US3650411A

US3650411A - Device for finishing complementary parts

Info

Publication number: US3650411A
Application number: US887500A
Authority: US
Inventors: Walter Reis; Helmut Pfenning; Dietmar Boll
Original assignee: Individual
Current assignee: Individual
Priority date: 1967-11-21
Filing date: 1969-12-23
Publication date: 1972-03-21
Anticipated expiration: 1989-03-21
Also published as: FR2067765A5

Abstract

A device for finishing complementary die or mold parts and similar complementary parts has a base plate for supporting a part to be finished in upwardly facing position. The support plate is slidable between a lowered position in which the two parts complement or otherwise coact with each other and a raised position in which the two parts face each other spaced apart, and is also swingable into a position in which the parts are in substantially planar alignment both facing upwardly, whereby both parts are conveniently accessible for finishing.

Description

United States Patent Reis et a1. 5] Mar. 21, 1972 54] DEVICE FOR FINISHING 3,279,635 10/1966 Avery .1. ..214/313 COMPLEMENTARY PARTS FOREIGN PATENTS OR APPLICATIONS [72] Inventors: Walter Reis; Helmut Pfenning, both of 8753 obemburglMain; Dietmar Bo, 833,924 3/1952 Germany... ..2i4/313 Schippach, an of Germany 990,016 4/1965 Great Br1ta1n 100/299 [73] Assignee: said Reis, by said Pfenning and said Boll Primary Examiner-Gerald M. F orlenza Assistant Examiner-George F. Abraham [22] filed 1969 Attorney-Hane, Baxley & Spiecens [21] App]. No.1 887,500

[57] ABSTRACT 52 US. Cl ..214/1 QD, 18/16 R, 18/34 R, A device for finishing complementary die or mold parts and 72/448, 72/470, loo/DIG. 18 similar complementary parts has a base plate for supporting a [51] Int. Cl. ..B2Ij 13/10 Part to be finished in upwardly facing Position The suppt [58] Field of Search 100 [DIG 18; 18/16 R 16 C, plate is slidable between a lowered position in which the two 18/16 H, 34 R; 72/470, 481, 448; 214/315, 1 OD parts complement or otherwise coact with each other and a raised position in which the two parts face each other spaced apart, and is also swingable into a position in which the parts [56] References Cited are in substantlally planar alignment both facmg upwardly, UNITED STATES PATENTS whereby both pans are conveniently accessible for finishing.

3,263,842 8/1966 Holstein ..214/3 15 X 15 Claims, 7 Drawing Figures .9 3 1o 8 M Q PATENTEUMARZ] I972 SHEET 3 [IF 4 lawn/0m- DEVICE FOR FINISHING COMPLEMENTARY PARTS The invention relates to a device for finishing die or mold parts and other complementary parts, and more particularly, to a device of this kind in which one part to be finished such as the top part is supported by a support member which is linearly movable toward and away from a second support member supporting thereon the second part to be finished such as the bottom part, the first support member being also swingable from an operating position into a position for finishin g the part supported on said member.

The term finishing as herein used, is intended to refer to correcting irregularities or flaws as may interfere with the operation and use of the complementary parts.

BACKGROUND Devices of the general kind above referred to as now known are generally so arranged that the first support member is suspended at an angle of about 90 relative to the second support member when the first support member is fully swung out as much as possible. The part supported by the first support member is then hanging just outside of the device, and as a result at least some portions of this part are not or at least not conveniently accessible for finishing. Convenient accessibility of the swung out suspended part is particularly important when the device such as a press is designed for finishing large parts. In such case, the operator may have to step upon an elevated platform as otherwise he would not be able to reach all positions of the part.

The aforedescribed limited positioning of the part supported by the first support member which leaves this part hanging alongside the device is not satisfactory as the operator must not only mount an elevated platform, but must work overhead as the part is likely to be located at least partly above the level of his head.

THE INVENTION It is a broad object of the invention to provide a novel and improved finishing device or press of the general kind above referred to which allows convenient accessibility not only of the lower part to be finished, that is, the part supported by the second support member, but also of the upper part supported by the first support member, even if the overall dimensions of the parts and hence of the device or press are very large.

A more specific object of the invention is to provide a novel and improved finishing device or press which permits placement of the lower part in a position in which both parts are accessible with equal ease.

SUMMARY OF THE INVENTION The afore-pointed-out objects, features and advantages, and other objects, features and advantages which will be pointed out hereinafter and are set forth in the appended claims, are obtained by mounting the upper one of two parts to be finished on a support plate which can be swung out from a working position in which the two parts are in vertical alignment with each other into a position in which the two parts are at substantially the same level so that the upper part can be worked on and finished as conveniently as the lower part.

