CN200963668Y - Electric self-plugging rivet gun - Google Patents

Abstract

An only electric core-drawing rivet gun which can replace manual core-drawing rivet gun to perform riveting work, wherein, a gun type electric drilling motor drives a cam through gears, the cam changes rotation into straight-line reciprocating movement of the drawing lever enclosure in the track through a turning angle; a three-claw tooth is arranged at the other end of the drawing lever enclosure; driven by the motor, the three-claw tooth bites the core-drawing rivet lever to draw the core-drawing rivet lever backwards again and again through reciprocating movement so that the aluminium rivet can rivet the combined workpieces to perform riveting work.

Description

Electric core extraction pneumatic riveter

Affiliated technical field

The utility model relates to a kind of hand electric rivet clasp instrument with core extraction pneumatic riveter rivet clasp combination workpiece.

Background technology

Now on the market and the core extraction pneumatic riveter that uses in the engineering be manual entirely.Hand-tightly hold two smalls of the stock by two, two arms are firmly exerted all one's effort to the centre, spur a bobbin by lever, and three cat's paws are equipped with in bobbin head inside, and three cat's paws are wrapped in the internal conical surface of its outside cylinder die cavity body by means of ring, bite the self-plugging rivet bar and pull back.During operation, steel rivet bar with the self-plugging rivet afterbody inserts in three cat's paws of core extraction pneumatic riveter head earlier, and then core extraction pneumatic riveter just put, aluminium matter rivet is inserted will rivet in the hole of workpiece, again firmly several times with the folding of the self-plugging rivet small of the stock, along with seesawing of bobbin, three cat's paws branch in it spurs the self-plugging rivet bar several times, stub end by the self-plugging rivet bar is big with the thin end compression support of aluminium matter rivet, up to combination workpiece is riveted tightly, last steel rivet bar holds can't stand big pulling force again, in stub end generation constriction, till the fracture, finish a riveted process.

Although manually the small of the stock of core extraction pneumatic riveter has 50 centimeter length, aluminium matter rivet 1-3 millimeter is once only effectively compressed in the both hands folding, but the compression rivet is still very big with the strength of breaking the steel rivet bar, about more than 20 kilograms, and the required number of rivets of general workpiece is more, is again two hand operateds, inconvenience, so labour intensity is big, efficient is low.

Summary of the invention:

For overcoming the deficiency of existing manual core extraction pneumatic riveter, the utility model provides a kind of electric core extraction pneumatic riveter.This electric core extraction pneumatic riveter is powered by city's electrical network, by 220V pistol type electric drill motor, promptly single-phase series excitation type ac motor provides power, and the operator only needs one to hold its small of the stock operation, the another hand can load new rivet or allocation residue rivet bar, and is laborsaving, save time and handled easily.

The technical scheme that the utility model is dealt with problems is: it moves back and forth by three cat's paws and bites the pulling of self-plugging rivet bar, compression aluminium matter rivet is lived workpiece up to riveting, breaking the steel rivet bar, to finish the basic principle and the direct organization of riveting identical with the hand core extraction pneumatic riveter, just power changes by motor provides and the corresponding mechanical reduction gear that increased, rotate and become reciprocator, the extractor electrically-actuated throttle device of residue rivet bar etc.Its profile is continued to use profile, structure and its series excitation type individual event ac motor of habitual at present pistol type electric drill, the pull-type open and close of forefinger button at adjustable speed pistol type electricity routing machine place and the coupled switch of forefinger button elongation degree decision rotating speed.

