Venturi tube fully automatic assembly line

Abstract

The present invention provides a fully automatic assembly line for venturi tubes, comprising a workbench, a loading station, a material frame assembly, a manipulator, a pressing and assembling station, a first transfer and handling station, a welding station, a testing station, a second transfer and handling station and a marking station. The loading station comprises two groups of loaders arranged side by side. The manipulator is arranged between the loading station and the pressing and assembling station and is used for clamping the valve body transported by the loaders into the valve body tooling and clamping the valve cover into the valve cover tooling. The welding station is located on a side of the slide away from the manipulator, the first transfer and handling station is located on a side of the pressing and assembling station and the welding station, and is located at one end of the slide away from the manipulator. The first transfer and handling station clamps the valve body and the valve cover after the pressing and assembling on the pressing and assembling station into the welding station, and can clamp the welded valve body and the valve cover into the testing station. The second transfer and handling station is located on one side of the testing station, and the marking station is located on the other side of the testing station. The present invention has high integration and high processing efficiency, and is relatively time-saving and labor-saving.

Description

Technical Field

[0001] The invention relates to an assembly line, in particular to a fully automatic assembly line for a venturi tube. Background Art

[0002] The venturi tube is mainly used in the oil suction pipeline system of the automobile. It uses gas drainage to produce a siphon process so that the fuel in the fuel tank is sucked into the structure used in the system. However, the existing assembly processing of the valve body and valve cover of the venturi tube has not formed a highly integrated automated assembly line, so the processing efficiency is low and it is also relatively time-consuming and labor-intensive.

[0003] Therefore, there is an urgent need for a fully automatic assembly line for venturi tubes which is highly integrated, has high processing efficiency, and is relatively time-saving and labor-saving. Summary of the invention

[0004] The purpose of the present invention is to provide a fully automatic assembly line for venturi tubes, which has high integration, high processing efficiency, and is relatively time-saving and labor-saving.

[0005] The present invention provides the following technical solutions:

[0006] A fully automatic assembly line for a venturi tube comprises a workbench, a loading station located on one side of the workbench, and a material frame assembly located on the other side of the workbench; a manipulator, a pressing assembly station, a first transfer and handling station, and a welding station are arranged on the workbench near the loading station, a detection station, a second transfer and handling station, and a marking station are arranged on the workbench near the material frame assembly, and a material receiving port is also arranged on the workbench near the material frame assembly, and the bottom of the material receiving port is connected to a material receiving chute arranged toward the material frame assembly; the loading station comprises two sets of loading machines arranged side by side, and the two sets of loading machines are respectively used to lift and convey the valve body and valve cover of the venturi tube; the pressing assembly station comprises a slide and a valve body tooling and a valve cover tooling arranged on the slide and a driving electric cylinder for driving the valve cover tooling to press the valve body tooling; the manipulator is arranged between the loading station and the pressing and assembling station, and is used to clamp the valve body transported by the loading machine into the valve body tooling and to clamp the valve cover into the valve cover tooling; the welding station is located on the side of the slide away from the manipulator, the first transferring and handling station is located on the side of the pressing and assembling station and the welding station, and is located at one end of the slide away from the manipulator, the first transferring and handling station clamps the valve body and valve cover pressed and assembled on the pressing and assembling station into the welding station, and can clamp the welded valve body and valve cover into the inspection station, the second transferring and handling station is located on one side of the inspection station, the marking station is located on the other side of the inspection station, and the material receiving port is located at one end of the second transferring and handling station away from the inspection station.

[0007] Preferably, the loading machine includes an elevator and a collecting slide assembly, the collecting slide assembly includes a slide, a vibrator and an elastic pad, one end of the slide is provided with a material receiving port located below the elevator discharge port, the vibrator is located below the slide, and the fixed end of the vibrator is connected to the outer casing of the elevator through a mounting bracket, and its vibrating end is connected to a horizontal plate, and the bottom end of the elastic pad is installed on the horizontal plate, and its top end is supported below the slide by a connecting plate frame, and the other end of the slide extends toward the top of the workbench, and the end of the slide extending above the workbench is also provided with a displacement sensor for detecting the position of the workpiece.

[0008] Preferably, the slide can slide toward the first transfer station under the push of the first rodless cylinder on its lower side, and the sliding block of the first rodless cylinder is fixedly connected to the bottom side of the slide, and its fixed end is fixedly installed on the workbench.

