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mechanical press drives

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Published: 01 February 2005
Fig. 11.23 Four-bar linkage mechanism for mechanical press drives More
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Published: 01 August 2012
Fig. 10.5 Common drives for mechanical presses: (a) crank press, (b) link drive press, and (c) knuckle joint press. Source: Ref 10.9 More
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Published: 01 August 2012
Fig. 11.9 A conventional four-point straight-side mechanical press drive. Source: Ref 11.12 More
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Published: 01 August 2012
Fig. 11.1 Schematic of servo-drive press (a) without and (b) with linkage mechanism. Source: Ref 11.5 More
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Published: 01 August 2012
Fig. 10.2 Common drive types of mechanical presses. Adapted from Ref 10.1 More
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Published: 01 February 2005
Fig. 11.8 Schematic of a mechanical press with eccentric drive (clutch and brake on eccentric shaft). [ Altan et al., 1973 ] More
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Published: 01 February 2005
Fig. 11.16 Principle of the scotch-yoke type drive for mechanical presses. [ Altan et al., 1973 ] More
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Published: 01 February 2005
Fig. 11.29 A screw press drive that combines the characteristics of mechanical and screw presses. 1, flywheel; 2, oil-operated clutch; 3, screw; 4, ram; 5, lift-up cylinders. [ Altan, 1978 ] More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400161
EISBN: 978-1-62708-316-4
... by servo motors, the other by a mechanical crank. electromechanical servo-drive press servo motors ELECTROMECHANICAL SERVO-DRIVES have been used in machine tools for several decades. Recently, several press builders, mainly in Japan and Germany, developed gap and straight-sided sheet metal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400145
EISBN: 978-1-62708-316-4
... Abstract The load-displacement capabilities of a mechanical press are determined largely by the design of its drive mechanism or, more precisely, the linkage through which the drive motor connects to the slide. This chapter discusses the primary types of linkages used and their effect on force...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040115
EISBN: 978-1-62708-300-3
... Principal components of a mechanical forging press. [ ASM Handbook, 1988 ] Two major groups of mechanical presses are: Presses with crank drive Presses with cam drive Crank presses may have either simple or extended crank drives. Conventional crank presses (the total stroke cannot...
Book Chapter

By Eren Billur
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400181
EISBN: 978-1-62708-316-4
... are used to store energy, similar to the flywheel in a mechanical press or capacitance in servo-drive presses. Accumulator-drive presses are favored if the press has long idle periods between cycles, or very large press capacities are required, on the order of 9,000 to 45,000 metric tons (10,000 to 50,000...
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Published: 01 August 2012
Fig. 10.15 Vertical stiffness ( C ) of one-point (1p Mech), two-point (2p Mech), and four-point (4p Mech) mechanical presses, bottom knuckle joint (KJ bottom) drives, and top-knuckle joint (KJ top) drives. Source: Ref 10.21 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040107
EISBN: 978-1-62708-300-3
..., i.e., the point where the resultant total forming load vector is applied, should be placed under the center of loading of the forming machine. In presses (mechanical, hydraulic, or screw), where the press frame and the drive mechanism are subject to loading, the stiffness, C, of the press is also...
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Published: 01 August 2012
Fig. 10.16 Angular stiffness ( C θ ) of one-point (1p Mech), two-point (2p Mech), and four-point (4p Mech) mechanical presses, bottom knuckle joint (KJ bottom) drives, and top-knuckle joint (KJ top) drives. Source: Ref 10.21 More
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Published: 30 April 2020
Fig. 6.12 Cross-sectional view of a small mechanical compaction press, where an electric motor drives the system. The enlarged view sketches the type of tool set that would be inserted in this press. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400129
EISBN: 978-1-62708-316-4
... for attaching the bottom die to the press. A drive mechanism (3) that moves the slide (4) at a right angle to the bolster The gibs (5) that guide the reciprocating motion of the slide and ensure the parallelism of the slide to the bolster Fig. 9.2 Terminology used for (a) basic press...
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Published: 01 August 2012
Fig. 11.33 Comparison between the slide motions of 1100-ton mechanical and servo-drive presses for identical slide velocity during forming. Source: Ref 11.12 More
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Published: 01 August 2012
Fig. 11.2 Various portions of the slide motion in a typical mechanical press with eccentric or crank shaft drive. TDC, top dead center; BDC, bottom dead center. Source: Ref 11.7 More
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Published: 01 August 2012
Fig. 10.11 (a) Schematic of a mechanical (crank or eccentric) press. Source: Ref 10.17 . (b) Free body diagram of the drive. BDC, bottom dead center; TDC, top dead center. Source: Ref 10.18 More