CN101116920A

CN101116920A - Hydraulic pressure threading machine

Info

Publication number: CN101116920A
Application number: CNA2007100712326A
Authority: CN
Inventors: 崔良永; 应安义
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-07
Filing date: 2007-09-07
Publication date: 2008-02-06

Abstract

A hydraulic pressure tapping machine consists of a movable case, a rocker support with one end arranged on the case, a tapping device which is arranged on the other end of the rocker support, a hydraulic pressure controlling unit and an electronic control system which are arranged in the case. The invention is characterized in that the tapping device consists of a hydraulic pressure motor, a connection component which is connected between the hydraulic pressure motor and a variable speed planet gear group, the variable speed planet gear group which is connected with the output end of the connection component and a screw tap head which is connected with the output end of the variable speed planet gear group. The invention designs the hydraulic pressure tapping machine, the work torsion of which is ranged from 290 N.m to 320N.m. The pressure output of the hydraulic pressure controlling unit is ranged from 100Kgf to 130Kgf or 10MPa to 13MPa. Because the invention hydraulic pressure tapping machine M20 N.m to 320N.m processes the inner worm quickly, the invention is applicable to the template and parts of machine tool of big workpiece, many taps and bigger size. The invention has the advantages of small volume, light weight and convenient operation.

Description

Hydraulic pressure threading machine

Technical field

The present invention relates to a kind of tapping machine, the particularly a kind of hydraulic pressure threading machine that can process large diameter and inner thread.

Background technology

Existing power machine of attacking internal thread by electronic develop into pneumatic, wherein with pneumatic tapper efficient height, easy to operate, the machining accuracy height, be machined the sophisticated equipment that is called internal thread machining with mould manufacturing industry, but pneumatic tapper, because air motor rotating speed height, torsion is little, even if increase air-capacitor amount or planetary gear speed-changing in process, still can't process large diameter internal thread, process large diameter internal thread, still with the motor source that is used as power, use gear graduation, the horizontal automatic tapping machine of infinitely variable speeds as one kind of CN2686777Y can process M30～M110 * 2 internal threads automatically comprises stepless speed change device, gearbox, main spindle box, main shaft automatic feed mechanism and pneumatic automatic clamping device.Though these parts can be located at above the cabinet or side, but overall combination still occupies very big space, complex structure, operation inconvenience, be difficult to reach requirement on machining accuracy, adopt the above internal thread of pneumatic tapper processing M30, complex process, requirement height, need special skill and experience, make the processing large diameter and inner thread become the special technique work post, and be difficult to control quality standard, processing cost is improved greatly.

Summary of the invention

The present invention is directed to above-mentioned electric threading or there is technical deficiency separately in pneumatic tapping, design and a kind ofly can attack large diameter and inner thread, it is simple and compact for structure to have pneumatic tapper again, and the machining accuracy height is operated light hydraulic pressure threading machine.

Design of the present invention is, hydraulic pressure threading machine, comprise movable case, one end is located at rocker arm support on the cabinet, is located at the chasing bar of the rocker arm support other end, be located at hydraulic control unit and electric-control system in the cabinet, it is characterized in that chasing bar by hydraulic motor, be connected in the coupling assembling between hydraulic motor and the variable speed planetary gear group, the variable speed planetary gear group that is connected to the coupling assembling output is formed with the tap chuck that is connected to variable speed planetary gear group output.

Described hydraulic motor is a cycloid hydraulic motor, constitute the cycloid motion gear train by stator tube and the rotor that is located in the stator tube, by flow divider, be located at the shunting rotating shaft in the flow divider, be located in the shunting rotating shaft, an end is that the armature spindle other end produces axle with the driving cog axle composition power that the shunting shaft gear meshes; The shunting rotating shaft is that to distribute fluid be again power output shaft, and the shunting rotating shaft is connected realization hydraulic pressure and can changes rotary machine into and can export with travelling gear.

Described coupling assembling is by the Connection Block that is used to connect cycloid hydraulic motor and variable speed planetary gear group, be located in the Connection Block inner chamber adapter sleeve with adapter sleeve mutually the gear connecting axle of fit form, circle fit close-fitting in one end of gear connecting axle and the adapter sleeve, the other end is the sun gear shaft of variable speed planetary gear group.

