Automobile trunk support rod assembly production line and method

Abstract

The present invention discloses an automobile trunk support rod assembly production line and method thereof, including a conical tube riveting mechanism that is sequentially arranged to rivet a terminal block and a conical tube together; a spring sheet sleeve riveting mechanism that pushes and installs a positioned spring sheet and a positioner into a spring sheet sleeve and rivets them together; an outer sleeve pushing mechanism that rotates and inserts a spiral oil-injected conical tube assembly into a spring sheet sleeve assembly, and sequentially injects oil and pushes the riveted spring sheet sleeve with a large ball head into a support sleeve and an outer sleeve to form an outer sleeve assembly; a spring and spring sleeve assembly mechanism that inserts both ends of the spring into the outer sleeve assembly and the spring sleeve after detection and oil injection; a ball head riveting mechanism that pushes the spring sleeve and the outer sleeve assembly into place and rivets large and small ball heads; and a functional testing mechanism that performs functional testing and marking on the assembled product. Through the above-mentioned method, the present invention can assemble the automobile trunk support rod together and perform functional testing and marking.

Description

Technical Field

[0001] The invention relates to the technical field of automated assembly, and in particular to an automobile trunk support rod assembly production line and a method thereof. Background Art

[0002] The car trunk support rod is a part that plays a supporting role after the trunk is opened. The existing trunk support rods are mainly of three types: hydraulic, spring and electric. There are many design accessories for the car trunk support rod, including terminal stops, C-rings, tapered tubes, spring leaves, locators, spring leaf sleeves, large ball heads, support sleeves, outer sleeves, springs, spring sleeves, and small ball heads, etc., which involve riveting of multiple rotating surfaces. Currently, ordinary riveting equipment cannot meet the riveting requirements of rotating surfaces. It also involves the positioning and installation of spring leaves and locators. Two sets of upper and lower spring leaves need to be buckled on both sides of the locator, and the assembly needs to be pushed into the sleeve, which makes assembly difficult. It also involves the installation of the spring. Since the spring is relatively long, the middle area of ​​the spring is exposed before assembly. If the spring sleeves and outer sleeves on both sides of the spring are directly pressed, the spring is easily deformed, especially radially deviating from the insertion path, which makes assembly difficult.

[0003] Based on the above defects and shortcomings, it is necessary to improve the existing technology and design a car trunk support rod assembly production line and method. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide an automobile trunk support rod assembly production line and method thereof, which can assemble automobile trunk support rods together and perform function detection and marking to ensure product assembly quality.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide an automobile trunk support rod assembly production line, which includes a conical tube riveting mechanism that rivets the terminal stopper and the conical tube together in sequence; a spring sheet sleeve riveting mechanism that pushes and installs the positioned spring sheet and the positioner into the spring sheet sleeve and rivets them together; an outer sleeve pushing mechanism that rotates and inserts the spiral oil-filled conical tube assembly into the spring sheet sleeve assembly, pushes and installs the riveted large ball head, and sequentially injects oil and pushes the spring sheet sleeve with the riveted large ball head into the support sleeve and the outer sleeve to form an outer sleeve assembly; a spring and spring sleeve assembly mechanism that inserts the two ends of the spring into the outer sleeve assembly and the spring sleeve after inspection and oil injection; a ball head riveting mechanism that pushes the spring sleeve and the outer sleeve assembly into place, pushes and installs the small ball head, and presses the large and small ball heads; a functional testing mechanism that performs functional testing and marking on the assembled products;

[0006] The conical tube riveting mechanism comprises a first frame, a press machine, a rotary riveting machine, a linear module, a transfer rack, a material receiving platform, a conical tube pushing device, a press-fitting body pushing device and a detection and error prevention device. The first frame is equipped with a press machine for pressing a terminal stopper and a C-shaped ring, a rotary riveting machine is arranged at the rear of the press machine, a linear module is arranged at one side of the rotary riveting machine, and the linear module drives the transfer rack to move. The transfer rack is equipped with a material receiving platform for placing conical tubes, a conical tube pushing device for pushing conical tubes into the rotary riveting machine, and a press-fitting body pushing device for pushing the terminal stopper and the C-shaped ring press-fitting body into the rotary riveting machine. The other side of the rotary riveting machine is equipped with a detection and error prevention device for resisting the conical tube; the rotary riveting machine comprises a rotary riveting frame, a hollow rotating platform, a servo motor, a rotating seat, a riveting bracket, a chassis, a riveting head assembly, a limit ring, a baffle and a and a power mechanism, a hollow rotating platform is vertically installed on the rotary riveting machine frame, the hollow rotating platform is driven to rotate by a servo motor, a rotating seat is installed at the rotating end of the hollow rotating platform, a mounting hole for placing a conical tube is opened in the middle of the rotating seat, the middle opening of the hollow rotating platform is a feed port and is opposite to the mounting hole, a riveting bracket is installed on the workbench at the outer end of the mounting hole, a chassis is vertically installed on the riveting bracket, a riveting hole for passing the product is opened in the middle of the chassis, three groups of rivet head assemblies arranged around the rivet hole are installed at equal angles on the chassis, a limiting ring is rotatably installed on the chassis, the limiting ring is rotatably matched with the rivet head assembly, and the rotation of the limiting ring drives the three groups of rivet head assemblies to shrink toward the center or spread toward the surroundings synchronously, a baffle is installed at the outer end of the limiting ring, and a power mechanism for driving the limiting ring to rotate is installed on the top of the rotary riveting machine frame;

[0007] The riveting head assembly comprises a limit block, a T-shaped block, a riveting head, a guide wheel and a reset spring. The two limit blocks are fixed to the chassis. A T-shaped block is slidably installed between the two limit blocks. A riveting head is rotatably installed at one end of the lower side of the T-shaped block near the riveting hole. The riveting head is in the shape of a rotating body and has an annular riveting convex surface at the outer end. A guide wheel matching the inner wall of the limit ring is rotatably installed at the upper end of the T-shaped block. The extensions on both sides of the T-shaped block are elastically connected to the limit blocks through the reset spring.

[0008] The inner wall of the limiting ring is an annular surface, and three groups of retreat grooves connected to the annular surface are arranged at equal angles on the limiting ring. Three groups of cam followers rollingly connected to the inner wall of the limiting ring are installed on the chassis. When the limiting ring rotates until the annular surface rolls in contact with the guide wheel, the annular surface applies pressure to the T-shaped block, and the T-shaped block moves toward the riveting hole, and the riveting head rivets the product.

[0009] Preferably, a double-station discharge chute is provided on the material receiving platform, and a corresponding optical fiber for identifying the product is installed on the outside of the discharge chute. One discharge chute cooperates with the tapered tube pushing device, and the other discharge chute is connected to the rotary riveting machine to place the riveted tapered tube.

[0010] The conical tube pushing device comprises a rodless cylinder mounted on the side end of the material receiving platform through a bracket, a push plate driven by the rodless cylinder to move along the direction of the material discharge chute, and a conical tube push rod mounted on the push plate, the conical tube push rod is opposite to the conical tube in the material discharge chute, and the front end of the conical tube push rod is provided with a conical portion capable of inserting the conical tube;

[0011] The press-fit body pushing device comprises a first cylinder, a first push plate, a press-fit body carrier, a second cylinder, a second push plate and a press-fit body push rod, wherein the first cylinder is mounted on a transfer rack, the first cylinder drives the first push plate to slide along the transfer rack, a press-fit body carrier for positioning and placing the press-fit body is mounted on the first push plate, a second cylinder is also mounted on the first push plate, the second cylinder drives the second push plate to slide on the first push plate, the press-fit body push rod is mounted on the second push plate through a base, and the press-fit body push rod is opposite to the product press-fit body on the press-fit body carrier;

[0012] The detection error prevention device includes a detection bracket, a push rod cylinder, a transfer plate, a push rod, a guide plate, a detection plate, a pen-shaped cylinder, a detection push plate and a linear displacement sensor. The push rod cylinder is installed on the top plate of the detection bracket, and the push rod cylinder drives the transfer plate to move toward the riveting machine. The push rod is installed on the transfer plate, and the guide plate is also installed on the top plate of the detection bracket. The guide plate is provided with a guide groove for facilitating the movement of the push rod. The detection plate is installed at the lower end of the transfer plate. The detection bracket is installed with a pen-shaped cylinder, and the pen-shaped cylinder drives the detection push plate to move toward the detection plate. The detection bracket is also installed with a linear displacement sensor opposite to the detection push plate.

[0013] Preferably, the spring leaf sleeve riveting mechanism comprises a second frame, a single-axis linear module, a movable plate, a spring leaf sleeve positioning and pushing device, a spring leaf sleeve length measuring and error-proofing device, a spring positioning and pushing device, a second rotary riveting machine, a pushing device and a spring leaf sleeve conveying line. The second frame is equipped with a single-axis linear module and a second rotary riveting machine. The single-axis linear module drives the movable plate to move horizontally. The movable plate is equipped with a spring leaf sleeve positioning and pushing device for pushing the spring leaf sleeve into the second rotary riveting machine and a spring positioning and pushing device for pushing the spring into the spring leaf sleeve at the second rotary riveting machine. The second frame is equipped with a spring leaf sleeve length measuring and error-proofing device used in conjunction with the spring leaf sleeve positioning and pushing device. The side end of the second rotary riveting machine is provided with a pushing device for positioning and pushing out the riveted product. The second frame is equipped with a spring leaf sleeve conveying line pointing to the outer sleeve pushing mechanism.

[0014] Preferably, the spring positioning and pushing device comprises a positioning bracket, a fixed seat, a lifting and positioning mechanism, a limiting mechanism, a flip cover installation mechanism and a spring piece pushing device, the positioning bracket is installed on the movable plate, a fixed seat is installed on the top of the positioning bracket, a semicircular through groove for placing a positioner and a spring piece is opened on the fixed seat, a lifting and positioning mechanism for positioning the spring piece is installed below the fixed seat, a limiting mechanism for positioning and pressing the spring piece is installed on the second frame at the side end of the movable plate, a lifting inclined surface cooperating with the lifting and positioning mechanism is provided on the limiting mechanism, a flip cover installation mechanism is rotatably installed at the rear end of the fixed seat, and a spring piece pushing device for pushing the assembled spring piece into the second riveting machine is provided on the right side of the fixed seat;

[0015] The lifting and positioning mechanism comprises a column, a floating plate, a buffer spring, a first positioning block and a second positioning block. A column is fixed between the fixed seat and the bottom plate of the positioning bracket, a floating plate is sleeved on the column, a buffer spring is sleeved on the column between the floating plate and the fixed seat, two first positioning blocks and a second positioning block passing through the fixed seat are installed on the floating plate, a positioning protrusion is inserted into the opening of the positioning spring sheet at the upper end of the first positioning block, and positioning protrusions on the end faces of the positioning spring sheets are extended upward at the outer ends of the two second positioning blocks;

[0016] The limiting mechanism comprises a vertical plate, an upper limit plate, a support plate, a lower spring sheet pressure block and an upper spring sheet support block. The vertical plate is fixed on the workbench, an upper limit plate is installed on the top of the vertical plate, and the protruding end of the upper limit plate is provided with a jacking inclined surface matched with the bottom surface of the floating plate. An opening for limiting the lower position of the floating plate is installed on the side plate of the positioning bracket, and both ends of the floating plate are inserted in the opening. A support plate is also installed on the upper limit plate, and a lower spring sheet pressure block for pressing the lower spring sheet is installed in the middle of the support plate, and upper spring sheet support blocks for limiting and supporting both ends of the upper spring sheet are installed on both sides of the support plate;

[0017] The flip cover installation mechanism comprises an upper cover seat rotatably mounted on the side end of the fixed seat and a flip cylinder driving the upper cover seat to rotate, and the flip cylinder is movably mounted on the positioning bracket.

