CN102319950B - Butt welding machine with saw blade - Google Patents
Butt welding machine with saw blade Download PDFInfo
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- CN102319950B CN102319950B CN 201110265508 CN201110265508A CN102319950B CN 102319950 B CN102319950 B CN 102319950B CN 201110265508 CN201110265508 CN 201110265508 CN 201110265508 A CN201110265508 A CN 201110265508A CN 102319950 B CN102319950 B CN 102319950B
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Abstract
The invention discloses a butt welding machine with a saw blade. The butt welding machine comprises a servo motor, a lead screw, two guide rods, a dynamic electrode head, a static electrode head, a pressure adjusting device, a welding current generating device, a saw blade positioning device, a temperature control device, a front limiting proximity switch, a rear limiting proximity switch and a controller, wherein the output end of the servo motor is connected with a speed reducing device; the lead screw is connected with the speed reducing device, and is in threaded connection with a left guide rod connecting block; one end of each of the two guide rods is connected with the left guide rod connecting block, and the other ends of the two guide rods are connected with a right guide rod connecting block; the dynamic electrode head and the static electrode head are glidingly connected to the two guide rods; one end of the pressure adjusting device is propped against the dynamic electrode head, the other end of the pressure adjusting device is connected to the right guide rod connecting block, and one end of the dynamic electrode head is propped against a lug boss on the guide rod; the welding current generating device and the saw blade positioning device are arranged in the installation space of a rear frame; the temperature control device is arranged at the upper end of a box; the front limiting proximity switch and the rear limiting proximity switch are arranged in the box; and the controller is used for controlling the servo motor to rotate according to the preset conditions. The control precision of the position and the speed in the welding process is improved, and the welding quality of the butt welding machine with the saw blade is stabilized and improved.
Description
Technical field
The present invention relates to the butt welding machine technical field, particularly a kind of bands for band butt welding machine.
Background technology
The bands for band of producing on the bands for band production line generally reaches 100 meters or hundreds of rice, can not directly use for band sawing machine, it must be divided into certain-length, to being connected into a ring shape, could use for band sawing machine again.The bands for band butt welding machine is exactly a kind of specific purpose tool of finishing above-mentioned functions.
Band sawing machine is the cutting stock lathe that 20 generation border the nineties just grow up gradually, and the bands for band butt welding machine supporting with it is then more late, it is after band sawing machine is extensive use of, and original manual electric welding has not been satisfied needs and developed out.But it is slower that bands for band butt welding machine technology develops at home, and the bands for band butt welding machine of domestic production now all is type hand or semi-automatic, and having only minority import model is automatic type.Along with development and national economy, the output of bands for band and use amount increase were very fast in recent years, original type hand or semi-automatic bands for band butt welding machine can not satisfy the production needs because efficient is low, welding quality is unstable, and this also is the original intention that we design new automatic butt welding machine HJ-54.
The bands for band butt welding machine in the butt welding process, two kinematic parameters between the bands for band be speed of related movement and relatively between location parameter have than higher requirement, it is directly connected to the quality of butt welding quality.Whole butt welding process is: startup → welding current unlatching → bands for band relative motion → butt welding → welding current shutoff → extruding solder side → bands for band relative motion stops → welding finishing.
In the above-mentioned whole welding process main by alternating current generator+decelerator by driving cam means, realize rotations → straight-line conversion, and detect each position of its moving electrode head that final realization is to the control of whole butt welding process by sense switch.
But in the above-mentioned driving mechanism, cam is owing to work for a long time, and wearing and tearing appear in its work wheel rim easily, and the accuracy of detection of sense switch is also lower, has reduced the control accuracy of butt welding machine movement position.
In addition, previous butt welding machine adopts relay circuit or control, can only single-step operation during work.In the butt welding process, previous butt welding machine adopts A.C. contactor directly to control the elementary tap of welding transformer, at the beginning of the change welding transformer-secondary turn ratio, and then control secondary voltage and welding current, so welding current is to have level to regulate, and just can't change in case design finishes. and the electric current of A.C. contactor control is bigger, for a long time during high-frequency charged closure-disconnection, the easy scaling loss oxidation in contact causes the butt welding machine job insecurity.
In drawing process, previous butt welding machine is to adopt auto-transformer of manual adjustment, regulate the primary voltage of welding transformer, and then regulate temper current and realize temperature controlling, though be step-less adjustment, need the operator to come manual adjustments, but this kind method require the operator very skilled according to the fine observed temperature of eye, temperature is judged that experience is arranged very much, otherwise will produce quality problems. will make in the bands for band tempering quality like this to have participated in human factor.
Therefore, how providing a kind of bands for band butt welding machine, improve the position in its welding process and the control accuracy of speed, stabilize and increase the welding quality of bands for band butt welding machine, is present those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides a kind of bands for band butt welding machine,, stabilize and increase the welding quality of bands for band butt welding machine to improve the position in its welding process and the control accuracy of speed.
For achieving the above object, the invention provides following technical scheme:
A kind of bands for band butt welding machine comprises casing and the panel that is arranged at described casing front side, and described casing has preceding frame installing space and after-frame installing space, also comprises:
Be arranged at the servomotor in the described preceding frame installing space, its output is connected with deceleration device;
The screw mandrel that links to each other with described deceleration device, left guide post contiguous block has been threaded on it;
Two guide posts that one end is connected with described left guide post contiguous block, the other end of two described guide posts is connected with right guide post contiguous block;
Be slidingly connected at two moving electrode head and static cartridges on the described guide post, and described static cartridge fixedlys connected with described casing, and the moving electrode head links to each other with secondary two terminations of welding transformer respectively with the static cartridge;
Described moving electrode head and static cartridge also link to each other with secondary two terminations of welding transformer respectively;
Pressure regulation device, one end and described moving electrode head offset, and the other end is connected on the described right guide post contiguous block, and a side and the described pressure regulation device of described moving electrode head offset, and the boss on the other end and the described guide post offsets;
Be arranged at welding current generation device and saw blade positioner in the described after-frame installing space;
Be arranged at the temperature-detecting device of described casing upper end;
Be arranged in the described casing, be used for limiting respectively the front limit of two extreme positions of described left guide post contiguous block near switch and back spacing near switch;
Controller during welding, is used to control described servomotor by pre-conditioned rotation.
Preferably, in above-mentioned bands for band butt welding machine, described pressure regulation device specifically comprises:
Spring strut;
Be arranged at the butterfly spring group in the described spring strut;
One end inserts the two ends of described spring strut respectively, and the push rod and the reasoning adjusting lever that offset with described butterfly spring group, and described reasoning adjusting lever is threaded with described right guide post contiguous block, and described push rod and described moving electrode head offset.
Preferably, in above-mentioned bands for band butt welding machine, described temperature-detecting device specifically comprises:
The thermometric box body, it is arranged at the upper end of described casing;
Be arranged at the cylinder block in the described thermometric box body;
Be arranged in the described thermometric box body, and the mobile box body that links to each other with the piston rod of described cylinder block;
Be arranged at the temperature sensor in the described mobile box body;
Be arranged in the described thermometric box body, be used to detect the retracted state of described mobile box body retracted state near switch.
Preferably, in above-mentioned bands for band butt welding machine, described temperature control equipment also comprises silicon-controlled voltage regulation device and the touch-screen that is arranged on the described panel; Described controller is connected with described temperature sensor with described touch-screen, be used to control and write down the tempering time of weldment, the tempering time in the different tempering stages of the described touch-screen input of reference, determine the tempering stage of weldment, the analog temperature signal and the temperature in the different tempering stage of described touch-screen input that described temperature sensor is collected compare, and generate the tempering analog control signal of determining;
Described silicon-controlled voltage regulation device is connected with the welding transformer of described bands for band butt welding machine is elementary, and changes the primary voltage of welding transformer according to described analog control signal adjustment self angle of flow, with the temperature of control weldment.
Preferably, in above-mentioned bands for band butt welding machine, described controller comprises:
Link to each other with described temperature sensor, be used for the analog temperature signal of described temperature sensor collection is converted to the modulus converter A/D of digital temperature signal;
Be connected with described touch-screen with described A/D converter output, be used to control and write down the tempering operation time of butt welding machine, tempering time with reference to different tempering stage of touch-screen input, determine the tempering stage of weldment, the temperature in the digital temperature signal after the conversion of contrast A/D converter and the different tempering stage of touch-screen input, the central processor CPU of the digital controlled signal that generation is determined;
Be connected with described central processor CPU, be used for described digital controlled signal is converted to analog control signal, and export the digital to analog converter D/A of described silicon-controlled voltage regulation device to.
Preferably, in above-mentioned bands for band butt welding machine, described silicon-controlled voltage regulation device comprises: circuits for triggering and governor circuit; Wherein:
Described circuits for triggering are used to receive the analog control signal of described controller output, and trigger described governor circuit;
Described governor circuit is used for changing the welding transformer primary voltage according to described analog control signal by adjusting its angle of flow, the temperature of control weldment.
Preferably, in above-mentioned bands for band butt welding machine, also comprise a plurality of contactors, described touch-screen is connected with the input interface of described controller, also be used to receive user's input bands for band specification information and actual condition information and export described controller to;
The former limit winding of described welding transformer is provided with tap in a plurality of minutes and a terminal tap, and an end of the contact in each tap in described minute and the described contactor is connected, and described terminal tap is connected with first output of described silicon-controlled voltage regulation device;
The main coil of a plurality of described contactors is connected with the output interface of described controller respectively, and the other end of the contact in a plurality of described contactor is connected to second output of described silicon-controlled voltage regulation device simultaneously;
The specification information of the bands for band that described controller is also imported according to connected touch-screen generate the on off operating mode of adjusting the contact in a plurality of described contactors signal, transfer to the main coil of a plurality of described contactors, and generate the signal of adjusting thyristor operating angle in the described silicon-controlled voltage regulation device, the control end that transfers to described silicon-controlled voltage regulation device according to the actual condition information that connected touch-screen is imported.
Preferably, in above-mentioned bands for band butt welding machine, described saw blade positioner is used for when welding saw blade being positioned, and comprises fixed support, magnetic piston-rodless cylinder, location-plate, guide plate and connecting plate, wherein:
Described fixed support is fixed on the described casing, and its position is corresponding with the position to be welded of saw blade;
Described magnetic piston-rodless cylinder is fixed on the described fixed support, and described magnetic piston-rodless cylinder is provided with the slide block that can slide along described magnetic piston-rodless cylinder;
Described guide plate is fixed on the described fixed support, and it is provided with pilot hole, and the position of described pilot hole is corresponding with the position to be welded of saw blade;
Described location-plate one end fixes by described connecting plate and described slide block, and the other end is by passing in the described pilot hole.
Preferably, in above-mentioned bands for band butt welding machine, the thickness of described location-plate is 1-2mm.
Preferably, in above-mentioned bands for band butt welding machine, the length of described location-plate is greater than the ultimate range between described slide block and the described guide plate.
From above-mentioned technical scheme as can be seen, bands for band butt welding machine provided by the invention, rotating and drive screw mandrel by controller control servomotor rotates, in the rotation process of servomotor, left side guide post contiguous block is done along screw mandrel and is moved axially, in the guide post contiguous block moving process of a left side, drive guide post and move horizontally, drive right guide post contiguous block simultaneously and move horizontally.Moving electrode head and guide post are matched in clearance, can slide on guide post, its left surface leans against on the boss of guide post, and push rod is being pasted on the right side, its motion is stressed two kinds: when guide post moved right, the boss above it was directly pushing away the moving electrode head and is moving right (1); (2) guide post drives right guide post contiguous block also to left movement when left movement, drives pressure regulation device to left movement, and push rod promotes electrode tip to left movement.So it is rigidity that the moving electrode head moves right, and be flexible to left movement, the size of its thrust is decided by pressure regulation device, and the effect of pressure regulation device is to avoid taking place the rigidity extruding in the welding extrusion process in latter stage, causes the servomotor overload.In sum, the present invention adopts the screw mandrel rotation to drive the moving electrode head and moves, and then realization butt welding operation, owing to adopted the transmission mechanism of servomotor+screw mandrel, its motion control is all adopted digital control, and the control accuracy of position and speed is than higher, and the wearing and tearing of entire mechanism are little, stabilize and increase the welding quality of bands for band butt welding machine, and prolonged the service life of whole driving mechanism.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the bands for band butt welding machine that Fig. 1 provides for the embodiment of the invention;
The structural representation of the panel of the bands for band butt welding machine that Fig. 2 provides for the embodiment of the invention;
The internal structure schematic diagram of the bands for band butt welding machine that Fig. 3 provides for the embodiment of the invention;
The structural representation of the drive system of the bands for band butt welding machine that Fig. 4 provides for the embodiment of the invention;
The drive system flow chart of the bands for band butt welding machine that Fig. 5 provides for the embodiment of the invention;
The structural representation of a kind of state of temperature-detecting device of the bands for band butt welding machine that Fig. 6 provides for the embodiment of the invention;
The structural representation of the another kind of state of the temperature-detecting device of the bands for band butt welding machine that Fig. 7 provides for the embodiment of the invention;
The structural representation of the saw blade positioner that Fig. 8 provides for the embodiment of the invention;
The structural representation of the welding current generation device that Fig. 9 provides for the embodiment of the invention.
The structural representation of the temperature controller that Figure 10 provides for the embodiment of the invention;
The specific embodiment
The invention discloses a kind of bands for band butt welding machine,, stabilize and increase the welding quality of bands for band butt welding machine to improve the position in its welding process and the control accuracy of speed.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
See also Fig. 1-Fig. 5, the structural representation of the bands for band butt welding machine that Fig. 1 provides for the embodiment of the invention; The structural representation of the panel of the bands for band butt welding machine that Fig. 2 provides for the embodiment of the invention; The internal structure schematic diagram of the bands for band butt welding machine that Fig. 3 provides for the embodiment of the invention; The structural representation of the drive system of the bands for band butt welding machine that Fig. 4 provides for the embodiment of the invention; The drive system flow chart of the bands for band butt welding machine that Fig. 5 provides for the embodiment of the invention.
The bands for band butt welding machine that the embodiment of the invention provides, comprise casing 17 and the panel 1 that is arranged at casing 17 front sides, casing 17 has preceding frame installing space 2 and after-frame installing space 3, of the present inventionly focuses on also comprising that servomotor 18, screw mandrel 24, guide post, moving electrode head 6, static cartridge 8, pressure regulation device, welding current generation device, saw blade positioner, temperature control equipment 12, front limit are spacing near switch 26 and controller 37 near switch 25, back.
Wherein, in the frame installing space 2, its output was connected with deceleration device 19 before servomotor 18 was arranged at, and deceleration device 19 is used for the output speed of servomotor 18 is slowed down, and to guarantee guide post suitable translational speed is arranged.Screw mandrel 24 links to each other with deceleration device 19, and left guide post contiguous block 27 has been threaded on it.Guide post is two, and an end that is respectively guide post 30 and 31, two guide posts of following guide post is connected with left guide post contiguous block 27, and the other end of two guide posts is connected with right guide post contiguous block 32.Two guide posts support by left side guiding pole socket 28 and right guiding pole socket 29, two guide posts can lead on a left side pole socket 28 and the 29 enterprising line slips of right guiding pole socket.
Moving electrode head 6 and static cartridge 8 are slidingly connected on two guide posts, and static cartridge 8 fixedlys connected with casing 17, and moving electrode head 6 links to each other with secondary two terminations of welding transformer 40 respectively with static cartridge 8.Moving electrode head 6 can move in the process that two guide posts move.One end and the moving electrode head 6 of pressure regulation device offset, and the other end is connected on the right guide post contiguous block 32, and a side and the pressure regulation device of moving electrode head 6 offset, and the boss 36 on the other end and the guide post offsets.Welding current generation device and saw blade positioner are arranged in the after-frame installing space 3, and the welding current generation device is used to produce welding current, and the saw blade positioner is used for left tape welding saw blade 11 and right tape welding saw blade 10 are positioned.
Temperature-detecting device 12 is arranged at the upper end of casing 17, is used for the temperature in tempering stage is detected in real time, and will detects data and be sent to controller 37.Front limit is arranged in the casing 17 near switch 26 with the back is spacing near switch 25, is used for limiting respectively two extreme positions of left guide post contiguous block 27, limits two extreme positions of moving electrode head 6 then.Controller 37 is used to control servomotor 18 by pre-conditioned rotation when welding.
Bands for band butt welding machine provided by the invention, rotating and drive screw mandrel 24 by controller 37 control servomotors 18 rotates, in the rotation process of servomotor 18, left side guide post contiguous block 27 is done along screw mandrel 24 and is moved axially, in guide post contiguous block 27 moving process of a left side, drive guide post (going up guide post 30 and following guide post 31) and move horizontally, drive right guide post contiguous block 32 simultaneously and move horizontally.Moving electrode head 6 is a matched in clearance with guide post, can slide on guide post, its left surface leans against on the boss 36 of guide post, and push rod 35 is being pasted on the right side, its motion is stressed two kinds: when guide post moved right, the boss 36 above it was directly pushing away moving electrode head 6 and is moving right (1); (2) guide post drives right guide post contiguous block 32 also to left movement when left movement, drives pressure regulation device to left movement, and push rod 35 promotes electrode tip 6 to left movement.So, it is rigidity that moving electrode head 6 moves right, and is flexible to left movement, and the size of its thrust is decided by pressure regulation device, the effect of pressure regulation device is to avoid taking place the rigidity extruding in the welding extrusion process in latter stage, causes servomotor 18 overloads.In sum, the present invention adopts the screw mandrel rotation to drive the moving electrode head and moves, and then realization butt welding operation, owing to adopted the transmission mechanism of servomotor+screw mandrel, its motion control is all adopted digital control, and the control accuracy of position and speed is than higher, and the wearing and tearing of entire mechanism are little, stabilize and increase the welding quality of bands for band butt welding machine, and prolonged the service life of whole driving mechanism.
By shown in Figure 4, pressure regulation device provided by the invention specifically comprises spring strut 33, butterfly spring group 331, push rod 35 and reasoning adjusting lever 34.Wherein, butterfly spring group 331 is arranged in the spring strut 33, the two ends that an end of push rod 35 and reasoning adjusting lever 34 inserts spring strut 33 respectively, and offset with butterfly spring group 331, reasoning adjusting lever 34 is threaded with right guide post contiguous block 32, and push rod 35 offsets with moving electrode head 6.
At length introduce the course of work of whole driving mechanism under the control that controller is a controller 37 below, please refer to accompanying drawing 5, after entire belt saw blade butt welding machine powers on, controller 37 seeks zero instruction at first for 181 1 of servo-drivers, servomotor 18 is being with moving electrode head 6 to be moved to the left, when detect front limit near switch 25 after, servomotor 18 is being with moving electrode head 6 to move right an end distance from S, stop at the O point, and system is just with the zero-bit of O point as system, after this front limit will ensure the safety of system near switch 25 and back are spacing as the limit switch at the two ends of system near switch 26.
When single step-butt welding (respectively by automatically/single step selector switch 13 and welding/tempering selector switch 14 switch) function is selected by system, press when preparing button 15, controller 37 sends certain amount pulse, make servo-driver 181 control servomotors 18 move, make moving electrode head 6 move to butt welding ready position M point, after pressing start button 16, system will operate according to following steps: butt welding startup → butt welding electric current unlatching → servomotor band the moving electrode head and is finished to left movement → butt welding → butt welding electric current shutoff → extruding solder side → servomotor stop motion → butt welding.
When selecting single step-tempering (respectively by automatically/single step selector switch 13 and welding/tempering selector switch 14 switch) function, and after pressing preparation button 15, controller 37 sends another quantitative pulse, make servo-driver 181 move to the position N point of preparing tempering, wait and wait upon the instruction (servomotor need not move during tempering) that next step tempering starts with moving electrode head 6.
When selecting automatic working method, and after pressing preparation button 15, servomotor 18 moves to the position M point of preparing butt welding with moving electrode head 6 earlier.After pressing start button 16, the program of working out in advance according to controller 37, finish butt welding automatically, two operations of tempering, its automatic operating process is as follows: butt welding startup → butt welding electric current unlatching → servomotor band the moving electrode head to left movement → begin to weld → butt welding electric current shutoff → extruding solder side → servomotor stop motion → left saw blade clamp mechanism unclamp → the servomotor band the moving electrode head and moves right 5mm → left saw blade clamp mechanism clamping → right saw blade clamp mechanism and unclamp → the servomotor band the moving electrode head and move right operating temperature → temper current that 5mm → right saw blade clamp mechanism clamping → temperature transducer stretches out and begin to detect weld seam and open and progressively strengthen, after temperature is set temperature by the slope rising-arrival of setting, temperature progressively reduces by setting-up time maintenance → temper current, and temperature stops to detect and returning → left side by the slope decline → temper current shutoff → temperature transducer of setting, right saw blade clamp mechanism unclamps → and automated procedure finishes.
See also Fig. 6 and Fig. 7, the structural representation of a kind of state of temperature control checkout gear of the bands for band butt welding machine that Fig. 6 provides for the embodiment of the invention; The temperature control equipment of the bands for band butt welding machine that Fig. 7 provides for the embodiment of the invention detects a kind of structural representation of state in addition.
Temperature control equipment 12 can comprise specifically that thermometric box body 121, cylinder block 122, mobile box body 125, temperature sensor 126 and retracted state are near switch 128.Wherein thermometric box body 121 is arranged at the upper end of casing 17, and cylinder block 122 is arranged in the thermometric box body 121, and mobile box body 125 is arranged in the thermometric box body 121, and links to each other with the piston rod 124 of cylinder block 122.Temperature sensor 126 is arranged in the mobile box body 125, and the retracted state that is used to detect mobile box body 125 retracted states is arranged in the thermometric box body 121 near switch 128.
As shown in Figure 7, when welding, temperature sensor 126 is not worked, and mobile box body 125 is regained under the effect of cylinder block 122, and retracted state is used to detect its retracted state near switch 128.
As shown in Figure 6, when tempering, mobile box body 125 is released under the effect of cylinder block 122, is detected by the temperature of the circular hole that exposes below to workpiece.
See also Fig. 9, the structural representation of the welding current generation device that Fig. 9 provides for the embodiment of the invention.
Welding current generation device disclosed by the invention, can carry out step-less adjustment to welding current, bands for band at various sizes provides accurate welding current respectively, and no longer realize the shutoff of welding current by contactor, thereby the welding current turn-off time that exists in the solution prior art is accurate inadequately, easy scaling loss of contacts of contactor or oxidation and the problem of the bands for band butt welding machine job insecurity that causes.
Welding current generation device provided by the invention comprises: welding transformer 40, silicon-controlled voltage regulation device 39, controller 37, touch-screen 4 and contactor KM1, KM2, KM3 and KM4.
Wherein, silicon-controlled voltage regulation device 39 comprises a control end, two inputs and two outputs.
The two ends of the secondary winding of welding transformer 40 are connected to static cartridge 6 and moving electrode head 8 respectively, can press-fit bands for band to be welded on the electrode tip; Former limit winding is provided with tap in a plurality of minutes and a terminal tap, terminal tap is connected with first output of silicon-controlled voltage regulation device 39, each divides an end of the contact in tap and the contactor to be connected, and the other end of the contact in a plurality of contactors (i.e. an end that is not connected with minute tap) while is connected with second output of silicon-controlled voltage regulation device 39.Concrete, an end of contact is connected to the branch tap among the contactor KM1, and the other end is connected to second output of silicon-controlled voltage regulation device 39; An end of contact is connected to the branch tap among the contactor KM2, and the other end is connected to second output of silicon-controlled voltage regulation device 39; An end of contact is connected to the branch tap among the contactor KM3, and the other end is connected to second output of silicon-controlled voltage regulation device 39; An end of contact is connected to the branch tap among the contactor KM4, and the other end is connected to second output of silicon-controlled voltage regulation device 39.
Touch-screen is connected with the input interface of controller 37, is used to receive the specification information and the actual condition information of the bands for band of user's input, and exports controller 37 to.
The D/A output interface of controller 37 is connected with the main coil of contactor KM1, KM2, KM3 and KM4 with the control end of silicon-controlled voltage regulation device 39, digital output interface, and controller 37 can receive specification information and the actual condition information of user by the bands for band of touch-screen input simultaneously.
The main coil of contactor changes the on off operating mode of contact separately after receiving the control signal of controller 37 outputs under the effect of control signal, determine first-secondary turn ratio in the welding transformer 40, tentatively determines the size of welding transformer 40 secondary voltages.After silicon-controlled voltage regulation device 39 receives the analog quantity control signal of controller 37 outputs, amplitude according to control signal is adjusted self angle of flow, adjust the primary voltage of welding transformer 40, realization is to the fine tuning of secondary voltage, thereby guaranteed that welding transformer 40 can carry out step-less adjustment to welding current according to the specification and the actual condition of bands for band.In addition, whether the shutoff of welding current realizes by the conducting of control silicon controlled, realize that with the contact by contactor the shutoff of welding current compares, the reaction time of its shutoff is shorter, the shutoff operation is more accurate, and the charged disconnection in the contact that need not contactor, avoided by the easy scaling loss of contacts of contactor or oxidation and the problem of the bands for band butt welding machine job insecurity that causes.
In sum, in the welding current generation device disclosed by the invention, change the first-number of secondary turns ratio of transformer by contactor, the preliminary size of determining transformer-secondary voltage, afterwards by changing the primary voltage of silicon controlled angle of flow adjustment transformer in the silicon-controlled voltage regulation device, realization is to the fine tuning of secondary voltage, thereby the assurance transformer carries out step-less adjustment to welding current, can provide accurate welding current respectively at the bands for band of different size.In addition, whether the shutoff of welding current realizes by the conducting of control silicon controlled, realize that with the contact by contactor the shutoff of welding current compares, the reaction time of its shutoff is shorter, it is more accurate to turn-off operation, and avoided the problem of the bands for band butt welding machine job insecurity that caused by the easy scaling loss of contacts of contactor or oxidation.
In force, touch-screen is a personal-machine interactive interface, and the user can be by the specification information and the actual condition information of touch-screen input tape saw blade.
Above-mentioned controller 37 can be made up of single-chip microcomputer, digital to analog converter and relay.Touch-screen is connected with controller 37, exports the specification information and the actual condition information of the bands for band of user input to controller 37; Controller 37 generates the control information of regulating the on off operating mode of contact among contactor KM1, KM2, KM3 and the KM4 according to the specification information of the bands for band that receives, because the operating current of contactor is bigger, between controller 37 and each contactor KM1, KM2, KM3 and KM4, a relay is set respectively, controller 37 exports control information to relay, regulates the on off operating mode of contact in the contactor by the duty that changes relay; Controller 37 generates the control information of regulating thyristor operating angle in the silicon-controlled voltage regulation device 39 according to the actual condition information that receives, this control information is converted to the analog signals of 0～10 volt or 0～20 milliampere by digital to analog converter, and export the control end of silicon-controlled voltage regulation device 39 to, adjust the silicon controlled angle of flow.
In the enforcement, controller 37 can also adopt programmable logic controller (PLC) (PLC), because PLC can directly drive contactor, so need not to be provided with in addition again relay, and integrated digital to analog converter among the PLC, therefore when selecting PLC for use, can simplify by controller 37 structure of welding current generation device.
See also Figure 10, the structural representation of the temperature controller that Figure 10 provides for the embodiment of the invention.
Temperature controller provided by the invention comprises temperature-detecting device 12, touch-screen 4, temperature sensor 126, controller 37 and silicon-controlled voltage regulation device 39.Wherein:
Touch-screen 4 is used to import weldment (right saw blade 10 to be welded and left saw blade to be welded 11) the required control parameter of tempering, and the required control parameter of tempering comprises that the tempering time in different tempering stages and temperature, the material of weldment, the dimensional discrepancy and the butt welding machine environment temperature of living in of weldment determine.
Silicon-controlled voltage regulation device 39 receives the analog control signal of controller 37 outputs, amplitude according to analog control signal is adjusted self angle of flow, realization is to the adjustment of welding transformer 40 primary and secondary voltages, and then realized change to welding transformer 40 secondary currents, flow into the electric current of weldment with control, finally control the temperature in tempering zone, promptly control the temperature of weldment.
Need to prove: temperature control equipment shown in Figure 10 does not comprise welding transformer 40 and weldment, and mark welding transformer 40 and weldment are for the embodiment of the invention is described better in Fig. 9.
Above-mentioned controller 37 can be PLC(Programmable Logic Controller, programmable logic controller (PLC)), also can be single-chip microcomputer, its structural representation sees also Fig. 9, comprise: A/D(Analogto Digital, analog to digital) converter, CPU(Central Processing Unit, central processing unit) and D/A(Digital to Analog, digital to analogy) converter.Wherein:
A/D converter links to each other with temperature sensor 126, is used for the analog temperature signal that temperature sensor 126 is gathered is converted to digital temperature signal.
CPU is connected with touch-screen 4, be used to write down the operating time of butt welding machine tempering weldment, with reference to the tempering time in different tempering stage of touch-screen 4 input, determine the tempering stage of weldment, the temperature in the digital temperature signal after the conversion of contrast A/D converter and the different tempering stage of touch-screen 4 inputs, the digital controlled signal of the tempering stage correspondence that generation is determined.
D/A converter is connected with CPU, is used for digital controlled signal is converted to analog control signal, and exports silicon-controlled voltage regulation device 39 to.This analog control signal can be the analog signal of a 0～10V, can be the analog signal of a 0～20mA also, is used to be added in the control end of silicon-controlled voltage regulation device 39.
The structural representation of silicon-controlled voltage regulation device 39 sees also Figure 10, comprising: circuits for triggering 391 and governor circuit 392.Wherein:
Circuits for triggering 391 are used to receive the analog control signal of controller 37 outputs, and trigger governor circuit 392, make governor circuit 392 conductings.
The touch-screen 4 that the embodiment of the invention provided can be used as a personal-machine interactive interface, and the real-time working process of butt welding machine is shown in the mode of figure and curve on the interface.Can also on the interface, show simultaneously the control parameter, as the tempering time and the temperature of the different phase of touch-screen 4 inputs, and the interior real time temperature of weldment.
Use technique scheme, the tempering time of controller 37 controls and record weldment with reference to the tempering time in different tempering stage of touch-screen 4 inputs, is determined the tempering stage of weldment.The temperature in the different tempering stage that analog temperature signal in the weldment drawing process of temperature sensor 126 collections and touch-screen 4 are imported compares simultaneously, and the analog control signal that output is determined exports controllable silicon regulator 4 to.Controllable silicon regulator 4 is adjusted self angle of flow according to analog control signal, realizes to welding transformer 40 secondary currents, promptly realizing the automatic control of the electric current of inflow weldment, and then realizes control temperature automatically.Compared with prior art, realized tempering stage and weldment temperature auto control have been improved the temperature controlled degree of accuracy, reduced operator's workload and operation easier.
See also Fig. 8, the structural representation of the saw blade positioner that Fig. 8 provides for the embodiment of the invention.
Saw blade detent mechanism provided by the invention comprises: fixed support 101, magnetic piston-rodless cylinder 102, location-plate 105, guide plate 106 and connecting plate 104, wherein: fixed support 101 is fixed on the casing 17, and magnetic piston-rodless cylinder 102, location-plate 105, guide plate 106 and connecting plate 104 are installed on the fixed support 101.
Magnetic piston-rodless cylinder 102 is installed between the U type opening of fixed support 101, and the two ends of magnetic piston-rodless cylinder 102 all are connected with compressed air loop (not shown).Magnetic piston-rodless cylinder 102 is provided with slide block 103, in magnetic piston-rodless cylinder 102, magnetic piston is set, slide block 103 also is a magnetic material, so slide block 103 can be in magnetic piston-rodless cylinder 102 can be slided along magnetic piston-rodless cylinder 102 under the drive of magnetic piston.
One end of location-plate 105 fixes by connecting plate 104 and slide block 103, and the other end is by passing in the pilot hole on the guide plate 106.Because the fixed position of fixed support 101 and guide plate 106 is all corresponding with the position to be welded of saw blade, so location-plate 105 is by also corresponding with concrete position to be welded after passing in the pilot hole.In order to prevent location-plate 105 by breaking away from the pilot hole, the length requirement of location-plate 105 is greater than the ultimate range between slide block 103 and the guide plate 106.
In the embodiment of the present application, the thickness of location-plate 105 can be 1-2mm, like this when placing saw blade, can at first location-plate 105 be stretched out, rest on the centre of two electrode tips, the gap after feasible the placement between the saw blade is between 1-2mm, meet the demands, in addition, in other embodiment of the application, the thickness of location-plate 105 can also be according to actual needs and free adjustment.
This saw blade detent mechanism that the embodiment of the present application provides before use, slide block 103 is positioned at the right-hand member of magnetic piston-rodless cylinder 102.In use, controller 37 is at first controlled air-operated solenoid valve the right-hand member of magnetic piston-rodless cylinder 102 is connected with the compressed air loop, piston in it will be to left movement, drive the left side that slide block 103 moves to fixed support 101 simultaneously, promptly this moment, contiguous block 104 drive location-plates 105 were to left movement, location-plate 105 is under the guiding of pilot hole, extend into the middle welding position of butt welding machine two electrode tips, at this moment, can the operator can saw blade is to be welded two ends withstand on the side of location-plate 105 respectively, because the effect of location-plate 105 is arranged, the operator can be quick, easily saw blade is in place, and can guarantee to treat that the gap between the two ends of saw blade welding is 1-2mm, and be in the center between two electrode tips accurately.
After saw blade is in place, by air clamper saw blade is fixed again, controller 37 is controlled air-operated solenoid valve then the left end of magnetic piston-rodless cylinder 102 is connected with the compressed air loop, magnetic piston-rodless cylinder 102 interior pistons will move right this moment, driving slide block 103 moves right, and location-plate 105 also moves right under the drive of slide block 103, promptly makes location-plate 105 leave position to be welded.Return and detect sliding determining after 9 when location-plate 105, just can weld near switch 107.
After leaving at location-plate, automatically weld, in other embodiment of the application, this saw blade detent mechanism can also comprise: near switch 107, be installed on the fixed support 101 near switch 107, position when its position is positioned at magnetic piston-rodless cylinder 102 right-hand members with slide block 103 is corresponding, is used to detect the reset case of slide block 103.
In the embodiment of the present application, after the operator was in place saw blade, slide block 103 moved right along magnetic piston-rodless cylinder 102, after detecting slide block 103 near switch 107, detection signal can be taken place to controller 37, make the bands for band butt welding machine can carry out welding operation.
By above scheme as seen, this saw blade detent mechanism that the embodiment of the present application provides, when needs are placed saw blade, the right-hand member that magnetic is not had piston-cylinder is connected with the compressed air loop, slide block will drive location-plate and enter into position to be welded, at this moment, operating personnel only need the two ends that saw blade is to be welded to contact with the side of location-plate, because the thickness of location-plate requires to be consistent with the welded gaps of saw blade, and the position of location-plate is corresponding with the position, middle of two electrode tips, thus operating personnel can be simply, apace saw blade is in place.After saw blade was in place and is fixing, the left end that magnetic is not had piston-cylinder was connected with the compressed air loop, and slide block will drive location-plate and leave the welding position, and just can weld this moment.
Compared with prior art, use this saw blade detent mechanism when welding, operating personnel need not repeatedly putting the adjustment saw blade, and artificial disturbance has been reduced in the placement location and the gap of saw blade, and guarantee that the gap of saw blade is positioned at the middle of two electrode tips.Therefore this saw blade detent mechanism can be simple, convenient so that put the operation of saw blade during welding, reduced the time before the welding, and can avoid because the too inclined to one side problem that causes burning out electrode tip in saw blade gap.
In addition, this saw blade detent mechanism also be provided with can detect that slide block resets near switch, after slide block resets success, can control welding near switch and weld automatically like this, make the Automation of Welding degree improve.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. bands for band butt welding machine comprises casing (17) and is arranged at the panel (1) of described casing (17) front side, and described casing (17) has preceding frame installing space (2) and after-frame installing space (3), it is characterized in that, also comprises:
Be arranged at the servomotor (18) in the described preceding frame installing space (2), its output is connected with deceleration device (19);
The screw mandrel (24) that links to each other with described deceleration device (19), left guide post contiguous block (27) has been threaded on it;
Two guide posts that one end is connected with described left guide post contiguous block (27), the other end of two described guide posts is connected with right guide post contiguous block (32);
Be slidingly connected at two moving electrode head (6) and static cartridges (8) on the described guide post, and described static cartridge (8) is fixedlyed connected with described casing (17), and moving electrode head (6) links to each other with secondary two terminations of welding transformer (40) respectively with static cartridge (8);
Pressure regulation device, one end and described moving electrode head (6) offset, the other end is connected on the described right guide post contiguous block (32), and a side and the described pressure regulation device of described moving electrode head (6) offset, and the boss (36) on the other end and the described guide post offsets;
Be arranged at welding current generation device and saw blade positioner in the described after-frame installing space (3);
Be arranged in the described casing (17), be used for limiting respectively the front limit of (27) two extreme positions of described left guide post contiguous block near switch (25) and back spacing near switch (26);
Temperature control equipment, described temperature control equipment comprises the temperature-detecting device (12) that is arranged at described casing (17) upper end, and controller (37), during welding, described controller (37) is used to control described servomotor (18) by pre-conditioned rotation.
2. bands for band butt welding machine as claimed in claim 1 is characterized in that, described pressure regulation device specifically comprises:
Spring strut (33);
Be arranged at the butterfly spring group (331) in the described spring strut (33);
Push rod (35) and thrust adjusting lever (34), one end of one end of described push rod (35) and thrust adjusting lever (34) inserts the two ends of described spring strut (33) respectively, and offset with described butterfly spring group (331), described thrust adjusting lever (34) is threaded with described right guide post contiguous block (32), and described push rod (35) offsets with described moving electrode head (6).
3. bands for band butt welding machine as claimed in claim 1 is characterized in that, described temperature-detecting device (12) specifically comprises:
Thermometric box body (121), it is arranged at the upper end of described casing (17);
Be arranged at the cylinder block (122) in the described thermometric box body (121);
Be arranged in the described thermometric box body (121), and the mobile box body (125) that links to each other with the piston rod (124) of described cylinder block (122);
Be arranged at the temperature sensor (126) in the described mobile box body (125);
Be arranged in the described thermometric box body (121), be used to detect the detection of described mobile box body (125) retracted state near switch (128).
4. bands for band butt welding machine as claimed in claim 3 is characterized in that, described temperature control equipment also comprises silicon-controlled voltage regulation device (39) and is arranged at touch-screen (4) on the described panel (1); Described controller (37) is connected with described temperature sensor (126) with described touch-screen (4), be used to control and write down the tempering time of weldment, the tempering time in the different tempering stages of the described touch-screen of reference (4) input, determine the tempering stage of weldment, the analog temperature signal and the temperature in the different tempering stage of described touch-screen (4) input that described temperature sensor (126) is collected compare, and generate the tempering analog control signal of determining;
Described silicon-controlled voltage regulation device (39) is connected with the welding transformer (40) of described bands for band butt welding machine, and changes the primary voltage of welding transformer (40) according to described analog control signal adjustment self angle of flow, with the temperature of control weldment.
5. bands for band butt welding machine as claimed in claim 4 is characterized in that, described controller (37) comprising:
Link to each other with described temperature sensor (126), be used for the analog temperature signal that described temperature sensor (126) is gathered is converted to the modulus converter A/D of digital temperature signal;
Be connected with described touch-screen (4) with described A/D converter output, be used to control and write down the tempering operation time of butt welding machine, tempering time with reference to different tempering stage of touch-screen (4) input, determine the tempering stage of weldment, the temperature in the digital temperature signal after the conversion of contrast A/D converter and the different tempering stage of touch-screen (4) input, the central processor CPU of the digital controlled signal that generation is determined;
Be connected with described central processor CPU, be used for described digital controlled signal is converted to analog control signal, and export the digital to analog converter D/A of described silicon-controlled voltage regulation device to.
6. bands for band butt welding machine as claimed in claim 5 is characterized in that, described silicon-controlled voltage regulation device comprises: circuits for triggering (391) and governor circuit (392); Wherein:
Described circuits for triggering (391) are used to receive the analog control signal of described controller output, and trigger described governor circuit (392);
Described governor circuit (392) is used for changing the welding transformer primary voltage according to described analog control signal by adjusting its angle of flow, the temperature of control weldment.
7. bands for band butt welding machine as claimed in claim 6, it is characterized in that, also comprise a plurality of contactors, described touch-screen (4) is connected with the input interface of described controller, also be used to receive user's input bands for band specification information and actual condition information and export described controller to;
The former limit winding of described welding transformer (40) is provided with tap in a plurality of minutes and a terminal tap, one end of the contact in each tap in described minute and the described contactor is connected, and described terminal tap is connected with first output of described silicon-controlled voltage regulation device (39);
The main coil of a plurality of described contactors is connected with the output interface of described controller respectively, and the other end of the contact in a plurality of described contactor is connected to second output of described silicon-controlled voltage regulation device simultaneously;
The specification information of the bands for band that described controller is also imported according to connected touch-screen (4) generate the on off operating mode of adjusting the contact in a plurality of described contactors signal, transfer to the main coil of a plurality of described contactors, and generate the signal of adjusting thyristor operating angle in the described silicon-controlled voltage regulation device (39), the control end that transfers to described silicon-controlled voltage regulation device (39) according to the actual condition information that connected touch-screen (4) is imported.
8. bands for band butt welding machine as claimed in claim 1, it is characterized in that, described saw blade positioner is used for when welding saw blade being positioned, comprise fixed support (101), magnetic piston-rodless cylinder (102), location-plate (105), guide plate (106) and connecting plate (104), wherein:
Described fixed support (101) is fixed on the described casing (17), and its position is corresponding with the position to be welded of saw blade;
Described magnetic piston-rodless cylinder (102) is fixed on the described fixed support (101), and described magnetic piston-rodless cylinder (102) is provided with the slide block (103) that can slide along described magnetic piston-rodless cylinder (102);
Described guide plate (106) is fixed on the described fixed support (101), and it is provided with pilot hole, and the position of described pilot hole is corresponding with the position to be welded of saw blade;
Described location-plate (105) one ends fix by described connecting plate (104) and described slide block (103), and the other end is by passing in the described pilot hole.
9. bands for band butt welding machine as claimed in claim 8 is characterized in that, the thickness of described location-plate is 1-2mm.
10. bands for band butt welding machine as claimed in claim 8 is characterized in that, the length of described location-plate is greater than the ultimate range between described slide block and the described guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110265508 CN102319950B (en) | 2011-09-08 | 2011-09-08 | Butt welding machine with saw blade |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110265508 CN102319950B (en) | 2011-09-08 | 2011-09-08 | Butt welding machine with saw blade |
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| CN102319950A CN102319950A (en) | 2012-01-18 |
| CN102319950B true CN102319950B (en) | 2013-07-24 |
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| CN 201110265508 Active CN102319950B (en) | 2011-09-08 | 2011-09-08 | Butt welding machine with saw blade |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825888B (en) * | 2017-02-08 | 2019-12-13 | 上海嘉朗实业有限公司 | Semi-automatic flash butt welding online temperature measurement frequency conversion drive control system |
| CN109396552B (en) * | 2018-11-06 | 2023-10-27 | 安徽科技学院 | Welding equipment and welding method for bimetal saw blade |
| CN110014211B (en) * | 2019-04-18 | 2021-04-30 | 江阴市科宇电器有限公司 | Horizontal double forging steel wire butt welding machine |
| CN110253126B (en) * | 2019-07-23 | 2024-01-12 | 上海嘉朗实业南通智能科技有限公司 | Semi-automatic flash butt welding machine |
| DE102022112795A1 (en) | 2022-05-20 | 2023-11-23 | WIKUS-Sägenfabrik Wilhelm H. Kullmann GmbH & Co. KG | Band flash butt welding machine and attachment group for a band flash butt welding machine |
| WO2023222584A1 (en) | 2022-05-20 | 2023-11-23 | WIKUS-Sägenfabrik Wilhelm H. Kullmann GmbH & Co. KG | Band flash butt welding machine and group of accessories for a band flash butt welding machine |
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