CN204221372U - Pile joint automatic assembly line - Google Patents

Abstract

The utility model relates to an automatic production line for pile joints, which comprises an automatic deviation correcting and discharging device, a leveling device, a cutting device, a bending device, an automatic welding device, a full-circle beading device, a press-fitting riveting device and an end plate automatic feeding device , the automatic rectifying and discharging device is connected with the leveling device, the cutting device is set at the output end of the leveling device, the cutting device and the bending device are connected by a conveyor belt, the automatic welding device is set on the bending device, and the full circle beading device is set correspondingly On one side of the bending device, the full-circle beading device and the press-fit riveting device are connected by a transfer device, and the end plate automatic feeding device is connected with the press-fit riveting device. The pile joint automatic production line does not need manual operation in the whole process, which greatly reduces the number of workers and labor intensity. It has a high degree of automation and high processing efficiency, which improves production efficiency. Cost of production.

Description

Pile joint automatic production line

technical field

The utility model relates to the field of pile joint production, in particular to an automatic production line for pile joints.

Background technique

At present, my country's pipe pile industry is a labor-intensive manufacturing industry. Today, with the continuous increase in labor costs, the current production line equipment in the pipe pile industry has fallen behind the development of the times. In the traditional pile joint production, there are problems such as long processing cycle, low efficiency, many production personnel, high production cost, insufficient labor force, and rising labor cost.

The pile joint is one of the main components of the entire pipe pile. The quality of the pile joint not only affects the product quality of the pipe pile, but also affects the quality and service life of the pile foundation of the building. Therefore, the most prominent problem faced by enterprises is not the problem of growth rate, but the problem of quality and efficiency, and the problem of whether innovation can be sustained. If the quality and efficiency problems are not fundamentally resolved, and innovation-driven development cannot be achieved, the real economy will always be in an unstable and unsustainable state.

Utility model content

The technical problem to be solved by the utility model is: in order to provide an automatic production line for pile joints, improve production efficiency, stabilize quality, reduce production personnel, and finally achieve the purpose of reducing costs and increasing efficiency for enterprises to achieve sustainable development.

The technical solution adopted by the utility model to solve the technical problem is: an automatic production line for pile joints, including automatic deviation correction and discharging device, leveling device, cutting device, bending device, automatic welding device, full circle beading device, press-fitting The riveting device and the end plate automatic feeding device, the automatic deviation correction and feeding device is connected with the leveling device, the cutting device is arranged at the output end of the leveling device, the cutting device and the bending device are connected by a conveyor belt, the The automatic welding device is set on the bending device, and the full-circle beading device is correspondingly arranged on one side of the bending device. The full-circle beading device and the press-fit riveting device are connected by a transfer device, and the end plate is automatically loaded. The device is connected with a press-fit riveting device.

In the current production process, in order to prevent the deviation of the strip, the distance between the unloading rack and the leveling device is relatively large, which occupies the production site. However, the automatic deflection correcting and unwinding device of the utility model can ensure that the steel strip does not deviate during the unwinding process, and will not be strained or deformed by the limit rollers on both sides, and has a compact structure. The automatic deviation-correcting discharging device includes a frame, a material tray, a tensioning rotating shaft and a deviation-correcting actuator. The tight rotating shaft drives the tray to rotate at the same time through the tray shaft, and a stop frame is arranged on one side of the tray, and the deviation correction actuator is arranged on one side of the tray, and the deviation correction actuator controls the left and right movement of the tray.

At present, in the production process of pile joints, simple unloading racks are generally used, and the unloading effect is not ideal; the unilaterally driven pull belt is flat and prone to slipping; the cutting is done by a punching machine; the three stand-alone machines are independent of each other , there is a certain distance, there are problems in transportation, and it takes up a lot of space.

Therefore, the utility model combines the automatic deviation correction feeding device, the leveling device and the cutting device into one, and the multi-parts are designed on a mounting frame to be combined into an integrated machine, which reduces the occupied space.

The leveling device includes a transportation assembly and a leveling assembly fixed on the frame of the automatic deviation correction and discharging device, and the transportation assembly includes a number of symmetrically arranged upper and lower conveying rollers, cylinders, servo motors, reducers and Gear transmission system, the upper conveying roller and the lower conveying roller are set on the gear transmission system, the upper conveying roller is connected with the cylinder, the servo motor drives the reducer to drive the gear transmission system, and the inlet end of the transportation component is provided with a limit rod, so The leveling assembly is arranged at the output end of the transport assembly. The leveling assembly includes several upper leveling rollers and lower leveling rollers. The upper leveling rollers are arranged above the lower leveling rollers, and the upper leveling rollers are correspondingly arranged Between the flat rollers, the upper leveling roller is provided with a hand wheel for adjusting the degree of relaxation.

The cutting device includes a flat plate fixed on the frame of the automatic deviation correction discharging device, a gas-liquid pressurized cylinder, a pressing plate, a guide rail, a cutter row, and a cutter seat. The guide rail is vertically fixed below the flat plate, and the cutter The row is fixed on the guide rail, and the gas-hydraulic pressurized cylinder controls the cutter row to move up and down along the guide rail. The cutter seat is fixed below the guide rail, and the cutter seat corresponds to the cutter row.

