US3082014A - Tool clamping device - Google Patents
Tool clamping device Download PDFInfo
- Publication number
- US3082014A US3082014A US53715A US5371560A US3082014A US 3082014 A US3082014 A US 3082014A US 53715 A US53715 A US 53715A US 5371560 A US5371560 A US 5371560A US 3082014 A US3082014 A US 3082014A
- Authority
- US
- United States
- Prior art keywords
- pin
- cone
- conical portion
- transverse bore
- clamping 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 - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/107—Retention by laterally-acting detents, e.g. pins, screws, wedges; Retention by loose elements, e.g. balls
- B23B31/1071—Retention by balls
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17666—Radially reciprocating jaws
- Y10T279/17692—Moving-cam actuator
- Y10T279/17743—Reciprocating cam sleeve
- Y10T279/17752—Ball or roller jaws
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17923—Transverse pin
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17957—Friction grip
- Y10T279/17965—Drill type
Definitions
- the present invention relates to tool carriers and, more specifically, concerns a tool clamping device with steep cone connection.
- the steep cone has diagrammatically oppositely located portions thereof provided with protrusions adapted at least indirectly to engage an inner groove of an element surrounding same, said groove being y designed to act as lead cam upon said protrusions in response 4to a relative rotation between cone and groove carrier.
- FIG. l represents a longitudinal section through a clamping device according to the invention.
- FIG. 2 is a cross section taken along the line 2--2 of FIG. 1.
- FIG. 3 is a cross section similar to that of FIG. l through a modified clamping device according to the invention.
- FIG. 4 is a section taken along the line 4 4 of FIG. 3.
- FIG. 5 is a partial longitudinal section taken along the line 5-5 of FIG. 4.
- the tool clamp-ing device or chuck according to the present invention is characterized in that protrusions are provided at the two ends of a longitudinal displaceable pin extending through the cone which protrusions have inclined surfaces adapted to be acted upon -by lead cams in response to a certain rotation whereby the cone is driven into the receiving part therefor.
- FIGS. 1 and 2 thereof in particular, the embodiment shown therein has one end of a tool spindle 11 provided with an inner ICC conical surface 11a and forms the receiving part for a steep cone 12a of a shank 12 of a tool holder.
- the steep cone 12a has a transverse bor-e 12b through which extends a pin 13 which is slightly resiliently yieldable and longitudinally displaceable in said transverse bore.
- the pin 13 has its circumference provided With a depression 13a into which a ball 15 may be pressed by means of a spring 14.
- This spring 14 is mounted in a central bore 12e of steep cone 12a and has its upper end rest against a shoulder of a screw 16 threaded into the steep cone 12a.
- Screw 16 has a central pinlike extension 16a for limiting the movement of ball 15 to such an extent that pin 13 will not be able accidentally to leave the transverse bore 12b.
- the spindle is furthermore provided with axially extending grooves 11b, said ends of pin 13 protruding beyond the outer surface of the steep cone 12a.
- the axially extending grooves 11b have a narrow passage 11c within the range of the protrusions of such a width that it will receive therebetween the ends of pin 13 which ends at this portion are provided with lateral flat parts 13b. In this Way, there will at any rate be assured a positive lengagement of the cone with the cone receiving part so that the cone will be positively rotated when the receiving part 11 turns.
- the cone receiving part 11 is provided with transverse bores 11d, having balls 17 inserted therein. These balls simultaneously engage inner grooves 18a of a collar ring 18 which is loosely rotatable on the spindle 11 and secured by spring rin-g 19 against accidental withdrawal.
- the bottom 18h of grooves 18a is designed as lead cam for the balls in such a way that when ring 18 moves out of its FIG. 1 and 2 position, the balls will be pushed inwardly so that they will pass below the inclined surfaces 13o of the ends of pin 13 and in response to a further rotative movement of said ring 18 will lift pin 13 and thereby drive steep cone 12a into the receiving conical bore 11a. Due to the fact that pin 13 is longitudinally displaceable to a limited extent, it will be assured that no ball will become effective ahead of the other ball whereby a unilateral pressing of the cone could be effected.
- this embodiment likewise shows the shank ⁇ 12 of a tool holder with the steep cone 12a having a transverse bore 12b.
- a differently formed transverse pin is inserted into said transverse bore 12b.
- the transverse pin 23 is to a limited extent yieldably and longitudinally displaceably held in said transverse bore by means similar to those described in connection with the embodiment of FIGS. 1 and 2, namely by a ball 15, a spring 14, a screw 16 and an extension 16a of said screw.
- the spindle 21 is also in this instance provided with axially extending grooves 2lb for the protruding ends of pin 23.
- the inner conical receiving surface 21a of spindle 21 is directly provided with an inner groove 21d.
- the lower side flank of said inner groove 21d has at 21e an ascending inclined surface. It is with these inclined surfaces that the inclined surfaces 23e of the protruding ends 23a of transverse pin 23 cooperate in such a way that when a rotation of the steep cone 12a occurs relative to spindle 21, the said protrusions ascend on the inclined surfaces 21e thereby pressing shank 12a into the receiving cone 21a.
- pin 23 is longitudinally displaceable brings about a compensation in so far as neither one of the two groove sides can first and alone become effective -whereby a unic a lateral pressing of the steep cone into the receiving cone would be effected.