Structure of the present utility model as shown, motor rotor left end shaft gear 01 is transferred to cam 05, contacts 101 ends that are pressed in turning 1 by the surface through gear 02,03,04, and the 102 end faces of cylinder at turning 1 contact on the inner face of the right-hand member notch that is pressed in pull bar sleeve 2 by the surface.Pull bar sleeve 2 is connected with three-jaw teeth cavity body 8 by screw thread.The spring 4 of pull bar sleeve outside ring set relies on right-hand members to be pressed in to order about on the three-jaw teeth cavity body 8 pull bar sleeve 2 to cooperate with cam 05 by turning 1 formation to left movement and recommends active force, along with the rotation of cam 05, makes pull bar sleeve 2 reciprocating.The interior Zhou Huanbi spring 10 of pull bar sleeve 2 relies on right-hand member to be pressed on the bobbin 6, and bobbin 6 is pressed in three cat's paws by the surface contact and goes up (for clear, only drawing two teeth among the figure).Cylinder 5 slides in the sleeve 11 of the bobbin 6 of left end and right-hand member, leaned against on the interior step of bobbin 6 by the pressure of spring 3.Regulate mouth 9 and be connected with rifle body left end head by screw thread, right-hand member can withstand three cat's paws 7, in order to regulate the length that three cat's paws stretch out cavity 8, is fit to the self-plugging rivet of different-diameter with this.Provide rotating torque by pistol type electric drill motor, to cam 05, the cam 05 that slowly runs is pressed in 101 ends at turning 1 through two stage speed change, and it is pumped under the cooperation of spring 4, thereby makes 102 ends along with making horizontal reciprocating movement.Three cat's paws 7 (three cat's paws in the similar drill chuck head) that the pull bar sleeve 2 of the stake that is abutted against with 102 end activities indirectly pulls in the stake make horizontal reciprocating movement, bite rivet bar one after another and draw to the right.The aluminium rivet on the left side drawn be clipped on the workpiece of wanting fastening, till finishing riveting, rivet bar and breaking (form of breaking is identical with present hand).SPEED CONTROL OF MOTOR is by forefinger cocking switch, and the interior variable resistance travel position of by-pass cock box reaches the angle of flow of control IGCT and realizes.Ready-made this kind electronic speed-adjusting pistol electric drill and switch fitting are arranged in the market.This electric core extraction pneumatic riveter must adopt the electric drill motor of electronic speed regulation, otherwise loading and unloading rivet difficulty.

In the practical operation, the general right hand is held riveting gun.During the firm cocking switch of forefinger, adjustable resistance still is in the state of big resistance, and the IGCT angle of flow is little, and motor rotates slowly, and three cat's paws time of dehiscing is long, is convenient to rivet bar and inserts in three cat's paws.After three cat's paws hold rivet bar in the month, beginning is drawn to the right, induction-motor load increases, motor rotates and slows down, afterburning backward with sensation and sense of hearing nature right hand forefinger, resistance reduces, and the angle of flow increases, and torque strengthens, rotation along with cam, three cat's paws reciprocating to rivet bar implement to hold in the month distance of post-tensioning (about 10 millimeters---unclamp---hold in the month more forward---pull back a distance one unclamp---more forward---several back and forth after, workpiece is lived in the aluminium rivet riveting, can not recompress, rivet bar holds can't stand big pulling force again, constriction takes place, and up to breaking, finishes riveting.The motor that loses load can quicken rotation, and operator's nature this moment can unclamp finger, and electric current reduces rotating speed and slows down or stop.

Withdrawing from of rivet bar: only withdraw from the rivet bar of having broken, the rivet that just can pack into new continues operation.As shown, rivet bar is chewed 9, three cat's paws 7, bobbin 6, cylinder 5, is pressed to spring 3 through adjusting.Be pressed on the spring 3 through cylinder 5 through the rivet bar that three cat's paws draw in,, make spring 3 rivet bar be pushed out simultaneously at the three cat's paws Shi Buhui that travels forward because arm is pressed on the riveting gun in riveting all the time.But when riveting finishes, rivet bar is broken, motor rotated slowly after finger unclamped trigger, it is longer that three cat's paws open the time, riveting gun also no longer is pressed on the workpiece, spring 3 is released rivet bar by cylinder 5, and as long as rivet bar will drop out or assist to pinch out with left hand with rifle upside down this moment.The new rivet of packing into can carry out next riveted process.Figure medi-spring 4 makes pull bar sleeve 2 be in stress left all the time, cooperates with cam 05 to realize that the effect of recommending drives pull bar sleeve 2 and rotates reciprocating with cam.

Under the general operating mode of the utility model, directly powered by city AC network 220V, its adjustable speed switch has finished product to sell, and the general IGCT mode of connection is arranged.Individual event 220V live wire enters one tunnel utmost point of directly receiving bidirectional thyristor behind the button drag switch, and another road is by extremely being gone up by the variable resistance of forefinger control resistance and the control that a two-way diode is connected on bidirectional thyristor.The positive pole of another utmost point order item motor of IGCT, the ground wire of individual event motor and 220V civil power ground wire join.

The beneficial effects of the utility model are: by the power supply of city's electrical network, the energy is taken conveniently.Provide power to reduce labour intensity, increase work efficiency by motor, a hand operated is convenient, simple in structure, also can enlarge range of application.

Description of drawings

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.Be structural representation of the present utility model as shown.

01. motor rotor left end shaft gear among the figure, 02.03.04. travelling gear, 05. cam, 1. turning, the two ends at 101.102. turning, 2. pull bar sleeve, 3. spring, 4. spring, 5. cylinder, 6. bobbin, 7. three cat's paws, 8. three-jaw teeth cavity body is 9. regulated and is chewed, 10. spring, 11. sleeves, 12. signs.

