CH499367A - Basic button - Google Patents
Basic buttonInfo
- Publication number
- CH499367A CH499367A CH477468A CH477468A CH499367A CH 499367 A CH499367 A CH 499367A CH 477468 A CH477468 A CH 477468A CH 477468 A CH477468 A CH 477468A CH 499367 A CH499367 A CH 499367A
- Authority
- CH
- Switzerland
- Prior art keywords
- workpiece
- button
- finger
- spindle
- nut
- Prior art date
Links
- 238000005553 drilling Methods 0.000 claims description 8
- 239000013078 crystal Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 2
- 230000036316 preload Effects 0.000 claims description 2
- 239000000523 sample Substances 0.000 claims description 2
- 238000006748 scratching Methods 0.000 claims description 2
- 230000002393 scratching effect Effects 0.000 claims description 2
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/004—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points
- G01B5/008—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
- G01B5/012—Contact-making feeler heads therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
- B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
- B23Q35/24—Feelers; Feeler units
- B23Q35/26—Feelers; Feeler units designed for a physical contact with a pattern or a model
- B23Q35/30—Feelers; Feeler units designed for a physical contact with a pattern or a model for control of an electrical or electro-hydraulic copying system
- B23Q35/34—Feelers; Feeler units designed for a physical contact with a pattern or a model for control of an electrical or electro-hydraulic copying system in which the feeler varies an electrical characteristic in a circuit, e.g. capacity, frequency
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/002—Details
- G01B3/008—Arrangements for controlling the measuring force
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Numerical Control (AREA)
Description
Basis-Taster
Der Basis-Taster dient z. B. zur Positionierung der Arbeitsspindel einer Werkzeugmaschine in bezug auf eine Basisfläche eines Werkstückes, vor allem bei Lehrenbohrmaschinen, Bohrmaschinen, Horizontal-Bohrund Fräswerken.
Der Erfindung liegt die Aufgabe zugrunde, einen Basis-Taster zu schaffen, mit dem die Basisfläche am Werkstück möglichst schnell und genau anzusteuern ist.
Im folgenden wird anhand der beiliegenden Zeichnung ein Ausführungsbeispiel der Erfindung näher beschrieben.
Nachdem der Basis-Taster mit seinem Konus 20 z. B. in einer Bohrspindel eingesetzt ist, lässt man diesen mit max. 250 Touren in der Min. drehen. Der Tastfinger 16, welcher in einem Kugelgelenk geführt ist, wird nun mehr oder weniger ausschlagen. Dieser Ausschlag wird nun reduziert, indem die Bezugsfläche oder (Basisfläche) des Werkstückes und der Tastfinger näher zueinander geführt werden.
Bei jeder Berührung des Tastfingers am Werkstück gibt der Tongenerator, welcher in einem Kunststoff Träger 10 untergebracht ist, über den Kristall-Lautsprecher einen Pfeifton ab. Durch gleichmässiges Zustellen wird der Ton immer länger und die Unterbrüche immer kürzer. Diese Bewegung wird ausgeführt, bis kein Unterbruch des Tones mehr vernehmbar ist. In dieser Position dreht die Hartmetall-Kugel des Tasters genau in der theoretischen Achse der Spindel. Durch weiteres Zustellen um den halben Kugeldurchmesser, ist die Arbeitsspindel präzis auf diese Bezugsfläche des Werkstückes ausgerichtet.
Die Zange 14, welche am Vorderteil eine Kugelschalenform aufweist, besitzt 0,2 mlm Vorspannung, in bezug auf das kugelförmige Lagerende des Tastfingers und wird geschützt durch die Mutter 15.
Wird diese Mutter angezogen, so treibt sie die Kontakt-Feder 19 mittels des Kontaktbolzens 17 auf den Kristall-Lautsprecher, dessen Aussenmantel mit dem Plus-Pol der 9 Volt Batterie verbunden ist. Der Minus Pol geht über den Tongenerator auf das Aussengehäuse 11. Beide Anschlüsse sind getrennt durch den Isolierring 13. Durch Lösen der Mutter 15 um einige Gewindegänge wird der Stromkreislauf unterbrochen.
