US1753680A - Apparatus for expanding cup-shaped members - Google Patents

Description

"April 8, 1930. I J. E: BATIE 1,753,680

APPARATUS FOR EXPANDING 6UP SHAPED MEMBERS Filed May 2, 1927 L51 7 9 2J2? /Z\ /7 7 gvweutoz Pa tented Apr. 1930 JOSEPH E- BA'IIE OI' DE'I'BDIT, MICHIGAN, ASSIGITOB 1'0 KEDSEY-HAYES WHEEL 003 rona'rioir, on amazon, ,incnieaiv, a conronarioiv or NEW YORK AIPABATUB I'OB EX PANDI NG CUP-MED MEMBERS Application filed May 2,1927. Serial No. 188,878;

The invention relates to apparatus for expanding cup-shaped members and refers more particularly to apparatus of the hydraulic type. One of. the objects of the invention is to so construct the apparatus that the liquid for expanding the cup-shaped memberis automatically admitted to the cupshaped member during the operation of the apparatus. Another object is to construct m the apparatus so that it will automatically force the liquid into the cup-shaped member to expand the latter. A further object is to so construct the apparatus that the means for automatically conducting the liquid to the cup-shaped member, the means for forcing the liquid into the cup-shaped member and the means for'autoniatically controllin the pressure of the liquid form a unit. ith these as wellas other objects in view, the invention resides in the novel-features of construction and combinations and arrangements of parts asmore fully hereinafter set .forth;

In the drawings e Figure 1 is a median section through an apparatus embodying my invention;

igures 2 and'3 are cross sections respectively on the lines 2-2 and 3- 3 of Figure 1. The apparatus herewith shown operates upon a sheet metal cup-shaped member form-.

ing part of .the hub shell of a vehicle wire wheel. 1 is the stationary die-shoe, 2 the die holder vertically slidable-in the shoe and 3 a rubber bumper located below the shoe and yieldably carrying the holder through the rods 4 which extend through "the shoe. The die is formed of the sectional die blocks 5 slidably mounted in the holder 2 and forming when in their lowermost positions a continuous ring having an 'inner contour corre sponding to the desired completed outer contour of the cup-shaped member. The cup-shaped member'- when inserted intothe die has the'imperforate bottbm 6 which is lowerb most, the main cylindrical portion 7 connecting into the bottom, the beveled or flared annular shoulder 8 connecting into the main cylindrical'portion' and the enlarged eylin-.

drical portion 9. connecting into the annular shoulder, the annular shoulder being near the edge of the cup-shaped member. The enis engageable by acorresponding face 28 upon larged cylindrical portion, the annular shoulder and the part of the cylindrical portion ad acent the annular shoulder fit corresponding bearin faces upon the die blocks I 5 when in their owermost positions, but the remaining art of the cup-shaped member must be re ashioned;

For cooperating with the die formed by .the die blocks 5, I have provided the holder 1 10 mounted upon the ram 11 of a vertical press. This holder is. hollow having the axial recess 12. 13 is a plunger vertically slidable'within the recess 12 and comprising the body 14 and the cup-shaped packing 15 secured to the upper end of the body by the plate 16 and slidably engageable with the wall of the recess in the holder. The lunger also comprises the forming member 17 which is threaded upon .the' reduced lower end 18 of the body and has the reduced cylindrical lower end portion 19 extending below the reduced lower end 18 andthe beveled\annular shoulder 20 connecting into-the d of the reduced lower end 19. The reduced lower end 19 is engageable with thepart of the cylindrical portion 7 of the on -shaped; member adjacent its annular shoul er 8' and the annular shoulder 20 is' engageable with .the annular shoulder of the cup-shaped memberl and adapted to sea For admitting liquid such as water to the portion of the cup-shaped member to be fashioned, I have provided the valve 21 which is carried by the plunger 13'and hasthe 5 head 22 and the'stem 23. The body 14 of the plunger is formed withan axial opening hav- 7 ing'the enlarged cylindrical upper portion 24 and the reduced cylindrical lower ortion 25. The plate 16. isalso provided wit the axial iorm' therewith a liquid "30 Jopenmg 26 registering with the enlarged upper portion 24. The part of the body 14 tween the portions of difierent diameters of the opening has the annular seat 27 which the lower part of the valve head 22. The re- 1 duced cylindrical portion 25 of the opening is elongated to provide an extended bearing for the valve stem 23 so that rocking of the valve and consequent impairment of its seating is avoided. The valve stem has the axial bore29, the transverse openings 30 and 31 at its upper end and below the valve head 22 and the transverse openings 33 near its lower end, the former openings being the inlet openings and the latterthe outlet openings. 34 is a block threaded upon the lower end of the valve stein and of a size to pass through the cylindrical portion 7 of the cup-shaped member and engage the bottom 6. The top of this block and also the bottom of the forming member 17 are formed with cooperating radial grooves 35 and 36, respectively forming passageways therebetween for water passin out through the outlet openings 33, this being essential to provide for the introduction of the water into the cup-shaped member inasmuch as the block is against the bottom of the cup-shaped member and practically seals escape of water from the lower end of the valve stem.

