A conveying method of a self-walking double-rail conveying line

Abstract

The present application relates to a kind of self-propelled double-track conveying line conveying method, comprising steps 1: in the corresponding station between multiple processes of factory, it is communicated by conveying line, conveying line is made of multiple double guide rail straight section and double guide rail bend section;Step 2: in the conveying line in step 1 above, set up upper conveying line;Step 3: between lower conveying line and upper conveying line, it is connected by a group of conveying car lifting section;Step 4: at each station, conveying car stop station connected with conveying line is installed;Step 5: install variable rail section on upper conveying line and lower conveying line, make conveying car get different running track, and then cope with the matching of different processes of same product;Step 6: utilize self-driving conveying car to walk on double guide rail conveying line, complete the transportation of goods;The present application has the advantages that: by the combination use of these modular components, the arrangement of conveying line will be more flexible, more intelligent, also make conveying car can get different running track.

Description

Technical Field

[0001] This invention relates to the field of conveying equipment technology, and in particular to a conveying method for a self-propelled dual-track conveyor line applicable to automatic transmission, online assembly and testing in industries such as automobiles, electronics, and food. Background Technology

[0002] Most current intelligent automated conveyor systems install the drive unit on the conveyor line, and the products are transported to designated locations via belts, chains, rollers, etc., on pallets. This type of automated conveyor system has relatively high energy consumption because it requires driving the entire conveyor line. Furthermore, stopping a single pallet requires two methods: first, stopping the entire conveyor line, which severely impacts production schedules; second, requiring an additional stopping mechanism. During pallet stopping, to avoid affecting the normal operation of other pallets in the system, sliding friction occurs between the stopped pallet and the belt (or chain, roller, etc.), causing varying degrees of wear on both. Moreover, current self-propelled single-track conveyor methods also suffer from low carrying capacity, complex conveyor vehicle movement, and susceptibility to errors during transport. Therefore, there is an urgent need for a self-propelled double-track conveyor method. Summary of the Invention

[0003] In view of the above problems, the purpose of this invention is to provide a conveying method for a self-propelled dual-track conveyor line, which allows for a more flexible and intelligent operating trajectory between the conveyor vehicle and the conveyor line, thereby overcoming the shortcomings of the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A conveying method for a self-propelled dual-track conveyor line specifically includes the following steps:

[0006] Step 1: The workstations corresponding to multiple processes in the factory are connected by a conveyor line, which consists of multiple sets of double guide rail straight sections and double guide rail curved sections;

[0007] Step 2: An upper conveyor line is set above the conveyor line in Step 1. The upper conveyor line is used to connect one or more of the following: the repair station, the scrap recycling station, the high-configuration or low-configuration optional station, and the empty car return station of the conveyor vehicle.

[0008] Step 3: A set of conveyor car lifting sections is used to connect the lower conveyor line and the upper conveyor line, and the conveyor car lifting sections are used to move the conveyor car between the lower conveyor line and the upper conveyor line;

[0009] Step 4: Install a conveyor vehicle docking station connected to the conveyor line at each workstation. The conveyor vehicle docking station is used to accurately position the conveyor vehicles so that non-manual assembly equipment or loading and unloading equipment can be aligned and positioned.

[0010] Step 5: Install track-changing sections on the upper and lower conveyor lines. The track-changing sections enable the conveyor vehicles to have different running trajectories, thereby matching different processes of the same product.

[0011] Step 6: Use a self-driven conveyor to travel on a double-rail conveyor line, and power the conveyor to the conveyor to complete the transportation of goods.

[0012] As a preferred embodiment of the present invention, step 6 further includes the following step:

[0013] Step A1: Install a support plate on the conveyor vehicle to support the tooling and accurately position it. The support plate is connected to the two drive heads of the conveyor vehicle via a drive head connecting plate.

[0014] The support plate is connected to the drive head connecting plate through two sets of conical positioning pin sleeves. The drive head connecting plate has conical holes at the positions corresponding to the conical positioning pin sleeves. Through the cooperation between the conical positioning pin sleeves and the conical holes, the support plate can be stably placed on the drive head connecting plate by gravity and accurately positioned. The side edge of the support plate is also provided with V-shaped grooves for positioning the conveyor vehicle. The V-shaped grooves are used for positioning with the conveyor vehicle at the docking station.

