circumferential groove of described rolling wheel, and rolling wheel drives workpiece and rotates with rolling wheel.Rolling wheel continues to move down in the process of continuous spreading workpiece, and the height of workpiece is constant all the time, and the heavy wall of workpiece reduces gradually, and the diameter of workpiece constantly becomes big simultaneously.When workpiece with set in advance rolling over axial locating wheel (not shown) when contacting, stop the calendering forming operation.After calendering forming is finished, carry out shaping, normalizing again, reach the ball blast operation, just can be made into two synchronous sliding sleeve of automotive transmission blanks, again it is cut into two synchronous sliding sleeve of automotive transmission blanks.Concrete technological process as shown in Figure 5.
In sum, the utlity model has following beneficial effect:
1) the synchronous sliding sleeve of automotive transmission blank shape is directly used the mould calendering forming, has avoided machine to add the spillage of material that brings, and compares with forging stock and with the blank that steel pipe processes, and spillage of material has reduced by 15%～30%;
2) two synchronous sliding sleeve of automotive transmission blanks of one-shot forming have been saved the energy, manpower and equipment loss in the whole process flow of processing automobile speed changer synchronous sliding sleeve blank, have greatly reduced cost, have improved economic benefit.
3) adopt calendering forming, the radially progressively rolling expansion of blank forming has improved the inherent quality of blank, has improved the accuracy of manufacture of blank, has improved the heat treatment performance of fabricated part, and finished product significantly improves service life.
4) reduced follow-up machining allowance, improved production efficiency, reduced the manufacturing cost of blank again, saved the man power and material, machine adds cost obviously to be reduced.
Description of drawings
In Fig. 1 the utility model and scheme of installation.
The structural representation of rolling wheel in Fig. 2 the utility model.
Roll over a kind of structural representation of axle in Fig. 3 the utility model.
Fig. 4 a synchronous sliding sleeve of automotive transmission blank.
Two synchronous sliding sleeve of automotive transmission blanks that Fig. 4 b the utility model produces.
The whole process flow figure of Fig. 5 processing automobile speed changer synchronous sliding sleeve blank.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Want the synchronous sliding sleeve of automotive transmission blank of spreading shown in Fig. 4 a, the synchronous sliding sleeve of automotive transmission blank that the utility model adopts is rolled into pattern, combine by rolling wheel shown in Figure 21 and rolling axle 2 shown in Figure 3, spreading simultaneously goes out two synchronous sliding sleeve of automotive transmission blanks, shown in Fig. 4 b.
Rolling wheel 1 as shown in Figure 1 and Figure 2 is for having the cylinder of endoporus, and endoporus is coaxial with this cylinder; One columniform locating slot 1a is arranged on the left side of rolling wheel 1, and the coaxial and diameter of locating slot 1a and rolling wheel 1 has formed a T shape round platform hole greater than the diameter of bore of rolling wheel 1 with cylindrical endoporus.The endoporus of rolling wheel 1 and locating slot 1b can make rolling wheel firmly be installed on the falsework 4, and can guarantee that rolling wheel 1 play can not take place in the spreading process.One circumferential groove 1b is arranged on the outer toroid of rolling wheel 1, there are two hoop boss 1c at the middle part of circumferential groove 1b, its axial cross section is shaped as: the width ratio of the top and bottom of circumferential groove 1b 〉=1, the angle α of joint face between the circumferential groove 1b top and bottom and rolling wheel 1 left side is 0 °～20 °, the purpose that this angle is set is to flow for the ease of the extruding of metal in the spreading process, guarantee that metallic object is full of the circumferential groove 1b of rolling wheel 1, annular groove 1b on rolling wheel 1 outer toroid is full of metal and does not produce overlap, thereby rolles over the complete rule of blank 3a external form of making; Simultaneously can also be conveniently stripped.The bottom of hoop boss 1c and width ratio 〉=1 at top, the top of hoop boss 1c is lower than the outer toroid surface of rolling wheel 1.Such rolling wheel structure is to be provided with according to the outer toroid structure of as shown in Figure 5 synchronous sliding sleeve of automotive transmission blank fully, and blank 3a can just be snapped in the circumferential groove 1b of rolling wheel 1.
Form by work cylinder 2a, the support cylinder body 2c that is positioned at the cone 2b in work cylinder 2a left side and is positioned at work cylinder 2a right side as Fig. 1, rolling axle 2 shown in Figure 3.The diameter of support cylinder body 2c is less than or equal to the diameter of described work cylinder 2a, has 5 pairs of rolling wheels 2 of bracing frame to play a supportive role below support cylinder body 2c, to guarantee the normal rotation of rolling wheel 2.The cone 2b left end diameter in rolling wheel 2 left sides is less than the right-hand member diameter, has threaded connection hole 2d at the left end of cone 2b, and threaded connection hole 2d links to each other with falsework 4.Work cylinder 2a, cone 2b, support cylinder body 2c and threaded connection hole 2d coaxial line.Roll over axle 2 and baffle plate 6 is set, guarantee that workpiece 3a does not move axially in the calendering forming process in the left side of workpiece 3a.