In the current production process, when the steel strip is bent, the steel strip is bent into a ring shape on a crude stand manually, which is inefficient. The bending ring forming device of the present utility model includes a base frame, a workbench fixed on the base frame, a mechanical handle, a motor, a clamping manipulator fixed on the workbench, a cylinder and a servo motor. Horizontally rotating rotary cylinder, slide rails are arranged on the bottom frame, the mechanical handle is slidably connected along the slide rails, the motor is connected to the mechanical handle, the motor controls the mechanical handle to receive the strip steel conveyed by the conveyor belt, and the clamping manipulator is Two, correspondingly arranged on the side of the mechanical handle, the two clamping manipulators are respectively fixed with cylinders, and the cylinders respectively control the inward rotation of the two clamping manipulators so that the strip steel is bent into a ring, and the servo motor is controlled by a ball screw The two clamping manipulators move left and right. The mechanical handle pulls the strip steel of a certain specification into the two clamping manipulators, and the middle position is determined by the sensor. Two cylinders and two motors drive the clamping manipulator to bend the strip steel into a ring shape, and then the servo motor drives the strip steel. After the two ends of the steel are spliced together, they wait for welding.

In the current production process, the two ends of the bent ring-shaped steel strip are spliced together by manual labor on a simple stand, and the splicing is not neat and inefficient. The utility model adopts an automatic welding device, which is correspondingly arranged on one side of the bending device, including a beam frame and a speed-regulating motor fixed on the beam frame, a welding torch system, and a clamping assembly. The speed-regulating motor is driven by a rack and pinion. The system controls the welding torch system to move at a constant speed. The clamping assembly is correspondingly arranged on one side of the welding torch system. The clamping assembly includes a cylinder and two symmetrically arranged U-shaped side plates. Two pressure rollers are arranged between the two U-shaped side plates. The cylinder is connected with the two U-shaped side plates, and the cylinder can pull the U-shaped side plates so that the two pressure rollers can press the workpiece. Driven by the speed-regulating motor, the welding torch system drives to the strip welding place at a constant speed. After reaching the pre-welding position controlled by the sensor, the upper and lower pressure rollers clamp the strip splicing place, and the welding torch follows closely behind for welding. After welding, the two pressure rollers are opened, and the welding torch is quickly retreated to complete the welding with high efficiency and high quality.

In the current production process, the roundness of the pile hoop has a large deviation, and it needs to be manually knocked into a full circle before being pressed into the end plate. The utility model adopts a full-circle beading device, including a guide rail and a trolley that can slide along the guide rail, and a full-circle beading assembly is fixed on the trolley, and the full-circle beading assembly includes an upper shaping roller, a lower shaping roller, and a cylinder , push rods and positioning rollers, the upper shaping rollers are correspondingly arranged above the lower shaping rollers, the air cylinder controls the upper shaping rollers to rise or fall, and the positioning rollers are symmetrically arranged on both sides of the upper shaping rollers and the lower shaping rollers and can be raised or lowered Descending, the push rod is arranged below the lower shaping roller, and one side of the push rod is provided with a raceway capable of sending the workpiece into the press-fit riveting device, and a guardrail is arranged on the raceway. After automatic rounding and indentation by the full-round beading device, the roundness of the hoop of the pile sleeve is relatively round, and it can be directly assembled and riveted with the end plate.

In the current production process, the end plate needs to manually knock the pile collar on the end plate, and then put the pressed pile joint assembly on another equipment for riveting. And the utility model adopts press-fit riveting device, comprises base frame, riveting workbench, servo motor, expansion crimping head, cylinder, drive motor and riveting knife wheel, and described base frame is provided with slide rail, and described The riveting workbench is set on the slide rail, the servo motor drives the riveting workbench to slide along the slide rail, the riveting workbench is provided with an automatic centering tensioning device capable of fixing the end plates, and the expansion pressing head Correspondingly arranged above the riveting workbench, the expansion and pressing head is connected with an upper pneumatic rotary device, and the cylinder controls the expansion and pressing head to rise or fall so that the pile hoop on the expansion and pressing head is automatically centered and tensioned The end plate on the device is pressed together, the lower air pressure rotary device is arranged under the automatic centering tensioning device, the drive motor is connected with the lower air rotary device, and the drive motor drives the end plate to rotate through the lower air pressure rotary device, The riveting cutter wheel is arranged on one side of the riveting workbench and is telescopic. Driven by their respective transfer systems, the pile ferrules and end plates are accurately sent to the press-fitting point. After the press-fitting, they are directly rotated and riveted on the press-fitting workbench to form a pile joint assembly, which is completed in one go without manual intervention.

Wherein, the upper air pressure rotary device includes a bearing seat, a rotating shaft, a tapered roller bearing, a flange end cover, an air pipe and an oil felt. The oil felt is installed in the middle of the bearing seat, and the upper and lower ends of the oil felt are respectively equipped with tapered roller bearings. , the rotating shaft passes through the bearing seat from bottom to top and is fixed with the bearing seat; There is a first air inlet, the bottom end of the rotating shaft is provided with a first air outlet, the two ends of the air pipe are respectively connected with the first air inlet and the first air outlet to form a first air path, and the flange end cover The side part is provided with a second air inlet, the bottom end of the rotating shaft is provided with a second air outlet, the second air inlet communicates with the second air outlet to form a second air path, and a grease nozzle is provided on the bearing seat. The grease nozzle communicates with the oil felt. The upper pneumatic rotary device, when performing rotary riveting, the pneumatic components at the lower end can work normally and can carry high axial force.

