# US 5,704,245 A · Progressive forging machine with individually adjustable tools

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- Number: US 5,704,245 A
- Document ID: US5704245A
- Status: Granted
- Kind: A
- Application number: 08/653,668
- Filed: 1996-05-31
- Granted: 1998-01-06
- Earliest claimed: 1996-05-31
- Assignees: The National Machinery Company
- Inventors: Richard J. McClellan; Stanley J. Wasserman
- Web page: https://patentgrep.com/patent/US5704245A

## CPC

- B21J 13/03: Die mountings
- B21J 9/02: Special design or construction
- B21J 9/022: {multi-stage forging presses (handling devices B21K27/00)}
- B21J: FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES (rolling of metal B21B; making particular products by forging or pressing B21K; cladding or plating B23K; finishing surfaces by hammering B23P9/04; compacting surfaces by blasting with particulate material B24C1/10; general features of presses, presses for consolidating scrap B30B; furnaces in general F27)

## Abstract

Apparatus for separately adjusting the shut height of individual tools on a progressive forging machine "on the fly" when the machine is running. The apparatus includes individual load bearing wedge blocks on the slide for supporting associated tool cassettes. Each wedge block is displaced by a secondary wedge-like cam driven by an associated power actuator. The wedge geometry yields a compact, rugged construction. The cassettes are supported by precision located surfaces that allow desired axial adjustment without loss of alignment with opposed dies.

## Claims

### Claim 1

In a progressive forging machine having a die breast and a slide that reciprocates towards and away from the die breast, the die breast and slide having a plurality of opposed aligned work stations for carrying cooperating tools, power operated mechanism for adjusting each tool on the slide axially in a direction parallel to the direction of slide movement independently of the axial position of the other tools and maintaining the lateral alignment of a tool being axially adjusted with the associated opposed tool, a tool support at each work station on the slide, each tool support being located by precision located surfaces, said surfaces being in planes parallel to the axial direction of the work station, said tool support being in the form of a tool holder cassette and said slide including a power operated clamp for clamping said tool cassette thereon, and wherein said machine includes a separate load bearing block associated with each work station on the slide.

### Claim 2 (depends on 1)

A forging machine as set forth in claim 1, including a wedge surface responsive to motion lateral of said axial direction for producing axial motion of said load bearing block.

### Claim 3 (depends on 2)

A forging machine as set forth in claim 2, including a secondary wedge for producing said lateral motion.

### Claim 4 (depends on 2)

A forging machine as set forth in claim 2, including a power operated screw for driving said wedge surface.

### Claim 5 (depends on 3)

A forging machine as set forth in claim 3, including power actuator members for driving said wedge surface in opposite lateral directions.

### Claim 6 (depends on 5)

A forging machine as set forth in claim 5, including a hydraulic piston and cylinder actuator for moving said wedge surface in one direction.

### Claim 7 (depends on 4)

A forging machine as set forth in claim 4, wherein said power operated screw includes a rotary hydraulic motor capable of driving said wedge surface on the fly during production operation of said forging machine.

### Claim 8 (depends on 4)

A forging machine as set forth in claim 4, wherein said power operated screw is arranged to forcibly displace a secondary wedge, said secondary wedge being arranged to produce said lateral motion.

### Claim 9

A progressive forging machine having a die breast and a slide that reciprocates towards and away from the die breast, a plurality of opposing work stations on the slide and the die breast, a separate load bearing block on the slide associated with each work station, a tool support in the form of a tool holder cassette axially located on each slide work station in lateral alignment with reference to an axial direction parallel to the direction of slide movement with respect to an opposed die work station on the die breast, power operated means for separately adjusting the axial location of each of said load bearing blocks and the associated tool support cassette, locating surfaces for precisely positioning the tool support cassette at each work station so that it is in alignment with an opposing work station on the die breast and being arranged to permit axial adjustment of the associated bearing block and tool support cassette while maintaining the alignment of the tool support cassette relative to its opposed die breast work station, and a device to automatically clamp each load bearing block and the associated tool support cassette in an adjusted position, and wherein said machine includes a separate load bearing block associated with each word station on the slide.