Automatic assembling equipment and method for automobile hydraulic bushing

Abstract

The invention relates to the technical field of automobile manufacturing, in particular to an automatic assembling device and method for an automobile hydraulic bushing. Comprising a damping liquid tank, a lower stage bedplate, an upper stage bedplate fixedly installed on the lower stage bedplate, a first positioning table assembly movably installed on the lower stage bedplate, a second positioning table assembly fixedly installed on the lower stage bedplate, a steering assembly movably installed on the upper stage bedplate and a third positioning table assembly installed on the steering assembly. The steering assembly is used for driving the third positioning table assembly to rotate. The defoaming assembly and the vertical press-fitting assembly are integrated together, press-fitting of the outer pipe can be rapidly carried out after defoaming treatment, compared with the prior art, damping liquid cannot be disturbed by multiple moving parts in a large range, the situation that the liquid level of the damping liquid fluctuates is reduced, workpieces are effectively prevented from being exposed out of the liquid level of the damping liquid in the assembling process, and the assembly efficiency is improved. And the assembling quality is influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile manufacturing, and in particular to an automatic assembly device and method for automobile hydraulic bushings. Background Art

[0002] The hydraulic bushing is composed of an elastic buffer, a flow channel plate and an outer tube. After the elastic buffer and the flow channel plate are assembled, a liquid storage cavity of the hydraulic bushing is formed. The flow channel is designed in the flow channel plate. The liquid storage cavity and the flow channel are filled with damping fluid. Therefore, when the bushing is impacted, the damping fluid will flow in the flow channel, and the impact energy will be absorbed to eliminate vibration. The existing hydraulic bushing assembly is mainly divided into wet assembly or dry assembly. Hydraulic bushings without filling holes are not suitable for dry filling.

[0003] The wet assembly in the prior art is a semi-automatic single-station assembly, which generally requires manual operation to put the outer tube part on the elastic buffer and then immerse it in liquid for assembly. This assembly method is prone to generate bubbles in the outer tube and elastic buffer fitting area, resulting in abnormal noise when the hydraulic bushing is working, so it is necessary to defoam each component before assembly. The existing Chinese invention patent with announcement number CN116475754 A discloses a hydraulic bushing underwater assembly device, which can defoam the workpiece during the wet assembly process. However, the assembly equipment adopts a structure similar to multiple assembly robots, which repeatedly move, push and pull under the damping liquid during assembly, which can easily cause large-scale and large-amplitude fluctuations in the damping liquid, and easily cause the workpiece to accidentally expose the liquid surface. In addition, the structure of multiple assembly robots has high manufacturing costs and is relatively complicated to operate.

[0004] Therefore, in response to the above problems, an automated assembly equipment for hydraulic bushings based on wet assembly can be designed to simplify the assembly robot structure, cooperate with the assembly table of movable workpieces, reduce the disturbance to the damping fluid, and reduce the manufacturing and operating costs of the equipment. Summary of the invention

[0005] In order to overcome the problem that during wet assembly of hydraulic bushings, the reciprocating movement of multiple group leader robots causes great disturbance to the damping fluid, which easily exposes the workpiece outside the damping fluid surface and affects the assembly quality.

[0006] The technical solution of the present invention is: an automatic assembly equipment for automobile hydraulic bushings, including a damping liquid tank, a lower table, an upper table fixedly mounted on the lower table, a No. 1 positioning table assembly movably mounted on the lower table, a No. 2 positioning table assembly fixedly mounted on the lower table, a steering assembly movably mounted on the upper table, and a No. 3 positioning table assembly mounted on the steering assembly, wherein the No. 1 positioning table assembly is used to install the elastic buffer of the hydraulic bushing, the No. 2 positioning table assembly is used to install the flow channel plate of the hydraulic bushing, the No. 3 positioning table assembly is used to install the outer tube of the hydraulic bushing, the steering assembly is used to drive the No. 3 positioning table assembly to rotate, the lower table, the upper table, the No. 1 positioning table assembly, the No. 2 positioning table assembly, the No. 3 positioning table assembly, and the No. 3 positioning table assembly are used to install the outer tube of the hydraulic bushing. The positioning table assembly and the third positioning table assembly are both arranged in the damping liquid tank; a liquid pump and a transposition assembly are installed on the lower table plate, the liquid pump is used to output power to the transposition assembly, and the transposition assembly is used to drive the No. 1 positioning table assembly to move; a top plate is installed on the damping liquid tank, a lifting assembly is installed on the top plate, a defoaming assembly is installed on the lifting assembly, the liquid pump is used to output power to the lifting assembly, the lifting assembly is used to drive the defoaming assembly to move in the vertical direction, and the defoaming assembly is used to spray damping liquid; a horizontal press-fitting assembly is installed on the top plate, the horizontal press-fitting assembly is used to movably install the flow channel plate, a vertical press-fitting assembly is installed on the defoaming assembly, the liquid pump is used to output power to the vertical press-fitting assembly, and the vertical press-fitting assembly is used to movably install the outer tube.

[0007] Preferably, a No. 1 slide groove is provided on the lower platform, and the No. 1 positioning platform assembly can move axially along the No. 1 slide groove. The No. 1 positioning platform assembly includes a No. 1 platform body arranged on the lower platform, a positioning column fixedly connected to the No. 1 platform body, a No. 1 slider fixedly connected to the No. 1 platform body, and a No. 1 contact switch installed on the No. 1 slider. Another No. 1 contact switch is installed on the No. 1 slide groove, and an elastic buffer is installed on the No. 1 platform body. The positioning column is adapted to the middle hole on the elastic buffer. When the No. 1 slider moves until the two No. 1 contact switches are in contact and energized, a signal is sent to the control unit of the liquid pump.

[0008] Preferably, the shifting assembly includes a horizontal drive assembly and a No. 2 oil circuit channel installed on the lower platform. The liquid pump inputs the damping liquid into the horizontal drive assembly through the No. 2 oil circuit channel. The horizontal drive assembly is used to drive the No. 1 positioning platform assembly to move in the horizontal direction; the horizontal drive assembly includes a No. 2 cylinder cover installed on the lower platform and a No. 2 push-pull rod movably connected in the No. 2 cylinder cover, and the No. 2 push-pull rod is fixedly connected to the No. 1 slider; the No. 2 oil circuit channel includes a No. 2 positive injection pipe and a No. 2 positive discharge pipe fixedly connected to one end of the No. 2 cylinder cover, and a No. 2 positive injection valve installed on the No. 2 positive injection pipe. , No. 2 forward drain valve installed on No. 2 forward drain pipe, No. 2 reverse injection pipe and No. 2 reverse drain pipe fixedly connected to the other end of No. 2 cylinder cover, No. 2 reverse injection valve fixedly installed on No. 2 reverse injection pipe and No. 2 reverse drain valve fixedly installed on No. 2 reverse drain pipe; when the liquid pump injects damping liquid into No. 2 cylinder cover through No. 2 forward injection pipe, No. 2 push-pull rod drives No. 1 positioning platform assembly to move to directly below the defoaming assembly; when the liquid pump injects damping liquid into No. 2 cylinder cover through No. 2 reverse injection pipe, No. 2 push-pull rod drives No. 1 positioning platform assembly to move away from directly below the defoaming assembly.

[0009] Preferably, the No. 2 positioning platform assembly includes a No. 2 platform body installed on the lower platform, a positioning pin movably connected to the No. 2 platform body, a support plate fixedly connected to the positioning pin, a No. 1 spring installed on the support plate, a No. 1 tension sensor installed on the No. 1 spring and a No. 2 contact switch installed on the support plate. The positioning pin is used to limit the flow channel plate, and the positioning pin can move in the vertical direction. The No. 1 tension sensor is used to detect the tension value of the No. 1 spring. Another No. 2 contact switch is installed in the No. 2 platform body. When the positioning pin moves until the two No. 2 contact switches are in contact and energized, a signal is sent to the horizontal press-fit assembly.

[0010] Preferably, the steering assembly includes a steering platform movably connected to the upper platform, a No. 1 motor installed on the upper platform, a No. 1 gear fixedly connected to the output end of the No. 1 motor, a No. 2 gear fixedly connected to the steering platform, a No. 3 gear fixedly connected to the No. 1 gear, a torsion spring installed on the No. 1 gear and a torque sensor installed on the upper platform, the No. 1 gear and the No. 2 gear are meshed, the No. 1 motor is used to drive the No. 1 gear and the No. 3 gear to rotate, the torsion spring is connected to the torque sensor, the torque sensor is used to detect the torque value of the torsion spring and send a signal to the control unit of the liquid pump; the No. 3 positioning platform assembly includes a No. 3 platform body installed on the steering platform, a base arranged above the No. 3 platform body, a sleeve fixedly connected to the No. 3 platform body, a sliding rod fixedly connected to the base, a No. 2 spring installed on the base and a No. 2 tension sensor installed on the No. 3 platform body, one end of the No. 2 tension sensor is connected to the No. 2 spring, the No. 2 tension sensor is used to detect the tension value of the No. 2 spring, and send a signal to the control unit of the liquid pump and the control unit of the No. 1 motor.

[0011] Preferably, the lifting assembly includes a vertical drive assembly and a No. 2 oil channel installed on the top plate, and the liquid pump inputs the damping liquid into the vertical drive assembly through the No. 2 oil channel. The vertical drive assembly is used to drive the defoaming assembly to move vertically; the vertical drive assembly includes a No. 1 cylinder cover and a fixed frame installed on the top plate, a No. 1 push-pull rod movably connected to the No. 1 cylinder cover, a push-pull plate fixedly connected to the No. 1 push-pull rod, a guide column fixedly connected to the push-pull plate, a support plate fixedly connected to the guide column, a No. 3 spring fixedly connected to the push-pull plate and a No. 3 tension sensor installed on the fixed frame, and the No. 1 push-pull rod is used to drive the push-pull rod. The pull plate, guide column and support plate move in the vertical direction, one end of the No. 3 spring is fixedly connected to the No. 3 tension sensor, the No. 3 tension sensor is used to detect the tension value of the No. 3 spring, and send a signal to the control unit of the liquid pump and the horizontal pressing assembly; the No. 2 oil circuit includes a No. 1 positive injection pipe fixedly connected to one end of the No. 1 cylinder cover, a No. 1 positive injection valve installed on the No. 1 positive injection pipe, a No. 1 positive discharge pipe fixedly connected to the No. 1 positive injection pipe, a No. 1 positive discharge valve installed on the No. 1 positive discharge pipe, a No. 1 reverse injection pipe fixedly connected to the other end of the No. 1 cylinder cover, and a No. 1 reverse injection pipe installed on the No. 1 reverse injection pipe. A reverse injection valve, a reverse discharge pipe No. 1 fixedly connected to the reverse injection pipe No. 1, a reverse discharge valve No. 1 installed on the reverse discharge pipe No. 1, the forward injection pipe No. 1 and the reverse injection pipe No. 1 are both connected to the output end of the liquid pump; when the liquid pump injects damping liquid into the No. 1 cylinder cover through the forward injection pipe No. 1, the push-pull rod No. 1 drives the carrier plate to move downward; when the liquid pump injects damping liquid into the No. 1 cylinder cover through the reverse injection pipe No. 1, the push-pull rod No. 1 drives the carrier plate to move upward; the defoaming component includes a spray component and a No. 3 oil channel installed on the carrier plate, the liquid pump inputs the damping liquid into the spray component through the No. 3 oil channel, and the carrier plate is used The invention is used to drive the liquid spraying assembly to move vertically; the liquid spraying assembly includes a cavity platform fixedly connected to the support plate, a main nozzle installed in the middle of the lower end of the cavity platform and a plurality of auxiliary nozzles installed around the lower end of the cavity platform, and a plurality of spray holes are provided on the main nozzle and the auxiliary nozzle; the No. 3 oil passage includes a No. 3 liquid injection pipe fixedly connected to the cavity platform at one end, a No. 3 liquid injection valve and a flow meter installed on the No. 3 liquid injection pipe, the other end of the No. 3 liquid injection pipe is connected to the output end of the liquid pump, and the liquid pump inputs the damping liquid into the cavity platform through the No. 3 liquid injection pipe, and the flow meter is used to detect the flow of the damping liquid through the No. 3 liquid injection pipe and send a signal to the control unit of the liquid pump.

[0012] Preferably, the horizontal pressing assembly includes a pushing assembly installed on the top plate and a clamping assembly installed on the pushing assembly, the pushing assembly is used to move the flow channel plate in a horizontal straight line direction, and the clamping assembly is used to clamp the flow channel plate; the pushing assembly includes a track installed on the top plate, a moving machine slidably installed on the track, a No. 2 slide groove opened on the top plate, a No. 2 slider movably connected in the No. 2 slide groove, a suspension rod fixedly connected to the No. 2 slider, a back plate fixedly connected to the suspension rod, a directional rod installed in the No. 2 slide groove, a No. 4 spring with one end connected to the No. 2 slider and a No. 4 tension sensor installed in the No. 2 slide groove, the other end of the No. 4 spring is connected to the No. 4 tension sensor, the moving machine is fixedly connected to the No. 2 slider, and the moving machine is used to drive the No. 2 slider along the No. 2 slide groove and The directional rod moves axially, and the No. 4 tension sensor is used to detect the tension value of the No. 4 spring and send a signal to the control unit of the liquid pump; the fixing assembly includes a No. 3 slide groove opened on the back plate, a No. 2 motor installed on the back plate, a No. 2 screw movably connected in the No. 3 slide groove, two No. 3 sliders threadedly connected to the No. 2 screw, a support rod fixedly connected to the No. 3 slider and a block installed on the support rod, one end of the No. 2 screw is fixedly connected to the output end of the No. 2 motor, the No. 2 motor is used to drive the No. 2 screw to rotate, and the No. 2 screw is used to drive the No. 3 slider to move along its axial direction, when the two No. 3 sliders move relative to each other, the block approaches the flow channel plate until it is embedded in the connecting groove of the flow channel plate; when the two No. 3 sliders move in opposite directions, the block moves out of the connecting groove of the flow channel plate.