Described hydraulic system comprises hydraulic power unit, fuel tap group and hydraulic supply line road, hydraulic power unit comprises fuel reserve tank, oil pump, motor and cooler, the fuel tap group comprises magnetic valve, valve plate and flow speed control valve, and electrical system comprises transformer, relay panel and Connection Block.

Mobile cabinet comprises iron sheet case, foundry goods work top, universal pulley and fixing feet.

Described tap chuck is made up of quick chuck and screw tap folder tube.Tap chuck has pitch compensation and overload protection safety device automatically.

The present invention designs hydraulic pressure threading machine, work torsion is 290～320N.m, the pressure of hydraulic control unit is output as 100kgf～130kgf or 10MPa～13MPa, utilize that hydraulic pressure threading machine M20 of the present invention～M33 machining internal thread speed is fast, be applicable to the big workpiece of processing, template that tapping is many, size is big and machine tool component, and have little, in light weight, the easy to operate advantage of volume.

Description of drawings

Fig. 1 is a hydraulic pressure threading machine chasing bar general assembly drawing.

Fig. 2 is a hydraulic pressure threading machine cycloid oil motor structure chart, and 2-a is the A-A cutaway view of Fig. 2 among the figure, and 2-b is the B-B cutaway view of Fig. 2, and Fig. 2-c is the C-C cutaway view of Fig. 2.

Fig. 3 connects and the variable-speed motor composition for hydraulic pressure threading machine, and Fig. 3-a is the D-D cutaway view of Fig. 3.

Fig. 4 is the hydraulic system schematic diagram of hydraulic pressure threading machine.

Fig. 5 is the electric-control system schematic diagram of hydraulic pressure threading machine.

Fig. 6 is the oil circuit and the automatically controlled conjunctive path figure of hydraulic pressure threading machine.

The specific embodiment

The chasing bar of hydraulic pressure threading machine comprises cycloid formula hydraulic motor 01 as shown in Figure 1, coupling assembling 02, variable speed planetary gear group 03 and tap chuck 04.

Cycloid formula hydraulic motor comprises turnover fuel tap 4, stator tube 6, rotor 8, flow divider 10, shunting rotating shaft 12 and travelling gear 11 as shown in Figure 2.Between turnover fuel tap 4 and stator tube 6, be provided with oil-feed end plate 5, which is provided with the turnover oilhole is connected with stator tube 6, in the stator tube 6 is rotor 8, establish shunting end plate 7 between stator tube 6, rotor 8 and the flow divider 10, also be provided with the turnover oilhole in the shunting end plate 7, be shunting rotating shaft 12 in the separating valve 10, shunting rotating shaft 12 outer walls are established eight radially distributing groove 18 and two axial oil-outs 19.Turnover fuel tap 4, oil-feed end plate 5, stator tube 6, shunting end plate 7 and flow divider 10 series connection are fixing, are positioned with one heart by external diameter.Each radially connects plane contact sentences the O RunddichtringO and seals, and leaks to prevent liquid oil.Flow divider 10 and shunting rotating shaft 12 are rotatably assorted and are loose fit.Flow divider 10 surface of internal cavity are through cure process, and shunting rotating shaft 12 outer surfaces have oil lamella to reduce rotation friction in the middle of both through Quenching Treatment during work, and the other end of flow divider 10 is connected and fixed by connecting plate 13.Shunting is established driving cog axle 11 in the rotating shaft 12, and an end of driving cog axle 11 is for being located at rotor 8 internal tooth engagement shaft 20, and the other end be that the driving cog axle that meshes with shunting rotating shaft 12 internal tooths is to transmit power.Stator tube 6 inner chambers are pentalpha groove cavities 28, and the rotor 8 that is located in stator tube 6 inner chambers is the circle-arc tooth of four jiaos of symmetries.Cycloid formula hydraulic motor one end promptly passes in and out fuel tap 4 ports and establishes turnover oilhole 1,3 and drain tap 21,2 for advancing oil outlet end.Oil-feed end plate 5 is established 2 through

