CN103522133B - A kind of air spring necking machine - Google Patents
A kind of air spring necking machine Download PDFInfo
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- CN103522133B CN103522133B CN201310473751.0A CN201310473751A CN103522133B CN 103522133 B CN103522133 B CN 103522133B CN 201310473751 A CN201310473751 A CN 201310473751A CN 103522133 B CN103522133 B CN 103522133B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
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Abstract
The invention provides a kind of air spring necking machine, belong to field of mechanical technique.The technical problem such as when it solving existing air spring steel pipe throat end crimp is large.This necking machine comprises frame, and frame comprises top board and base plate, and top board is connected by gripper shoe mutually with base plate; Top board is installed with working plate, working plate is installed with guide rail, slide on rails is connected with slide block, slide block is provided with a reducing wheel, working plate is also installed with for the drive unit one of movable slider along the movement of rail length direction; Necking machine also comprises pneumatic chuck, and pneumatic chuck comprises cylinder body, is plugged with hollow shaft in cylinder body, is inserted with jaw in hollow shaft, gripper shoe is installed with the drive unit two for driving hollow shaft to rotate; The adjusting device for regulating steel pipe position height is also provided with immediately below pneumatic chuck.The present invention is when carrying out reducing to steel tube end part, and the crimp of steel tube end part is little, and applicable different reducing dimensional requirement.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of air spring necking machine.
Background technology
Air spring is a kind of industry accessories with support, buffering, braking, the highly function such as adjustment and angular adjustment, according to the difference in its Speciality and application field.Free style air spring, self-locking air spring, traction air spring can be divided into according to the 26S Proteasome Structure and Function of air spring, arbitrarily stop the supple of gas or steam spring etc.Air spring of the prior art generally includes control element in steel pipe, piston rod, piston, seal guide sleeve, filler, cylinder, cylinder outer control element and joint etc.In the process of air spring, need to carry out reducing to steel pipe.
Steel pipe throat of the prior art adopts overall die cavity extruded usually, great circle is shortened into the circle of path, and when large and small circular diameter difference is larger, steel tube extrusion distortion is large, and workpiece is difficult to reach forming requirements.
Summary of the invention
The present invention be directed to the problems referred to above that existing technology exists, provide a kind of air spring necking machine, technical problem to be solved by this invention is: the while of how making air spring steel tube end part meet reducing, and its crimp produced is little again.
Object of the present invention realizes by following technical proposal:
A kind of air spring necking machine, described air spring comprises a steel pipe, it is characterized in that, described necking machine comprises frame, and described frame comprises the top board and base plate that arrange in the horizontal direction, and described top board is connected by several gripper shoes mutually with base plate; Described top board is installed with a working plate, described working plate is installed with a strip guide rail arranged in the horizontal direction, described strip slide on rails is connected with a slide block, described slide block being provided with one for grinding the reducing wheel of described port of steel pipe, described working plate being also installed with for driving described slide block along the drive unit one of rail length direction movement; Described necking machine also comprises a pneumatic chuck, described pneumatic chuck comprises a cylinder body, a hollow shaft vertically arranged is plugged with in described cylinder body, being inserted with several in described hollow shaft for clamping the jaw of described steel pipe, described gripper shoe being installed with the drive unit two for driving described hollow shaft to rotate; The adjusting device for regulating described steel pipe position height is also provided with immediately below described pneumatic chuck.
Its operation principle is as follows: be first positioned in jaw by air spring steel pipe, and the size of reducing is wanted according to steel tube place, the position height of steel pipe is regulated by adjusting device, then by jaw by steel tube clamping, then drive hollow shaft to rotate by drive unit two, thus drive the steel pipe in jaw to rotate, then the size of reducing is wanted according to steel tube place, drive slide block movement by drive unit one, reducing is taken turns and contacts with the steel pipe rotated, the end of steel pipe is ground.In the present invention, the size of reducing can be wanted according to steel tube place, by regulating the position of reducing wheel and steel pipe, correspondingly can regulate the size of steel pipe throat, compared with prior art, the grinding taken turns by reducing in the present invention realizes the reducing of steel pipe, in reducing process, the end not easily production deformation of steel pipe, thus the service life of improving steel pipe; And automaticity of the present invention is high, the labour intensity of operator can be reduced; In addition, the scope that the necking machine in the present invention is adjustable is large, and versatility is good, can be used for the steel pipe processing needles of various sizes.
