Metal working – Plural diverse manufacturing apparatus including means for... – Binding or covering and cutting
Patent
1986-11-21
1988-08-02
Briggs, William R.
Metal working
Plural diverse manufacturing apparatus including means for...
Binding or covering and cutting
72 56, 51426, 266249, B21D 2602, B24C 900, C21D 700
Patent
active
047606304
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention is based on an apparatus for treating workpieces by means of temperature and pressure shocks through ignition of a combustible gas mixture, particularly for thermal deburring. Systems for thermal deburring are already known in various embodiments. These systems have a frame with supporting members which are arranged at defined distances from one another, one of these supporting members supporting the workpiece treatment chamber and the other supporting member supporting the closing system for the chamber, the closing cylinder being contained in the closing system. In practice, one distinguishes in principle between three types of frames for machines for thermal deburring. In the so-called "C-construction" the machine frame has the form of the letter "C". The flux of force is open. The treatment chamber is located between the open sides of the frame. In the "portal construction" the treatment chamber is fastened between two columns and tie rods at a transverse crosspiece which connects the columns with one another. Accordingly, a closed force flux occurs. Finally, there is also the so-called "plate construction". In the latter, the machine frame consists of two plates which are arranged at a defined distance from one another and are connected with one another by means of tie rods. The treatment chamber is fastened at the upper plate, while the lower plate supports the closing system for the chamber, which closing system comprises a closing cylinder with closing plate. It is common to all frame embodiments that the forces occurring during the compression and ignition of the gas mixture is transmitted via the treatment chamber and its closing system to the frame. The explosion pressure of the ignited gas mixture can reach values of up to 1000 bar. This pressure, which is very high for a short time, makes it necessary to dimension the parts of the machine frame so as to be correspondingly thick in order that the frame is not deformed when loaded. Accordingly, the system is expensive, heavy and bulky.
An apparatus for the treatment of workpieces by means of temperature and pressure shocks is known from DE-AS 17 52 440 whose treatment chamber can be closed so as to be pressure sealed by means of a threaded plate or a wedge sliding locking piece. The pressures occurring during the ignition of the gas mixture are absorbed by the treatment chamber and its closing piece so that a pressure-proof machine frame is dispensible. However, such a chamber is unsuitable for short clock times, since the loading of the chamber, its closing and opening, and the removal of the treated workpieces is extremely involved and time-consuming.
SUMMARY OF THE INVENTION
The apparatus according to the invention with the characterizing features of patent claim 1 combines the advantage that forces occurring during the compression and ignition of the gas mixture are absorbed by the workpiece treatment chamber with the advantage of a rapid, easy closing and opening of the chamber and introduction and removal of the workpieces. When the chamber walls are correspondingly dimensioned the indicated apparatus achieves loading capacity values similar to conventional systems in which the treatment chamber and its closing system are arranged in a pressure-proof frame. However, this is achieved with much lower costs in material, lower weight and space requirement because the frame, in which the treatment chamber is arranged, need only be designed, in accordance with the load, for the weight of the chamber and possible additional units. Accordingly, the entire system can be produced very inexpensively without having to sustain losses in terms of efficiency. It is emphasized in particular that a costly and disturbance-susceptible closing system with closing cylinder and closing plate for the combustion space of the chamber is dispensed with, since in order to close the combustion space a wall of the outer hollow member is used which can be brought before the combustion space opening by means of a relative mo
REFERENCES:
patent: 3319292 (1967-05-01), Witkin
patent: 3666252 (1972-05-01), Rice
patent: 3677674 (1972-07-01), Bowles
patent: 3851426 (1974-12-01), Lemelson
patent: 3901488 (1975-08-01), Riddle
patent: 3969916 (1976-07-01), Wiberg
patent: 4001977 (1977-01-01), Schrader
patent: 4085883 (1978-04-01), Deribasehl
Conrad Hans-Jurgen
Kurz Hanns
Martini Helmut
Neumann Gerhard
Briggs William R.
Robert & Bosch GmbH
Striker Michael J.
LandOfFree
Thermal deburring system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thermal deburring system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal deburring system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-705595