DE1955811C3 - Pneumatically acting device for limiting the feed path of the cutting wheel in cut-off machines - Google Patents
Pneumatically acting device for limiting the feed path of the cutting wheel in cut-off machinesInfo
- Publication number
- DE1955811C3 DE1955811C3 DE19691955811 DE1955811A DE1955811C3 DE 1955811 C3 DE1955811 C3 DE 1955811C3 DE 19691955811 DE19691955811 DE 19691955811 DE 1955811 A DE1955811 A DE 1955811A DE 1955811 C3 DE1955811 C3 DE 1955811C3
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- nozzle
- medium flow
- cut
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/08—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving liquid or pneumatic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
- B23D47/08—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for bringing the circular saw blade to the workpiece or removing same therefrom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/06—Grinders for cutting-off
- B24B27/0683—Accessories therefor
- B24B27/0691—Accessories therefor for controlling the feeding or return movement of the saw
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Cleaning In General (AREA)
Description
Bei allen staubbildenden Werkzeugmaschinen ist wa 0,5 atü.Wa is 0.5 atm for all dust-forming machine tools.
es notwendig, den staubbildenden Abfall von der Be- Bei einer Ausführung gemäß der Erfindung sindit is necessary to remove the dust-forming waste from the loading. In an embodiment according to the invention
arbeitungsstelle wegzuschaffen. Ist dies schon darum weder zusätzliche Aggregate notwendig, um störende erwünscht, um eine bessere Sicht auf das zu bearbei- Staubablagerungen aus dem Steuersystem fernzuhaltende Werkstück zu gewinnen, so wird dies geradezu 65 ten, noch ist es erforderlich, die den Druckmittelzwingend, wenn Steuersysteme für die Bearbeitungs- strom aufnehmende Düse dauernd zu säubern. In maschine durch eine Anordnung betätigt werden sol- einfacher Weise werden zwei durch den austretenden len, die einen freien Durchgang des zur Steuerung Luftstrom sich laufend selbst reinigende Druckluft-remove job. This is why neither additional units are necessary to avoid disruptive desirable in order to have a better view of the dust to be processed and to be kept away from the control system To win the workpiece, this is almost 65th, nor is it necessary to constantly clean the pressure medium when control systems for the nozzle that receives the machining current. In machine can be actuated by one arrangement so- simply two are actuated by the exiting len, which allow a free passage of the compressed air which is continuously self-cleaning for the control of the air flow.
düsen verwendet, deren Luftstrom gegeneinander gerichtet ist, wobei die eine Düse mit einem Hilfsventil zur Steueiung der Arbeitsvorgänge verbunden ist. Beim Einschieben der Trennschleifscheibe zwischen . die beiden Druckluftdüsen ändert sich infolge Entfalls des von der einen Düse kommenden Luftstromes der Druck in der anderen Düse, die mit dem Steuerelement in Verbindung steht, wohd der entstehende Druckabfall den Steuervorgang einleitet.nozzles are used, the air flow of which is directed against one another is, wherein the one nozzle is connected to an auxiliary valve for the control of the work processes. When inserting the cutting wheel between. the two compressed air nozzles will change as a result of the omission of the air flow coming from one nozzle, the pressure in the other nozzle, which corresponds to the Control is related where the resulting Pressure drop initiates the control process.
Weitere Einzelheiten der Erfindung werden an Hand der Zeichnung eingehend erläutert.Further details of the invention are explained in detail with reference to the drawing.
Die beiden Düsen 1 und 2 liegen in einer Linie, so daß der aus ihnen austretende Druckmitteistrom Γ, 2' gegen die Öffnung der gegenüberliegenden Düse bläst, wobei die durch die Trennschlejfscheibe 3 bestimmte Ebene genau in der Mitte zwischen den beiden Düsen 1 und 2 liegt. Die Düsen 1 und 2 sind somit in bezug auf diese Ebene spiegelbildlich angeordnet.The two nozzles 1 and 2 are in a line so that the flow of pressure medium emerging from them Γ, 2 'blows against the opening of the opposite nozzle, whereby the through the cutting disc 3 certain level lies exactly in the middle between the two nozzles 1 and 2. The nozzles 1 and 2 are thus arranged in mirror image with respect to this plane.