[0013] Preferably, the vertical pressing assembly includes a secondary vertical driving assembly installed on the spray assembly, a clamping locking assembly installed on the secondary vertical driving assembly and a No. 4 oil channel, the liquid pump inputs the damping liquid into the secondary vertical driving assembly through the No. 4 oil channel, and the secondary vertical driving assembly is used to drive the clamping locking assembly to move in the vertical direction; the secondary vertical driving assembly includes a No. 3 cylinder cover installed on the cavity platform, a No. 3 push-pull rod movably connected in the No. 3 cylinder cover, an inner pressure piece fixedly connected to the No. 3 push-pull rod, a connecting frame fixedly connected around the inner pressure piece and an outer pressure piece fixedly connected to the connecting frame, The frame passes through two adjacent auxiliary nozzles, and the No. 3 push-pull rod is used to drive the inner pressure piece and the outer pressure piece to move vertically; the clamping and locking assembly includes a gear ring movably connected to the outer pressure piece, a No. 3 motor installed on the outer pressure piece, a No. 4 gear installed on the output end of the No. 3 motor, an ear plate fixedly connected to the outer pressure piece, a clamping arm movably connected to the ear plate, a driven bevel gear fixedly connected to the clamping arm, a No. 5 gear movably connected to the outer pressure piece, and an active bevel gear fixedly connected to the No. 5 gear, the No. 4 gear is meshed with the gear ring, the No. 5 gear is meshed with the gear ring, and the active bevel gear is meshed with the adjacent driven bevel gear The gear ring is used to drive the fifth gear and the active bevel gear to rotate, and the active bevel gear is used to drive the driven bevel gear and the clamp arm to rotate. When the clamp arm rotates downward, the outer tube is clamped, and when the clamp arm rotates upward, the outer tube is released; the fourth oil passage includes a fourth positive injection pipe fixedly connected to one end of the third cylinder cover, a fourth positive injection valve installed on the fourth positive injection pipe, a fourth positive discharge pipe fixedly connected to the fourth positive injection pipe, a fourth positive discharge valve installed on the fourth positive discharge pipe, and a fixedly connected A No. 4 reverse injection pipe connected to the other end of the No. 3 cylinder cover, a No. 4 reverse injection valve installed on the No. 4 reverse injection pipe, a No. 4 reverse discharge pipe fixedly connected to the No. 4 reverse injection pipe and a No. 4 reverse discharge valve installed on the No. 4 reverse discharge pipe, a No. 4 forward injection pipe and a No. 4 reverse injection pipe are all connected to the output end of the liquid pump; when the liquid pump injects damping liquid into the No. 3 cylinder cover through the No. 4 forward injection pipe, the No. 3 push-pull rod drives the inner pressure plate and the outer pressure plate to move downward; when the liquid pump injects damping liquid into the No. 3 cylinder cover through the No. 4 reverse injection pipe, the No. 3 push-pull rod drives the inner pressure plate and the outer pressure plate to move upward.

[0014] Preferably, a transmission assembly is installed on the No. 2 positioning platform assembly, and the transmission assembly is used to drive the positioning pin to move in the vertical direction. The transmission assembly includes a secondary transmission gear and a driven gear movably connected to the No. 2 platform body, a middle column fixedly connected to the lower end of the secondary transmission gear, a primary transmission gear fixedly connected to the middle column, an outer gear ring meshing with the primary transmission gear, a No. 1 screw fixedly connected to the driven gear, a matching rod fixedly connected to the upper end of the secondary transmission gear and a paddle installed on the matching rod. A through groove is opened on the No. 2 platform body, the outer gear ring is movably connected to the damping fluid tank, the outer gear ring is meshed with the No. 3 gear, the No. 3 gear is used to drive the outer gear ring to rotate, the outer gear ring is used to drive the primary transmission gear and the secondary transmission gear to rotate, the secondary transmission gear is used to drive the driven gear and No. 1 screw to rotate, the support plate is threadedly connected to the No. 1 screw, the No. 1 screw is used to drive the support plate to move in the vertical direction, and the paddle is used to paddle the damping fluid when it rotates.

[0015] An automated assembly method for automobile hydraulic bushings, using the automated assembly equipment for automobile hydraulic bushings as described above, comprises the following steps: S1: The elastic buffer, flow channel plate and outer tube of the hydraulic bushing are sent to the damping fluid in the damping fluid tank by the feeder, and are respectively sent to the No. 1 platform body, the No. 2 platform body and the pedestal to prepare for assembly; S2: Start the liquid pump, connect the No. 2 oil channel, and open the No. 2 forward injection valve and the No. 2 reverse discharge valve. The other valve bodies are all in the closed state. The liquid pump injects the damping liquid into the No. 2 cylinder cover through the No. 2 forward injection pipe. The damping liquid pushes the No. 2 push-pull rod to move to one side of the upper platform. At the same time, the original damping liquid in the No. 2 cylinder cover is discharged into the damping liquid tank through the No. 2 reverse discharge pipe. The No. 2 push-pull rod drives the No. 1 slider to slide along the No. 1 slide groove until the No. 1 contact switch is energized. At this time, the No. 1 platform and the elastic buffer thereon are driven to the bottom of the defoaming component. The No. 1 contact switch sends a signal to the control unit of the liquid pump and closes the No. 2 forward injection valve and the No. 2 reverse discharge valve. S3: After receiving the signal from the No. 1 contact switch, the control unit of the liquid pump disconnects the No. 2 oil channel and connects the No. 1 oil channel, opens the No. 1 forward injection valve and the No. 1 reverse discharge valve, and the liquid pump injects the damping liquid into the No. 1 cylinder cover through the No. 1 forward injection pipe. The damping liquid pushes the No. 1 push-pull rod to move downward. At the same time, the original damping liquid in the No. 1 cylinder cover is discharged into the damping liquid tank through the No. 1 reverse discharge pipe. The No. 1 push-pull rod drives the push-pull plate, guide column and bearing plate to move downward. At the same time, the No. 3 spring is deformed and extended. When the No. 3 tension sensor detects When the deformation of the No. 3 spring reaches the threshold value K1, a signal is sent to the control unit of the liquid pump to stop pumping and close the No. 1 forward injection valve and the No. 1 reverse discharge valve, and a signal is also sent to the No. 2 motor on the horizontal press-fit assembly. At this time, the defoaming assembly and the vertical press-fit assembly move down to their positions, and the inner pressing sheet is pressed on the upper end of the elastic buffer to prevent the elastic buffer from moving during defoaming. The No. 2 motor drives the No. 2 screw to rotate, causing the No. 3 slider to move relatively until the block is inserted into the connection groove of the corresponding flow channel plate, locking the flow channel plate to prevent the flow channel plate from moving during defoaming. S4: After receiving the signal sent by the No. 3 tension sensor, the control unit of the liquid pump disconnects the No. 2 oil channel and connects the No. 3 oil channel, opens the No. 3 injection valve, and the liquid pump injects the damping liquid into the cavity through the No. 3 injection pipe, and finally ejects it from the nozzle holes on the main nozzle and the auxiliary nozzle, acting on the elastic buffer and the flow channel plates on both sides to defoam. After the flow meter detects that the injection flow reaches the threshold value L1, it sends a signal to the control unit of the liquid pump and closes the No. 3 injection valve; S5: After receiving the signal from the flow meter, the control unit of the liquid pump disconnects the No. 3 oil channel and reconnects the No. 1 oil channel, opens the No. 1 reverse injection valve and the No. 1 forward discharge valve, and the liquid pump injects the damping liquid into the No. 1 cylinder cover through the No. 1 reverse injection pipe. The damping liquid pushes the No. 1 push-pull rod to move upward. At the same time, the original damping liquid in the No. 1 cylinder cover is discharged into the damping liquid tank through the No. 1 forward discharge pipe. The No. 1 push-pull rod drives the push-pull plate, guide column and support plate to move up. At the same time, the deformation of the No. 3 spring is restored. When the No. 3 tension sensor detects that the No. 3 spring is When the spring tension value returns to zero, a signal is sent to the control unit of the liquid pump to stop pumping and close the No. 1 reverse injection valve and the No. 1 forward discharge valve. At this time, the defoaming component and the vertical press-fitting component return to their initial positions. At the same time, the No. 3 tension sensor also sends a signal to the No. 1 motor on the steering component. The No. 1 motor drives the No. 1 gear to rotate. Through the meshing transmission of the No. 1 gear and the No. 2 gear, the steering platform is controlled to rotate to the top of the elastic buffer. The torsion spring is deformed, and the torque sensor detects that the torsion spring torque reaches the threshold value, and sends a signal to the control unit of the liquid pump. S6: During the rotation of the turning platform, the meshing transmission of the No. 3 gear and the outer gear ring outputs power to the primary transmission gear, which in turn transmits power upward to the secondary transmission gear and the paddle. During the rotation of the paddle, the damping fluid is stirred, and the wave force of the damping fluid is transmitted upward to the flow channel plate through the through groove, and the local dead corner is defoamed twice. At the same time, the No. 1 screw rotates, and the support plate is driven to fall through the thread transmission, and the No. 1 spring is deformed. After the No. 1 tension sensor detects that the deformation of the No. 1 spring reaches the threshold, it sends a signal to the mobile machine control unit in the horizontal press assembly; S7: The mobile machine starts after receiving the signal transmitted by the No. 1 tension sensor, moves along the track, and drives the flow channel plate clamped and fixed by the block to move toward the elastic buffer through the suspension rod and the back plate, until it is clamped on the elastic buffer to complete the assembly. At this time, the No. 2 slider moves to the end of the No. 2 slide slot, and the No. 4 tension sensor detects that the No. 4 spring is compressed to a threshold value, and sends a signal to the No. 2 motor on the horizontal press assembly. The No. 2 motor drives the No. 2 screw to rotate, causing the No. 3 slider to move in the opposite direction, until the block leaves the corresponding connection slot of the flow channel plate, releasing the flow channel plate, and the mobile machine moves in the opposite direction to reset; S8: After the liquid pump receives the signal sent by the torque sensor in S5, the No. 1 forward injection valve and the No. 1 reverse discharge valve are reopened, and the liquid pump injects the damping liquid into the No. 1 cylinder cover through the No. 1 forward injection pipe. The damping liquid pushes the No. 1 push-pull rod to move downward. At the same time, the original damping liquid in the No. 1 cylinder cover is discharged into the damping liquid tank through the No. 1 reverse discharge pipe. The No. 1 push-pull rod drives the push-pull plate, the guide column and the bearing plate to move downward. At the same time, the No. 3 spring is deformed and extended. When the No. 3 tension sensor detects that the deformation of the No. 3 spring reaches the threshold value K2, a signal is sent to the control unit of the liquid pump to stop pumping and close the No. 1 forward injection valve and the No. 1 reverse discharge valve. At this time, the main nozzle and the auxiliary nozzle both enter the outer tube; S9: After the control unit of the liquid pump receives the signal sent by the No. 3 tension sensor in S8, the No. 1 oil channel is disconnected, and the No. 3 oil channel is reconnected, and the No. 3 injection valve is opened. The liquid pump injects the damping liquid into the cavity platform through the No. 3 injection pipe, and finally ejects it from the nozzle holes on the main nozzle and the auxiliary nozzle, acting on the inner wall of the outer tube to defoam. After the flow meter detects that the injection flow reaches the threshold value L2, it sends a signal to the control unit of the liquid pump and the vertical press-fit assembly, and closes the No. 3 injection valve; S10: After the control unit of the liquid pump in S9 receives the signal sent by the flow meter, the No. 3 oil channel is disconnected and the No. 4 oil channel is connected, the No. 4 forward injection valve and the No. 4 reverse discharge valve are opened, and the liquid pump injects the damping liquid into the No. 3 cylinder cover through the No. 4 forward injection pipe. The damping liquid pushes the No. 3 push-pull rod to move downward. At the same time, the original damping liquid in the No. 3 cylinder cover is discharged into the damping liquid tank through the No. 4 reverse discharge pipe. The No. 3 push-pull rod drives the inner and outer pressure plates to move downward. At the same time, the No. 3 motor is started, and the power is output to the active bevel gear through the meshing transmission of the No. 4 gear, the gear ring, and the No. 5 gear, thereby driving the clamp arm on the driven bevel gear to rotate downward to clamp the outer tube; S11: When the inner pressure plate and the outer pressure plate move downward and press the pedestal, the No. 2 spring is deformed. After the No. 2 tension sensor detects that the deformation of the No. 2 spring reaches the threshold, it sends a signal to the control unit of the liquid pump, closes the No. 4 forward injection valve and the No. 4 reverse discharge valve, and opens the No. 4 reverse injection valve and the No. 4 forward discharge valve. The liquid pump injects the damping liquid into the No. 3 cylinder cover through the No. 4 reverse injection pipe. The damping liquid pushes the No. 3 push-pull rod to move upward. At the same time, the original damping liquid in the No. 3 cylinder cover is discharged into the damping liquid tank through the No. 4 forward discharge pipe. The No. 3 push-pull rod drives the inner pressure plate, the outer pressure plate and the fixed outer tube to move up a distance, and the No. 2 spring recovers. After the No. 2 tension sensor detects that the deformation of the No. 2 spring returns to zero, it sends a signal to the control unit of the liquid pump and the control unit of the No. 1 motor; S12: After receiving the signal from the No. 2 tension sensor, the control unit of the liquid pump and the control unit of the No. 1 motor stop injecting liquid into the No. 3 cylinder cover, and the No. 1 motor drives the turning platform to rotate and reset, and the deformation of the torsion spring is restored. After the torque sensor detects that the deformation of the torsion spring has returned to zero, it sends a signal to the control unit of the liquid pump, and the No. 4 reverse injection valve and the No. 4 forward discharge valve are closed, and the No. 4 forward injection valve and the No. 4 reverse discharge valve are reopened. The liquid pump injects the damping liquid into the No. 3 cylinder cover through the No. 4 forward injection pipe, and the damping liquid pushes the No. 3 push-pull rod to move downward, and the fixed outer tube is pressed onto the flow channel plate of the assembled elastic buffer to complete the assembly.