The lower air pressure rotary device includes a bearing seat, a rotating shaft, a head shaft, a tapered roller bearing, a flange end cover, an air pipe and an oil felt. The oil felt is installed in the middle of the bearing seat. The sub-bearing, the rotating shaft passes through the bearing seat from top to bottom and is fixed with the bearing seat, the head shaft is fixed at the bottom end of the rotating shaft, the flange end cover is arranged at the bottom end of the bearing seat, and the air pipe Set in the inner cavity of the rotating shaft, the bottom end of the flange end cover is provided with a first air inlet, the top end of the rotating shaft is provided with a first air outlet, and the two ends of the air pipe are respectively connected to the first air inlet, the first The air outlet is connected to form the first air path, the side of the flange end cover is provided with a second air inlet, the top of the rotating shaft is provided with a second air outlet, and the second air inlet communicates with the second air outlet to form a second air inlet. The second air path is provided with a grease nozzle on the bearing seat, and the grease nozzle communicates with the oil felt. The lower pneumatic rotary body device, when performing rotary riveting, the pneumatic components at the upper end can work normally and can carry high axial force.

The self-centering tensioning device includes a backing plate, a rotating plate, a tensioning arm, a shaft and a cylinder. There are three tensioning arms, which are evenly arranged on the backing plate through the shaft and can rotate around the shaft. The tensioning arms are all provided with stoppers that limit the rotation of the adjacent tensioning arms. The rotating plate is fixed in the template through the rotating shaft. The guide rod on the arm is inserted in the two waist-shaped grooves and can move along the waist-shaped grooves, and the cylinder drives the rotating shaft to rotate. The self-centering tensioning device can fix the inner holes of end plates of different specifications, and insert three tensioning arms into it without alignment. Under the action of the cylinder, the three tension arms expand outward at the same time, centering and fixing the inner hole of the end plate.

The transfer device includes a jacking platform, a jacking cylinder, a clamping manipulator, an air claw, a booster cylinder, a turning manipulator and a servo motor. The jacking cylinder controls the lifting of the jacking platform, and the clamping manipulator is set on the top. On both sides of the lifting platform, the booster cylinder controls the air claws to clamp the workpiece, and the servo motor controls the turning manipulator to send the workpiece into the press-fit riveting device.

The end plate automatic feeding device includes a slide plate, a tray, an electromagnetic chuck, a vertical cylinder and a horizontal cylinder. The electromagnetic chuck is fixed below the slide plate, and the vertical cylinder controls the lifting of the electromagnetic chuck. Sensors are arranged on the electromagnetic chuck. Correspondingly arranged below the electromagnetic chuck, the horizontal cylinder controls the horizontal movement of the slide plate and can transport the slide plate above the press-fit riveting device.

The utility model also provides a production method of pile joints, comprising the following steps:

Step 1: First, place the steel strip on the automatic deviation-correcting feeding device, which corrects the deviation of the strip steel and sends it to the leveling device;

Step 2: The strip steel is leveled by the leveling device and sent to the cutting device for cutting;

Step 3: The cut strip steel is sent to the bending device through the conveyor belt, the bending device bends the strip steel into a ring, and the automatic welding device welds the two ends of the strip steel together to form an oval pile hoop;

Step 4: The full-circle beading device receives the welded pile hoop and rounds the pile hoop;

Step 5: The transfer device sends the rounded pile hoop to the press-fit riveting device, and the end plate automatic feeding device also sends the end plate to the press-fit riveting device;

Step 6: Press the riveting device to press the end plate into the pile collar to obtain the pile joint and complete the processing.

The beneficial effects of the utility model are: the automatic pile joint production line of the utility model does not need manual operation in the whole process, greatly reduces the number of workers, reduces labor intensity, has a high degree of automation, high processing efficiency, and improves production efficiency, and the obtained finished product High precision and good flatness reduce the production cost of the enterprise.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a three-dimensional structural schematic diagram of an automatic production line for pile joints;

Fig. 2 is a structural schematic diagram of an automatic deviation correction discharging device;

Fig. 3 is a schematic diagram of the integrated structure of the automatic deviation correction discharging device, the leveling device and the cutting device;

Fig. 4 is a sectional view of the cutting device;

Fig. 5 is the structural representation of bending device;

Fig. 6 is the structural representation of automatic welding device;

Fig. 7 is a structural schematic diagram of a full circle beading device;

Fig. 8 is a three-dimensional structural schematic diagram of a press-fit riveting device;

Fig. 9 is a front view of the press-fit riveting device;

Fig. 10 is a cross-sectional view of the upper pneumatic rotary device;

Figure 11 is a sectional view of the lower air pressure rotary device;

Fig. 12 is a schematic diagram of the three-dimensional structure of the self-centering tensioning device;

Figure 13 is a top view of the self-centering tensioning device;

Fig. 14 is a sectional view along A-A of Fig. 13;

Fig. 15 is a schematic structural view of an end plate automatic feeding device;

Fig. 16 is a schematic structural view of the transfer device;

FIG. 17 is a top view of FIG. 16 .

