US3456542A - Tool holding structure for punching machine - Google Patents
Tool holding structure for punching machine Download PDFInfo
- Publication number
- US3456542A US3456542A US670105A US3456542DA US3456542A US 3456542 A US3456542 A US 3456542A US 670105 A US670105 A US 670105A US 3456542D A US3456542D A US 3456542DA US 3456542 A US3456542 A US 3456542A
- Authority
- US
- United States
- Prior art keywords
- tool support
- clamp means
- pair
- slotted frame
- pins
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
-
- 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
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8821—With simple rectilinear reciprocating motion only
- Y10T83/8841—Tool driver movable relative to tool support
- Y10T83/8853—Including details of guide for tool or tool support
-
- 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
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9457—Joint or connection
- Y10T83/9473—For rectilinearly reciprocating tool
Definitions
- a punching machine has a removable tool support which guides reciprocable tooling, there being horizontally acting clamps between the tool support and the frame of the machine, and vertically acting clamps between the tool support and the frame of the machine.
- This invention relates generally to punch press types of machine tools, and more specifically to a tool support for reciprocable tooling which is detachably a part of such machine-tool.
- Another object of the present invention is to provide means by which a tool support is precluded from rocking when subjected to asymmetrical loads.
- Yet a further object of the present invention is to provide vertical clamp means on the detachable tool support which forms part of a punch press.
- FIG. 1 is a front elevational view of a tool support which forms a part of a punch press, provided in accordance with the principles of the present invention.
- FIG. 2 is a cross-sectional view taken along line II--II of FIG. 1.
- the principles of the present invention are particularly useful when embodied in a punch press of the type shown in US. Patent No. 3,270,605, a relevant portion of which has been modified by our to include a normally stationary tool support shown in FIG. 1, generally indicated by the numeral 10.
- the punch press includes a reciprocable ram 11 which lies between arms of the tool support 10, and which is aligned with an assembly of reciprocable tooling 12 which coacts with a fixed die 13.
- the tool support 10 as in the earlier form, is clamped to a pair of fixed slotted frame portions 14, 15 which are adjacent to the ram 11 at opposite sides thereof.
- the tool support 10 includes a pair of vertical pins 16, 17 secured to the tool support 10 as described below, the pins 16, 17 being received in the slot of the slotted frame portions 14, 15 respectively, and being clamped at the inner or rearward end of such slots by a pair of manuallyreleasable horizontally-acting clamp means 18, 19 which are only fragmentarily illustrated.
- the details of the horizontally-acting clamp means 18, 19 are shown in Patent No. 3,270,605.
- clamp means 18, 19 are in a clamped position.
- the clamp means 18, 19 are carried by the frame of the punch press and act on the pins 16, 17 in a horizontal direction to prevent horizontal movement of the tool support 10 and hence to prevent horizontal movement of the tooling 12.
- the clamp means 20 is identical to the clamp means 21, except for a minor feature, and the description therefore for the clamp means 21 is applicable to both.
- the vertical pins 16, 17 have threads on their lower ends as at 22 which extend through the tool support 10 and which in this embodiment project below such tool support.
- a pair of threaded handles 23 are respectively carried on the pins 16, 17 in threaded engagement therewith.
- the upper ends of the pins 16, 17 are provided with enlarged heads in the form of a pair of separate bushings 24 which are fixedly secured to the upper ends of the pins 16, 17.
- each pin 16, 17 is provided with a small head 25 which is received within the bushing 24 so that when the pins 16, 17 are tensioned, the bushing 24 is drawn downwardly so as to positively engage a lower shoulder 26 with the upper surface of the slotted frame portion 14, 15.
- a set screw 27 carried by the bushing 24 prevents any rotation of the screws 16, 17, and a further set screw or keying means 28 is carried by the upper arm 29 of the tool support 10 and extends into a slot 30 in the bushing 24 to prevent any rotation of the bushing.
- the inner end of the set screw or keying means 28 is received in the slot 30 so that the bushing 24, which is otherwise guided in a bore 31 in the upper arm 29 is free to move axially but not angularly. This movement is in a relative sense when a slight amount of movement does take place since it is the tool support that shifts slightly, as explained below.
- a pair of springs 32 act between the upper side of the tool support and the bushing 24 so as to relatively urge the bushing 24 away from the slotted frame portion 15. This function can also be described in another sense.
- the spring 32 acts to hold the bushing 24 in an elevated position so that on re-assembly, the lower edge of the bushing 24 will not strike the forward upper leading edge of the slotted portion 15.
- the threads of the pin 16 are usually and preferably made to be of the opposite hand from the threads on the pin 17.
- one set of threads 22 may be conventional right-hand threads while the threads of the other pin would be left-hand threads, or vice versa depending on where it was desired that the handle 23 should repose in the clamped position.
- a punch press having a reciprocable ram, a pair of fixed slotted frame portions adjacent to said ram at opposite sides thereof, a stationary tool support for supporting reciprocable tooling in alignment with the lower surface of said ram and having a pair of vertical pins respectively disposed in the slots of said slotted frame.
- 21 pair of manually-releasable horizontally-acting clamp means carried by said frame for engaging and firmly holding said pins against said frame portions to prevent any horizontal movement of said tool support
- the improvement comprising a second pair of manuallyreleasable vertically-acting clamp means, carried by said tool support for firmly holding said tool support against said frame portions to prevent any rocking thereof about a horizontal axis in response to use of tooling of an asymmetrical shape.
- said second clamp means comprises threaded ends of said vertical pins projecting through said tool support, and a pair of threaded handles carried on said threaded ends and manually movable into firm engagement with the adjacent side of said tool support.
- a punch press according to claim 2 wherein said vertical pins, remotely from their threaded ends, have enlarged heads extending through said tool support, said heads having a shoulder engageable with said slotted frame portions.
- said second clamp means comprises:
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US67010567A | 1967-09-25 | 1967-09-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3456542A true US3456542A (en) | 1969-07-22 |
Family
ID=24689016
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US670105A Expired - Lifetime US3456542A (en) | 1967-09-25 | 1967-09-25 | Tool holding structure for punching machine |
Country Status (1)
Country | Link |
---|---|
US (1) | US3456542A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3270605A (en) * | 1960-11-01 | 1966-09-06 | Houdaille Industries Inc | Punching machine with detachable tool holder |
-
1967
- 1967-09-25 US US670105A patent/US3456542A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3270605A (en) * | 1960-11-01 | 1966-09-06 | Houdaille Industries Inc | Punching machine with detachable tool holder |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: STRIPPIT/DI-ACRO - HOUDAILLE, INC. 12975 CLARENCE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HOUDILLE INDUSTRIES, INC., A CORP OF DE;REEL/FRAME:004381/0716 Effective date: 19850121 |
|
AS | Assignment |
Owner name: STRIPPIT-HOUDAILLE, INC., A DE. CORP.,NEW YORK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STRIPPIT/DI-ACRO-HOUDAILLE, INC., A DE. CORP.;REEL/FRAME:004660/0022 Effective date: 19861208 Owner name: STRIPPIT-HOUDAILLE, INC., 12975 CLARENCE CENTER RO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:STRIPPIT/DI-ACRO-HOUDAILLE, INC., A DE. CORP.;REEL/FRAME:004660/0022 Effective date: 19861208 |