CN2478736Y - Nut riveter - Google Patents

Abstract

The utility model relates to a nut riveter which is composed of a gun body, a gun head, a pneumatic motor, an assignment machine, a switch, an air pressure system and an oil pressure system, wherein tA rivet nut gun is composed of a body, a head, a fan motor, a distributor, a switch, a compress system, and a hydraulic system, wherein the head is connected with the rotor of the fan motor, and the dhe gun head is connected with a rotor of the pneumatic motor; the assignment machine which has two air entering passages is sheathed on a motor seat. While in use, the oil pressure system makes the guistributor is sheathed on a motor base, provided with two air inlet channels. When in use, the hydraulic system makes the head to rivet work-piece, to generate pressure area between the end cover and n head aligned with a workpiece for riveting, and an air pressure section is formed between an end cover and the assignment machine. The oil pressure system is cut off because of the action of an overthe distributor, and via an overflow hole in the pressure area, to cut off the hydraulic system, under the pressure air, the distributor moves forwards to turn on a reverse air channel to rotate the fflow hole in the air pressure section. The assignment machine moves forward under the action of the air pressure section in order to open a reversal air passage and make the pneumatic motor rotate revan motor reversely, and move out the head from work-piece, thereby realizing rivet, reverse rotation and return functions. ersely, and the gun head exits from the workpiece, so the functions of automatic riveting, reverse rotation and restoration are realized.

Description

Nut riveter

The utility model relates to a kind of pneumatic tool, refers more particularly to a kind of pneumatic tool of riveting nut.

At present, on the market all be pneumatic tool at home from German import with the pneumatic tool of the direct riveting of nut on workpiece, two jettrons are arranged on this instrument, a switch mainly act on be with the nut riveting on the rifle head on workpiece; The effect of another switch is to make the counter-rotating of rifle head, and the rifle head is withdrawed from from nut.Though this Nut riveter structure is easier, the workman is in use extremely inconvenient, the necessary high concentration of thought, and the precedence of two switches can not be put upside down, otherwise can influence operating efficiency because of button staggers to close.

The purpose of this utility model just provides a kind of novel Nut riveter, pull switch after, can be disposable finish riveted joint, the rifle head reverses and reset function, shortens working hours, increase work efficiency.

The purpose of this utility model is achieved in that this Nut riveter is by the rifle body, cylinder piston, the rifle head, blower motor, pivot in the rotation, switch, spring, push rod and end cap etc. are partly formed, the rifle head is fixed in the rotation on the pivot by contiguous block, pin axial sleeve is contained in the piston rod in the rotation, blower motor is installed in the motor seat of back by bearing, the motor seat is by being threaded on the piston rod, the blower motor rotor is fixed together by pivot in the rotation in planet pin and the piston rod, piston rod by spring and the firm nut sleeve of spring in the rifle body, the other end withstands on the spheroid of motor base rear end, be with a distributor on the motor seat, the motor base rear end is fixed with end cap, on the motor seat, there is one just changeing gas passage and a counter-rotating gas passage, an inlet channel A is arranged on distributor, inlet channel A just in time links to each other with just commentaries on classics gas passage on the motor seat in not use, it is characterized in that: an inlet channel B is arranged on distributor, an air leakage hole is arranged on the end cap.Inlet channel B controls by switch, when not detaining switch, does not have air pressure among the inlet channel B.When pulling switch, connect gas circuit among the inlet channel B on the one hand, open reversal valve on the other hand, by air supply pipe air feed in the cylinder of rifle body lower end, make cylinder piston produce thrust upwards, and oiling in the oil pressure district between rifle body and piston rod, promoting piston rod moves backward, driving motor seat and end cap moves together backward, and cut off and just changeing the gas passage, when end cap moves to the top, just in time open another inlet channel B on the distributor, make between distributor and the end cap and produce the baric area, reversal valve is because the actuating pressure decline of air leakage hole on the one hand, impel that valve piston resets in the reversal valve, drive the rotation maincenter at the effect lower piston rod of spring and move before axially and reset; Under baric area pressure effect, promote distributor again and travel forward with respect to the motor seat on the other hand, the counter-rotating gas passage of inlet channel and blower fan seat on the distributor is connected, the blower motor counter-rotating is withdrawed from the rifle head from nut.At last, owing on the end cap air leakage hole and another normal open baric area are arranged, atmospheric pressure moves distributor backward, distributor is returned to use preceding state.