Detailed ways

Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

As shown in Figure 1, an automatic production line for pile joints includes an automatic deviation-correcting and discharging device 1, a leveling device 2, a cutting device 3, a bending device 4, an automatic welding device 5, a full circle beading device 6, a press-fit riveting The device 7 and the end plate automatic feeding device 11, the automatic deviation correction and discharging device 1 is connected to the leveling device 2, the cutting device 3 is arranged at the output end of the leveling device 2, between the cutting device 3 and the bending device 4 Connected by a conveyor belt 10, the automatic welding device 5 is arranged on the bending device 4, and the full-circle beading device 6 is correspondingly arranged on one side of the bending device 4, between the full-circle beading device 6 and the press-fit riveting device 7 Connected by the transfer device 8 , the end plate automatic feeding device 11 is connected with the press-fit riveting device 7 .

The automatic deviation correction discharging device 1 as shown in Figure 2 includes a frame 100, a material tray 101, a tensioning rotating shaft 104 and a deviation correction actuator 106, the material tray 101 is fixed on the frame 100, and the tensioning rotation The shaft 104 is fixedly connected with the tray shaft 102 of the tray 101, and the tensioning rotating shaft 104 drives the tray 101 to rotate simultaneously through the tray shaft 102, and the side of the tray 101 is provided with a stop frame 107, and the correction actuator 106 is arranged on one side of the tray 101, and the deviation correction actuator 106 controls the movement of the tray 101 left and right. Fix the tray shaft 102 with a snap ring 103 after positioning it, then fix the tray 101 on the tray shaft 102, place the strip steel welt on the tray 101, and tighten the rotating shaft 104 and the tension assembly 105. The strip steel is tensioned and fixed, and then the strip steel is axially blocked by four retaining racks 107 . When unwinding, the strip steel runs in a specified area through the deflection correction actuator 106 to ensure that both sides of the strip steel are not strained or deformed.

The leveling device 2 shown in Figure 3 comprises a transport assembly and a leveling assembly fixed on the frame 100, and the transport assembly includes several upper conveying rollers 201 and lower conveying rollers 202, air cylinders 203, and servo motors arranged symmetrically. 204, speed reducer 205 and gear transmission system, described upper conveying roller 201, lower conveying roller 202 are arranged on the gear transmission train, upper conveying roller 201 is connected with cylinder 203, and cylinder 203 drives upper conveying roller 201 to move up and down, and described servo The motor 204 drives the reducer 205 to drive the transmission of the gear drive train. A limit rod 206 is arranged at the inlet end of the transport assembly, and the leveling assembly is arranged at the output end of the transport assembly. The leveling assembly includes several upper leveling rollers 207 and lower leveling rollers 208 , the upper leveling roller 207 is arranged above the lower leveling roller 208, and the upper leveling roller 207 is correspondingly arranged between two adjacent lower leveling rollers 208, and the upper leveling roller 207 is provided with a hand wheel 209 for adjusting the degree of slack. The cylinder 203 controls the upper conveying roller 201 to descend, and the upper conveying roller 201 and the lower conveying roller 202 can press the strip steel tightly. The servo motor 204 drives the reducer 205 to drive the gear transmission system. The conveying roller 201 and the lower conveying roller 202 have driving power, and the rolling of the upper conveying roller 201 and the lower conveying roller 202 can drive the steel strip forward. The flat rollers 208 form a leveling roller system, and after adjusting the degree of relaxation through the hand wheel 209, the strip steel is leveled and transported forward.

The cutting device 3 shown in Figure 3 and Figure 4 includes a flat plate 301, a gas-liquid booster cylinder 302, a pressing plate 303, a guide rail 304, a cutter row 305, and a cutter seat 306, and the guide rail 304 is vertically fixed below the flat panel 301 , the cutter row 305 is fixed on the guide rail 304, the gas-hydraulic pressurized cylinder 302 controls the cutter row 305 to move up and down along the guide rail 304, the press plate 303 is fixed on the cutter row 305, the press plate 303 and the cutter row Spring 307 is arranged between 305, and pressing plate 303 realizes expansion and contraction by spring 307, and described cutter seat 306 is fixed below guide rail 304, and cutter seat 306 corresponds to cutter row 305. After the steel strip is transported in place, the gas-hydraulic pressurized cylinder 302 pushes the cutter row 305 down along the guide rail 304 to cut it off. 308 and then cut it off to ensure that the height of the cut burrs is not greater than 0.1mm.