[0009] Preferably, the first transfer and handling station includes a workbench, a first X-guide rail, a first Y-guide rail, a first Z-guide rail, a first X-direction slider, a first Y-direction slider, and a first Z-direction slider. The first X-direction slider is fixed to the workbench, and a first X-direction screw rod is mounted and fixed on the first X-direction slider. One end of the first X-direction screw rod is driven to rotate by a first X-direction motor. The first X-direction slider is slidably connected to the first X-direction slider and is sleeved outside the first X-direction screw rod and is connected to the first X-direction screw rod by a thread. The first Y-guide rail is fixedly arranged on the first X-direction slider, and a first Y-direction screw rod is mounted and fixed on the first Y-direction slider. One end of the first Y-direction screw rod is driven to rotate by a first Y-direction motor. Driven to rotate, the first Y-axis slider is slidably connected to the first Y-axis guide rail, and is sleeved outside the first Y-axis screw rod, and is connected to the first Y-axis screw rod by a thread. The first Z-axis guide rail is fixedly arranged on the first Y-axis slider, and the first Z-axis screw rod is mounted and fixed on the first Z-axis guide rail. One end of the first Z-axis screw rod is driven to rotate by the first Z-axis motor. The first Z-axis slider is slidably connected to the first Z-axis guide rail, and is sleeved outside the first Z-axis screw rod, and is connected to the first Z-axis screw rod by a thread. The first Z-axis slider is also provided with a first fixed frame, and the bottom end of the first fixed frame is connected to the first rotating cylinder, and the movable end of the first rotating cylinder is connected to the fixed end of the first pneumatic clamp.

[0010] Preferably, the welding station includes a rotary worktable, two groups of welding rotary tools arranged on the rotary worktable, and a laser welding head arranged on the worktable and facing a workpiece on a welding rotary tool. The welding rotary tool is symmetrically arranged about the rotation axis of the rotary worktable. A clamping cylinder is also provided on one side of the laser welding head. The clamping cylinder is fixed to the worktable through a cylinder bracket, and the movable end of the clamping cylinder is arranged toward the workpiece on the welding rotary tool.

[0011] Preferably, the detection station includes a leakage test station and a desorption test station; the leakage test station includes a rotating cylinder turntable, two groups of leakage test stations arranged on the rotating cylinder turntable, a leakage plugging head arranged around the leakage test station and connectable to the pipe mouth of the venturi tube, and a leakage propulsion cylinder connected to the leakage plugging head, the two groups of leakage test stations are symmetrically arranged on both sides of the rotation center of the rotating cylinder turntable, and the leakage propulsion cylinder can push the leakage plugging head to seal the pipe mouth of the venturi tube, and a leakage detection support is also provided between the two groups of leakage test stations. A frame is provided, on which a leak detector is installed, and the leak detector is connected to an air inlet arranged on one of the leakage sealing heads through a detection air pipe; the desorption test station includes a desorption test station, a desorption gas channel head arranged around the desorption test station and sealably connected to the pipe mouth of the venturi, and a desorption propulsion cylinder connected to the desorption gas channel head, and one of the desorption gas channel heads is connected to a gas source through an air inlet pipe connected to a pressure regulating gauge and a first flow meter, and other desorption gas channel heads requiring desorption detection are connected to a second flow meter through an air outlet pipe.

[0012] Preferably, the marking station includes a marking head, a second rodless cylinder, a marking station and a second rotary cylinder. A cylinder support is provided on the slider of the second rodless cylinder. The second rotary cylinder is installed on the cylinder support, and the movable end of the second rotary cylinder is connected to the marking station. The second rodless cylinder drives the marking station to move back and forth under the second transfer station and under the marking head through the matching slider thereon.

[0013] Preferably, the second transfer and handling station includes a table bracket, a linear slide rail arranged on the table bracket, a linear slider matched with the linear slide rail, a transfer plate arranged on the linear slider, a transfer drive cylinder for pushing the transfer plate to slide along the linear slide rail, and three groups of transfer cylinders fixed on the transfer plate, the movable ends of the transfer cylinders are connected to second pneumatic clamps, and the three groups of second pneumatic clamps include a first group of pneumatic clamps that can reciprocate between the material receiving port and the marking station, a second group of pneumatic clamps that can reciprocate between the marking station and the desorption test station, and a third group of pneumatic clamps that can reciprocate between the desorption test station and a leakage test station close to the desorption test station.

[0014] Preferably, it also includes a controller electrically connected to the loading station, the manipulator, the pressing and assembling station, the first transfer and handling station, the welding station and the testing station.

[0015] The beneficial effects of the present invention are as follows: the valve body and valve cover of the venturi tube are lifted and loaded respectively by the action of two sets of feeders arranged side by side, and a manipulator is arranged at the discharge end to realize the transition of the valve body and the valve cover to the pressing and assembling station, and then the valve cover tooling in the pressing and assembling station is controlled to press toward the valve body tooling to realize the combination of the valve cover and the valve body, and then the slide moves toward the first transfer and handling station, and is grasped by the first pneumatic clamp at the first transfer and handling station and sent to the welding part for assembly and welding, and after the welding is completed, the first pneumatic clamp can also weld the welding The good Venturi tube is grabbed and sent to the leakage test station for leakage test, and after the test is completed, the two groups of leakage test stations can be rotated by degrees so that the welded Venturi tube is under the third group of pneumatic clamps, and is grabbed by the third group of pneumatic clamps and sent to the desorption test station for desorption test, and then is grabbed by the second group of pneumatic clamps and sent to the marking station for marking, and then is grabbed by the first group of pneumatic clamps and sent to the material receiving port, thus realizing the entire assembly welding test marking process of the Venturi tube, which is integrated and highly automated, and saves time and labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 yes Figure 1 Rear view of

[0019] Figure 3 It is a schematic diagram of the structure of the valve body;

[0020] Figure 4 It is a schematic diagram of the structure of the valve cover;

[0021] Figure 5 It is a structural diagram of the feeder;

[0022] Figure 6 is a schematic diagram of the structure of the collection slide assembly;

[0023] Figure 7 It is a structural schematic diagram of a pressing assembly station;

[0024] Figure 8 This is a schematic diagram of the structure of the press-fit assembly station after the tank chain is removed;

[0025] Fig. 9 is a structural schematic diagram of a first rodless cylinder;

[0026] Fig.10 It is a structural schematic diagram of the valve body tooling;

[0027] Fig.11 It is a structural schematic diagram of the valve cover tooling;

[0028] Fig.12 It is a structural schematic diagram of the first transfer and handling station;

[0029] Fig.13 yes Fig.12 A partial enlarged view of part A;

[0030] Fig.14 It is a schematic diagram of the linkage structure of the first pneumatic clamp in the Z direction in the first transfer and handling station;

[0031] Fig.15 It is a schematic diagram of the structure of the welding station;

[0032] Fig.16 It is a structural schematic diagram of the second transfer and handling station;

[0033] Fig.17 It is a schematic diagram of the structure of the marking station;

[0034] Fig.18 It is a schematic diagram of the structure of the leakage test station;

[0035] Fig.19 It is a schematic diagram of the structure of the desorption test station;

