CN106112144A - Full-automatic pipe threading machine - Google Patents

Full-automatic pipe threading machine Download PDF

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Publication number
CN106112144A
CN106112144A CN201610555633.8A CN201610555633A CN106112144A CN 106112144 A CN106112144 A CN 106112144A CN 201610555633 A CN201610555633 A CN 201610555633A CN 106112144 A CN106112144 A CN 106112144A
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China
Prior art keywords
main shaft
full
shaft
threading machine
push rod
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Granted
Application number
CN201610555633.8A
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Chinese (zh)
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CN106112144B (en
Inventor
张崇栋
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Individual
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Individual
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Priority to CN201610555633.8A priority Critical patent/CN106112144B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/22—Machines specially designed for operating on pipes or tubes
    • B23G1/225—Machines specially designed for operating on pipes or tubes automatically controlled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
    • B23G1/46—Equipment or accessories specially designed for machines or devices for thread cutting for holding the threading tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
    • B23G1/52—Equipment or accessories specially designed for machines or devices for thread cutting for operating on pipes or tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G11/00—Feeding or discharging mechanisms combined with, or arranged in, or specially adapted for use in connection with, thread-cutting machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
    • B23Q3/064—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding elongated workpieces, e.g. pipes, bars or profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/08—Work-clamping means other than mechanically-actuated
    • B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/043—Accessories for spindle drives
    • B23Q5/048—Speed-changing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/12—Mechanical drives with means for varying the speed ratio
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/26—Fluid-pressure drives
    • B23Q5/261—Fluid-pressure drives for spindles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/32—Feeding working-spindles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/52—Limiting feed movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/04—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers
    • B23Q7/046—Handling workpieces or tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G2210/00—Details of threads produced
    • B23G2210/04—Internal threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G2240/00—Details of equipment for threading other than threading tools, details of the threading process
    • B23G2240/36—Methods of threading not otherwise provided for

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Turning (AREA)
  • Manipulator (AREA)

Abstract

The invention discloses a kind of full-automatic pipe threading machine, including motor, drive mechanism, loader mechanism, tapper mechanism and electric controling screen, loader mechanism includes mechanical hand and holding frame, tapper mechanism includes main shaft, tap chuck, feed arrangement and stopping means, tapper mechanism is provided with tapping protection device, tapping protection device includes the gland of hollow push rod and coupling, main shaft is provided with the shaft shoulder in the conical surface, the two ends of hollow push rod all concave the formation conical surface, and respectively with the lateral surface of the shaft shoulder, the medial surface coupling of gland, gland is that spline is connected and fixes axial location with nut with main shaft.The present invention, first gear slip on balladeur train that is fed through of screw tap completes, tapping distance is controlled by limit switch, improve machining accuracy, main shaft coordinates with hollow push rod, effectively prevent excessive the causing of resistance that screw tap is subject to and fractures, reduces the fault rate of screw tap and lathe, each tapper mechanism can be with self contained function, and automaticity is high.