As shown in Figure 1, the setting of rolling wheel 1 and rolling axle 2 is to decide according to the version of synchronous sliding sleeve of automotive transmission blank.In the specific implementation, the wall thickness of the circumferential groove depth ratio blank 3a of rolling wheel 1 usually lacks 1～3mm, therefore, rolling wheel 1 in the spreading process with the distance 〉=1～3mm that rolles over axle 2.The height of the hoop boss 1c of rolling wheel 1 is consistent with the circumferential groove degree of depth of blank 3a.The bottom of the hoop boss 1c of rolling wheel 1 and width ratio 〉=1 at top, being provided with like this is to be provided with for play conveniently stripped and that avoid rolling wheel 1 to rotate generation at a high speed produces kerve on blank 3a respective face.Simultaneously, behind blank 3a calendering forming, it to be cut into two synchronous sliding sleeve of automotive transmission blanks 3 (shown in Fig. 4 a), usually the bottom land width of circumferential groove 1b be arranged to Duo 2～8mm than the height summation of two synchronous sliding sleeve of automotive transmission blanks 3.As shown in Figure 2, the circumferential groove 1b rounding on the rolling wheel 1, hoop boss 1c rounding.
Claims (2)
1. a synchronous sliding sleeve of automotive transmission blank is rolled into pattern, comprises rolling wheel (1) and rolles over axle (2), it is characterized in that:
Described rolling wheel (1) is for having the cylinder of coaxial inner, one columniform locating slot (1a) is arranged on the left side of rolling wheel (1), this locating slot (1a) with rolling wheel (1) coaxial and diameter greater than the diameter of bore of described rolling wheel (1), one circumferential groove (1b) is arranged on the outer toroid of rolling wheel (1), there are two hoop boss (1c) at described circumferential groove (1b) middle part, its axial cross section is shaped as: width ratio 〉=1 of the top and bottom of described circumferential groove (1b), the angle α of joint face between this circumferential groove (1b) top and bottom and described rolling wheel (1) left side is 0 °～20 °, the bottom of described hoop boss (1c) and width ratio 〉=1 at top, the top of described hoop boss (1c) is lower than the outer toroid surface of described rolling wheel (1);
Described rolling axle (2) is by work cylinder (2a), be positioned at the cone (2b) in work cylinder (2a) left side and be positioned at support cylinder body (2c) composition on work cylinder (2a) right side, the diameter of described support cylinder body (2c) is less than or equal to the diameter of described work cylinder (2a), described cone (2b) left end diameter is less than the right-hand member diameter and greater than the diameter of described work cylinder (2a), left end at this cone (2b) has threaded connection hole (2d), described work cylinder (2a), cone (2b), support cylinder body (2c) and threaded connection hole (2d) coaxial line.
2. be rolled into pattern according to the described synchronous sliding sleeve of automotive transmission blank of claim 1, it is characterized in that: circumferential groove (1b) rounding on the described rolling wheel (1), hoop boss (1c) rounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202700602U CN201720371U (en) | 2010-07-23 | 2010-07-23 | Rolling forming die for manufacturing auto transmission synchronous sliding sleeve blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202700602U CN201720371U (en) | 2010-07-23 | 2010-07-23 | Rolling forming die for manufacturing auto transmission synchronous sliding sleeve blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201720371U true CN201720371U (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202700602U Expired - Fee Related CN201720371U (en) | 2010-07-23 | 2010-07-23 | Rolling forming die for manufacturing auto transmission synchronous sliding sleeve blank |
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| Country | Link |
|---|---|
| CN (1) | CN201720371U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056256A (en) * | 2013-01-14 | 2013-04-24 | 宁波雄狮机械制造有限公司 | Belt pulley processing method |
| CN110814262A (en) * | 2019-10-08 | 2020-02-21 | 江苏保捷锻压有限公司 | Double-efficient gear ring forging and pressing forming process |
| CN112756917A (en) * | 2020-12-31 | 2021-05-07 | 安徽砼宇特构科技有限公司 | Production process of stainless steel bushing ring |
-
2010
- 2010-07-23 CN CN2010202700602U patent/CN201720371U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056256A (en) * | 2013-01-14 | 2013-04-24 | 宁波雄狮机械制造有限公司 | Belt pulley processing method |
| CN110814262A (en) * | 2019-10-08 | 2020-02-21 | 江苏保捷锻压有限公司 | Double-efficient gear ring forging and pressing forming process |
| CN112756917A (en) * | 2020-12-31 | 2021-05-07 | 安徽砼宇特构科技有限公司 | Production process of stainless steel bushing ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20150723 |
|
| EXPY | Termination of patent right or utility model |