[0018] Preferably, the outer sleeve pushing mechanism comprises a third frame, an oil injection pushing device mounted on the third frame for injecting oil into the tapered tube and pushing it into the spring sheet sleeve, a riveting device for riveting the tapered tube and the spring sheet sleeve together, a transfer and transport device for transporting the product to be riveted to the riveting device, a clamping device for butting the riveted product, and a second oil injection pushing device for sleeve-supporting the outer sleeve and the outer sleeve;

[0019] The oil injection pushing device includes a spring sheet sleeve positioning component, a tapered tube positioning component, a spiral feeding component and a lifting oil injection valve which are arranged in sequence horizontally. The spiral feeding component clamps the tapered tube at the tapered tube positioning component and then rotates and pushes it into the spring sheet sleeve at the spring sheet sleeve positioning component. A lifting oil injection valve is arranged above the spiral feeding component. The spring sheet sleeve positioning component includes a first positioning cylinder driven by the first positioning cylinder to move longitudinally, a spring sheet sleeve carrier and a large ball head carrier installed on the first positioning push plate through a bracket. A positioning groove is arranged on the spring sheet sleeve carrier, and the left side of the positioning groove is a reference surface. A clamping cylinder is installed on the sleeve carrier, and a spring sleeve clamp is installed on the piston rod flange plate of the clamping cylinder; the tapered tube positioning assembly includes a second positioning cylinder, a second positioning push plate driven by the second positioning cylinder to move longitudinally, a positioning jacking cylinder installed on the second positioning push plate through a bracket, and a tapered tube carrier driven up and down by the positioning jacking cylinder, a positioning groove is provided on the tapered tube carrier, and a positioning reference plate is installed on the third frame on the right side of the tapered tube carrier; the spiral feeding assembly includes a servo linear module, a feed push plate driven by the servo linear module, a two-claw chuck installed on the feed push plate, and a reduction motor driving the two-claw chuck;

[0020] The riveting device includes a third rotary riveting machine, a feeding linear module, a feeding push plate, an assembly receiving platform, a large ball head pushing assembly, a first pushing assembly and a second pushing assembly. The third rotary riveting machine is provided with a feeding linear module at the side end, the feeding linear module drives the feeding push plate to move, the assembly receiving platform and the large ball head pushing assembly are installed on the feeding push plate, a double-station discharge chute is provided on the assembly receiving platform, a jacking module for lifting the riveted product is provided at the bottom of the discharge chute, and a spring sheet sleeve assembly at the assembly receiving platform is pushed to the first of the third rotary riveting machine. Pushing assembly, a second pushing assembly for pushing out the riveted product is arranged on the other side of the third rotary riveting machine; the structure of the large ball head pushing assembly is the same as the structure of the pressing body pushing device of the tapered tube riveting mechanism; the first pushing assembly includes a pushing machine frame, a pushing plate, a synchronous wheel, a synchronous belt, a pushing motor and a pushing rod, the pushing plate is slidably mounted on the pushing machine frame through a linear slide rail, two synchronous wheels are mounted on the pushing machine frame, the two synchronous wheels are synchronously connected through a synchronous belt, one of the synchronous wheels is driven to rotate by the pushing motor, the synchronous belt is fixedly connected to the pushing plate through a belt pressure plate, and a pushing rod is mounted on the pushing plate;

[0021] The material clamping device comprises a belt module, a material clamping push plate driven by the belt module, a material clamping chuck mounted on the material clamping push plate, and a material clamping motor driving the material clamping chuck to clamp the material and rotate.

[0022] Preferably, the spring and spring sleeve assembly mechanism comprises a fourth frame, a spring transfer and rotation device, a spring feeding detection device, an assembly platform and a spring sleeve positioning detection device, the fourth frame is equipped with a spring transfer and rotation device, the side end of the fourth frame is docked with a spring feeding detection device for detection and oil injection, the lower part of the spring transfer and rotation device is docked with an assembly platform, the front side of the assembly platform is provided with a spring sleeve positioning detection device, the spring transfer and rotation device clamps the spring after the spring feeding detection device is sprayed with oil and rotates it to a horizontal state, and places it on the assembly platform;

[0023] The spring feeding detection device comprises a feeding frame, a spring hanging positioning assembly, a spring handling assembly, a CCD camera and an atomizing oil spraying assembly. The spring hanging positioning assembly and the spring handling assembly are installed on the feeding frame. A CCD camera for identifying the spring model and an atomizing oil spraying assembly for atomizing the spring are arranged above the spring handling assembly; the spring hanging positioning assembly comprises a positioning lifting cylinder installed on the feeding frame, a feeding positioning frame driven up and down by the positioning lifting cylinder, and an electromagnet installed on the feeding positioning frame for fitting a magnetic suction spring; the spring handling assembly comprises a spring forcing spring installed laterally on the upper A first transport cylinder on the feeding frame, a first transport push plate driven horizontally by the first transport cylinder, a second transport cylinder installed horizontally on the first transport push plate, a second transport push plate driven horizontally by the second transport cylinder, a third transport cylinder installed vertically on the second transport push plate, a third transport push plate driven vertically by the third transport cylinder, several groups of transport clamping claw cylinders installed on the third transport push plate, and spring transport clamping claws installed on the two clamping arms of the transport clamping claw cylinders; the atomizing oil spray assembly includes an oil barrel installed on the feeding frame through a bracket, and several groups of oil spray valves installed on the outside of the oil barrel and communicated with the inside thereof;

[0024] The spring sleeve positioning and detection device comprises a base plate, a spring sleeve V-shaped seat, a left sliding cylinder, a left push plate, a left positioning block, a material pressing lifting cylinder, a material pressing plate, a right pen-shaped cylinder, a right push plate and a right positioning block. A spring sleeve V-shaped seat is installed on the base plate, a left sliding cylinder is installed on the base plate on the left side of the spring sleeve V-shaped seat, the left sliding cylinder drives the left push plate to move horizontally, a left positioning block pointing to the spring sleeve is installed on the left push plate, a material pressing lifting cylinder is also installed on the base plate, the material pressing lifting cylinder drives the press plate to move up and down, a right pen-shaped cylinder is installed on the base plate on the right side of the spring sleeve V-shaped seat, the right pen-shaped cylinder drives the right push plate to move horizontally, a right positioning block pointing to the spring sleeve is installed on the right push plate, an air outlet is opened on the right positioning block, and the air outlet of the right positioning block is connected to an air tightness detector through a connector and an air pipe.

[0025] Preferably, the ball head riveting mechanism comprises a fifth frame, a bidirectional screw module, an outer sleeve clamping device, a spring sleeve clamping device, a small ball head pushing device, a spring holding device and a riveting machine, the bidirectional screw module is installed on the fifth frame, the outer sleeve clamping device and the spring sleeve clamping device are respectively installed on the two sliding blocks of the bidirectional screw module, the small ball head pushing device is docked on the left side of the spring sleeve clamping device, the spring holding device is installed on the front and rear sides of the bidirectional screw module, and two sets of riveting machines for riveting large and small ball heads are arranged on the rear side of the bidirectional screw module;

[0026] The spring holding device includes a spring holding frame, a first holding cylinder, a first holding push plate, a lower holding jaw, a second holding cylinder, a second holding push plate and an upper holding push plate. The two spring holding frames are respectively arranged on the front and rear sides of the bidirectional screw module. Several groups of relative first holding cylinders are installed on the two spring holding frames. The first holding cylinder drives the first holding push plate to move. The lower holding jaw is installed on the side of the first holding push plate close to the bidirectional screw module. The second holding cylinder is installed on the first holding push plate. The second holding cylinder drives the second holding push plate to move. The upper holding push plate is installed on the side of the second holding push plate close to the bidirectional screw module. The lower holding jaw and the upper holding push plate are provided with arc grooves for keeping the spring axially placed. The spring sleeve and the outer sleeve can be inserted into the arc grooves.

[0027] Preferably, the functional testing mechanism includes a sixth frame, a first belt conveyor line, a first handling device, an active testing device, a passive testing device, a second belt conveyor line, a second handling device, a transfer device, a marking machine and a discharging belt conveyor line, the sixth frame is provided with a first belt conveyor line for conveying products which is arranged horizontally, a first handling device which is arranged vertically is docked at the conveying end of the first belt conveyor line, an active testing device and a passive testing device are docked below the first handling device, a second belt conveyor line is arranged at the rear side of the first handling device, a second conveyor device which is arranged vertically is docked at the conveying end of the second belt conveyor line, a transfer device is docked below the second handling device, a marking machine is docked at the side end of the transfer device, and a discharging belt conveyor line is arranged at the front side of the second handling device;

[0028] The active testing device includes a testing frame, a product carrier, a large ball head positioning carrier, a product push-pull cylinder, a product clamping claw, a large ball head press-fitting assembly, a detection linear module and a detection transfer rack. The testing frame is equipped with a product carrier and a large ball head positioning carrier. Two product push-pull cylinders are arranged at the side end of the product carrier. The two product push-pull cylinders drive the product clamping claws to clamp the product. A large ball head press-fitting assembly is arranged at the side end of the large ball head positioning carrier. A detection linear module is also installed on the sixth frame. The detection linear module drives the detection transfer rack to move horizontally. The measuring and moving carrier is opposite to the small ball head of the product and a pressure displacement sensor is arranged on the measuring and moving carrier; the large ball head press-fitting assembly comprises a press-fitting shaft, a large ball head press-fitting block, a press-fitting connecting rod and a large ball head press-fitting cylinder; the press-fitting shaft is rotatably mounted on the test frame, a large ball head press-fitting block is mounted on the press-fitting shaft, a press-fitting connecting rod is mounted on the outer end of the press-fitting shaft, a large ball head press-fitting cylinder is rotatably mounted on the test frame, and a piston rod of the large ball head press-fitting cylinder is movably connected to the press-fitting connecting rod; the structure of the passive test device is the same as that of the active test device;

[0029] The transfer device includes a transfer frame, a transfer cylinder, a transfer push plate, a clamping and rotating module, a follow-up roller, a Y-axis cylinder, a Y-axis transfer rack, a Z-axis cylinder, a Z-axis lifting plate and an air flow nozzle. The transfer frame is equipped with a transfer cylinder, which drives the transfer push plate to move. The transfer push plate is equipped with a clamping and rotating module for clamping and driving the product to rotate. The transfer push plate is also equipped with a follow-up roller to support the product. The front side of the transfer frame is equipped with a Y-axis cylinder, which drives the Y-axis transfer rack to move. The Y-axis transfer rack is equipped with a Z-axis cylinder, which drives the Z-axis lifting plate to move up and down. The protruding end of the Z-axis lifting plate is equipped with an air flow nozzle pointing to the product, and the air flow nozzle is externally connected to an inflation device.

[0030] An assembly method for an automobile trunk support rod assembly production line comprises the following steps:

[0031] S1, conical tube riveting, manually place the terminal block and C-ring on the press machine, press them together to form a press body, manually place the press body on the press body carrier of the press body push device, manually place the conical tube on the material discharge chute of the material receiving platform, the linear module drives the material receiving platform to face the rotary riveting machine, the conical tube push device pushes the conical tube into the rotary riveting machine, the error detection device presses against the conical tube and detects its length, the linear module drives the press body carrier to face the rotary riveting machine, the press body push device pushes the press body into the rotary riveting machine until the press body is inserted into the conical tube, the rotary riveting machine starts to rivet, and the press body The connecting surface between the body and the conical tube is located between the three groups of riveting head assemblies. The power mechanism drives the limit ring to rotate. When the limit ring rotates until the annular surface rolls in contact with the guide wheel, the annular surface applies pressure to the T-block, and the T-block moves toward the riveting hole. The riveting head rivets the product. The three groups of riveting head assemblies shrink and rivet toward the center synchronously. After one riveting is completed, the servo motor drives the rotating seat on the hollow rotating platform to rotate. The rotating seat drives the product to rotate a certain angle, and the riveting action is continued again. The above steps are repeated until the connecting surface between the conical tube and the press body, that is, the annular curved surface, is fully riveted in place, and the product is withdrawn;

[0032] S2, spring sheet sleeve riveting, manually take two spring sheets and place them on the fixed seat, lift the positioning mechanism and the limit mechanism to limit the position of the two spring sheets, manually take the positioner and place it between the two spring sheets, manually take two spring sheets and clamp them on the original two spring sheets, the upper and lower spring sheets form a rotating body, the flip cover installation mechanism is buckled, buckles the spring sheet and the positioner, manually places the spring sheet sleeve at the spring sheet sleeve positioning and pushing device, the spring sheet sleeve length measurement and error prevention device measures the length and prevents errors, the single-axis linear module drives the spring sheet sleeve positioning and pushing device to move relative to the second rotary riveting machine, the spring sheet sleeve positioning and pushing device pushes the spring sheet sleeve into the second rotary riveting machine, the jacking device resists the spring sheet sleeve, the single-axis linear module drives the spring positioning and pushing device to move relative to the second rotary riveting machine, the spring sheet pushing device pushes the assembled spring sheet and the positioner into the spring sheet sleeve together, until the small diameter end of the spring sheet sleeve is blocked to ensure the relative position, and the second rotary riveting machine rivets the spring sheet sleeve and the positioner together;

[0033] S3, push and install, take the conical tube assembly of step S1 to the conical tube positioning component, the right side is the positioning reference, the sensor direction detection is to prevent it from being reversed; take the spring sleeve assembly of step S2 to the spring sleeve positioning component, the left side is the positioning reference, the sensor direction detection is to prevent it from being reversed, the clamp clamps the spring sleeve assembly, the pre-assembled large ball head is placed on the large ball head carrier, the spiral feed component clamps the conical tube assembly and rotates it, the lifting oil injection valve injects oil to the surface of the conical tube assembly, injects spiral oil, and the spiral feed component rotates the tight conical tube assembly to the spring In the spring sleeve assembly, the transfer and handling device grabs the spring sleeve assembly and the large ball head and places them at the riveting device, and pushes the spring sleeve assembly and the large ball head into the third riveting machine in turn, and the large ball head is inserted into one end of the spring sleeve assembly. The third riveting machine rivets the large ball head to the spring sleeve assembly. The riveted product is taken to the clamping device by the transfer and handling device and clamped. The support sleeve and the outer sleeve are manually placed at the second oil injection and pushing device, and the length is measured to prevent errors. The clamping device injects oil and pushes the spring sleeve with the large ball head riveted into the support sleeve and the outer sleeve in turn to form the outer sleeve assembly.

