CN103537540B - The manufacture method of clutch disc - Google Patents
The manufacture method of clutch disc Download PDFInfo
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- CN103537540B CN103537540B CN201310290182.6A CN201310290182A CN103537540B CN 103537540 B CN103537540 B CN 103537540B CN 201310290182 A CN201310290182 A CN 201310290182A CN 103537540 B CN103537540 B CN 103537540B
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- diameter portion
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- clutch disc
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Abstract
A manufacture method for clutch disc, yield rate can manufacture the cyclic clutch sheet with intensity well.This manufacture method possesses: in the base material (13) having round-ended cylinder shape, is formed towards the wide diameter portion formation process of this end (13b1) expanding wide diameter portion (14) in end (13b1) side of surrounding wall portion (13b); The base material (13 ') being formed with wide diameter portion (14) is divided into the segmentation process of wide diameter portion (14) and the new base material (13A) except wide diameter portion (14); The stamping procedure of the plate-shaped member (15) of ring-type is made by carrying out punching press to the wide diameter portion obtained by segmentation process (14); Carry out stamping-out by the plate-shaped member (15) to ring-type and obtain the blank operation of the clutch disc (16) of ring-type, the length of the surrounding wall portion (13b) of the new base material obtained by segmentation process can be formed than in wide diameter portion formation process the length of wide diameter portion (14) long during, to the new base material obtained by segmentation process (13B ..., 13X-1) carry out wide diameter portion formation process, segmentation process, stamping procedure and blank operation.
Description
Technical field
The present invention relates to the manufacture method of the clutch disc for automatic transmission.
Background technology
Fig. 6 is the figure of the manufacture method of the clutch disc that conventional example is described, Fig. 6 (a) illustrates carry out stamping-out to one piece of metallic plate P1 and manufacture the figure of the situation of the clutch disc Kp of ring-type, to be the figure illustrated to manufacture the clutch disc Kp ' of ring-type and the situation by one piece of metallic plate P1 stamping-out multiple arc-shaped parts P4, Fig. 6 (c) be Fig. 6 (b) illustrates and connected by the parts P4 of the arc-shaped shown in Fig. 6 (b) and the figure of the clutch disc Kp ' of ring-type that obtains.
Clutch disc Kp for vehicle automatic transmission sees to have ring-shaped from axial, as the manufacture method of this clutch disc Kp, be usually known to the method (with reference to Fig. 6 (a)) being carried out circlewise by the metallic plate P1 stamping-out of rectangular shape manufacturing.
At this, although have larger area for the metallic plate P1 of stamping-out clutch disc Kp circlewise, residual part P2, the P3 after stamping-out goes out the clutch disc Kp of ring-type is not diverted to other purposes, mostly directly throws away.
Therefore, in above-mentioned manufacture method, there is the high problem of manufacturing cost of finished product rate variance, clutch disc Kp.
To this, such as, disclose in patent document 1 and the parts P4 of multiple arc-shaped is connected and manufactures the method for the clutch disc Kp ' of ring-type.
When above-mentioned manufacture method, as shown in Fig. 6 (b), (c), by the parts P4 of multiple arc-shapeds of stamping-out setting will be nuzzled in one piece of metallic plate P1, can suppress thus in metallic plate P1 by the area of parts P5 thrown away.
Patent document 1:(Japan) JP 2007-177931 publication
But if connected by the parts P4 of multiple arc-shaped and manufacture the clutch disc Kp ' of ring-type, then the clutch disc Kp that the intensity meeting comparison one piece of metallic plate of the clutch disc Kp ' obtained carries out stamping-out and makes is weak.
Therefore, requirement yield rate can manufacture the clutch disc of the ring-type with sufficient intensity well.
Summary of the invention
The manufacture method of clutch disc of the present invention comprises following operation: wide diameter portion formation process, and its end side at the described length direction of the tubular base material with the end sealed by the other end of length direction forms the wide diameter portion expanding towards described one end; Segmentation process, the tubular base material described with the end being formed with described wide diameter portion is divided into described wide diameter portion and the new tubular base material with the end except described wide diameter portion by it; Stamping procedure, it makes the plate-shaped member of ring-type by carrying out punching press to the wide diameter portion obtained by described segmentation process; Blank operation, it obtains the clutch disc of ring-type by carrying out stamping-out to the plate-shaped member of described ring-type, during the length of the described length direction of the new tubular base material with the end obtained by described segmentation process is can form the length of wide diameter portion in described wide diameter portion formation process, the new tubular base material with the end obtained by described segmentation process is used to carry out described wide diameter portion formation process, described segmentation process, described stamping procedure and described blank operation.