The utility model compared with prior art has following advantage: pull disposable riveted joint, counter-rotating and the reset function finished behind the switch, instrument in use, easy and simple to handle, safety, staking speed is fast, has improved operating efficiency.

Below in conjunction with accompanying drawing the utility model is done further narration.

Fig. 1 is the structural representation of Nut riveter described in the utility model

Fig. 2 is the D-D cut-away view of Nut riveter shown in Figure 1

Fig. 3 is the E-E cut-away view of Nut riveter shown in Figure 1

Fig. 4 is the F-F cut-away view of Nut riveter shown in Figure 1

Partial cutaway diagrammatic sketch when Fig. 5 works for Nut riveter

1. cylinder end piece; 2. cylinder piston; 3. air flood standpipe; 4. rifle body; 5. oil cylinder piston bar; 6. cylinder cover; 7. reversal valve; 8. pressure channel; 9. starting handle; 10. switch; 11. oil pressure pipeline; 12. rifle head capsule; 13. rifle head; 14. contiguous block; 15. spring clamp nut; 16. spring; 17. pivot in rotating; 18. planet pin; 19. piston rod; 20. motor seat; 21. push rod; 22. bearing; 23. ball; 24. bonnet; 25. end cap; 26. air leakage hole; 27. inlet channel B; 28. distributor; 29. just changeing the gas passage; 30. inlet channel A; 31. change the gas passage; 32. baric area; 33. blower motor; 34. oil pressure district; 35. air inlet; 36. baric area.37 valve pistons; 38 air leakage holes; 39 silencers.

Nut riveter described in the utility model is made up of pivot 17, switch 10, spring 16, distributor 28, piston rod 19 and end cap 25 parts in rifle body 4, cylinder piston 2, rifle head 13, blower motor 33, the rotation, cylinder piston 2 is sleeved on the bottom of rifle body 4, oil cylinder piston 5 one ends are sleeved in the rifle body 4 by cylinder cover 6, the other end is fixed in the cylinder piston 2, and the bottom of rifle body 4 is fixed with cylinder end piece 1; Piston rod is sleeved in the rifle body 4 by spring 16 and spring clamp nut 5, blower motor 33 is fixed in the motor seat 20 by bearing 22, pivot 17 is fixed together by the rotor of planet pin 18 with blower motor 33 in the rotation, motor seat 20 is fixed on piston rod 19 by being threaded, and will rotate center axle 17 and be sleeved in the piston rod 19, rifle head 13 is fixed in the rotation on the pivot 17 by contiguous block 14; On motor seat 20, there is one just changeing gas passage 29 and a counter-rotating gas passage 31 respectively, a push rod 21 is arranged at the center of blower motor 33, push rod 21 1 ends withstand in the rotation in the pivot 17, the other end withstands on a spheroid 23, spheroid 23 just in time gets lodged in just to be changeed in the gas passage 29, rear end at motor seat 20 is set with a distributor 28 by end cap 25, have in the distributor 28 an inlet channel A30 just in time with motor seat 20 on just commentaries on classics gas passage 29 communicate, a baric area 32 is arranged between motor seat 20 and distributor, baric area 32 has an inlet channel 36 to link to each other with inlet channel A30, it is characterized in that: another inlet channel B27 is arranged on distributor 28, an air leakage hole 26 is arranged on the end cap 25, inlet channel B27 is controlled by switch 10, and the throughput sum of the throughput of inlet channel 36 and air leakage hole 26 must be less than the throughput of inlet channel B27.As can be seen, only pull switch 10 from Fig. 2-Fig. 4, inlet channel B27 just connects air pressure, connects air pressure among the inlet channel A30 always.In use, at first with nut precession rifle head 13 1-2 teeth, touch inwards again, promote spheroid 23 by pivot 17 in rotating and push rod 21, opening just changes gas passage 29, blower motor 33 is just being changeed nut is tightened on the rifle head 13, pulls the effect of switch 10 by starting handle 9 then, open pressure channel 8, because pressure channel 8 communicates with inlet channel B27.Open inlet channel B27 on the one hand, make among the inlet channel B27 and be full of air pressure, on the other hand in pressure channel 8 under the gas pressure, valve piston 37 is moved down, impel air supply pipe 3 to communicate with inlet channel A30, move down for the ease of valve piston 37, the sectional area of the G place ventilation of valve piston 37 must be greater than the sectional area at H place.Make in the air supply pipe 3 and be full of air pressure, promote cylinder piston 2 and move upward, oiling in the oil pressure district 34 between rifle body 4 and piston rod 19 promotes piston rod 19 and moves backward, pivot 17 and motor seat 20 moved together backward during piston rod 19 drove and rotates, and produced the riveted joint function.End cap 25 on motor seat 20 moves to bonnet 24 places, as can be seen from Figure 5, just in time open inlet channel B27, make and form a baric area 36 between distributor 28 and the end cap 25, the gas because air leakage hole 26 overflows, make air pressure decline among the inlet channel B27, air pressure decline in the pressure channel 8 also has a very little air leakage hole 38 in the reversal valve 7 on valve piston 37, under action of pressure, impel valve piston 37 to move up, air supply pipe 3 is cut off with inlet channel A30, gas is with the outside exhaust in the hole in the silencer 39 in the while air supply pipe 3, staking power is disappeared, and under the effect of spring 16, piston rod 19 moves forward, and promotes rifle head 13 and resets.Under the pressure effect of baric area 36, promote distributor 28 and move forward for motor seat 20 when resetting, the gas passage 31 that will reverse is connected with inlet channel A30, makes blower motor 33 counter-rotatings, and rifle head 13 is withdrawed from from nut.At last, the effect by continuous qi of chong channel ascending adversely and air leakage hole 26 in the baric area 32 makes distributor 28 move backward with respect to motor seat 20, and baric area 36 is disappeared, and distributor 28 returns to the state before using.Wherein the throughput sum of the inlet channel 37 of the throughput of air leakage hole 26 and air pressure 32 must just can make distributor move forward in the riveted joint process less than the air inflow of inlet channel B27.