Description

Full-automatic pipe threading machine
The application be invention and created name be the divisional application of the patent application of full-automatic pipe threading machine, the Shen of original application Please be 2015-1-29 day, Application No. 201510044799.9.
Technical field
The present invention relates to the process equipment of pipe fitting female thread, be specifically related to full-automatic pipe threading machine.
Background technology
Pipe fitting internal and external threads tapping machine is a kind of process equipment that pipe fitting manufacturer is commonly used, generally uses single head formula Or three first tap dentition formula tappings, provide feeding power generally by single to tapping, provide rotation by driving motor to add gear Rotatory force, thus complete pipe fitting tapping operation.The main shaft at screw tap place typically uses spline class to design, but due at tapping process Medium power moment of torsion is very big, and the friction that main shaft is subject to is the biggest, and due to class device unprotected in tapper mechanism, therefore tapping During huge impulsive force be very easy to fracture screw tap and then damage lathe, it is easy to cause the damage of machine tool element.With As a example by three current end threading machines, its greatest drawback is that the power of tapper mechanism cannot independently control, the most unprotected device, The work of screw tap is carried out simultaneously, and works the most simultaneously and three screw taps can be made to produce collision, can only be by grinding short screw tap Could normally work, it can be difficult to ensure the degree of accuracy of tapping, therefore have that scrappage is high, fault rate high, production efficiency is low, The defects such as power consumption is big, cost of labor is high.
Summary of the invention
Patent of the present invention problem to be solved is that existing pipe threading machine fault rate is high, automaticity is low and power consumption High problem.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention there is provided a kind of full-automatic pipe fitting tapping Machine, including motor, drive mechanism, loader mechanism, tapper mechanism and electric controling screen, described loader mechanism include mechanical hand and Holding frame, described tapper mechanism includes main shaft, the tap chuck being fixed on the front end of described main shaft, controls described main axle moving Feed arrangement and stopping means, described main shaft runs through the two sides of main spindle box:
Described tapper mechanism is provided with tapping protection device, and described tapping protection device includes the pressure of hollow push rod and coupling Lid, described main shaft is provided with the shaft shoulder in the conical surface, and the two ends of described hollow push rod all concave the formation conical surface, and respectively with described The lateral surface of the shaft shoulder, the medial surface coupling of described gland, described gland is that spline is connected and fixes axle with nut with described main shaft To position；
Described drive mechanism includes belt pulley and the balladeur train being arranged on power transmission shaft, and described power transmission shaft passes through belt pulley With described motor linkage, the middle part of described main shaft is provided with the first gear, and described first gear engages with described balladeur train, described The trailing flank of the first gear is provided with bearing block；
Described stopping means includes stroke-limit bar, the limit switch being arranged on described stroke-limit bar, described spacing Described main spindle box is stretched in the inner of stroke lever, and is linked on vertically moving by described bearing block and described main shaft；
Each described tapper mechanism is equipped with motor described in, and the number of described tapper mechanism is 3 groups, wherein horizontal direction Upper symmetrical each one group, center vertical arranges one group.
In above-mentioned full-automatic pipe threading machine, described feed arrangement includes cylinder and is slidably arranged in described cylinder interior Piston shaft, described hollow push rod rotates the center of described piston shaft of being arranged on.
In above-mentioned full-automatic pipe threading machine, the tooth nut such as it is provided with in described piston shaft and waits tooth screw rod.
In above-mentioned full-automatic pipe threading machine, described cylinder includes cylinder sleeve, left cover and right cover plate, described left cover with Described main spindle box is fixed.
In above-mentioned full-automatic pipe threading machine, described limit switch is provided with the first screens and the second screens.
In above-mentioned full-automatic pipe threading machine, described mechanical hand includes base, sliding axle and handgrip, controls described slip First cylinder of axle height is vertically arranged on described sliding axle, and one end of the second cylinder is provided with and turns for controlling described sliding axle Dynamic active section, described active section is connected with the bottom of described sliding axle.
In above-mentioned full-automatic pipe threading machine, described holding frame is provided with workpiece screens, the first oil cylinder and the second oil cylinder, Described first oil cylinder is located at the side of described workpiece screens, is used for clamping workpiece, and described second oil cylinder is located at described holding frame Bottom, for moving the position of described holding frame.
In above-mentioned full-automatic pipe threading machine, the rear end of described main shaft is additionally provided with dust cover, and described dust cover is with described Right cover plate is fixing to be connected.
