DE637649C - Device on drilling machine, in which the feed through a pressure-storing body, for. B. a coil spring is generated - Google Patents
Device on drilling machine, in which the feed through a pressure-storing body, for. B. a coil spring is generatedInfo
- Publication number
- DE637649C DE637649C DESCH109324D DESC109324D DE637649C DE 637649 C DE637649 C DE 637649C DE SCH109324 D DESCH109324 D DE SCH109324D DE SC109324 D DESC109324 D DE SC109324D DE 637649 C DE637649 C DE 637649C
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- spring
- holding device
- feed
- spindle
- 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
- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/32—Feeding working-spindles
-
- 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
- B23Q2705/00—Driving working spindles or feeding members carrying tools or work
- B23Q2705/10—Feeding members carrying tools or work
- B23Q2705/16—Feeding working spindles
- B23Q2705/165—General aspects of feeding a boring spindle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Description
Es sind Bohrmaschinen bekannt, bei denen der Bohrervorschub durch einen druckspeichernden. Körper; ζ. B. eine Schraubenfeder, erfolgt. Dabei stützt sich das Obere Ende des Druckkörpers gegen das Maschinengestell und das untere gegen die Bohrspindel. Beim Vorschub des Bohrers entspannt sich der Druckkörper, und der Bohrdruck sinkt. Um diesen nicht zu klein werden zu lassen, muß der Druckkörper von Zeit zu Zeit nachgespannt werden, indem (etwa von Hand) das obere Ende des Druckkörpers mittels der Haltevorrichtung für den Druckkörper im Maschinengestell in Vorschubrichtung nachgestellt wird. Um den Bohrdruck möglichst gleich groß zu halten, muß diese Nachspannung des den Bohrdruck erzeugenden Druckkörpers sehr oft um kleine Beträge, im Grenzfall gleichmäßig erfolgen.There are known drills in which the drill feed through a pressure-storing. Body; ζ. B. a coil spring, he follows. The upper end of the pressure hull is supported against the machine frame and the lower one against the drill spindle. When the drill advances, it relaxes Pressure hull, and the drilling pressure drops. In order not to let this become too small, must the pressure hull can be re-tensioned from time to time by (e.g. by hand) the upper end of the pressure hull by means of the Holding device for the pressure body in the machine frame readjusted in the feed direction will. In order to keep the drilling pressure as equal as possible, this post-tensioning of the pressure body generating the drilling pressure must very often by small amounts, in borderline cases evenly.
Durch die Erfindung ist in einfacher Weise die Aufgabe gelöst, den beim Bohrervorschub
sich entspannenden druckspeichernden Körper selbsttätig gleichmäßig nachzuspannen.
Zur Erläuterung des Erfindungsgedankens dient die Fig. 1.The invention solves the problem in a simple manner of automatically re-tensioning the pressure-storing body, which relaxes when the drill is advanced.
FIG. 1 serves to explain the concept of the invention.
Als Druckkörper ist die Schraubenfeder d gewählt worden. Die in der üblichen Weise im Maschinengestell α drehbare und in Bohrrichtung verschiebliche, mittels Keil und Nut angetriebene Bohrspindel δ erhält den nötigen B ohr druck über ein Drucklager c von der Schraubenfederd. Der Gegendruck wird vom oberen Ende der Feder d auf das Maschinengestell α üb ertragen. The coil spring d has been chosen as the pressure body. The in the usual way in the machine frame α rotatable and displaceable in the drilling direction, driven by means of wedge and groove drilling spindle δ receives the necessary B ohr pressure via a thrust bearing c from the helical spring d. The counter pressure is transmitted from the upper end of the spring d to the machine frame α.