In above-mentioned a kind of air spring necking machine, as a kind of scheme, described drive unit one comprises cylinder mounting plate and cylinder, described cylinder mounting plate is fixed on described working plate, described cylinder comprises cylinder barrel and piston rod, described cylinder barrel is fixed on described cylinder mounting plate, and the inner of described piston rod is plugged in described cylinder barrel, and the outer end of described piston rod is connected with described slide block.When needing the position of adjusting slider and reducing wheel, promote slide block by cylinder, thus regulate the position of reducing wheel, control the diameter of steel tube end part, regulate the size of air spring reducing.
In above-mentioned a kind of air spring necking machine, described slide block comprises a rectangular-shaped pedestal, the inner of described pedestal offers bolt hole, and the outer end of described piston rod offers the through hole one corresponding with described bolt hole, and described through hole one is connected by a screw flight with bolt hole, the outer end of described pedestal is fixed with a holder, described holder comprises the upper clip and lower clamping piece that are superimposed with each other, the inner of described upper clip and the inner of lower clamping piece are all connected as a single entity with the outer end of described pedestal, a jaws is formed between described upper clip and lower clamping piece, described upper clip and lower clamping piece offer through hole two and through hole three respectively, described holder also comprises a little axle, the two ends of described little axle are plugged in described through hole two and through hole three respectively, described little axle is also arranged with two conical bearings, described reducing wheel is positioned at described jaws and is sheathed on described conical bearing.Piston rod is connected with pedestal by screw rod, and later stage detachable maintaining is convenient; Holder is designed to the upper clip that is superimposed and lower clamping piece, facilitates the placement of the parts such as reducing wheel; Reducing wheel is rotatably assorted by conical bearing and little axle, and when steel pipe rotates, reducing wheel carries out grinding to steel tube end part and realizes reducing.
In above-mentioned a kind of air spring necking machine, the lower face of described top board is fixed with a unit head lathe bed, described hollow shaft is through described unit head lathe bed, and described hollow shaft is also provided with a belt pulley, described drive unit two comprises a motor be fixed in described gripper shoe, the output of described motor is connected with described belt pulley by a belt, the lower surface of described belt pulley is fixed with a connecting plate, the upper end of described cylinder body is connected with described connecting plate by plane bearing, air inlet one is also provided with in described cylinder body, air inlet two, piston and pull bar, described pull bar is connected mutually with described jaw, described piston is connected mutually with described pull bar, when inflating in described air inlet one, described piston can move downward and drive pull bar synchronously to move downward, thus jaw is tightened clamp steel pipe, when inflating in described air inlet two, described piston can move upward and drive described jaw synchronously to move upward, thus makes jaw open release steel pipe.
In above-mentioned a kind of air spring necking machine, described cylinder, motor and pneumatic chuck are controlled by a control circuit, comprise motor M and three phase mains, it is characterized in that, described motor M is connected three phase mains by contactor C1 with contactor C2, and described contactor C1 and contactor C2 interlocks.After the present invention is designed with above-mentioned control circuit, self-actuating brake can be realized after reducing process completes, namely automatically stop electric machine rotation; Avoid operative employee to go to take out workpiece before equipment does not stop completely, ensure operative employee's safety; Cancel the mechanical brake parts of cylinder Pipe End Throat Machine, realize brake by motor reversal, reduce the mechanical wear of equipment; Ensure that reducing terminates rear motor and stops, to reduce the fraction defective of workpiece product; Timely self-actuating brake, reduces stand-by period when taking out workpiece, improves operating efficiency.