The specific embodiment

As shown, the bearing at the two ends of motor rotor, gear 02.03.04, cam 05, turning 1 is support with electronic riveting gun body.Pull bar sleeve 2 is a cylindrical shape, and the notch of its right-hand member contacts with circular arc 102 end surfaces at turning 1.Its left end and three-jaw teeth cavity body 8 are by the tightening that is threaded.When cam 05 rotates, provide the 102 ends pulling force formation traction thrust to the right at left thrust and turning 1 that rotation is become the reciprocal linear slide of pull bar sleeve 2 in its rifle track body by the spring 4 of pressurized.The tapering of three cat's paws, 7 peripheries is identical with the tapering of three-jaw teeth cavity body 8 inner surfaces, make three cat's paws 7 with respect to its cavity 8 when the left dislocation, dehisce to diminish, its notched teeth can be bitten the self-plugging rivet bar that inserts in it.The thrust of the spring 3 of the pressurized that three cat's paws 7 are transmitted by bobbin 6 is kept closed, and has only when the rivet bar thrust that is subjected to from left side insertion, just opens the wedging rivet bar.When finishing a riveting, the self-plugging rivet bar is broken, operator's palm forefinger unclamps suitable distance of button drag switch, rely on the mechanizing circuit structure of the electronic-controlled IGCT angle of flow that the motor speed of unloading is lowered, pull bar sleeve 2 microinchings are to high order end, three cat's paws, 7 portions of chewing withstand to regulate and chew 9, when being forced to do displacement to the right with respect to three-jaw teeth cavity body 8, it is elongated that three cat's paws are the time of dehiscing greatly, cooperation by means of sleeve 11, bobbin 6, under the effect of compression spring 3 and cylinder 5, the rivet bar in 7 mouthfuls of three cat's paws is pushed out.Sign 12 is used to observe the exercise frequency and the position of pull bar sleeve 2, is convenient to load and unload rivet.

Claims (4)

1, a kind of electric core extraction pneumatic riveter, its contour structures is as the contour structures and the same single-phase AC motor that uses of pistol type electric drill, the forefinger control button pull type switch at pistol type electricity routing machine place, interlock has the device of the forefinger button elongation degree control rotating speed of adjustable speed pistol type electric drill in the switch, it is the structure that changes the IGCT angle of flow and then control inflow motor electric current so that speed governing by the resistance of forefinger control variable resistance, the shaft gear of motor rotor left end (01) slows down to a cam (05) by secondary gear, a conversion equipment is formed in cam (05) and turning (1), with the rotation of cam (05) by can rotation being become the linear reciprocating motion of pull bar sleeve (2) in its track around the turning (1) of its rotation, the periphery of three cat's paws (7) in pull bar sleeve (2) left end is conical, the inner surface of cylindrical three-jaw teeth cavity body (8) and three cat's paws (7) periphery are the inner conical with tapering, three-jaw teeth cavity body (8) is the screw thread tightening with pull bar sleeve (2), spring (4) right-hand member that is located on pull bar sleeve (2) relies on rifle body slideway to be pressed on the ring-shaped step of three-jaw teeth cavity body (8), the internal ring wall spring (10) of pull bar sleeve (2) relies on the right-hand member of pull bar sleeve (2) three cat's paws (7) to be pushed to the left top of three-jaw teeth cavity body (8) by columnar bobbin (6), adjuster (9) is connected with rifle body left end head by screw thread, adjuster (9) right-hand member can touch with it when moving to the top left three cat's paws (7), three-jaw teeth cavity body (8) just can bump sign (12) in the time will moving to left apical position, by bobbin (6), cylinder (5), spring (3), sleeve (11) is formed an extractor, when three cat's paws (7) move to head end and adjuster (9) left when touching mutually with pull bar sleeve (2), three cat's paws (7) open mouth, cylinder (5) slides in the sleeve (11) of the bobbin (6) of left end and right-hand member, leaned against on the step of bobbin (6) by the pressure of spring (3), it is characterized in that: provide power by motor.

2, electric core extraction pneumatic riveter according to claim 1 is characterized in that: break the extractor of back residue rivet bar, be made up of bobbin (6), cylinder (5), spring (3), sleeve (11).

3, electric core extraction pneumatic riveter according to claim 1 is characterized in that: rotation changes reciprocating conversion equipment, is made up of turning (1) and cam (05).

4, electric core extraction pneumatic riveter according to claim 1 is characterized in that: adopt the button pull type switch of forefinger control circuit break-make, interlock has the device of the button elongation degree control rotating speed of using on the adjustable speed pistol type electric drill in the switch.

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