In the present invention, each tapper mechanism can synchronize with self contained function or workpiece is processed by compartment of terrain, automatization Degree is high, and first gear slip on balladeur train that is fed through of screw tap completes, and by limit switch control tapping away from From, substantially increasing machining accuracy, and main shaft is provided with the conical surface shaft shoulder, the push rod being provided with the indent conical surface with two ends coordinates, by Relatively big in the resistance being subject at tapping process plug tap, correspondingly, hollow push rod is also big to the thrust of main shaft, and hollow push rod is relative Main shaft can occur the small displacement identical with direction of feed, reduces with the compactness of gland, the therefore disc spring when thrust is excessive With gland, the pressure of hollow push rod will significantly be reduced, cause hollow push rod the shaft shoulder of main shaft cannot be applied bigger pushing away Power, can only turn-take around primary axle slip, thus is prevented effectively from excessive the causing of resistance that screw tap is subject to and fractures, and reduces screw tap and lathe Fault rate, easy to operate, the course of processing is stable, and machining accuracy is high, substantially increases production efficiency, has saved a large amount of one-tenth This, have good practicality.
Accompanying drawing explanation
Fig. 1 is the front view of the present invention；
Fig. 2 is the top view of the present invention；
Fig. 3 is the elevation cross-sectional view of the tapper mechanism of the present invention；
Fig. 4 is the top plan view of Fig. 3；
Fig. 5 is the schematic enlarged-scale view of mechanical hand；
Fig. 6 is the schematic enlarged-scale view of holding frame；
Fig. 7 is the STRUCTURE DECOMPOSITION figure of tapping protection device；
Fig. 8 is the STRUCTURE DECOMPOSITION figure of feed arrangement.
Detailed description of the invention
The invention provides a kind of full-automatic pipe threading machine, failure rate is low, machining accuracy is high.Below in conjunction with being embodied as The present invention is described in detail by example and Figure of description.
As depicted in figs. 1 and 2, the full-automatic pipe threading machine that the present invention provides includes motor 100, drive mechanism 600, dress Mounted mechanism, tapper mechanism 400 and electric controling screen 500, loader mechanism includes mechanical hand 200 and holding frame 300.The present embodiment Middle tapping mechanism 400 arranges three groups altogether, in horizontal direction symmetrical each one group, and center vertical arranges one group.Utilize electric-controlled System screen 500 can control opening and closing and the running parameter of each mechanism of equipment.
As shown in Figure 5 and Figure 6, mechanical hand 200 includes that base 210, sliding axle 220 and handgrip 230, the first cylinder 240 erect Directly being arranged on sliding axle 220, for controlling the height of sliding axle 220, one end of the second cylinder 250 is provided with active section 251, lives Dynamic joint 251 stretches in base 210, is connected with the bottom of sliding axle 220, for controlling the rotation of sliding axle 220.After startup, the One cylinder 240 declines makes handgrip 230 contact workpiece, and after handgrip 230 grabbing workpiece, the first cylinder 240 rises on drive handgrip 230 Rising, the second cylinder 250 rotary hand grip 230, the first cylinder 240 declines again, and workpiece is placed on holding frame by handgrip 230.Etc. work After part steps up, workpiece decontroled by handgrip 230, and the first cylinder 240 rises again, prepares taking of workpiece next time, treats work pieces process Put into next workpiece after completing, repeat above flow process and ensure the carrying out of uninterrupted fully-automatic production.
Holding frame 300 is provided with workpiece screens the 310, first oil cylinder 320 and the second oil cylinder 330, and the first oil cylinder 310 is located at work The side of part screens 310, is used for clamping workpiece, and the second oil cylinder 330 is located at the bottom of holding frame 300, is used for moving holding frame 300 Position.The design of holding frame 300 can meet the processing of multi items pipe fitting, can come according to the size of pipe fitting self and structure Determine clamping degree and the position of workpiece screens 310, there is the highest practicality.
As shown in Fig. 3, Fig. 4, Fig. 7 and Fig. 8, tapper mechanism 400 includes main shaft 420, tap chuck 410, controls main shaft 420 The feed arrangement 440 of movement and stopping means 430 and tapping protection device 450, tap chuck 410 is arranged on main shaft 420 Foremost, the front end of tap chuck 410 is additionally provided with Adjustable tap circle 411 and nut 412, is further provided with steel ball 413, for solid Fixed thread is bored.Screw tap can select suitable model as required, can process multiple pipe fitting.Main shaft 420 is near the one of screw tap End rotates and is arranged on the support seat of main spindle box 710, and main shaft 420 is provided with sliding shaft sleeve 415, and sliding shaft sleeve 415 is externally provided with double Bearing 416, duplex bearing 416 is arranged in a bearing, in order to ensureing the flexibility ratio that main shaft 420 rotates, capping is through main shaft 420 also Closely cooperate with main spindle box 710, and capping is provided with oil sealing 414, to ensure lubrication and the cleaning of main shaft 420.
Main shaft 420 runs through main spindle box 710 and change gear box 720, and the middle part of main shaft 420 is provided with the first gear 421.Transmission Mechanism 600 includes that the power transmission shaft being provided with belt pulley 620, belt pulley 620, for linking with motor 100, power transmission shaft are additionally provided with cunning Moving gear 610.First gear 421 engages with balladeur train 610, and the gear train in change gear box 720 constitutes drive mechanism 600, for regulating the rotating speed of main shaft 420, after motor 100 is opened, make main shaft 420 turn by desired speed by drive mechanism 600 Dynamic, it is possible to according to the feeding of screw tap with return and arrange the different kinds of drive, make the slow feeding of screw tap, fast fallback, raising Working (machining) efficiency.
