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DE1064371B - Double-sided spring end grinding machine - Google Patents

Double-sided spring end grinding machine

Info

Publication number
DE1064371B
DE1064371B DEB34583A DEB0034583A DE1064371B DE 1064371 B DE1064371 B DE 1064371B DE B34583 A DEB34583 A DE B34583A DE B0034583 A DEB0034583 A DE B0034583A DE 1064371 B DE1064371 B DE 1064371B
Authority
DE
Germany
Prior art keywords
grinding
double
spring end
end grinding
grinding machine
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.)
Pending
Application number
DEB34583A
Other languages
German (de)
Inventor
Wilhelm Blumberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wilhelm Blumberg & Co Spezialm
Original Assignee
Wilhelm Blumberg & Co Spezialm
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wilhelm Blumberg & Co Spezialm filed Critical Wilhelm Blumberg & Co Spezialm
Priority to DEB34583A priority Critical patent/DE1064371B/en
Publication of DE1064371B publication Critical patent/DE1064371B/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10Single-purpose machines or devices
    • B24B7/16Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
    • B24B7/167Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings end faces coil springs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Description

Doppelseitig wirkende Federenden-Schleifmaschine Die Erfindung hat das beidseitige Schleifen von Stahlschraubenfedern auf Federenden-Schleifmaschinen mit gleichachsig horizontal gelagerten Schleifringpaaren sowie exzentrisch hierzu angeordneter Magazinscheibe nebst Führungsplatten zum Gegenstand. Die Erfindung ermöglicht bei rationellster Arbeitsweise die Erzielung eines guten Schliffs der Federenden.Double-acting spring end grinding machine The invention has the double-sided grinding of steel coil springs on spring-end grinding machines with coaxial, horizontally mounted slip ring pairs as well as eccentrically to it arranged magazine disc together with guide plates to the object. The invention enables a good cut of the to be achieved with the most efficient working method Spring ends.

Die bisher bekannten Federenden-Schleifmaschinen waren unter anderem Schleifmaschinen, bei welchen die Schleifscheiben auf senkrecht stehenden Schleifspindeln angeordnet waren. Eine solche Anordnung hat den großen Nachteil, daß der Schleifstaub bald zu einer Verschmutzung der Maschine führen muß, da er von oben nach unten fällt und damit zwangläufig mit rotierenden Teilen der Maschine in Berührung kommen muß. Die Gefahr des Verschmutzens ist um so größer, als es bisher nur bekannt war, mit kuntsharzgebundenen oder hochgebrannten keramischen Schleifringen im Trockenschliff zu arbeiten, was einmal mit Nachteilen für die die Maschine bedienenden Personen verbunden ist, dann aber auch auf die Dauer für die Maschine selbst zu einem schnellen Verschleiß führen muß.The previously known spring end grinding machines were among others Grinding machines in which the grinding wheels are mounted on vertical grinding spindles were arranged. Such an arrangement has the major disadvantage that the grinding dust soon must lead to contamination of the machine, as it falls from top to bottom and therefore must inevitably come into contact with rotating parts of the machine. The risk of pollution is all the greater as it was previously only known with Synthetic resin-bonded or high-fired ceramic slip rings in dry grinding to work, which once with disadvantages for the people operating the machine connected, but then also in the long run for the machine itself to a fast one Must lead to wear.

Es sind auch bereits Federenden-Schleifmaschinen im Handel, bei denen die Schleifringe auf waagerecht gelagerten Spindeln laufen, wobei die zu schleifenden Federn mittels einer Magazinscheibe zugeführt werden, die seitlich von Führungsplatten umgeben ist. Diese bekannten Schleifmaschinen verwenden aber durchweg keramische Schleifscheiben oder mittels Kunstharz gebundene Scheiben. Bei einem derartigen trockenen Arbeitsprozeß mußten die Schleifscheiben mindestens stündlich nachgeschliffen werden, um die am Werkstück in Form von Riefen auftretenden Deformationen zu beseitigen, was eine Unterbrechung des Arbeitsprozesses und damit einen erheblichen Zeitverlust bedeutete.There are also spring end grinding machines on the market where the slip rings run on horizontally mounted spindles, with the ones to be ground Springs are fed by means of a magazine disc, the side of guide plates is surrounded. However, these known grinding machines use ceramic ones throughout Grinding wheels or wheels bonded with synthetic resin. With such a In the dry working process, the grinding wheels had to be reground at least every hour in order to remove the deformations occurring on the workpiece in the form of grooves, what an interruption of the work process and thus a considerable loss of time meant.

Ein wesentlicher Nachteil der im Trockenschliff arbeitenden Federenden-Schleifmaschinen bestand vor allem auch darin, daß beim Schleifen hohe Temperaturen auftraten, die ein Verbrennen der zu schleifenden Federenden bedingten, was sich durch blau angelaufene Schleifflächen offenbarte. Außerdem war es notwendig, die so geschliffenen Federn einem Enthärtungs- und einem Entgratungsprozeß zu unterziehen, was weitere Kosten und einen zusätzlichen Zeitverlust bedingte.A major disadvantage of the spring end grinding machines that work with dry grinding was above all that high temperatures occurred during grinding, the a burning of the spring ends to be ground caused what turned blue tarnished Revealed grinding surfaces. It was also necessary to have the springs ground in this way to subject a softening and a deburring process, which further costs and caused an additional loss of time.

Die vorstehend geschilderten Mängel werden erfindungsgemäß durch Verwendung handelsüblicher Magnesit-Schleifscheiben bei Naßschliff beseitigt.The above-mentioned shortcomings are made use of in the present invention of commercially available magnesite grinding wheels removed with wet grinding.