[0015] The two drive heads are rotatably connected to the bottom of the drive head connecting plate via the top drive head shaft, and the drive head shaft adapts to the operation of the conveyor vehicle on the double guide rail bend.

[0016] Step A2: Install drive reduction motors in both drive heads. The two drive reduction motors increase the carrying capacity of the conveyor. The drive reduction motors output power to the drive wheels of the drive heads through synchronous belts, so that the conveyor can get forward or backward power. In order to avoid the problem of asynchronous rotation speed of the left and right wheels during the turning process of the conveyor, a driven wheel is used on the other side of the conveyor. The driven wheel only serves to support the conveyor.

[0017] Step A3: Both drive heads are equipped with guide wheels to prevent derailment and guide shafts for the guide wheels to turn as the track curves. The guide shafts are rotatably connected to the bottom of the drive head near the guide rail convex edge. The guide wheels are mounted on the guide shafts and are laterally rotatably connected to both sides of the guide rail convex edge.

[0018] Step A4: The two drive heads are a power-taking drive head for connecting to the power supply and a control drive head for control.

[0019] Step A5: The power-collecting drive head is equipped with four power-collecting wheels arranged in two rows. The two power-collecting wheels in the upper row collect 24V positive power from the guide rail, and the two power-collecting wheels in the lower row collect 24V negative power from the guide rail. The power-collecting wheels are fixed to the power-collecting wheel mounting base by shafts and bearings. The power-collecting wheel mounting base installed on the conveyor is made of insulating material. Each power-collecting wheel is equipped with a power-collecting plate. One end of the power-collecting plate is connected to the power line on the power-collecting wheel mounting base, and the other end is pressed against the power-collecting wheel. Through the power-collecting wheels, power-collecting plates, and power lines, the 24V power on the guide rail is sent to the control circuit board of the conveyor to power the drive reduction motor and sensors.

[0020] Step A6: A control circuit board is installed inside the control drive head. The power take-up wheel sends electrical energy to the control circuit board via a power cable. The on / off signals from the sensors drive the geared motor to rotate forward, reverse, accelerate, decelerate, and stop. Two proximity sensors are arranged vertically. When the upper proximity sensor has a signal, the conveyor decelerates to prepare for stopping. When both sensors have signals, the conveyor stops. When the lower proximity sensor has a signal, the conveyor accelerates. Photoelectric sensors are installed at both ends of the conveyor. When an object blocks a photoelectric sensor, the conveyor stops to avoid a collision.

[0021] As a preferred embodiment of the present invention, step 1 further includes the following step:

[0022] Step B1: Connect and fix the two sections of guide rail (straight section to straight section, straight section to curved section, curved section to curved section) through the connecting plate. At the same time, the 24V power supply on the guide rail is also supplied to the positive and negative terminals of the power supply piece on the guide rail through the external power supply post on the connecting plate. The positive and negative terminals of the power supply piece are installed on the side of the guide rail through the insulating strip. Installing the insulating strip can insulate the positive and negative terminals of the power supply piece from the guide rail. The 24V power supply energizes the positive and negative terminals of the power supply post on the guide rail through the cable, and provides power to the transport vehicle through the positive and negative terminals of the power supply piece.

[0023] As a preferred embodiment of the present invention, step 4 further includes the following step:

[0024] Step C1: When the conveyor vehicle arrives at the conveyor vehicle parking station, the support plate on the conveyor vehicle is lifted by about 1mm by the support wheel on the conveyor vehicle parking station, so that the tapered positioning pin sleeve of the support plate on the conveyor vehicle and the positioning pin of the drive head connecting plate are gapped up and down, which indirectly causes the support plate and the drive head connecting plate to have a floating amount of tapered hole size in the horizontal direction.

[0025] Step C2: When the two proximity sensors on the conveyor vehicle detect the stop block on the conveyor vehicle stop station, the conveyor vehicle stops. The positioning motor of the conveyor vehicle stop station runs and drives the rack through the gear to extend the V-shaped positioning block on the rack and position it with the V-shaped groove of the support plate. At the same time, the support plate is pressed against the guide wheel on the side of the conveyor vehicle stop station, so that the conveyor vehicle stop station is positioned with the conveyor vehicle.

