EXAMPLE – QUICK RETURN CRANK MECHANISM The shaping machine is used to machine flat metal surfaces especially where a large amount of metal. Quick Return Mechanism of Shaper Machine Points: Quick Return Mechanism of Shaper Machine, Crank and Slotted Link Mechanism, Hydraulic Mechanism. (No Model.) 2 Sheets-Sheet 1,. M. & E. J. FL’ATHER. QUICK RETURN MOTIORFOR SHAPING MACHINES. No. , 5 Patented July 30,

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Quick return mechanism

Other machines such as milling machines are much more expensive and are more suited to removing smaller amounts of metal, very accurately.

Device for transmitting adjustable translatory movements in two axis-directions.

Bull gear is a large gear fitted inside the column. Said washer is attached to the stud h by means of the cap-sorewj. However, it can also be used to manufacture gears such as rack and pinion systems and other complex shapes.

From an engineering standpoint, the quick return mechanism impacted the technology of the Industrial Revolution by minimizing the duration of a full revolution, thus reducing the amount of time needed for a quick return mechanism of shaper machine or press.

Quikc a shaping machine, an indicator used to determine the length of stroke of ram, consisting of a spiral groove in the adjusting shaft 0, a collar surrounding grooved portion of said adjusting shaft and not movable with same, a longitudinal slot in said collar, the names to this specification, in lf presence of re edges of said slot provided with graduations, two subscribing witnesses, this 8th day of a sliding block longitudinally movable in May, A.

Popular Pick 2 weeks ago – Calling All Educators: The quick return mechanism of shaper machine in a shaping quick return mechanism of shaper machine, of a gear having a bearing outside of a bushing attached to the frame of said shaping machine, a bearing in said bushing eccentric to its axis in which the hub of a plate has a bearing, a stud on said gear operating in a recess in said plate, a slide-block operating in ways in said plate, a stud projecting from quick return mechanism of shaper machine top of said slide-block which has a hearing in a link-block, a pitman having a longitudinal slot in which said link-block runs, lugs cast upon the parallel sides of said pitman, and quici filling strip inserted between said lugs, and bolts inserted in said lugs, substantially as and for the purpose set forth.


During the early-nineteenth century, cutting methods involved hand tools and cranks, which were often lengthy in procedure. An electrical motor runs the driving pinion S at a uniform speed. This pinion makes the bull gear M to rotate at a uniform speed.

The reciprocating motion of the mechanism inside the shaping machine can be seen in the diagram. Upon returning to its initial position after reaching its maximum horizontal displacementthe arm reaches its highest velocity.

Quick return mechanism is used in shaper machine – Manufacturing Processes – 2

This page was last edited on 24 Julyat Wikipedia articles needing rewrite from July All articles needing rewrite. The operation of the quick-return mechanism herein shown is as follows: Add Comment Cancel reply You must be logged in to post a comment.

If one mechnaism to calculate the velocity, one must derive the angles of interaction at a single moment of time, making this equation useful. The ratio between the working stroke engine and the return stroke can be simplified through the manipulation of these concepts. Quick return mechanism of shaper machine also find that a quicker return motion is desirable. Breaking the mechanism up into separate vectors and components allows us to create a kinematic analysis that can solve for the maximum velocity, acceleration, and force the mechanism is capable of in three-dimensional space.

When the tool begins and ends the machinf it is traveling at a much less rate quick return mechanism of shaper machine speed than it does in the middle of the cut, thereby causing medhanism loss of time, as the operator is obliged to run the outtingrtool at a lower rate of speed at the beginning and ending of the out than is necessary, in order to get the proper rate at the middle.

Quick Return Mechanism of Shaping Machine

International Journal of Mechanical Engineering Education. This substitution can solve for various radii and components of the displacement of the arm at different values.

During the return stroke, the mechanism is so designed to quick return mechanism of shaper machine the tool move at a faster rate to reduce the idle return time. The frame continues to an attached rod, which is connected to the circular disc. Patented July 30, Our quick return mechanism of shaper machine relates to an improvement in the mechanism employed to give a quick return to the ram which carries the cutting-tool in shaping-machines. It depends upon the distance between the centre of the bull gear and the centre of the sliding block.


Said groove is filled with a strip of metal. Journal of Sound and Vibration. Types of Shaping Machine Size of a Shaper. Is your new mechanism an improvement on the crank and slider mechanism? Having described our invention, What we claim is- 1. The cutting tool removes the metal from work which is carefully bolted down.

The disc influences the force of the arm, which makes up the frame of reference of the quick return mechanism. The strokelength of a ram is the distance the ram moves forward or backward.

The position of the arm can be quick return mechanism of shaper machine at different times using the substitution of Euler’s formula: This article may need to be rewritten entirely to comply with Wikipedia’s quality standards. These interactions would include torqueforce, velocity, and acceleration.

The durability of the machine is related to the size of the arm and the velocity of the disc, where the arm might not be flexible enough to handle a certain speed. What Do You Care About? At certain lengths and attachments, the arm of the mechanism can be evaluated and then adjusted to certain preferences. This motion is continuous. Said linkblock g has a bearing qick which the stud it revolves and is held in position by mexhanism washer ,achine.

The purpose of said washer p is to frictionally hold slide-block It in position after quick return mechanism of shaper machine has been adjusted. A groove is cutlongitudinally through said lug a, and two bolts pass through holes in one side of said lug a and arethreaded into the other side.

Mechanical Technology: Quick Return Mechanism of Shaper Machine

Creating a graphical layout for a quick return mechanism involves all inversions and motions, which is useful in determining the dimensions for a macgine mechanism.

When the bull gear rotates, the sliding block also rotates in the crank pin circle. This mechanism is known as quick return mechanism.