In above-mentioned a kind of air spring necking machine, described contactor C1 is connected by three-phase power line U/V/W input corresponding to motor M, and contactor C2 is connected by three-phase power line W/V/U input corresponding to motor M.
In above-mentioned a kind of air spring necking machine, described three phase mains is connected with breaker, for the protection of motor.
In above-mentioned a kind of air spring necking machine, also comprise in described contactor C1 and contactor C2 interlock circuit: time relay JC1, time relay JC2, solenoid directional control valve D, stacked switch HK, start button AN and scram button TN, described start button AN, scram button TN, contactor C2 normally-closed contact, time contactor JC1 normally-closed contact and contactor C1 coils connected in series form the first series loop, described contactor C1 normally opened contact is parallel to start button AN two ends, described time relay JC1 coils from parallel connection of coils is in the two ends of time relay JC1 normally-closed contact and contactor C1 series circuit, described solenoid directional control valve D is parallel to the two ends of time relay JC1 coil, described time relay JC1 normally opened contact, contactor C1 normally-closed contact, time relay JC2 normally-closed contact and contactor C2 coils connected in series form the second series loop, described contactor C2 normally open contact is parallel to time relay JC1 normally open contact two ends, and described time relay JC2 coils from parallel connection of coils is in the two ends of time relay JC2 normally-closed contact and contactor C2 series circuit, the circuit two ends formed after connecting with stacked switch HK after described first series loop and the second series loop are connected in parallel are connected with two live wires respectively.
In above-mentioned a kind of air spring necking machine, alternatively, described adjusting device comprises an oil cylinder be fixed on described base plate, described oil cylinder is positioned at immediately below described hollow shaft, and when described penstock installation is in described jaw, the piston rod of described oil cylinder can lean with described steel pipe.
Compared with prior art, the present invention has the following advantages:
1, in the present invention, the size of reducing can be wanted according to steel tube place, by regulating the position of reducing wheel and steel pipe, correspondingly can regulate the size of steel pipe throat, compared with prior art, the grinding taken turns by reducing in the present invention realizes the reducing of steel pipe, in reducing process, the end not easily production deformation of steel pipe, thus the service life of improving steel pipe;
2 and automaticity of the present invention is high, the labour intensity of operator can be reduced; In addition, the scope that the necking machine in the present invention is adjustable is large, and versatility is good, can be used for the steel pipe processing needles of various sizes;
3, after the present invention is designed with above-mentioned control circuit, self-actuating brake can be realized after reducing process completes, namely automatically stop electric machine rotation; Avoid operative employee to go to take out workpiece before equipment does not stop completely, ensure operative employee's safety; Cancel the mechanical brake parts of cylinder Pipe End Throat Machine, realize brake by motor reversal, reduce the mechanical wear of equipment; Ensure that reducing terminates rear motor and stops, to reduce the fraction defective of workpiece product; Timely self-actuating brake, reduces stand-by period when taking out workpiece, improves operating efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of this necking machine in embodiment.
Fig. 2 is the structural representation of this pneumatic chuck in embodiment.
Fig. 3 is this motor section parallel circuit schematic diagram in embodiment.
Fig. 4 is the schematic diagram of this contactor interlocking circuit in embodiment.
Fig. 5 is this cylinder Pipe End Throat Machine pneumatic control schematic diagram in embodiment.