According to the present invention, during the length on the length direction of the new tubular base material obtained by segmentation process is the length that can form wide diameter portion, the tubular base material newly obtained is used repeatedly to carry out wide diameter portion formation process ~ blank operation, so multiple clutch disc can be obtained by the tubular base material prepared at first.
And the part that only can not form the length of wide diameter portion in the initial tubular base material prepared finally goes out of use.Therefore, due to the part gone out of use in cartridge can be reduced, so yield rate the clutch disc of ring-type can be manufactured well.
In addition, manufactured the clutch disc of ring-type by tubular base material, so the cyclic clutch sheet that the parts of arc-shaped connect and manufacture by the strength ratio of this clutch disc is high.
Therefore, it is possible to yield rate manufactures the clutch disc of the ring-type possessing enough intensity well.
Accompanying drawing explanation
Fig. 1 is the flow chart of the manufacture method of the clutch disc of embodiment;
Fig. 2 (a) ~ (c) is the figure of the manufacture method of the clutch disc that embodiment is described;
Fig. 3 (a) ~ (c) is the figure of the manufacture method of the clutch disc that embodiment is described;
Fig. 4 (a) ~ (c) is the figure of the manufacture method of the clutch disc that embodiment is described;
Fig. 5 (a) ~ (d) is the figure of the manufacture method of the clutch disc that embodiment is described;
Fig. 6 (a) ~ (c) is the figure of the manufacture method of the clutch disc that conventional example is described.
Description of symbols
10: metallic plate
11: plate-shaped member
12: residual parts
12a: opening
13: base material
13b1: end
13b2: basic point
13,13A ..., 13X: base material
13a: bottom
13b: surrounding wall portion
14: wide diameter portion
140: base portion
140a: inner circumferential
140b: periphery
15: plate-shaped member
150: base portion
150a: inner circumferential
150b: periphery
16: clutch disc
160: base portion
161: teeth portion
17: residual parts
Kp: clutch disc
Kp ': clutch disc
P1: metallic plate
X: center line
Z: horizontal line
Detailed description of the invention
Below, be example for the clutch disc of automatic transmission, the situation of clutch disc 16 (with reference to Fig. 4 (c)) that is namely provided with multiple teeth portion in inner circumferential, the manufacture method of the clutch disc of embodiment is described.
Fig. 1 is the flow chart of the manufacture method of the clutch disc 16 of embodiment.In addition, in FIG, with process each operation (S1 ~ S6) of processing and together represent parts for processing process and as processing the result processed and the parts obtained.
Fig. 2 illustrates from the metallic plate 10 of one piece of rectangular shape to the figure of base material 13 making round-ended cylinder shape.In addition, in Fig. 2 (a) ~ (c), in the downside of the top view of each parts (metallic plate 10, plate-shaped member 11, residual parts 12, base material 13), in the profile (A-A profile) of each parts, indicate the mark of the thickness highlighting these parts in the lump.
In the manufacture method of the clutch disc of embodiment, manufacture clutch disc 16 (with reference to Fig. 4) by the metallic plate 10 (with reference to Fig. 2) of one piece of rectangular shape.
At this, metallic plate 10 is made up of the metal material forming clutch disc 16, has the thickness W1 (with reference to Fig. 2 (a)) throughout whole region approximate equality.
First, in step S1 (with reference to Fig. 1), by carrying out circular stamping-out to metallic plate 10, conglobate plate-shaped member is made.Now, together obtain the residual parts 12 at central portion with the opening 12a of the size of mating with plate-shaped member 11 with the plate-shaped member 11 of circle, but these residual parts 12 are not used in the manufacture of later clutch disc 16 and go out of use.
Then, in step s 2, by carrying out drawing processing to plate-shaped member 11, the base material 13 of round-ended cylinder shape is made.