[0016] Beneficial effects of the present invention: 1. The defoaming component and the vertical press-fitting component are integrated together. After the defoaming treatment, the outer tube can be quickly press-fitted. Compared with the existing technology, there will be no large-scale disturbance of the damping fluid by multiple moving parts, which reduces the fluctuation of the damping fluid level and effectively avoids the problem that the workpiece is exposed outside the damping fluid level during assembly, affecting the assembly quality; 2. By moving the No. 1 positioning platform assembly, the assembly distance between the elastic buffer and the flow channel plate and the outer tube is shortened, and the movement range of the horizontal press-fit assembly, the defoaming assembly and the vertical press-fit assembly is further reduced, thereby reducing the fluctuation of the damping liquid level; 3. Through the cooperation of the vertical press-fit assembly and the defoaming assembly, the workpiece can be pressed from top to bottom when defoaming the elastic buffer and the outer tube to avoid the workpiece from moving due to the jet; 4. The steering assembly drives the No. 3 positioning platform assembly to rotate into place to control the extension and retraction of the positioning pin, which can simultaneously release the horizontal locking effect of the manifold plate. Compared with the existing technology, when assembling the manifold plate, there is no need to use a manipulator to lift the manifold plate, and it can be directly moved horizontally and pressed. This not only reduces the disturbance to the damping fluid, but also makes the assembly faster; 5. The power of the No. 3 positioning table assembly driven to rotate into place is output to the paddle through the steering assembly, which can stir the damping fluid around the flow channel plate, and transmit the wave force of the damping fluid to the flow channel plate through the through groove, further eliminating the bubbles that may exist in the local dead corners of the flow channel plate; 6. The naturally filled damping fluid of wet assembly is used as the hydraulic driving medium of each functional component, and the damping fluid tank is used as a liquid storage container to make full use of resources. Compared with other hydraulic driving methods, it is cleaner and has no risk of leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The first stereoscopic structural diagram of the automobile hydraulic bushing automatic assembly equipment of the present invention is shown; Figure 2 The second stereoscopic structural schematic diagram of the automobile hydraulic bushing automatic assembly equipment of the present invention is shown; Figure 3 The front section structure schematic diagram of the automobile hydraulic bushing automatic assembly equipment of the present invention is shown; Figure 4 The figure shows a schematic diagram of the side section structure of the automatic assembly equipment for automobile hydraulic bushings of the present invention; Figure 5 Shown is a schematic diagram of the upper structure of the lower platen and the upper platen of the automobile hydraulic bushing automatic assembly equipment of the present invention; Figure 6 Shown is a schematic diagram of the lower structure of the lower platen and the upper platen of the automobile hydraulic bushing automatic assembly equipment of the present invention; Figure 7 Shown is a schematic diagram of the structure of the No. 1 positioning platform assembly of the automobile hydraulic bushing automatic assembly equipment of the present invention; Figure 8 Shown is a schematic diagram of the transmission assembly structure of the automobile hydraulic bushing automatic assembly equipment of the present invention; Fig. 9 Shown is a schematic diagram of the structure of the vertical drive assembly and the liquid spray assembly of the automobile hydraulic bushing automatic assembly equipment of the present invention; Fig.10The first structural schematic diagram of the secondary vertical drive assembly and the clamping and locking assembly of the automobile hydraulic bushing automated assembly equipment of the present invention is shown; Fig.11 The second structural schematic diagram of the secondary vertical drive assembly and the clamping lock assembly of the automobile hydraulic bushing automatic assembly equipment of the present invention is shown; Fig.12 The automatic assembly equipment of automobile hydraulic bushings of the present invention is shown Figure 1 The enlarged structural diagram at A in the middle; Fig.13 The automatic assembly equipment of automobile hydraulic bushings of the present invention is shown Figure 1 The enlarged structural diagram at B in the middle; Fig.14 The automatic assembly equipment of automobile hydraulic bushings of the present invention is shown Figure 2 The enlarged structural diagram at C in the middle; Fig.15 The automatic assembly equipment of automobile hydraulic bushings of the present invention is shown Figure 3 The enlarged structural diagram at D in the middle; Fig.16 The automatic assembly equipment of automobile hydraulic bushings of the present invention is shown Figure 3 The enlarged structural diagram at E in the middle; Fig.17 The automatic assembly equipment of automobile hydraulic bushings of the present invention is shown Figure 4 The enlarged structural diagram at F in the middle; Fig.18 The automatic assembly equipment of automobile hydraulic bushings of the present invention is shown Figure 4 Enlarged structural diagram at G in the middle.

[0018] Description of the accompanying drawings: 1, lower platform; 2, upper platform; 7, top plate; 9, liquid pump; 17, elastic buffer; 18, flow channel plate; 19, outer tube; 301, platform body No. 1; 302, positioning column; 303, slider No. 1; 304, contact switch No. 1; 305, slide groove No. 1; 401, platform body No. 2; 402, positioning pin; 403, support plate; 404, spring No. 1; 405, tension sensor No. 1; 406, contact switch No. 2; 501, steering platform; 502, motor No. 1; 503, gear No. 1; 504, gear No. 2; 505, gear No. 3; 506, torsion spring; 507, torque sensor; 601, platform body No. 3; 602, platform; 603, sleeve; 604, slide bar; 605 , No. 2 spring; 606, No. 2 tension sensor; 801, No. 1 barrel cover; 802, No. 1 push-pull rod; 803, push-pull plate; 804, guide column; 805, support plate; 806, cavity platform; 807, main nozzle; 808, auxiliary nozzle; 809, fixing frame; 810, No. 3 spring; 811, No. 3 tension sensor; 1001, No. 2 barrel cover; 1002, No. 2 push-pull rod; 1003, No. 2 forward injection pipe; 1004, No. 2 forward injection valve; 1005, No. 2 reverse discharge pipe; 1006, No. 2 reverse discharge valve; 1007, No. 2 reverse injection pipe; 1008, No. 2 reverse injection valve; 1009, No. 2 forward discharge pipe; 1010, No. 2 forward discharge valve; 1101, No. 1 forward injection pipe; 1102, No. 1 positive injection valve; 1103, No. 1 positive discharge pipe; 1104, No. 1 positive discharge valve; 1105, No. 1 reverse injection pipe; 1106, No. 1 reverse injection valve; 1107, No. 1 reverse discharge pipe; 1108, No. 1 reverse discharge valve; 1201, No. 3 injection pipe; 1202, No. 3 injection valve; 1203, flow meter; 1301, outer gear ring; 1302, primary transmission gear; 1303, middle column; 1304, secondary transmission gear; 1305, driven gear; 1306, No. 1 screw; 1307, matching rod; 1308, paddle; 1309, through groove; 1401, track; 1402, mobile machine; 1403, No. 2 slide; 1404, No. 2 slide block; 1405 , suspension rod; 1406, back plate; 1407, No. 3 slide; 1408, No. 2 motor; 1409, No. 2 screw; 1410, No. 3 slider; 1411, support rod; 1412, block; 1413, directional rod; 1414, No. 4 spring; 1415, No. 4 tension sensor; 1501, No. 3 cylinder cover; 1502, No. 3 push-pull rod; 1503, inner pressure plate; 1504, connecting frame; 1505, outer pressure plate; 1506, gear ring; 1507, No. 3 motor; 1508, No. 4 gear; 1509, ear plate; 1510, clamp arm; 1511, driven bevel gear; 1512, No. 5 gear; 1513, driving bevel gear; 1601, No. 4 positive injection pipe; 1602, No. 4 positive injection valve;1603, No. 4 positive discharge pipe; 1604, No. 4 positive discharge valve; 1605, No. 4 reverse injection pipe; 1606, No. 4 reverse injection valve; 1607, No. 4 reverse discharge pipe; 1608, No. 4 reverse discharge valve. ; DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] See also Figure 1-Figure 18The present invention provides an embodiment: an automatic assembly equipment for automobile hydraulic bushings, including a damping liquid tank, a lower table 1, an upper table 2 fixedly mounted on the lower table 1, a No. 1 positioning table assembly movably mounted on the lower table 1, a No. 2 positioning table assembly fixedly mounted on the lower table 1, a steering assembly movably mounted on the upper table 2, and a No. 3 positioning table assembly mounted on the steering assembly, wherein the No. 1 positioning table assembly is used to install an elastic buffer 17 of the hydraulic bushing, the No. 2 positioning table assembly is used to install a flow channel plate 18 of the hydraulic bushing, the No. 3 positioning table assembly is used to install an outer tube 19 of the hydraulic bushing, the steering assembly is used to drive the No. 3 positioning table assembly to rotate, the lower table 1, the upper table 2, the No. 1 positioning table assembly The components, the No. 2 positioning platform component and the No. 3 positioning platform component are all arranged in the damping liquid tank; a liquid pump 9 and a transposition component are installed on the lower platform 1, the liquid pump 9 is used to output power to the transposition component, and the transposition component is used to drive the No. 1 positioning platform component to move; a top plate 7 is installed on the damping liquid tank, a lifting component is installed on the top plate 7, a defoaming component is installed on the lifting component, the liquid pump 9 is used to output power to the lifting component, the lifting component is used to drive the defoaming component to move in the vertical direction, and the defoaming component is used to spray damping liquid; a horizontal press-fitting component is installed on the top plate 7, the horizontal press-fitting component is used to movably install the flow channel plate 18, and a vertical press-fitting component is installed on the defoaming component. The liquid pump 9 is used to output power to the vertical press-fitting component, and the vertical press-fitting component is used to movably install The outer tube 19, the elastic buffer 17 of the hydraulic bushing, the flow channel plate 18 and the outer tube 19 are respectively sent into the damping liquid through the conveying device, and are respectively sent to the No. 1 positioning platform component, the No. 2 positioning platform component and the No. 3 positioning platform component. The liquid pump 9 first outputs power to the transposition component to control the No. 1 positioning platform component to carry the elastic buffer 17 to move to the bottom of the defoaming component. Then the liquid pump 9 outputs power to the lifting component to control the defoaming component to move down to its position. Then the liquid pump 9 injects the damping liquid into the defoaming component to spray the elastic buffer 17 and the flow channel plate 18 for defoaming. After the treatment is completed, the liquid pump 9 outputs power to the lifting component in the reverse direction to move the defoaming component upward. At the same time, the steering component controls the No. 3 positioning platform component to carry the outer tube 19 to rotate to the elastic Above the buffer 17 (it is worth noting that the height of the secondary platform is higher than the height of the No. 1 positioning platform assembly plus the elastic buffer 17, the primary platform is a T-shaped structure, and the connection line of the No. 1 positioning platform assembly and the No. 3 positioning platform assembly is in a cross shape with the connection line of the two No. 2 positioning platform assemblies), and the horizontal press-fitting assembly moves the flow channel plate 18 to the elastic buffer 17 for assembly. After the flow channel plate 18 and the elastic buffer 17 are assembled, the liquid pump 9 outputs power to the lifting assembly to move the defoaming assembly down again, and then the liquid pump 9 injects the damping liquid into the defoaming assembly and performs a spray defoaming treatment on the outer tube 19. After the treatment is completed, the liquid pump 9 outputs power to the vertical press-fitting assembly to assemble the outer tube 19 to the flow channel plate 18 and the elastic buffer 17 to complete the installation.

