# US 5,347,901 A · Modular tube cutting apparatus

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- Number: US 5,347,901 A
- Document ID: US5347901A
- Status: Granted
- Kind: A
- Application number: 07/924,185
- Filed: 1992-08-03
- Granted: 1994-09-20
- Earliest claimed: 1992-08-03
- Inventors: John J. Borzym
- Web page: https://patentgrep.com/patent/US5347901A

## CPC

- B23D 21/00: Machines or devices for shearing or cutting tubes (as additional equipment for deep-drawing presses B21D24/16)
- B23D 25/04: in which a cutting unit moves bodily with the work while cutting (B23D25/06 takes precedence)
- B23D 33/00: Accessories for shearing machines or shearing devices (feeding stock to machines or removing stock B21D43/00)
- Y10T 83/4763: Both members of cutting pair on same carrier
- Y10T 83/95: Machine frame
- B23D: PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR (making toothed gears or the like B23F; cutting metal by applying heat locally B23K; arrangements for copying or controlling B23Q)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An inventive tube cutting apparatus includes spaced plates which allow modular mounting of the main components of the tube cutting apparatus. The various components can be replaced and matched with other components by either changing the position that the components are mounted on the plates, or replacing the plates. An accelerator utilizes an eccentric connection to a rotary motor to provide a relatively simple drive for the die set. In an alternative accelerator, a steel belt is reversibly rotated and is fixed to drive the die set. In a powerhead assembly for actuating the die set, a pair of spaced shafts are connected through two offset links to synchronize the shafts, and maintain parallelism of the ram as it is forced downwardly into the die set.

## Claims

### Claim 1

A modular cutting apparatus comprising:
a pair of spaced plates;
a bed including a pair of spaced tracks mounted between said spaced plates;
a cutting element slidably mounted on said tracks;
an accelerator mounted to accelerate said cutting element along said tracks;
a powerhead mounted between said plates and selectively contacting said cutting element to actuate said cutting element; and
wherein said spaced plates include means to mount an adaptor plate, said adaptor plates being mounted laterally between each of said spaced plates, said adaptor plates being connected to said space plates at anyone of several vertical positions, and said powerhead being mounted to said adaptor plates, such that said adaptor plates may be changed to allow the positioning of said powerhead to be adjusted both vertically, and towards and away from said tracks.

### Claim 2 (depends on 1)

A modular cutting apparatus as recited in claim 1, wherein a feedback member is mounted along said bed to provide a feedback signal of the position and speed of said cutting element to said accelerator.

### Claim 3 (depends on 1)

A modular cutting apparatus as recited in claim 1, wherein said accelerator includes plural links.

### Claim 4 (depends on 1)

A modular cutting apparatus as recited in claim 1, wherein said drive includes a belt which is reversibly rotated to reverse the position of said cutting element on said tracks.

### Claim 5 (depends on 1)

A modular cutting apparatus as recited in claim 1, wherein the distance between said tracks is adjustable by changing the mounting position of said tracks on said side plates.

### Claim 6 (depends on 1)

A modular cutting apparatus as recited in claim 1, wherein the workpiece is a tube.

### Claim 7 (depends on 6)

A modular cutting apparatus as recited in claim 6, wherein keys connect said adaptors to said spaced plates.

### Claim 8 (depends on 1)

A modular cutting apparatus as recited in claim 1, wherein at least one key attaches said adaptor plates to said space plates at desired positions.

### Claim 9 (depends on 1)

A modular cutting apparatus as recited in claim 1, wherein there being upper and lower adapter plates each being attached to said side plates, each of said upper and lower adapter plates being secured to said side plates by keys at selected positions.