[0036] Markings in the figure: 100 is the workbench, 200 is the material frame assembly, 300 is the manipulator, 400 is the material receiving port, 500 is the material receiving chute, 600 is the valve body, 700 is the valve cover, 1.0 is the loading station, 2.0 is the pressing and assembling station, 3.0 is the first transfer and handling station, 4.0 is the welding station, 5.0 is the second transfer and handling station, 6.0 is the marking station, 7.0 is the leakage test station, 8.0 is the desorption test station, 1.1 is the loading machine, 1.10 is the lifting machine, 1.11 is slideway, 1.12 is a vibrator, 1.13 is a mounting bracket, 1.14 is a horizontal plate, 1.15 is an elastic pad, 1.16 is a displacement sensor, 2.1 is a slide table, 2.2 is a valve body tooling, 2.3 is a valve cover tooling, 2.4 is a driving electric cylinder, 2.5 is a first rodless cylinder, 3.1 is a workbench, 3.2 is a first X-direction guide rail, 3.3 is a first Y-direction guide rail, 3.4 is a first Z-direction guide rail, 3.5 is a first X-direction slider, 3.6 is a first Y-direction slider, 3.7 3.1 is the first Z-direction slider, 3.2 is the first X-direction screw rod, 3.3 is the first Y-direction screw rod, 3.4 is the first Z-direction screw rod, 3.5 is the first fixed frame, 3.6 is the first rotating cylinder, 3.7 is the first pneumatic clamp, 4.1 is the welding rotating fixture, 4.2 is the laser welding head, 4.3 is the clamping cylinder, 4.4 is the rotating workbench, 5.1 is the table bracket, 5.2 is the linear slide rail, 5.3 is the linear slider, 5.4 is the transfer plate, 5.5 is the transfer cylinder, 5.6 is the transfer cylinder, 5.7 is the first fixed frame, 3.8 is the first X-direction screw rod, 3.9 is the first Y-direction screw rod, 3.10 is the first Z-direction screw rod, 3.11 is the first fixed frame, 3.12 is the first rotating cylinder, 3.13 is the first pneumatic clamp, 4.1 is the welding rotating fixture, 4.2 is the laser welding head, 4.3 is the clamping cylinder, 4.4 is the rotating workbench, 5.1 is the table bracket, 5.2 is the linear slide rail, 5.3 is the linear slider, 5.4 is the transfer plate, 5.5 is the transfer cylinder, 5.6 is the first fixed frame, 3.7 is the first rotating cylinder, 3.8 is the first rotating cylinder, 3.9 is the first rotating cylinder, 4.1 is the first rotating .6 is the second pneumatic gripper, 5.7 is the transfer drive cylinder, 6.1 is the marking head, 6.2 is the second rodless cylinder, 6.3 is the marking station, 6.4 is the second rotary cylinder, 7.1 is the rotary cylinder turntable, 7.2 is the leakage test station, 7.3 is the leakage plugging head, 7.4 is the leakage propulsion cylinder, 7.5 is the leakage detection bracket, 7.6 is the leak detector, 7.7 is the detection air pipe, 8.1 is the desorption test station, 8.2 is the desorption gas channel head, and 8.3 is the desorption propulsion cylinder. DETAILED DESCRIPTION

[0037] Combination Figures 1 to 19The structure cross-sectional view of a fully automatic assembly line of a venturi tube is shown. In this embodiment, it includes a workbench 100, a loading station 1.0 located on one side of the workbench 100, and a material frame assembly 200 located on the other side of the workbench 100; a manipulator 300, a pressing assembly station 2.0, a first transfer station 3.0 and a welding station 4.0 are arranged on the workbench 100 near the loading station 1.0, and an inspection station, a second transfer station 5.0 and a marking station 6.0 are arranged on the workbench 100 near the material frame assembly 200. A material receiving port 400 is also provided on the workbench 100 near the material frame assembly 200, and a material receiving chute 500 is connected to the bottom of the material receiving port 400 and is arranged toward the material frame assembly 200; the loading station 1.0 includes two sets of loading machines 1.1 arranged side by side, and the two sets of loading machines 1.1 are respectively used to lift the valve body 600 and the valve cover 700 of the conveying venturi; the pressing assembly station 2.0 includes a slide 2.1 and a valve body tooling 2.2, a valve cover tooling 2.3 and a driving valve cover tooling 2.3 arranged on the slide 2.1 toward the valve body The manipulator 300 is arranged between the loading station 1.0 and the pressing and assembling station 2.0, and is used to clamp the valve body 600 delivered by the loading machine 1.1 into the valve body tooling 2.2 and clamp the valve cover 700 into the valve cover tooling 2.3, and the valve body and the valve cover are pressed by the pressing parts at the end of the pressing rotating motor on the valve body tooling 2.2 and the valve cover tooling 2.3, so as to press and assemble; the welding station 4.0 is located on the side of the slide 2.1 away from the manipulator 300, and the first transfer and handling station 3. 0 is located on one side of the pressing and assembling station 2.0 and the welding station 4.0, and is located at one end of the slide 2.1 away from the manipulator 300. The first transfer and handling station clamps the valve body 600 and the valve cover 700 pressed and assembled on the pressing and assembling station 2.0 and sends them to the welding station 4.0, and can clamp the welded valve body 600 and the valve cover 700 and send them to the inspection station. The second transfer and handling station 5.0 is located on one side of the inspection station, the marking station 6.0 is located on the other side of the inspection station, and the material receiving port 400 is located at one end of the second transfer and handling station 5.0 away from the inspection station.

