Technical field
The present invention relates to a kind of pay-off, be specifically related to a kind of pneumatic type revolution variable speed feed device.
Background technology
Swinging gear is a kind of common physical construction, is widely used in various physical constructions.General swinging gear is all to adopt motor to drive, and by its rotation of driven by motor, realizes reciprocal swing process.But the fork of driven by motor is difficult to accomplish the velocity variations in swing process, and can not rest on maximum position for a long time, otherwise have the situation generation that damages motor.
Summary of the invention
The object of the present invention is to provide a kind of pneumatic type revolution variable speed feed device, the motor-driven swinging gear of abandoning tradition, has advantages of that feeding swing speed is variable.
For achieving the above object, technical scheme of the present invention is: pneumatic type revolution variable speed feed device, comprise support, and on described support, be fixed with a cylinder, the plunger shaft Eccentric-hinge of described cylinder is connected on gyrostat, is coaxially provided with a driving gear on described gyrostat; On described driving gear, be engaged with a driven gear, on described driven gear, bias is provided with a drive balls; On described support, be also hinged with a feeding rocking arm, described feeding rocking arm free end is provided with work-holding jaw, and the stage casing of described rocking arm offers a chute, and described drive balls is fixed in chute.
While adopting technique scheme, under cylinder drives, piston rod drives gyrostat reciprocating rotation, on gyrostat, the coaxial driving gear arranging also turns round, drive with the driven gear of its engagement simultaneously and rotate, due to eccentric setting on driven gear a drive balls, and drive balls inserted in the chute in rocking arm stage casing, so just makes driven gear can drive rocking arm to swing around hinge-point by drive balls in the process of rotating.And because drive balls is eccentric setting, so the swing speed of rocking arm occur two ends fast in the middle of slow situation, its swing speed can need to be regulated according to actual feeding.
Further, described support vertically arranges, and described gyrostat, driving gear, driven gear and fork are arranged on the same side of support.The arrangement of above-mentioned parts can reducing mechanism overall volume, reach the requirement of use.
Further, on described support, be also provided with the block of restriction rocking arm amplitude of fluctuation.By the amplitude of fluctuation that block can manual control rocking arm is set, and then realistic use needs.
Further, described block is provided with pressure sensor, and described pressure sensor connects the control setup of cylinder by treater.By pressure sensor, collect signal, can pass through the action of the automatic control cylinder of treater, realize automatic reciprocating feeding.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the structural representation of pneumatic type revolution variable speed feed device embodiment of the present invention.
The specific embodiment
As shown in Figure 1, pneumatic type revolution variable speed feed device of the present invention, comprises support, is fixed with a
cylinder 1 on support, and the piston of
cylinder 1 catches up with Eccentric-hinge to be connected on
gyrostat 11, on
gyrostat 11, with axle key, connects a
driving gear 2; On driving
gear 2, be engaged with a driven
gear 3, on driven
gear 3, bias is provided with a
drive balls 31; On support, be also hinged with a Rocker
arm 4, the stage casing of described Rocker
arm 4 offers a
chute 41, and
drive balls 31 is fixed in chute 41.On support, be also provided with the
block 5 of restriction Rocker
arm 4 amplitude of fluctuation.By the amplitude of fluctuation that
block 5 can manual control Rocker
arm 4 is set, and then the use of realistic
feeding needs.Block 5 is provided with pressure sensor, and described pressure sensor connects the control setup of
cylinder 1 by treater.By pressure sensor, collect signal, can pass through the action of the
automatic control cylinder 1 of treater, realize automatic reciprocating feeding.
During use, under
cylinder 1 drives, piston rod drives gyrostat 11 reciprocating rotations, on gyrostat 11, the
coaxial driving gear 2 arranging also turns round, drive with the driven
gear 3 of its engagement simultaneously and rotate, due to eccentric setting on driven
gear 3
drive balls 31, and
drive balls 31 inserted in the
chute 41 in Rocker
arm 4 stage casing, so just makes driven
gear 3 can drive Rocker arm 4s swing around hinge-point by
drive balls 31 in the process of rotating.And because
drive balls 31 is eccentric settings, so the swing speed of Rocker
arm 4 occur two ends fast in the middle of slow situation, its swing speed can be regulated according to actual needs.
Above-described is only the preferred embodiment of the present invention; should be understood that; for a person skilled in the art; do not departing under the prerequisite of structure of the present invention; can also make some distortion and improvement; these also should be considered as protection scope of the present invention, and these can not affect effect of the invention process and practical applicability.