[0034] S4, spring and spring sleeve installation, manually take the spring and hang it vertically on the spring hanging positioning component, electromagnetically adsorb the spring, the spring handling component clamps the spring and carries it to the bottom of the CCD camera, the spring model is determined by identifying the color, and it is moved to the atomizing spraying component for atomizing spraying. The spring transfer and rotating device clamps the sprayed spring and rotates it to a horizontal state, and places it on the assembly platform. Manually take the spring sleeve and put it on the spring sleeve positioning detection device for leak detection. After the detection is completed, the spring sleeve is placed on the assembly platform, the left side of the spring is inserted into the spring sleeve, the outer sleeve assembly part at step S3 is taken to the assembly platform, and the right side of the spring is inserted into the outer sleeve assembly part. At this time, the spring is in an expanded state with the middle exposed;

[0035] S5, ball head riveting, take the assembled product in step S4 to the outer sleeve clamping device and the spring sleeve clamping device, the outer sleeve clamping device clamps the outer sleeve and the large ball head, the spring sleeve clamping device clamps the spring sleeve, manually put the small ball head to the spring sleeve clamping device, the spring holding device clamps the spring to keep the spring posture, the bidirectional screw module drives the outer sleeve clamping device and the spring sleeve clamping device to move relative to each other until the spring sleeve is inserted into the outer sleeve. After being pressed into place, the small ball head pushing device presses the small ball head to the side end of the spring sleeve, and the riveting machine presses the large and small ball heads to the corresponding sleeves;

[0036] S6, functional test, the product assembled in step S5 is placed on the first belt conveyor line, the first handling device first takes the product to the active testing device, the active testing device clamps the outer sleeve and the large ball head, the detection linear module moves toward the direction of the product of the detection transfer rack, applies pressure, and obtains the force and displacement curve through the sensor; the first handling device continues to take the product to the passive testing device, constant pressure is applied at the testing device, and the displacement sensor is used to identify whether the product can be pushed into place;

[0037] S7, marking. The first transport device takes the products after inspection to the second belt conveyor line, and the second transport device takes the qualified products to the transfer device. The air flow nozzle sprays air flow to clean the surface of the products. The marking machine marks the qualified products. The second transport device transports the marked products to the discharge belt conveyor line for output.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] The rotary riveting machine can synchronously drive the riveting head assembly to shrink toward the center to rivet the product or spread it out to loosen the product; the hollow rotating platform drives the product to be riveted to rotate until the riveting surface of the annular curved surface is riveted in place to complete the product riveting;

[0040] The setting of the spring positioning and pushing device can quickly position the spring sheet and the positioner so as to push and install them into the spring sheet sleeve later;

[0041] During the loading process, the product is driven to rotate and spiral oiling is performed, and each area of ​​the packaged product is oiled in place;

[0042] During the process of press-fitting the spring sleeve and the outer sleeve, the spring holding device keeps the spring in a horizontal position to prevent it from jumping out radially during the press-fitting process;

[0043] It can assemble the car trunk support rods together and perform functional testing and marking to ensure the product assembly quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a top view layout of a car trunk support rod assembly production line.

[0045] Figure 2 The figure is a schematic diagram of the structure of a tapered tube riveting mechanism for an automobile trunk support rod assembly production line.

[0046] Figure 3 The schematic diagram of the structure of a rotary riveting machine for an automobile trunk support rod assembly production line.

[0047] Figure 4 This is a schematic diagram of the internal structure of a rotary riveting machine in an automobile trunk support rod assembly production line.

[0048] Figure 5 This is a partial enlarged view of a rotary riveting machine in an automobile trunk support rod assembly production line.

[0049] Figure 6 The present invention is a schematic diagram of the structure of a conical tube push-installation device for an automobile trunk support rod assembly production line.

[0050] Figure 7 The present invention is a schematic diagram of the structure of a detection and error-proofing device for an automobile trunk support rod assembly production line.

[0051] Figure 8 The figure is a schematic diagram of the structure of a spring sleeve riveting mechanism for an automobile trunk support rod assembly production line.

[0052] Fig. 9 The present invention is a schematic diagram of the structure of a spring sleeve positioning and pushing device and a length measuring and error-proofing device of an automobile trunk support rod assembly production line.

[0053] Fig.10 The present invention is a structural schematic diagram of a spring positioning and pushing device for an automobile trunk support rod assembly production line.

[0054] Fig.11 The present invention is a partial structural schematic diagram of a spring positioning and pushing device of an automobile trunk support rod assembly production line.

[0055] Fig.12 The present invention is a schematic diagram of the structure of an outer sleeve pushing mechanism of an automobile trunk support rod assembly production line.

[0056] Fig.13 The present invention is a structural schematic diagram of an oil injection and pushing device for an automobile trunk support rod assembly production line.

[0057] Fig.14 The present invention is a partial structural schematic diagram of a riveting device of an automobile trunk support rod assembly production line.

[0058] Fig.15 The present invention is a structural schematic diagram of a second oil injection and pushing device of an automobile trunk support rod assembly production line.

[0059] Fig.16 The present invention is a schematic diagram of the structure of the spring and spring sleeve assembly mechanism of an automobile trunk support rod assembly production line.

[0060] Fig.17 The diagram is a partial structural diagram of a spring load transfer and rotation device of an automobile trunk support rod assembly production line.

[0061] Fig.18 The present invention is a structural schematic diagram of a spring feeding detection device for an automobile trunk support rod assembly production line.

[0062] Fig.19The present invention is a structural schematic diagram of a spring sleeve positioning detection device for an automobile trunk support rod assembly production line.

[0063] Fig. 20 The figure is a schematic diagram of the ball head riveting mechanism structure of a car trunk support rod assembly production line.

[0064] Fig.21 The present invention is a schematic diagram of the structure of an outer sleeve clamping device of an automobile trunk support rod assembly production line.

[0065] Fig. 22 The present invention is a schematic diagram of the structure of a spring sleeve clamping device and a small ball head pushing device of an automobile trunk support rod assembly production line.

[0066] Fig.23 The diagram is a partial structural diagram of a spring retaining device of an automobile trunk support rod assembly production line.

[0067] Fig.24 The figure is a schematic diagram of the structure of a functional testing mechanism for an automobile trunk support rod assembly production line.

[0068] Fig.25 The figure is a schematic diagram of the structure of an active testing device for an automobile trunk support rod assembly production line.

[0069] Fig.26 The present invention is a schematic diagram of the structure of a transfer device for an automobile trunk support rod assembly production line.

[0070] Among them, 1. conical tube riveting mechanism, 11. first frame, 12. press machine, 13. rotary riveting machine, 131. rotary riveting frame, 132. hollow rotating platform, 133. servo motor, 134. rotating seat, 135. riveting bracket, 136. chassis, 137. riveting head assembly, 1371. limit block, 1372. T-shaped block, 1373. riveting head, 1374. guide wheel, 1375. reset spring, 138. limit ring, 1381. annular surface, 1382. retreat groove, 139. baffle, 1310. power mechanism, 14. linear module, 15. transfer rack, 16. material receiving platform, 17. conical tube push Installation device, 171, rodless cylinder, 172, push plate, 173, tapered tube push rod, 18, press-fit body pushing device, 181, first cylinder, 182, first push plate, 183, press-fit body carrier, 184, second cylinder, 185, second push plate, 186, press-fit body push rod, 19, detection error prevention device, 191, detection bracket, 192, push rod cylinder, 193, transfer plate, 194, push rod, 195, guide plate, 196, detection plate, 197, pen-shaped cylinder, 198, detection push plate, 199, linear displacement sensor, 101, terminal block material box, 102, C-ring material box, 103, tapered tube material box;

[0071] 2. Spring sleeve riveting mechanism, 21. Second frame, 22. Single-axis linear module, 23. Moving plate, 24. Spring sleeve positioning and pushing device, 241. Spring sleeve receiving platform, 242. Pushing cylinder, 243. Spring sleeve push rod, 25. Spring sleeve length measurement and error prevention device, 251. Length measurement bracket, 252. Length measurement cylinder, 253. Length measurement push plate, 254. Length measurement push rod, 255. Displacement sensor, 26. Spring positioning and pushing device, 261. Positioning bracket, 262. Fixed seat, 263. Lifting and positioning mechanism, 2631. Column, 2632. Floating plate, 2633, buffer spring, 2634, first positioning block, 2635, second positioning block, 264, limiting mechanism, 2641, vertical plate, 2642, upper limit plate, 2643, support plate, 2644, lower spring sheet pressing block, 2645, upper spring sheet supporting block, 265, flip cover installation mechanism, 2651, upper cover seat, 2652, flip cylinder, 266, spring sheet pushing device, 27, second riveting machine, 28, top material device, 29, spring sheet casing conveying line, 201, spring sheet material box, 202, positioner material box, 203, spring sheet casing material box;

[0072] 3. Outer sleeve push-fitting mechanism, 31. Third frame, 32. Oil injection push-fitting device, 321. Spring sleeve positioning assembly, 3211. First positioning cylinder, 3212. First positioning push plate, 3213. Spring sleeve carrier, 3214. Large ball head carrier, 3215. Clamping cylinder, 3216. Spring sleeve clamping claw, 322. Conical tube positioning assembly, 3221. Second positioning cylinder, 3222. Second positioning push plate Plate, 3223, positioning jacking cylinder, 3224, tapered tube carrier, 3225, positioning reference plate, 323, spiral feed assembly, 3231, servo linear module, 3232, feed push plate, 3233, two-claw chuck, 3234, reduction motor, 324, lifting oil injection valve, 33, riveting device, 331, third rotary riveting machine, 332, feeding linear module, 333, feeding push plate, 334, assembly material connection Platform, 335, large ball head push assembly, 336, first push assembly, 3361, push frame, 3362, push plate, 3363, synchronous wheel, 3364, synchronous belt, 3365, push motor, 3366, push rod, 337, second push assembly, 34, transfer and handling device, 35, clamping device, 351, belt module, 352, clamping push plate, 353, clamping chuck, 354, clamping motor , 36, the second oil injection push device, 361, the first switching cylinder, 362, the positioning frame, 363, the second switching cylinder, 364, the discharge platform, 365, the pressing jaws, 366, the pressing cylinder, 367, the positioning reference assembly, 3671, the positioning frame, 3672, the positioning push plate, 3673, the positioning reference cylinder, 3674, the positioning reference block, 368, the casing length measurement error prevention assembly, 369, the second oil injection valve;

[0073] 4. Spring and spring sleeve assembly mechanism, 41. Fourth frame, 42. Spring transfer and rotation device, 421. Z-axis linear module, 422. Lifting frame, 423. X-axis belt module, 424. Transfer push plate, 425. Rotation component, 4251. Rotation bracket, 4252. Rotating shaft, 4253. Gear, 4254. Push-pull cylinder, 4255. Rack, 426. Spring clamping component, 4261. Rotating plate, 4262. Spring clamping cylinder, 4263. Spring clamping claw, 43. Spring feeding detection device, 431. Feeding frame, 432. Spring hanging positioning component, 4321. Positioning lifting cylinder, 4322. Feeding positioning frame, 4323. Electromagnet, 433. Spring handling component, 43 31. First transport cylinder, 4332. First transport push plate, 4333. Second transport cylinder, 4334. Second transport push plate, 4335. Third transport cylinder, 4336. Third transport push plate, 4337. Transport clamp cylinder, 4338. Spring transport clamp, 434. CCD camera, 435. Atomizing oil spray assembly, 4351. Oil drum, 4352. Oil spray valve, 44. Assembly platform, 45. Spring sleeve positioning detection device, 451. Bottom plate, 452. Spring sleeve V-shaped seat, 453. Left slide cylinder, 454. Left push plate, 455. Left positioning block, 456. Pressing lifting cylinder, 457. Pressing plate, 458. Right pen-shaped cylinder, 459. Right push plate, 4510. Right positioning block;

[0074] 5. Ball head riveting mechanism, 51. Fifth frame, 52. Bidirectional screw module, 53. Outer sleeve clamping device, 531. First clamping base plate, 532. Large ball head positioning seat, 533. Outer sleeve positioning seat, 534. Outer sleeve clamping claw block, 535. Clamping cylinder, 536. Large ball head pressure block, 537. Pressing cylinder, 54. Spring sleeve clamping device, 541. Second clamping base plate, 542. Small ball head positioning seat, 543. Spring sleeve positioning seat, 544. Air claw cylinder, 545. Spring sleeve Clamping jaws, 55, small ball head push-fitting device, 551, small ball head linear module, 552, small ball head push plate, 553, small ball head sliding plate, 554, small ball head rotating shaft, 555, small ball head clamping jaw cylinder, 556, small ball head servo motor, 56, spring holding device, 561, spring holding frame, 562, first holding cylinder, 563, first holding push plate, 564, lower holding clamping jaw, 565, second holding cylinder, 566, second holding push plate, 567, upper holding push plate, 57, riveting machine;

[0075] 6. Functional testing mechanism, 61. Sixth rack, 62. First belt conveyor line, 63. First handling device, 64. Active testing device, 641. Test rack, 642. Product carrier, 643. Large ball head positioning carrier, 644. Product push-pull cylinder, 645. Product clamp, 646. Large ball head press-fit assembly, 6461. Press-fit shaft, 6462. Large ball head press-fit block, 6463. Press-fit connecting rod, 6464. Large ball head press-fit cylinder, 647. Detection linear module, 648. Detection transfer rack, 65. Passive testing device, 66 , second belt conveyor line, 67, second handling device, 68, transfer device, 681, transfer rack, 682, transfer cylinder, 683, transfer push plate, 684, clamping rotation module, 685, follow-up roller, 686, Y-direction cylinder, 687, Y-direction transfer rack, 688, Z-direction cylinder, 689, Z-direction lifting plate, 6810, air flow nozzle, 69, marking machine, 610, discharge belt conveyor line;

[0076] 01. Terminal stopper, 02. C-ring, 03. Conical tube, 04. Spring sheet, 05. Positioner, 06. Spring sheet sleeve, 07. Large ball head, 08. Support sleeve, 09. Outer sleeve, 010. Spring, 011. Spring sleeve, 012. Small ball head. DETAILED DESCRIPTION

[0077] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0078] See also Figures 1 to 26 , the embodiment of the present invention includes:

[0079] A car trunk support rod assembly production line comprises a tapered tube riveting mechanism 1, a spring sleeve riveting mechanism 2, an outer sleeve pushing mechanism 3, a spring and spring sleeve assembly mechanism 4, a ball head riveting mechanism 5 and a function testing mechanism 6 which are arranged in sequence according to the assembly order; in order to save space, they can be arranged in a U shape.

[0080] The conical tube riveting mechanism 1 comprises a first frame 11, a press machine 12, a rotary riveting machine 13, a linear module 14, a transfer rack 15, a material receiving platform 16, a conical tube pushing device 17, a press-fit body pushing device 18 and a detection and error prevention device 19. The first frame 11 is equipped with a press machine 12 for pressing a terminal stopper and a C-shaped ring, a rotary riveting machine 13 is arranged at the rear side of the press machine 12, and a linear module 14 is arranged at one side of the rotary riveting machine 13. The linear module 14 drives the transfer rack 15, a material receiving platform 16, a conical tube pushing device 17, a press-fit body pushing device 18 and a detection and error prevention device 19. The carrier 15 moves, and a receiving platform 16 for placing conical tubes, a conical tube pushing device 17 for pushing the conical tubes into the rotary riveting machine 13, and a pressing body pushing device 18 for pushing the terminal block and the C-type ring pressing body into the rotary riveting machine 13 are installed on the transfer carrier 15. A detection and error prevention device 19 for resisting the conical tube is arranged on the other side of the rotary riveting machine 13, and a terminal block material box 101, a C-type ring material box 102 and a conical tube material box 103 are arranged on the first frame 11.

[0081] The rotary riveting machine 13 includes a rotary riveting frame 131, a hollow rotating platform 132, a servo motor 133, a rotating seat 134, a riveting bracket 135, a chassis 136, a riveting head assembly 137, a limiting ring 138, a baffle 139 and a power mechanism 1310. The rotary riveting frame 131 is vertically mounted with a hollow rotating platform 132, the hollow rotating platform 132 is driven to rotate by the servo motor 133, and a rotating seat 134 is mounted on the rotating end of the hollow rotating platform 132. A mounting hole for placing a conical tube is opened in the middle of the rotating seat 134, and the middle opening of the hollow rotating platform 132 is a feed inlet and is connected to the mounting hole. The holes are opposite to each other, and a riveting bracket 135 is installed on the workbench at the outer end of the mounting hole. A chassis 136 is vertically installed on the riveting bracket 135. A riveting hole for passing the product is opened in the middle of the chassis 136. Three groups of riveting head assemblies 137 arranged around the riveting hole are installed at equal angles on the chassis 136. A limiting ring 138 is rotatably installed on the chassis 136. The limiting ring 138 and the riveting head assembly 137 are rotatably matched. The rotation of the limiting ring 138 drives the three groups of riveting head assemblies 137 to shrink toward the center or spread toward the surroundings synchronously. A baffle 139 is installed at the outer end of the limiting ring 138. The power mechanism 1310 drives the limit ring 138 to rotate; the rivet joint assembly 137 includes a limit block 1371, a T-shaped block 1372, a riveting head 1373, a guide wheel 1374 and a return spring 1375. The two limit blocks 1371 are fixed to the chassis 136. The T-shaped block 1372 is slidably installed between the two limit blocks 1371. The riveting head 1373 is rotatably installed at one end of the lower side of the T-shaped block 1372 near the riveting hole. The riveting head 1373 is in the shape of a rotating body and has an annular riveting convex surface at the outer end. The upper end of the T-shaped block 1372 is rotatably installed with a guide wheel 1374 that cooperates with the inner wall of the limit ring 138 The extensions on both sides of the T-shaped block 1372 are elastically connected to the limit block 1371 through a reset spring 1375; the inner wall of the limit ring 138 is an annular surface 1381, and three groups of retreat grooves 1382 connected to the annular surface 1381 are arranged at equal angles on the limit ring 138. Three groups of cam followers rollingly connected to the inner wall of the limit ring 138 are installed on the chassis 136. When the limit ring 138 rotates until the annular surface 1381 rolls in contact with the guide wheel 1374, the annular surface 1381 applies pressure to the T-shaped block 1372, and the T-shaped block 1372 moves toward the riveting hole, and the riveting head 1373 rivets the product.

[0082] The material receiving platform 16 is provided with a double-station material discharge chute, and a corresponding optical fiber for identifying the product is installed on the outside of the material discharge chute. One material discharge chute cooperates with the tapered tube pushing device 17, and the other material discharge chute is connected to the rotary riveting machine 13 for placing the riveted tapered tube.

[0083] The conical tube pushing device 17 includes a rodless cylinder 171 installed on the side end of the material receiving platform 16 through a bracket, a push plate 172 driven by the rodless cylinder 171 to move along the direction of the material discharge chute, and a conical tube push rod 173 installed on the push plate 172. The push plate 172 is slidably connected to the material receiving platform 16 through a linear slide rail. The conical tube push rod 173 is opposite to the conical tube in the material discharge chute, and the front end of the conical tube push rod 173 is provided with a conical portion that can be inserted into the conical tube; the press-fitting body pushing device 18 includes a first cylinder 181, a first The push plate 182, the press-fit body carrier 183, the second cylinder 184, the second push plate 185 and the press-fit body push rod 186, the first cylinder 181 is installed on the transfer rack 15, the first cylinder 181 drives the first push plate 182 to slide along the transfer rack 15, the first push plate 182 is installed with a press-fit body carrier 183 for positioning and placing the press-fit body, the first push plate 182 is also installed with a second cylinder 184, the second cylinder 184 drives the second push plate 185 to slide on the first push plate 182, and the press-fit body push rod 186 passes through the base Installed on the second push plate 185, the press body push rod 186 is opposite to the product press body on the press body carrier 183; the detection error prevention device 19 includes a detection bracket 191, a push rod cylinder 192, a transfer plate 193, a push rod 194, a guide plate 195, a detection plate 196, a pen-shaped cylinder 197, a detection push plate 198 and a linear displacement sensor 199. The push rod cylinder 192 is installed on the top plate of the detection bracket 191, and the push rod cylinder 192 drives the transfer plate 193 to move toward the direction of the rotary riveting machine 13. The transfer plate 193 passes The linear slide rail is slidably connected to the detection bracket 191, and a push rod 194 is installed on the transfer plate 193. A guide plate 195 is also installed on the top plate of the detection bracket 191. A guide groove is provided on the guide plate 195 to facilitate the movement of the push rod 194. A detection plate 196 is installed at the lower end of the transfer plate 193. A pen-shaped cylinder 197 is installed on the detection bracket 191. The pen-shaped cylinder 197 drives the detection push plate 178 to move toward the detection plate 196. A linear displacement sensor 199 opposite to the detection push plate 198 is also installed on the detection bracket 191.

[0084] The spring sleeve riveting mechanism 2 includes a second frame 21, a single-axis linear module 22, a moving plate 23, a spring sleeve positioning and pushing device 24, a spring sleeve length measuring and error-proofing device 25, a spring positioning and pushing device 26, a second rotary riveting machine 27, a pushing device 28 and a spring sleeve conveying line 29. The second frame 21 is equipped with a single-axis linear module 22 and a second rotary riveting machine 27. The single-axis linear module 22 drives the moving plate 23 to move horizontally. The moving plate 23 is equipped with a spring sleeve positioning and pushing device for pushing the spring sleeve into the second rotary riveting machine 27. The second frame 21 is provided with a spring sheet sleeve length measuring and error prevention device 25 used in conjunction with the spring sheet sleeve positioning and pushing device 24, and a spring sheet sleeve conveying line 29 pointing to the outer sleeve pushing mechanism 3 is installed on the second frame 21, and a spring sheet material box 201, a positioner material box 202 and a spring sheet sleeve material box 203 are also installed on the second frame 21.

[0085] The spring sleeve positioning and pushing device 24 includes a spring sleeve receiving platform 241, a pushing cylinder 242 and a spring sleeve push rod 243. The spring sleeve receiving platform 241 is provided with a double-station discharge chute, one discharge chute is used to place unriveted spring sleeves, and the other discharge chute is connected to the second rotary riveting machine 27 to receive riveted spring sleeves. The moving plate 23 is equipped with a pushing cylinder 242, which drives the spring sleeve push rod 243 to move horizontally. The spring sheet sleeve push rod 243 is opposite to the spring sheet sleeve in the discharge chute; the spring sheet sleeve length measurement and error prevention device 25 includes a length measuring bracket 251, a length measuring cylinder 252 installed on the length measuring bracket 251, a length measuring push plate 253 driven horizontally by the length measuring cylinder 252, a length measuring push rod 254 installed on the length measuring push plate 253, and a displacement sensor 255 installed on the length measuring bracket 251 and opposite to the length measuring push rod 254, and the length measuring push rod 254 is opposite to the spring sheet sleeve in the discharge chute.

[0086] The spring positioning and pushing device 26 includes a positioning bracket 261, a fixed seat 262, a lifting and positioning mechanism 263, a limiting mechanism 264, a flip cover installation mechanism 265 and a spring sheet pushing device 266. The positioning bracket 261 is installed on the movable plate 23. A fixed seat 262 is installed on the top of the positioning bracket 261. A semicircular through groove for placing a locator and a spring sheet is opened on the fixed seat 262. A lifting and positioning mechanism 263 for positioning the spring sheet is installed below the fixed seat 262. A limiting mechanism 264 for positioning and pressing the spring sheet is installed on the second frame 21 at the side end of the movable plate 23. A lifting inclined surface cooperating with the lifting and positioning mechanism 263 is provided on the limiting mechanism 264. A flip cover installation mechanism 265 is rotatably installed at the rear end of the fixed seat 262. A spring sheet pushing device 266 for pushing the assembled spring sheet into the second riveting machine 27 is provided on the right side of the fixed seat 262.

[0087] The lifting and positioning mechanism 263 includes a column 2631, a floating plate 2632, a buffer spring 2633, a first positioning block 2634 and a second positioning block 2635. The column 2631 is fixed between the fixed seat 262 and the bottom plate of the positioning bracket 261, and the floating plate 2632 is sleeved on the column 2631. The buffer spring 2633 is sleeved on the column 2631 between the floating plate 2632 and the fixed seat 262. The floating plate 2632 is provided with two first positioning blocks 2634 and second positioning blocks 2635 that pass through the fixed seat 262. The upper end of the first positioning block 2634 is provided with a positioning protrusion inserted into the opening of the positioning spring sheet, and the outer ends of the two second positioning blocks 2635 are extended upward to provide positioning protrusions on the end faces of the positioning spring sheets.

[0088] The limiting mechanism 264 includes a vertical plate 2641, an upper limit plate 2642, a support plate 2643, a lower spring sheet pressing block 2644 and an upper spring sheet supporting block 2645. The vertical plate 2641 is fixed on the workbench, and the upper limit plate 2642 is installed on the top of the vertical plate 2641. The upper limit plate 2642 has a jacking inclined surface matched with the bottom surface of the floating plate 2632 at the protruding end. The floating plate 2632 moves toward the limiting mechanism 264, and the floating plate 2632 is lifted under the guidance of the jacking inclined surface. On the contrary, the floating plate 2632 moves downward under the elastic force of the buffer spring 2633, and an opening for limiting the lower position of the floating plate 2632 is installed on the side plate of the positioning bracket 261, and both ends of the floating plate 2632 are inserted in the opening. A support plate 2643 is also installed on the upper limit plate 2642, and a lower spring sheet pressing block 2644 for pressing the lower spring sheet is installed in the middle of the support plate 2643, and upper spring sheet support blocks 2645 for limiting and supporting both ends of the upper spring sheet are installed on both sides of the support plate 2643.