[0026] As a preferred embodiment of the present invention, step 5 further includes the following step:

[0027] Step D1: By using the T-shaped, X-shaped, and cross-shaped guide rail sections installed on the conveyor line, the conveyor line is made into multiple parallel branches;

[0028] Step D2: The servo motor in the T-shaped track-changing section is installed at the lower end of the servo turntable. The rotation of the servo motor drives the turntable and the rotating double guide rails to rotate together, so that the two ends of the rotating double guide rails are connected to the four fixed double guide rails according to the pre-programmed paths, forming three different conveying routes. In order to ensure that the conveyor car always has a power supply in the T-shaped track-changing section, the outer end of the fixed double guide rails is directly connected to the wiring cable. The power supply of the rotating double guide rails on the turntable is sent from the center of the turntable to the power supply plate on the rotating double guide rails through the cable and the terminal block. In order to enable the conveyor car to run in both directions, the inner side of the double guide rails in the T-shaped track-changing section is powered.

[0029] Step D3: The servo motor of the X-shaped track-changing section is installed at the lower end of the servo turntable. The servo motor rotates, driving the turntable and the rotating double guide rail to rotate together, so that the two ends of the rotating double guide rail are connected to the four fixed double guide rails according to the pre-programmed paths, forming three different conveying routes. In order to ensure that the conveyor car always has a power supply in the X-shaped track-changing section, the outer end of the fixed double guide rail is directly connected to the wiring cable. The power supply of the rotating double guide rail on the turntable is sent from the center of the turntable to the power supply plate on the rotating double guide rail through the cable and the terminal block. In order to enable the conveyor car to run in both directions, the inner side of the double guide rail of the X-shaped track-changing section needs to be powered.

[0030] Step D4: The servo motor of the cross-shaped track changing section is installed at the lower end of the servo turntable. The servo motor rotates, driving the turntable and the rotating double guide rails to rotate together, so that the two ends of the rotating double guide rails are connected to the four fixed double guide rails according to the pre-programmed paths, forming two different conveying routes. In order to ensure that the conveyor car always has a power supply in the cross-shaped track changing section, the outer end of the fixed double guide rails is directly connected to the wiring cable. The power supply of the rotating double guide rails on the turntable is sent from the center of the turntable to the power supply plate on the rotating double guide rails through the cable and the terminal block. In order for the conveyor car to run in both directions, the inner side of the double guide rails in the cross-shaped track changing section needs to be powered.

[0031] As a preferred embodiment of the present invention, step 3 further includes the following step:

[0032] Step E1: The two conveyor lifting sections work together to make the conveyor circulate up and down;

[0033] Step E2: In order to ensure that the conveyor vehicle always has a power supply on the lifting double guide rails of the lifting section, the power supply of the lifting double guide rails is delivered to the power supply plate of the lifting double guide rails through cables and terminals. The induction block on the lifting double guide rails causes the conveyor vehicle to decelerate and stop when passing through the lifting double guide rails.

[0034] Step E3: The lifting servo motor of the conveyor lifting section operates, transmitting power to the drive synchronous belt through the synchronous belt, pulley, drive shaft, and drive pulley. The lifting double guide rails are fixedly connected to the slide table, and the slide table moves up and down along the guide rail direction under the action of the drive synchronous belt. The counterweight of the conveyor lifting section is used to balance the weight of the conveyor, tooling, and slide table, thereby reducing the power of the servo motor.

[0035] The advantages and positive effects of this invention are:

[0036] 1. This invention combines the use of components such as the positioning component of the conveyor vehicle, the T-shaped track-changing component, the X-shaped track-changing component, the cross track-changing component, and the lifting component of the conveyor vehicle, making the layout of the conveyor line more flexible and intelligent, and enabling the conveyor vehicle to obtain different running trajectories and more operating schemes.

[0037] 2. The conveyor vehicle of the present invention adopts a self-driven conveying method, which can effectively improve the conveying power. Furthermore, the conveyor vehicle adopts a dual positioning method for precise docking, thereby adapting to the conveying and control of more intelligent unmanned production lines.

[0038] 3. The use of double guide rails in the straight section and curved section of the double guide rail in this invention makes the transport vehicle run more smoothly and the transport method safer.

[0039] 4. The connection between the straight section and the curved section of the double guide rails in this invention adopts a rail connection power supply method. By installing a power supply plate on the inside of the guide rails for wireless connection, the conveyor vehicle becomes more flexible compared to the existing wire connection method.

[0040] 5. The T-shaped track-changing section of this invention, by rotating the central turntable to three different positions, can obtain three different conveying routes. Using two T-shaped track-changing sections together can add an additional parallel branch to the conveying line, resulting in more conveying options. The X-shaped track-changing section, by rotating the central turntable to three different positions, can also obtain three different conveying routes. Using only one X-shaped track changer can add an additional parallel branch to the conveying line, resulting in more conveying options. The cross-shaped track-changing section, by rotating the central turntable to two different positions, can also obtain two different conveying routes. Using only one cross-shaped track changer can add an additional node to the conveying line, thus resulting in more conveying options.

[0041] 5. The rotating double guide rails on the T-shaped, X-shaped, and cross-shaped track-changing sections of the present invention are energized by cables and terminals at the center of the turntable, so that the rotating double guide rails can move on the track-changing section. Moreover, energizing plates are installed on the inner side of the double guide rails, so that the conveyor can run in both directions.

[0042] 6. The addition of a lifting section to the conveyor vehicle in the method of the present invention allows the conveyor vehicle to circulate up and down, which not only saves floor space but also connects two or more conveyor lines at different heights, thereby obtaining more conveying solutions. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the overall structure of the present invention, with the arrow pointing in the direction of travel of the transport vehicle.

[0044] Figure 2 This is one of the main views of the overall structure in this invention, with the arrow pointing in the direction of travel of the transport vehicle.

[0045] Figure 3 This is the second main view of the overall structure in this invention.

[0046] Figure 4 This is a schematic diagram of the overall structure of the transport vehicle in this invention.

[0047] Figure 5 This is a cross-sectional view of the overall structure of the transport vehicle in this invention.

[0048] Figure 6 This is a cross-sectional view of the installation position of the drive shaft and power supply device in the drive head of the present invention.

[0049] Figure 7 This is a schematic diagram of the power supply device in this invention.

[0050] Figure 8 This is a cross-sectional view of the installation positions of the control circuit board and sensors in the drive head of the present invention.

[0051] Figure 9 This is a cross-sectional view of the installation position of the drive head and guide rail in this invention.

[0052] Figure 10 This is a schematic diagram of the installation structure of the power supply mechanism connecting the straight section of the double guide rail, the curved section of the double guide rail, and the track in this invention.

[0053] Figure 11 This is a cross-sectional view of the installation position of the power supply mechanism connecting the guide rail and the track in this invention.

[0054] Figure 12 This is a schematic diagram of the transport vehicle parking station and the parking position of the transport vehicle in this invention.

[0055] Figure 13 This is a schematic diagram of the parking positioning mechanism and the positioning of the transport vehicle in this invention.

[0056] Figure 14 This is a schematic diagram of the stopping platform and the stopping position of the transport vehicle in this invention.

[0057] Figure 15 This is a schematic diagram showing the connection changes between the T-shaped variable track section and the fixed guide rail in this invention.

[0058] Figure 16 This is a schematic diagram of the installation of the servo turntable and drive motor in the T-shaped track-changing section of the present invention.

[0059] Figure 17 This is a schematic diagram of the installation of the rotating double guide rail and the fixed double guide rail in the T-shaped track section of the present invention.

[0060] Figure 18 This is a schematic diagram of the power supply method in the T-shaped track section of this invention.

[0061] Figure 19 This is a schematic diagram showing the connection changes between the X-shaped variable track section and the fixed guide rail in this invention.

[0062] Figure 20 This is a schematic diagram of the installation of the servo turntable and drive motor in the X-shaped track-changing section of the present invention.

[0063] Figure 21 This is a schematic diagram of the installation of the rotating double guide rail and the fixed double guide rail in the X-shaped track section of the present invention.

[0064] Figure 22 This is a schematic diagram of the power supply method in the X-type track-changing section of the present invention.

[0065] Figure 23 This is a schematic diagram showing the connection changes between the cross-shaped variable track section and the fixed guide rail in this invention.

[0066] Figure 24 This is a schematic diagram of the installation of the servo turntable and drive motor in the cross-shaped track section of this invention.

[0067] Figure 25 This is a schematic diagram of the installation of the rotating double guide rail and the fixed double guide rail in the cross-shaped variable track section of the present invention.

[0068] Figure 26 This is a schematic diagram of the power supply method in the cross-shaped track section of the present invention.

[0069] Figure 27 This is a schematic diagram showing the connection between the lifting section of the conveyor vehicle and the conveyor vehicle in this invention.

[0070] Figure 28 This is a front view of the lifting section of the conveyor vehicle in this invention.

[0071] Figure 29 This is a side view of the lifting section of the conveyor vehicle in this invention.

[0072] Figure 30 This is a cross-sectional view of the lifting double guide rail in this invention.

[0073] Reference numerals: Conveyor 1, Carrier plate 1-1, Drive head connecting plate 1-2, Conical positioning pin sleeve 1-3, Power take-up drive head 1-4, Control drive head 1-5, Drive head rotating shaft 1-6, Drive reduction motor 1-7, Pulley 1-8, Synchronous belt 1-9, Pulley 1-10, Drive shaft 1-11, Drive wheel 1-12, Driven wheel 1-13, Guide shaft 1-14, Guide wheel 1-15, Power take-up wheel 1-16, Power take-up wheel fixing seat 1-17, Power take-up plate 1-18, Spring 1-19, Power take-up wheel guide shaft 1-20, Power take-up wheel linear bearing 1-21, Proximity sensor 1-2 2. Control circuit board 1-23. Photoelectric sensor 1-24. Double guide rail straight section 2. Power supply plate positive pole 2-1. Power supply plate negative pole 2-2. Insulating strip 2-3. Stop block 2-4. Double guide rail curved section 3. Track connection power supply mechanism 4. Power supply column positive pole 4-1. Power supply column negative pole 4-2. Insulating block 4-3. Claw 4-4. Cable 4-5. Connecting plate 4-6. T-nut 4-7. Slot 4-8. Conveyor car stopping station 5. Support wheel 5-1. Guide wheel 5-2. Positioning motor 5-3. Gear rack 5-4. V-shaped positioning block 5-5. Stopping platform 5-6. T-shaped track changing section 6. Rotation 6-1 Double guide rail, 6-2 Turntable, 6-3 Fixed double guide rail, 6-4 Fixed double guide rail, 6-5 Fixed double guide rail, 6-6 Servo motor, 6-7 Servo turntable, 6-8 Cable, 6-9 Terminal block, 6-10 Power supply piece, 7 X-type guide rail section, 7-1 Rotating double guide rail, 7-2 Turntable, 7-3 Fixed double guide rail, 7-4 Fixed double guide rail, 7-5 Fixed double guide rail, 7-6 Servo motor, 7-7 Servo turntable, 7-8 Cable, 7-9 Terminal block, 7-10 Power supply piece, 7-11 Cross guide rail section, 8 Rotating double guide rail, 8-1 Turntable, 8-2 Fixed double guide rail 8-3, Fixed double guide rail; 8-4, Fixed double guide rail; 8-5, Fixed double guide rail; 8-6, Servo motor; 8-7, Servo turntable; 8-8, Cable; 8-9, Terminal block; 8-10, Power supply piece; 8-11, Conveyor car lifting section; 9, Lifting double guide rail; 9-1, Cable; 9-2, Terminal block; 9-3, Power supply piece; 9-4, Induction block; 9-5, Lifting servo motor; 9-6, Synchronous belt; 9-7, Pulley; 9-8, Drive shaft; 9-9, Drive pulley; 9-10, Drive synchronous belt; 9-11, Vertical guide rail; 9-12, Slide table; 9-13, Counterweight; 9-14, 9-15, Frame; 10, Rail support. Detailed Implementation

[0074] See Figure 1-30This embodiment provides a conveying method for a self-propelled dual-track conveyor line, including the following steps:

[0075] Step 1: The workstations corresponding to multiple processes in the factory are connected by a conveyor line, which consists of multiple sets of double guide rail straight sections 2 and double guide rail curved sections 3;

[0076] Step 2: An upper conveyor line is set above the conveyor line in Step 1. The upper conveyor line is used to connect one or more of the following: the repair station, the scrap recycling station, the high-configuration or low-configuration optional station, and the empty car return station of the conveyor vehicle 1.

[0077] Step 3: The lower conveyor line and the upper conveyor line are connected by a set of conveyor car lifting sections 9. The conveyor car lifting sections 9 are used to move the conveyor car 1 between the lower conveyor line and the upper conveyor line.

[0078] Step 4: Install a conveyor car docking station 5 connected to the conveyor line at each workstation. The conveyor car docking station 5 is used to accurately position the conveyor car 1 so that it can be aligned and positioned by non-manual assembly equipment or loading and unloading equipment.