The surrounding wall portion 13b that this base material 13 having circular bottom 13a from axially seeing, surrounding the periphery of bottom 13a throughout complete cycle, surrounding wall portion 13b is formed with phase co-altitude apart from the height h1 of bottom 13a throughout complete cycle.
In addition, the internal diameter D1 of surrounding wall portion 13b is set as the internal diameter Da (with reference to Fig. 4) little (Da > D1) than the clutch disc 16 finally obtained.For guaranteeing the formation space of the teeth portion 161 of clutch 16.
Fig. 3 illustrates from base material 13 to the figure making wide diameter portion 14 and new base material 13A.In Fig. 3 (a) ~ (c), each parts (base material 13,13 ', wide diameter portion 14, new base material 13A) the downside of top view, in the profile (A-A profile) of each parts, be marked with the mark of the thickness highlighting these parts in the lump.
In step S3 (with reference to Fig. 1), implement expanding to the 13b1 side, end of the open side of the surrounding wall portion 13b of base material 13, formed along with towards strong side, internal diameter D2 becomes large wide diameter portion 14.
The scope of the specified altitude ha of surrounding wall portion 13b bends to radial outside and is formed by wide diameter portion 14 in the base material 13 shown in Fig. 3 (a), and this height ha sets according to the radial width W of the clutch disc 16 of the ring-type finally obtained and outer diameter D b (with reference to Fig. 4 (c)).
Then, in step s 4 which, in the base material 13 ' being formed with wide diameter portion 14, along the horizontal line Z (with reference to Fig. 3 (b)) relative to bottom 13a level, the basic point 13b2 (basic point of the bending in surrounding wall portion 13b) of the wide diameter portion 14 in surrounding wall portion 13b is cut off.Thus, the base material 13 ' being formed with wide diameter portion 14 is divided into the new base material 13A of the height reduction of wide diameter portion 14 and surrounding wall portion 13b.At this, the surrounding wall portion 13b of the base material 13A newly obtained is apart from the amount (h1 > h2) of the height ha (with reference to Fig. 3 (a)) of the height h2 of the bottom 13a wide diameter portion 14 that cut off lower than the height h1 of the surrounding wall portion 13b of above-mentioned base material 13.
In embodiments, one end (end 13b1) side of surrounding wall portion 13b bends to radial outside throughout complete cycle and is formed with wide diameter portion 14, have in the base material 13 ' of round-ended cylinder shape what be formed with wide diameter portion 14, the rigid of wide diameter portion 14 side (basic point 13b2 side) of surrounding wall portion 13b is higher than wide diameter portion 14.
Therefore, when surrounding wall portion 13b cuts off by the basic point 13b2 of wide diameter portion 14, suitably can prevent due to the stress of effect when cutting off and make the situation that wide diameter portion 14 side of surrounding wall portion 13b is out of shape, and can with the horizontal line Z with bottom 13a level for boundary is by wide diameter portion 14 and surrounding wall portion 13b disjunction.
In addition, the rigid of wide diameter portion 14 side of surrounding wall portion 13b is higher than wide diameter portion 14, and thus, during from end on observation, the shape of the surrounding wall portion 13b of new base material 13A is the circle identical with the surrounding wall portion 13b of the base material 13 formed before wide diameter portion 14.
At this, as long as wide diameter portion 14 is the inclination of the rigid that can improve surrounding wall portion 13b relative to the cant angle theta of bottom 13a, in the present embodiment, be roughly set as 45 °.
Fig. 4 illustrates from wide diameter portion 14 to the figure making clutch disc 16.In addition, in Fig. 4 (a) ~ (c), in the downside of the top view of each parts (wide diameter portion 14, plate-shaped member 15, clutch disc 16), in the profile (A-A profile) of each parts, be also marked with the mark of the thickness highlighting these parts in the lump.
In step S5 (with reference to Fig. 1), make the plate-shaped member 15 from being axially seen as ring-type by carrying out mold pressing (coining) to the wide diameter portion 14 obtained in step s 4 which.