Erzielbare Vorteile
Durch diese Konstruktion ist man unabhängig vom Rundlauf der Spindel oder ihrer Konus-Aufnahme. Sind die Berührungsflächen von Hartmetall-Kugel und Werkstück verschmutzt, so tritt anstelle vom Pfeifton ein Kratzton. Wird der Nullpunkt um 0,02-0,03 m/m überfahren, so gleitet der Taster von selbst zur Seite.
Die erreichbare Genauigkeit bewegt sich zwischen 0,002-0,004 m/m.
PATENTANSPRUCH
Basis-Taster, dadurch gekennzeichnet, dass ein gelenkig gelagerter Tastfinger vorhanden ist, der an seinem Tastende und an seinem Lagerende kugelförmig ist und der Tastfinger über einen Tongenerator mit einem Kristall-Lautsprecher verbunden ist.
**WARNUNG** Ende DESC Feld konnte Anfang CLMS uberlappen**.
Basic button
The basic button is used e.g. B. for positioning the work spindle of a machine tool in relation to a base surface of a workpiece, especially in jig drilling machines, drilling machines, horizontal drilling and milling machines.
The invention is based on the object of creating a base button with which the base surface on the workpiece can be controlled as quickly and precisely as possible.
An exemplary embodiment of the invention is described in more detail below with reference to the accompanying drawing.
After the base button with its cone 20 z. B. is used in a drilling spindle, you can this with max. Rotate 250 tours per minute. The sensing finger 16, which is guided in a ball joint, will now deflect more or less. This deflection is now reduced by moving the reference surface or (base surface) of the workpiece and the feeler finger closer to one another.
Each time the touch finger is touched on the workpiece, the tone generator, which is housed in a plastic support 10, emits a whistling tone via the crystal loudspeaker. Even infeed makes the tone longer and longer and the interruptions shorter and shorter. This movement is carried out until the sound is no longer interrupted. In this position the hard metal ball of the probe rotates exactly in the theoretical axis of the spindle. By further infeeding by half the ball diameter, the work spindle is precisely aligned with this reference surface of the workpiece.
The pliers 14, which have a spherical shell shape on the front part, have 0.2 mlm preload with respect to the spherical bearing end of the feeler finger and are protected by the nut 15.
If this nut is tightened, it drives the contact spring 19 by means of the contact bolt 17 onto the crystal loudspeaker, the outer jacket of which is connected to the positive pole of the 9 volt battery. The minus pole goes through the tone generator to the outer housing 11. Both connections are separated by the insulating ring 13. By loosening the nut 15 by a few threads, the circuit is interrupted.
Achievable benefits
This design means that you are independent of the concentricity of the spindle or its cone mount. If the contact surfaces of the hard metal ball and the workpiece are dirty, a scratching sound occurs instead of a whistling sound. If the zero point is exceeded by 0.02-0.03 m / m, the button slides to the side by itself.
The achievable accuracy is between 0.002-0.004 m / m.
PATENT CLAIM
Basic button, characterized in that there is an articulated touch finger which is spherical at its touch end and at its bearing end and the touch finger is connected to a crystal loudspeaker via a tone generator.
** WARNING ** End of DESC field could overlap beginning of CLMS **.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH477468A CH499367A (en) | 1968-03-29 | 1968-03-29 | Basic button |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH477468A CH499367A (en) | 1968-03-29 | 1968-03-29 | Basic button |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH499367A true CH499367A (en) | 1970-11-30 |
Family
ID=4282302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH477468A CH499367A (en) | 1968-03-29 | 1968-03-29 | Basic button |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH499367A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1979000348A1 (en) * | 1977-12-06 | 1979-06-28 | Meseltron Sa | Measuring process by means of gauge blocks and measure gauge blocks |
-
1968
- 1968-03-29 CH CH477468A patent/CH499367A/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1979000348A1 (en) * | 1977-12-06 | 1979-06-28 | Meseltron Sa | Measuring process by means of gauge blocks and measure gauge blocks |
| US4351114A (en) | 1977-12-06 | 1982-09-28 | Hans Sigg | Process for measuring using standard blocks and a standard measuring block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |