CN108788329A - A kind of machine for cutting thread for steel bar - Google Patents
A kind of machine for cutting thread for steel bar Download PDFInfo
- Publication number
- CN108788329A CN108788329A CN201810673224.7A CN201810673224A CN108788329A CN 108788329 A CN108788329 A CN 108788329A CN 201810673224 A CN201810673224 A CN 201810673224A CN 108788329 A CN108788329 A CN 108788329A
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- China
- Prior art keywords
- speed reducer
- head
- machine
- shaft
- splined shaft
- Prior art date
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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
- B23G1/02—Thread cutting; Automatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses
- B23G1/04—Machines with one working-spindle
-
- 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
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating 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
Abstract
The invention discloses a kind of machine for cutting thread for steel bar, including：Main motor, speed reducer, spindle box, head, feed mechanism, guide rod, vice, cutter mechanism, rack and automatic control system；Vice, guide rod and speed reducer are both secured in rack, and speed reducer is provided parallel to axis speed reducer, and speed reducer output shaft is set as splined shaft；Main shaft passes through first shaft coupling and spline axis connection；Main motor is connect with speed reducer；Feed mechanism is arranged in parallel in the lower section of splined shaft, for pushing head to move axially；Automatic control system is electrically connected with feed mechanism and speed reducer.The present disclosure provides a kind of machine for cutting thread for steel bar, have better machining accuracy, higher production efficiency and lower maintenance cost, are particularly suitable for high-volume screw thread steel machining production line, have a vast market foreground.
Description
Technical field
The present invention relates to construction equipment technical fields, more particularly to a kind of machine for cutting thread for steel bar.
Background technology
In modern concrete structural construction, reinforced bar sleeve threaded connection is one of most important connecting method for reinforcing bars.It should
Method is to process straight thread or taper thread by end reinforced, then with being machined with the branch sleeve of corresponding internal thread by two reinforcing bars
It links together, connection is quickly, performance is good, is widely used.The processing of steel bar joint screw is usually live or pre- in engineering construction
The steel bar meter field of component factory processed carries out, and is completed by using special reinforced thread generator.
Machine for cutting thread for steel bar includes by main motor, speed reducer, head, engine base, feed mechanism, guide rod or sliding rail, cooling
System, reinforcing bar clamping vice, rack.Domestic machine for cutting thread for steel bar has nearly 30 years applicating histories, but produces currently on the market
There are still some shortcomings for product：
First, engine base is integrated or is combined into one with speed reducer engine base, and main motor is directly connected to or is mounted in speed reducer
It is indirectly connected with speed reducer on engine base, head spindle is installed on the output shaft of speed reducer, head is installed on main shaft, engine base is mounted in and leads
On bar or sliding rail, when screwing steel bars screw thread, engine base is pushed to drive the edge together such as head, speed reducer, main motor by feed mechanism
Guide rod or sliding rail longitudinal movement, head movement speed depend on feed mechanism provide driving force size, no matter manual drive into
Drive feed mechanism to mechanism or hydropneumatic power assisting device, Feed servo system power all with the thread pitch onrelevant processed,
Only in threading tool or cylindrical die roll after steel bar meter goes out one section of screw thread, molded screw thread and cutter or cylindrical die roll are mutual
Effect, just makes head be moved on by the screw pitch of machined forming thread.Therefore, the spiral shell of the processing of this machine for cutting thread for steel bar
Line is influenced very big by feed mechanism driving force, it is difficult to be produced the screw thread for really meeting design accuracy requirement, be used people completely
The equipment of work driving is even more labor intensity height, and accuracy of thread is poor；And head rotation is formed into subtracting for mechanical linkage structure with screw rod
Fast machine avoids head feeding and manually or mechanically helps although the distance that head rotation is advanced is associated with the formation of linkage screw screw pitch
Dynamic influence of the driving force to accuracy of screw machining, but process different pitch screws and need to use the screw rod of corresponding screw pitch, therefore add
When the screw pitch of work reinforcing bar changes, it is necessary to linkage screw, low production efficiency are replaced, and screw rod abrasion is to screw thread steel machining accuracy
Also there is direct influence.
Secondly, machine for cutting thread for steel bar using input shaft, output shaft same axis structure speed reducer, cooling system
Coolant liquid is to enter spindle hole by the head spindle radial hole installed on speed reducer output shaft, enters back into head center
Hole is lubricated threading tool and screw thread steel silk head, cools down, in the coolant liquid access aperture both sides of head spindle
Ring type seal can accumulate the tiny iron filings that circulating cooling liquid is brought, iron filings are caused to main shaft and sealing element at main shaft cooperation
Coolant liquid will be made to leak after abrasion, damage adjacent parts, cause the higher frequency of maintenance of equipment, reduce the effective time
It is short, increase the processing cost of screw thread steel.
Defect in these machine for cutting thread for steel bar structures in design, seriously constrains screw thread steel machining accuracy and production
The raising of efficiency, we should make great efforts to improve the construction engineering quality in China, and improve the technology of construction equipment, quality level
It is then the basic work for completing this task.
Therefore, how to provide a kind of good processing accuracy, production efficiency high machine for cutting thread for steel bar, be people in the art
The problem of member's urgent need to resolve.
Invention content
In view of this, the present invention provides a kind of machine for cutting thread for steel bar, not only ensure the high precision machining of screw thread steel,
It improves work efficiency, and extends the service life of processing machine, reduce production cost.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of machine for cutting thread for steel bar, including：Main motor, speed reducer, head, the base of tool, main shaft, first shaft coupling, flower
Key axis, spindle box, guide rod, feed mechanism, vice, rack and automatic control system；It the vice, the speed reducer and described leads
Bar is both secured in the rack；The main motor is connected with the speed reducer；The speed reducer is provided parallel to axis deceleration
Machine, and the output shaft of the speed reducer is set as splined shaft；The splined shaft can be slided along the output shaft axis of the speed reducer
It is dynamic；The base of tool and cutter of screwing steel bars are installed, the head is mounted on the master supported by the spindle box on the head
On axis, the main shaft passes through first shaft coupling and the spline axis connection；The feed mechanism is arranged in parallel in the splined shaft
Lower section, for pushing the spindle box to move axially, and then drive the head to be moved along axis by spindle box；It is described automatic
Control system is electrically connected with the speed reducer and the feed mechanism.
Preferably, the spindle box is supported on by a pair of guide rods in the rack, and can be slided along the guide rod axis
It is dynamic；The axis of the guide rod is parallel to the axis of the splined shaft；The treasure maesa herb of through-hole is equipped with centered on the splined shaft setting
Key axis.
Preferably, further include coolant circulation system, the coolant circulation system includes coolant liquid water pipe, the cooling
Liquid water pipe is set in the central through hole of the splined shaft, and the front end of the coolant liquid water pipe is arranged at the center of the head
In hole, the rear end of the coolant liquid water pipe is stretched out other than end of the splined shaft far from head end.
Preferably, the feed mechanism includes：Servo motor, speed reducer for servo motor, leading screw, second shaft coupling and leading screw
One end of swivel nut, the leading screw is mounted in fixed bearing block, and the other end is installed in supporting bearing base；The fixed bearing block and
The supporting bearing base is both secured in the rack；The servo motor is connected with the speed reducer for servo motor, described to watch
The output shaft for taking motor reducer is connect by the second shaft coupling with the leading screw in the fixed bearing block；The silk
Thick stick swivel nut is connected with the leading screw, and is fixedly connected with the spindle box.Servo motor subtracts by speed reducer for servo motor
Accurately leading screw is driven to rotate clockwise or counterclockwise after speed, the rotation of leading screw has pushed leading screw swivel nut and spindle box band motivation
Head is moved along the axis of the splined shaft, to realize the forward or backward of head, is completed the accurate traveling of head, is realized reinforcing bar
The processing of screw thread.
Preferably, the forward end for the coolant liquid water pipe being placed in the head centre bore is provided with reinforcing bar locating rod, and
The reinforcing bar locating rod is corresponding with screw thread steel length to be processed.Realize that the end for being processed reinforcing bar is fixed by reinforcing bar locating rod
Position ensures the machining accuracy of screw thread steel length.
Preferably, further include a cutter mechanism, described cutter mechanism includes hydraulic cylinder and knife ring, and described knife ring setting exists
Folding on the outside of the head for controlling the base of tool, the action of described knife ring are controlled by the hydraulic cylinder.
Preferably, the vice is set as, by the Driven by Hydraulic Cylinder, being clamped by the fixture that a pair moves in parallel in opposite directions
The automatic clamping mechanism of reinforcing bar.
Preferably, the coolant liquid water pipe reaches the splined shaft far from the rear end outside the end of the head end, passes through
Water pipe bracket is fixed on the rack or the speed reducer.
Preferably, the automatic control system includes driving pulley, synchronous belt, driven pulley, encoder and control unit,
The driving pulley is mounted on the splined shaft, and the driven pulley is connect by the synchronous belt with the driving pulley,
The encoder is connect with the driven pulley, and is electrically connected with described control unit.Driving pulley drives driven pulley rotation,
Encoder detects the rotational parameters of driven pulley and is transferred to control unit, and control unit controls servo electricity according to testing result
The movement speed of machine.Screw thread for processing different screw pitch need to only design the driver ginseng to servo motor on the control unit
Number, simple and convenient, not only the labor intensity of operating personnel substantially reduces, but also generally reduce device fabrication and safeguard at
This, substantially increases the equipment effective time, improves production efficiency, significantly reduce the processing cost of screw thread steel.
Preferably, the hydraulic pump driving and control that the hydraulic cylinder is equipped with solenoid valve or electro-hydraulic valve by one；Institute
Hydraulic pump is stated to be electrically connected with the automatic control system.
It can be seen via above technical scheme that compared with prior art, a kind of machine for cutting thread for steel bar disclosed by the invention,
Using parallel axle speed reducing machine, and by speed reducer and the fixed rack of main motor, uses and can axially move in the output end of speed reducer
Dynamic splined shaft provides rotational power, while the feed mechanism driven by servo motor, driving master by splined shaft to head
Axis, head, spindle box, splined shaft are vertically moved along guide rod, and advantage is：
First, the load that feed mechanism driving moving parts advances is greatly reduced, actuating unit, feed mechanism are improved
Durability and service life, reduce the processing cost of screw thread；
Second, with automatic control system control servo motor driving feed mechanism realize the movement to head longitudinal direction and
What head rotation matched is precisely controlled, and the accuracy of screw machining of machine for cutting thread for steel bar is made to be promoted to the industrial lathe of high-precision
Precision level；
Third, coolant circulation system are sent into coolant liquid from the hollow splined output shaft of speed reducer to head centre bore, are made cold
But liquid is thoroughly isolated with mechanical parts such as head spindles, not only avoids the damage of machine components, and the work of direct sending coolant liquid
It is good to make high pressure, cooling process tool, flushing cutting iron filings effect, improves screw processing quality, reduces cutter loss, section
Screw thread process cost is saved；
4th, with the cutter mechanism of automatic control system control driving, knife, the time of returning sword is more accurate, action is more reliable,
It is few to open cutter mechanism accessory loss, further improves accuracy of screw machining；
5th, with the vice of automatic control system control driving, steel bar clamping work is realized into automation, is grasped reducing
The labor intensity for making worker simultaneously, is raised labour productivity, and screw thread process cost is reduced；
6th, it is processed reinforcing bar and positions boom end on being fixed on coolant liquid water pipe in vice clamping sinciput, may be implemented
Screwing steel bars longitudinal direction exact position, positioning method is simple, precision is high, equally has to the raising of accuracy of screw machining and production efficiency
It is contributed.
As it can be seen that the present invention discloses the machine for cutting thread for steel bar of offer, there is better machining accuracy, higher production efficiency
With lower maintenance cost, it is particularly suitable for high-volume screw thread steel machining production line, has a vast market foreground.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 attached drawings are front view provided by the invention.
Fig. 2 attached drawings are B-B sectional views provided by the invention.
Fig. 3 attached drawings are vertical view provided by the invention.
Fig. 4 attached drawings are the sectional view of feed mechanism provided by the invention.
Fig. 5 attached drawings are side view provided by the invention.
Wherein, 1 is main motor, and 2 be speed reducer, and 3 be head, and 4 be feed mechanism, and 5 be vice, and 6 be a cutter mechanism, and 7 are
Rack, 8 be hollow splined shaft, and 9 be coolant liquid water pipe, and 10 be first shaft coupling, and 11 be automatic control system, and 12 be main shaft, 13
It is the base of tool for guide rod, 14,15 be spindle box, and 16 be a knife ring, and 17 be servo motor, and 18 be speed reducer for servo motor, and 19 are
Leading screw, 20 be fixed bearing block, and 21 be supporting bearing base, and 22 be reinforcing bar locating rod, and 23 be driving pulley, and 24 be synchronous belt, 25
It is encoder for driven pulley, 26,27 be leading screw swivel nut, and 28 be second shaft coupling.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a kind of machine for cutting thread for steel bar, including 1, main motor 1, speed reducer 2, head 3, cutter
Seat 14, main shaft 12, first shaft coupling 10, splined shaft 8, spindle box 15, guide rod 13, feed mechanism 4, vice 5, rack 7 and automatic
Control system 11；Vice 5, speed reducer 2 and guide rod 13 are both secured in rack 7；Main motor 1 is connect with speed reducer 2；Speed reducer 2
It is provided parallel to axis speed reducer, and the output shaft of speed reducer 2 is set as splined shaft 8；Splined shaft 8 can be along the output of speed reducer 2
Axis axis slides；The base of tool 14 and cutter of screwing steel bars be installed, head 3 is mounted on to be supported by spindle box 15 on head 3
On main shaft 12；Main shaft 12 is connect by first shaft coupling 10 with splined shaft 8, and by splined shaft 8 transmit come power realization machine
First 3 rotation；The guide rod 13 that a pair of of axis is parallel to 8 axis of splined shaft is fixed in rack 7；Spindle box 15 is by guide rod 13
Support, and can be slided along 13 axis of guide rod；Feed mechanism 4 is arranged in parallel in the lower section of splined shaft 8, for pushing 15 axis of spindle box
Head 3 is driven to be moved along axis to movement, and then by spindle box 15；Automatic control system 11 and speed reducer 2 and feed mechanism 4
It is electrically connected.
Speed reducer 2 is fixed in rack 7, and splined shaft 8 is equipped with the hollow splined shaft of through-hole, splined shaft 8 centered on being arranged
Both ends are stretched out before and after output end of reducer respectively, and speed reducer 2 is given by hollow splined shaft 8, first shaft coupling 10 and main shaft 12
Head 3 provides rotatory force, and moving component is made to only have：Head 3, main shaft 12, spindle box 15, first shaft coupling 10 and hollow splined shaft
8, the total weight of moving mechanical part is light, greatly reduces the load that feed mechanism 4 drives head 3 to advance, makes feed mechanism
Motional inertia reduces, and lifetime of system improves, and thereby reduces the processing cost of screw thread steel.
Further include coolant circulation system to further optimize above-mentioned technical proposal, coolant circulation system includes：
Coolant liquid water pipe 9, coolant liquid water pipe 9 are set in the central through hole of splined shaft 8, and the front end of coolant liquid water pipe 9 is arranged in machine
In first 3 centre bore, the rear end of coolant liquid water pipe 9 is stretched out other than end of the splined shaft 8 far from 3 end of the head.By subtracting
It is inserted into coolant liquid water pipe 9 in 8 centre bore of splined shaft of fast machine 2, cooling water can not only be made all to be flushed on cutting element, it is cooling
Effect is good, and the metal fillings for avoiding screwing steel bars screw thread from cutting is flushed to inside head, is fallen in bite with the rotation of head 3 and
Between processed screw thread steel, to ensure the Forming Quality of screw thread, the machining accuracy of screw thread is improved.
In order to further optimize above-mentioned technical proposal, feed mechanism 4 includes：Servo motor 17, speed reducer for servo motor
18, one end of leading screw 19, second shaft coupling 28 and leading screw swivel nut 27, leading screw 19 is mounted in fixed bearing block 20, other end peace
It fills in supporting bearing base 21, fixed bearing block 20 and supporting bearing base 21 are both secured in rack 7；Feed mechanism 4 is relative to machine
Frame 7 is static, and leading screw 19 rotates, and has pushed the axial movement of spindle box 15；Servo motor 17 and speed reducer for servo motor 18
The output shaft of connection, speed reducer for servo motor 18 is connect by second shaft coupling 28 with leading screw 19 in fixed bearing block 20；Silk
Thick stick swivel nut 27 is connected with leading screw 19, and is fixedly connected with spindle box 15, and as the rotation of leading screw 19 pushes spindle box
15 drive heads 3 are moved along the axis of splined shaft 8.Servo motor 17 drives leading screw 19 after the deceleration of speed reducer for servo motor 18
It accurately rotates clockwise or counterclockwise, the rotation of leading screw has pushed leading screw swivel nut 27 and spindle box 19 to drive head 3 along spline
The axis of axis 8 moves, and to realize the forward or backward of head 3, completes the accurate traveling of head 3, realizes adding for screw thread steel
Work.
In order to further optimize above-mentioned technical proposal, it is placed in the forward end setting of the coolant liquid water pipe 9 of 3 endoporus of head
There is reinforcing bar locating rod 22, and reinforcing bar locating rod 22 is corresponding with screw thread steel length to be processed.It is realized by reinforcing bar locating rod 22
The positioning of reinforcing bar ensures the machining accuracy of screw thread steel.
Further include a cutter mechanism 6 to further optimize above-mentioned technical proposal, cutter mechanism 6 includes hydraulic cylinder and opens
Knife ring 16, knife ring 16 are arranged the folding for controlling the base of tool 14, the action of knife ring 16 in 3 outside of head and pass through hydraulic cylinder
Control.
In order to further optimize above-mentioned technical proposal, vice 5 is set as by Driven by Hydraulic Cylinder, by a pair of opposite parallel
The automatic clamping mechanism of mobile fixture clamping reinforcing bar.
In order to further optimize above-mentioned technical proposal, coolant liquid water pipe 9 reaches splined shaft 8 far from 3 end end of head
Outer rear end is fixed on by water pipe bracket in rack 7 or speed reducer 2.Coolant liquid water pipe 9 is inserted into 8 centre bore of splined shaft, is kept away
Having exempted from sealing system damage brings systematic part to damage, to reduce plant maintenance use cost；Automatic clamping mechanism makes steel
The production and processing of muscle can full automation, significantly improve processing efficiency, reduce screw thread process cost.
In order to further optimize above-mentioned technical proposal, automatic control system 11 include driving pulley 23, synchronous belt 24, from
Movable belt pulley 25, encoder 26 and control unit, driving pulley 23 are mounted on splined shaft 8, and driven pulley 25 passes through synchronous belt 24
It is connect with driving pulley 23, encoder 26 is connect with driven pulley 25, and is electrically connected with control unit.Control unit is set as
PLC, driving pulley drive driven pulley rotation, encoder to detect the rotational parameters of driven pulley and be transferred to PLC, PLC roots
According to the movement speed of testing result control servomotor.Screw thread for processing different screw pitch need to only design on PLC to servo
The driver parameter of motor, simple and convenient, not only the labor intensity of operating personnel substantially reduces, but also generally reduces and set
It prepares and makes and maintenance cost, substantially increase the equipment effective time, improve production efficiency, significantly reduce screw thread steel
Processing cost.
In order to further optimize above-mentioned technical proposal, the liquid that hydraulic cylinder is equipped with solenoid valve or electro-hydraulic valve by one
Press pump drives and control；Hydraulic pump is electrically connected with automatic control system 11.
A kind of course of work of machine for cutting thread for steel bar disclosed by the invention is：First, circuitry, hydraulic circuit are connected
System, starting device automatic control system 11 are inserted into reinforcing bar in vice jaw, and reinforcing bar locating rod 22 is withstood on by end reinforced
On, steel bar clamping control button is pressed, starts automatic clamping mechanism and clamps reinforcing bar, then press steel bar meter button, start main electricity
Machine 1, main motor 1 drive parallel axle speed reducing machine 2 to rotate, the splined shaft 8, first that the power that speed reducer 2 exports passes through output end
Axis device 10, main shaft 12 send head 3 to, and head 3 is rotated with reinforcing bar process tool seat and cutter；The spindle box 15 of supports main shaft 12
It being supported in rack 7 by a pair of guide rods 13,8 parallel beneath of splined shaft is provided with the leading screw 19 driven by servo motor 17,
While head 3 rotates, the splined shaft 8 of synchronous rotation drives driving pulley 23 to rotate, and driving pulley 23 passes through 23 band of synchronous belt
Dynamic driven pulley 25 rotates, and encoder 26 records the rotational parameters data of driven pulley 25 and passes to automatic control system 11,
It is rotated by the PLC control servomotors 17 of automatic control system 11, servo motor 17 is after the deceleration of speed reducer for servo motor 18
Driving leading screw 19 accurately rotates clockwise or counterclockwise, and the rotation of leading screw has pushed leading screw swivel nut 27 and spindle box 15 with motivation
First 3 move along the axis of splined shaft 8, to realize that the setting value according to automatic control system 11 of head 3 moves forward or back,
The accurate traveling on axis during head 3 rotates is completed, realizes the accurate processing of screw thread steel；The steel of complete specific length to be processed
After muscle screw thread, signal enabling cutter mechanism 6 is sent out by PLC setting programs, pushes a knife ring 16 to move by cutter mechanism 6, makes steel
Muscle process tool seat and cutter realize a knife action, and then 17 motor reversal of PLC control servomotors, head 3 is returned to and is set
Positioning is set, while a cutter mechanism 6 retracts original position, unclamps the automatic clamping mechanism of rebar clips, and automatic control system sends out signal,
Speed reducer 2 stops operating, and the rotation of head 3 stops, and removes the reinforcing bar for processing screw thread, and the screw thread process of a reinforcing bar is completed.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (10)
1. a kind of machine for cutting thread for steel bar, which is characterized in that including：Main motor (1), speed reducer (2), head (3), the base of tool
(14), main shaft (12), first shaft coupling (10), splined shaft (8), spindle box (15), guide rod (13), feed mechanism (4), vice
(5), rack (7) and automatic control system (11)；
The vice (5), the speed reducer (2) and the guide rod (13) are both secured in the rack (7)；
The main motor (1) connect with the speed reducer (2)；
The speed reducer (2) is provided parallel to axis speed reducer, and the output shaft of the speed reducer (2) is set as splined shaft (8)；Institute
Stating splined shaft (8) can slide along the output shaft axis of the speed reducer (2)；
The base of tool (14) and cutter of screwing steel bars are installed, the head (3) is mounted on by the main shaft on the head (3)
On the main shaft (12) of case (15) support；The main shaft (12) is connect by first shaft coupling (10) with the splined shaft (8)；
The feed mechanism (4) is arranged in parallel in the lower section of the splined shaft (8), for pushing the spindle box (15) axially to move
It is dynamic, and then drive the head (3) to be moved along axis by spindle box (15)；
The automatic control system (11) is electrically connected with the speed reducer (2) and the feed mechanism (4).
2. a kind of machine for cutting thread for steel bar according to claim 1, which is characterized in that the spindle box (15) passes through a pair
Guide rod (13) is supported in the rack (7), and can be slided along the guide rod (13) axis；The axis of the guide rod (13) is flat
Row is in the axis of the splined shaft (8)；The hollow splined shaft of through-hole is equipped with centered on splined shaft (8) setting.
3. a kind of machine for cutting thread for steel bar according to claim 2, which is characterized in that further include coolant circulation system,
The coolant circulation system includes coolant liquid water pipe (9), and the coolant liquid water pipe (9) is set in the splined shaft (8)
In heart through-hole, and the front end of the coolant liquid water pipe (9) is arranged in the centre bore of the head (3), the coolant liquid water pipe
(9) rear end is stretched out other than end of the splined shaft (8) far from the head (3) end.