In operation, the apparatus as thus far described functions in the following manner. Assuming the cup-shaped member and the die blocks to be in position and the plunger 13 in itslowermost position, at which time it is held from disengagement from the holder 10 by the annular plate 37, the valve to be seated and the chamber in the holder formed by the recess 12 above the plunger to be filled with water, the ram 11 is lowered toward the die and the block 34 first comes into contact with the bottom 6 of the cup-shaped member to unseat the valve, after which water is admitted into the cup-shaped member and displaces the airtherein. The annular shoulder 20 of the plunger is then brought into sealing contact with the annular shoulder 8 of the cup-shaped member and upon continued downward movement-of the ram the holder 10 moves relative to the plunger and forces the water into the cup-shaped member to expand the same against the die blocks 5.

ting water to the chamber formed within the holder 10 and also for the purpose of automatically controlling the pressure of the waterexerted. upon the cup-shaped member during the downward movement of the holder 10 relative to the plunger 13, I have provided the fitting 38 which is mounted upon the holder 10 and communicates with the upper end of the recess 12 through the assageway.

39 formed in the holder. This tting. 38 is provided with the longitudinal passageway 40 and the transverse passageways 41 and 42 connecting into the passageway 40. The passageway 41 is flexibly connected to a suitable source of water supply while the passageway 42 is flexibly connected to a suitable drain. 43 is a check valve in the nature of a ball .for automatically preventing backward flow of the water from the passageway 40 to the passageway 41, and 44 is a pressure valve yieldably preventing passage of the Water from the passageway 40 to the assageway 42. This latter valve is yieldably held to its seat by the coil spring 45, the pressure of which may be suitably adjusted as by means of the plate 46 abutting the spring-and the nuts 47 abutting the plate and threaded upon the studs 48. 7

It will now be seen that the pressure of the water exerted during the downward movement of the ram upon the cup-sha ed member by reason of the movement of t e holder 10 relative to the plunger 13 is controlled by the valve 44 so that excess pressure is avoided. It will also be seen that upon the upward movement of the ram water is automatically admitted into the chamber formed in the holder to make the apparatus ready for the next operation.

WhatI claim as my invention is:

1. In an apparatus for expanding cupshaped members, the combination with a die for receiving a cup-shaped member, of a holder movable toward said die, a plunger carried by and movable relative to said holder and engageable with the cup-shaped member, means dependent upon the movement of said plunger for controlling the passage of liquid into the cup-shaped member and the movement of said holder relative to said plunger, said holder operating to force the liquid into the cup-shaped member to expand the same against said die, and means operable when a predetermined pressure. of the liquid exerted upon the cup-shaped member has been reached to automatically relieve this pressure.

' 2. In an apparatus shaped members, the combination with a die for receiving a cup-shaped member having shaped member, and means carried by said For the purpose of automatically admitmember and engageable with the bottom of said cup-shaped member prior to sealing engagement between said member and the annular shoulder of said cup-shaped member for controlling the passage of li uid into said cup-shaped member to expand t 1e same.

3. In an apparatus for expanding cupshaped members, the combination with a die for receiving a cup-shaped member, of a hollow holder movable toward said die, a plunger slidable within said holder and engageable with the cup-shaped'member, a valve carried by said plunger for controlling the passage of licglid from said holder into the cup-shaped mem er, and means upon said holder for automatically relieving the pressureof the liquid therewithin.