[0021] See also Figure 1-Figure 7 and Fig.15In this embodiment, a No. 1 slide groove 305 is provided on the lower stage 1, and the No. 1 positioning stage assembly can move axially along the No. 1 slide groove 305. The No. 1 positioning stage assembly includes a No. 1 platform body 301 arranged on the lower stage 1, a positioning column 302 fixedly connected to the No. 1 platform body 301, a No. 1 slider 303 fixedly connected to the No. 1 platform body 301, and a No. 1 contact switch 304 installed on the No. 1 slider 303. Another No. 1 contact switch 304 is installed on the No. 1 slide groove 305, and an elastic buffer 17 is installed on the No. 1 platform body 301, and the positioning column 302 is adapted to the middle hole on the elastic buffer 17. When the No. 1 slider 303 moves until the two No. 1 contact switches 304 are in contact and energized, a signal is sent to the control unit of the liquid pump 9. The transposition component includes a horizontal drive component and a No. 2 oil channel installed on the lower platform 1. The liquid pump 9 inputs the damping liquid into the horizontal drive component through the No. 2 oil channel. The horizontal drive component is used to drive the No. 1 positioning platform component to move in the horizontal direction; the horizontal drive component includes The second cylinder cover 1001 installed on the lower platform 1 and the second push-pull rod 1002 movably connected in the second cylinder cover 1001, the second push-pull rod 1002 is fixedly connected to the first slider 303; the second oil passage includes a second positive injection pipe 1003 and a second positive discharge pipe 1009 fixedly connected to one end of the second cylinder cover 1001, a second positive injection valve 1004 installed on the second positive injection pipe 1003, and a second positive discharge valve 1009 installed on the second positive discharge pipe 1009. 010, the No. 2 reverse injection pipe 1007 and the No. 2 reverse discharge pipe 1005 fixedly connected to the other end of the No. 2 cylinder cover 1001, the No. 2 reverse injection valve 1008 fixedly installed on the No. 2 reverse injection pipe 1007 and the No. 2 reverse discharge valve 1006 fixedly installed on the No. 2 reverse discharge pipe 1005; when the liquid pump 9 injects damping liquid into the No. 2 cylinder cover 1001 through the No. 2 forward injection pipe 1003, the No. 2 push-pull rod 1002 drives the No. 1 positioning platform assembly to move to the bottom of the defoaming assembly;When the liquid pump 9 injects damping liquid into the No. 2 cylinder cover 1001 through the No. 2 reverse injection pipe 1007, the No. 2 push-pull rod 1002 drives the No. 1 positioning platform assembly to move away from the bottom of the defoaming assembly. In the initial state, the liquid pump 9 is connected to the No. 2 oil channel, and the liquid pump 9 injects damping liquid into the No. 2 cylinder cover 1001 through the No. 2 positive injection pipe 1003 (the No. 2 positive injection valve 1004 and the No. 2 reverse discharge valve 1006 are opened, and the No. 2 reverse injection valve 1008 and the No. 2 positive discharge valve 1010 are closed), pushing the No. 2 push-pull rod 1002 to move, driving the No. 1 slider 303 to move in a straight line along the No. 1 slide groove 305 until the No. 1 platform body 301 moves to the bottom of the defoaming assembly. At this time, the No. 1 contact switch 304 is energized and sends a signal to the liquid pump 9, and the liquid pump 9 switches the output power to On the lifting assembly, the defoaming assembly is controlled to descend to spray and defoam the elastic buffer 17 and the flow channel plates 18 on both sides. After the assembly is completed, the liquid pump 9 is connected to the No. 2 oil channel again, and the liquid pump 9 injects damping liquid into the No. 2 cylinder cover 1001 through the No. 2 reverse injection pipe 1007 (the No. 2 forward injection valve 1004 and the No. 2 reverse discharge valve 1006 are closed, and the No. 2 reverse injection valve 1008 and the No. 2 forward discharge valve 1010 are opened), pushing the No. 2 push-pull rod 1002 to move, driving the No. 1 slider 303 to move linearly along the No. 1 slide groove 305 until the No. 1 platform 301 moves to the initial position (it is worth noting that after the bushing is fully assembled, the liquid pump injects damping liquid into the No. 2 cylinder cover 1001 through the No. 2 reverse injection pipe 1007 to reset the No. 1 platform 301). ;

[0022] See also Figure 1-Figure 6 , Figure 8 , Fig.12 , Fig.15 and Fig.18In this embodiment, the No. 2 positioning platform assembly includes a No. 2 platform body 401 installed on the lower platform 1, a positioning pin 402 movably connected to the No. 2 platform body 401, a support plate 403 fixedly connected to the positioning pin 402, a No. 1 spring 404 installed on the support plate 403, a No. 1 tension sensor 405 installed on the No. 1 spring 404 and a No. 2 contact switch 406 installed on the support plate 403, the positioning pin 402 is used to limit the flow channel plate 18, the positioning pin 402 can move in the vertical direction, the No. 1 tension sensor 405 is used to detect the tension value of the No. 1 spring 404, and another No. 2 contact switch 406 is installed in the No. 2 platform body 401. When the positioning pin 402 moves Until the two No. 2 contact switches 406 are in contact and energized, a signal is sent to the horizontal press-fitting assembly, and after the flow channel plate 18 is delivered to the No. 2 platform 401, the positioning pins 402 are stuck on both sides of the flow channel plate 18 (the flow channel plate 18 is provided with connecting grooves and hooks adapted to the elastic buffer 17), limiting the horizontal movement of the flow channel plate 18. Before the horizontal press-fitting assembly moves the flow channel plate 18, the positioning pins 402 are first moved down into the No. 2 platform 401 to release the horizontal limit on the flow channel plate 18. During the movement of the positioning pin 402, the No. 1 tension sensor 405 and the No. 2 contact switch 406 are both used to detect the moving state of the positioning pin 402, and send signals to the horizontal press-fitting assembly to control the operation in time.

[0023] See also Figure 1-Figure 6 , Figure 8 , Fig.12 , Figure 15-16 and Fig.18In this embodiment, the steering assembly includes a steering platform 501 movably connected to the upper platform 2, a No. 1 motor 502 installed on the upper platform 2, a No. 1 gear 503 fixedly connected to the output end of the No. 1 motor 502, a No. 2 gear 504 fixedly connected to the steering platform 501, a No. 3 gear 505 fixedly connected to the No. 1 gear 503, a torsion spring 506 installed on the No. 1 gear 503 and a torque sensor 507 installed on the upper platform 2, the No. 1 gear 503 and the No. 2 gear 504 are meshed, the No. 1 motor 502 is used to drive the No. 1 gear 503 and the No. 3 gear 505 to rotate, the torsion spring 506 is connected to the torque sensor 507, and the torque sensor 507 Used to detect the torque value of the torsion spring 506 and send a signal to the control unit of the liquid pump 9; the No. 3 positioning platform assembly includes a No. 3 platform body 601 installed on the turning platform 501, a base 602 arranged above the No. 3 platform body 601, a sleeve 603 fixedly connected to the No. 3 platform body 601, a slide bar 604 fixedly connected to the base 602, a No. 2 spring 605 installed on the base 602 and a No. 2 tension sensor 606 installed on the No. 3 platform body 601, one end of the No. 2 tension sensor 606 is connected to the No. 2 spring 605, and the No. 2 tension sensor 606 is used to detect the tension value of the No. 2 spring 605, and send a signal to the control unit of the liquid pump 9 and the control unit of the No. 1 motor 502;A transmission assembly is installed on the No. 2 positioning platform assembly, and the transmission assembly is used to drive the positioning pin 402 to move in the vertical direction. The transmission assembly includes a secondary transmission gear 1304 and a driven gear 1305 movably connected to the No. 2 platform body 401, a middle column 1303 fixedly connected to the lower end of the secondary transmission gear 1304, a primary transmission gear 1302 fixedly connected to the middle column 1303, an outer gear ring 1301 meshing with the primary transmission gear 1302, a No. 1 screw 1306 fixedly connected to the driven gear 1305, a fitting rod 1307 fixedly connected to the upper end of the secondary transmission gear 1304, and a The paddle 1308 on the second platform 401 is provided with a through slot 1309, the outer gear ring 1301 is movably connected to the damping fluid tank, the outer gear ring 1301 is meshed with the third gear 505, the third gear 505 is used to drive the outer gear ring 1301 to rotate, the outer gear ring 1301 is used to drive the primary transmission gear 1302 and the secondary transmission gear 1304 to rotate, the secondary transmission gear 1304 is used to drive the driven gear 1305 and the first screw 1306 to rotate, the support plate 403 is threadedly connected to the first screw 1306, the first screw 1306 is used to drive the support plate 403 to move in the vertical direction, and the paddle 1308 is used to rotate. By moving the damping liquid, after the defoaming of the flow channel plate 18 and the elastic buffer 17 is completed, the No. 1 motor 502 receives the signal to drive the turning platform 501 to drive the No. 3 positioning component and the outer tube 19 to move to the top of the elastic buffer 17 (the No. 1 motor 502 drives the No. 1 gear 503, the No. 1 gear 503 transmits the power to the No. 2 gear 504, and the No. 2 gear 504 drives the turning platform 501 to rotate). During the rotation and movement process, the No. 3 gear 505 synchronously transmits the power to the ring gear, and the ring gear transmits the power to the first-level transmission gear 1302, and the second-level transmission gear 1304 fixed on the first-level transmission gear 1302 rotates synchronously. The power is transmitted to the driven gear 1305, and the driven gear 1305 drives the No. 1 screw 1306 to rotate. Through the screw transmission, the support plate 403 moves vertically along the No. 1 screw 1306, so that the positioning pin 402 extends above the No. 2 platform 401 or retracts into the No. 2 platform 401 (during the movement of the support plate 403, the No. 2 tension sensor 606 detects the stress change of the No. 2 spring 605 in real time and sends a signal), and the paddle 1308 rotates at high speed with the secondary transmission gear 1304, paddles the damping fluid, and transmits the wave force to the flow channel plate 18 through the through groove 1309, and defoams the dead corner of the flow channel plate 18. ;

[0024] See also Figure 1-Figure 4 , Fig. 9 , Fig.14 and Fig.17In this embodiment, the lifting assembly includes a vertical drive assembly and a No. 2 oil channel installed on the top plate 7. The liquid pump 9 inputs the damping liquid into the vertical drive assembly through the No. 2 oil channel. The vertical drive assembly is used to drive the defoaming assembly to move vertically; the vertical drive assembly includes a No. 1 cylinder cover 801 and a fixed frame 809 installed on the top plate 7, a No. 1 push-pull rod 802 movably connected in the No. 1 cylinder cover 801, a push-pull plate 803 fixedly connected to the No. 1 push-pull rod 802, a guide column 804 fixedly connected to the push-pull plate 803, a support plate 805 fixedly connected to the guide column 804, a No. 3 spring 810 fixedly connected to the push-pull plate 803 and a spring 810 installed on the fixed The No. 3 tension sensor 811 on the fixed frame 809, the No. 1 push-pull rod 802 is used to drive the push-pull plate 803, the guide column 804 and the support plate 805 to move in the vertical direction, one end of the No. 3 spring 810 is fixedly connected to the No. 3 tension sensor 811, the No. 3 tension sensor 811 is used to detect the tension value of the No. 3 spring 810, and send a signal to the control unit and the horizontal press-fit assembly of the liquid pump 9; the No. 2 oil channel includes a No. 1 positive injection pipe 1101 fixedly connected to one end of the No. 1 cylinder cover 801, a No. 1 positive injection valve 1102 installed on the No. 1 positive injection pipe 1101, a No. 1 positive discharge pipe 1103 fixedly connected to the No. 1 positive injection pipe 1101, A No. 1 forward discharge valve 1104 installed on the No. 1 forward discharge pipe 1103, a No. 1 reverse injection pipe 1105 fixedly connected to the other end of the No. 1 barrel cover 801, a No. 1 reverse injection valve 1106 installed on the No. 1 reverse injection pipe 1105, a No. 1 reverse discharge pipe 1107 fixedly connected to the No. 1 reverse injection pipe 1105, and a No. 1 reverse discharge valve 1108 installed on the No. 1 reverse discharge pipe 1107, the No. 1 forward injection pipe 1101 and the No. 1 reverse injection pipe 1105 are both connected to the output end of the liquid pump 9; when the liquid pump 9 injects damping liquid into the No. 1 barrel cover 801 through the No. 1 forward injection pipe 1101, the No. 1 push-pull rod 802 drives the carrier plate 8 05 moves downward; when the liquid pump 9 injects damping liquid into the No. 1 cylinder cover 801 through the No. 1 reverse injection pipe 1105, the No. 1 push-pull rod 802 drives the support plate 805 to move upward; the defoaming component includes a spray component and a No. 3 oil channel installed on the support plate 805, and the liquid pump 9 inputs the damping liquid into the spray component through the No. 3 oil channel. The support plate 805 is used to drive the spray component to move vertically; the spray component includes a cavity platform 806 fixedly connected to the support plate 805, a main nozzle 807 installed in the middle of the lower end of the cavity platform 806, and a plurality of auxiliary nozzles 808 installed around the lower end of the cavity platform 806, and a plurality of spray holes are opened on the main nozzle 807 and the auxiliary nozzle 808;The No. 3 oil channel includes a No. 3 injection pipe 1201 fixedly connected to the cavity platform 806 at one end, a No. 3 injection valve 1202 and a flow meter 1203 installed on the No. 3 injection pipe 1201, and the other end of the No. 3 injection pipe 1201 is connected to the output end of the liquid pump 9. The liquid pump 9 inputs the damping liquid into the cavity platform 806 through the No. 3 injection pipe 1201. The flow meter 1203 is used to detect the flow of the damping liquid through the No. 3 injection pipe 1201 and send a signal to the control unit of the liquid pump 9. The elastic buffer 17 After moving to the bottom of the defoaming component, the liquid pump 9 is connected to the No. 1 oil channel, and the liquid pump 9 injects damping liquid into the No. 1 cylinder cover 801 through the No. 1 positive injection pipe 1101 (the No. 1 positive injection valve 1102 and the No. 1 reverse discharge valve 1108 are opened, and the No. 1 reverse injection valve 1106 and the No. 1 positive discharge valve 1104 are closed), pushing the No. 2 push-pull rod 1002 downward, and the No. 3 tension sensor 811 detects the stress change of the No. 3 spring 810 in real time. After reaching the threshold value K1, the liquid pump 9 stops injecting liquid and switches to the connection. After the No. 3 oil channel is connected, the No. 3 injection valve 1202 is opened, and the damping liquid is injected into the cavity platform 806 through the No. 3 injection pipe 1201. The damping liquid is ejected from the spray hole to defoam the elastic buffer 17 and the flow channel plate 18. After the flow meter 1203 detects that the flow rate of the damping liquid for defoaming reaches the threshold value L1, the liquid pump 9 switches to connect the No. 1 oil channel, and the liquid pump 9 injects the damping liquid into the No. 1 cylinder cover 801 through the No. 1 reverse injection pipe 1105 (No. 1 positive injection valve 1102 and No. 1 reverse discharge valve 1108 Close, No. 1 reverse injection valve 1106 and No. 1 forward discharge valve 1104 are opened), push No. 2 push-pull rod 1002 upward to reset, when it is necessary to defoam and press-fit the outer tube 19, the liquid pump 9 injects damping liquid into the No. 1 cylinder cover 801 through the No. 1 forward injection pipe 1101 again in the above manner, and the No. 3 tension sensor 811 detects in real time that the stress change of the No. 3 spring 810 reaches the threshold value K2, and the liquid pump 9 injects damping liquid through the No. 3 injection pipe 1201, and sprays and defoams the outer tube 19 again. ;

[0025] See also Figure 1-Figure 4 , Figure 12-13 and Fig.18In this embodiment, the horizontal press-fitting assembly includes a push assembly installed on the top plate 7 and a clamping assembly installed on the push assembly. The push assembly is used to move the flow channel plate 18 along the horizontal straight line direction, and the clamping assembly is used to clamp the flow channel plate 18; the push assembly includes a track 1401 installed on the top plate 7, a moving machine 1402 slidably installed on the track 1401, a No. 2 slide groove 1403 opened on the top plate 7, a No. 2 slider 1404 movably connected in the No. 2 slide groove 1403, and a No. 2 slider 1404 fixedly connected to the No. 2 slide groove 1403. The suspension rod 1405 on the No. 2 slider 1404, the back plate 1406 fixedly connected to the suspension rod 1405, the directional rod 1413 installed in the No. 2 slide 1403, the No. 4 spring 1414 connected at one end to the No. 2 slider 1404 and the No. 4 tension sensor 1415 installed in the No. 2 slide 1403, the other end of the No. 4 spring 1414 is connected to the No. 4 tension sensor 1415, the mobile machine 1402 is fixedly connected to the No. 2 slider 1404, and the mobile machine 1402 is used to drive the No. 2 slider 1404. The slider 1404 moves axially along the No. 2 slide groove 1403 and the directional rod 1413. The No. 4 tension sensor 1415 is used to detect the tension value of the No. 4 spring 1414 and send a signal to the control unit of the liquid pump 9. The clamping assembly includes a No. 3 slide groove 1407 opened on the back plate 1406, a No. 2 motor 1408 installed on the back plate 1406, a No. 2 screw 1409 movably connected in the No. 3 slide groove 1407, and two No. 3 sliders 1410 threadedly connected to the No. 2 screw 1409. , a support rod 1411 fixedly connected to the third slider 1410 and a block 1412 installed on the support rod 1411, one end of the second screw rod 1409 is fixedly connected to the output end of the second motor 1408, the second motor 1408 is used to drive the second screw rod 1409 to rotate, and the second screw rod 1409 is used to drive the third slider 1410 to move along its axial direction. When the two third sliders 1410 move relative to each other, the block 1412 approaches the flow channel plate 18 until it is embedded in the connecting groove of the flow channel plate 18;When the two No. 3 sliders 1410 move in opposite directions, the block 1412 moves out of the connection groove of the flow channel plate 18. Before the spray defoaming treatment, the No. 2 motor 1408 drives the No. 2 screw 1409 to rotate, controls the No. 3 slider 1410 to move relative to each other (the No. 2 screw 1409 has two reverse thread areas, and the No. 3 slider 1410 is on different reverse thread areas to achieve relative or reverse movement), so that the block 1412 enters the corresponding connection groove of the flow channel plate 18, clamps the flow channel plate 18 to prevent it from moving during defoaming. After the positioning pin 402 is retracted into the No. 2 platform 401, the moving machine 1402 receives the signal and moves along the track 1401 (a linear motor or other linear drive device can be used), and the flow channel plate 18 fixed by the block 1412 is moved to the elastic buffer 17 through the suspension rod 1405 and the back plate 1406, and the two are assembled together. During the assembly, the No. 4 tension sensor 1415 detects the stress state of the No. 4 spring 1414 and sends a signal to the control unit of the liquid pump 9 to switch the output power channel in time. ;

[0026] See also Figure 1-Figure 4 , Figure 10-11 , Fig.14 and Fig.17In this embodiment, the vertical pressing assembly includes a secondary vertical driving assembly installed on the spray assembly, a clamping lock assembly installed on the secondary vertical driving assembly and a No. 4 oil channel. The liquid pump 9 inputs the damping liquid into the secondary vertical driving assembly through the No. 4 oil channel. The secondary vertical driving assembly is used to drive the clamping lock assembly to move in the vertical direction; the secondary vertical driving assembly includes a No. 3 cylinder cover 1501 installed on the cavity platform 806, a No. 3 push-pull rod 1502 movably connected in the No. 3 cylinder cover 1501, an inner pressure piece 1503 fixedly connected to the No. 3 push-pull rod 1502, a connecting frame 1504 fixedly connected around the inner pressure piece 1503 and an outer pressure piece 1505 fixedly connected to the connecting frame 1504, and the connecting frame 150 4 passes through two adjacent auxiliary nozzles 808, and the third push-pull rod 1502 is used to drive the inner pressing piece 1503 and the outer pressing piece 1505 to move vertically; the clamping and locking assembly includes a gear ring 1506 movably connected to the outer pressing piece 1505, a third motor 1507 installed on the outer pressing piece 1505, a fourth gear 1508 installed on the output end of the third motor 1507, an ear plate 1509 fixedly connected to the outer pressing piece 1505, a clamping arm 1510 movably connected to the ear plate 1509, a driven bevel gear 1511 fixedly connected to the clamping arm 1510, a fifth gear 1512 movably connected to the outer pressing piece 1505, and a driving bevel gear 1513 fixedly connected to the fifth gear 1512, and a fourth gear 1508 is meshed with the gear ring 1506, the fifth gear 1512 is meshed with the gear ring 1506, the active bevel gear 1513 is meshed with the adjacent driven bevel gear 1511, the third motor 1507 is used to drive the fourth gear 1508 to rotate, the fourth gear 1508 is used to drive the gear ring 1506 to rotate, the gear ring 1506 is used to drive the fifth gear 1512 and the active bevel gear 1513 to rotate, the active bevel gear 1513 is used to drive the driven bevel gear 1511 and the clamp arm 1510 to rotate, when the clamp arm 1510 rotates downward, the outer tube 19 is clamped, and when the clamp arm 1510 rotates upward, the outer tube 19 is released; the fourth oil passage includes a fourth forward injection pipe 1 fixedly connected to one end of the third cylinder cover 1501 601, a No. 4 forward injection valve 1602 installed on the No. 4 forward injection pipe 1601, a No. 4 forward discharge pipe 1603 fixedly connected to the No. 4 forward injection pipe 1601, a No. 4 forward discharge valve 1604 installed on the No. 4 forward discharge pipe 1603, a No. 4 reverse injection pipe 1605 fixedly connected to the other end of the No. 3 cylinder cover 1501, a No. 4 reverse injection valve 1606 installed on the No. 4 reverse injection pipe 1605, a No. 4 reverse discharge pipe 1607 fixedly connected to the No. 4 reverse injection pipe 1605, and a No. 4 reverse discharge valve 1608 installed on the No. 4 reverse discharge pipe 1607. The No. 4 forward injection pipe 1601 and the No. 4 reverse injection pipe 1605 are both connected to the output end of the liquid pump 9;When the liquid pump 9 injects damping liquid into the No. 3 cylinder cover 1501 through the No. 4 positive injection pipe 1601, the No. 3 push-pull rod 1502 drives the inner pressure plate 1503 and the outer pressure plate 1505 to move downward; when the liquid pump 9 injects damping liquid into the No. 3 cylinder cover 1501 through the No. 4 reverse injection pipe 1605, the No. 3 push-pull rod 1502 drives the inner pressure plate 1503 and the outer pressure plate 1505 to move upward, and after the outer tube 19 moves to the top of the elastic buffer 17, the liquid pump 9 is connected to the No. 1 oil channel, and the liquid pump 9 is connected to the No. 1 oil channel through the No. 1 positive injection pipe 1101 injects damping liquid into the No. 1 cylinder cover 801 (No. 1 forward injection valve 1102 and No. 1 reverse discharge valve 1108 are open, No. 1 reverse injection valve 1106 and No. 1 forward discharge valve 1104 are closed), pushes the No. 2 push-pull rod 1002 downward, and the No. 3 tension sensor 811 detects the stress change of the No. 3 spring 810 in real time. After reaching the threshold value K2, the liquid pump 9 stops injecting liquid and switches to the No. 3 oil channel. After opening the No. 3 injection valve 1202, the No. 3 injection pipe 1201 injects damping liquid into the cavity platform 806. Inject damping liquid, which is ejected from the spray hole to defoam the outer tube 19. After the flow meter 1203 detects that the flow rate of the damping liquid for defoaming reaches the threshold value L2, the injection is stopped and the liquid pump 9 switches the No. 4 oil channel to inject damping liquid into the No. 3 cylinder cover 1501 through the No. 4 forward injection pipe 1601 (the No. 4 forward injection valve 1602 and the No. 4 reverse discharge valve 1608 are opened, and the No. 4 reverse injection valve 1606 and the No. 4 forward discharge valve 1604 are closed), and the inner pressure plate 1503 and the outer pressure plate 1505 are controlled to move downward. At the same time, the clamp arm 1510 clamps the outer tube 19 through the transmission between the No. 4 gear 1508, the gear ring 1506, the driven bevel gear 1511, the No. 5 gear 1512 and the driving bevel gear 1513. After the turning platform 501 is reset, the outer tube 19 is pressed downward onto the flow channel plate 18 and the elastic buffer 17 (it is worth noting that after the press-fitting is completed, the liquid pump injects damping liquid into the No. 3 cylinder cover 1501 through the No. 4 reverse injection pipe 1605 to move the inner pressure plate 1503 and the outer pressure plate 1505 upward and reset). ;