[0089] The flip cover mounting mechanism 265 includes an upper cover seat 2651 rotatably mounted on the side end of the fixing seat 262 and a flip cylinder 2652 driving the upper cover seat 2651 to rotate. The flip cylinder 2652 is movably mounted on the positioning bracket 261 .

[0090] The ejection device 28 includes an ejection cylinder mounted on the second frame 21 through a bracket and an ejection rod driven by the ejection cylinder and inserted into the second riveting machine 27, which is used to resist the spring sheet sleeve pushed into the second riveting machine 27 and push the riveted product into the discharge chute of the spring sheet sleeve receiving platform 241.

[0091] The outer sleeve pushing mechanism 3 includes a third frame 31, an oil injection pushing device 32 installed on the third frame 31 for injecting oil into the tapered tube and pushing it into the spring leaf sleeve, a riveting device 33 for riveting the tapered tube and the spring leaf sleeve together, a transfer and transport device 34 for transporting the product to be riveted to the riveting device 33, a clamping device 35 for butt-jointing riveted products, and a second oil injection pushing device 36 for sleeve-supporting the outer sleeve and the outer sleeve.

[0092] The oil injection pushing device 32 includes a spring sheet sleeve positioning component 321, a tapered tube positioning component 322, a spiral feeding component 323 and a lifting oil injection valve 324 which are arranged in sequence horizontally. The spiral feeding component 323 clamps the tapered tube at the tapered tube positioning component 322 and then rotates and pushes it into the spring sheet sleeve at the spring sheet sleeve positioning component 321. A lifting oil injection valve 324 is arranged on the upper part of the spiral feeding component 323. The spring sheet sleeve positioning component 321 includes a first positioning cylinder 3211, a first positioning push plate 3212 driven longitudinally by the first positioning cylinder 3211, a spring sheet sleeve carrier 3213 and a large ball head carrier 3214 installed on the first positioning push plate 3212 through a bracket, a positioning groove is arranged on the spring sheet sleeve carrier 3213, the left side of the positioning groove is a reference surface, and a clamping cylinder is installed on the spring sheet sleeve carrier 3213. 3215, a spring sleeve clamp 3216 is installed on the piston rod flange plate of the clamping cylinder 3215; the tapered tube positioning assembly 322 includes a second positioning cylinder 3221, a second positioning push plate 3222 driven longitudinally by the second positioning cylinder 3221, a positioning lifting cylinder 3223 installed on the second positioning push plate 3222 through a bracket, and a tapered tube carrier 3224 driven up and down by the positioning lifting cylinder 3223, a positioning groove is provided on the tapered tube carrier 3224, and a positioning reference plate 3225 is installed on the third frame 31 on the right side of the tapered tube carrier 3224; the spiral feeding assembly 323 includes a servo linear module 3231, a feed push plate 3232 driven to move by the servo linear module 3231, a two-jaw chuck 3233 installed on the feed push plate 3232, and a reduction motor 3234 driving the two-jaw chuck 3233.

[0093] The riveting device 33 includes a third rotary riveting machine 331, a feeding linear module 332, a feeding push plate 333, an assembly receiving platform 334, a large ball head pushing assembly 335, a first pushing assembly 336 and a second pushing assembly 337. The third rotary riveting machine 331 is provided with a feeding linear module 332 on the side end, the feeding linear module 332 drives the feeding push plate 333 to move, and the feeding push plate 333 is installed with an assembly receiving platform 334 and a large ball head pushing assembly 335. The assembly receiving platform 334 is provided with a double-station discharge chute, and a jacking module for lifting the riveted product is provided below the discharge chute. The third rotary riveting machine 331 is provided with a first pushing assembly 336 for pushing the spring sheet sleeve assembly at the assembly receiving platform 334 to the third rotary riveting machine 331 on one side. The third rotary riveting machine 331 is also provided with a first pushing assembly 336 for pushing the spring sheet sleeve assembly at the assembly receiving platform 334 to the third rotary riveting machine 331. A second pushing assembly 337 for pushing out the riveted product is provided on one side; the structure of the large ball head pushing assembly 335 is the same as that of the press-fitting body pushing device 18 of the tapered tube riveting mechanism 1; the first pushing assembly 336 includes a pushing frame 3361, a pushing plate 3362, a synchronous wheel 3363, a synchronous belt 3364, a pushing motor 3365 and a pushing rod 3366, the pushing plate 3362 is slidably installed on the pushing frame 3361 through a linear slide rail, two synchronous wheels 3363 are installed on the pushing frame 3361, the two synchronous wheels 3363 are synchronously connected through a synchronous belt 3364, one of the synchronous wheels 3363 is driven to rotate by the pushing motor 3365, the synchronous belt 3364 is fixedly connected to the pushing plate 3362 through a belt pressure plate, and a pushing rod 3366 is installed on the pushing plate 3362.

[0094] The material clamping device 35 includes a belt module 351, a material clamping push plate 352 driven by the belt module 351, a material clamping chuck 353 installed on the material clamping push plate 352, and a material clamping motor 354 that drives the material clamping chuck 353 to clamp and rotate.

[0095] The second oil injection pushing device 36 includes a first switching cylinder 361, a positioning frame 362, a second switching cylinder 363, a material discharging platform 364, a material pressing clamp 365, a material pressing cylinder 366, a positioning reference component 367, a sleeve length measurement error prevention component 368 and a second oil injection valve 369. The first switching cylinder 361 drives the positioning frame 362 to move horizontally, the positioning frame 362 is equipped with the second switching cylinder 363, the second switching cylinder 363 drives the second positioning frame 364 to move horizontally, the second positioning frame 364 is equipped with a material discharging platform 364, the material discharging platform 364 is provided with two material discharging chutes for placing and supporting the sleeve and the outer sleeve, and the material pressing clamp 365 is rotatably installed on the material discharging platform 364 at the side end of the material discharging chute, and the material pressing clamp 365 is driven by the material pressing cylinder 36 6 is driven to rotate and is used to press the supporting sleeve and the outer sleeve. A positioning reference component 367 is docked on the right side of the material discharging platform 364, a sleeve length measuring and error-proofing component 368 is docked on the left side of the material discharging platform 364, and a second oil injection valve 369 is docked on the top of the clamping device 35; the positioning reference component 367 includes a positioning frame 3671, a positioning push plate 3672 slidably installed on the positioning frame 3671 through a linear slide rail, a positioning reference cylinder 3673 installed on the positioning frame 3671 to drive the positioning push plate 3672 to move, and two positioning reference blocks 3674 installed on the positioning push plate 3672; the structure of the sleeve length measuring and error-proofing component 368 is the same as the structure of the spring leaf sleeve length measuring and error-proofing device 25 of the spring leaf sleeve riveting mechanism 2.

[0096] The spring and spring sleeve assembly mechanism 4 includes a fourth frame 41, a spring transfer and rotation device 42, a spring feeding detection device 43, an assembly platform 44 and a spring sleeve positioning detection device 45. The spring transfer and rotation device 42 is installed on the fourth frame 41, the spring feeding detection device 43 is docked with the side end of the fourth frame 41, the assembly platform 44 is docked with the lower part of the spring transfer and rotation device 42, and the spring sleeve positioning detection device 45 is arranged on the front side of the assembly platform 44.

[0097] The spring transfer and rotation device 42 includes a Z-direction linear module 421, a lifting frame 422 driven by the Z-direction linear module 421 to move up and down, an X-direction belt module 423 installed on the lifting frame 422, a transfer push plate 424 driven by the X-direction belt module 423 to move horizontally, a rotation component 425 installed on the transfer push plate 424, and a spring clamping component 426 driven to rotate by the rotation component 425. The rotation component 425 includes a rotating bracket 4251, a rotating shaft 4252, a gear 4253, a push-pull cylinder 4254 and a rack 4255. The rotating bracket 425 1 is fixed on the transfer push plate 424, the rotating shaft 4252 is installed on the rotating bracket 4251 through the bearing seat, the rotating shaft 4252 is installed with a gear 4253, and the rotating bracket 4251 is also installed with a push-pull cylinder 4254, the push-pull cylinder 4254 drives the rack 4255 to move, and the rack 4255 is engaged with the gear 4253; the spring clamping assembly 426 includes a rotating plate 4261 installed on the rotating shaft 4252, a plurality of groups of spring clamping cylinders 4262 installed on the rotating plate 4261, and spring clamping claws 4263 installed on the two clamping arms of the spring clamping cylinder 4262.

[0098] The spring feeding detection device 43 includes a feeding frame 431, a spring hanging positioning component 432, a spring handling component 433, a CCD camera 434 and an atomizing oil spraying component 435. The spring hanging positioning component 432 and the spring handling component 433 are installed on the feeding frame 431. A CCD camera 434 for identifying the spring model and an atomizing oil spraying component 435 for atomizing oil spraying the spring are arranged above the spring handling component 433; the spring hanging positioning component 432 includes a positioning lifting cylinder 4321 installed on the feeding frame 431, a feeding positioning frame 4322 driven up and down by the positioning lifting cylinder 4321, and an electromagnet 4323 for fitting a magnetic suction spring installed on the feeding positioning frame 4322; the spring handling component 433 includes a spring 4321 installed horizontally on the feeding frame 431 A first transport cylinder 4331, a first transport push plate 4332 driven horizontally by the first transport cylinder 4331, a second transport cylinder 4333 installed horizontally on the first transport push plate 4332, a second transport push plate 4334 driven horizontally by the second transport cylinder 4333, a third transport cylinder 4335 installed vertically on the second transport push plate 4334, a third transport push plate 4336 driven vertically by the third transport cylinder 4335, several groups of transport clamping cylinders 4337 installed on the third transport push plate 4336, and spring transport clamps 4338 installed on the two clamping arms of the transport clamping cylinder 4337; the atomizing oil spray assembly 435 includes an oil barrel 4351 installed on the loading frame 431 through a bracket, and several groups of oil spray valves 4352 installed on the outside of the oil barrel 4351 and communicated with the inside thereof.

[0099] The spring sleeve positioning detection device 45 includes a bottom plate 451, a spring sleeve V-shaped seat 452, a left slide cylinder 453, a left push plate 454, a left positioning block 455, a material pressing lifting cylinder 456, a material pressing plate 457, a right pen-shaped cylinder 458, a right push plate 459 and a right positioning block 4510. The bottom plate 451 is provided with a spring sleeve V-shaped seat 452, and the bottom plate 451 on the left side of the spring sleeve V-shaped seat 452 is provided with a left slide cylinder 453, and the left slide cylinder 453 drives the left push plate 454 to move horizontally. A left positioning block 455 pointing to the spring sleeve is installed, and a press lifting cylinder 456 is also installed on the bottom plate 451. The press lifting cylinder 456 drives the press plate 457 to move up and down. A right pen-shaped cylinder 458 is installed on the bottom plate 451 on the right side of the spring sleeve V-shaped seat 452. The right pen-shaped cylinder 458 drives the right push plate 459 to move horizontally. A right positioning block 4510 pointing to the spring sleeve is installed on the right push plate 459. An air outlet is opened on the right positioning block 4510. The air outlet of the right positioning block 4510 is connected to an air tightness detector through a connector and an air pipe.

[0100] The ball head riveting mechanism 5 includes a fifth frame 51, a bidirectional screw module 52, an outer sleeve clamping device 53, a spring sleeve clamping device 54, a small ball head pushing device 55, a spring retaining device 56 and a riveting machine 57. The bidirectional screw module 52 is installed on the fifth frame 51. The outer sleeve clamping device 53 and the spring sleeve clamping device 54 are respectively installed on the two sliding blocks of the bidirectional screw module 52. The small ball head pushing device 55 is docked on the left side of the spring sleeve clamping device 54. The spring retaining device 56 is installed on the front and rear sides of the bidirectional screw module 52. Two groups of riveting machines 57 for riveting large and small ball heads are arranged on the rear side of the bidirectional screw module 52.

[0101] The outer sleeve clamping device 53 includes a first clamping base plate 531, a large ball head positioning seat 532, an outer sleeve positioning seat 533, an outer sleeve clamping claw block 534, a clamping cylinder 535, a large ball head pressure block 536 and a pressing cylinder 537. The first clamping base plate 531 is equipped with a large ball head positioning seat 532 and an outer sleeve positioning seat 533. The outer sleeve positioning seat 533 is slidably equipped with outer sleeve clamping claw blocks 534 on the front and rear sides. The outer sleeve clamping claw block 534 is driven to move by the clamping cylinder 535. The clamping cylinder 535 is installed on the first clamping base plate 531. The side end of the large ball head positioning seat 532 is rotatably mounted with a large ball head pressure block 536. The first clamping base plate 531 is equipped with a pressing cylinder 537 for driving the large ball head pressure block 536 to rotate.

[0102] The spring sleeve clamping device 54 includes a second clamping base plate 541, a small ball head positioning seat 542, a spring sleeve positioning seat 543, an air claw cylinder 544 and a spring sleeve clamping claw 545. The small ball head positioning seat 542 and the spring sleeve positioning seat 543 are installed on the second clamping base plate 541, the air claw cylinder 544 is installed below the spring sleeve positioning seat 543, and the spring sleeve clamping claw 545 is installed on the two clamping arms of the air claw cylinder 544.

[0103] The small ball head pushing device 55 includes a small ball head linear module 551, a small ball head push plate 552, a small ball head sliding plate 553, a small ball head rotating shaft 554, a small ball head clamping cylinder 555 and a small ball head servo motor 556. The small ball head linear module 551 is installed on the second clamping base plate 541. The small ball head linear module 551 drives the small ball head push plate 552 to move. The small ball head sliding plate 553 is slidably installed on the small ball head push plate 552 through a linear slide rail. The outer end of the small ball head sliding plate 553 is elastically connected to the small ball head push plate 552 through a buffer spring. The small ball head rotating shaft 554 is rotatably mounted on the small ball head sliding plate 553. A small ball head clamping cylinder 555 is installed at the front end of the small ball head rotating shaft 554. The small ball head rotating shaft 554 is driven to rotate by a small ball head servo motor 556 set on the small ball head sliding plate 553.

[0104] The spring holding device 56 includes a spring holding frame 561, a first holding cylinder 562, a first holding push plate 563, a lower holding jaw 564, a second holding cylinder 565, a second holding push plate 566 and an upper holding push plate 567. The two spring holding frames 561 are respectively arranged on the front and rear sides of the bidirectional screw module 52. A plurality of groups of opposite first holding cylinders 562 are installed on the two spring holding frames 561. The first holding cylinder 562 drives the first holding push plate 563 to move. A lower retaining jaw 564 is installed on the side of the holding push plate 563 close to the bidirectional screw module 52, a second retaining cylinder 565 is installed on the first retaining push plate 563, the second retaining cylinder 565 drives the second retaining push plate 566 to move, an upper retaining push plate 567 is installed on the side of the second retaining push plate 566 close to the bidirectional screw module 52, the lower retaining jaw 564 and the upper retaining push plate 567 are provided with an arc-shaped groove for maintaining the axial placement of the spring, and the spring sleeve and the outer sleeve can be inserted into the arc-shaped groove.

[0105] The functional testing mechanism 6 includes a sixth frame 61, a first belt conveyor line 62, a first handling device 63, an active testing device 64, a passive testing device 65, a second belt conveyor line 66, a second handling device 67, a transfer device 68, a marking machine 69 and a discharging belt conveyor line 610. The sixth frame 61 is provided with a first belt conveyor line 62 for conveying products which is arranged horizontally. A first handling device 63 which is arranged vertically is docked at the conveying end of the first belt conveyor line 62. An active testing device 64 and a passive testing device 65 are docked below the first handling device 63. A second belt conveyor line 66 is arranged at the rear side of the first handling device 63. A second handling device 67 which is arranged vertically is docked at the conveying end of the second belt conveyor line 66. A transfer device 68 is docked below the second handling device 67. A marking machine 69 is docked at the side end of the transfer device 68. A discharging belt conveyor line 610 is arranged at the front side of the second handling device 67.

[0106] The active testing device 64 includes a testing frame 641, a product carrier 642, a large ball head positioning carrier 643, a product push-pull cylinder 644, a product clamping claw 645, a large ball head press-fitting assembly 646, a detection linear module 647 and a detection moving carrier 648. The product carrier 642 and the large ball head positioning carrier 643 are installed on the testing frame 641. Two product push-pull cylinders 644 are arranged at the side end of the product carrier 642. The two product push-pull cylinders 644 drive the product clamping claw 645 to clamp the product. The large ball head positioning carrier 643 is docked with a large ball head press-fitting assembly 646. The sixth frame 61 is also installed with a detection linear module 647. The detection linear module 647 drives the detection moving carrier 648 to move horizontally. The carrier 648 is opposite to the small ball head of the product and a pressure displacement sensor is arranged on the detection carrier 648; the large ball head press-fitting assembly 646 includes a press-fitting shaft 6461, a large ball head press-fitting block 6462, a press-fitting connecting rod 6463 and a large ball head press-fitting cylinder 6464, the press-fitting shaft 6461 is rotatably mounted on the test frame 641, the large ball head press-fitting block 6462 is installed on the press-fitting shaft 6461, the press-fitting connecting rod 6463 is installed on the outer end of the press-fitting shaft 6461, and a large ball head press-fitting cylinder 6464 is rotatably installed on the test frame 641, and the piston rod of the large ball head press-fitting cylinder 6464 is movably connected to the press-fitting connecting rod 6463; the structure of the passive test device 65 is the same as that of the active test device 64.

[0107] The transfer device 68 includes a transfer frame 681, a transfer cylinder 682, a transfer push plate 683, a clamping rotation module 684, a follower roller 685, a Y-axis cylinder 686, a Y-axis transfer rack 687, a Z-axis cylinder 688, a Z-axis lifting plate 689 and an air flow nozzle 6810. The transfer frame 681 is equipped with a transfer cylinder 682, which drives the transfer push plate 683 to move. The transfer push plate 683 is equipped with a clamping rotation module 684 for clamping and driving the product to rotate. A follower roller 685 supporting the product is also mounted on the push plate 683, and a Y-axis cylinder 686 is installed on the front side of the transfer frame 681. The Y-axis cylinder 686 drives the Y-axis transfer rack 687 to move. The Y-axis transfer rack 687 is installed with a Z-axis cylinder 688. The Z-axis cylinder 688 drives the Z-axis lifting plate 689 to move up and down. An air flow nozzle 6810 pointing to the product is installed at the protruding end of the Z-axis lifting plate 689. The air flow nozzle 6810 is connected to an external inflation device, and the air flow nozzle 6810 sprays air flow to clean the surface of the product.

[0108] An assembly method for an automobile trunk support rod assembly production line comprises the following steps:

[0109] S1, conical tube riveting, manually place the terminal block 01 and the C-ring 02 at the press machine 12, press them together to form a press body, manually place the press body at the press body carrier 183 of the press body pushing device 18, manually place the conical tube 03 at the discharge chute of the material receiving platform 16, the linear module 14 drives the material receiving platform 16 to be opposite to the rotary riveting machine 13, the conical tube pushing device 17 pushes the conical tube 03 into the rotary riveting machine 13, the error detection device 19 presses against the conical tube 03 and detects its length, the linear module 14 drives the press body carrier 183 to be opposite to the rotary riveting machine 13, the press body pushing device 18 pushes the press body into the rotary riveting machine 13 until the press body is inserted into the conical tube 03, the rotary riveting machine 13 starts to rivet, and the press body and the conical tube The 03 connection surface is located between the three groups of riveting head assemblies 137. The power mechanism 1310 drives the limiting ring 138 to rotate. When the limiting ring 138 rotates to the point where the annular surface 1381 rolls in contact with the guide wheel 1374, the annular surface 1381 applies pressure to the T-shaped block 1372. The T-shaped block 1372 moves toward the riveting hole. The riveting head 1373 rivets the product. The three groups of riveting head assemblies 137 synchronously shrink and rivet toward the center. After one riveting is completed, the servo motor 133 drives the rotating seat 134 on the hollow rotating platform 132 to rotate. The rotating seat 134 drives the product to rotate a certain angle, and the riveting action is continued again. The above steps are repeated until the connection surface of the conical tube 03 and the press-fit body, i.e., the annular curved surface, is fully riveted in place, and the product is withdrawn.

[0110] S2, spring sheet sleeve riveting, manually take two spring sheets 04 and place them on the fixed seat 262, lift the positioning mechanism 263 and the limit mechanism 264 to limit the position of the two spring sheets 04, manually take the positioner 05 and place it between the two spring sheets 04, manually take two spring sheets and clamp them on the original two spring sheets 04, the upper and lower spring sheets 04 form a rotating body, the flip cover installation mechanism 265 is buckled, buckling the spring sheet 04 and the positioner 05, manually place the spring sheet sleeve 06 at the spring sheet sleeve positioning and pushing device 24, the spring sheet sleeve length measurement and error prevention device 25 measures the length and prevents errors, the single-axis linear module 22 The spring piece sleeve positioning and pushing device 24 is driven to move relative to the second rotary riveting machine 27, and the spring piece sleeve positioning and pushing device 24 pushes the spring piece sleeve 06 into the second rotary riveting machine 27. The pushing device 28 presses against the spring piece sleeve 06. The single-axis linear module 22 drives the spring positioning and pushing device 26 to move relative to the second rotary riveting machine 27. The spring piece pushing device 266 pushes the assembled spring piece 04 and the locator 05 into the spring piece sleeve 06 together until the small diameter end of the spring piece sleeve 06 is blocked to ensure the relative position. The second rotary riveting machine 27 rivets the spring piece sleeve 06 and the locator 05 together.

[0111] S3, push and install, take the conical tube assembly of step S1 to the conical tube positioning component 322, the right side is the positioning reference, the sensor direction is detected to prevent it from being placed upside down; take the spring sleeve assembly of step S2 to the spring sleeve positioning component 321, the left side is the positioning reference, the sensor direction is detected to prevent it from being placed upside down, the clamp clamps the spring sleeve assembly, the pre-assembled large ball head 07 is placed on the large ball head carrier 3214, the spiral feeding component 323 clamps the conical tube assembly and rotates it, the lifting oil injection valve 324 injects oil to the surface of the conical tube assembly, injects spiral oil, and the spiral feeding component 323 rotates the tight conical tube assembly to push it to the spring sleeve assembly Inside, the transfer and handling device 34 grabs the spring sheet sleeve assembly and the large ball head 07 and places them at the riveting device 33, and pushes the spring sheet sleeve assembly and the large ball head 07 into the third riveting machine 331 in turn, and the large ball head 07 is inserted into one end of the spring sheet sleeve assembly. The third riveting machine 331 rivets the large ball head 07 to the spring sheet sleeve assembly. The riveted product is taken to the clamping device 35 by the transfer and handling device 34 and clamped. The support sleeve 08 and the outer sleeve 09 are manually placed at the second oil injection and pushing device 36 to measure the length and prevent mistakes. The clamping device 35 injects oil and pushes the spring sheet sleeve riveted with the large ball head 07 into the support sleeve 08 and the outer sleeve 09 in turn to form the outer sleeve assembly.

[0112] S4, spring and spring sleeve installation, manually take the spring 010 and vertically hang it on the spring hanging positioning component 432, electromagnetically adsorb the spring 010, the spring handling component 433 clamps the spring 010 and carries it to the bottom of the CCD camera 434, and determines the spring model by identifying the color, and moves it to the atomizing spraying component 435 for atomizing spraying, the spring transfer and rotating device 42 clamps the sprayed spring 010 and rotates it to a horizontal state, and places it on the assembly platform 44, manually take the spring sleeve 011 and put it on the spring sleeve positioning detection device 45 for leak detection, after the detection is completed, take the spring sleeve 011 and put it on the assembly platform 44, insert the left side of the spring 010 into the take spring sleeve 011, take the outer sleeve assembly part at step S3 to the assembly platform 44, and insert the right side of the spring 010 into the outer sleeve assembly part, at this time, the spring 010 is in an expanded state, and the middle is exposed;

[0113] S5, ball head riveting, take the assembled product in step S4 to the outer sleeve clamping device 53 and the spring sleeve clamping device 54, the outer sleeve clamping device 53 clamps the outer sleeve 09 and the large ball head 07, the spring sleeve clamping device 54 clamps the spring sleeve 011, manually put the small ball head 012 to the spring sleeve clamping device 54, the spring holding device 56 clamps the spring to keep the posture of the spring 010, the two-way screw module 52 drives the outer sleeve clamping device 53 and the spring sleeve clamping device 54 to move relative to each other until the spring sleeve 011 is inserted into the outer sleeve 09, and after being pressed into place, the small ball head pushing device 55 presses the small ball head 012 to the side end of the spring sleeve 011, and the riveting machine 57 presses the large and small ball heads to the corresponding sleeves;

[0114] S6, functional test, the product assembled in step S5 is placed on the first belt conveyor line 62, the first handling device 63 first takes the product to the active testing device 64, the active testing device 64 clamps the outer sleeve 09 and the large ball head 07, the detection linear module 647 moves toward the product direction of the detection transfer rack 648, applies pressure, and obtains the force and displacement curve through the sensor; the first handling device 63 continues to take the product to the passive testing device 65, the testing device 65 applies a constant pressure, and the displacement sensor is used to identify whether the product can be pushed into place;

[0115] S7 marking, the first conveying device 63 takes the products after inspection to the second belt conveyor line 66, the second conveying device 67 takes the qualified products to the transfer device 68, the air flow nozzle sprays air flow to clean the product surface, the marking machine 69 marks the qualified products, and the second conveying device 67 transports the marked products to the discharge belt conveyor line 610 for output.

[0116] The invention discloses an automobile trunk support rod assembly production line and method thereof, which have a compact structure, can assemble automobile trunk support rods together and perform function detection and marking, thereby ensuring product assembly quality.