In figure, 1, steel pipe; 2, frame; 3, top board; 4, base plate; 5, gripper shoe; 6, working plate; 7, guide rail; 8, slide block; 9, reducing wheel; 10, drive unit one; 11, pneumatic chuck; 12, cylinder body; 13, hollow shaft; 14, jaw; 15, drive unit two; 16, adjusting device; 17, cylinder mounting plate; 18, cylinder; 19, piston rod; 20, pedestal; 21, screw rod; 22, upper clip; 23, lower clamping piece; 24, little axle; 25, conical bearing; 26, unit head lathe bed; 27, belt pulley; 28, motor; 29, connecting plate; 30, plane bearing; 31, air inlet one; 32, air inlet two; 33, piston; 34, pull bar; 35, choke valve.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figure 1 and Figure 2, air spring comprises a steel pipe 1, and necking machine comprises frame 2, and frame 2 comprises the top board 3 and base plate 4 that arrange in the horizontal direction, and top board 3 is connected by several gripper shoes 5 mutually with base plate 4; Top board 3 is installed with a working plate 6, working plate 6 is installed with a strip guide rail 7 arranged in the horizontal direction, strip guide rail 7 slidably connects a slide block 8, slide block 8 being provided with one for grinding the reducing wheel 9 of steel pipe 1 port, working plate 6 being also installed with for the drive unit one 10 of movable slider 8 along the movement of guide rail 7 length direction; In the present embodiment, drive unit 1 comprises cylinder mounting plate 17 and cylinder 18, cylinder mounting plate 17 is fixed on working plate 6, cylinder 18 comprises cylinder barrel and piston rod 19, cylinder barrel is fixed on cylinder mounting plate 17, the inner of piston rod 19 is plugged in cylinder barrel, and the outer end of piston rod 19 is connected with slide block 8.Specifically, slide block 8 comprises a rectangular-shaped pedestal 20, and the inner of pedestal 20 offers bolt hole, and the outer end of piston 33 bar 19 offers the through hole one corresponding with bolt hole, and through hole one is threaded by a screw rod 21 with bolt hole; The outer end of pedestal 20 is fixed with a holder, holder comprises the upper clip 22 and lower clamping piece 23 that are superimposed with each other, the inner of upper clip 22 and the inner of lower clamping piece 23 are all connected as a single entity with the outer end of pedestal 20, a jaws is formed between upper clip 22 and lower clamping piece 23, upper clip 22 and lower clamping piece 23 offer through hole two and through hole three respectively, holder also comprises a little axle 24, the two ends of little axle 24 are plugged in through hole two and through hole three respectively, little axle 24 is also arranged with two conical bearings 25, reducing wheel 9 is positioned at jaws and is sheathed on conical bearing 25.The outer surface of reducing wheel 9 has a tungsten carbide coating.As other scheme, drive unit one also drives slide block to move by screw mandrel with coordinating of nut.
As shown in Figure 1 and Figure 2, necking machine also comprises a pneumatic chuck 11, pneumatic chuck 11 comprises a cylinder body 12, a hollow shaft vertically arranged 13 is plugged with in cylinder body 12, being inserted with several in hollow shaft 13 for clamping the jaw 14 of steel pipe 1, gripper shoe 5 being installed with the drive unit 2 15 for driving hollow shaft 13 to rotate; Specifically, the lower face of top board 3 is fixed with a unit head lathe bed 26, hollow shaft 13 is through unit head lathe bed 26, and hollow shaft 13 is also provided with a belt pulley 27, drive unit 2 15 comprises a motor 28 be fixed in gripper shoe 5, and the output of motor 28 is connected with belt pulley 27 by a belt; As other scheme, drive unit two also can adopt motor to drive hollow shaft 13 to rotate with coordinating of driving gear set.As preferably, the lower surface of belt pulley 27 is also fixed with a connecting plate 29, the upper end of cylinder body 12 is connected with connecting plate 29 by plane bearing 30, air inlet 1, air inlet 2 32, piston 33 and pull bar 34 is also provided with in cylinder body 12, pull bar 34 is connected mutually with jaw 14, and piston 33 is connected mutually with pull bar 34; When inflating in air inlet 1, piston 33 can move downward and drive pull bar 34 synchronously to move downward, thus jaw 14 is tightened clamp steel pipe 1; When inflating in air inlet 2 32, piston 33 can move upward and drive jaw 14 synchronously to move upward, thus makes jaw 14 open release steel pipe 1.