At this, in the wide diameter portion 14 obtained by above-mentioned step S4, the inner circumferential 140a side of the base portion 140 of ring-type and periphery 140b, in the axially skew of the center line X of wide diameter portion 14, when Fig. 4 (a), are formed as the shape of side more top than inner circumferential side 140a, 140b side, periphery.Therefore, in the mold pressing in this step S5, in the periphery 140b lateral view in the base portion 140 of wide diameter portion 14, the direction shown in arrow mark f bends, the final plate-shaped member 15 forming ring-type.
In embodiments, the base portion 140 of ring-type is out of shape, until base portion 140 is approximately 90 ° relative to the cant angle theta 1 of the center line X of wide diameter portion 14, thus form the plate-shaped member 15 of ring-type, the axis of base portion 140 when mold pressing not to center line X is compressed significantly.
Therefore, the width W 2 of the radial direction of the base portion 150 of the ring-type in plate-shaped member 15 is the width that the width ha of the radial direction of the base portion 140 than the ring-type in wide diameter portion 14 is slightly large, but the inner circumferential 150a of base portion 150 and periphery 150b from end on observation to shape not from the end on observation of the inner circumferential 140a of wide diameter portion 14 and periphery 140b to shape be out of shape significantly, remain circular.
In step s 6, by carrying out punching press stamping-out to the plate-shaped member 15 of ring-type, the inner circumferential being formed in the base portion 160 of ring-type is formed with the clutch disc 16 of teeth portion 161.Now, the inner circumferential 150a side of plate-shaped member 15 and tiny segment 15a, 15b of 150b side, periphery go out of use as residual parts 17.
At this, in the base portion 150 shown in Fig. 4 (b), usage flag 15a represents the scope of the formation teeth portion 161 in the inner circumferential 150a of base portion 150, eliminates the diagram of the shape of the final teeth portion 161 formed.
At this, in above-mentioned step 4, except wide diameter portion 14, obtain the new base material 13A having round-ended cylinder shape of the height reduction of surrounding wall portion 13b.
This base material 13A in the step s 7, confirm the height of surrounding wall portion 13b be whether can newly be formed wide diameter portion 14 height, whether be namely can the height of expanding.
When for can the height of expanding, expanding is carried out to new base material 13A, forms new clutch disc 16 by the wide diameter portion 14 formed by expanding.
Therefore, the height of the surrounding wall portion 13b in new base material is can during the height of expanding, owing to repeatedly carrying out expanding (Fig. 1: S3) and segmentation (Fig. 1: S4), so be made up of initial sheet metal 10 according to the clutch disc 16 repeatedly performing the regulation sheet number that number of times determines of expanding.
Fig. 5 be illustrate by formed at first have the base material 13 of round-ended cylinder shape to perform expanding (Fig. 1: S3) and segmentation (Fig. 1: S4) at every turn time obtain new base material 13A ..., 13X figure.
At this, in the manufacture method of clutch disc 16 in embodiments, can obtain perform at every turn expanding (Fig. 1: S3) and segmentation (Fig. 1: S4) time, reduce before the aspect ratio of surrounding wall portion 13b have round-ended cylinder shape base material 13A ..., 13X.
Therefore, if carry out repeatedly expanding (Fig. 1: S3) and segmentation (Fig. 1: S4), then the height hx (with reference to Fig. 5 (d)) having the height of the surrounding wall portion 13b of round-ended cylinder parts to reach can not to implement expanding newly obtained.
In these cases, the base material 13X with the surrounding wall portion 13b of the height hx that can not carry out expanding goes out of use (Fig. 1: S7).
At this, in embodiments, will the height reduction of the surrounding wall portion 13b of the base material 13 of round-ended cylinder shape be had and make clutch disc 16, even if but the height reduction of surrounding wall portion 13b, the rigidity of the lower end side of surrounding wall portion 13b is also kept by bottom 13a.
Therefore, in the base material 13X-1 before the height of surrounding wall portion 13b becomes the height hx that can not implement expanding, although the height hx-1 of surrounding wall portion 13b is low, the rigid of surrounding wall portion 13b is guaranteed by bottom 13a.
Therefore, even if carry out expanding to above-mentioned base material 13X-1, the shape of surrounding wall portion 13b and wide diameter portion 14 also can not significantly avalanche.In addition, during segmentation after expanding, even if at the stress of surrounding wall portion 13b acting shear etc., the shape of the wide diameter portion 14 be separated from surrounding wall portion 13b also can not significantly avalanche.
