CN209792859U - friction welding device with interaction of welding force closed-loop control and open-loop control - Google Patents
friction welding device with interaction of welding force closed-loop control and open-loop control Download PDFInfo
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- CN209792859U CN209792859U CN201920150870.5U CN201920150870U CN209792859U CN 209792859 U CN209792859 U CN 209792859U CN 201920150870 U CN201920150870 U CN 201920150870U CN 209792859 U CN209792859 U CN 209792859U
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- 238000003466 welding Methods 0.000 title claims abstract description 87
- 230000003993 interaction Effects 0.000 title claims abstract description 11
- 239000003921 oil Substances 0.000 claims description 174
- 239000010720 hydraulic oil Substances 0.000 claims description 46
- 230000033001 locomotion Effects 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000005242 forging Methods 0.000 claims 2
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- 230000002035 prolonged effect Effects 0.000 abstract description 2
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- 230000033228 biological regulation Effects 0.000 description 5
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- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009194 climbing Effects 0.000 description 1
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- 230000020169 heat generation Effects 0.000 description 1
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Abstract
a friction welding device with the interaction of welding force closed-loop control and open-loop control can realize the axial friction welding function of the interaction of pressure open-loop control and pressure closed-loop control. The utility model discloses to the upset friction weld loading system based on electro-hydraulic servo valve 9 constitutes, prepare process, tertiary friction welding process and the back auxiliary process of welding before welding, through electro-hydraulic servo valve 9 with pressure open-loop and pressure closed loop control interact to upset hydro-cylinder 7 oil supply, accomplish axial friction welding process. The pressure open-loop control solves the problem that the oil pressure of the forward cavity of the upsetting oil cylinder 7 is too high in the no-load forward process of the movable sliding table 5, and the pressure closed-loop control mode enables the three-stage welding pressure to be accurately controllable. The welding quality is effectively guaranteed through the interaction of the two control modes, and the service life of the equipment is prolonged.
Description
the technical field is as follows:
The utility model relates to a welding power closed-loop control and open-loop control interact's friction welding device.
Background art:
The axial friction welding machine mainly comprises a welding workpiece clamping mechanism, a power system, a main shaft system, a transmission mechanism, an upsetting loading mechanism and the like. The upset welding loading system is used as a key actuating mechanism for axial friction welding, and the loading characteristic of the upset welding loading system has direct influence on the friction welding quality and the service life of a welding machine. The axial welding loading force takes a hydraulic driving force as a main loading mode, and a hydraulic proportional valve or a hydraulic servo valve is widely applied to an axial friction welding machine at present and provides the hydraulic driving force in the following mode:
(1) The oil supply mode of the hydraulic proportional valve is as follows: hydraulic oil output by a hydraulic oil source enters a hydraulic proportional valve, the oil pressure of the hydraulic oil is output to the upsetting oil cylinder through a reversing valve after being adjusted, the reversing valve outputs the hydraulic oil to an advancing cavity or a retreating cavity of the upsetting oil cylinder according to the requirement of a welding process, and a pressure sensor acquires an oil pressure signal of the advancing cavity of the upsetting oil cylinder. In the welding process, the electric signal output by the welding machine control system controls the oil pressure output by the hydraulic proportional valve, and further controls the welding force output by the upsetting welding loading system. The welding pressure can be adjusted on line and steplessly by adopting the hydraulic proportional valve.
(2) the oil supply mode of the hydraulic servo valve is as follows: in an upsetting welding loading system formed by a hydraulic servo valve, a hydraulic system oil source, the hydraulic servo valve and an upsetting oil cylinder form a hydraulic loading loop of the upsetting welding loading system, and a pressure sensor acquires oil pressure signals of an advancing cavity and a retreating cavity of the upsetting oil cylinder. An oil source of the hydraulic system supplies oil to the hydraulic servo valve, and the hydraulic servo valve adjusts output oil pressure under the control of an electric signal to provide required welding force for the upset welding loading system. Compared with a hydraulic proportional valve oil supply mode, the hydraulic servo valve oil supply mode can realize online adjustment of output hydraulic oil pressure, and can also adjust the direction of the hydraulic oil so as to control the movement direction of the upsetting oil cylinder.
In summary, based on the above two oil supply methods of the axial friction welding machine, the upset welding loading process has the following device characteristics:
(1) The hydraulic oil pressure is controlled by the control system, so that the welding pressure required by the welding process can be provided, and the oil pressure stepless pressure regulation of the upsetting welding oil way can be realized within the oil pressure range of the system;
(2) The stable output of the oil pressure can be realized;
The axial friction welding machine produced based on the two oil supply modes has the following defects:
(1) when the oil source pressure of an oil pressure system is high, the hydraulic proportional valve outputs a certain set value force to drive the movable sliding table to advance in an idle load manner, and the load of the movable sliding table advancing in the idle load manner is small, the pressure cannot be built up by the upsetting oil cylinder, so that the oil pressure value detected by the pressure sensor is lower than the set value of the proportional valve, the opening degree of the hydraulic proportional valve is enlarged, the output quantity and the pressure of hydraulic oil are increased, and the oil cylinder advancing cavity has high oil pressure when the upsetting oil cylinder advances in the idle load manner. When the upsetting oil cylinder moves backwards, the pressure sensor collects the oil pressure signal of the advancing cavity of the oil cylinder, and when the oil cylinder moves backwards, the pressure signal fed back to the control system by the pressure sensor is very small, so that the output signal size of the controller is increased, the opening degree of the oil pressure proportional valve is increased, and the oil pressure of the retreating cavity of the upsetting oil cylinder is increased.
(2) a hydraulic servo valve is adopted to supply oil to the upsetting welding loading system, and the problem of overhigh oil pressure of an advancing cavity of an upsetting oil cylinder when a sliding table runs in a no-load mode like an oil pressure proportional valve exists.
in the moving sliding table no-load advancing process, the oil pressure of an advancing cavity of the upsetting oil cylinder is too high, so that the influence on the normal operation of a main shaft system is caused, and even equipment faults are caused, and the specific reasons are as follows: in order to ensure the axial bearing capacity of the main shaft system, the main shaft system is provided with a thrust bearing and a thrust bearing array to bear the axial force in the welding process, wherein the thrust bearing is fixedly arranged in the main shaft system, the thrust bearing is arranged in a floating mode, and the bearing capacity is provided by a balance oil cylinder in the main shaft system. The balance oil cylinder is communicated with an advancing cavity of the upsetting oil cylinder, the balance oil cylinder provides bearing capacity for the thrust bearing according to oil pressure provided by the upsetting oil cylinder, and under the action of the balance oil cylinder, the thrust bearing and the thrust bearing are coordinated to meet the bearing requirement of the spindle system on axial welding force. When an oil circuit of the upsetting oil cylinder adopts a hydraulic proportional valve or a hydraulic servo valve, when the moving sliding table moves forward in a no-load way to enable an advancing cavity of the upsetting oil cylinder, namely the oil pressure of the balancing oil cylinder, to be too high, two welded workpieces are not in contact, a thrust bearing is not stressed, and a main shaft axially moves under the action of the balancing oil cylinder, as shown in fig. 1, the thrust bearing of an auxiliary bearing in a main shaft system bears too high axial force to exceed the bearing capacity range of the bearing, so that the bearing is burnt, and equipment failure is caused.
Disclosure of Invention
The utility model aims to solve the device problem that a welding power closed-loop control and open-loop control interact's friction welding device is provided to overcome the not enough that current device exists. The technical scheme of the utility model is that: a friction welding device with the interaction of welding force closed-loop control and open-loop control is composed of a transmission device 1, a main shaft system 2, a main shaft clamp 3, a tailstock clamp 4, a movable sliding table 5, a sliding block 5.1, a lathe bed 6, a linear guide rail 6.1, an upsetting oil cylinder 7, a hydraulic oil source 8, an electro-hydraulic servo valve 9, a control system 10 and a pressure sensor 11; the main shaft system 2 is fixedly arranged on the machine body 6, the upsetting oil cylinder 7 is fixedly arranged on the main shaft system 2, a piston rod of the upsetting oil cylinder 7 is connected with the movable sliding table 5 through a nut, the movable sliding table 5 is fixedly arranged on a sliding block 5.1 through a bolt, the movable sliding table 5 is connected with the machine body 6 through a linear motion pair consisting of a linear guide rail 6.1 and an assembled sliding block 5.1, the upsetting oil cylinder 7 is connected with the movable sliding table 5 through a threaded nut, and the movable sliding table 5 linearly reciprocates along the machine body 6; the tailstock fixture 4 is installed on a movable sliding table 5, a tailstock workpiece is installed in the tailstock fixture 4, a spindle fixture 3 is installed on a spindle system 2, the output end of a transmission device 1 is connected with the spindle system 2, the output end of the spindle system 2 is connected with the spindle fixture 3, the spindle workpiece is installed in the spindle fixture 3, an electro-hydraulic servo valve 9 is installed on a hydraulic oil source 8, hydraulic oil output by the hydraulic oil source 8 is connected with the electro-hydraulic servo valve 9 through a hydraulic valve, an oil outlet A of the electro-hydraulic servo valve 9 is communicated with an advancing cavity of an upsetting oil cylinder 7, an oil outlet A of the electro-hydraulic servo valve 9 is communicated with an oil inlet cavity of a balance oil cylinder in the spindle system 2, an oil return port B of the electro-hydraulic servo valve 9 is communicated with a retreating cavity of the upsetting oil cylinder 7, and an oil outlet A of the electro-.
The working principle of the utility model
the utility model discloses constitute by transmission 1, main shaft system 2, main shaft anchor clamps 3, tailstock anchor clamps 4, removal slip table 5, lathe bed 6, upset hydro-cylinder 7, hydraulic oil source 8, electrohydraulic servo valve 9, control system 10 and pressure sensor 11, can realize the axial friction welding function.
1. The main shaft system 2 is fixedly arranged on the machine body 6, the upsetting oil cylinder 7 is fixedly arranged on the main shaft system, a piston rod of the upsetting oil cylinder 7 is connected with the movable sliding table 5 through a nut, the movable sliding table 5 is connected with the machine body 6 through a linear motion pair formed by a linear guide rail and a sliding block, and the upsetting oil cylinder 7 is driven by hydraulic oil to drag the movable sliding table 5 to do linear reciprocating motion along the machine body 6.
2. The tailstock fixture 4 is arranged on the movable sliding table 5, and when the upsetting oil cylinder 7 drags the movable sliding table 5 to move, the tailstock fixture 4 is dragged to do linear relative motion along the lathe bed 6. During axial friction welding, a tailstock workpiece is arranged in the tailstock fixture 4 and can do linear reciprocating motion along the lathe bed 6 under the dragging of the upsetting oil cylinder 7.
3. The spindle clamp 3 is arranged on the spindle system 2, the transmission device 1 transmits the kinetic energy of the motor to drive the spindle system 2 to rotate, and further drives the spindle clamp 3 to rotate, a spindle workpiece is arranged in the spindle clamp 3, and the kinetic energy of the motor is transmitted under the combined action of the transmission device 1, the spindle system 2 and the spindle clamp 3 to drive the spindle workpiece to rotate.
4. The electro-hydraulic servo valve 9 is installed on a hydraulic oil source 8, hydraulic oil output by the hydraulic oil source 8 is conveyed to the electro-hydraulic servo valve 9 after being subjected to pressure regulation and speed regulation through a hydraulic valve, an oil outlet A of the electro-hydraulic servo valve 9 is communicated with an advancing cavity of the upsetting oil cylinder 7 and an oil inlet cavity of a balance oil cylinder in the main shaft system 2, an oil return port B of the electro-hydraulic servo valve 9 is communicated with a retreating cavity of the upsetting oil cylinder 7, and the electro-hydraulic servo valve 9 beats the hydraulic oil into the advancing cavity or the retreating cavity of the upsetting oil cylinder 7 according to the requirements of a control system 10 to control the action of a piston rod of the upsetting oil cylinder 7.
5. The control system 10 sends a control command and control data to the electro-hydraulic servo valve 9 according to the requirements of the welding process, controls the action of the electro-hydraulic servo valve 9, enables the electro-hydraulic servo valve 9 to output hydraulic oil to the upsetting oil cylinder 7, is provided with a pressure sensor 11 on an oil path A of an oil outlet A of the electro-hydraulic servo valve 9, can acquire the pressure of the oil outlet of the electro-hydraulic servo valve 9 and the pressure of a forward cavity of the upsetting oil cylinder 7 in real time, feeds pressure signals back to the control system 10, and provides feedback signals for controlling the oil pressure of the upsetting oil cylinder 7.
6. Under the drive of the transmission device 1, the spindle system 2 and the spindle clamp 3, the spindle workpiece rotates; under the control and drive of a hydraulic oil source 8, an electro-hydraulic servo valve 9, a control system 10, a pressure sensor 11, an upsetting oil cylinder 7, a movable sliding table 5 and a movable sliding table clamp 4, the tailstock workpiece realizes linear relative motion relative to the lathe bed 6; the rotating spindle workpiece and the linearly moving tailstock workpiece are mutually rubbed under the action of axial welding pressure provided by the upsetting oil cylinder 7, so that axial friction welding can be realized.
The utility model has the advantages of
By adopting the device scheme, the pressure closed-loop control mode and the open-loop control mode are applied to the axial friction welding process, and the following device effects are realized:
Firstly, aiming at an upsetting friction welding loading system formed based on an electro-hydraulic servo valve 9 and an axial friction welding machine spindle system shown in figure 1, the problem that the oil pressure of an advancing cavity (namely an oil inlet cavity of a balance oil cylinder) of an upsetting oil cylinder 7 is too high in the no-load advancing process of a movable sliding table 5 in the axial friction welding process is solved. By effectively controlling the oil pressure of the forward cavity of the upsetting oil cylinder 7 in the no-load forward process, the axial movement of the main shaft of the movable sliding table 5 in the no-load forward process is effectively prevented, so that the condition that the auxiliary bearing in the main shaft system is not overloaded and stressed is avoided, the service life of the bearing is ensured, and the failure rate of equipment is reduced.
And secondly, through the interaction of a pressure open-loop control mode and a closed-loop control mode, the friction welding auxiliary process (the moving sliding table moves forwards and backwards) and the three-stage friction welding process are smoothly carried out, the temperature rise problem of hydraulic oil in the no-load moving sliding table moving forwards and backwards process can be effectively reduced, and the service lives of the electro-hydraulic servo valve 9 and a hydraulic sealing element are prolonged.
And thirdly, the pressure closed-loop control mode is used for the three-stage friction welding process, so that the three-stage welding pressure is accurate and controllable, on one hand, the axial welding force provided by the upsetting oil cylinder 7 is rapidly stepped to the target value of the three-stage friction welding pressure, on the other hand, the pressure is rapidly stabilized, and the welding quality is effectively ensured.
The device effect is realized embodying in friction weld before welding, after-welding auxiliary process and welding process:
1) After the spindle workpiece and the tailstock workpiece are clamped, the upsetting oil cylinder 7 drags the movable sliding table 5 and the tailstock workpiece to move forwards in a pressure open-loop control mode, the control system 10 transmits a pressure open-loop control command and pressure data to the electro-hydraulic servo valve 9, and the electro-hydraulic servo valve 9 opens a fixed opening according to the given pressure data, so that hydraulic oil with certain pressure enters an advancing cavity of the upsetting oil cylinder 7 to drive the movable sliding table 5 to advance. Because the opening of the electro-hydraulic servo valve 9 is fixed, the hydraulic oil pressure of the advancing cavity of the upsetting oil cylinder 7 cannot cause the problem of oil pressure rise caused by no-load advancing of the movable sliding table 5 mentioned in the background device, the oil pressure of the oil inlet cavity of the balance oil cylinder in the main shaft system is controlled within a certain range, an auxiliary bearing cannot bear overhigh axial force, the service life of the main shaft system is further ensured, and the heat production of the hydraulic oil is reduced due to low output oil pressure.
2) After the welding workpiece is tightly jacked and pressure-maintaining is completed, the upsetting oil cylinder 7 drives the movable sliding table 5 to move backwards for a certain distance in a pressure open-loop control mode and then stops, the oil pressure in a backward cavity of the upsetting oil cylinder 7 can be controlled within a certain range, the problem of oil pressure rise of no-load movement in a background device can be solved, and low-pressure oil output by the electro-hydraulic servo valve can reduce the heat production of the hydraulic oil.
3) After the moving sliding table 5 retreats and stops, the transmission device 1 drives the main shaft system 2, the main shaft clamp 3 and the main shaft workpiece to rotate, when the rotating speed of the main shaft reaches a set rotating speed, the upsetting oil cylinder 7 drives the moving sliding table 5 and the tailstock workpiece to advance in a pressure open-loop control mode, before the main shaft workpiece and the tailstock workpiece are not contacted, namely the sliding table advances in a no-load mode, the oil pressure of an advancing cavity of the upsetting oil cylinder keeps a certain fixed value, the oil pressure of the advancing cavity of the upsetting oil cylinder 7 is always controlled within a certain pressure range in the process, the overload problem of the auxiliary bearing is effectively prevented, and the service life of the auxiliary bearing is ensured.
4) In the three-stage friction welding process, pressure closed-loop control is adopted, so that the three-stage welding pressure is accurately controllable, on one hand, the axial welding force provided by the upsetting oil cylinder 7 is rapidly stepped to the target value of the three-stage friction welding pressure, on the other hand, the pressure is rapidly stabilized, and the welding quality is effectively ensured.
5) After the upsetting pressure maintaining is finished, the upsetting oil cylinder 7 is changed from a pressure closed-loop control mode to a pressure open-loop control mode to drive the movable sliding table 5 to retreat, hydraulic oil pressure in the upsetting oil cylinder 7 is controlled within a certain value range, the problem of oil pressure climbing in the retreating process of the movable sliding table 5 is prevented, and the control of the oil pressure oil to generate heat is facilitated.
In three different stages of a preparation stage of a friction welding process, a three-stage friction welding stage and a retreating stage of the welding-finished moving sliding table 5, the upsetting oil cylinder 7 is under the interaction of a pressure open-loop control mode and a pressure closed-loop control mode which are formed by a control system 10, an electro-hydraulic servo valve 9 and a pressure sensor 11. In a pressure open-loop control mode, the electro-hydraulic servo valve 9 opens a fixed opening according to a control command and control data of the control system 10, hydraulic oil with a certain fixed pressure is output to the upsetting oil cylinder 7, the pressure sensor 11 does not participate in open-loop control, the pressure open-loop control mode acts on the no-load advancing, abutting and no-load retreating processes of the movable sliding table, and the oil pressure of the hydraulic oil in the advancing cavity or the retreating cavity of the upsetting oil cylinder 7 is controlled within the fixed pressure range in the no-load advancing and no-load retreating processes of the movable sliding table 5; compared with a pressure open-loop control mode, in the pressure closed-loop control mode, the control system 10 transmits a closed-loop control command and pressure control data to the electro-hydraulic servo valve 9, the electro-hydraulic servo valve 9 adjusts the opening size of the electro-hydraulic servo valve in real time according to the pressure data to enable the pressure of output hydraulic oil to approach to a pressure set value, meanwhile, the pressure sensor 11 feeds back the pressure data of the upsetting oil cylinder 7 to the control system 10 in real time, the control system 10 adjusts the opening of the electro-hydraulic servo valve 9 according to the real-time pressure size of an advancing cavity of the upsetting oil cylinder 7, and pressure closed-loop control is applied to a three-level friction welding. Through the interaction of pressure open-loop control and pressure closed-loop control, the problem of auxiliary bearing overload in the friction welding process based on electro-hydraulic servo valve control is effectively avoided, the problem of heat generation of hydraulic oil is controlled, and the axial friction welding quality is effectively improved.
Drawings
FIG. 1 is a schematic view of a spindle system of a prior art friction welder.
Fig. 2 is a schematic diagram of the present invention.
Detailed Description
As shown in fig. 2, the friction welding device with the interaction of the closed-loop control and the open-loop control of the welding force is composed of a transmission device 1, a spindle system 2, a spindle clamp 3, a tailstock clamp 4, a movable sliding table 5, a bed body 6, an upsetting oil cylinder 7, a hydraulic oil source 8, an electro-hydraulic servo valve 9, a control system 10 and a pressure sensor 11, and the specific implementation mode is as follows:
The main shaft system 2 is fixedly arranged on the machine body 6, the upsetting oil cylinder 7 is fixedly arranged on the main shaft system, a piston rod of the upsetting oil cylinder 7 is connected with the movable sliding table 5 through a nut, the movable sliding table 5 is connected with the machine body 6 through a linear motion pair formed by a linear guide rail and a sliding block, and the upsetting oil cylinder 7 is driven by hydraulic oil to drag the movable sliding table 5 to do linear reciprocating motion along the machine body 6.
The tailstock fixture 4 is arranged on the movable sliding table 5, and when the upsetting oil cylinder 7 drags the movable sliding table 5 to move, the tailstock fixture 4 is dragged to do linear relative motion along the lathe bed 6. During axial friction welding, a tailstock workpiece is arranged in the tailstock fixture 4 and can do linear reciprocating motion along the lathe bed 6 under the dragging of the upsetting oil cylinder 7.
The spindle clamp 3 is arranged on the spindle system 2, the transmission device 1 transmits the kinetic energy of the motor to drive the spindle system 2 to rotate, and further drives the spindle clamp 3 to rotate, a spindle workpiece is arranged in the spindle clamp 3, and the kinetic energy of the motor is transmitted under the combined action of the transmission device 1, the spindle system 2 and the spindle clamp 3 to drive the spindle workpiece to rotate.
The electro-hydraulic servo valve 9 is installed on a hydraulic oil source 8, hydraulic oil output by the hydraulic oil source 8 is conveyed to the electro-hydraulic servo valve 9 after being subjected to pressure regulation and speed regulation through a hydraulic valve, an oil outlet A of the electro-hydraulic servo valve 9 is communicated with an advancing cavity of the upsetting oil cylinder 7 and an oil inlet cavity of a balance oil cylinder in the main shaft system 2, an oil return port B of the electro-hydraulic servo valve is communicated with a retreating cavity of the upsetting oil cylinder 7, and the electro-hydraulic servo valve 9 beats the hydraulic oil into the advancing cavity or the retreating cavity of the upsetting oil cylinder 7 according to the requirement of a control system 10 to control the action of a piston rod of the upsetting oil cylinder 7.
The control system 10 sends a control command and control data to the electro-hydraulic servo valve 9 according to the requirements of the welding process, controls the action of the electro-hydraulic servo valve 9, enables the electro-hydraulic servo valve 9 to output hydraulic oil to the upsetting oil cylinder 7, is provided with a pressure sensor 11 on an oil path A of an oil outlet A of the electro-hydraulic servo valve 9, can acquire the pressure of the oil outlet of the electro-hydraulic servo valve 9 and the pressure of a forward cavity of the upsetting oil cylinder 7 in real time, feeds pressure signals back to the control system 10, and provides feedback signals for controlling the oil pressure of the upsetting oil cylinder 7.
under the drive of the transmission device 1, the spindle system 2 and the spindle clamp 3, the spindle workpiece rotates; under the control and drive of a hydraulic oil source 8, an electro-hydraulic servo valve 9, a control system 10, a pressure sensor 11, an upsetting oil cylinder 7, a movable sliding table 5 and a movable sliding table clamp 4, the tailstock workpiece realizes linear relative motion relative to the lathe bed 6; the rotating spindle workpiece and the linearly moving tailstock workpiece are mutually rubbed under the action of axial welding pressure provided by the upsetting oil cylinder 7, so that axial friction welding can be realized.
A friction welding device with interactive welding force closed-loop control and open-loop control comprises: the device comprises a transmission device 1, a main shaft system 2, a main shaft clamp 3, a tailstock clamp 4, a movable sliding table 5, a lathe bed 6, an upsetting oil cylinder 7, a hydraulic oil source 8, an electro-hydraulic servo valve 9, a control system 10 and a pressure sensor 11; the main shaft system 2 is fixedly arranged on the machine body 6, the upsetting oil cylinder 7 is fixedly arranged on the main shaft system, a piston rod of the upsetting oil cylinder 7 is connected with the movable sliding table 5 through a nut, the movable sliding table 5 is fixedly arranged on a sliding block 5.1 through a bolt and is connected with the machine body 6 through a linear motion pair consisting of a linear guide rail 6.1 and a matched sliding block 5.1, the upsetting oil cylinder 7 is connected with the movable sliding table 5 through a threaded nut, and the movable sliding table 5 makes linear reciprocating motion along the machine body 6; the tailstock fixture 4 is installed on a movable sliding table 5, a tailstock workpiece is installed in the tailstock fixture 4, a spindle fixture 3 is installed on a spindle system 2, the output end of a transmission device 1 is connected with the spindle system 2, the output end of the spindle system 2 is connected with the spindle fixture 3, the spindle workpiece is installed in the spindle fixture 3, an electro-hydraulic servo valve 9 is installed on a hydraulic oil source 8, hydraulic oil output by the hydraulic oil source 8 is connected with the electro-hydraulic servo valve 9 through a hydraulic valve, an oil outlet A of the electro-hydraulic servo valve 9 is communicated with an advancing cavity of an upsetting oil cylinder 7, an oil outlet A of the electro-hydraulic servo valve 9 is communicated with an oil inlet cavity of a balance oil cylinder in the spindle system 2, an oil return port B of the electro-hydraulic servo valve 9 is communicated with a retreating cavity of the upsetting oil cylinder 7, and an oil outlet A of the electro-.
Claims (1)
1. A friction welding device with the interaction of welding force closed-loop control and open-loop control is characterized in that: the device comprises a transmission device (1), a main shaft system (2), a main shaft clamp (3), a tailstock clamp (4), a movable sliding table (5), a sliding block (5.1), a lathe bed (6), a linear guide rail (6.1), an upsetting oil cylinder (7), a hydraulic oil source (8), an electro-hydraulic servo valve (9), a control system (10) and a pressure sensor (11); the main shaft system (2) is fixedly arranged on the machine body (6), the upsetting oil cylinder (7) is fixedly arranged on the main shaft system (2), a piston rod of the upsetting oil cylinder (7) is connected with the movable sliding table (5) through a nut, the movable sliding table (5) is fixedly arranged on the sliding block (5.1) through a bolt, the movable sliding table (5) is connected with the machine body (6) through a linear motion pair consisting of a linear guide rail (6.1) and an assembled sliding block (5.1), the upsetting oil cylinder (7) is connected with the movable sliding table (5) through a threaded nut, and the movable sliding table (5) linearly reciprocates along the machine body (6); the tailstock fixture (4) is installed on a movable sliding table (5), a tailstock workpiece is installed in the tailstock fixture (4), a spindle fixture (3) is installed on a spindle system (2), the output end of a transmission device (1) is connected with the spindle system (2), the output end of the spindle system (2) is connected with the spindle fixture (3), the spindle workpiece is installed in the spindle fixture (3), an electro-hydraulic servo valve (9) is installed on a hydraulic oil source (8), the hydraulic oil source (8) outputs hydraulic oil which is connected with the electro-hydraulic servo valve (9) through a hydraulic valve, an oil outlet A of the electro-hydraulic servo valve (9) is communicated with an advancing cavity of a top forging oil cylinder (7), an oil outlet A of the electro-hydraulic servo valve (9) is communicated with an oil inlet cavity of a balance oil cylinder in the spindle system (2), an oil return port B of the electro-hydraulic servo valve (9) is communicated with a retreating cavity of the top forging oil cylinder (7), and an oil outlet A of the electro-hydraulic servo valve (9) is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920150870.5U CN209792859U (en) | 2019-01-28 | 2019-01-28 | friction welding device with interaction of welding force closed-loop control and open-loop control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920150870.5U CN209792859U (en) | 2019-01-28 | 2019-01-28 | friction welding device with interaction of welding force closed-loop control and open-loop control |
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| CN209792859U true CN209792859U (en) | 2019-12-17 |
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| CN201920150870.5U Withdrawn - After Issue CN209792859U (en) | 2019-01-28 | 2019-01-28 | friction welding device with interaction of welding force closed-loop control and open-loop control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676239A (en) * | 2019-01-28 | 2019-04-26 | 哈尔滨焊接研究院有限公司 | Welding force closed-loop control and the interactive friction welding apparatuses of opened loop control and its friction-welding technique |
-
2019
- 2019-01-28 CN CN201920150870.5U patent/CN209792859U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676239A (en) * | 2019-01-28 | 2019-04-26 | 哈尔滨焊接研究院有限公司 | Welding force closed-loop control and the interactive friction welding apparatuses of opened loop control and its friction-welding technique |
| CN109676239B (en) * | 2019-01-28 | 2024-02-02 | 中国机械总院集团哈尔滨焊接研究所有限公司 | Friction welding device with interaction of welding force closed-loop control and open-loop control and friction welding process thereof |
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Address after: 150028 No. 2077 Innovation Road, Songbei District, Harbin City, Heilongjiang Province Patentee after: China National Machinery Engineering Corporation Harbin Welding Research Institute Co.,Ltd. Address before: 150028 No. 2077 Innovation Road, Songbei District, Harbin City, Heilongjiang Province Patentee before: HARBIN WELDING INSTITUTE Ltd. |
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Granted publication date: 20191217 Effective date of abandoning: 20240202 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191217 Effective date of abandoning: 20240202 |