US3780595A - Linear motion mechanism and motion amplifying device therefor - Google Patents

Linear motion mechanism and motion amplifying device therefor Download PDF

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Publication number
US3780595A
US3780595A US00278339A US3780595DA US3780595A US 3780595 A US3780595 A US 3780595A US 00278339 A US00278339 A US 00278339A US 3780595D A US3780595D A US 3780595DA US 3780595 A US3780595 A US 3780595A
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US
United States
Prior art keywords
drive element
slide block
frame
slide
mounting frame
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
Application number
US00278339A
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English (en)
Inventor
J Tuss
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.)
Warner and Swasey Co
Original Assignee
Bendix Corp
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 Bendix Corp filed Critical Bendix Corp
Application granted granted Critical
Publication of US3780595A publication Critical patent/US3780595A/en
Assigned to WARNER & SWASEY COMPANY, THE reassignment WARNER & SWASEY COMPANY, THE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BENDIX CORPORATION, THE
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/16—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and oscillating motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/341—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission cam-operated
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating

Definitions

  • ABSTRACT A linear motion mechanism is disclosed consisting of an output member comprising a slide block mounted for sliding linear movement on a slide frame, which slide frame is in turn detachably secured to a vertical drive assembly including a mounting frame having a vertically extending mounting surface formed thereon.
  • the slide block is drivingly connected to a motion amplifying mechanism carried on the mounting frame including an input push link on which is rotatably mounted a rotary drive element engaged with a drive chain fixed at one end and connected at the other end to the slide block so that the motion of the slide block is an amplification of the motion of the push link in direction away from the chain ends.
  • the push link is translated by a rotary cam and pivoted lever pinned to one end of the push link.
  • the slide block and slide frame are adapted for use separately from the mounting frame and motion amplification mechanism by mounting it on a horizontalsurface and directly engaging the slide block with a rotary cam.
  • a further object is to provide a motion amplification device incorporated in this mechanism which is readily assembled from low cost commercially available components, and which contributes to the flexibility of application of the device.
  • a linear motion mechanism consisting of an output member comprising a slide block mounted for sliding linear movement on a slide frame, which slider frame is in turn detachably secured to a vertical drive assembly including a mounting frame on a vertically extending mounting surface formed thereon.
  • the slide block is drivingly connected to a motion amplifying mechanism carried on the mounting frame including an input push link on which is rotatably mounted a rotary drive element engaged with a drive chain fixed at one end and connected at the other end to the slide block so that the motion of the slide block is an amplification of the motion of the push link in direction away from the chain ends.
  • the push link is translated by a rotary cam and pivoted lever pinned to one end of the push link.
  • the slide block and slide frame are adapted for use separately from the mounting frame and motion amplification mechanism by mounting it on a horizontal surface and directly engaging the slide block with a rotary cam.
  • FIG. 1 is a side elevational view of the linear motion mechanism according to the present invention.
  • FIG. 2 is a rear elevational view of the linear motion mechanism according to the present invention.
  • FIG. 3 is a plane view of the linear motion mechanism according to the present invention.
  • FIG. 4 is a plane view of the detachable slide block assembly portion of the linear motion mechanism in its separate mode of use.
  • FIG. 5 is a side elevational view of the slide block assembly shown in FIG. 4.
  • FIG. 6 is a front elevational view of the slide block assembly shown in FIGS. 4 and 5.
  • FIG. 1 which includes a slide block assembly 12 and a vertical drive assembly 14.
  • the slide block assembly 12 may be used in conjunction with the vertical drive assembly 14 in order to obtain a vertical linear motion as pictured in FIG. 1 or by itself in order to obtain horizontal linear motion (as shown in FIGS. 4-6). While the complete linear motion mechanism 10 will be first described in reference to FIGS. 1-3, reference will also be made to FIGS. 4-6 in describing certain details of the slide block assembly 12 since these details are better seen in those figures.
  • the slide block assembly 12 includes a slide block 16 (FIGS. 1, 4-6) which is slidably mounted for constrained linear motion on a slide frame 18 by means of four slide rod 20, 22, 24, and 26 fixed at either end in end portions 28 and 30.
  • Slide rods 24 and 26 primarily perform this function and pass through bores formed through the length of the lower portion of the slide block 16, with wiper seals 32 provided protecting slide bearings 34 included for this purpose.
  • Slide bars 20 and 22 are provided primarily to mount a pair of compression springs 36 and 38 which engage the end portion 28 of the slide frame at one end, and ears 40 and 42 formed on the slide block 16 at the other end, and accordingly slide bars 20 and 22 pass through openings in ears 40 and 42.