Bending ring device 4 as shown in Figure 5, comprises underframe 400, the workbench 401 that is fixed on the underframe 400, mechanical handle 402, motor 404 and the clamping manipulator 403 that is fixed on the workbench 401, cylinder 405 and Servo motor 406, the workbench 401 is provided with a rotary cylinder that can make the workbench 401 rotate horizontally, the bottom frame 400 is provided with a slide rail, the mechanical handle 402 is slidably connected along the slide rail, and the motor 404 is connected with the mechanical handle 402 , the motor 404 controls the mechanical handle 402 to receive the steel strip conveyed by the conveyor belt. There are two clamping manipulators 403, which are correspondingly arranged on one side of the mechanical handle 402. The two clamping manipulators 403 are respectively fixed with cylinders 405, and the cylinders 405 The two clamping manipulators 403 are respectively controlled to rotate inwardly to bend the steel strip into a ring, and the servo motor 406 controls the two clamping manipulators 403 to move left and right through a ball screw. After the sensor of the mechanical handle 402 receives the strip steel in place, it clamps the strip steel. Under the drive of the motor 404, the strip steel is pulled into the two clamping manipulators 403. The cylinder 405 on the left rotates 90° clockwise, and the cylinder on the right The cylinder 405 rotates 90° counterclockwise, the clamping manipulator 403 on the left rotates 90° clockwise under the drive of the cylinder 405, and the clamping manipulator 403 on the right rotates 90° counterclockwise under the drive of the cylinder 405, and the U The steel strip is bent into a ring shape. Finally, the servo motor 406 drives the ball screw, so that the two clamping manipulators move inwards simultaneously, and the two ends of the strip are pulled together and wait for welding. After welding, the cylinder on the workbench 401 pushes the rack and pinion mechanism to rotate the workbench 401 by 180°, and the rotation angle can be precisely controlled by the adjusting screw on the workbench 401. In order to make the horizontal rotation stable, two adjustable universal wheels are installed below the workbench 401 to roll without gaps on the support plate, so as to achieve the smooth rotation of the workbench 401.

The automatic welding device 5 shown in Figure 6 is correspondingly arranged on one side of the device bent into a ring 4, including a beam frame 500 and a speed-regulating motor 501 fixed on the beam frame 500, a welding torch system 502, and a clamping assembly. The high-speed motor 501 controls the welding torch system 502 to move at a constant speed through a rack and pinion transmission system. The clamping assembly is correspondingly arranged on one side of the welding torch system 502. The clamping assembly includes a cylinder 503 and two symmetrically arranged U-shaped side plates 504. The two Two pressure rollers 505 are arranged between the U-shaped side plates 504, and the cylinder 503 is connected with the two U-shaped side plates 504, and the cylinder 503 can pull the U-shaped side plates 504 to make the two pressure rollers 505 press the workpiece. The bottom of the crossbeam frame 500 is provided with feet to adjust the height and level to ensure that the welded strip joint is in the middle of the groove of the U-shaped side plate 504, and the speed regulating motor 501 drives the welding torch system 502 to the advance at a constant speed. When pushed to the specified position, the cylinder 503 works to pull the U-shaped side plates 504 on both sides backward, and the upper and lower pressure rollers 505 clamp the parts to be welded before welding under the constraints of the guide grooves of the two U-shaped side plates 504. pieces. After welding, the cylinder 503 works, and after the upper and lower pressure rollers 505 are released, the speed regulating motor 501 resets quickly and stands by.

The full-circle beading device 6 as shown in Figure 7 includes a guide rail 600 and a trolley 601 that can slide along the guide rail 600, and a full-circle beading assembly is fixed on the trolley 601, and the full-circle beading assembly includes an upper shaping roller 602, lower shaping roller 603, air cylinder 608, push rod and positioning roller 605, the upper shaping roller 602 is correspondingly arranged above the lower shaping roller 603, the air cylinder 608 controls the upper shaping roller 602 to rise or fall, and the positioning roller 605 is symmetrical It is arranged on both sides of the upper shaping roller 602 and the lower shaping roller 603 and can be raised or lowered. The push rod is arranged below the lower shaping roller 603, and one side of the push rod is provided with a raceway that can send the workpiece into the press-fit riveting device. A guardrail 606 is provided on the raceway. The cylinder 604 pushes the trolley 601 forward along the guide rail 600 to meet the indented pile hoop after welding. The guardrail 606 is retracted by the cylinder and opened to a horizontal state. The guide rail 600 is provided with an adjustment screw to precisely control the receiving distance. In order to avoid excessive impact force, two oil pressure buffers are installed to absorb the impulse, so that the trolley 601 can be in place stably. The height of the lower shaping roller 603 is precisely controlled by adjusting the screw on the ground. After the trolley 601 is running in place, the upper shaping roller 602 is pushed by the cylinder 608 to clamp the indented pile hoop, and then the two clamping manipulators 403 of the ring device 4 are simultaneously released, and the cylinder 604 will The dolly 601 is pulled back. The two positioning cylinders work to push the two positioning rollers 605 to limit the position. Then, after the motor 607 drives the gear train to run for a few seconds, the pile hoop that is not indented in a full circle is formed by indentation in a full circle. The motor 607 stops running, the two positioning cylinders are reset, the two positioning rollers 605 are pulled back, the cylinder 608 retracts and the upper shaping roller 602 is lifted, and the cylinder is pushed out to push the two push rods to push out the formed pile collar, and the pile collar after being pushed out Under the action of gravity, roll out along the raceway and guardrail 606.