[0117] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automobile trunk support rod assembly production line, characterized in that: It includes a conical tube riveting mechanism that rivets the terminal stopper and the conical tube together in sequence; a spring sheet sleeve riveting mechanism that pushes and installs the positioned spring sheet and the positioner into the spring sheet sleeve and rivets them together; an outer sleeve pushing mechanism that rotates and inserts the spiral oil-filled conical tube assembly into the spring sheet sleeve assembly, pushes and rivets the large ball head to one end of the spring sheet sleeve assembly, and sequentially oil-fills and pushes the spring sheet sleeve with the large ball head into the support sleeve and the outer sleeve to form an outer sleeve assembly; a spring and spring sleeve assembly mechanism that inserts the two ends of the spring after inspection and oil injection into the outer sleeve assembly and the spring sleeve; a ball head pressing mechanism that pushes the spring sleeve and the outer sleeve assembly into place, presses the small ball head onto the side end of the spring sleeve, and presses the large and small ball heads; a functional testing mechanism that performs functional testing and marking on the assembled product; The conical tube riveting mechanism comprises a first frame, a press machine, a rotary riveting machine, a linear module, a transfer rack, a material receiving platform, a conical tube pushing device, a press-fitting body pushing device and a detection and error prevention device. The first frame is equipped with a press machine for pressing a terminal stopper and a C-shaped ring, a rotary riveting machine is arranged at the rear of the press machine, a linear module is arranged at one side of the rotary riveting machine, the linear module drives the transfer rack to move, the transfer rack is equipped with a material receiving platform for placing conical tubes, a conical tube pushing device for pushing conical tubes into the rotary riveting machine, and a press-fitting body pushing device for pushing the terminal stopper and the C-shaped ring press-fitting body into the rotary riveting machine, and a detection and error prevention device for resisting the conical tube is arranged at the other side of the rotary riveting machine; The rotary riveting machine comprises a rotary riveting frame, a hollow rotating platform, a servo motor, a rotating seat, a riveting bracket, a chassis, a riveting head assembly, a limiting ring, a baffle and a power mechanism, wherein a hollow rotating platform is vertically installed on the rotary riveting frame, the hollow rotating platform is driven to rotate by a servo motor, a rotating seat is installed at the rotating end of the hollow rotating platform, a mounting hole for placing a conical tube is opened in the middle of the rotating seat, the middle opening of the hollow rotating platform is a feed port and is opposite to the mounting hole, a riveting bracket is installed on the workbench at the outer end of the mounting hole, a chassis is vertically installed on the riveting bracket, a riveting hole for passing the product is opened in the middle of the chassis, three groups of riveting head assemblies arranged around the riveting hole are installed at equal angles on the chassis, a limiting ring is rotatably installed on the chassis, the limiting ring is rotatably matched with the riveting head assembly, and the rotation of the limiting ring drives the three groups of riveting head assemblies to shrink toward the center or spread toward the surroundings synchronously, a baffle is installed at the outer end of the limiting ring, and a power mechanism for driving the limiting ring to rotate is installed on the top of the rotary riveting frame; The riveting head assembly comprises a limit block, a T-shaped block, a riveting head, a guide wheel and a reset spring. The two limit blocks are fixed to the chassis. A T-shaped block is slidably installed between the two limit blocks. A riveting head is rotatably installed at one end of the lower side of the T-shaped block near the riveting hole. The riveting head is in the shape of a rotating body and has an annular riveting convex surface at the outer end. A guide wheel matching the inner wall of the limit ring is rotatably installed at the upper end of the T-shaped block. The extensions on both sides of the T-shaped block are elastically connected to the limit blocks through the reset spring. The inner wall of the limiting ring is an annular surface, and three groups of retreat grooves connected to the annular surface are arranged at equal angles on the limiting ring. Three groups of cam followers rollingly connected to the inner wall of the limiting ring are installed on the chassis. When the limiting ring rotates until the annular surface rolls in contact with the guide wheel, the annular surface applies pressure to the T-shaped block, and the T-shaped block moves toward the riveting hole, and the riveting head rivets the product.

2. The automobile trunk support rod assembly production line according to claim 1, characterized in that: The material receiving platform is provided with a double-station discharge chute, and a beam optical fiber for identifying products is installed on the outside of the discharge chute. One discharge chute cooperates with the tapered tube push-installation device, and the other discharge chute is connected to the rotary riveting machine to place the riveted tapered tube. The conical tube pushing device comprises a rodless cylinder mounted on the side end of the material receiving platform through a bracket, a push plate driven by the rodless cylinder to move along the direction of the material discharge chute, and a conical tube push rod mounted on the push plate, the conical tube push rod is opposite to the conical tube in the material discharge chute, and the front end of the conical tube push rod is provided with a conical portion capable of inserting the conical tube; The press-fit body pushing device comprises a first cylinder, a first push plate, a press-fit body carrier, a second cylinder, a second push plate and a press-fit body push rod, wherein the first cylinder is mounted on a transfer rack, the first cylinder drives the first push plate to slide along the transfer rack, a press-fit body carrier for positioning and placing the press-fit body is mounted on the first push plate, a second cylinder is also mounted on the first push plate, the second cylinder drives the second push plate to slide on the first push plate, the press-fit body push rod is mounted on the second push plate through a base, and the press-fit body push rod is opposite to the product press-fit body on the press-fit body carrier; The detection error prevention device includes a detection bracket, a push rod cylinder, a transfer plate, a push rod, a guide plate, a detection plate, a pen-shaped cylinder, a detection push plate and a linear displacement sensor. The push rod cylinder is installed on the top plate of the detection bracket, and the push rod cylinder drives the transfer plate to move toward the riveting machine. The push rod is installed on the transfer plate, and the guide plate is also installed on the top plate of the detection bracket. The guide plate is provided with a guide groove for facilitating the movement of the push rod. The detection plate is installed at the lower end of the transfer plate. The detection bracket is installed with a pen-shaped cylinder, and the pen-shaped cylinder drives the detection push plate to move toward the detection plate. The detection bracket is also installed with a linear displacement sensor opposite to the detection push plate.

3. The automobile trunk support rod assembly production line according to claim 1, characterized in that: The spring sleeve riveting mechanism includes a second frame, a single-axis linear module, a movable plate, a spring sleeve positioning and pushing device, a spring sleeve length measuring and error-proofing device, a spring positioning and pushing device, a second rotary riveting machine, a pushing device and a spring sleeve conveying line. The second frame is equipped with a single-axis linear module and a second rotary riveting machine. The single-axis linear module drives the movable plate to move horizontally. The movable plate is equipped with a spring sleeve positioning and pushing device for pushing the spring sleeve into the second rotary riveting machine and a spring positioning and pushing device for pushing the spring into the spring sleeve at the second rotary riveting machine. The second frame is equipped with a spring sleeve length measuring and error-proofing device used in conjunction with the spring sleeve positioning and pushing device. The side end of the second rotary riveting machine is provided with a pushing device for positioning and pushing out the riveted product. The second frame is equipped with a spring sleeve conveying line pointing to the outer sleeve pushing mechanism.

4. The automobile trunk support rod assembly production line according to claim 3 is characterized in that: The spring positioning and pushing device comprises a positioning bracket, a fixed seat, a lifting and positioning mechanism, a limiting mechanism, a flip cover installation mechanism and a spring piece pushing device. The positioning bracket is installed on the movable plate, and a fixed seat is installed on the top of the positioning bracket. A semicircular through groove for placing a positioner and a spring piece is provided on the fixed seat. A lifting and positioning mechanism for positioning the spring piece is installed below the fixed seat. A limiting mechanism for positioning and pressing the spring piece is installed on the second frame at the side end of the movable plate. A lifting inclined surface cooperating with the lifting and positioning mechanism is provided on the limiting mechanism. A flip cover installation mechanism is rotatably installed at the rear end of the fixed seat. A spring piece pushing device for pushing the assembled spring piece into the second riveting machine is provided on the right side of the fixed seat. The lifting and positioning mechanism comprises a column, a floating plate, a buffer spring, a first positioning block and a second positioning block. A column is fixed between the fixed seat and the bottom plate of the positioning bracket, a floating plate is sleeved on the column, a buffer spring is sleeved on the column between the floating plate and the fixed seat, two first positioning blocks and a second positioning block passing through the fixed seat are installed on the floating plate, a positioning protrusion is inserted into the opening of the positioning spring sheet at the upper end of the first positioning block, and positioning protrusions on the end faces of the positioning spring sheets are extended upward at the outer ends of the two second positioning blocks; The limiting mechanism comprises a vertical plate, an upper limit plate, a support plate, a lower spring sheet pressure block and an upper spring sheet support block. The vertical plate is fixed on the workbench, an upper limit plate is installed on the top of the vertical plate, and the protruding end of the upper limit plate is provided with a jacking inclined surface matched with the bottom surface of the floating plate. An opening for limiting the lower position of the floating plate is installed on the side plate of the positioning bracket, and both ends of the floating plate are inserted in the opening. A support plate is also installed on the upper limit plate, and a lower spring sheet pressure block for pressing the lower spring sheet is installed in the middle of the support plate, and upper spring sheet support blocks for limiting and supporting both ends of the upper spring sheet are installed on both sides of the support plate; The flip cover installation mechanism comprises an upper cover seat rotatably mounted on the side end of the fixed seat and a flip cylinder driving the upper cover seat to rotate, and the flip cylinder is movably mounted on the positioning bracket.

5. The automobile trunk support rod assembly production line according to claim 1, characterized in that: The outer sleeve pushing mechanism includes a third frame, an oil injection pushing device installed on the third frame for injecting oil into the tapered tube and pushing it into the spring sheet sleeve, a riveting device for riveting the tapered tube and the spring sheet sleeve together, a transfer and transport device for transporting the product to be riveted to the riveting device, a clamping device for butting the riveted product, and a second oil injection pushing device for sleeve-supporting the outer sleeve and the outer sleeve; The oil injection pushing device includes a spring sheet sleeve positioning component, a tapered tube positioning component, a spiral feeding component and a lifting oil injection valve which are arranged in sequence horizontally. The spiral feeding component clamps the tapered tube at the tapered tube positioning component and then rotates and pushes it into the spring sheet sleeve at the spring sheet sleeve positioning component. A lifting oil injection valve is arranged above the spiral feeding component. The spring sheet sleeve positioning component includes a first positioning cylinder driven by the first positioning cylinder to move longitudinally, a spring sheet sleeve carrier and a large ball head carrier installed on the first positioning push plate through a bracket. A positioning groove is arranged on the spring sheet sleeve carrier, and the left side of the positioning groove is a reference surface. A clamping cylinder is installed on the sleeve carrier, and a spring sleeve clamp is installed on the piston rod flange plate of the clamping cylinder; the tapered tube positioning assembly includes a second positioning cylinder, a second positioning push plate driven by the second positioning cylinder to move longitudinally, a positioning jacking cylinder installed on the second positioning push plate through a bracket, and a tapered tube carrier driven up and down by the positioning jacking cylinder, a positioning groove is provided on the tapered tube carrier, and a positioning reference plate is installed on the third frame on the right side of the tapered tube carrier; the spiral feeding assembly includes a servo linear module, a feed push plate driven by the servo linear module, a two-claw chuck installed on the feed push plate, and a reduction motor driving the two-claw chuck; The riveting device includes a third rotary riveting machine, a feeding linear module, a feeding push plate, an assembly receiving platform, a large ball head pushing assembly, a first pushing assembly and a second pushing assembly. The third rotary riveting machine is provided with a feeding linear module at the side end, the feeding linear module drives the feeding push plate to move, the assembly receiving platform and the large ball head pushing assembly are installed on the feeding push plate, a double-station discharge chute is provided on the assembly receiving platform, a jacking module for lifting the riveted product is provided at the bottom of the discharge chute, and a spring sheet sleeve assembly at the assembly receiving platform is pushed to the first of the third rotary riveting machine. Pushing assembly, a second pushing assembly for pushing out the riveted product is arranged on the other side of the third rotary riveting machine; the structure of the large ball head pushing assembly is the same as the structure of the pressing body pushing device of the tapered tube riveting mechanism; the first pushing assembly includes a pushing machine frame, a pushing plate, a synchronous wheel, a synchronous belt, a pushing motor and a pushing rod, the pushing plate is slidably mounted on the pushing machine frame through a linear slide rail, two synchronous wheels are mounted on the pushing machine frame, the two synchronous wheels are synchronously connected through a synchronous belt, one of the synchronous wheels is driven to rotate by the pushing motor, the synchronous belt is fixedly connected to the pushing plate through a belt pressure plate, and a pushing rod is mounted on the pushing plate; The material clamping device comprises a belt module, a material clamping push plate driven by the belt module, a material clamping chuck mounted on the material clamping push plate, and a material clamping motor driving the material clamping chuck to clamp the material and rotate.