[0038] The loader 1.1 includes an elevator 1.10 and a collecting slide assembly, and the collecting slide assembly includes a slide 1.11, a vibrator 1.12 and an elastic pad 1.15. One end of the slide 1.11 is provided with a material receiving port 400 located below the discharge port of the elevator 1.10, the vibrator 1.12 is located below the slide 1.11, and the fixed end of the vibrator 1.12 is connected to the outer casing of the elevator 1.10 through a mounting bracket 1.13, and its vibrating end is connected to a horizontal plate 1.14, and the bottom end of the elastic pad 1.15 is installed on the horizontal plate 1.14, and its top end is supported below the slide 1.11 through a connecting plate frame, and the other end of the slide 1.11 extends toward the top of the workbench 100, and the end of the slide 1.11 extending above the workbench 100 is also provided with a displacement sensor 1.16 for detecting the position of the workpiece.

[0039] The slide 2.1 can slide toward the first transfer station 3.0 under the push of the first rodless cylinder 2.5 on its lower side, and the sliding block of the first rodless cylinder 2.5 is fixedly connected to the bottom side of the slide 2.1, and its fixed end is fixedly installed on the workbench 100.

[0040] The first transfer and handling station 3.0 includes a work frame 3.1, a first X-direction guide rail 3.2, a first Y-direction guide rail 3.3, a first Z-direction guide rail 3.4, a first X-direction slider 3.5, a first Y-direction slider 3.6, and a first Z-direction slider 3.7. The first X-direction guide rail 3.2 is fixed on the work frame 3.1, and a first X-direction screw rod 3.8 is mounted and fixed on the first X-direction guide rail 3.2, one end of the first X-direction screw rod 3.8 is driven to rotate by a first X-direction motor, the first X-direction slider 3.5 is slidably connected to the first X-direction guide rail 3.2, and is sleeved outside the first X-direction screw rod 3.8, and is connected to the first X-direction screw rod 3.8 by a thread, the first Y-direction guide rail 3.3 is fixedly arranged on the first X-direction slider 3.5, and a first Y-direction screw rod 3.9 is mounted and fixed on the first Y-direction guide rail 3.3, one end of the first Y-direction screw rod 3.9 is driven to rotate by the first Y-direction motor Rotation, the first Y-direction slider 3.6 is slidably connected to the first Y-direction guide rail 3.3, and is sleeved outside the first Y-direction screw rod 3.9, and is connected to the first Y-direction screw rod 3.9 by a thread. The first Z-direction guide rail 3.4 is fixedly arranged on the first Y-direction slider 3.6, and the first Z-direction screw rod 3.10 is mounted and fixed on the first Z-direction guide rail 3.4. One end of the first Z-direction screw rod 3.10 is driven to rotate by the first Z-direction motor. The first Z-direction slider 3.7 is slidably connected to the first Z-direction guide rail 3.4, and is sleeved outside the first Z-direction screw rod 3.10, and is connected to the first Z-direction screw rod 3.10 by a thread. The first Z-direction slider 3.7 is also provided with a first fixed frame 3.11, and the bottom end of the first fixed frame 3.11 is connected to the first rotating cylinder 3.12, and the movable end of the first rotating cylinder 3.12 is connected to the fixed end of the first pneumatic clamp 3.13.

[0041] The welding station 4.0 includes a rotary table 4.4, two sets of welding rotary tools 4.1 arranged on the rotary table 4.4, and a laser welding head 4.2 arranged on the table 100 and facing a workpiece on the welding rotary tool 4.1. The welding rotary tool 4.1 is symmetrically arranged about the rotation axis of the rotary table 4.4. A clamping cylinder 4.3 is also provided on one side of the laser welding head 4.2. The clamping cylinder 4.3 is fixed to the table 100 through a cylinder bracket. The movable end of the clamping cylinder 4.3 is arranged toward the workpiece on the welding rotary tool 4.1. After the rotary table rotates the venturi in the welding rotary tool 4.1 to the welding position, the clamping cylinder 4.3 presses down to position the venturi, thereby loosening the venturi, and the welding rotary tool realizes self-rotation under the drive of the rotating motor connected below, thereby completing the laser welding of the venturi assembly position.