- a rst member having a conical portion, a second member provided with a conical bore corresponding to said conical portion for receiving the latter, said conical portion being provided with a transverse bore, pin means axially displaceably mounted in said transverse bore and having its ends protrude beyond said transverse bore at diametrically opposite sides of' said conical portion, said protruding ends of said pin means being provided with inclined surfaces, and means surrounding at least a portion of said conical portion Within the range of said inclined surfaces for engaging the same in response to a certain rotation of said means relative to said pin means to thereby drive said iirst member into said second member.
- said pin means comprises a depression, and which includes engaging means for engagement with said depression, an adjustable member mounted in said conical portion, and spring means interposed between said adjustable member and said engaging means for continuously urging said engaging means into said depression, said adjustable member having an extension forming an abutment for said engaging means and normally occupying a position to allow said engaging means to move against the thrust of said spring means by a distance insuicient to completely disengage said depression.
- a rst member having a conical portion, a second member provided with a conical bore corresponding to said conical portion for receiving the same, said conical portion being provided with a transverse bore, and pin means axially displaceably mounted in said transverse bore and having its ends provided with inclined surfaces and protruding therefrom at diametrically opposite sides of said conical portion, said second member having a portion surrounding said conical portion within the range of said inclined surfaces and being provided with a cam area for engagement with said inclined surfaces in response to a certain rotation of said rst and second members relative to each other to thereby cause said cam area to drive said first member into said second member.
- a rst member having a conical portion, a second member provided with a conical bore corresponding to said conical portion for receiving the same, said conical portion being provided with a transverse bore, pin means axially displaceably mounted in said transverse bore and having its ends provided with inclined surfaces and protruding therefrom at diametrically opposite sides of said conical portion, said second member having passage means provided within the range of said pin means, ring means mounted on said second the intervention of said pin means into said second member.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW26358A DE1183341B (de) | 1959-09-11 | 1959-09-11 | Werkzeugspannvorrichtung mit Steilkegelbefestigung |
Publications (1)
Publication Number | Publication Date |
---|---|
US3082014A true US3082014A (en) | 1963-03-19 |
Family
ID=7598317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US53715A Expired - Lifetime US3082014A (en) | 1959-09-11 | 1960-09-02 | Tool clamping device |
Country Status (4)
Country | Link |
---|---|
US (1) | US3082014A (de) |
CH (1) | CH385595A (de) |
DE (1) | DE1183341B (de) |
GB (1) | GB904642A (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4134597A (en) * | 1976-07-05 | 1979-01-16 | Hilti Aktiengesellschaft | Holder for self-drilling dowels |
FR2416064A1 (fr) * | 1978-02-06 | 1979-08-31 | Groupe Etu Tech Const Machines | Porte-poincon a montage rapide |
US4575292A (en) * | 1984-02-24 | 1986-03-11 | Heinz Kaiser A.G. | Device for connecting a tool part to a connecting shaft |
US4834597A (en) * | 1987-04-21 | 1989-05-30 | Sandvik Aktiebolag | Tool assembly, tool components and method of assemblying said components |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2131915B (en) * | 1982-12-15 | 1985-12-11 | Peter Taylor | Releasable coupling |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1636421A (en) * | 1925-08-10 | 1927-07-19 | Warren E Knott | Chuck |
US1781442A (en) * | 1926-10-16 | 1930-11-11 | Arthur L Currier | Chuck |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2320360A (en) * | 1941-11-05 | 1943-06-01 | Teletype Corp | Quick-change device |
CH266696A (fr) * | 1947-11-19 | 1950-02-15 | Vogel Arnold | Dispositif de fixation d'un outil dans un mandrin. |
-
1959
- 1959-09-11 DE DEW26358A patent/DE1183341B/de active Pending
-
1960
- 1960-08-31 CH CH985360A patent/CH385595A/de unknown
- 1960-09-02 US US53715A patent/US3082014A/en not_active Expired - Lifetime
- 1960-09-09 GB GB31106/60A patent/GB904642A/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1636421A (en) * | 1925-08-10 | 1927-07-19 | Warren E Knott | Chuck |
US1781442A (en) * | 1926-10-16 | 1930-11-11 | Arthur L Currier | Chuck |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4134597A (en) * | 1976-07-05 | 1979-01-16 | Hilti Aktiengesellschaft | Holder for self-drilling dowels |
FR2416064A1 (fr) * | 1978-02-06 | 1979-08-31 | Groupe Etu Tech Const Machines | Porte-poincon a montage rapide |
US4575292A (en) * | 1984-02-24 | 1986-03-11 | Heinz Kaiser A.G. | Device for connecting a tool part to a connecting shaft |
US4834597A (en) * | 1987-04-21 | 1989-05-30 | Sandvik Aktiebolag | Tool assembly, tool components and method of assemblying said components |
AU605850B2 (en) * | 1987-04-21 | 1991-01-24 | Sandvik Intellectual Property Ab | Tool assembly, tool components and method of assembling said components |
Also Published As
Publication number | Publication date |
---|---|
CH385595A (de) | 1964-12-15 |
GB904642A (en) | 1962-08-29 |
DE1183341B (de) | 1964-12-10 |
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