Während des Trennvorganges strömt aus der Düse 1 das Druckmittel in Richtung det Pfeiles P1 nut etwa 4 atü in Richtung der Düse 2, aus der das DrucJunittel in Richtung des Pfeiles P4 mit etwa 0 5atu austritt. Hierdurch tritt vor der Düse 2 ein Stau auf, was einen Oberdruck hinter dieser Düse zur Folge hat. Wenn nun die Trennschleifscheibe 3 zwischen den Düsen 1 und 2 vorgeschoben wird, trifft sie der Druckmittelstrom 1' aus der Düse 1 und schirmt die Düse 2 gegen die Düse 1 ab, so daß in der letztgenannten der Druck P1 absinkt. Der so entstehende Druckabfall betätigt ein an die Düse 2 angeschlossenes Hilfsventil 4, das seinerseits in an sich bekannter Weise ein weiteres, in der Zeichnung nicht dargestelltes Ventil zur Steuerung der Vorschubbewegung der Trennscheibe 3 in Tätigkeit setzt. Wenn der Trennvorgang abgeschlossen ist, wird das Druckmittel zu den Steuerventilen abgesperrt und diese können erst wieder willkürlich geöffnet werden.During the separation process, the pressure medium flows out of the nozzle 1 in the direction of the arrow P 1, but about 4 atmospheres in the direction of the nozzle 2, from which the pressure medium exits in the direction of the arrow P 4 at about 0 5 atmospheres. As a result, a jam occurs in front of the nozzle 2, which results in an overpressure behind this nozzle. When the cutting wheel 3 is advanced between the nozzles 1 and 2, it is hit by the pressure medium flow 1 'from the nozzle 1 and shields the nozzle 2 from the nozzle 1, so that the pressure P 1 drops in the latter. The resulting pressure drop actuates an auxiliary valve 4 connected to the nozzle 2, which in turn activates, in a manner known per se, a further valve, not shown in the drawing, for controlling the advance movement of the cutting disc 3. When the separation process is complete, the pressure medium to the control valves is shut off and these can only be opened again at will.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (2)
schalter. 45 Der Erfindung liegt daher die Aufgabe zugrunde,The subject matter of the invention is a pneumatic device which activates the air flow and directs the control elements to limit the feed and return of the cutting wheel in a way that directs the cutting wheel into the cutting machine. In practice, however, it has been shown that an effective pressure build-up with a nozzle from which a pressure medium flow transversely to the line is difficult to achieve because the nozzle feed device of the cutting wheel is self-sufficient, has been shown in practice the risk of damage does not arise, allows the encoder to provide enough space for the cut-off wheel to pass through while creating an intermediate gap. The opening of the sensor opposite the pressure disk in the form of a medium flow receiving nozzle is also clogged because of a second nozzle into which the pressure medium flow separates the flow of dust, and one at the end of the flow of the sensor, which jeopardizes its functionality The pipeline is pressurized if it is not constantly cleaned,
switch. 45 The invention is therefore based on the object
Durchmesser der Trennschleifscheibe infolge des Diese Aufgabe wird erfindungsgemäß dadurch gegroßen Verschleißes rasch abnimmt, so daß ein stan- löst, daß aus der zweiten Düse ebenfalls ein Druckdiges Nachstellen notwendig ist. Mechanische Steuer- mittelstrom austritt und daß der Druck des aus der gliecier zur Begrenzung der Vorschubbewegung der zweiten Düse austretenden Druckmittelslromes ver-Trennschleifscheibe verbieten sich aus diesem 55 schieden vom Druck des aus der ersten Düse austre-Grunde von selbst, optische — beispielsweise Licht- tenden Druckmittelstromes ist.
schranken — sind wegen der intensiven Staubent- Nach einer bevorzugten Ausführung der Erfin-Grinding disks for cutting workpieces, the round steel or the like from British patent specification I 086 545, are today largely in known pneumatic feed limitation devices. It is difficult, however, to develop further by means of automation in such a way that the functionality of the table control elements is able to return the abrasive through the grinding wheel after the grinding process, since the grinding dust produced is not endangered.
The diameter of the cutting wheel as a result of the great wear and tear that this object is achieved according to the invention rapidly decreases, so that a stan solves that a pressure readjustment is also necessary from the second nozzle. Mechanical control medium flow exits and that the pressure of the pressure medium flow exiting from the gliecier to limit the feed movement of the second nozzle prohibit cutting-off grinding wheel from this different from the pressure exiting from the first nozzle by itself, optical - for example, light tendency Pressure medium flow is.
barriers - are due to the intensive dust removal. According to a preferred embodiment of the invention
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT1105568A AT284655B (en) | 1968-11-13 | 1968-11-13 | Cut-off machine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE1955811A1 DE1955811A1 (en) | 1970-08-06 |
DE1955811C3 true DE1955811C3 (en) | 1974-04-18 |
Family
ID=3626492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19691955811 Expired DE1955811C3 (en) | 1968-11-13 | 1969-11-06 | Pneumatically acting device for limiting the feed path of the cutting wheel in cut-off machines |
Country Status (7)
Country | Link |
---|---|
AT (1) | AT284655B (en) |
BE (1) | BE741547A (en) |
CH (1) | CH491722A (en) |
DE (1) | DE1955811C3 (en) |
FR (1) | FR2024853A1 (en) |
GB (1) | GB1287138A (en) |
SE (1) | SE346076B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114473794A (en) * | 2022-01-20 | 2022-05-13 | 李莹莹 | Clean safety platform device for chemical machinery |
CN118456291B (en) * | 2024-07-09 | 2024-09-20 | 宁波甬禾电子有限公司 | Movable grinding wheel angle coping jig |
-
1968
- 1968-11-13 AT AT1105568A patent/AT284655B/en not_active IP Right Cessation
-
1969
- 1969-11-05 CH CH1648069A patent/CH491722A/en not_active IP Right Cessation
- 1969-11-06 DE DE19691955811 patent/DE1955811C3/en not_active Expired
- 1969-11-10 SE SE1539569A patent/SE346076B/xx unknown
- 1969-11-11 GB GB5521669A patent/GB1287138A/en not_active Expired
- 1969-11-12 BE BE741547D patent/BE741547A/xx unknown
- 1969-11-13 FR FR6938963A patent/FR2024853A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB1287138A (en) | 1972-08-31 |
AT284655B (en) | 1970-09-25 |
DE1955811A1 (en) | 1970-08-06 |
FR2024853A1 (en) | 1970-09-04 |
CH491722A (en) | 1970-06-15 |
SE346076B (en) | 1972-06-26 |
BE741547A (en) | 1970-04-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
8339 | Ceased/non-payment of the annual fee |