As shown in Figure 1 and Figure 2, the adjusting device 16 for regulating steel pipe 1 position height is also provided with immediately below pneumatic chuck 11.In the present embodiment, adjusting device 16 comprises screw mandrel and nut, and screw mandrel vertically arranges and can lean with steel pipe, and nut screw is connected on screw mandrel, and screw mandrel moves upward and steel pipe upwards can be pushed up thus regulate the upper-lower position of steel pipe when the nut rotates; In addition, screw mandrel also can be adopted to rotate and drive nut vertically to move thus the scheme driving steel pipe upwards to push up, such scheme is comparatively ripe, and becomes the use in lathe comparatively frequent, and not in this to go forth.As other scheme, adjusting device 16 comprises an oil cylinder be fixed on base plate 4, and oil cylinder is positioned at immediately below hollow shaft 13, and when steel pipe 1 is installed in jaw 14, the piston rod of oil cylinder can lean with steel pipe 1.
Its operation principle is as follows: be first positioned in jaw by air spring steel pipe, and the size of reducing is wanted according to steel tube place, the position height of steel pipe is regulated by adjusting device, then by jaw by steel tube clamping, then drive hollow shaft to rotate by drive unit two, thus drive the steel pipe in jaw to rotate, then the size of reducing is wanted according to steel tube place, drive slide block movement by drive unit one, reducing is taken turns and contacts with the steel pipe rotated, the end of steel pipe is ground.In the present invention, the size of reducing can be wanted according to steel tube place, by regulating the position of reducing wheel and steel pipe, correspondingly can regulate the size of steel pipe throat, compared with prior art, the grinding taken turns by reducing in the present invention realizes the reducing of steel pipe, in reducing process, the end not easily production deformation of steel pipe, thus the service life of improving steel pipe; And automaticity of the present invention is high, the labour intensity of operator can be reduced; In addition, the scope that the necking machine in the present invention is adjustable is large, and versatility is good, can be used for the steel pipe processing needles of various sizes.
As shown in Fig. 3, Fig. 4, Fig. 5, cylinder 18, motor 28 and pneumatic chuck 11 is controlled by a control circuit, comprises motor M and three phase mains, and motor M is connected three phase mains by contactor C1 with contactor C2, and contactor C1 and contactor C2 interlocks.
Contactor C1 is connected by three-phase power line U/V/W input corresponding to motor M, and contactor C2 is connected by three-phase power line W/V/U input corresponding to motor M.Three phase mains is connected with breaker, and for the protection of motor, once electric current is excessive in circuit, breaker will deenergization, causes open circuit.
As shown in Figure 4, also comprise in contactor C1 and contactor C2 interlock circuit: time relay JC1, time relay JC2, solenoid directional control valve D, stacked switch HK, start button AN and scram button TN, described start button AN, scram button TN, contactor C2 normally-closed contact, time contactor JC1 normally-closed contact and contactor C1 coils connected in series form the first series loop, contactor C1 normally opened contact is parallel to start button AN two ends, time relay JC1 coils from parallel connection of coils is in the two ends of time relay JC1 normally-closed contact and contactor C1 series circuit, solenoid directional control valve D is parallel to the two ends of time relay JC1 coil, time relay JC1 normally opened contact, contactor C1 normally-closed contact, time relay JC2 normally-closed contact and contactor C2 coils connected in series form the second series loop, contactor C2 normally open contact is parallel to time relay JC1 normally open contact two ends, and time relay JC2 coils from parallel connection of coils is in the two ends of time relay JC2 normally-closed contact and contactor C2 series circuit, the circuit two ends formed after connecting with stacked switch HK after first series loop and the second series loop are connected in parallel are connected with two live wires respectively.
Its operation principle is as follows:
1. as shown in Figure 4, press and start button AN, time relay JC1 obtains electric, starts working; Solenoid directional control valve D obtains electric commutation, pneumatic chuck 11 clamping work pieces; Cylinder piston is extrapolated, and in figure, choke valve 35 is in order to the outside speed to introduce of regulating piston; Contactor C1 obtains electric, and motor M is rotated.