The device or press of the invention also provides for lowering of the upper part into complementary or coacting position with the lower part for checking whether the two parts are fully satisfactory, or whether further finishing work is necessary. To effect such movement of the upper part into the position for convenient finishing, a support plate mounting this part can be swung out of the device or press by an angle of more than 90. In many cases, a pivotal movement through about 140 is sufficient, but it is sometimes preferable to provide for a pivotal movement through 180 to bring the two parts into planar alignment. Guide and support means for guiding the swingable support plate while being pivoted out of the device or press are preferably provided.

DETAILED DESCRIPTION OF THE INVENTION In the accompanying drawing, several preferred embodiments of the invention are shown by way of illustration, and not by way of limitation.

In the drawing:

FIG. 1 is a diagrammatic elevational view of a finishing device or press showing the two parts to be finished in positions for movement into coaction with each other;

FIG. 2 is a similar elevational view of the device or press showing the lower part to be finished in a laterally displaced position and the support plate for the upper part swung out of the device or press by an angle of more than 90";

FIG. 3 is an elevational view similar to FIG. 2, but showing the support plate and the upper part thereon moved out of the device or press by an additional angle;

FIG. 4 is an elevational view similar to FIG. 3, but showing the support plate and the upper part thereon in a position swung out by an angle of 180, so that the two parts are substantially coplanar disposed, both facing upwardly;

FIG. 5 is an elevational diagrammatic view of a device or press with a modified drive means for pivoting and guiding the support plate supporting the upper part to be finished;

FIG. 6 is an elevational diagrammatic view of a finishing device or press in which the guide and drive means for the pivotal support plate are further modified; and

FIG. 7 is a diagrammatic elevational view of a modification of the means for supporting the pivotal support plate for the upper part to be finished.

Referring now to the figures more in detail, the exemplified finishing device or press as shown in FIGS. 1 to 4 comprises a crossbar or head 1 fixedly mounted on guide members such as v uprights or columns la. The columns support displaceably thereon a slidable member or ram 2, the bottom side of which has hinged thereto by means of a hinge 4 a support plate 3. Member 2 and plate 3 are up and down movable from the uppermost position of FIG. 1 into the lowermost position of FIG. 4.

The device is shown vertically arranged. Such arrangement is often the preferred one, but it should be understood that it is also within the concept of the invention to arrange members la in horizontal position in which case member 2 and plate 3 are horizontally displaceable.

Pivotal plate 3 is held in the horizontal position of FIG. 1 by a drive means 5 which when operated effects the pivotal movements of the plate into the positions shown in FIGS. 2 to 4, and more fully described hereinafter.

The base part of the device or press comprises a carriage or sled 6 which can be laterally displaced on a base member 7 such as a table from the position of FIG. 1 into the position of FIG. 2.

Carriage 6 supports a part 8 to be finished. This part may be visualized as the lower half of a die or mold facing upwardly. A complementary upper part 9 of the die or mold is suitably mounted facing downwardly on support plate 3.

Slidable member 2 and plate 3 are lowered into the position in which the

parts

8 and 9 engage with each other. A check can then be readily made whether the two parts have the required complementary shape -for instance, two mold parts should engage with each other without gaps or openings therebetween. Checking of the two parts can be effected by injecting between the parts a suitable medium, for instance, by means of a conventional pressurized spray device, as is diagrammatically indicated at 30. The check medium is selected in accordance with the type of work involved; generally, it should be a medium which can be injected at low temperature between the two parts and is harmless so that working men nearby are not injured if the two parts are not tight and part of the check medium is blown out or leaks out.

It may be pointed out in this connection that a device as hereinbefore referred to may be a heavy press or ram weighing several tons so that the forces to be controlled are very considerable. The two

parts

8 and 9 may be die parts for shaping metal or other material between the two parts when the slidable member 2 is lowered in the manner of a ram against an anvil, coacting with carriage 6 and table 7 acting as anvil.

A drive for moving the slidable member 2 up and down and a drive 5 for pivoting support plate 3 may be visualized as hydraulic drives, but of course other suitable drives can also be used.

The operation of the hereinbefore described device or press is apparent from FIGS. 1 to 4.

As stated before, FIG. 1 shows the device or press in a position in which

parts

8 and 9, which may be visualized as having been finished, are ready for coaction with each other.