In the above-described embodiment, illustrate that the metallic plate 10 by one piece of rectangular shape manufactures the situation of clutch disc 16, but also can prepare the base material be only made up of the surrounding wall portion 13b of cylindrical shape, manufacture clutch disc 16 by the base material be only made up of the surrounding wall portion 13b of this cylindrical shape.
In addition, also can not prepare the metallic plate 10 of one piece of rectangular shape, and prepare one piece of circular metallic plate (plate-shaped member 11), manufacture clutch disc 16 by this plate-shaped member 11.
As mentioned above, in embodiments, comprise following step: in the base material 13 of surrounding wall portion 13b with tubular, form the wide diameter portion formation process (Fig. 1: S3) to the expanding wide diameter portion 14 of this end 13b1 in one end (end 13b1) side of the length direction of surrounding wall portion 13b;
The base material 13 ' being formed with wide diameter portion 14 is divided into the segmentation process (Fig. 1: S4) of wide diameter portion 14 and the new base material 13A except wide diameter portion 14;
The mold pressing procedure (Fig. 1: S5) of the plate-shaped member 15 of ring-type is made by carrying out mold pressing to the wide diameter portion 14 obtained by segmentation process;
The blank operation (Fig. 1: S6) in inner circumferential with the clutch disc 16 of the ring-type of teeth portion 161 is obtained by carrying out stamping-out to the plate-shaped member 15 of ring-type,
During length on the length direction of the surrounding wall portion 13b of the new base material obtained by segmentation process is longer than the length (hx) that can not form wide diameter portion 14 in wide diameter portion formation process, to obtained by segmentation process new base material 13A ..., 13X-1 performs wide diameter portion formation process, segmentation process, stamping procedure, blank operation, make clutch disc 16
If the length on the length direction of the surrounding wall portion 13b of the new base material 13X obtained by segmentation process is the length (hx) that can not form wide diameter portion 14, then manufacture the clutch disc 16 of the formation of being discarded by this base material 13X.
If form in this wise, during length on the length direction of the new base material 13 then obtained by segmentation process is longer than the length (hx) that can not form wide diameter portion 14, use newly obtain base material 13A ..., 13X-1 performs wide diameter portion formation process ~ blank operation, repeatedly so can obtain multiple clutch disc 16 by the one block of base material 13 prepared at first.
The base material 13X of the surrounding wall portion 13b of the length (hx) that only remaining in the base material 13 of initial preparation can not form wide diameter portion 14 finally goes out of use.Therefore, due to the part gone out of use in base material 13 can be reduced, so yield rate the clutch disc 16 of ring-type can be manufactured well.
In addition, the plate-shaped member 15 due to the ring-type obtained by base material 13 makes the clutch disc 16 of ring-type, so the intensity of the clutch disc 16 obtained becomes the rigid that the clutch disc Kp ' of the ring-type of manufacture is high than being connected by the parts P4 of arc-shaped.
Therefore, it is possible to yield rate manufactures the clutch disc of the ring-type with enough intensity well.
Particularly, the inner circumferential 140a side of the base portion 140 of ring-type and 140b side, periphery are by carrying out mold pressing to the wide diameter portion 14 of the axial dipole field at center line X, wide diameter portion 14 is out of shape, until outside diameter 140b is positioned at the radial outside of internal side diameter 140a, forms the plate-shaped member 15 of ring-type.
When manufacturing the plate-shaped member of ring-type to punching presses such as the wire rods connecting into ring-type, be difficult to the inner circumferential of the plate-shaped member of the ring-type controlling to obtain and the shape of periphery, so be difficult to the plate-shaped member of the ring-type of the width of the radial direction stably made needed for the stamping-out with clutch disc.
If form as described above, then when mold pressing, due to the axis of the base portion 140 of wide diameter portion 14 to center line X is compressed significantly, so the inner circumferential 150a of the base portion 150 of the plate-shaped member 15 obtained and periphery 150b from end on observation to shape being out of shape significantly from the shape of end on observation not from the inner circumferential 140a of wide diameter portion 14 and periphery 140b, be retained as circular.
Therefore, the width W 2 of the base portion 150 of the plate-shaped member 15 obtained does not change significantly from the width ha of the base portion 140 of wide diameter portion 14, so stably can obtain the plate-shaped member 15 of the ring-type of the radial width had needed for stamping-out clutch disc 16.
The base material with the surrounding wall portion 13b of tubular is the base material 13 having round-ended cylinder shape that another side of surrounding wall portion 13b is sealed by bottom 13a, before wide diameter portion formation process, have by carrying out drawing to the plate-shaped member 11 of circle and be formed with the drawing sequence of the base material 13 of round-ended cylinder shape.
In the manufacture method of the clutch disc 16 of above-mentioned embodiment, when often obtaining new base material 13, the height reduction of surrounding wall portion 13b.
When base material 13 is only made up of the surrounding wall portion 13b of tubular, due to the reduction of the height along with surrounding wall portion 13b, the rigid of base material 13 reduces, even if so the length of surrounding wall portion 13b is can the length of shape wide diameter portion 14, deviation can be produced in shape at the wide diameter portion 14 obtained by base material 13 and plate-shaped member 15.
If the base material having round-ended cylinder shape that another side of base material 13 surrounding wall portion 13b is sealed by bottom 13a, even if the then height reduction of surrounding wall portion 13b, also the rigid of surrounding wall portion 13b can be guaranteed by bottom 13a, so the deviation of the shape of the wide diameter portion 14 and plate-shaped member 15 obtained by base material 13 can be suppressed.
Thus, owing to base material can be used for making of clutch disc 16, until surrounding wall portion 13b becomes the length that can not form wide diameter portion 14, so the part gone out of use in base material 13 can be reduced, yield rate the clutch disc 16 of ring-type can be manufactured well.
Before drawing sequence, also possesses the circular blank operation obtaining circular plate-shaped member 11 by carrying out stamping-out to the metallic plate 10 of rectangular shape.
When base material 13 is only made up of the surrounding wall portion 13b of ring-type, the part finally gone out of use can be suppressed to Min. in base material 13, but the base material 13 be only made up of the surrounding wall portion 13b of ring-type is compared with metallic plate 10, purchase cost improves.
By carrying out the conglobate plate-shaped member 11 of stamping-out system to the metallic plate 10 of rectangular shape, and by carrying out drawing to this plate-shaped member 11 and making the base material 13 of round-ended cylinder shape, then surrounding's (residual parts 12) of the plate-shaped member 11 in metallic plate 10 is not used in the manufacture of clutch disc 16 and goes out of use.
But, even if the purchase cost of metallic plate 10 considers the cost of the residual parts 12 gone out of use, the circular blank operation newly increased and drawing sequence, also lower than the purchase cost of the base material be only made up of the surrounding wall portion 13b of ring-type, so clutch disc 16 can be made more at an easy rate as a whole.
At this, in segmentation process, be formed as the horizontal line Z (formation that the basic point 13b2 (basic point of the warpage in surrounding wall portion 13b) of the wide diameter portion 14 in surrounding wall portion 13b cuts off by reference Fig. 3 (b) along the bottom 13a level with base material 13.
Have in the base material 13 ' of round-ended cylinder shape what be formed with wide diameter portion 14, the rigid of wide diameter portion 14 side (the basic point 13b2 side of wide diameter portion 14) of surrounding wall portion 13b is higher than wide diameter portion 14.
Therefore, surrounding wall portion 13b cuts off by the basic point 13b2 of the wide diameter portion 14 in surrounding wall portion 13b, suitably can prevent thus due to the stress of the effect when cutting off and make the situation that wide diameter portion 14 side of surrounding wall portion 13b is out of shape.
Thus, newly obtain base material 13A ..., in 13X, this base material 13A ... surrounding wall portion 13b from end on observation to shape be the shape (circle) identical with the surrounding wall portion 13b of the base material 13 formed before wide diameter portion 14.
Therefore, by newly obtain base material 13A ..., wide diameter portion 14 that 13X-1 makes, ring-type plate-shaped member 15 from end on observation to shape to be formed with the wide diameter portion 14 be made up of initial base material 13, shape that the plate-shaped member 15 of ring-type is roughly the same.Therefore, because the form variations of the wide diameter portion 14 that obtained by a base material 13 and plate-shaped member 15 is few, so yield rate the clutch disc 16 finally obtained can be made well.