2. as shown in Fig. 4 Fig. 5, time relay JC1 time delay terminates rear dead electricity, and solenoid directional control valve D dead electricity resets, and pneumatic chuck 11 unclamps workpiece, cylinder piston Rapid reset; Time relay JC2 obtains electric simultaneously, starts working; Contactor C2 obtains electric, and motor starts brake; Time relay JC2 time delay terminates, contactor C2 dead electricity, motor stalls.
3. as shown in Fig. 4 Fig. 5, in reducing process, press emergency stop switch TN, solenoid directional control valve D dead electricity resets, and pneumatic chuck 11 unclamps workpiece, cylinder piston Rapid reset; Time relay JC2 obtains electric simultaneously, starts working; Contactor C2 obtains electric, and motor starts brake; Time relay JC2 time delay terminates, contactor C2 dead electricity, motor stalls.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (9)
1. an air spring necking machine, described air spring comprises a steel pipe (1), it is characterized in that, described necking machine comprises frame (2), described frame (2) comprises the top board (3) and base plate (4) that arrange in the horizontal direction, and described top board (3) is connected by several gripper shoes (5) mutually with base plate (4); Described top board (3) is installed with a working plate (6), described working plate (6) is installed with a strip guide rail (7) arranged in the horizontal direction, described strip guide rail (7) slidably connects a slide block (8), described slide block (8) being provided with one for grinding reducing wheel (9) of described steel pipe (1) port, described working plate (6) being also installed with for driving described slide block (8) along the drive unit one (10) of guide rail (7) length direction movement; Described necking machine also comprises a pneumatic chuck (11), described pneumatic chuck (11) comprises a cylinder body (12), a hollow shaft vertically arranged (13) is plugged with in described cylinder body (12), being inserted with several in described hollow shaft (13) for clamping the jaw (14) of described steel pipe (1), described gripper shoe (5) being installed with the drive unit two (15) for driving described hollow shaft (13) to rotate; The adjusting device (16) for regulating described steel pipe (1) position height is also provided with immediately below described pneumatic chuck (11).
2. air spring necking machine according to claim 1, it is characterized in that, described drive unit one (10) comprises cylinder mounting plate (17) and cylinder (18), described cylinder mounting plate (17) is fixed on described working plate (6), described cylinder (18) comprises cylinder barrel and piston rod (19), described cylinder barrel is fixed on described cylinder (18) installing plate (17), the inner of described piston rod (19) is plugged in described cylinder barrel, and the outer end of described piston rod (19) is connected with described slide block (8).
3. air spring necking machine according to claim 2, it is characterized in that, described slide block (8) comprises a rectangular-shaped pedestal (20), the inner of described pedestal (20) offers bolt hole, the outer end of described piston rod (19) offers the through hole one corresponding with described bolt hole, and described through hole one is threaded by a screw rod (21) with bolt hole, the outer end of described pedestal (20) is fixed with a holder, described holder comprises the upper clip (22) and lower clamping piece (23) that are superimposed with each other, the inner of described upper clip (22) and the inner of lower clamping piece (23) are all connected as a single entity with the outer end of described pedestal (20), a jaws is formed between described upper clip (22) and lower clamping piece (23), described upper clip (22) and lower clamping piece (23) offer through hole two and through hole three respectively, described holder also comprises a little axle (24), the two ends of described little axle (24) are plugged in described through hole two and through hole three respectively, described little axle (24) is also arranged with two conical bearings (25), described reducing wheel (9) is positioned at described jaws and is sheathed on described conical bearing (25).