The press-fit riveting device 7 shown in Fig. 8 and Fig. 9 includes an underframe, a riveting workbench 700, a servo motor 701, an expansion pressing head 702, a cylinder 703, a drive motor 704 and a riveting cutter wheel 705. The base frame is provided with slide rails, the riveting workbench 700 is arranged on the slide rails, the servo motor 701 drives the riveting workbench 700 to slide along the slide rails, and the riveting workbench 700 is provided with end plates capable of Fixed self-centering tensioning device 12, the expansion and pressing head 702 is correspondingly arranged above the riveting workbench 700, and the upper air pressure rotary device 14 is connected to the expansion and pressing head 702, and the cylinder 703 controls the expansion and pressing The head 702 is raised or lowered so that the pile ferrule 13 on the expansion and pressing head 702 is pressed against the end plate 16 on the self-centering tensioner 12, and a lower air pressure rotary body is arranged under the self-centering tensioner 12 device 15, the driving motor 704 is connected to the lower air pressure rotating body device 15, the driving motor 704 drives the end plate 16 to rotate through the lower air pressure rotating body device 15, and the riveting cutter wheel 705 is arranged on one side of the riveting workbench 700 and adjustable. The pile ferrule 13 is accurately transferred to the directly below the expansion and pressing head 702 by the transfer device 8, and at the same time, the end plate 16 is placed on the riveting workbench 700 by the end plate automatic feeding device 11, and the automatic centering tensioning device 12 will It is fixed, and the riveting workbench 700 is driven by a servo motor 701 to rotate, and it is precisely pulled to directly under the expanding and pressing head 702 through the rack 707 . The upper end of the expansion pressing head 702 is connected with the upper pneumatic rotary device 14, and the pile collar 13 is pressed on the end plate 16 by the three-position air cylinder. The driving motor 704 drives the gear set 709 to drive the end plate 16 to rotate at a high speed through the lower air pressure rotating body device 15, and the pile collar 13 is pressed on the end plate 16, so it also rotates passively at the same time. The riveting cutter wheel 705 is pushed by the cylinder 706, and the pile hoop 13 is riveted on the end plate 16 to form a pile joint product.

The upper air pressure rotating body device 14 shown in Figure 10 includes a bearing seat 140, a rotating shaft 141, a tapered roller bearing 142, a flange end cover 148, an air pipe 143 and an oil felt 144, and the oil felt 144 is installed in the middle of the bearing seat 140 The upper and lower ends of the oil felt 144 are respectively equipped with tapered roller bearings 142, the rotating shaft 141 passes through the bearing seat 140 from bottom to top and is fixed with the bearing seat 140, and the flange end cover 148 is set on the top of the bearing seat 140 , the air pipe 143 is arranged in the inner cavity of the rotating shaft 141, the top end of the flange end cover 148 is provided with a first air inlet 145, the bottom end of the rotating shaft 141 is provided with a first air outlet 146, and the two ends of the air pipe Connect with the first air inlet 145 and the first air outlet 146 respectively to form a first air path, the side of the flange end cover 148 is provided with a second air inlet, and the bottom end of the rotating shaft 141 is provided with a second outlet. The air port 149 , the second air inlet communicates with the second air outlet 149 to form a second air path, and the bearing seat 140 is provided with an oil injection nozzle 147 , and the oil injection nozzle 147 communicates with the oil felt 144 . Fill the felt 144 with oil through the oil nozzle 147 to ensure the lubrication of the tapered roller bearing 142 at the lower end, and the upper end can directly fill the tapered roller bearing 142 with oil through the second air inlet 149, so as to achieve long-term stable operation.

The lower air pressure rotating body device 15 shown in Figure 11 comprises bearing housing 150, rotating shaft 151, head shaft 152, tapered roller bearing 156, flange end cover 153, air pipe 154 and oil felt 155, and described oil felt 155 is installed In the middle of the bearing seat 150, tapered roller bearings 156 are respectively installed at the upper and lower ends of the oil felt 155. The rotating shaft 151 passes through the bearing seat 150 from top to bottom and is fixed with the bearing seat 150. The head shaft 152 is fixed on the rotating shaft. The bottom end of the shaft 151, the flange end cover 153 is set on the bottom end of the bearing seat 150, the air pipe 154 is arranged in the inner cavity of the rotating shaft 151, and the bottom end of the flange end cover 153 is provided with a first air inlet 158 , the top of the rotating shaft 151 is provided with a first air outlet, and the two ends of the air pipe 154 are respectively connected with the first air inlet 158 and the first air outlet to form a first air path, and the side of the flange end cover 153 is provided There is a second air inlet, the top of the rotating shaft 151 is provided with a second air outlet, the second air inlet communicates with the second air outlet to form a second air path, the bearing seat 150 is provided with a grease nozzle, the The grease nozzle is communicated with the oil felt 155 . The tapered roller bearing 156 at the lower end can be filled with oil through the oil nozzle, so that the rotating body can work stably for a long time. The gear 157 is installed on the head shaft 152 to transmit power.

The self-centering tensioning device 12 shown in Figures 12-14 includes a template 121, a rotating plate 122, a tensioning arm 123, a shaft 124, and a cylinder 125. It is arranged on the backing plate 121 and can rotate around the shaft 124. Each tension arm 123 is provided with a block 128 that restricts the rotation of the adjacent tensioning arm 123. The rotating plate 122 is fixed on the backing plate through the rotating shaft 127. In 121, there are corresponding circular arc waist-shaped grooves on the template 121 and the rotating plate 122 respectively, and the guide rod 126 on the tensioning arm 123 is inserted in the two waist-shaped grooves and can move along the waist-shaped grooves. 125 drives the rotating shaft 127 to rotate. The tension arm 123 is made into a hook shape, the head is equipped with balls, and its tail can be used to pad the end plate at any angle, and the tension arm 123 rotates around the shaft 124. There is a circular arc waist-shaped groove on the template 121, and the guide rod 126 on the tension arm 123 is inserted therein, and the waist-shaped groove is also opened on the rotating plate 122, which is concentric with the waist-shaped groove of the template 121. The guide rod 126 is also inserted in it, and the edge of the template 121 is connected to the cylinder 125. Under the push of the cylinder 125, the three tension arms 123 move along the waist-shaped groove respectively to achieve the purpose of opening and contracting, so that the end plate clamped.

The end plate automatic feeding device 11 shown in Figure 15 includes a slide plate 110, a pallet 111, an electromagnetic chuck 112, a vertical cylinder 113 and a horizontal cylinder 114, and the electromagnetic chuck 112 is fixed below the slide plate 110, and the vertical cylinder 113 controls The electromagnetic chuck 112 is lifted and lowered, and the electromagnetic chuck 112 is provided with a sensor 115. The tray 111 is correspondingly arranged below the electromagnetic chuck 112. The horizontal cylinder 114 controls the horizontal movement of the slide plate 110 and can transport the slide plate 110 to the top of the press-fit riveting device 7 . Manually place the end plate (30 pieces/disc) on the tray 111, place the tray 111 under the electromagnetic chuck 112, and the vertical cylinder 113 pushes the electromagnetic chuck 112 to touch the end plate and then triggers the sensor 115, so that the electromagnetic chuck 112 is energized The end plate is absorbed by the work, the vertical cylinder 113 is retracted and reset, the horizontal cylinder 114 is stretched out, and the sliding plate 110 is controlled to move, so that the electromagnetic chuck 112 and the end plate move to the press-fit riveting device 7, and the sensor 115 is triggered after touching the bottom. 112 loses power and disengages from the end plate, and enters the next cycle.

The transfer device 8 shown in Figures 16 and 17 includes a jacking platform 801, a jacking cylinder 802, a clamping manipulator, an air claw 803, a booster cylinder 805, a turning manipulator 807 and a servo motor 808. 802 controls the lifting of the jacking platform 801, the clamping manipulator is arranged on both sides of the jacking platform 801, the booster cylinder 805 controls the air claw 803 to clamp the pile hoop 13, and the servo motor 808 controls the turning manipulator 807 to The pile hoop 13 is sent into the press-fit riveting device 7 . The pile hoop 7 stays on the jacking platform 801 through the raceway 609, and is clamped by the clamping manipulator. The jacking cylinder 802 lifts the pile hoop 13, and the limit block 806 controls the lifting height. Two clamping manipulators stretch out, air claws 803 and two booster cylinders 805 clamp the pile ferrule 13, two turning manipulators 807 turn it over 90°, and servo motor 806 accurately transfers this manipulator assembly to expansion and pressing Just below the head 702, it is placed on the end plate by the cylinder.

The utility model comprises the steps:

Step 1: First, place the steel strip on the automatic deviation correcting and discharging device 1, and the automatic deviation correcting and discharging device 1 corrects the deviation of the steel strip and sends it to the leveling device 2;

Step 2: The strip steel is leveled by the leveling device 2 and sent to the cutting device 3 for cutting;

Step 3: The strip steel after cutting is sent to the bending device 4 through the conveyor belt 10, the bending device 4 bends the strip steel into a ring, and the automatic welding device 5 welds the two ends of the strip steel together to form an oval pile hoop;

Step 4: The full-circle beading device 6 receives the welded pile hoop, and indents the pile hoop in a full circle;

Step 5: The transfer device 8 sends the rounded pile hoop to the press-fit riveting device 7, and the end plate automatic feeding device 11 also sends the end plate to the press-fit riveting device 7;

Step 6: Pressing the riveting device 7 to press the end plate into the pile collar 13 to obtain the pile joint and complete the processing.

Compared with the prior art, the automatic pile joint production line of the utility model does not need manual operation in the whole process, greatly reduces the number of workers, reduces labor intensity, has a high degree of automation, high processing efficiency, improves production efficiency, and the precision of the finished product is High and smooth, which reduces the production cost of the enterprise.

Inspired by the above ideal embodiment according to the utility model, through the above description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (10)

1. a pile joint automatic assembly line, it is characterized in that: comprise automatic deviation correction discharging device, apparatus for leveling, shearing device, bending apparatus, automatic soldering device, full circle rib-pressing device, press-fit riveting device and end plate automatic charging device, described automatic deviation correction discharging device is connected with apparatus for leveling, described shearing device is arranged on the output of apparatus for leveling, be connected by conveyer belt between shearing device with bending apparatus, described automatic soldering device is arranged on bending apparatus, described full circle rib-pressing device correspondence is arranged on bending apparatus side, full circle rib-pressing device is connected by shifting apparatus with press-fiting between riveting device, described end plate automatic charging device with press-fit riveting device and be connected.

2. pile joint automatic assembly line as claimed in claim 1, it is characterized in that: described apparatus for leveling comprises transport assembly and leveling assembly, described transport assembly comprises symmetrically arranged some upper rollers and lower roller, cylinder, servomotor, reductor and pinion unit, described upper roller, lower roller is arranged on gear drive and fastens, upper roller is connected with cylinder, the transmission of described driven by servomotor reductor driven gear power train, transport assembly entrance point is provided with gag lever post, described leveling assembly is arranged on transport assembly output, leveling assembly comprises some upper flattening rollers and lower flattening roller, upper flattening roller is arranged on above lower flattening roller, and upper flattening roller correspondence is arranged between adjacent twice flattening rollers, upper flattening roller is provided with the handwheel regulating relaxation degree.