holes

22,25 that communicate with turnover oilhole 1,3 and is communicated 23,24 with drain tap 21,2 shown in Fig. 2-a on the end plate 5; Shown in Fig. 2-b, also there are two

turnover oilholes

26,27 corresponding on the stator tube 6 with two

turnover oilholes

22,25 on the oil-feed end plate 5.Shown in Fig. 2-c, two the

turnover oilholes

29,31 of shunting on the end plate 7 respectively with stator tube 6 on two

turnover oilholes

26,27 align.The fluid of process shunting end plate 7 enters the oil inlet and

outlet

9,19 of flow divider 10, carries out fluid by shunting rotating shaft 12 and distributes, and it has eight diffluence pass 18 in the shunting rotating shaft 12, and four is one group during work, and fuel-displaced each uses one group with oil-feed.The liquid oil that distributes by shunting rotating shaft 12 enters stator tube 6 internal cavities 28 successively by 5 diffluence pass 30 on the shunting end plate 7, promote the circle-arc tooth rotation of rotor 8 successively, thereby make rotor 8 do continuous cycloid motion, internal gear engagement through travelling gear 11 drives shunting rotating shaft 12 rotation outputting power synchronously, finishes hydraulic pressure and can change into mechanical energy output.If fuel feed hole 1 is just changeing for rotor 8 for fuel-displaced for oil-feed, oil outlet 3, otherwise fuel feed hole 3 is oil-feed, and oil outlet is fuel-displaced, and rotor 8 is counter-rotating.

The front end of shunting rotating shaft 12 is provided with plane bearing 17, establishes the rolling packing ring 15 that fineness reaches minute surface when plane bearing 17 rolls between flow divider 10, to reduce the resistance to rolling of plane bearing 17.The slot leakage that a part of liquid oil that distributes in shunting rotating shaft 12 enters between shunting rotating shaft 12 and the flow divider 10 is come out, flow out from the slit at shunting rotating shaft 12 two, wherein a part of fluid enters drain tap 16 installing space by driving cog axle 11 by plane bearing 17 and flows out from the drain tap 2,21 on the oil-feed valve plate 4, be back to flowline, fluid prolongs bearing service life at lubricating bearings when the plane bearing 17.

Through test, the torsion of the cycloid hydraulic motor of above structure is output as 80.5N.m, and speed is 634/min.Do not reach the torsion that processing M33 internal thread hole need be used, so must just can reach the required torque value of work through the planet speed-change gear train, the cycloid hydraulic motor outputting torsion is 80.5N.m, processing required torsion is more than the 290N.m, the ratio that both differ is 1: 3.6, so the gear ratio of planet speed-change gear train must be worth greater than this: the gear ratio of design one-level planet speed change mechanism is 1: 4, and the design outputting torsion is 290～320N.m, with the internal thread of processing M33.

Hydraulic motor and speed change gear coupling assembling see also accompanying drawing 3, and coupling assembling 02 comprises that Connection Block 32, gear connecting axle 35, adapter sleeve 33, shunting rotating shaft 12 and adapter sleeve embrace circle 44; Connection Block 32 is used to connect cycloid hydraulic motor 01 and variable speed planetary gear group 03, shunting rotating shaft 12 1 ends of hydraulic motor and the tight fit of adapter sleeve 33 internal chamber walls, gear connecting axle 35 1 ends are to overlap with interior the justifying of adapter sleeve 33 close-fittings, in have 4 axial grooves, peripheral for embracing circle 44 with the adapter sleeve of screw 45 lockings, when screw 45 lockings, the interior circle that adapter sleeve is embraced circle 44 can compress the axial groove part that circle in the gear connecting axle 35 puts inwards, shunting rotating shaft 12 connecting bushings 33 and gear connecting axle 35 tighten up thereby the three is linked to each other.Adapter sleeve 33 is connected with the outer ring keyway 27 of shunting rotating shaft 12, and by screw 43 axial restraints, gear connecting axle 35 other ends are the sun gear shaft of planet speed-change gear train in the middle of the axle.

When shunting rotating shaft 12 outputting powers, be connected by the keyway 27 of adapter sleeve 33 with shunting rotating shaft 12, adapter sleeve 33 and gear connecting axle 35 are embraced after compressing of circle 44 be connected by adapter sleeve, power is input to the variable speed planetary gear group to power by the central gear 38 of gear connecting axle 35 1 ends, carry out torsion and change, power is outputed to main shaft 39.