  • Compression springs 36 and 38 serve to provide a bias force urging the slide block 16 in a downward direction as viewed in FIG. 1 and to the right as viewed in FIGS. 4 and 5.
  • An adjustable stop arrangement is provided by a threaded adjustable stop rod 44 threaded into a web 46 formed by opening 48 in slide block 16 and also fitted into a bore 50 formed in web 52 formed by a clearance recess 54 formed in slide block 16.
  • a locking nut 56 is provided to secure the stop rod 44 in any adjusted position.
  • a fixed stop 58 is provided to cooperate with the end of the stop rod to thus accurately locate the slide block 16 in its forward position, secured to a projection 60 formed in slide frame 18 adapted to fit within the recess 54.
  • the slide block 16 functions as the output member of the device, and for this reason is provided with a surface 62 having a series of tapped holes 64 for the purpose of mounting tooling, etc., required for the particular application.
  • the slide block assembly 12 is detachably mounted to a vertical mounting surface 66 formed on the mounting frame 68 of the vertical drive assembly 14 mating with a similar surface 70 formed on the slide frame 12 and retained theretogether by a series of cap-screws 72.
  • the slide block 16 is driven by means of an integral arm portion 74 extending through an elongated opening 76 formed within the region of the mounting surface 70, of the slider frame 16 and a similar opening 78 formed in the mounting frame 68.
  • the arm portion 74 is driven by a motion mechanism 79 which includes a flexible drive element shown as a link chain 80 connected at one end to the arm portion 74, which extends to a rotary drive element, shown as a sprocket 82, passing at least partly around its periphery and then extending in a generally opposite direction to a fixed anchor point 84 to which the other end of the link chain 80 is fixed.
  • a motion mechanism 79 which includes a flexible drive element shown as a link chain 80 connected at one end to the arm portion 74, which extends to a rotary drive element, shown as a sprocket 82, passing at least partly around its periphery and then extending in a generally opposite direction to a fixed anchor point 84 to which the other end of the link chain 80 is fixed.
  • the sprocket 82 is rotatably mounted on a motion mechanism input member comprising a push link 86, having an end member which is forked at its end 90 to accommodate the sprocket 82 and slotted at 92 in order to accommodate a pin 94 fixed to a yoke 96 in turn fastened to the upper portion of the mounting frame 68.
  • the constraint exerted by the pin-and-slot relationship between the push link 86 and the mounting frame 68 prevents angular motion of the push link 86 at any given translational position so as to maintain a given position of the sprocket 82 and the chain 80.
  • a protective cover 98 is also provided.
  • the push link 86 is caused to be translated by means of a pivoted connection to a pivoted lever means 100 which is caused to oscillate by means of the radial face of a rotary cam plate 102 engaging a cam follower'l04 carried by the opposite end of the pivoted lever means 100.
  • the mounting frame 68 is adapted to be mounted on a horizontal surface 106 by means of its lower bracket section 108 including a pair of flanges 110 and 112 at the ends of gussets 114 and 116.
  • the rotation of the rotary cam plate 102 causes oscillation of the pivoted lever means 100, which in turn causes translation upwardly (and slight rotation) of the push link 86 togetherwith the sprocket 82 carried thereby.
  • the rotary cam, pivoted lever means 100, push link 86, and motion mechanism 79 comprise a drive means whereby the attached slide block 16 is moved by sliding motion on the slide frame 18 a distance slightly less than twice that of the translation of the push link 86 against the bias of the compression springs 36 and 38.
  • the push link 86 is moved downwardly, allowing the compression springs 36 and 38 (and the force of gravity) to move the slide block 16 and the attached chain 80 downwardly the the return position.
  • the motion mechanism 79 provides an extremely simple and compact motion amplification device, which is constructed of inexpensive standard commercial items.
  • slide block assembly 12 is shown in its separate mode of use, and
  • the slide block 16 is reciprocated linearly by r0- tation of the rotary cam 124 to provide a horizontal linear motion.
  • a linear motion mechanism comprising:
  • drive means including a motion mechanism carried by said mounting frame and drivingly connected to said slide block causing said slide block to undergo said linear motion on said slide frame and further including an arm portion fixed to said slide block and passing through openings in said slide frame and mounting frame within said mating mounting surfaces.
  • said drive means motion mechanism includes a rotary drive element rotatably supported on an input member, a flexible drive element extending onto said rotary drive element and passing around at least a portion of the periphery of said drive element and extending off said rotary drive element in a generally opposite direction, means fixing one end of said flexible drive element to said mounting frame and the other end to said slide block, whereby movement of said input member away from said flexible drive element ends results in amplilied movement of said slide block.
  • said drive means further includes a pivoted lever means, means for oscillating said pivoted lever means, and means pivotally connecting one end of said lever and said slotted push link.
  • said drive means further includes resilient bias means resiliently biasing said slide block in a direction opposite to the direction in which said slide block is driven by said connection with said flexible drive member.
  • a motion amplifying arrangement comprising:

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
US00278339A 1972-08-07 1972-08-07 Linear motion mechanism and motion amplifying device therefor Expired - Lifetime US3780595A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27833972A 1972-08-07 1972-08-07

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US3780595A true US3780595A (en) 1973-12-25

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US00278339A Expired - Lifetime US3780595A (en) 1972-08-07 1972-08-07 Linear motion mechanism and motion amplifying device therefor

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JP (1) JPS4951457A (enrdf_load_html_response)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404870A (en) * 1981-06-18 1983-09-20 Ayakazu Atumaru Reciprocator for paint gun
CN102128249A (zh) * 2011-03-17 2011-07-20 中国神华能源股份有限公司 一种传动装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US831675A (en) * 1906-04-30 1906-09-25 Claude M Mcafee Well-drilling machine.
US1853425A (en) * 1928-09-07 1932-04-12 Gen Motors Corp Guard for presses
US2263981A (en) * 1940-11-25 1941-11-25 Gen Motors Corp Safety guard for industrial trucks
US2502057A (en) * 1947-04-04 1950-03-28 James A Mitchell Power pump jack

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US831675A (en) * 1906-04-30 1906-09-25 Claude M Mcafee Well-drilling machine.
US1853425A (en) * 1928-09-07 1932-04-12 Gen Motors Corp Guard for presses
US2263981A (en) * 1940-11-25 1941-11-25 Gen Motors Corp Safety guard for industrial trucks
US2502057A (en) * 1947-04-04 1950-03-28 James A Mitchell Power pump jack

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404870A (en) * 1981-06-18 1983-09-20 Ayakazu Atumaru Reciprocator for paint gun
CN102128249A (zh) * 2011-03-17 2011-07-20 中国神华能源股份有限公司 一种传动装置
CN102128249B (zh) * 2011-03-17 2013-12-04 中国神华能源股份有限公司 一种传动装置

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Publication number Publication date
JPS4951457A (enrdf_load_html_response) 1974-05-18
DE2337401B2 (de) 1977-02-03
DE2337401A1 (de) 1974-02-21

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Legal Events

Date Code Title Description
AS Assignment

Owner name: WARNER & SWASEY COMPANY, THE, 11000 CEDAR AVENUE,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE 10-01-84;ASSIGNOR:BENDIX CORPORATION, THE;REEL/FRAME:004355/0142

Effective date: 19841221