[0027] See also Figure 1-Figure 18 In this embodiment, the present invention provides an automated assembly method for automobile hydraulic bushings, using an automated assembly device for automobile hydraulic bushings as described above, comprising the following steps: S1: The elastic buffer 17, the flow channel plate 18 and the outer tube 19 of the hydraulic bushing are sent to the damping liquid in the damping liquid tank by a feeder, and are respectively delivered to the No. 1 platform 301, the No. 2 platform 401 and the base 602, and are ready for assembly; S2: Start the liquid pump 9, connect the No. 2 oil channel, and open the No. 2 forward injection valve 1004 and the No. 2 reverse discharge valve 1006. The other valve bodies are all in the closed state. The liquid pump 9 injects the damping liquid into the No. 2 cylinder cover 1001 through the No. 2 forward injection pipe 1003. The damping liquid pushes the No. 2 push-pull rod 1002 to move to one side of the upper platform 2. At the same time, the original damping liquid in the No. 2 cylinder cover 1001 is discharged into the damping liquid tank through the No. 2 reverse discharge pipe 1005. The No. 2 push-pull rod 1002 drives the No. 1 slider 303 to slide along the No. 1 slide groove 305 until the No. 1 contact switch 304 is energized. At this time, the No. 1 platform 301 and the elastic buffer 17 thereon are driven to the bottom of the defoaming component. The No. 1 contact switch 304 sends a signal to the control unit of the liquid pump 9 and closes the No. 2 forward injection valve 1004 and the No. 2 reverse discharge valve 1006. S3: After the control unit of the liquid pump 9 receives the signal sent by the No. 1 contact switch 304, it disconnects the No. 2 oil channel and connects the No. 1 oil channel, opens the No. 1 forward injection valve 1102 and the No. 1 reverse discharge valve 1108, and the liquid pump 9 injects the damping liquid into the No. 1 cylinder cover 801 through the No. 1 forward injection pipe 1101. The damping liquid pushes the No. 1 push-pull rod 802 to move downward. At the same time, the original damping liquid in the No. 1 cylinder cover 801 is discharged into the damping liquid tank through the No. 1 reverse discharge pipe 1107. The No. 1 push-pull rod 802 drives the push-pull plate 803, the guide column 804 and the support plate 805 to move downward. At the same time, the No. 3 spring 810 is deformed and elongated. When the No. 3 tension sensor 811 detects When the deformation of the No. 3 spring 810 reaches the threshold value K1, a signal is sent to the control unit of the liquid pump 9 to stop pumping liquid and close the No. 1 forward injection valve 1102 and the No. 1 reverse discharge valve 1108, and a signal is also sent to the No. 2 motor 1408 on the horizontal press-fit assembly. At this time, the defoaming assembly and the vertical press-fit assembly move down to their positions, and the inner pressing sheet 1503 is pressed on the upper end of the elastic buffer 17 to prevent the elastic buffer 17 from moving during defoaming. The No. 2 motor 1408 drives the No. 2 screw 1409 to rotate, so that the No. 3 slider 1410 moves relatively until the block 1412 is inserted into the corresponding connection groove of the flow channel plate 18, locking the flow channel plate 18 to prevent the flow channel plate 18 from moving during defoaming. S4: After receiving the signal sent by the No. 3 tension sensor 811, the control unit of the liquid pump 9 disconnects the No. 2 oil channel and connects the No. 3 oil channel, opens the No. 3 injection valve 1202, and the liquid pump 9 injects the damping liquid into the cavity platform 806 through the No. 3 injection pipe 1201, and finally ejects it from the nozzles on the main nozzle 807 and the auxiliary nozzle 808, acting on the elastic buffer 17 and the flow channel plates 18 on both sides to defoam. After the flow meter 1203 detects that the injection flow rate reaches the threshold value L1, it sends a signal to the control unit of the liquid pump 9 and closes the No. 3 injection valve 1202; S5: After receiving the signal sent by the flow meter 1203, the control unit of the liquid pump 9 disconnects the No. 3 oil channel and reconnects the No. 1 oil channel, opens the No. 1 reverse injection valve 1106 and the No. 1 forward discharge valve 1104, and the liquid pump 9 injects the damping liquid into the No. 1 cylinder cover 801 through the No. 1 reverse injection pipe 1105. The damping liquid pushes the No. 1 push-pull rod 802 to move upward. At the same time, the original damping liquid in the No. 1 cylinder cover 801 is discharged into the damping liquid tank through the No. 1 forward discharge pipe 1103. The No. 1 push-pull rod 802 drives the push-pull plate 803, the guide column 804 and the support plate 805 to move upward. At the same time, the No. 3 spring 810 is deformed and restored. When the No. 3 tension sensor 811 detects When the tension value of the No. 3 spring 810 returns to zero, a signal is sent to the control unit of the liquid pump 9 to stop pumping liquid and close the No. 1 reverse injection valve 1106 and the No. 1 forward discharge valve 1104. At this time, the defoaming component and the vertical pressing component return to the initial position. At the same time, the No. 3 tension sensor 811 also sends a signal to the No. 1 motor 502 on the steering component. The No. 1 motor 502 drives the No. 1 gear 503 to rotate. Through the meshing transmission of the No. 1 gear 503 and the No. 2 gear 504, the steering platform 501 is controlled to rotate to the top of the elastic buffer 17, the torsion spring 506 is deformed, and the torque sensor 507 detects that the torque of the torsion spring 506 reaches the threshold value, and sends a signal to the control unit of the liquid pump 9; S6: During the rotation of the turning platform 501, the meshing transmission of the No. 3 gear 505 and the outer gear ring 1301 outputs power to the primary transmission gear 1302, and the primary transmission gear 1302 transmits the power upward to the secondary transmission gear 1304 and the paddle 1308. During the rotation of the paddle 1308, the damping fluid is stirred, and the wave force of the damping fluid is transmitted upward to the flow channel plate 18 through the through groove 1309, so as to perform secondary defoaming on the local dead corner. At the same time, the No. 1 screw 1306 rotates, and the support plate 403 is driven to fall through the thread transmission, and the No. 1 spring 404 is deformed. After the No. 1 tension sensor 405 detects that the deformation of the No. 1 spring 404 reaches the threshold, it sends a signal to the control unit of the mobile machine 1402 in the horizontal press-fitting assembly; S7: The mobile machine 1402 starts after receiving the signal transmitted by the No. 1 tension sensor 405, moves along the track 1401, and drives the flow channel plate 18 clamped and fixed by the clamping block 1412 to move toward the elastic buffer 17 through the suspension rod 1405 and the back plate 1406, until it is clamped on the elastic buffer 17 to complete the assembly. At this time, the No. 2 slider 1404 moves to the end of the No. 2 slide groove 1403, and the No. 4 tension sensor 1415 detects that the No. 4 spring 1414 is compressed to a threshold value, and sends a signal to the No. 2 motor 1408 on the horizontal press-fit assembly. The No. 2 motor 1408 drives the No. 2 screw 1409 to rotate, so that the No. 3 slider 1410 moves in the opposite direction, until the clamping block 1412 leaves the corresponding connection groove of the flow channel plate 18, and the flow channel plate 18 is released. At the same time, the mobile machine 1402 moves in the opposite direction to reset; S8: After the liquid pump 9 receives the signal sent by the torque sensor 507 in S5, the No. 1 forward injection valve 1102 and the No. 1 reverse discharge valve 1108 are reopened, and the liquid pump 9 injects the damping liquid into the No. 1 cylinder cover 801 through the No. 1 forward injection pipe 1101. The damping liquid pushes the No. 1 push-pull rod 802 to move downward. At the same time, the original damping liquid in the No. 1 cylinder cover 801 is discharged into the damping liquid tank through the No. 1 reverse discharge pipe 1107. The No. 1 push-pull rod 802 drives the push-pull plate 803, the guide column 804 and the support plate 805 to move downward. At the same time, the No. 3 spring 810 is deformed and elongated. When the No. 3 tension sensor 811 detects that the deformation of the No. 3 spring 810 reaches the threshold value K2, a signal is sent to the control unit of the liquid pump 9 to stop pumping liquid and close the No. 1 forward injection valve 1102 and the No. 1 reverse discharge valve 1108. At this time, the main nozzle 807 and the auxiliary nozzle 808 both enter the outer tube 19; S9: After the control unit of the liquid pump 9 receives the signal sent by the No. 3 tension sensor 811 in S8, the No. 1 oil channel is disconnected, and the No. 3 oil channel is reconnected, and the No. 3 injection valve 1202 is opened. The liquid pump 9 injects the damping liquid into the cavity platform 806 through the No. 3 injection pipe 1201, and finally ejects it from the nozzle holes on the main nozzle 807 and the auxiliary nozzle 808, acting on the inner wall of the outer tube 19 to defoam. After the flow meter 1203 detects that the injection flow reaches the threshold value L2, it sends a signal to the control unit of the liquid pump 9 and the vertical press-fit assembly, and closes the No. 3 injection valve 1202; S10: After the control unit of the liquid pump 9 receives the signal sent by the flow meter 1203 in S9, the No. 3 oil channel is disconnected and the No. 4 oil channel is connected. The No. 4 forward injection valve 1602 and the No. 4 reverse discharge valve 1608 are opened. The liquid pump 9 injects the damping liquid into the No. 3 cylinder cover 1501 through the No. 4 forward injection pipe 1601. The damping liquid pushes the No. 3 push-pull rod 1502 to move downward. At the same time, the original damping liquid in the No. 3 cylinder cover 1501 is The damping liquid is discharged into the damping liquid tank through the No. 4 reverse discharge pipe 1607, and the No. 3 push-pull rod 1502 drives the inner pressure plate 1503 and the outer pressure plate 1505 to move downward. At the same time, the No. 3 motor 1507 is started, and the power is output to the active bevel gear 1513 through the meshing transmission of the No. 4 gear 1508, the gear ring 1506, and the No. 5 gear 1512, thereby driving the clamping arm 1510 on the driven bevel gear 1511 to rotate downward to clamp the outer tube 19; S11: When the inner pressure plate 1503 and the outer pressure plate 1505 move downward and press the pedestal 602, the second spring 605 is deformed. After the second tension sensor 606 detects that the deformation of the second spring 605 reaches the threshold, it sends a signal to the control unit of the liquid pump 9 to close the fourth forward injection valve 1602 and the fourth reverse discharge valve 1608, and open the fourth reverse injection valve 1606 and the fourth forward discharge valve 1604. The liquid pump 9 injects the damping liquid into the third cylinder cover 150 through the fourth reverse injection pipe 1605. 1. The damping fluid pushes the No. 3 push-pull rod 1502 to move upward. At the same time, the original damping fluid in the No. 3 cylinder cover 1501 is discharged into the damping fluid tank through the No. 4 positive discharge pipe 1603. The No. 3 push-pull rod 1502 drives the inner pressure plate 1503, the outer pressure plate 1505 and the fixed outer tube 19 to move upward for a distance. The No. 2 spring 605 recovers. After the No. 2 tension sensor 606 detects that the deformation of the No. 2 spring 605 returns to zero, it sends a signal to the control unit of the liquid pump 9 and the control unit of the No. 1 motor 502; S12: After the control unit of the liquid pump 9 and the control unit of the No. 1 motor 502 receive the signal sent by the No. 2 tension sensor 606, they stop injecting liquid into the No. 3 cylinder cover 1501, and the No. 1 motor 502 drives the turning platform 501 to rotate and reset, and the deformation of the torsion spring 506 is restored. After the torque sensor 507 detects that the deformation of the torsion spring 506 has returned to zero, it sends a signal to the control unit of the liquid pump 9, and the No. 4 reverse injection valve 1606 and the No. 4 forward discharge valve 1604 are closed, and the No. 4 forward injection valve 1602 and the No. 4 reverse discharge valve 1608 are reopened. The liquid pump 9 injects the damping liquid into the No. 3 cylinder cover 1501 through the No. 4 forward injection pipe 1601. The damping liquid pushes the No. 3 push-pull rod 1502 to move downward, and the fixed outer tube 19 is pressed onto the flow channel plate 18 of the assembled elastic buffer 17 to complete the assembly.

Claims

1. An automated assembly device for automobile hydraulic bushings, including a damping fluid tank, characterized in that: It also includes a lower table (1), an upper table (2) fixedly mounted on the lower table (1), a first positioning table assembly movably mounted on the lower table (1), a second positioning table assembly fixedly mounted on the lower table (1), a steering assembly movably mounted on the upper table (2), and a third positioning table assembly mounted on the steering assembly, wherein the first positioning table assembly is used to mount an elastic buffer member (17) of a hydraulic bushing, the second positioning table assembly is used to mount a flow channel plate (18) of the hydraulic bushing, the third positioning table assembly is used to mount an outer tube (19) of the hydraulic bushing, the steering assembly is used to drive the third positioning table assembly to rotate, and the lower table (1), the upper table (2), the first positioning table assembly, the second positioning table assembly, and the third positioning table assembly are all arranged in a damping liquid tank; A liquid pump (9) and a transposition assembly are installed on the lower platform (1), the liquid pump (9) is used to output power to the transposition assembly, and the transposition assembly is used to drive the first positioning platform assembly to move; A top plate (7) is mounted on the damping liquid tank, a lifting assembly is mounted on the top plate (7), a defoaming assembly is mounted on the lifting assembly, a liquid pump (9) is used to output power to the lifting assembly, the lifting assembly is used to drive the defoaming assembly to move in a vertical direction, and the defoaming assembly is used to spray the damping liquid; A horizontal press-fit assembly is installed on the top plate (7), and the horizontal press-fit assembly is used to movably install the flow channel plate (18). A vertical press-fit assembly is installed on the defoaming assembly. The liquid pump (9) is used to output power to the vertical press-fit assembly, and the vertical press-fit assembly is used to movably install the outer tube (19).

2. The automated assembly equipment for automobile hydraulic bushings according to claim 1 is characterized in that: A No. 1 slide groove (305) is provided on the lower platform (1), and the No. 1 positioning platform assembly can move axially along the No. 1 slide groove (305). The No. 1 positioning platform assembly comprises a No. 1 platform body (301) arranged on the lower platform (1), a positioning column (302) fixedly connected to the No. 1 platform body (301), a No. 1 slider (303) fixedly connected to the No. 1 platform body (301), and a No. 1 contact switch (304) installed on the No. 1 slider (303). Another No. 1 contact switch (304) is installed on the No. 1 slide groove (305), and an elastic buffer (17) is installed on the No. 1 platform body (301). The positioning column (302) is adapted to the middle hole on the elastic buffer (17). When the No. 1 slider (303) moves until the two No. 1 contact switches (304) are in contact and energized, a signal is sent to the control unit of the liquid pump (9).

