GB770584A - Improvements in or relating to duplex broaching machines - Google Patents

Improvements in or relating to duplex broaching machines

Info

Publication number
GB770584A
GB770584A GB10149/55A GB1014955A GB770584A GB 770584 A GB770584 A GB 770584A GB 10149/55 A GB10149/55 A GB 10149/55A GB 1014955 A GB1014955 A GB 1014955A GB 770584 A GB770584 A GB 770584A
Authority
GB
United Kingdom
Prior art keywords
broaching
slide
pressure
relating
duplex
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
Application number
GB10149/55A
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.)
Lapointe Machine Tool Co Ltd
Lapointe Machine Tool Co
Original Assignee
Lapointe Machine Tool Co Ltd
Lapointe Machine Tool Co
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 Lapointe Machine Tool Co Ltd, Lapointe Machine Tool Co filed Critical Lapointe Machine Tool Co Ltd
Priority to GB10149/55A priority Critical patent/GB770584A/en
Publication of GB770584A publication Critical patent/GB770584A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D37/00—Broaching machines or broaching devices
    • B23D37/08—Broaching machines with vertically-arranged working tools
    • B23D37/12—Broaching machines with vertically-arranged working tools for broaching outer surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D37/00—Broaching machines or broaching devices
    • B23D37/02—Broaching machines with horizontally-arranged working tools
    • B23D37/06—Broaching machines with horizontally-arranged working tools for broaching outer surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

770,584. Broaching; dash-pots. LAPOINTE MACHINE TOOL CO., Ltd. (Lapointe Machine Tool Co.). April 6, 1955, No. 10149/55. Addition to 749,950. Class 83 (3). A duplex broaching- machine as claimed in Claim 1 of the parent Specification comprises means for applying controlled back-pressure to each broaching slide during its working stroke. Each slide 60 carries a cylinder 72 co-operating with a fixed piston 90. A constant-pressure valve 100 controls the movement of each slide on each working stroke and a one-way by-pass valve 102 opens on the return stroke. Any fluid loss is made up by a constant-pressure supply line 105. Specification 754,977 is referred to.
GB10149/55A 1955-04-06 1955-04-06 Improvements in or relating to duplex broaching machines Expired GB770584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB10149/55A GB770584A (en) 1955-04-06 1955-04-06 Improvements in or relating to duplex broaching machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10149/55A GB770584A (en) 1955-04-06 1955-04-06 Improvements in or relating to duplex broaching machines

Publications (1)

Publication Number Publication Date
GB770584A true GB770584A (en) 1957-03-20

Family

ID=9962420

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10149/55A Expired GB770584A (en) 1955-04-06 1955-04-06 Improvements in or relating to duplex broaching machines

Country Status (1)

Country Link
GB (1) GB770584A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113043033A (en) * 2021-04-28 2021-06-29 广州市昊志机电股份有限公司 Electric main shaft broach mechanism, electric main shaft and machine tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113043033A (en) * 2021-04-28 2021-06-29 广州市昊志机电股份有限公司 Electric main shaft broach mechanism, electric main shaft and machine tool

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