Feed arrangement 440 includes cylinder, is slidably arranged in the piston shaft 445 of cylinder interior, and cylinder includes cylinder sleeve 441, a left side Cover plate 442, the collar 444 and right cover plate 443, left cover 442 is fixed with main spindle box.Cylinder and piston shaft 445 are used for controlling main shaft The moving displacement of 420, makes main shaft 420 drive screw tap complete feeding and return action.
Tapping protection device 450 includes hollow push rod 454 and the gland 451 of coupling, and main shaft 420 is provided with the axle in the conical surface Shoulder 423, the two ends of hollow push rod 454 all concave the formation conical surface, and respectively with lateral surface, the inner side of gland 451 of the shaft shoulder 423 Face is mated, and gland 451 and main shaft 420 are connected for spline and fix axial location with nut 453, between nut 453 and gland 451 The stability of dynamics is maintained also by two disc springs 452.The rear end of main shaft 420 is additionally provided with dust cover 460, dust cover 460 with Right cover plate 443 is fixing to be connected.Hollow push rod 454 rotates the center being arranged on piston shaft 445, and is provided with the collar 444 for ensureing Hollow push rod 454 keeps Tong Bu with piston shaft 445 when vertically moving, and the tooth nut such as is provided with in piston shaft 445 and waits tooth screw rod, For accurately controlling main shaft 420 and the feeding distance of screw tap.In process of production when tap tapping, can be by from workpiece The biggest resistance, hollow push rod 454 promotes forward the power of main shaft 420 also can increase, and hollow push rod 454 relative main 420 can be sent out The raw small displacement identical with direction of feed, reduces with the compactness of gland 451, therefore disc spring 452 He when thrust is excessive The big degree of pressure of hollow push rod 454 is reduced by gland 451, causes hollow push rod 454 cannot apply the shaft shoulder 423 of main shaft more Big thrust, can only skid around main shaft 420 and turn-take, thus be prevented effectively from excessive the causing of resistance that screw tap is subject to and fracture, reduce therefore Barrier rate.
The limit switch 432 that stopping means 430 includes stroke-limit bar 431, is arranged on stroke-limit bar 431, spacing Switch 432 is provided with the first screens and the second screens, respectively corresponding main shaft 420 feeding forward and the extreme position return backward. Being provided with bearing block 422 on main shaft 420 on the trailing flank of the first gear 421, bearing block 422 does not rotates with main shaft 420, only vertical To mobile upper Tong Bu with main shaft 420 holding.Main spindle box is stretched in the inner of stroke-limit bar 431, and by bearing block 422 and main shaft 420 linkages.
After equipment starts, power transmission shaft is linked with motor 100 by belt pulley 620, and by balladeur train 610 and the first tooth Wheel 421 engagement realizes the rotation of main shaft.When carrying out tapping, piston shaft 445 waits tooth screw rod internal and wait the effect of tooth nut Lower generation length travel, hollow push rod 454 and piston shaft 445 keep synchronizing moving, by the conical surface, main shaft 420 applied thrust, Making screw tap move forward workpiece and carry out tapping, meanwhile the first gear 421 slides on balladeur train 610 and keeps feeding Stability.After tapping completes, piston shaft 445 drives hollow push rod 454, main shaft 420 to return backward.Wherein feeding and rollback distance Being controlled by limit switch 432, after the screens point of stroke-limit bar 431 enters the first screens, main shaft 420 moves forward to the limit Position, stops tapping, and electric control system drives motor 100 reversion to make screw tap invert, and exits from inside workpiece；When spacing row After the screens point of journey bar 431 enters the second screens, main shaft 420 is drawn back and is returned to extreme position, stops retreating, and then screw tap rotates forward Prepare for tapping next time.
In the present invention, each tapper mechanism can synchronize with self contained function or workpiece is processed by compartment of terrain, automatization Degree is high, and first gear slip on balladeur train that is fed through of screw tap completes, it is ensured that the stability of tapping process, And controlled tapping distance by limit switch, substantially increase machining accuracy, and main shaft is provided with the conical surface shaft shoulder, is provided with two ends The hollow push rod of the indent conical surface coordinates, and owing to the resistance being subject at tapping process plug tap is relatively big, correspondingly, hollow push rod is to master The thrust of axle is also big, and hollow push rod relative main can occur the small displacement identical with direction of feed, with the compactness of gland Reducing, therefore when thrust is excessive, the pressure of hollow push rod will significantly be reduced by disc spring and gland, causes the hollow push rod cannot The shaft shoulder of main shaft is applied bigger thrust, can only turn-take around primary axle slip, thus it is excessive to be prevented effectively from the resistance that screw tap is subject to Cause and fracture, reduce the fault rate of screw tap and lathe.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn the knot made under the enlightenment of the present invention Structure changes, and every have same or like technical scheme, within each falling within protection scope of the present invention with the present invention.