3. The automated assembly equipment for automobile hydraulic bushings according to claim 2 is characterized in that: The transposition assembly comprises a horizontal drive assembly and a second oil channel mounted on the lower platform (1); a liquid pump (9) inputs damping liquid into the horizontal drive assembly through the second oil channel; the horizontal drive assembly is used to drive the first positioning platform assembly to move in a horizontal direction; The horizontal driving assembly comprises a No. 2 cylinder cover (1001) mounted on the lower platform (1) and a No. 2 push-pull rod (1002) movably connected in the No. 2 cylinder cover (1001), wherein the No. 2 push-pull rod (1002) is fixedly connected to the No. 1 slide block (303); The second oil passage comprises a second forward injection pipe (1003) and a second forward discharge pipe (1009) fixedly connected to one end of the second barrel cover (1001), a second forward injection valve (1004) installed on the second forward injection pipe (1003), a second forward discharge valve (1010) installed on the second forward discharge pipe (1009), a second reverse injection pipe (1007) and a second reverse discharge pipe (1005) fixedly connected to the other end of the second barrel cover (1001), a second reverse injection valve (1008) fixedly installed on the second reverse injection pipe (1007), and a second reverse discharge valve (1006) fixedly installed on the second reverse discharge pipe (1005); When the liquid pump (9) injects damping liquid into the No. 2 cylinder cover (1001) through the No. 2 forward liquid injection pipe (1003), the No. 2 push-pull rod (1002) drives the No. 1 positioning platform assembly to move to the position directly below the defoaming assembly; when the liquid pump (9) injects damping liquid into the No. 2 cylinder cover (1001) through the No. 2 reverse liquid injection pipe (1007), the No. 2 push-pull rod (1002) drives the No. 1 positioning platform assembly to move away from the position directly below the defoaming assembly.

4. The automated assembly equipment for automobile hydraulic bushings according to claim 3 is characterized in that: The second positioning platform assembly comprises a second platform body (401) mounted on a lower platform plate (1), a positioning pin (402) movably connected to the second platform body (401), a support plate (403) fixedly connected to the positioning pin (402), a first spring (404) mounted on the support plate (403), a first tension sensor (405) mounted on the first spring (404), and a second contact switch (406) mounted on the support plate (403), wherein the positioning pin (402) is used to limit the flow channel plate (18), the positioning pin (402) can move in a vertical direction, the first tension sensor (405) is used to detect the tension value of the first spring (404), and another second contact switch (406) is installed in the second platform body (401), and when the positioning pin (402) moves until the two second contact switches (406) are in contact and energized, a signal is sent to the horizontal press-fit assembly.

5. The automated assembly equipment for automobile hydraulic bushings according to claim 4 is characterized in that: The steering assembly comprises a steering platform (501) movably connected to an upper platform (2), a No. 1 motor (502) mounted on the upper platform (2), a No. 1 gear (503) fixedly connected to an output end of the No. 1 motor (502), a No. 2 gear (504) fixedly connected to the steering platform (501), a No. 3 gear (505) fixedly connected to the No. 1 gear (503), a torsion spring (506) mounted on the No. 1 gear (503), and a torque sensor (507) mounted on the upper platform (2), wherein the No. 1 gear (503) and the No. 2 gear (504) are meshed, the No. 1 motor (502) is used to drive the No. 1 gear (503) and the No. 3 gear (505) to rotate, the torsion spring (506) is connected to the torque sensor (507), and the torque sensor (507) is used to detect the torque value of the torsion spring (506) and send a signal to a control unit of a liquid pump (9); The No. 3 positioning platform assembly comprises a No. 3 platform body (601) mounted on the turning platform (501), a platform base (602) arranged above the No. 3 platform body (601), a sleeve (603) fixedly connected to the No. 3 platform body (601), a sliding rod (604) fixedly connected to the platform base (602), a No. 2 spring (605) mounted on the platform base (602), and a No. 2 tension sensor (606) mounted on the No. 3 platform body (601), one end of the No. 2 tension sensor (606) being connected to the No. 2 spring (605), and the No. 2 tension sensor (606) being used to detect the tension value of the No. 2 spring (605), and to send a signal to a control unit of a liquid pump (9) and a control unit of a No. 1 motor (502).

6. The automated assembly equipment for automobile hydraulic bushings according to claim 5 is characterized in that: The lifting assembly comprises a vertical drive assembly and a second oil channel mounted on the top plate (7); a liquid pump (9) inputs damping liquid into the vertical drive assembly through the second oil channel; the vertical drive assembly is used to drive the defoaming assembly to move vertically; The vertical drive assembly comprises a No. 1 barrel cover (801) and a fixing frame (809) mounted on a top plate (7), a No. 1 push-pull rod (802) movably connected to the No. 1 barrel cover (801), a push-pull plate (803) fixedly connected to the No. 1 push-pull rod (802), a guide column (804) fixedly connected to the push-pull plate (803), a support plate (805) fixedly connected to the guide column (804), and a No. 3 spring (81 0) and a No. 3 tension sensor (811) mounted on a fixing frame (809), a No. 1 push-pull rod (802) is used to drive the push-pull plate (803), the guide column (804) and the support plate (805) to move in a vertical direction, one end of a No. 3 spring (810) is fixedly connected to the No. 3 tension sensor (811), and the No. 3 tension sensor (811) is used to detect the tension value of the No. 3 spring (810) and send a signal to a control unit of the liquid pump (9) and a horizontal press-fit assembly; The second oil passage comprises a first positive injection pipe (1101) fixedly connected to one end of the first barrel cover (801), a first positive injection valve (1102) installed on the first positive injection pipe (1101), a first positive discharge pipe (1103) fixedly connected to the first positive injection pipe (1101), and a first positive discharge valve (1104) installed on the first positive discharge pipe (1103), fixedly connected to the other end of the first barrel cover (801). A No. 1 reverse injection pipe (1105), a No. 1 reverse injection valve (1106) installed on the No. 1 reverse injection pipe (1105), a No. 1 reverse discharge pipe (1107) fixedly connected to the No. 1 reverse injection pipe (1105), and a No. 1 reverse discharge valve (1108) installed on the No. 1 reverse discharge pipe (1107), wherein the No. 1 forward injection pipe (1101) and the No. 1 reverse injection pipe (1105) are both connected to the output end of the liquid pump (9); When the liquid pump (9) injects damping liquid into the No. 1 barrel cover (801) through the No. 1 forward liquid injection pipe (1101), the No. 1 push-pull rod (802) drives the support plate (805) to move downward; when the liquid pump (9) injects damping liquid into the No. 1 barrel cover (801) through the No. 1 reverse liquid injection pipe (1105), the No. 1 push-pull rod (802) drives the support plate (805) to move upward; The defoaming assembly comprises a liquid spray assembly and a No. 3 oil channel mounted on a support plate (805); a liquid pump (9) inputs damping liquid into the liquid spray assembly through the No. 3 oil channel; and the support plate (805) is used to drive the liquid spray assembly to move vertically; The liquid spraying assembly comprises a cavity platform (806) fixedly connected to a support plate (805), a main nozzle (807) installed in the middle of the lower end of the cavity platform (806), and a plurality of auxiliary nozzles (808) installed around the lower end of the cavity platform (806), wherein the main nozzle (807) and the auxiliary nozzles (808) are both provided with a plurality of spray holes; The No. 3 oil channel comprises a No. 3 liquid injection pipe (1201) having one end fixedly connected to the cavity platform (806), a No. 3 liquid injection valve (1202) and a flow meter (1203) installed on the No. 3 liquid injection pipe (1201); the other end of the No. 3 liquid injection pipe (1201) is connected to the output end of the liquid pump (9); the liquid pump (9) inputs the damping liquid into the cavity platform (806) through the No. 3 liquid injection pipe (1201); and the flow meter (1203) is used to detect the flow rate of the damping liquid passing through the No. 3 liquid injection pipe (1201) and send a signal to the control unit of the liquid pump (9).

7. The automated assembly equipment for automobile hydraulic bushings according to claim 6 is characterized in that: The horizontal press-fitting assembly comprises a push assembly mounted on the top plate (7) and a clamping assembly mounted on the push assembly, the push assembly being used to move the flow channel plate (18) along a horizontal straight line direction, and the clamping assembly being used to clamp the flow channel plate (18); The push assembly comprises a track (1401) installed on the top plate (7), a mobile machine (1402) slidably installed on the track (1401), a No. 2 slide groove (1403) opened on the top plate (7), a No. 2 slider (1404) movably connected to the No. 2 slide groove (1403), a suspension rod (1405) fixedly connected to the No. 2 slider (1404), a back plate (1406) fixedly connected to the suspension rod (1405), a directional rod (1413) installed in the No. 2 slide groove (1403), and a four-way rod (1413) having one end connected to the No. 2 slider (1404). No. 4 spring (1414) and No. 4 tension sensor (1415) installed in No. 2 slide groove (1403), the other end of the No. 4 spring (1414) is connected to the No. 4 tension sensor (1415), the moving machine (1402) is fixedly connected to the No. 2 slider (1404), the moving machine (1402) is used to drive the No. 2 slider (1404) to move axially along the No. 2 slide groove (1403) and the directional rod (1413), and the No. 4 tension sensor (1415) is used to detect the tension value of the No. 4 spring (1414) and send a signal to the control unit of the liquid pump (9); The fixing assembly includes a No. 3 slide groove (1407) provided on the back plate (1406), a No. 2 motor (1408) installed on the back plate (1406), a No. 2 screw rod (1409) movably connected in the No. 3 slide groove (1407), two No. 3 sliders (1410) threadedly connected to the No. 2 screw rod (1409), a support rod (1411) fixedly connected to the No. 3 sliders (1410), and a block (1412) installed on the support rod (1411), wherein one end of the No. 2 screw rod (1409) is fixed Connected to the output end of the No. 2 motor (1408), the No. 2 motor (1408) is used to drive the No. 2 screw (1409) to rotate, and the No. 2 screw (1409) is used to drive the No. 3 slider (1410) to move along its axial direction. When the two No. 3 sliders (1410) move relative to each other, the clamping block (1412) approaches the flow channel plate (18) until it is embedded in the connecting groove of the flow channel plate (18); when the two No. 3 sliders (1410) move in opposite directions, the clamping block (1412) moves out of the connecting groove of the flow channel plate (18).

8. The automated assembly equipment for automobile hydraulic bushings according to claim 7 is characterized in that: The vertical press-fit assembly comprises a secondary vertical drive assembly mounted on the liquid spray assembly, a clamping lock assembly mounted on the secondary vertical drive assembly, and a fourth oil channel, wherein the liquid pump (9) inputs the damping liquid into the secondary vertical drive assembly through the fourth oil channel, and the secondary vertical drive assembly is used to drive the clamping lock assembly to move in the vertical direction; The secondary vertical drive assembly comprises a No. 3 barrel cover (1501) mounted on the chamber platform (806), a No. 3 push-pull rod (1502) movably connected in the No. 3 barrel cover (1501), an inner pressing piece (1503) fixedly connected to the No. 3 push-pull rod (1502), a connecting frame (1504) fixedly connected around the inner pressing piece (1503), and an outer pressing piece (1505) fixedly connected to the connecting frame (1504), wherein the connecting frame (1504) passes through two adjacent auxiliary nozzles (808), and the No. 3 push-pull rod (1502) is used to drive the inner pressing piece (1503) and the outer pressing piece (1505) to move vertically; The clamping and locking assembly comprises a gear ring (1506) movably connected to the outer pressing plate (1505), a No. 3 motor (1507) installed on the outer pressing plate (1505), a No. 4 gear (1508) installed on the output end of the No. 3 motor (1507), an ear plate (1509) fixedly connected to the outer pressing plate (1505), a clamping arm (1510) movably connected to the ear plate (1509), a driven bevel gear (1511) fixedly connected to the clamping arm (1510), a No. 5 gear (1512) movably connected to the outer pressing plate (1505) and an active bevel gear (1513) fixedly connected to the No. 5 gear (1512), and a No. 4 gear (1508) and a gear ring (1509). 6) mesh with each other, the fifth gear (1512) meshes with the gear ring (1506), the active bevel gear (1513) meshes with the adjacent driven bevel gear (1511), the third motor (1507) is used to drive the fourth gear (1508) to rotate, the fourth gear (1508) is used to drive the gear ring (1506) to rotate, the gear ring (1506) is used to drive the fifth gear (1512) and the active bevel gear (1513) to rotate, the active bevel gear (1513) is used to drive the driven bevel gear (1511) and the clamp arm (1510) to rotate, when the clamp arm (1510) rotates downward, the outer tube (19) is clamped, and when the clamp arm (1510) rotates upward, the outer tube (19) is released; The fourth oil passage comprises a fourth positive injection pipe (1601) fixedly connected to one end of the third barrel cover (1501), a fourth positive injection valve (1602) installed on the fourth positive injection pipe (1601), a fourth positive discharge pipe (1603) fixedly connected to the fourth positive injection pipe (1601), a fourth positive discharge valve (1604) installed on the fourth positive discharge pipe (1603), and a fourth positive discharge valve (1605) fixedly connected to the other end of the third barrel cover (1501). A fourth reverse injection pipe (1605) at the end, a fourth reverse injection valve (1606) installed on the fourth reverse injection pipe (1605), a fourth reverse discharge pipe (1607) fixedly connected to the fourth reverse injection pipe (1605), and a fourth reverse discharge valve (1608) installed on the fourth reverse discharge pipe (1607), the fourth forward injection pipe (1601) and the fourth reverse injection pipe (1605) are both connected to the output end of the liquid pump (9); When the liquid pump (9) injects damping liquid into the No. 3 cylinder cover (1501) through the No. 4 forward liquid injection pipe (1601), the No. 3 push-pull rod (1502) drives the inner pressure plate (1503) and the outer pressure plate (1505) to move downward; when the liquid pump (9) injects damping liquid into the No. 3 cylinder cover (1501) through the No. 4 reverse liquid injection pipe (1605), the No. 3 push-pull rod (1502) drives the inner pressure plate (1503) and the outer pressure plate (1505) to move upward.