[0042] The detection station includes a leakage test station 7.0 and a desorption test station 8.0; the leakage test station 7.0 includes a rotary cylinder turntable 7.1, two sets of leakage test stations 7.2 arranged on the rotary cylinder turntable 7.1, a leakage plugging head 7.3 arranged around the leakage test station 7.2 and connected to the pipe mouth of the venturi tube, and a leakage propulsion cylinder 7.4 connected to the leakage plugging head 7.3, the two sets of leakage test stations 7.2 are symmetrically arranged on both sides of the rotation center of the rotary cylinder turntable 7.1, and the leakage propulsion cylinder 7.4 can The leakage plugging head 7.3 is pushed to plug the mouth of the venturi tube. One of the leakage plugging heads can also be connected to the two sets of leakage test stations 7.2 through a pipeline. A leakage detection bracket 7.5 is also provided between the two sets of leakage test stations 7.2. A leak detector 7.6 is installed on the leak detection bracket 7.5. The leak detector 7.6 is connected to the air inlet provided on one of the leakage plugging heads 7.3 through the detection air pipe 7.7. The leakage propulsion cylinders 7.4 at the three mouths of the venturi tube are respectively actuated to seal all the mouths of the venturi tube through the leakage plugging head to form a completely sealed cavity. At this time, the leak detector starts to inflate the cavity through the detection air pipe 7.7. When the air pressure reaches the pressure value preset by the leak detector, the inflation is stopped and the pressure is maintained. At the same time, the leak detector will automatically calculate the inflation volume and inflation pressure, and automatically calculate a simulated standard test data. The leak detector will perform leakage detection during the pressure maintenance stage.

[0043] The desorption test station 8.0 includes a desorption test station 8.1, a desorption gas channel head 8.2 which is arranged around the desorption test station 8.1 and can be connected to the pipe mouth of the venturi tube for sealing, and a desorption propulsion cylinder 8.3 connected to the desorption gas channel head 8.2, and one of the desorption gas channel heads 8.2 is connected to the gas source through an inlet pipe connected to a pressure regulating gauge and a first flow meter, and the other desorption gas channel heads that need desorption detection are connected to the second flow meter through an outlet pipe. When the desorption test is required, the desorption propulsion cylinder 8.3 at the pipe mouth of the venturi tube can be respectively actuated to push the desorption gas channel head 8.2 to be sealed at the pipe mouth, and the air inlet of the venturi tube is set, and ventilation is carried out through the inlet pipe. By detecting the gas outlet at the pipe mouth to be detected for desorption, the desorption test of this pipe mouth is realized, that is, when the gas outlet of this pipe mouth reaches the set standard, the venturi tube is assembled qualified.

[0044] The marking station 6.0 includes a marking head 6.1, a second rodless cylinder 6.2, a marking station 6.3 and a second rotating cylinder 6.4. A cylinder support is provided on the slider of the second rodless cylinder 6.2. The second rotating cylinder 6.4 is installed on the cylinder support, and the movable end of the second rotating cylinder 6.4 is connected to the marking station 6.3. The second rodless cylinder 6.2 drives the marking station 6.3 to move back and forth under the second transfer station 5.0 and under the marking head 6.1 through the matching slider thereon.

[0045] The second transfer and handling station 5.0 includes a table bracket 5.1, a linear slide 5.2 arranged on the table bracket 5.1, a linear slider 5.3 cooperating with the linear slide 5.2, a transfer plate 5.4 arranged on the linear slider 5.3, a transfer drive cylinder 5.7 for pushing the transfer plate to slide along the linear slide, and three groups of transfer cylinders 5.5 fixed on the transfer plate 5.4, the movable ends of the transfer cylinders 5.5 are connected to second pneumatic clamps 5.6, and the three groups of second pneumatic clamps 5.6 include a first group of pneumatic clamps that can reciprocate between the material receiving port 400 and the marking station 6.3, a second group of pneumatic clamps that can reciprocate between the marking station 6.3 and the desorption test station 8.1, and a third group of pneumatic clamps that can reciprocate between the desorption test station 8.1 and a leakage test station 7.2 close to the desorption test station 8.1.

[0046] It also includes a controller electrically connected to the loading station 1.0, the robot 300, the pressing and assembling station 2.0, the first transfer and handling station 3.0, the welding station 4.0 and the testing station.

