EP0083304A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Machine with an intermittently rotating table for working and assembly of high-precision parts
Assignee: Mikron SA Agno
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Filing: 1982-12-17
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Granted: —
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Expires: 2002-12-17
Abstract
Abstract The main characteristic of the machine in question is control of operating units (20, 21, 25) either simultaneously for all units or groups of units, or independently of one another. Said units can be fastened vertically over and under the table and also laterally and can receive the rotary movement of a central wheel or independent motors. According to a preferred embodiment, the control of their feed occurs by the central shaft (4). During a work cycle, said shaft makes a vertical movement and transmits the movement to the operating units (20, 21) by radial linear cams (16, 17, etc.), i.e., feed and return occur during a single movement of the shaft (4), for example, downward. During an idle time, i.e., the time used to move and index the table (8), the central shaft (4) is also turned at a certain angle so that the linear cams are no longer in contact with the operating units and in this position the central shaft is returned without influencing the operating units. Thus it is possible to give the operating units any feed and return characteristic as occurs for machines with rotary cams, while having very simplified kinematics.
Inventors
- 👤 Michelangelo C/O Dr. Arno Ballinari Gippa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 05:49
CPC Classifications
B; B23; B23Q; B23Q39/00; B23Q39/04; B23Q39/042; B23P; B23P21/00; B23P21/004; B23P21/006; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5124; Y10T29/5127; Y10T29/5128; Y10T29/5152; Y10T29/5154; Y10T29/5157; Y10T29/5159; Y10T29/516; Y10T29/5162; Y10T409/00; Y10T409/30; Y10T409/306048; Y10T409/306104; Y10T82/00; Y10T82/25; Y10T82/2511
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
168 words
Machine with intermittently rotary table for working and assembly of high-precision parts, comprising operating units placed above, below and laterally to the rotary table, control of the feed of the work units occurring by the central shaft, coaxial with the rotary table, characterized in that said central shaft (4) during a work cycle, makes an axial movement, transmitting the feed and return movement to the operating units (20, 21, 25, etc.) by radial linear cams (16, 17, etc.) while during an idle time, i.e., the time used to move and fasten (index) (13) the rotary table (8), said central shaft is rotated angularly so that the radial linear cams (16, 17) do not contact said operating units (20, 21, 25, etc.) and in this position return of the central shaft (4) to its initial position is performed without influencing said operating units; control of the feed of the various working units being able to occur simultaneously for all units or groups of units or independently of one another.
Claim 2
Dependent Claim
168 words
Machine with intermittently rotary table for working and assembly of high-precision parts, comprising operating units placed above, below and laterally to the rotary table, control of the feed of the work units occurring by the central shaft, coaxial with the rotary table, characterized in that said central shaft (4) during a work cycle, makes an axial movement, transmitting the feed and return movement to the operating units (20, 21, 25, etc.) by radial linear cams (16, 17, etc.) while during an idle time, i.e., the time used to move and fasten (index) (13) the rotary table (8), said central shaft is rotated angularly so that the radial linear cams (16, 17) do not contact said operating units (20, 21, 25, etc.) and in this position return of the central shaft (4) to its initial position is performed without influencing said operating units; control of the feed of the various working units being able to occur simultaneously for all units or groups of units or independently of one another.
Claim 3
Dependent Claim
32 words
Machine as in claim 1, wherein the rotary movement is imparted to the operating units (20, 21, 25, etc., fig. 1, 2, 3) by a central wheel (22) or independent motors (21').
Claim 4
Dependent Claim
113 words
Machine as in claims 1 and 2, wherein a motor (1) transmits the rotary movements to two auxiliary shafts (2, 3), parallel to the central shaft (4) by a reducer (5); one of said auxiliary shafts (2) controlling a maltese cross device (6, 7) that transforms the continuous rotary movement into an intermittent movement to drive the rotary table (8); there being fastened to the base of said auxiliary shaft (2) a drum cam (9) which, acting on rollers (10) causes the axial movement of the central shaft (4); there also being fastened to said auxiliary shaft (2) a second drum cam (11) that controls the fixing (indexing) of the rotary table (8).
Claim 5
Dependent Claim
186 words
Machine as in claim 1, 2, 3 wherein at both ends of the central shaft (4) are placed two cylindrical bodies (14 and 15) on which are radially fastened linear cams (16, 17, etc.) which, by rollers (18, 18') and levers (19, 19') control the movement of the operating units (20, 21, 25); the whole is so designed that during work time of the operating units (20, 21) the central shaft (4) makes a downward movement, while during rotation of the rotary table (8), the shaft is rotated a certain angle by a cam (23) fastened to the other auxiliary shaft (3), so that said radial linear cams (16, 17) are no longer in contact with said rollers (18, 18') and therefore no longer control the operating units (20, 21, 25) and the return of the central shaft (4) occurs without influencing the operating units themselves; when the return has occurred, said central shaft (4) is rotated angularly in starting position so that the return and rotation of said central shaft occurs in idle times, i.e., during the rotating and indexing of said rotary table (8).
Claim 6
Dependent Claim
69 words
Machine as in claim 3, wherein the maltese cross is controlled by a device comprising a rotary body (37, fig. 4) which in turn is controlled by said auxiliary shaft (2) and by a toothed segment (40, fig. 5) solid with a roller (38) which engages in a stationary cam (39); said toothed segment (40) fitting with a cogwheel (41) solid with the shaft carrying said maltese cross (35).
Claim 7
Dependent Claim
115 words
Machine as in claim 1 with independent control of the various work units, characterized (fig. 6 and 7) by first elements (9, 10) able to impart the axial movement to the central shaft (4); second elements (34, 29, 14, 30, 32) able to connect each work unit (20, 20') to said central shaft (4) to control the feed of each unit directly, using the axial movement of said central shaft; and third elements (19', 31) able to connect each work unit to said central shaft by intermediate elements (16, 18') to control the feed of each work unit (20, 20') indirectly, independently of the others, still by using the-axial movement of said central shaft (4).
Claim 8
Dependent Claim
80 words
Machine as in claim 6, wherein said first elements comprise: a drum cam (9) solid with an auxiliary shaft (2) parallel to the central shaft (4) and which receives the rotary movement, by a reducer, from the main motor (1), said drum cam (9) acting on rollers (10) which cause the axial movement of the central shaft (4); said auxiliary shaft (2) further transmitting the intermittent movement to the rotary table (8) by a maltese cross device (7', 6', 7").
Claim 9
Dependent Claim
63 words
Machine as in claim 6, wherein said second elements comprise for each work unit (20, 20') a lever (34) engaging in a bushing (14) solid with said central shaft (4) and in a groove (30) of the micrometrically adjustable support (29, 29') that carries the respective work units (20, 20') able to travel on roller elements (32, 32') on the respective support (33).
Claim 10
Dependent Claim
65 words
Machine as in claim 6 and 8 wherein said third elements comprise, for each work unit, a linear cam (16) solid with said bushing (14) and a square lever (19') whose end is provided with a roller (18') that travels on said linear cam (16) while the other end (31) engages with the micrometrically adjustable end (29, 29') in the corresponding work unit (20, 20').
References Cited (Backward Citations)
No citation records indexed.
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