Let it now be assumed that

parts

8 and 9 are to be finished. FIG. 2 shows the hydraulic drive 5 operated for pivoting plate 3 from the position of FIG. 1 into the position of FIG. 2. Such pivoting of the plate is effected by means of a connecting rod 13 linked by a pin 14 to one end of plate 3, the other end of which is linked to slidable member 2 by hinge 4 as previously described. The drive 5 itself, or more specifically, its cylinder 50, is guided and supported by a rest 16 on a bracket 15 extending from crossbar 1. As it is seen in FIG. 2, pivoting of plate 3 through an angle of more than 90 swings the plate clear out of the way ofcolumns la.

FIG. 2 also shows that the carriage 6 is laterally displaced into a position spaced apart from the columns. Displacement of the carriage which is supported on rollers or wheels 6a can be effected manually or preferably, by a drive means shown as a motor 35 releasably coupled to an axle of wheels or rollers 60, as it is diagrammatically indicated in FIG. 1. The carriage is preferably displaced prior to the pivoting of plate 3.

Downward movement of slidable member 2 is effected by actuating drive 10. As is evident, such downward movement of member 2 causes plate 3 to swing out still further relative to columns la. Prior to the lowering of member 2, connecting rod 13 is released from plate 3 for return into cylinder 5a to permit a free swinging movement of the plate. The now free edge of plate 3 may slide along any suitable support surface, but is is preferable to guide the edge on guide tracks 12, rollers 11 facilitating the movement of the edge along the tracks. Guide 12 is shown as an extension of table 7 and preferably hinged to the table so that it can be folded back when not in use. Cylinder 5a moves along with member 2 and is guided by rest 16 while moving downwardly or upwardly.

FIG. 4 shows the lower end position of plate 3 in which the same rests on guide tracks 12 in a position substantially coplanar with carriage 6. The mold or die part 9 is now positioned facing upwardly and is freely accessible, as is mold or die part 8. FIG. 4 also shows that cylinder 5a is now in an approximately vertical position so that it does not interfere with working on mold or die part 8.

Part 8, together with its carriage, may be lifted if necessary by suitable hoist means. There is schematically shown by way of example a hoist motor 40 secured by a bracket 41 to table 7. A frame 42 serves to support hoist

ropes

43 and 44 guided over suitable pulleys 45 and detachably secured to carriage 6, as it is indicated at 46.

Referring to FIG. 5, the hydraulic drive means 5 and more specifically, the cylinder 5a thereof, is hinged to about the middle of sliding member or ram 2. As this member is lowered, the cylinder is guided by an abutment surface 17 on crossbar l.

The figure shows the working position of the device or press in full lines, the movable parts being shown in an intermediate position (corresponding to FIG. 2) by dashed-dotted lines, and in the end position (corresponding to FIG. 4) by dashed lines.

According to FIG. 6, cylinder 5a' of hydraulic drive means 5 is guided by a rope or chain 18 attached at one end to sliding member or ram 2 and at the other end to cylinder 5a. An intermediate point of the rope is guided over a pulley 19 on crossbar 1.

The fully raised position of member 2 and cylinder 5a is shown in full lines and the lowered position of the member and the cylinder is shown in dashed lines. As previously explained, the nearly vertical position of the cylinder when lowered, serves to provide a clear space for working on die or mold part 8.

To facilitate working on the upper die or mold part 9 when plate 3 is tilted out of its substantially horizontal position (see FIG. 1) through an angle of more than (see FIG. 2), the plate is supported and guided by guide 12 pivoted to table 7, as already mentioned. The guide can also be mounted separate from the device or press either on the floor or on a separate platform.

As previously described, pivoting of support plate 3 is again effected by means of hydraulic drive means 5 and the connecting rod 13 which is linked at one end to plate 3 by pin 14. The same end of the plate also mounts rolls or coasters 11.

FIG. 7 shows an arrangement in which pin 14 is held in a claw 20 on the end of rod 13. The claw is open on its side facing support plate 3 and formed with a guide surface 21, the purpose of which will be more fully explained hereinafter. Guide 12 extending from table 7 mounts a curved guide surface 23.

The figure shows support plate 3 and claw 20 in three different operational positions designated by A, B and C.

In the pivotal position A, pin 14 is still retained in claw 20. As connecting rod 13 is being further pushed out of the cylinder of drive 5, the lower dead point position of plate 3 and the mold or die part 9 (not shown in FIG. 7) thereon is finally reached.

Upon continued outward movement of rod 13 beyond this dead point position, the position B is reached. In this position guide surface 21 becomes engaged with pin 14 and will cause the pin to slide out of the claw when the weight of rod 13 swings the same back into the vertical position. The curved surface 23 serves to assure that pin 14 will actually leave claw 20 as will be more fully explained hereinafter.