9. The automated assembly equipment for automobile hydraulic bushings according to claim 8 is characterized in that: A transmission assembly is installed on the second positioning platform assembly, and the transmission assembly is used to drive the positioning pin (402) to move in the vertical direction. The transmission assembly includes a secondary transmission gear (1304) and a driven gear (1305) movably connected to the second platform body (401), a middle column (1303) fixedly connected to the lower end of the secondary transmission gear (1304), a primary transmission gear (1302) fixedly connected to the middle column (1303), an outer gear ring (1301) meshing with the primary transmission gear (1302), a first screw rod (1306) fixedly connected to the driven gear (1305), a mounting rod (1307) fixedly connected to the upper end of the secondary transmission gear (1304), and a paddle (1307) mounted on the mounting rod (1307). 08), a through groove (1309) is provided on the second platform (401), the outer gear ring (1301) is movably connected to the damping fluid tank, the outer gear ring (1301) is meshed with the third gear (505), the third gear (505) is used to drive the outer gear ring (1301) to rotate, the outer gear ring (1301) is used to drive the first transmission gear (1302) and the second transmission gear (1304) to rotate, the second transmission gear (1304) is used to drive the driven gear (1305) and the first screw (1306) to rotate, the support plate (403) is threadedly connected to the first screw (1306), the first screw (1306) is used to drive the support plate (403) to move in the vertical direction, and the paddle (1308) is used to pry the damping fluid when rotating.

10. An automated assembly method for automobile hydraulic bushings, characterized in that: The automated assembly equipment for automobile hydraulic bushings according to claim 9 comprises the following steps: S1: The elastic buffer (17), the flow channel plate (18) and the outer tube (19) of the hydraulic bushing are sent to the damping fluid in the damping fluid tank by a feeder until they respectively arrive on the No. 1 platform (301), the No. 2 platform (401) and the base (602) to prepare for assembly; S2: Start the liquid pump (9), connect the No. 2 oil channel, open the No. 2 forward injection valve (1004) and the No. 2 reverse discharge valve (1006), and keep the other valves closed. The liquid pump (9) injects the damping liquid into the No. 2 cylinder cover (1001) through the No. 2 forward injection pipe (1003). The damping liquid pushes the No. 2 push-pull rod (1002) to move toward one side of the upper platform (2). At the same time, the damping liquid in the No. 2 cylinder cover (1001) is discharged through the No. 2 reverse discharge pipe (1006). 005) is discharged into the damping liquid tank, the No. 2 push-pull rod (1002) drives the No. 1 slider (303) to slide along the No. 1 slide groove (305) until the No. 1 contact switch (304) is energized, at which time the No. 1 platform (301) and the elastic buffer (17) thereon are driven to the bottom of the defoaming component, and the No. 1 contact switch (304) sends a signal to the control unit of the liquid pump (9) and closes the No. 2 forward injection valve (1004) and the No. 2 reverse discharge valve (1006); S3: After receiving the signal sent by the No. 1 contact switch (304), the control unit of the liquid pump (9) disconnects the No. 2 oil channel and connects the No. 1 oil channel, opens the No. 1 forward injection valve (1102) and the No. 1 reverse discharge valve (1108), and the liquid pump (9) injects the damping liquid into the No. 1 cylinder cover (801) through the No. 1 forward injection pipe (1101). The damping liquid pushes the No. 1 push-pull rod (802) to move downward. At the same time, the original damping liquid in the No. 1 cylinder cover (801) is discharged into the damping liquid tank through the No. 1 reverse discharge pipe (1107). The No. 1 push-pull rod (802) drives the push-pull plate (803), the guide column (804) and the support plate (805) to move downward. At the same time, the No. 3 spring (810) is deformed and elongated. When the No. 3 tension sensor (811) detects When it is detected that the deformation of the No. 3 spring (810) reaches the threshold value K1, a signal is sent to the control unit of the liquid pump (9) to stop pumping liquid and close the No. 1 forward injection valve (1102) and the No. 1 reverse discharge valve (1108). A signal is also sent to the No. 2 motor (1408) on the horizontal press-fit assembly. At this time, the defoaming assembly and the vertical press-fit assembly move down to their positions, and the inner pressing plate (1503) is pressed on the upper end of the elastic buffer (17) to prevent the elastic buffer (17) from moving during defoaming. The No. 2 motor (1408) drives the No. 2 screw (1409) to rotate, causing the No. 3 slider (1410) to move relatively until the block (1412) is inserted into the corresponding connection groove of the flow channel plate (18), thereby locking the flow channel plate (18) and preventing the flow channel plate (18) from moving during defoaming. S4: After receiving the signal sent by the No. 3 tension sensor (811), the control unit of the liquid pump (9) disconnects the No. 2 oil channel and connects the No. 3 oil channel, opens the No. 3 injection valve (1202), and the liquid pump (9) injects the damping liquid into the cavity platform (806) through the No. 3 injection pipe (1201), and finally ejects the damping liquid from the nozzle holes on the main nozzle (807) and the auxiliary nozzle (808), acting on the elastic buffer (17) and the flow channel plates (18) on both sides to defoam. After the flow meter (1203) detects that the injection flow rate reaches the threshold value L1, it sends a signal to the control unit of the liquid pump (9) and closes the No. 3 injection valve (1202); S5: After receiving the signal sent by the flow meter (1203), the control unit of the liquid pump (9) disconnects the No. 3 oil channel and reconnects the No. 1 oil channel, opens the No. 1 reverse injection valve (1106) and the No. 1 forward discharge valve (1104), and the liquid pump (9) injects the damping liquid into the No. 1 cylinder cover (801) through the No. 1 reverse injection pipe (1105). The damping liquid pushes the No. 1 push-pull rod (802) to move upward. At the same time, the original damping liquid in the No. 1 cylinder cover (801) is discharged into the damping liquid tank through the No. 1 forward discharge pipe (1103). The No. 1 push-pull rod (802) drives the push-pull plate (803), the guide column (804) and the support plate (805) to move upward. At the same time, the No. 3 spring (810) is deformed and restored. When the No. 3 tension sensor (811) detects When the tension value of the No. 3 spring (810) returns to zero, a signal is sent to the control unit of the liquid pump (9) to stop pumping liquid and close the No. 1 reverse injection valve (1106) and the No. 1 forward discharge valve (1104). At this time, the defoaming component and the vertical pressing component return to the initial position. At the same time, the No. 3 tension sensor (811) also sends a signal to the No. 1 motor (502) on the steering component. The No. 1 motor (502) drives the No. 1 gear (503) to rotate. Through the meshing transmission of the No. 1 gear (503) and the No. 2 gear (504), the steering platform (501) is controlled to rotate to the top of the elastic buffer (17). The torsion spring (506) is deformed, and the torque sensor (507) detects that the torque of the torsion spring (506) reaches the threshold value, and sends a signal to the control unit of the liquid pump (9); S6: During the rotation of the turning platform (501), the meshing transmission between the third gear (505) and the outer gear ring (1301) outputs power to the first transmission gear (1302), and the first transmission gear (1302) transmits the power upward to the second transmission gear (1304) and the paddle (1308). During the rotation of the paddle (1308), the damping fluid is stirred, and the wave force of the damping fluid is transmitted upward to the flow channel plate (18) through the through groove (1309), so as to perform secondary defoaming on the local dead corner. At the same time, the first screw (1306) rotates, and the support plate (403) is driven to fall through the screw transmission, and the first spring (404) is deformed. After the first tension sensor (405) detects that the deformation of the first spring (404) reaches a threshold value, it sends a signal to the control unit of the moving machine (1402) in the horizontal press-fitting assembly; S7: The moving machine (1402) starts after receiving the signal transmitted by the No. 1 tension sensor (405), moves along the track (1401), and drives the flow channel plate (18) clamped and fixed by the clamping block (1412) to move toward the elastic buffer (17) through the suspension rod (1405) and the back plate (1406), until it is clamped on the elastic buffer (17) to complete the assembly. At this time, the No. 2 slider (1404) moves to the end of the No. 2 slide groove (1403). , the No. 4 tension sensor (1415) detects that the No. 4 spring (1414) is compressed to a threshold value, and sends a signal to the No. 2 motor (1408) on the horizontal press-fit assembly, and the No. 2 motor (1408) drives the No. 2 screw (1409) to rotate, causing the No. 3 slider (1410) to move in the opposite direction until the block (1412) leaves the connection groove of the corresponding flow channel plate (18), releasing the flow channel plate (18), and at the same time the moving machine (1402) moves in the opposite direction to reset; S8: After the liquid pump (9) receives the signal sent by the torque sensor (507) in S5, the first forward injection valve (1102) and the first reverse discharge valve (1108) are reopened, and the liquid pump (9) injects the damping liquid into the first barrel cover (801) through the first forward injection pipe (1101). The damping liquid pushes the first push-pull rod (802) to move downward. At the same time, the original damping liquid in the first barrel cover (801) is discharged into the damping liquid tank through the first reverse discharge pipe (1107). The pull rod (802) drives the push-pull plate (803), the guide column (804) and the support plate (805) to move downward, and at the same time, the No. 3 spring (810) is deformed and extended. When the No. 3 tension sensor (811) detects that the deformation of the No. 3 spring (810) reaches the threshold value K2, a signal is sent to the control unit of the liquid pump (9) to stop pumping liquid and close the No. 1 forward injection valve (1102) and the No. 1 reverse discharge valve (1108). At this time, the main nozzle (807) and the auxiliary nozzle (808) both enter the outer tube (19); S9: After the control unit of the liquid pump (9) receives the signal sent by the No. 3 tension sensor (811) in S8, the No. 1 oil channel is disconnected, and the No. 3 oil channel is reconnected, and the No. 3 injection valve (1202) is opened. The liquid pump (9) injects the damping liquid into the cavity platform (806) through the No. 3 injection pipe (1201), and finally ejects the damping liquid from the nozzle holes on the main nozzle (807) and the auxiliary nozzle (808), acting on the inner wall of the outer tube (19) to defoam. After the flow meter (1203) detects that the injection flow rate reaches the threshold value L2, it sends a signal to the control unit of the liquid pump (9) and the vertical press assembly, and closes the No. 3 injection valve (1202); S10: After the control unit of the liquid pump (9) in S9 receives the signal sent by the flow meter (1203), the No. 3 oil channel is disconnected and the No. 4 oil channel is connected. The No. 4 forward injection valve (1602) and the No. 4 reverse discharge valve (1608) are opened. The liquid pump (9) injects the damping liquid into the No. 3 cylinder cover (1501) through the No. 4 forward injection pipe (1601). The damping liquid pushes the No. 3 push-pull rod (1502) to move downward. At the same time, the damping liquid originally in the No. 3 cylinder cover (1501) is discharged. The liquid is discharged into the damping liquid tank through the No. 4 reverse discharge pipe (1607), and the No. 3 push-pull rod (1502) drives the inner pressure plate (1503) and the outer pressure plate (1505) to move downward. At the same time, the No. 3 motor (1507) is started, and the power is output to the active bevel gear (1513) through the meshing transmission of the No. 4 gear (1508), the gear ring (1506), and the No. 5 gear (1512), thereby driving the clamping arm (1510) on the driven bevel gear (1511) to rotate downward and clamp the outer tube (19); S11: When the inner pressure plate (1503) and the outer pressure plate (1505) move downward and press the pedestal (602), the second spring (605) is deformed. After the second tension sensor (606) detects that the deformation of the second spring (605) reaches a threshold value, it sends a signal to the control unit of the liquid pump (9), closes the fourth forward injection valve (1602) and the fourth reverse discharge valve (1608), and opens the fourth reverse injection valve (1606) and the fourth forward discharge valve (1604). The liquid pump (9) injects the damping liquid into the third cylinder cover (1504) through the fourth reverse injection pipe (1605). 01), the damping fluid pushes the No. 3 push-pull rod (1502) to move upwards, and at the same time, the original damping fluid in the No. 3 cylinder cover (1501) is discharged into the damping fluid tank through the No. 4 positive discharge pipe (1603), and the No. 3 push-pull rod (1502) drives the inner pressure plate (1503), the outer pressure plate (1505) and the fixed outer tube (19) to move upwards for a distance, and the No. 2 spring (605) is restored. After the No. 2 tension sensor (606) detects that the deformation of the No. 2 spring (605) has returned to zero, it sends a signal to the control unit of the liquid pump (9) and the control unit of the No. 1 motor (502); S12: After receiving the signal sent by the No. 2 tension sensor (606), the control unit of the liquid pump (9) and the control unit of the No. 1 motor (502) stop injecting liquid into the No. 3 cylinder cover (1501), the No. 1 motor (502) drives the turning platform (501) to rotate and reset, the deformation of the torsion spring (506) is restored, and the torque sensor (507) detects that the deformation of the torsion spring (506) has returned to zero, and sends a signal to the control unit of the liquid pump (9), and the No. 4 reverse injection valve ( 1606) and the fourth positive drain valve (1604) are closed, the fourth positive injection valve (1602) and the fourth reverse drain valve (1608) are reopened, and the liquid pump (9) injects the damping liquid into the third cylinder cover (1501) through the fourth positive injection pipe (1601). The damping liquid pushes the third push-pull rod (1502) to move downward, and the fixed outer tube (19) is pressed onto the flow channel plate (18) of the assembled elastic buffer (17), completing the assembly.

Images