3. pile joint automatic assembly line as claimed in claim 1, it is characterized in that: described shearing device comprises flat board, pneumohydraulic pressure-cylinder, pressing plate, guide rail, cutting knife row, Cutter apron, described guide rail is vertically fixed on dull and stereotyped below, described cutting knife row is fixed on guide rail, described pneumohydraulic pressure-cylinder controls cutting knife row and moves up and down along guide rail, described pressing plate is fixed on cutting knife row, pressing plate and cutting knife are provided with spring between arranging, pressing plate realizes flexible by spring, described Cutter apron is fixed on below guide rail, and Cutter apron is arranged corresponding with cutting knife.

4. pile joint automatic assembly line as claimed in claim 1, it is characterized in that: described in bend to loop device and comprise underframe, be fixed on the workbench on underframe, mechanical handle, motor and fixing clamping mechanical hand on the table, cylinder and servomotor, workbench is provided with the rotary cylinder that workbench can be made to horizontally rotate, underframe is provided with slide rail, described mechanical handle is slidably connected along slide rail, described motor is connected with mechanical handle, Electric Machine Control machinery handle receives conveyer belt and carries the band steel of coming, described clamping mechanical hand is two, correspondence is arranged on mechanical handle side, two clamping mechanicals are fixed with cylinder on hand respectively, described cylinder controls two clamping mechanical hands respectively and inwardly rotates to make band steel bend to ring, described servomotor controls two clamping mechanical hands by ball-screw and moves left and right.

5. pile joint automatic assembly line as claimed in claim 1, it is characterized in that: described automatic soldering device correspondence is arranged on and bends to loop device side, comprise cross beam frame and be fixed on the buncher on cross beam frame, welding gun system, clamp assembly, described buncher is at the uniform velocity moved by rack pinion Systematical control welding gun system, described clamp assembly correspondence is arranged on welding gun system side, clamp assembly comprises cylinder and two symmetrically arranged U-shaped side plates, two pressure rollers are provided with between described two U-shaped side plates, described cylinder is connected with two U-shaped side plates, cylinder can pull U-shaped side plate to make two pressure roller workpiece pressings.

6. pile joint automatic assembly line as claimed in claim 1, it is characterized in that: described full circle rib-pressing device comprises guide rail and can along the dolly of slide, described dolly is fixed with full circle beading assembly, described full circle beading assembly comprises shaping roller, lower shaping roller, cylinder, push rod and registration roller, described upper shaping roller correspondence is arranged on above lower shaping roller, described cylinder controls upper shaping roller and rises or decline, described registration roller is symmetricly set on shaping roller, also can rise or decline in lower shaping roller both sides, described push rod is arranged on below lower shaping roller, push rod side is provided with can send workpiece into the raceway press-fiting riveting device, raceway is provided with guardrail.

7. pile joint automatic assembly line as claimed in claim 1, it is characterized in that: described in press-fit riveting device and comprise underframe, riveted workbench, servomotor, expansion combining pressing head, cylinder, drive motors and riveted break bar, described underframe is provided with slide rail, described riveted workbench is arranged on slide rail, described driven by servomotor riveted workbench slides along slide rail, riveted workbench is provided with can by self-centering tensioning apparatus fixing for end plate, described expansion combining pressing head correspondence is arranged on above riveted workbench, expansion combining pressing head is connected with air pressure revolving body device, described cylinder controls expansion combining pressing head and rises or decline to make the pile protection hoop on expansion combining pressing head and the end plate pressing on self-centering tensioning apparatus, lower air pressure revolving body device is provided with below described self-centering tensioning apparatus, described drive motors is connected with lower air pressure revolving body device, drive motors drives end plate to rotate by lower air pressure revolving body device, described riveted break bar is arranged on riveted workbench side and scalable.

8. pile joint automatic assembly line as claimed in claim 7, it is characterized in that: described self-centering tensioning apparatus comprises master plate, flap, tensioner arm, axle and cylinder, described tensioner arm is three, evenly be arranged on master plate by axle, and can pivot, each tensioner arm is provided with the block that the adjacent tensioner arm of restriction rotates, described flap is fixed in master plate by rotating shaft, master plate and flap offer corresponding circular arc kidney slot respectively, guide rod on tensioner arm to intert in two kidney slots and can move along kidney slot, described air cylinder driven rotating shaft rotates.

9. pile joint automatic assembly line as claimed in claim 7, it is characterized in that: described shifting apparatus comprises lifting platform, jacking cylinder, clamping mechanical hand, gas pawl, boosting cylinder, turning manipulator and servomotor, described jacking cylinder controls lifting platform lifting, described clamping mechanical hand is arranged on lifting platform both sides, described boosting cylinder controls gas pawl by Workpiece clamping, and workpiece is sent into and press-fited riveting device by described Serve Motor Control turning manipulator.

10. pile joint automatic assembly line as claimed in claim 1, it is characterized in that: described end plate automatic charging device comprises slide plate, pallet, magnechuck, vertical cylinder and horizontal air cylinder, described magnechuck is fixed on below slide plate, described vertical cylinder controls magnechuck lifting, magnechuck is provided with sensor, described pallet correspondence is arranged on below magnechuck, and described horizontal air cylinder control slide plate moves horizontally and slide plate can be delivered to and press-fits above riveting device.