[0047] The working principle of the present invention is as follows: the valve body 600 and the valve cover 700 of the venturi tube are lifted and loaded respectively by the action of two sets of feeders 1.1 arranged side by side, and a manipulator is arranged at the discharge end to realize the transition of the valve body and the valve cover to the pressing assembly station 2.0, and then the valve cover tooling 2.3 in the pressing assembly station 2.0 is controlled to press toward the valve body tooling 2.2 to realize the combination of the valve cover and the valve body, and then the slide moves toward the first transfer and handling station, and is grasped by the first pneumatic clamp 3.13 of the first transfer and handling station and sent to the welding part for assembly welding, and after the welding is completed, the first pneumatic clamp 3.13 can also grasp the welded venturi and send it to the leakage test station 7.0 A leakage test is performed. The leakage test station 7.2 and the desorption test station 8.1 are used to place the venturi tube to be tested. After the test is completed, the two sets of leakage test stations 7.2 can be rotated 180 degrees by rotating the rotary cylinder turntable 7.1, so that the welded venturi tube is under the third set of pneumatic grippers. The venturi tube is grasped by the third set of pneumatic grippers and sent to the desorption test station 8.1 for desorption test. Then, the venturi tube is grasped by the second set of pneumatic grippers and sent to the marking station for marking. Then, the venturi tube is grasped by the first set of pneumatic grippers and sent to the material receiving port 400, thereby realizing the entire assembly welding test marking process of the venturi tube. The process is integrated, has a high degree of automation, and is relatively time-saving and labor-saving.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fully automatic assembly line for venturi tubes, characterized in that: It includes a workbench, a loading station located on one side of the workbench, and a material frame assembly located on the other side of the workbench; a manipulator, a pressing and assembling station, a first transfer and handling station, and a welding station are arranged on the workbench near the loading station, a detection station, a second transfer and handling station, and a marking station are arranged on the workbench near the material frame assembly, and a material receiving port is also arranged on the workbench near the material frame assembly, and the bottom of the material receiving port is connected to a material receiving chute arranged toward the material frame assembly; The loading station includes two sets of loading machines arranged side by side, and the two sets of loading machines are respectively used to lift the valve body and the valve cover of the conveying venturi; The pressing and assembling station comprises a slide, a valve body tooling, a valve cover tooling and a driving electric cylinder for driving the valve cover tooling to press the valve body tooling arranged on the slide; The manipulator is arranged between the feeding station and the pressing assembly station, and is used to clamp the valve body conveyed by the feeding machine and send it into the valve body tooling, and to clamp the valve cover and send it into the valve cover tooling; The welding station is located on a side of the slide away from the manipulator, the first transfer and handling station is located on a side of the pressing assembly station and the welding station, and is located at one end of the slide away from the manipulator, the first transfer and handling station clamps the valve body and valve cover pressed and assembled on the pressing assembly station and sends them to the welding station, and can clamp the welded valve body and valve cover and send them to the testing station, the second transfer and handling station is located on one side of the testing station, the marking station is located on the other side of the testing station, and the material receiving port is located at one end of the second transfer and handling station away from the testing station; The feeder includes an elevator and a collecting slide assembly, and the collecting slide assembly includes a slide, a vibrator and an elastic pad. One end of the slide is provided with a material receiving port located below the discharge port of the elevator, the vibrator is located below the slide, and the fixed end of the vibrator is connected to the outer shell of the elevator through a mounting bracket, and its vibrating end is connected to a horizontal plate, and the bottom end of the elastic pad is installed on the horizontal plate, and its top end is supported below the slide by a connecting plate frame, and the other end of the slide extends toward the top of the workbench, and the end of the slide extending above the workbench is also provided with a displacement sensor for detecting the position of the workpiece; The slide table can slide toward the first transfer station under the push of the first rodless cylinder at its lower side, and the sliding block of the first rodless cylinder is fixedly connected to the bottom side of the slide table, and its fixed end is fixedly installed on the workbench; The testing station includes a leakage testing station and a desorption testing station; The leakage test station includes a rotating cylinder turntable, two groups of leakage test stations arranged on the rotating cylinder turntable, a leakage plugging head arranged around the leakage test station and connected to the pipe mouth of the venturi tube, and a leakage propulsion cylinder connected to the leakage plugging head, the two groups of leakage test stations are symmetrically arranged on both sides of the rotation center of the rotating cylinder turntable, and the leakage propulsion cylinder can push the leakage plugging head to plug the pipe mouth of the venturi tube, and a leakage detection bracket is also arranged between the two groups of leakage test stations, and a leak detector is installed on the leak detection bracket, and the leak detector is connected to the air inlet arranged on one of the leakage plugging heads through a detection air pipe; The desorption test station includes a desorption test station, a desorption gas channel head arranged around the desorption test station and sealably connected to the pipe mouth of the venturi tube, and a desorption propulsion cylinder connected to the desorption gas channel head, and one of the desorption gas channel heads is connected to the gas source through an air inlet pipe connected to a pressure regulator and a first flow meter, and the other desorption gas channel heads that need desorption detection are connected to the second flow meter through an air outlet pipe; The marking station includes a marking head, a second rodless cylinder, a marking station and a second rotating cylinder, a cylinder support is provided on the slider of the second rodless cylinder, the second rotating cylinder is installed on the cylinder support, and the movable end of the second rotating cylinder is connected to the marking station, and the second rodless cylinder drives the marking station to move back and forth under the second transfer station and under the marking head through the slider matched thereon; The second transfer and handling station includes a table bracket, a linear slide rail arranged on the table bracket, a linear slider matched with the linear slide rail, a transfer plate arranged on the linear slider, a transfer drive cylinder for pushing the transfer plate to slide along the linear slide rail, and three groups of transfer cylinders fixed on the transfer plate, the movable ends of the transfer cylinders are connected to second pneumatic clamps, and the three groups of second pneumatic clamps include a first group of pneumatic clamps that can reciprocate between the material receiving port and the marking station, a second group of pneumatic clamps that can reciprocate between the marking station and the desorption test station, and a third group of pneumatic clamps that can reciprocate between the desorption test station and a leakage test station close to the desorption test station.