Variable speed planetary gear group 03 is consulted shown in Figure 3, and variable speed planetary gear group 03 comprises the central gear 38 that is located at gear connecting axle 35 1 ends, two planetary gears 41, main shaft 39 and inside engaged gears 37, and pivot pin 43 and bearing 36,40.Central gear 38 is meshed with peripheral two planetary gears 41, the internal tooth engagement of two planetary gears 41 and inside engaged gear 37.Wherein main shaft 39 has two holes to cooperate with pivot pin 42, is used to locate the centre-to-centre spacing of planetary gear 41; The external diameter of inside engaged gear 37 cooperates fixing with Connection Block 32; When 38 runnings of rotor center gear, drive planetary gear 41 and do planetary motion, rotate thereby drive main shaft 39; The rotating speed of hydraulic motor shunting rotating shaft 12 is through behind the planet speed-change, and the rotary torsion of output main shaft 39 increases, and moment of torsion reaches 290～320N.m.

The composition of hydraulic system is referring to Fig. 4, and hydraulic power unit drives the forward or reverse of hydraulic motor.

The model of this machine hydraulic power unit is: JSP-30-2.2-P1-A3-MA-1

The hydraulic pressure end is installed in cabinet inside, and dischargeable capacity 30L wherein should add No. 20 (N32) normal hydraulic oils or antiwear hydraulic oil, and an Oil pump electrical machinery group is installed above the fuel tank, power of motor: 2.2kw, and rotating speed: 1420r/min, the flow of oil pump are per minute 16L.The pressure fuel pump adjustable range is 4～13MPa, and system oil pressure output is made as 10～13MPa.

The fuel tap group, the fuel tap group is made up of flow distribution plate and solenoid directional control valve 52, directly connect into required system by flow distribution plate and oil pump 47, whole fuel tap group can be controlled oil circuit, is again asphalt channel, has compact conformation, little, in light weight, the flexible configuration of volume, installation, maintenance is convenient, reduce the leakage between the path, the pressure loss is little, improves the characteristics of system effectiveness and stability.

Hydraulic supply line road, this machine hydraulic supply line road be with fuel tank, fuel tap group, hydraulic motor 01 and cooling system 48 usefulness high pressure oil resistant rubber flexible pipes couple together overall, to realize the power conversion and the energy transmission of hydraulic system.

Please refer to Fig. 5～6, the circuit of whole electric-control system mainly contains connection and controls hydraulic power unit, solenoid directional control valve 52, hydraulic control unit comprises motor 50, oil pump 47, flow speed control valve 46 and solenoid directional control valve 52, solenoid directional control valve 52 is connected in series with flow speed control valve 46, solenoid directional control valve 52 is connected with oil pump 47, flow speed control valve 46 inserts the front end of hydraulic motor 01, turnover oilhole 1,3, and electrical system 51 inserts the control end SJ1 of solenoid directional control valve 52.Cooling system comprises cooler 48 and cooling fan FS1, the FS2 that cools off hydraulic oil.

Cooling system is in time worked behind opening power master switch KM, the turn round oily benign environment temperature of timely cooling device of fan FS1, FS2.

After opening the motor 50 power switch FR of hydraulic power unit, motor 50 running at once, oil-feed pump 47 provides power, impels oil pump 47 hydraulic oil to be provided in time for hydraulic motor 01.

The control of solenoid directional control valve 52 is controlled by relay, the control of relay is by control button 53 manual operations, both direction all by one independently relay control or close, two relays have the control button 53 of a forward or reverse to control its work respectively, button is crawl control, when not exerting pressure to control button, corresponding relays can not worked.Rotate and reverse two buttons on the control button, need to do the spinning movement of which kind of direction, get final product by corresponding button.

Flow speed control valve 46 needs manual the adjusting, and the adjusting handle is housed above, and handle is regulated in rotation can realize the flow size adjustment, and regulating handle clockwise is enlargement discharge, regulates handle counterclockwise for reducing flow.

