CN202438596U - Fine punch die for constant velocity universal joint retainer window - Google Patents
Fine punch die for constant velocity universal joint retainer window Download PDFInfo
- Publication number
- CN202438596U CN202438596U CN2012200815422U CN201220081542U CN202438596U CN 202438596 U CN202438596 U CN 202438596U CN 2012200815422 U CN2012200815422 U CN 2012200815422U CN 201220081542 U CN201220081542 U CN 201220081542U CN 202438596 U CN202438596 U CN 202438596U
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- die
- punch
- drift
- constant velocity
- retainer window
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Abstract
A fine punch die for a constant velocity universal joint retainer window comprises a punch rod, a concave die, a punch head and a location disk and is characterized in that the punch rod and the punch head are positioned in an inner circle of the location disk, and the punch head corresponds to a concave die hole. A cutting edge of the punch head is a flat edge of 0.03-0.1mm, a cutting edge of the concave die is a straight edge of 4mm, a gap between working faces of the punch head and the concave die is 0.03-0.04mm, a gap between non-working faces of the punch head and the concave die is 0.1-0.4mm, and a die cutting allowance is 0.1-0.4mm. The fine punch die can substitute an existing milling and broaching processing method, can punch the retainer window efficiently and finely, simultaneously reduces cost and improves market competitiveness of products.
Description
Technical field
The utility model relates to a kind of constant velocity cardan joint retainer window fine blanking die, belongs to field of machining.
Background technology
Retainer is the key component in the car transmission shaft constant velocity cardan joint.At present, retainer generally is divided into two kinds, like Fig. 1, shown in 3.A kind of is the concentric retainer of the inside and outside centre of sphere (AC or RF type), and wall thickness is 3-4mm, six window center planes through the centre of sphere and and axis normal; Another kind is the eccentric retainer (Double Offset type) of inside and outside centre of sphere decentraction, and wall thickness is 3-7mm, six window center planes and axis normal and be positioned in the middle of the inside and outside centre of sphere.Although the retainer window shape is different, window non-working surface or be plane 12 or for cambered surface 13, two working faces 14,15 of window must be the planes.Retainer has distortion after carburizing and quenching, tempering; Therefore not only to carry out grinding to its internal and external spherical surfaces; Also to carry out grinding, to guarantee the final size precision (tolerance is 0.04mm) and surface roughness (Ra0.8-1.6um) requirement of window banging face to its six window banging faces.As everyone knows, retainer slightly behind the window stamping-out gradient be generally 0.3-0.4mm, so window must carry out semifinishing after slightly dashing, and carries out grinding again.The semifinishing method of prior art is milling or broaching, but efficient is low and cost is high, is difficult to adapt to the requirement of market competition environment, and the used fine blanking die of the utility model adds just and solves these problems.
Summary of the invention
The purpose of the utility model is: a kind of constant velocity cardan joint retainer window fine blanking die that provides, use present technique can high efficiency, semifinishing retainer window cheaply, improve product market competitiveness.
The technical scheme that the utility model provided is: constant velocity cardan joint retainer window fine blanking die, have jumper bar, drift, die, positioning disk, and it is characterized in that: jumper bar, drift place the interior circle of positioning disk, and drift is corresponding with the die hole.The cutting edge of said drift is the flat sword of 0.03-0.1mm, and the cutting edge of said die is the straight sword of 4mm.The gap is 0.03-0.04mm between drift and punch die working face, and the non-working surface gap is 0.7-0.9mm.
Through using this programme, can substitute broaching and milling process, improve working (machining) efficiency, reduce cost, improve the market competitiveness.
Description of drawings
In conjunction with accompanying drawing the utility model is described further.
Fig. 1 is the concentric retainer product structure sketch map of the inside and outside centre of sphere.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 is the eccentric retainer product structure sketch map of the inside and outside centre of sphere.
Fig. 4 is the B-B profile of Fig. 3.
Fig. 5 is the structural representation of the utility model constant velocity cardan joint retainer window fine blanking die
Fig. 6 is a C-C profile among Fig. 5.
Fig. 7 is an I portion enlarged drawing among Fig. 5.
Fig. 8 is an II portion enlarged drawing among Fig. 5.