4. a kind of machine for cutting thread for steel bar according to claim 2, which is characterized in that the feed mechanism (4) includes：It watches
Take motor (17), speed reducer for servo motor (18), leading screw (19), second shaft coupling (28) and leading screw swivel nut (27), the leading screw
(19) one end is mounted in fixed bearing block (20), and the other end is installed in supporting bearing base (21)；The fixed bearing block
(20) it is both secured in the rack (7) with the supporting bearing base (21)；The servo motor (17) and the servo motor
Speed reducer (18) connects, and the output shaft of the speed reducer for servo motor (18) passes through described the in the fixed bearing block (20)
Two shaft couplings (28) are connect with the leading screw (19)；The leading screw swivel nut (27) and the leading screw (19) are connected, and with institute
It states spindle box (15) to be fixedly connected, and as the rotation of the leading screw (19) pushes the spindle box (15) to drive head (3)
Axis along the splined shaft (8) moves.
5. a kind of machine for cutting thread for steel bar according to claim 3, which is characterized in that be placed in the head (3) centre bore
The forward end of interior coolant liquid water pipe (9) is provided with reinforcing bar locating rod (22), and the reinforcing bar locating rod (22) with it is to be processed
Screw thread steel length is corresponding.
6. a kind of machine for cutting thread for steel bar according to claim 1, which is characterized in that further include a cutter mechanism (6), it is described
It includes hydraulic cylinder and a knife ring (16) to open cutter mechanism (6), and described knife ring (16) setting is used to control on the outside of the head (3)
The folding of the base of tool (14), the action of described knife ring (16) are controlled by the hydraulic cylinder.
7. a kind of machine for cutting thread for steel bar according to claim 1, which is characterized in that the vice (5) is set as by institute
Driven by Hydraulic Cylinder is stated, the automatic clamping mechanism for the fixture clamping reinforcing bar that a pair moves in parallel in opposite directions is passed through.
8. according to a kind of machine for cutting thread for steel bar of claim 3-7 any one of them, which is characterized in that the coolant liquid water pipe
(9) splined shaft (8) is reached far from the rear end outside the end of the head (3) end, and the machine is fixed on by water pipe bracket
On frame (7) or the speed reducer (2).
9. a kind of machine for cutting thread for steel bar according to claim 8, which is characterized in that automatic control system (11) packet
Include driving pulley (23), synchronous belt (24), driven pulley (25), encoder (26) and control unit, the driving pulley (23)
On the splined shaft (8), the driven pulley (25) is connected by the synchronous belt (24) and the driving pulley (23)
It connects, the encoder (26) connect with the driven pulley (25), and is electrically connected with described control unit.
10. a kind of machine for cutting thread for steel bar according to claim 9, which is characterized in that the hydraulic cylinder is set by one
There is the hydraulic pump of solenoid valve or electro-hydraulic valve to drive and control；The hydraulic pump is electrically connected with the automatic control system (11)
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810673224.7A CN108788329A (en) | 2018-06-26 | 2018-06-26 | A kind of machine for cutting thread for steel bar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810673224.7A CN108788329A (en) | 2018-06-26 | 2018-06-26 | A kind of machine for cutting thread for steel bar |
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| Publication Number | Publication Date |
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| CN108788329A true CN108788329A (en) | 2018-11-13 |
Family
ID=64071918
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810673224.7A Pending CN108788329A (en) | 2018-06-26 | 2018-06-26 | A kind of machine for cutting thread for steel bar |
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| CN (1) | CN108788329A (en) |
Cited By (2)
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| CN114603220A (en) * | 2022-05-16 | 2022-06-10 | 江苏中动机械科技有限公司 | Screw pitch control mechanism for reinforcing steel bar thread processing machine |
| CN114799373A (en) * | 2022-03-31 | 2022-07-29 | 李政徽 | Intelligent processing equipment for power pipeline |
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