After the position B is reached, the sliding member or ram 2 is preferably lowered by means of its drive (drive 10) in the direction of arrow 22, so that the support plate 3 eventually reaches the position in which its roller 11 rests on curved surface 23. Further lowering of member or ram 2 now moves plate 3 into the position C and finally into its lower horizontal position (see FIG. 4).

Pin 14 is freed of claw 20 as the rod 13 and thus the claw participate in the movement of sliding member or ram 2 while pin 14 continues its relative movement in the direction of the pivoting of plate 3.

The control of

drives

5 and 10 of the press or device is preferably so arranged that the aforedescribed sequence of movements of the plate while being pivoted and also reaching either end position is assured and occurs automatically in both directions.

The invention is not limited to the illustrated and described embodiments. The details of the structure can be modified in accordance with specific requirements without departing from the basic concept of the invention. Moreover, as stated before, the entire press or device may be arranged in horizontal position, that is, in a position in which the members la are horizontal while the crossbar 1, the sliding member or ram 2 and the table 7 are vertical.

What is claimed is:

l. A device for finishing complementary mold parts, die parts and other complementary parts, said device comprising in combination:

a base member for supporting a first part to be finished;

a slidable member; 1

guide members slidably guiding said slidable member for linearly displacing the same relative to the base member;

a support plate for supporting thereon a second part to be hinge means hinging the support plate to the slidable member, said support plate being pivotal between a position substantially parallel to the slidable member and an angular position more than 90 out of said parallel position; and

a guide means extending from said base member substantially planar therewith, said guide means constituting a support and a guide for the support plate as the same is being pivoted relative to the slidable member.

2. The device according to claim 1 wherein said support plate is pivotal through an angle of about 180 out of said parallel position.

3. The device according to claim 1 wherein said guide means is hinged to the base member.

4. The device according to claim 1 wherein said pivotal support plate is hinged at one edge to the slidable member, and wherein roller means are mounted at an opposite edge of the support plate, said roller means engaging said guide means during pivoting of the support plate.

5. The device according to claim 1 and comprising a first drive means including a connecting rod, and hinge means linking said connecting rod to said pivotal support plate, and a second drive means drivingly coupled to said slidable member at about the middle thereof for displacing said member, said first drive means being supported by said slidable member.

6. The device according to claim 5 wherein said hinge means are releasable.

7. The device according to claim 5 wherein said pivotal support plate is hinged at one edge to said slidable member, and said hinge means linking the rod to the support plate is mounted at an opposite edge of said plate.

8. The device according to claim 7 wherein a crossbar extends across said guide members attached thereto at a fixed distance from said base member, and guide means on said crossbar to guide said first drive means for controlling the angular position of the first drive means during displacement of the slidable member by the second drive means.

9. The device according to claim 8 wherein said crossbar includes an abutment member, said first drive means abutting against said abutment member when the pivotal support plate is in its angular limit position out of its position parallel to the slidable member.

10. The device according to claim 8 wherein said guide means comprises a rope secured at one end to said slidable member and at the other end to said first drive means, said rope being guided at an intermediate point by a guide means on said crossbar.

11. The device according to claim 1 wherein said guide members are uprights guiding said slidable member for lowering the same to a level just above the top level of the base member.

12. The device according to claim 1 wherein a carriage for supporting thereon said first part to be finished is displaceable on the base member for moving said carriage and the part thereon into a position laterally spaced from the guide members.

13. The device according to claim 12 wherein a drive means is coupled to the carriage for laterally displacing the same.

14. The device according to claim 12 and comprising hoist means for lifting the carriage in the laterally displaced position thereof.

15. The device according to claim 1 wherein a drive means is releasably coupled to the support plate by coupling means for pivoting the support plate, said coupling means including an open claw supported by the drive means and a pin on the plate, said pin sliding out of the claw in a predetermined pivotal position of the support plate but remaining engaged therewith in all other pivotal positions of the plate.

Claims

1. A device for finishing complementary mold parts, die parts and other complementary parts, said device comprising in combination: a base member for supporting a first part to be finished; a slidable member; guide members slidably guiding said slidable member for linearly displacing the same relative to the base member; a support plate for supporting thereon a second part to be finished; hinge means hinging the support plate to the slidable member, said support plate being pivotal between a position substantially parallel to the slidable member and an angular position more than 90* out of said parallel position; and a guide means extending from said base member substantially planar therewith, said guide means constituting a support and a guide for the support plate as the same is being pivoted relative to the slidable member.

2. The device according to claim 1 wherein said support plate is pivotal through an angle of about 180* out of said parallel position.

6. The device according to claim 5 wherein said hinge means are releasable.