Claims (7)

1. full-automatic pipe threading machine, including motor, drive mechanism, loader mechanism, tapper mechanism and electric controling screen, described Loader mechanism includes that mechanical hand and holding frame, described tapper mechanism include main shaft, are fixed on the screw tap clamp of the front end of described main shaft Head, controlling feed arrangement and the stopping means of described main axle moving, described main shaft runs through the two sides of main spindle box, and its feature exists In:
Described holding frame is provided with workpiece screens, the first oil cylinder and the second oil cylinder, and described first oil cylinder is located at described workpiece screens Side, be used for clamping workpiece, described second oil cylinder is located at the bottom of described holding frame, for moving the position of described holding frame Put；
Described tapper mechanism is provided with tapping protection device, and described tapping protection device includes the gland of hollow push rod and coupling, Described main shaft is provided with the shaft shoulder in the conical surface, and the two ends of described hollow push rod all concave the formation conical surface, and respectively with described axle The lateral surface of shoulder, the medial surface coupling of described gland, described gland is that spline is connected and fixing axially with nut with described main shaft Position；
Described drive mechanism includes belt pulley and the balladeur train being arranged on power transmission shaft, and described power transmission shaft passes through belt pulley and institute Stating motor linkage, the middle part of described main shaft is provided with the first gear, and described first gear engages with described balladeur train, and described first The trailing flank of gear is provided with bearing block；
Described stopping means includes stroke-limit bar, the limit switch being arranged on described stroke-limit bar, described stroke-limit Described main spindle box is stretched in the inner of bar, and is linked on vertically moving by described bearing block and described main shaft；
The number of described tapper mechanism is 3 groups, and wherein in horizontal direction symmetrical each one group, center vertical arranges one group, respectively Described tapper mechanism is equipped with motor described in one and described electric controling screen.
2. full-automatic pipe threading machine as claimed in claim 1, it is characterised in that described feed arrangement includes cylinder and slip Being arranged on the piston shaft of described cylinder interior, described hollow push rod rotates the center being arranged on described piston shaft.
3. pipe threading machine as claimed in claim 2 full-automatic, it is characterised in that be provided with in described piston shaft wait tooth nut with Deng tooth screw rod.
4. pipe threading machine as claimed in claim 3 full-automatic, it is characterised in that described cylinder include cylinder sleeve, left cover and Right cover plate, described left cover is fixed with described main spindle box.
5. full-automatic pipe threading machine as claimed in claim 1, it is characterised in that described limit switch is provided with the first screens With the second screens.
6. full-automatic pipe threading machine as claimed in claim 1, it is characterised in that described mechanical hand includes base, sliding axle And handgrip, the first cylinder controlling described sliding axle height is vertically arranged on described sliding axle, and one end of the second cylinder is provided with For controlling the active section that described sliding axle rotates, described active section is connected with the bottom of described sliding axle.
7. full-automatic pipe threading machine as claimed in claim 4, it is characterised in that the rear end of described main shaft is additionally provided with dust-proof Cover, described dust cover is fixing with described right cover plate to be connected.
CN201610555633.8A 2015-01-29 2015-01-29 Full-automatic pipe threading machine Expired - Fee Related CN106112144B (en)

Priority Applications (1)

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CN107876907B (en) * 2017-11-06 2019-06-04 山东鼎梁消防科技有限公司 A kind of fire protection pipeline chasing bar
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CN106112144B (en) 2018-01-23
CN104588792A (en) 2015-05-06

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