Infolge des Bohrervorschubes verlängert sich die Federt und bringt den an der Bohrspindel & befestigten Teil h in Berührung mit dem unteren Teile1 der Federhaltevorrichtung e, f, g. Durch den entstehenden Kraftschluß (in der gezeichneten Ausführung durch Reibung) zwischen h und ex schraubt die Bohrspindel b die Federhaltevorrichtung e,f,g mittels auf e aufgeschnittenem und in a1 eingeschnittenem Gewinde im Maschinengestell hinab. Diese Abwärtsbewegung der Haltevorrichtung e, f, g ist aber in jedem Falle schneller als der Bohrervorschub, da die Bohrspindel δ und mit ihr der Teil h durch den Bohrwiderstand an einem schnellen Fortschreiten gehindert wird. Infolge dieser ReIativbewegung von Bohrspindel und Federhaltevorrichtung wandert der Teil h in die Haltevorrichtung e, f, g hinein und spannt dabei die Feder r/.As a result of the drill advance, the spring is extended and brings the part h attached to the drill spindle & into contact with the lower part 1 of the spring holding device e, f, g. Due to the resulting frictional connection (in the version shown by friction) between h and e x, the drilling spindle b screws down the spring holding device e, f, g by means of a thread cut open on e and incised in a 1 in the machine frame. This downward movement of the holding device e, f, g is in any case faster than the drill feed, since the drilling spindle δ and with it the part h is prevented from advancing rapidly by the drilling resistance. As a result of this relative movement of the drilling spindle and the spring holding device, the part h migrates into the holding device e, f, g and thereby tensions the spring r /.
Haben die Teile h und ex einen gewissen Abstand voneinander, löst sich ihr Kraftschluß, die Haltevorrichtung e, f, g bleibt stehen, und die Feder d wird nicht weiter gespannt.If the parts h and e x have a certain distance from one another, their frictional connection is released, the holding device e, f, g stops, and the spring d is no longer tensioned.
Der geschilderte Vorgang wiederholt sich dauernd, und der Bohrdruck der Schraubenfeder d bleibt praktisch gleich. Zur RegelungThe process described is repeated over and over, and the drilling pressure of the helical spring d remains practically the same. Regarding the regulation
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH109324D DE637649C (en) | 1936-02-25 | 1936-02-25 | Device on drilling machine, in which the feed through a pressure-storing body, for. B. a coil spring is generated |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH109324D DE637649C (en) | 1936-02-25 | 1936-02-25 | Device on drilling machine, in which the feed through a pressure-storing body, for. B. a coil spring is generated |
Publications (1)
Publication Number | Publication Date |
---|---|
DE637649C true DE637649C (en) | 1936-11-02 |
Family
ID=7448859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DESCH109324D Expired DE637649C (en) | 1936-02-25 | 1936-02-25 | Device on drilling machine, in which the feed through a pressure-storing body, for. B. a coil spring is generated |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE637649C (en) |
-
1936
- 1936-02-25 DE DESCH109324D patent/DE637649C/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE637649C (en) | Device on drilling machine, in which the feed through a pressure-storing body, for. B. a coil spring is generated | |
DE2609808C2 (en) | Process for producing a crimped yarn and false twist element for carrying out the process | |
DE525873C (en) | Device for non-reversible rotation transmission | |
DE3003238C2 (en) | Holder for circularly arranged dies of the die plate of a rotary tablet machine | |
DE560694C (en) | Sheet feeding device for office printing machines | |
DE3336919C2 (en) | Device for zone-wise adjustment of an ink knife | |
DE503555C (en) | Feed and turning device on centerless grinding machines by means of conical friction disks attached to the workpiece | |
DE1251271B (en) | ||
DE624407C (en) | Device for automatic compensation of the clamping pressure on semi-automatic clamping and driving devices, preferably for wheel sets | |
AT55467B (en) | Drive device for the tool spindle of screw cutting machines rotating in the same direction but faster than the workpiece. | |
DE560689C (en) | Device for braking paper rolls when turning off rotary printing machines | |
DE332366C (en) | Device switched between the ratchet wheel and its drive to adjust the picture tape in the window of row picture devices | |
DE595088C (en) | Method and device for the production of edgeless spring inserts for seat cushions, mattresses and. like | |
DE882789C (en) | Chucks for machine tools | |
DE416450C (en) | Spooling machine with a device for automatically stopping the spools when a certain winding diameter is reached | |
DE579189C (en) | Drive for clamping and pressing devices, preferably veneer presses | |
DE114886C (en) | ||
DE173355C (en) | ||
DE504194C (en) | Milling machine with a rotary table continuously revolving around a vertical axis | |
DE714615C (en) | Thread tensioning device for shoe sewing machines | |
DE652233C (en) | Device on drilling machines in which the feed is generated by a pressure-storing body | |
DE307928C (en) | ||
AT213192B (en) | Device for producing a thread with a non-uniform pitch | |
DE58273C (en) | Cigar bundling and pre-filling machine with bundling table | |
DE163931C (en) |