[0079] Step 5: Install track-changing sections on the upper and lower conveyor lines. The track-changing sections enable the conveyor car 1 to obtain different running trajectories, thereby matching different processes of the same product.

[0080] Step 6: The self-driven conveyor 1 travels on the double-rail conveyor line, and the double-rail conveyor line supplies power to the conveyor 1 to complete the transportation of goods.

[0081] Furthermore, step 1 of this embodiment also includes the following steps:

[0082] Step B1: Connect and fix the two sections of the guide rail through the connecting plate 4-6. At the same time, the 24V power supply on the guide rail is also supplied to the positive terminal 2-1 and negative terminal 2-2 of the power supply piece on the guide rail through the external power supply post on the connecting plate 4-6. The positive terminal 2-1 and negative terminal 2-2 of the power supply piece are installed on the side of the guide rail through the insulating strip 2-3. Installing the insulating strip 2-3 can insulate the positive terminal 2-1 and negative terminal 2-2 of the power supply piece from the guide rail. The 24V power supply energizes the positive terminal 4-1 and negative terminal 4-2 of the power supply post on the guide rail through the cable, and provides power to the conveyor vehicle through the positive terminal 2-1 and negative terminal 2-2 of the power supply piece. The straight section 2 and / or the curved section 3 of the double guide rails are connected and powered by a track connection power supply mechanism 4. The straight section 2 of the double guide rails consists of two straight guide rails, and the curved section 3 of the double guide rails consists of two curved guide rails. The track connection power supply mechanism 4 includes: a power supply plate assembly, a power supply column assembly, and a connecting plate assembly.

[0083] See Figure 11The connecting plate assembly is used to connect the straight section 2 and / or the curved section 3 of the double guide rail. The connecting plate assembly includes two connecting plates 4-6 that connect the straight section guide rail and / or the curved section guide rail. One connecting plate 4-6 is installed on the outer side of the straight section guide rail and / or the curved section guide rail, and the other connecting plate 4-6 is installed on the bottom surface of the straight section guide rail and / or the curved section guide rail. A T-nut 4-7 is provided on the connecting plate 4-6, and a slot 4-8 is opened on the outer side and bottom surface of the straight section guide rail and / or the curved section guide rail corresponding to the position of the T-nut 4-7.

[0084] See Figure 11 The power supply assembly is used to supply power to the conveyor vehicle 1. The power supply assembly includes: a positive power supply electrode 2-1, a negative power supply electrode 2-2, and an insulating strip 2-3. The positive power supply electrode 2-1 and the negative power supply electrode 2-2 are installed on the inner side of the track and are in contact with the power taking wheel 1-16. The positive power supply electrode 2-1 and the negative power supply electrode 2-2 are respectively used to connect and supply power to the power taking wheel 1-16. The insulating strip 2-3 is installed between the positive power supply electrode, the negative power supply electrode, and the track. The insulating strip 2-3 is used to insulate between the positive power supply electrode 2-1, the negative power supply electrode 2-2, and the track.

[0085] See Figure 11 The power supply column assembly includes: a positive power supply column 4-1, a negative power supply column 4-2, an insulating block 4-3, a claw 4-4, and a cable 4-5. The positive power supply column 4-1 and the negative power supply column 4-2 are installed inside the rail and connected to the cable 4-5. After being connected to an external power source, the cable 4-5 supplies power to the positive power supply piece 2-1 and the negative power supply piece 2-2 through the positive power supply column 4-1 and the negative power supply column 4-2. The insulating block 4-3 is installed on the guide rail to insulate the guide rail from the positive power supply column 4-1, the negative power supply column 4-2, and the claw 4-4. The claw 4-4 is installed at both ends of the positive power supply piece 2-1 and the negative power supply piece 2-2 and extends outward a certain distance. The claw 4-4 is used to connect the gap between the two sections of the positive power supply piece 2-1 and the negative power supply piece 2-2.

