DE615067C - Automatic feed control of the tool, especially with grinding machines - Google Patents
Automatic feed control of the tool, especially with grinding machinesInfo
- Publication number
- DE615067C DE615067C DEA68125D DEA0068125D DE615067C DE 615067 C DE615067 C DE 615067C DE A68125 D DEA68125 D DE A68125D DE A0068125 D DEA0068125 D DE A0068125D DE 615067 C DE615067 C DE 615067C
- Authority
- DE
- Germany
- Prior art keywords
- tool
- grinding machines
- feed control
- automatic feed
- measuring device
- 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
- B24B49/02—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 according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
- B24B49/04—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 according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Description
DEUTSCHES REICHGERMAN EMPIRE
,AUSGEGEBENEM
26. JUNI 1935,FROM GIVEN
June 26, 1935
REICHSPATENTAMTREICH PATENT OFFICE
PATENTSCHRIFTPATENT LETTERING
M615067 KLASSE 67 a GRUPPE 32o2 M 615067 CLASS 67 a GROUP 32o2
A 68125 XIIJ6? a Tag der Bekanntmachung über die Erteilung des Patents: 29. MaiA 68125 XIIJ6? a Date of publication of the patent grant: May 29th
Zusatz zum Patent 606183Addendum to patent 606183
Patentiert im Deutschen Reiche vom 28. Dezember 1932 ab Das Hauptpatent hat angefangen am 25. Oktober 1932.Patented in the German Empire on December 28, 1932 The main patent started on October 25, 1932.
Gegenstand des Hauptpatents 606 183 ist eine selbsttätige Vorschubsteuerung' des Werkzeuges, insbesondere bei S cMeif maschinen, bei der zum mindesten in einem Arm 'einer mit Wechselstrom gespeisten Wheatstonschen Brücke eine Spule und ein Magnetstück vorgesehen sind, welche zueinander beweglich sind und deren gegenseitige Lage durch den Taster ,verändert wird und bei der durch die hier hervorgerufene Veränderung der Potentialdifferenz der Brücke die Betätigung von den Vorschub steuernden Elektromagneten veranlaßt wird.The subject of main patent 606 183 is an automatic feed control 'of the tool, especially with S cMeif machines at least one with one arm in one arm AC powered Wheatstone bridge provided a coil and a magnetic piece are, which are movable to each other and their mutual position by the Button, is changed and the change caused here by the Potential difference of the bridge the actuation of the feed-controlling electromagnets is initiated.
Da die Meßeinrichtung, welche von dem mit dem Werkzeug in Berührung stehenden Taster gesteuert wird, ebenso wie die früher vorgeschlagenen Kontaktmeßeinridhtungen. mit! unmittelbarer Kontaktgabe durch den Taster fest mit der Maschine verbunden sind, treten beim Arbeiten der Maschine, wenn auch, sehr kleine, so doch, unvermeidliche Erschütterungen der Meßeinrichtung auf, die zur Folge haben, daß die Stellung der Meßeinrichtung, die dem Fertigmaß entspricht, nicht stetig, sondern mit unregelmäßigen Schwingungen erreicht wird. Infolgedessen arbeiten auch die von der Meßeinrichtung beeinflußten, zur Steuerung des Vorschubes dienenden Elektromagnete unsicher insofern, als sie entsprechend ihrer Trägheit zu verschiedenen Zeiten ihre Kontakte schließen. Bei der Anordnung nach, dem Häuptpatent wird die hierdurch entstehende Ungenauigkeit der Arbeit zwar durch besondere Mittel stark herabgesetzt, jedoch nicht ganz beseitigt.Since the measuring device, which of the standing with the tool in contact Button is controlled, as well as the previously proposed Kontaktmeßeinridhtungen. with! direct contact through the button are firmly connected to the machine when the machine is working, even if very small, at least inevitable vibrations the measuring device, which have the consequence that the position of the measuring device, which corresponds to the finished size, not continuously, but with irregular oscillations is achieved. As a result, also work those influenced by the measuring device for Control of the feed serving electromagnets insofar as they are accordingly close their contacts at different times due to their indolence. In the arrangement According to the chief patent, the resulting inaccuracy of the work becomes greatly reduced by special means, but not entirely eliminated.
