DE577846C - Providing the tool when grinding using rotating grinding wheels - Google Patents
Providing the tool when grinding using rotating grinding wheelsInfo
- Publication number
- DE577846C DE577846C DEA81066D DEA0081066D DE577846C DE 577846 C DE577846 C DE 577846C DE A81066 D DEA81066 D DE A81066D DE A0081066 D DEA0081066 D DE A0081066D DE 577846 C DE577846 C DE 577846C
- Authority
- DE
- Germany
- Prior art keywords
- grinding
- tool
- providing
- rotating
- workpiece
- 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
- 238000000034 method Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/18—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces for rotating the spindle at a speed adaptable to wear of the grinding wheel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Description
Das Beistellen einer umlaufenden Schleifscheibe erfolgte bisher nur durch Verstellen mechanisch bewegter Beistelhnechanismen, deren Widerstände und Spiel jedoch eine Feinbeistellung für höchste Genauigkeit nur schwer ermöglichen.Up until now, a rotating grinding wheel has only been provided by adjusting it mechanically moved side bar mechanisms, their resistance and play, however, one It is difficult to enable fine adjustment for maximum accuracy.
Dieser Mangel soll gemäß der Erfindung dadurch behoben werden, daß die Beistellung der Schleifscheibe um ein bestimmtes MaßThis deficiency is to be remedied according to the invention in that the provision the grinding wheel by a certain amount
ίο ohne Verstellen eines Supportes lediglich durch Erhöhung der Umlaufzahl der Schleifspindel erfolgt.ίο without adjusting a support only by increasing the number of revolutions of the grinding spindle.
Die Baustoffe einer Schleifscheibe (Schleifstoff und Bindemittel) sind nämlich nie so gleichmäßig in der fertigen Schleifscheibe verteilt, daß nicht bei entsprechender Umlaufzahl Zentrifugalkräfte auftreten, die der Scheibe neben ihrer Umlaufbewegung eine um die geometrische Achse der SchleifspindelThe building materials of a grinding wheel (grinding material and binding agent) are never like that evenly distributed in the finished grinding wheel, that not with the corresponding number of revolutions Centrifugal forces occur which, in addition to its orbital motion, affect the wheel around the geometric axis of the grinding spindle
ao kreisende Bewegung vermitteln, so daß bei erhöhter Umlauf zahl die Scheibe periodisch dem Werkstück nähergebracht wird als bei geringerer Umlaufgeschwindigkeit. Da sich jedoch das Werkstück verhältnismäßig langsam dreht, so ist es praktisch bedeutungslos, daß die Scheibe nicht dauernd mit dem gleichen Anpressungsdruck das Werkstück angreift. ao convey a circular motion, so that with increased rotation number the disk periodically is brought closer to the workpiece than at a lower rotational speed. That I however the workpiece rotates relatively slowly, so it is practically meaningless that the disc does not constantly attack the workpiece with the same contact pressure.
Wird eine auf einer frei tragenden Welle befestigte Schleifscheibe verwendet, dann liegt die Achse der Schleifspindel nur so lange parallel zur Achse des Werkstückes, als die Schleifspindel nicht durch den Anpressungsdruck abgebogen wird. Je weiter die Scheibe in das Werkstück eindringt, desto mehr wird sie abgebogen, sie liegt also winkHg zur Achse des Werkstückes. Diese Verlagerung bedingt naturgemäß auch eine exzentrische Einstellung der Schleifscheibe zur Lagerung der Schleifspindel.If a grinding wheel mounted on a cantilever shaft is used, then the axis of the grinding spindle is only parallel to the axis of the workpiece as long as when the grinding spindle is not bent by the contact pressure. The farther the disc penetrates the workpiece, the more it is bent, so it lies at an angle to the axis of the workpiece. Naturally, this shift also requires an eccentric one Adjustment of the grinding wheel to support the grinding spindle.
Gibt man nun erfindungsgemäß, je weiter die Schleifscheibe in ein Werkstück eintritt und somit je höher der Anpressungsdruck zwischen Werkstück und Schleifscheibe wird, der Schleifspindel eine erhöhte Umlaufgeschwindigkeit, dann erhöht sich der Anpressungsdruck. Auf diese Weise können selbst verhältnismäßig lange Werkstücke in verhältnismäßig kurzer Zeit genau geschliffen werden.According to the invention, the further the grinding wheel enters a workpiece and thus the higher the contact pressure between the workpiece and the grinding wheel, the grinding spindle has an increased rotational speed, then the contact pressure increases. In this way, even relatively long workpieces can be ground precisely in a relatively short time will.
Selbstverständlich ist es nicht notwendig, die beschriebene Beistellung auch beim Schruppschleifen anzuwenden, da es ja hierbei weniger auf Genauigkeit ankommt, sondern man wird erst dann gemäß der Erfindung verfahren, wenn zum Feinschliff übergegangen wird.Of course, it is not necessary to provide the described provision with the Rough grinding to be used, as it is less about accuracy, but rather one will only proceed according to the invention when the fine-tuning has been passed will.
Ersichtlich kann man das Verfahren gemäß der Erfindung auch in Verbindung mit den an sich bekannten Schleifverfahren, z. B. Ausfunkenlassen der Schleifscheibe, anwenden. Obviously, the method according to the invention can also be used in conjunction with the known grinding process, e.g. B. Sparking out the grinding wheel.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA81066D DE577846C (en) | 1931-03-20 | 1931-03-20 | Providing the tool when grinding using rotating grinding wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA81066D DE577846C (en) | 1931-03-20 | 1931-03-20 | Providing the tool when grinding using rotating grinding wheels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE577846C true DE577846C (en) | 1933-06-06 |
Family
ID=6948217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEA81066D Expired DE577846C (en) | 1931-03-20 | 1931-03-20 | Providing the tool when grinding using rotating grinding wheels |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE577846C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1052263B (en) * | 1957-11-20 | 1959-03-05 | Fortuna Werke Spezialmaschinen | Method and device for producing very small tool feed paths |
-
1931
- 1931-03-20 DE DEA81066D patent/DE577846C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1052263B (en) * | 1957-11-20 | 1959-03-05 | Fortuna Werke Spezialmaschinen | Method and device for producing very small tool feed paths |
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