Die Tatsache der Wasserempfindlichkeit von Magnesitscheiben wurde zum Ausgangspunkt der Erfindung gemacht, wobei durch Abstimmung der Umlauf- und Schleifdruckverhältnisse die Magnesitscheiben für das Schleifen von Stahlschraubenfederenden erfolgreich Anwendung finden konnten. Bei der Verwendung von Magnesitscheiben tritt während des Schleifens eine Selbstschärfung der Schleifkörper ein, wodurch ein sehr sparsamer Schleifmittelverbrauch gewährleistet wird.The fact of the water sensitivity of magnesite disks was made made the starting point of the invention, whereby by voting the circulation and Grinding pressure ratios for the magnesite disks for grinding steel coil spring ends could be used successfully. When using magnesite disks occurs During the grinding process a self-sharpening of the grinding wheel creates a very economical consumption of abrasives is guaranteed.

Ein weiterer Vorteil bei Verwendung von Magnesit-Schleifscheiben gemäß der Erfindung ist darin zu erblicken, daß dank des Naßschliffs die Federn in einem Durchlauf fertig geschliffen werden können.Another advantage of using magnesite grinding wheels according to the invention can be seen in the fact that, thanks to the wet grinding, the springs in one Pass can be sanded finish.

Da die Drehzahl der Magazinscheibe in bekannter Weise mittels eines stufenlosen, der Schneckenuntersetzung vorgeschalteten Reibscheibengetriebes mittels eines Handrades beliebig regelbar ist, kann das Arbeitstempo der Schleifmaschine beliebig fein reguliert werden. Hierdurch ist es möglich, die Enden von Federn kleinsten Durchmessers bis zu solchen von 10 mm Durchmesser und mehr in einem Durchlauf zu schleifen. Der Schleifdruck kann außerdem, da Naßschliff Anwendung findet,, gering gehalten werden, was sich wiederum günstig für die Beanspruchung der gesamten Maschine auswirkt. Jedes Springen der zu schleifenden Federn wird auf diese Weise vermieden.Since the speed of the magazine disc in a known manner by means of a stepless friction disk drive upstream of the worm reduction by means of a handwheel can be adjusted as required, the working speed of the grinding machine can be fine-tuned as required. This makes it possible to keep the ends of springs as small as possible Diameter up to those of 10 mm diameter and more in one pass ribbons. In addition, since wet grinding is used, the grinding pressure can be low which in turn is beneficial for the stress on the entire machine affects. Any jumping of the springs to be ground is avoided in this way.

Claims (1)

PATENTANSPRUCH: Beidseitiges Schleifen von Stahlschraubenfedern auf Federenden-Schleifmaschinen mit gleichachsig horizontal gelagerten Schleifringpaaren sowie exzentrisch hierzu angeordneter Magazinscheibe nebst Führungsplatten, gekennzeichnet durch die Verwendung handelsüblicher Magnesit-Schleifscheiben bei Naßschliff. In Betracht gezogene Druckschriften: Patentschrift Nr. 6036 des Amtes für Erfindungs-und Patentwesen in der sowjetischen Besatzungszone Deutschlands; britische Patentschrift Nr. 615 492; USA.-Patentschrift Nr. 1978 674; Paul Feldmann, Handbuch des Schleifens, 1953, S. 23 und-24; Kleinschmidt, Schleif- und Poliertechnik, Bd. 1, 1950, S.43; H a e d e r, Werkstattwinke, 1952, S. 259. PATENT CLAIM: Double-sided grinding of steel coil springs on spring-end grinding machines with coaxially mounted, horizontally mounted slip ring pairs as well as eccentrically arranged magazine disks and guide plates, characterized by the use of commercially available magnesite grinding disks for wet grinding. Publications considered: Patent No. 6036 of the Office for Invention and Patents in the Soviet Occupation Zone of Germany; British Patent No. 615,492; U.S. Patent No. 1978,674; Paul Feldmann, Handbuch des Schleifens, 1953, pp. 23 and -24; Kleinschmidt, grinding and polishing technology, vol. 1, 1950, p.43; H ae der, Werkstattwinke, 1952, p. 259.
DEB34583A 1955-02-19 1955-02-19 Double-sided spring end grinding machine Pending DE1064371B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB34583A DE1064371B (en) 1955-02-19 1955-02-19 Double-sided spring end grinding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB34583A DE1064371B (en) 1955-02-19 1955-02-19 Double-sided spring end grinding machine

Publications (1)

Publication Number Publication Date
DE1064371B true DE1064371B (en) 1959-08-27

Family

ID=6964348

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB34583A Pending DE1064371B (en) 1955-02-19 1955-02-19 Double-sided spring end grinding machine

Country Status (1)

Country Link
DE (1) DE1064371B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6036C (en) * P. SEIFERT, Schlossermeister, in Greiffenberg i./Schl Travel cot with suitcase
US1978674A (en) * 1930-03-21 1934-10-30 American Coil Spring Company Grinding machine
GB615492A (en) * 1946-07-03 1949-01-06 Heath Spring & Notion Company Improvements in or relating to machines for grinding the ends of coiled springs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6036C (en) * P. SEIFERT, Schlossermeister, in Greiffenberg i./Schl Travel cot with suitcase
US1978674A (en) * 1930-03-21 1934-10-30 American Coil Spring Company Grinding machine
GB615492A (en) * 1946-07-03 1949-01-06 Heath Spring & Notion Company Improvements in or relating to machines for grinding the ends of coiled springs

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