See also Fig. 4～6, electrical system 51 1 ends are connected with solenoid directional control valve 52, and the other end is connected with control button 53, have wherein comprised the process and the control circuit that are converted to the hydraulic motor running by electric energy.After outside three phase mains enters electrical system, power supply through electrical system transforms, wherein one road power supply has been supplied with Oil pump electrical machinery 50, driven by motor oil pump 47 running back hydraulic oil can be supplied to hydraulic motor 01 to rotate to be up to 13MPa pressure, middle through solenoid directional control valve 52 and flow speed control valve 46, realize the conversion of rotation direction and the adjusting of running speed.Solenoid directional control valve 52 act as conversion oil circuit fuel feeding direction, and hydraulic motor 01 oil-in has 1,3 two, and when solenoid directional control valve act as 1 when the oil-in, 3 be oil-out, and direction of rotation at this moment is clockwise; When solenoid directional control valve act as 3 when the oil-in, 1 be oil-out, and direction of rotation at this moment is counterclockwise.The effect of flow speed control valve is that control enters the hydraulic fluid flow rate of motor, no matter 1,3 two which act as oil-in, can use corresponding flow speed control valve 46 to regulate, flow is big more, rotating speed is fast more, flow is more little, rotating speed is slow more.

Claims

1. hydraulic pressure threading machine, comprise movable case, one end is located at rocker arm support on the cabinet, is located at the chasing bar of the rocker arm support other end, be located at hydraulic control unit and electric-control system in the cabinet, it is characterized in that chasing bar is by hydraulic motor, be connected in the coupling assembling between hydraulic motor and the variable speed planetary gear group, the variable speed planetary gear group that is connected to the coupling assembling output is formed with the tap chuck that is connected to variable speed planetary gear group output.

2. hydraulic pressure threading machine according to claim 1 is characterized in that hydraulic motor is cycloid hydraulic motor (01), constitutes the cycloid motion gear train by stator tube (6) and the rotor (8) that is located in the stator tube (6); By flow divider (10) be located at shunting rotating shaft (12) in the flow divider (10), establish driving cog axle (11) in the shunting rotating shaft 12, one end of driving cog axle (11) is for being located at rotor (8) internal tooth engagement shaft (20), and the other end is the driving cog axle that meshes with shunting rotating shaft (12) internal tooth.

3. hydraulic pressure threading machine according to claim 2 is characterized in that stator tube (6) inner chamber is pentalpha cavity (28), and the rotor (18) that is located at stator tube (6) inner chamber is the circle-arc tooth of four jiaos of symmetries.

4. hydraulic pressure threading machine according to claim 1, it is characterized in that coupling assembling (02) is by the Connection Block (32) that connects cycloid hydraulic motor (01) and variable speed planetary gear group (03), be located in the Connection Block inner chamber adapter sleeve (33) with adapter sleeve mutually the gear connecting axle (35) of fit form, circle fit close-fitting in one end of gear connecting axle (35) and the adapter sleeve (33), the other end is the sun gear shaft of variable speed planetary gear group.

5. hydraulic pressure threading machine according to claim 4, interior the justifying in the cover that it is characterized in that gear connecting axle (35) one ends has 4 axial grooves, peripheral for embracing circle (44) with the adapter sleeve of screw (45) locking, adapter sleeve (33) is connected with the outer ring keyway (27) of shunting rotating shaft (12), and axle is middle by screw (43) axial restraint.

6. hydraulic pressure threading machine according to claim 1 is characterized in that variable speed planetary gear group (03) comprises central gear (38), two planetary gears (41), main shaft (39) and the inside engaged gear (37) that is located at gear connecting axle (35) one ends.

7. hydraulic pressure threading machine according to claim 1, it is characterized in that hydraulic control unit comprises motor (50), oil pump (47), flow speed control valve (46) and solenoid directional control valve (52), solenoid directional control valve (52) is connected in series with flow speed control valve (46), and solenoid directional control valve (52) is connected with oil pump (47).

8. hydraulic pressure threading machine according to claim 1 is characterized in that the oil pressure of hydraulic motor is output as 10MPa～13MPa.

9. hydraulic pressure threading machine according to claim 1 is characterized in that change-speed gearing group outputting torsion is 290～320N.m.