CN2822887Y

CN2822887Y - Automatic riveter for reveting screw nut

Info

Publication number: CN2822887Y
Application number: CN 200520075322
Authority: CN
Inventors: 王荣林
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-06
Filing date: 2005-09-06
Publication date: 2006-10-04
Anticipated expiration: 2015-09-06

Abstract

The utility model relates to an automatic nut riveter which is composed of a riveter body, a riveter head, a pneumatic motor, a distributor, a switch, an air pressure system and an oil pressure system, wherein the riveter head is connected with a rotor of the pneumatic motor, and the distributor on which two air inlet passages are formed is sheathed on a motor seat. When the utility model is used, the oil pressure system acts on the riveter head to rivet a workpiece, and an air pressure region is formed between an end cover and the distributor. Due to the action of air overflow holes in the air pressure region, the oil pressure system is cut off; under the action of the air pressure region, the distributor is moved forward to open a reversal air passage so as to enable the pneumatic motor to rotate reversely, and then, the riveter head is retreated from the workpiece; therefore, the utility model realizes the functions of automatic riveting, reverse rotation and restoration.

Description

Automatic Nut riveter

Technical field: the utility model relates to a kind of pneumatic tool, particularly relates to a kind of pneumatic tool of automatic Nut riveter.

Technical background: at present, on the market all be pneumatic tool at home, two jettrons arranged on this instrument from German import with the pneumatic tool of the direct riveting of nut on workpiece, 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 rifle is simple in structure, the workpeople 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.

Summary of the invention: the purpose of this utility model will provide a kind of automatic Nut riveter exactly, 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 comes to this and realizes, automatically 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 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 is enclosed within the rifle body by spring and spring clamp nut, 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 get through another inlet channel B on the distributor, make between distributor and the end cap and produce the baric area, reversal valve is because the effect decline of air leakage hole on the one hand, impel valve reset in the reversal valve, moving before the effect lower piston rod drive rotation maincenter of spring is axial resets; 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 motor 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 is pulled disposable automatic riveting, counter-rotating and the reset function finished behind the switch, and easy and simple to handle, safety, staking speed are fast, have improved operating efficiency.

Description of drawings: Fig. 1 is the structural representation of the automatic Nut riveter of the utility model.

Fig. 2 is the D-D cutaway view of automatic Nut riveter shown in Figure 1.

Fig. 3 is the E-E cutaway view of automatic Nut riveter shown in Figure 1.

Fig. 4 is the F-F cutaway view of automatic Nut riveter shown in Figure 1

Partial sectional view when Fig. 5 is the work of automatic Nut riveter.

1. cylinder end piece, 2. cylinder piston, 3. air supply pipe, 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 pipelines, 12. rifle head capsules, 13. the rifle head, 14. contiguous blocks, 15. spring clamp nuts, 16. spring, pivot in 17. rotations, 18. planet pins, 19. piston rod, 20. motor seats, 21. push rods, 22. bearing, 23. balls, 24. bonnets, 25. end cap, 26. air leakage holes, 27. inlet channel B, 28. distributor, 29. are just changeing the gas passage, 30. inlet channel A, 31. counter-rotating gas passage, 32. baric areas, 33. blower motors, 34. the oil pressure district, 35. air inlets, 36. baric areas, 37. valve piston, 38. air leakage holes, 39. silencers.

The specific embodiment: the utility model is further described below in conjunction with accompanying drawing.

In the drawings, a kind of automatic Nut riveter of the utility model is by rifle body 4, cylinder piston 2, rifle head 13, blower motor 33, pivot 17 in the rotation, switch 10, spring 16, distributor 28, piston rod 19 and end cap 25 parts are formed, 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, the bottom of rifle body 4 is fixed on the cylinder end piece 1, piston rod is sleeved in the rifle body 4 by spring 16 and spring clamp nut 15, blower motor 33 is installed in the motor seat 20 by bearing 22, motor seat 20 is by being threaded on the piston rod 19, and in will rotating in the pivot 17 piston set bars 19, rifle head 13 is fixed in the rotation on the pivot 17 by contiguous block; Blower motor 33 rotors by the rotation in planet pin 18 and the piston rod 19 in pivot 17 be fixed together, on motor seat 20, there is one just changeing gas passage 29 and a counter-rotating gas passage 31, 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 the spheroid 23, spheroid 23 just in time gets lodged in just to be changeed in the gas passage 29, be fixed with end cap in motor seat 20 rear ends and be with a distributor 28, there is an inlet channel A30 just in time to link to each other on the distributor 28 with just commentaries on classics gas passage 29 on the motor seat 20, a baric area 32 is arranged between motor seat 20 and distributor 28, 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.During concrete enforcement, as can be seen from Figure 2, when pulling switch 10, 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, the 1-2 tooth, touch inwards again, promote spheroid 23, open and just change gas passage 29 by pivot 17 in rotating and push rod 21, blower motor 33 is just being changeed to be tightened on nut in the rifle headache 13, pull switch 10 effect then, open pressure channel 8, because pressure channel 8 communicates with inlet channel B27 by starting handle 9.Open inlet channel B27 on the one hand, make inlet channel B27 Zhong Chong Full 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 air supply pipe 3 Zhong Chong Full 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 get through inlet channel B27, make and produce 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 baric area 32 must just can make distributor 28 move forward in the riveted joint process less than the air inflow of inlet channel B27.

Claims

1. an automatic Nut riveter is by rifle body (4), cylinder piston (2), rifle head (13), blower motor (33), pivot in the rotation (17), switch (10), spring (16), distributor (28), piston rod (19) and end cap (25) are formed, cylinder piston (20) 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), the bottom of rifle body (4) is fixed on the cylinder end piece (1), piston rod (19) is sleeved in the rifle body (4) by spring (16) and spring clamp nut (15), blower motor (33) is installed in the motor seat (20) by bearing (22), motor seat (20) is by being threaded on the piston rod (19), 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); Blower motor (33) rotor by the rotation in planet pin (18) and the piston rod (19) in pivot (17) be fixed together, on motor seat (20), there is one just changeing gas passage (29) and a counter-rotating gas passage (31), 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 the spheroid (23), spheroid (23) just in time gets lodged in just to be changeed in the gas passage (29), be fixed with end cap (25) in motor seat (20) rear end and be with a distributor (28), there is an inlet channel (A30) just in time to link to each other on the distributor (28) with just commentaries on classics gas passage (29) on the motor seat (20), between motor seat (20) and distributor (28), a baric area (32) is arranged, 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), described inlet channel (B27) communicates with pressure channel (8), and an air leakage hole (26) is arranged on described end cap (25).

2. automatic 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 air leakage hole (26) on the throughput of inlet channel (37) and the end cap (25) must be less than the air inflow of inlet channel (B27).

3. automatic 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.