4. air spring necking machine according to claim 3, it is characterized in that, the lower face of described top board (3) is fixed with a unit head lathe bed (26), described hollow shaft (13) is through described unit head lathe bed (26), and described hollow shaft (13) is also provided with a belt pulley (27), described drive unit two (15) comprises a motor (28) be fixed in described gripper shoe (5), the output of described motor (28) is connected with described belt pulley (27) by a belt, the lower surface of described belt pulley (27) is fixed with a connecting plate (29), the upper end of described cylinder body (12) is connected with described connecting plate (29) by plane bearing (30), air inlet one (31) is also provided with in described cylinder body (12), air inlet two (32), piston (33) and pull bar (34), described pull bar (34) is connected mutually with described jaw (14), described piston (33) is connected mutually with described pull bar (34), when in described air inlet one (31) during inflation, described piston (33) can move downward and drive pull bar (34) synchronously to move downward, thus jaw (14) is tightened clamp steel pipe (1), when inflating in described air inlet two (32), described piston (33) can move upward and drive described jaw (14) synchronously to move upward, thus makes jaw (14) open release steel pipe (1).
5. air spring necking machine according to claim 4, it is characterized in that, described adjusting device (16) comprises an oil cylinder be fixed on described base plate (4), described oil cylinder is positioned at immediately below described hollow shaft (13), and when described steel pipe (1) is installed in described jaw (14), the piston rod of described oil cylinder can lean with described steel pipe (1).
6. air spring necking machine according to claim 5, it is characterized in that, described cylinder (18), motor (28) and pneumatic chuck (11) are controlled by a control circuit, control circuit comprises motor M and three phase mains, described motor M is connected three phase mains by contactor C1 with contactor C2, and described contactor C1 and contactor C2 interlocks.
7. air spring necking machine according to claim 6, is characterized in that, described contactor C1 is connected by three-phase power line U/V/W input corresponding to motor M, and contactor C2 is connected by three-phase power line W/V/U input corresponding to motor M.
8. air spring necking machine according to claim 7, is characterized in that, described three phase mains is connected with breaker, for the protection of motor (28).
9. air spring necking machine according to claim 8, it is characterized in that, also comprise in described contactor C1 and contactor C2 interlock circuit: time relay JC1, time relay JC2, solenoid directional control valve D, stacked switch HK, start button AN and scram button TN, described start button AN, scram button TN, contactor C2 normally-closed contact, time contactor JC1 normally-closed contact and contactor C1 coils connected in series form the first series loop, described contactor C1 normally opened contact is parallel to start button AN two ends, described time relay JC1 coils from parallel connection of coils is in the two ends of time relay JC1 normally-closed contact and contactor C1 series circuit, described solenoid directional control valve D is parallel to the two ends of time relay JC1 coil, described time relay JC1 normally opened contact, contactor C1 normally-closed contact, time relay JC2 normally-closed contact and contactor C2 coils connected in series form the second series loop, described contactor C2 normally open contact is parallel to time relay JC1 normally open contact two ends, and described time relay JC2 coils from parallel connection of coils is in the two ends of time relay JC2 normally-closed contact and contactor C2 series circuit, the circuit two ends formed after connecting with stacked switch HK after described first series loop and the second series loop are connected in parallel are connected with two live wires respectively.
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SU1683844A1 (en) * | 1988-12-28 | 1991-10-15 | Краматорский Научно-Исследовательский И Проектно-Технологический Институт Машиностроения | Rolling-out machine |
EP1053799A2 (en) * | 1999-05-10 | 2000-11-22 | Sango Co., Ltd. | Method and apparatus for forming a processed portion of a workpiece |
CN2451262Y (en) * | 2000-10-01 | 2001-10-03 | 姜堰市石油化工机械厂 | Necking machine |
CN2537494Y (en) * | 2002-03-21 | 2003-02-26 | 江阴市冶金液压机械厂 | Hydraulic screw pressing closing machine |
CN2688410Y (en) * | 2003-11-25 | 2005-03-30 | 华南理工大学 | Vertical diameter spinning machine tool |
CN201625736U (en) * | 2010-02-09 | 2010-11-10 | 宁波市北仑华森制冷设备有限公司 | Full-automatic NC necking machine |
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