Claims (3)

1. a Nut riveter is made up of pivot (17), switch (10), spring (16), distributor (28), piston rod (19) and end cap (25) part in rifle body (4), cylinder piston (2), rifle head (13), blower motor (33), the rotation, cylinder piston (2) is sleeved on the bottom of rifle body (4), oil cylinder piston (5) one ends are sleeved in the rifle body (4) by cylinder cover (6), the other end is fixed in the cylinder piston (2), and the bottom of rifle body (4) is fixed with cylinder end piece (1); Piston rod (19) is sleeved in the rifle body (4) by spring (16) and spring clamp nut (5), the bearing (22) that passes through of blower motor (33) is fixed in the motor seat (20), pivot in the rotation (17) is fixed together by the rotor of planet pin (18) with blower motor (33), motor seat (20) is fixed on piston rod (19) by being threaded, and pivot (17) is sleeved in the piston rod (19) in will rotating, and rifle head (13) is fixed on the pivot in the rotation (17) by contiguous block (14); On motor seat (20), there is one just changeing gas passage (29) and a counter-rotating gas passage (31) respectively, at the center of blower motor (33) push rod (21) is arranged, push rod (21) one ends withstand in the pivot in the rotation (17), the other end withstands on a spheroid (23), spheroid (23) just in time gets lodged in just to be changeed in the gas passage (29), rear end at motor seat (20) is set with a distributor (28) by end cap (25), an inlet channel (A30) is arranged in the distributor (28), switch (10) is housed on rifle body (4), a pressure channel (8) is arranged on the rifle body (4), starting handle (9) on the switch (10) is just in time blocked pressure channel (8), pressure channel (8) communicates with gas circuit in the reversal valve (7), air supply pipe (3) and silencer (39) are housed on the reversal valve (7), it is characterized in that: another inlet channel (B27) is arranged on distributor (28), described inlet channel (B27) communicates with pressure channel (8), and an air leakage hole (26) is arranged on described end cap (25).

2. Nut riveter according to claim 1, it is characterized in that: between distributor (28) and motor seat (20), form a baric area (32), have an inlet channel (37) to link to each other with inlet channel (A30) on the baric area (32), the throughput sum of the throughput of inlet channel (37) and end cap (25) air leakage hole (26) must be less than the air inflow of inlet channel (B27).

3. Nut riveter according to claim 1, it is characterized in that: a valve piston (37) is arranged in described reversal valve (7), an air leakage hole (38) is arranged on the valve piston (37), and plane, G place is greater than plane, H place in the plane that valve piston (37) is gone up with gas contacts.

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