6. The automobile trunk support rod assembly production line according to claim 1, characterized in that: The spring and spring sleeve assembly mechanism comprises a fourth frame, a spring transfer and rotation device, a spring feeding detection device, an assembly platform and a spring sleeve positioning detection device, the fourth frame is equipped with a spring transfer and rotation device, the side end of the fourth frame is docked with a spring feeding detection device for detection and oil injection, the lower part of the spring transfer and rotation device is docked with an assembly platform, the front side of the assembly platform is provided with a spring sleeve positioning detection device, the spring transfer and rotation device clamps the spring after the spring feeding detection device is sprayed with oil and rotates it to a horizontal state and then places it on the assembly platform; The spring feeding detection device comprises a feeding frame, a spring hanging positioning assembly, a spring handling assembly, a CCD camera and an atomizing oil spraying assembly. The spring hanging positioning assembly and the spring handling assembly are installed on the feeding frame. A CCD camera for identifying the spring model and an atomizing oil spraying assembly for atomizing the spring are arranged above the spring handling assembly; the spring hanging positioning assembly comprises a positioning lifting cylinder installed on the feeding frame, a feeding positioning frame driven up and down by the positioning lifting cylinder, and an electromagnet installed on the feeding positioning frame for fitting a magnetic suction spring; the spring handling assembly comprises a spring forcing spring installed laterally on the upper A first transport cylinder on the feeding frame, a first transport push plate driven horizontally by the first transport cylinder, a second transport cylinder installed horizontally on the first transport push plate, a second transport push plate driven horizontally by the second transport cylinder, a third transport cylinder installed vertically on the second transport push plate, a third transport push plate driven vertically by the third transport cylinder, several groups of transport clamping claw cylinders installed on the third transport push plate, and spring transport clamping claws installed on the two clamping arms of the transport clamping claw cylinders; the atomizing oil spray assembly includes an oil barrel installed on the feeding frame through a bracket, and several groups of oil spray valves installed on the outside of the oil barrel and communicated with the inside thereof; The spring sleeve positioning and detection device comprises a base plate, a spring sleeve V-shaped seat, a left sliding cylinder, a left push plate, a left positioning block, a material pressing lifting cylinder, a material pressing plate, a right pen-shaped cylinder, a right push plate and a right positioning block. A spring sleeve V-shaped seat is installed on the base plate, a left sliding cylinder is installed on the base plate on the left side of the spring sleeve V-shaped seat, the left sliding cylinder drives the left push plate to move horizontally, a left positioning block pointing to the spring sleeve is installed on the left push plate, a material pressing lifting cylinder is also installed on the base plate, the material pressing lifting cylinder drives the press plate to move up and down, a right pen-shaped cylinder is installed on the base plate on the right side of the spring sleeve V-shaped seat, the right pen-shaped cylinder drives the right push plate to move horizontally, a right positioning block pointing to the spring sleeve is installed on the right push plate, an air outlet is opened on the right positioning block, and the air outlet of the right positioning block is connected to an air tightness detector through a connector and an air pipe.

7. The automobile trunk support rod assembly production line according to claim 1, characterized in that: The ball head riveting mechanism comprises a fifth frame, a bidirectional lead screw module, an outer sleeve clamping device, a spring sleeve clamping device, a small ball head pushing device, a spring holding device and a riveting machine, the bidirectional lead screw module is installed on the fifth frame, the outer sleeve clamping device and the spring sleeve clamping device are respectively installed on the two sliding blocks of the bidirectional lead screw module, a small ball head pushing device is arranged at the left side of the spring sleeve clamping device, the front and rear sides of the bidirectional lead screw module are equipped with spring holding devices, and the rear side of the bidirectional lead screw module is equipped with two sets of riveting machines for riveting large and small ball heads; The spring holding device includes a spring holding frame, a first holding cylinder, a first holding push plate, a lower holding jaw, a second holding cylinder, a second holding push plate and an upper holding push plate. The two spring holding frames are respectively arranged on the front and rear sides of the bidirectional screw module. Several groups of relative first holding cylinders are installed on the two spring holding frames. The first holding cylinder drives the first holding push plate to move. The lower holding jaw is installed on the side of the first holding push plate close to the bidirectional screw module. The second holding cylinder is installed on the first holding push plate. The second holding cylinder drives the second holding push plate to move. The upper holding push plate is installed on the side of the second holding push plate close to the bidirectional screw module. The lower holding jaw and the upper holding push plate are provided with arc grooves for keeping the spring axially placed. The spring sleeve and the outer sleeve can be inserted into the arc grooves.

8. The automobile trunk support rod assembly production line according to claim 1, characterized in that: The functional testing mechanism includes a sixth frame, a first belt conveyor line, a first handling device, an active testing device, a passive testing device, a second belt conveyor line, a second handling device, a transfer device, a marking machine and a discharging belt conveyor line. The sixth frame is provided with a first belt conveyor line for conveying products which is arranged horizontally, a first handling device which is arranged vertically is docked at the conveying end of the first belt conveyor line, an active testing device and a passive testing device are docked below the first handling device, a second belt conveyor line is arranged at the rear side of the first handling device, a second conveying device which is arranged vertically is docked at the conveying end of the second belt conveyor line, a transfer device is docked below the second handling device, a marking machine is docked at the side end of the transfer device, and a discharging belt conveyor line is arranged at the front side of the second handling device; The active testing device includes a testing frame, a product carrier, a large ball head positioning carrier, a product push-pull cylinder, a product clamping claw, a large ball head press-fitting assembly, a detection linear module and a detection transfer rack. The testing frame is equipped with a product carrier and a large ball head positioning carrier. Two product push-pull cylinders are arranged at the side end of the product carrier. The two product push-pull cylinders drive the product clamping claws to clamp the product. A large ball head press-fitting assembly is arranged at the side end of the large ball head positioning carrier. A detection linear module is also installed on the sixth frame. The detection linear module drives the detection transfer rack to move horizontally. The measuring and moving carrier is opposite to the small ball head of the product and a pressure displacement sensor is arranged on the measuring and moving carrier; the large ball head press-fitting assembly comprises a press-fitting shaft, a large ball head press-fitting block, a press-fitting connecting rod and a large ball head press-fitting cylinder; the press-fitting shaft is rotatably mounted on the test frame, a large ball head press-fitting block is mounted on the press-fitting shaft, a press-fitting connecting rod is mounted on the outer end of the press-fitting shaft, a large ball head press-fitting cylinder is rotatably mounted on the test frame, and a piston rod of the large ball head press-fitting cylinder is movably connected to the press-fitting connecting rod; the structure of the passive test device is the same as that of the active test device; The transfer device includes a transfer frame, a transfer cylinder, a transfer push plate, a clamping and rotating module, a follow-up roller, a Y-axis cylinder, a Y-axis transfer rack, a Z-axis cylinder, a Z-axis lifting plate and an air flow nozzle. The transfer frame is equipped with a transfer cylinder, which drives the transfer push plate to move. The transfer push plate is equipped with a clamping and rotating module for clamping and driving the product to rotate. The transfer push plate is also equipped with a follow-up roller to support the product. The front side of the transfer frame is equipped with a Y-axis cylinder, which drives the Y-axis transfer rack to move. The Y-axis transfer rack is equipped with a Z-axis cylinder, which drives the Z-axis lifting plate to move up and down. The protruding end of the Z-axis lifting plate is equipped with an air flow nozzle pointing to the product, and the air flow nozzle is externally connected to an inflation device.

9. An assembly method using an automobile trunk support rod assembly production line according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, conical tube riveting, manually place the terminal block and C-ring on the press machine, press them together to form a press body, manually place the press body on the press body carrier of the press body push device, manually place the conical tube on the material discharge chute of the material receiving platform, the linear module drives the material receiving platform to face the rotary riveting machine, the conical tube push device pushes the conical tube into the rotary riveting machine, the error detection device presses against the conical tube and detects its length, the linear module drives the press body carrier to face the rotary riveting machine, the press body push device pushes the press body into the rotary riveting machine until the press body is inserted into the conical tube, the rotary riveting machine starts to rivet, and the press body The connecting surface between the body and the conical tube is located between the three groups of riveting head assemblies. The power mechanism drives the limit ring to rotate. When the limit ring rotates until the annular surface rolls in contact with the guide wheel, the annular surface applies pressure to the T-block, and the T-block moves toward the riveting hole. The riveting head rivets the product. The three groups of riveting head assemblies shrink and rivet toward the center synchronously. After one riveting is completed, the servo motor drives the rotating seat on the hollow rotating platform to rotate. The rotating seat drives the product to rotate a certain angle, and the riveting action is continued again. The above steps are repeated until the connecting surface between the conical tube and the press body, that is, the annular curved surface, is fully riveted in place, and the product is withdrawn; S2, spring sheet sleeve riveting, manually take two spring sheets and place them on the fixed seat, lift the positioning mechanism and the limit mechanism to limit the position of the two spring sheets, manually take the positioner and place it between the two spring sheets, manually take two spring sheets and clamp them on the original two spring sheets, the upper and lower spring sheets form a rotating body, the flip cover installation mechanism is buckled, buckles the spring sheet and the positioner, manually places the spring sheet sleeve at the spring sheet sleeve positioning and pushing device, the spring sheet sleeve length measurement and error prevention device measures the length and prevents errors, the single-axis linear module drives the spring sheet sleeve positioning and pushing device to move relative to the second rotary riveting machine, the spring sheet sleeve positioning and pushing device pushes the spring sheet sleeve into the second rotary riveting machine, the jacking device resists the spring sheet sleeve, the single-axis linear module drives the spring positioning and pushing device to move relative to the second rotary riveting machine, the spring sheet pushing device pushes the assembled spring sheet and the positioner into the spring sheet sleeve together, until the small diameter end of the spring sheet sleeve is blocked to ensure the relative position, and the second rotary riveting machine rivets the spring sheet sleeve and the positioner together; S3, push and install, take the conical tube assembly of step S1 to the conical tube positioning component, the right side is the positioning reference, the sensor direction detection is to prevent it from being reversed; take the spring sleeve assembly of step S2 to the spring sleeve positioning component, the left side is the positioning reference, the sensor direction detection is to prevent it from being reversed, the clamp clamps the spring sleeve assembly, the pre-assembled large ball head is placed on the large ball head carrier, the spiral feed component clamps the conical tube assembly and rotates it, the lifting oil injection valve injects oil to the surface of the conical tube assembly, injects spiral oil, and the spiral feed component rotates the tight conical tube assembly to the spring In the spring sleeve assembly, the transfer and handling device grabs the spring sleeve assembly and the large ball head and places them at the riveting device, and pushes the spring sleeve assembly and the large ball head into the third riveting machine in turn, and the large ball head is inserted into one end of the spring sleeve assembly. The third riveting machine rivets the large ball head to the spring sleeve assembly. The riveted product is taken to the clamping device by the transfer and handling device and clamped. The support sleeve and the outer sleeve are manually placed at the second oil injection and pushing device, and the length is measured to prevent errors. The clamping device injects oil and pushes the spring sleeve with the large ball head riveted into the support sleeve and the outer sleeve in turn to form the outer sleeve assembly. S4, spring and spring sleeve installation, manually take the spring and hang it vertically on the spring hanging positioning component, electromagnetically adsorb the spring, the spring handling component clamps the spring and carries it to the bottom of the CCD camera, the spring model is determined by identifying the color, and it is moved to the atomizing spraying component for atomizing spraying. The spring transfer and rotating device clamps the sprayed spring and rotates it to a horizontal state, and places it on the assembly platform. Manually take the spring sleeve and put it on the spring sleeve positioning detection device for leak detection. After the detection is completed, the spring sleeve is placed on the assembly platform, the left side of the spring is inserted into the spring sleeve, the outer sleeve assembly part at step S3 is taken to the assembly platform, and the right side of the spring is inserted into the outer sleeve assembly part. At this time, the spring is in an expanded state with the middle exposed; S5, ball head riveting, take the assembled product in step S4 to the outer sleeve clamping device and the spring sleeve clamping device, the outer sleeve clamping device clamps the outer sleeve and the large ball head, the spring sleeve clamping device clamps the spring sleeve, manually put the small ball head to the spring sleeve clamping device, the spring holding device clamps the spring to keep the spring posture, the bidirectional screw module drives the outer sleeve clamping device and the spring sleeve clamping device to move relative to each other until the spring sleeve is inserted into the outer sleeve. After being pressed into place, the small ball head pushing device presses the small ball head to the side end of the spring sleeve, and the riveting machine presses the large and small ball heads to the corresponding sleeves; S6, functional test, the product assembled in step S5 is placed on the first belt conveyor line, the first handling device first takes the product to the active testing device, the active testing device clamps the outer sleeve and the large ball head, the detection linear module moves toward the direction of the product of the detection transfer rack, applies pressure, and obtains the force and displacement curve through the sensor; The first handling device continues to take the product to the passive testing device, where a constant pressure is applied and the displacement sensor is used to identify whether the product can be pushed into place; S7, marking. The first transport device takes the products after inspection to the second belt conveyor line, and the second transport device takes the qualified products to the transfer device. The air flow nozzle sprays air flow to clean the surface of the products. The marking machine marks the qualified products. The second transport device transports the marked products to the discharge belt conveyor line for output.

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