Gap, the plane of 12 window non-working surfaces, the cambered surface, 14 of 13 window non-working surfaces, the working face of 15 windows between the cutting edge of 1 die among the figure, 2 retainers, 3 drifts, 4 jumper bars, 5 bolts, 6 positioning disks, 7 bodies, 8 drifts, cutting edge, the gap between 10 non-working surfaces, 11 drifts and the punch die working face of 9 dies.
The specific embodiment
Constant velocity cardan joint retainer window fine blanking die has jumper bar 4, drift 3, die 1, positioning disk 6, and jumper bar, drift place the interior circle of positioning disk, and drift is corresponding with the die hole.The cutting edge 8 of said drift is the flat sword of 0.03-0.1mm, and the cutting edge 9 of said die is the straight sword of 4mm.Said drift and die, the gap 11 between its working face is 0.03-0.04mm, the gap 10 between non-working surface is 0.7-0.9mm.Mould stamping-out surplus is 0.1-0.4mm.Drift 3 is connected with jumper bar 4 through connecting bolt 5, and jumper bar is connected with bed body 7.Retainer 2 is that (workpiece to be machined) is contained on the positioning disk, and positioning disk can rotate on the bed body.During stamping-out, drift under the drive of jumper bar by the inner outwards stamping-out of retainer, i.e. stamping-out from top to bottom all the time; Whenever dashed a hole, drift lifts together with jumper bar, and workpiece changes 60 degree under the driving of devices such as positioning disk; Towards another hole, after having dashed 6 holes, accomplish the processing of a workpiece again.Die, drift working face gap, non-working surface gap such as C-C section are shown in Figure 6.Drift blade shape such as I portion amplify shown in Figure 7, and cutting edge has 0.03-0.1mm to put down sword, adopt 10 degree anterior angles.Cutting edge of die shape such as II portion amplify shown in Figure 8, adopt the straight sword of 4mm, 2 degree relief angles.The contacted surface of die and workpiece must match with the surface configuration of workpiece, makes the stamping-out stress balance.Die, drift material selection steel-bonded carbide DT-40, hardness is HRC64-67 behind the Q-tempering, surface roughness is Ra0.4 μ m.
Must make drift be arranged in the die hole fully during the adjustment mould, drift equates with die non-working surface two side clearances; Because the design feature of stamping-out, jumper bar head strain is big slightly than its root, colliding with die dashing to cut in the process for preventing drift, when design, on the left of the mould gap press total backlash 1/3, the right side presses 2/3 of total backlash and do not wait gap design.
Claims (3)
1. constant velocity cardan joint retainer window fine blanking die has jumper bar, drift, die, positioning disk, it is characterized in that: jumper bar, drift place the interior circle of positioning disk, and drift is corresponding with the die hole.
2. constant velocity cardan joint retainer window fine blanking die according to claim 1 is characterized in that the cutting edge of said drift is the flat sword of 0.03-0.1mm, and the cutting edge of said die is the straight sword of 4mm.
3. constant velocity cardan joint retainer window fine blanking die according to claim 1 is characterized in that the gap is 0.03-0.04mm between said drift and punch die working face, and the non-working surface gap is 0.7-0.9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200815422U CN202438596U (en) | 2012-03-06 | 2012-03-06 | Fine punch die for constant velocity universal joint retainer window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200815422U CN202438596U (en) | 2012-03-06 | 2012-03-06 | Fine punch die for constant velocity universal joint retainer window |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202438596U true CN202438596U (en) | 2012-09-19 |
Family
ID=46820051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200815422U Expired - Fee Related CN202438596U (en) | 2012-03-06 | 2012-03-06 | Fine punch die for constant velocity universal joint retainer window |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202438596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106573286A (en) * | 2014-07-29 | 2017-04-19 | 萨尔瓦尼尼意大利股份公司 | Punching apparatus |
-
2012
- 2012-03-06 CN CN2012200815422U patent/CN202438596U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106573286A (en) * | 2014-07-29 | 2017-04-19 | 萨尔瓦尼尼意大利股份公司 | Punching apparatus |
| CN106573286B (en) * | 2014-07-29 | 2019-06-28 | 萨尔瓦尼尼意大利股份公司 | Stamping device |
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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: 20120919 Termination date: 20150306 |
|
| EXPY | Termination of patent right or utility model |