2. The fully automatic venturi assembly line according to claim 1, characterized in that: The first transfer and handling station includes a work frame, a first X-guide rail, a first Y-guide rail, a first Z-guide rail, a first X-direction slider, a first Y-direction slider, and a first Z-direction slider. The first X-guide rail is fixed to the work frame, and a first X-direction screw rod is mounted and fixed on the first X-guide rail. One end of the first X-direction screw rod is driven to rotate by a first X-direction motor. The first X-direction slider is slidably connected to the first X-direction guide rail and is sleeved outside the first X-direction screw rod. At the same time, it is connected to the first X-direction screw rod by a thread. The first Y-guide rail is fixedly arranged on the first X-direction slider, and a first Y-direction screw rod is mounted and fixed on the first Y-direction guide rail. One end of the first Y-direction screw rod is driven to rotate by the first Y-direction motor. The first Y-direction slider is slidably connected to the first Y-direction guide rail, and is sleeved outside the first Y-direction screw rod, and is connected to the first Y-direction screw rod by a thread. The first Z-direction guide rail is fixedly arranged on the first Y-direction slider, and a first Z-direction screw rod is mounted and fixed on the first Z-direction guide rail. One end of the first Z-direction screw rod is driven to rotate by a first Z-direction motor. The first Z-direction slider is slidably connected to the first Z-direction guide rail, and is sleeved outside the first Z-direction screw rod, and is connected to the first Z-direction screw rod by a thread. The first Z-direction slider is also provided with a first fixed frame, and the bottom end of the first fixed frame is connected to a first rotating cylinder, and the movable end of the first rotating cylinder is connected to the fixed end of the first pneumatic clamp.

3. The fully automatic assembly line of a venturi tube according to claim 2, characterized in that: The welding station includes a rotary worktable, two groups of welding rotary tools arranged on the rotary worktable, and a laser welding head arranged on the worktable and facing a workpiece on the welding rotary tool. The welding rotary tool is symmetrically arranged about the rotation axis of the rotary worktable. A clamping cylinder is also provided on one side of the laser welding head. The clamping cylinder is fixed to the worktable through a cylinder bracket, and the movable end of the clamping cylinder is arranged toward the workpiece on the welding rotary tool.

4. The fully automatic venturi assembly line according to claim 1, characterized in that: It also includes a controller electrically connected to the loading station, the manipulator, the pressing and assembling station, the first transfer and handling station, the welding station and the testing station.

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