Um nun diesen Fehler zu beseitigen, sind erfindungsgemäß zwischen die Meßeinrichtung und die den Vorschub steuernden. Elektromagnete Zwischenrelais geschaltet, welche eine sehr geringe Trägheit für das Ansprechen und eine große Abfallverzögerung besitzen.In order to eliminate this error, according to the invention are between the measuring device and those controlling the feed. Electromagnets Intermediate relay switched, which has a very low inertia for responding and have a large decay delay.
Durch die geringe Trägheit beim Anspringen wird erreicht, daß das Relais sofort zur Wirkung kommt, wenn durch die Bewegung des Tasters von der Meßeinrichtung erstmalig eine zur Betätigung des Relais genügend große Potentialdifferenz an der Brücke hervorgerufen wird, oder was diesem entspricht, wenn bei Meßeinrichtungen mit unmittelbarer Kontaktgabe der Taster erstmalig flüchtig Kontakt gibt. Wird nun derDue to the low inertia when starting it is achieved that the relay switches to immediately Effect comes when by the movement of the probe of the measuring device for the first time a sufficient potential difference to operate the relay at the Bridge is caused, or what corresponds to this, if with measuring devices with Immediate contact of the button gives brief contact for the first time. Will now be the
*) Von dem Patentsucher ist als der Erfinder angegeben worden:*) The patent seeker stated as the inventor:
Othniar Pollok in Berlin -Wilmersdorf.Othniar Pollok in Berlin-Wilmersdorf.
Kontakt wieder vorübergehend unterbnodien, so folgt das Relais infolge seiner großen Trägheit für das Abfallen nicht. Es bleibt also die erste flüchtige Kontakigiabe maß-■ 5 gebend, und die nachfolgenden Schwingungen des Kontaktes und die Änderung der Potentialdifrerenz können auf die Genauigkeit der Schaltung keinen Einfluß mehr ausüben. Contact is temporarily interrupted again, so the relay follows due to its large Indolence for falling away not. So the first fleeting contact remains measured 5 giving, and the subsequent vibrations of the contact and the change in the potential difference can affect the accuracy no longer have any influence on the circuit.
ίο Ein für den gewollten Zweck sehr geeignetes Relais ist die Quecksilberschaltröhre rnit^ Tauchkern. Das Anspringen dieses Relais erfolgt durch magnetischen Zug gegen sehr geringen Widerstand, der Abfall des Relais wird 'dagegen lediglich durch den Auftrieb des Schwimmers im Quecksilber herbeigeführt, dessen Auswirkung durch entsprechende Ausbildung der Röhre beliebig vergrößert werden kann.ίο A relay that is very suitable for the intended purpose is the mercury switching tube with ^ Diving core. This relay is triggered by a magnetic pull against very low resistance, the drop of the relay is only caused by the buoyancy of the float brought about in the mercury, its effect by corresponding Training of the tube can be enlarged as desired.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA68125D DE615067C (en) | 1932-12-28 | 1932-12-28 | Automatic feed control of the tool, especially with grinding machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA68125D DE615067C (en) | 1932-12-28 | 1932-12-28 | Automatic feed control of the tool, especially with grinding machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE615067C true DE615067C (en) | 1935-06-26 |
Family
ID=6944605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEA68125D Expired DE615067C (en) | 1932-12-28 | 1932-12-28 | Automatic feed control of the tool, especially with grinding machines |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE615067C (en) |
-
1932
- 1932-12-28 DE DEA68125D patent/DE615067C/en not_active Expired
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