In addition, in the above-described embodiment, illustrate the situation of the clutch disc 16 in inner circumferential side with teeth portion 161, but above-mentioned manufacture method is also applicable to have the clutch disc of teeth portion at outer circumferential side and have the manufacture of clutch disc of teeth portion in inner circumferential side and outer circumferential side.
In addition, in the above-described embodiment, example describes by carrying out mold pressing to the wide diameter portion 14 obtained by segmentation process, makes the situation of the plate-shaped member 15 of ring-type, but also can be made the plate-shaped member 15 of ring-type by punching press.
In the above cases, by utilizing the pressure not making the base portion 140 of ring-type compress significantly to the axis of center line X to carry out punching press, in the same manner as the situation of mold pressing, the form variations of the plate-shaped member 15 finally obtained can be reduced.
Claims (4)
1. a manufacture method for clutch disc, is characterized in that, comprises following operation:
Wide diameter portion formation process, its end side at the described length direction of the tubular base material with the end sealed by the other end of length direction forms the wide diameter portion expanding towards described one end;
Segmentation process, the tubular base material described with the end being formed with described wide diameter portion is divided into described wide diameter portion and the new tubular base material with the end except described wide diameter portion by it;
Stamping procedure, it makes the plate-shaped member of ring-type by carrying out punching press to the wide diameter portion obtained by described segmentation process;
Blank operation, it obtains the clutch disc of ring-type by carrying out stamping-out to the plate-shaped member of described ring-type,
During the length of the described length direction of the new tubular base material with the end obtained by described segmentation process is can form the length of wide diameter portion in described wide diameter portion formation process, the new tubular base material with the end obtained by described segmentation process is used to carry out described wide diameter portion formation process, described segmentation process, described stamping procedure and described blank operation.
2. the manufacture method of clutch disc as claimed in claim 1, is characterized in that,
Before described wide diameter portion formation process, possess by carrying out drawing to the plate-shaped member of circle and form the drawing sequence of described tubular base material with the end.
3. the manufacture method of clutch disc as claimed in claim 2, is characterized in that,
Before described drawing sequence, also possess by carrying out stamping-out to metallic plate and obtain the circular blank operation of the plate-shaped member of described circle.
4. the manufacture method of the clutch disc according to any one of claims 1 to 3, is characterized in that,
In described segmentation process, the tubular base material described with the end being formed with described wide diameter portion is cut off at the basic point of described wide diameter portion and is divided into described wide diameter portion and the new tubular base material with the end except described wide diameter portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012156872A JP5669788B2 (en) | 2012-07-12 | 2012-07-12 | Manufacturing method of clutch plate |
| JP2012-156872 | 2012-07-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103537540A CN103537540A (en) | 2014-01-29 |
| CN103537540B true CN103537540B (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310290182.6A Expired - Fee Related CN103537540B (en) | 2012-07-12 | 2013-07-11 | The manufacture method of clutch disc |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5669788B2 (en) |
| CN (1) | CN103537540B (en) |
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| CN1078775A (en) * | 1992-05-12 | 1993-11-24 | 本田技研工业株式会社 | The manufacture method of the friction disk of multi-disc clutch |
| JP2000042647A (en) * | 1998-07-24 | 2000-02-15 | Suncall Corp | Manufacture of ring shaped plate member |
| JP2002153932A (en) * | 2000-11-20 | 2002-05-28 | Nsk Warner Kk | Method and apparatus for manufacturing friction plate |
| CN101102858A (en) * | 2004-10-26 | 2008-01-09 | 米恩斯工业公司 | Apparatus and method for stamping and deburring clutch discs and resultant product |
| CN101410201A (en) * | 2006-03-24 | 2009-04-15 | 日本发条株式会社 | Production method for coned disk spring and clutch unit |
| CN101675264A (en) * | 2007-04-03 | 2010-03-17 | 日本发条株式会社 | Method of producing coned disc spring, and clutch device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014018802A (en) | 2014-02-03 |
| CN103537540A (en) | 2014-01-29 |
| JP5669788B2 (en) | 2015-02-18 |
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