4. In an apparatus for expanding cupshaped members, the combinatlon with a die for, receiving a cup-shaped member, of a hollowholder movable toward and away from said die, a' plunger slidable within said holdfor expanding cuper and engageablewith the on shaped memr, a valve carried by said unger for controlling the passage of liqui from said holder into the cup-shaped member upon move ment of said holder toward said die, means upon said holder for automatically controlling the pressure of the li uid exerted upon the cup-shaped member during the movement of said holder toward said die, and means upon said holder for automatically supplying'liquid to said holder upon movement thereof away from said die.

5. In an apparatus for expanding cupshaped members, the combination wit a die for receivin a. cup-shaped member, of a holder mova 1e toward said die, a plun er slidable within said'holder and enga 'ea 1e with the cup-shaped member, said p unger having an axial opening therethrough pro; viding an elongated bearing surface, and a valve carried b! said plunger for controllin the passage 0 liquid into the cup-shaped member, said valve having a hollow stem engaging the elongated bearin surface of said plunger and being provide with inlet and outlet openings adapted to be ositioned be: yond the ends of the elongate bearing surface of said plunger.

6. In an apparatus for expanding, cu shaped members, the combination with a (fie for receiving a cup-shaped member having an annular'shoulder near its edge, of a hollow holder movable toward said die, a plun er slidable within said holder and enga cable with the annular shoulder of said cup-s aped member, a valve carried b said lunger for controlling the passage 0 liquid from said holder into the cup-shaped member upon movement of said holder towa rdsaid die, and a'block secured to said valve and engageable with the bottom of the cup-shaped member to open said valve. 4

7. In an apparatus for expanding cu shaped members, the combination with a e for receiving a cup-shaped member having,

an annular shoulder near its ed of a hollow holder movable toward said 'e, a plunger slidable within said holder and enga cable with the annular shoulder of said cup-s aped member, said plunger being provided with an axial opening, a valve for controlling the passage of liquid from said holder to the cup-shaped member, said valve having a hollow shank engaging the opening 1n said plunger and transverse openmgs adapted to be positioned beyond the ends of the o ning in said plunger, and a block upon saifialve stem and engageable with the bottom of the cup-shaped member for moving said valve to open position, and means located beyond the end of said plunger engage'able with the bottom of said cup-shaped member for placing the outlet opemng in said valve in communication with the interior 9 cupshaped member.

- die for positively I 8. In an apparatus for expan cu shaped members, the combinatlonfwit a all; for receiving a cup-shaped member, of a member movable toward said die, means for auto matically admitting liquid to the cup-shaped member up on movement of said member toward said die, and means for automatically relieving the pressure of the liquid exerted upon the cup-shaped member-when the same has exceeded a predetermined amount.

9. In an apparatus for expanding on shaped members, the combination with a 1e for receiving a cup-shaped member, of a ram. movable toward said die, and means carried by said ram for automatically admitting li ber movable toward said die, a valve carried by said member for admitting liquid to the b cup-shaped member, and means operable u n movement of said member toward the moving said valve to open position.

11. In an apparatus for expanding 0135- I shaped members, the combination with a for receiving a cup-shaped member, of a ram movable towards said die, and a' valve carried by said ram for controlling the flow of fluid to the cup-shaped member, said valve being positively actuated upon movement of the ram. toward-the die to admit fluid to the cupshaped member. s

12. In an apparatus for expanding 01(15- shaped members, the combination with a e for receiving a cup-shaped member, of a holder 'movable towards said die and adapted to contain a supply of fluid under pressure, and means carried by the holder for admitting fluid to the cup-shaped member, said means including a valve normally maintained in closed sition by the pressure of the liquid in sai holder. y

13. In an apparatus .for expanding cupshaped elements, the combination with a die for receiving a cup -sha d element, of means for dischargin afluid under pressure into the cu shape element, said means including, re atively movable members and a valve associated with one of said members and posia 20 tively moved to open position upon relative.

movement of sai members for admitting fluid under pressure into said cup-shaped elemg an outlet-opening therein for the p 1 of fluid into the cup-shaped member, and

valve means having a port1on normally closing communication through said opening and having another portion operable upon movement of the member aforesaid toward the die for moving the said first mentioned portion out of sealing engagement with the opening permitting the fluidflin said member to flow into the cup-shaped member.

In testimony whereof I afiix my signature.

JOSEPH E BATIE.

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