[0086] Furthermore, step 3 of this embodiment also includes the following steps:

[0087] Step E1: The two conveyor lifting sections 9 are used in conjunction to make the conveyor 1 circulate up and down;

[0088] Step E2: To ensure that the conveyor 1 always has a power supply on the lifting double guide rail 9-1 of the lifting section 9, the power supply of the lifting double guide rail 9-1 is delivered to the power supply piece 8-11 of the lifting double guide rail 9-1 through cable 8-9 and terminal 8-10. The induction block 9-5 on the lifting double guide rail 9-1 causes the conveyor 1 to decelerate and stop when passing through the lifting double guide rail 9-1. The power supply mechanism consisting of cable 9-2, terminal 9-3 and power supply piece 9-4 supplies power to the lifting double guide rail 9-1. Cable 9-2 supplies power to the power supply piece 9-4 on the lifting double guide rail 9-1 through terminal 9-3. Power supply pieces 9-4 are installed on both guide rails of the lifting double guide rail.

[0089] Step E3: The lifting servo motor 9-6 of the lifting section 9 of the conveyor car operates, transmitting power to the drive synchronous belt 9-11 through the synchronous belt 9-7, pulley 9-8, drive shaft 9-9, and drive pulley 9-10. The lifting double guide rail 9-1 is fixedly connected to the slide table 9-13. The slide table 9-13 moves up and down along the guide rail direction under the action of the drive synchronous belt 9-11. The counterweight block 9-14 of the lifting section 9 of the conveyor car balances the weight of the conveyor car 1, tooling, and slide table, thereby reducing the power of the lifting servo motor 9-6.

[0090] Furthermore, step 4 of this embodiment also includes the following steps:

[0091] Step C1: When the conveyor 1 runs to the two stops 5-6 of the conveyor stop 5, the support plate 1-1 on the conveyor 1 is lifted by the support wheel 5-1 on the conveyor stop 5 by about 1mm, so that the tapered positioning pin sleeve 1-3 on the support plate on the conveyor 1 and the positioning pin of the drive head connecting plate 1-2 are gapped up and down, which indirectly causes the support plate 1-1 and the drive head connecting plate 1-2 to have a floating amount of tapered hole size in the horizontal direction;

[0092] Step C2: When the two proximity sensors on the conveyor 1 detect the stop block 2-4 on the conveyor parking station 5, the conveyor 1 stops, the positioning motor 5-3 of the conveyor parking station 5 operates and extends through the V-shaped positioning block 5-5 on the gear rack 5-4 to be positioned with the V-groove of the support plate 1-1, and at the same time, the support plate 1-1 is pressed against the guide wheel 5-2 on the side of the conveyor parking station 5, so that the conveyor parking station is positioned with the conveyor 1-1.

[0093] Furthermore, step 5 of this embodiment also includes the following steps:

[0094] Step D1: Using the T-shaped variable rail section 6, X-shaped variable rail section 7 and cross variable rail section 8 installed on the conveyor line, the conveyor line is made into multiple parallel branches;

[0095] Step D2: The T-shaped track-changing section 6 rotates to three different positions via the central turntable 6-2, and the T-shaped track change can achieve the following... Figure 15 The system provides three types of conveying lines and two T-shaped variable rail sections 6, allowing for an additional parallel branch and more conveying options. The servo motor 6-6 of the T-shaped variable rail section 6 is mounted on the lower end of the servo turntable 6-7. The rotation of the servo motor 6-6 drives the turntable 6-2 and the rotating double guide rail 6-1 to rotate together, causing both ends of the rotating double guide rail 6-1 to rotate according to a pre-programmed sequence and connect to fixed double guide rails 6-3 and 6-4, or fixed double guide rails 6-3 and 6-5, or fixed double guide rails 6-4 and 6-5, forming three different conveying routes. To ensure a continuous power supply for the conveyor vehicle 1 within the T-shaped variable rail section 6, the outer ends of the fixed double guide rails 6-3, 6-4, and 6-5 are powered via a rail-connected power supply mechanism 4. The power supply for the rotating double guide rail 6-1 is transmitted from the center of the turntable 6-2 through cable 6-8 and terminal block 6-9 to the power supply plate 6-10. In order for the conveyor vehicle 1 to be able to run in both directions, the inner sides of the double guide rails of the T-shaped track section 6 need to be powered.

[0096] Step D3: The X-shaped track-changing section 7 rotates to three different positions via the central turntable 7-2, and the X-shaped track-changing section 7 can achieve the following... Figure 19 The three conveying lines, including an X-shaped variable track section 7, allow for an additional parallel branch in conveying line 1, resulting in more conveying options. The servo motor 7-7 of the X-shaped variable track section 7 is mounted on the lower end of the servo turntable 7-8. The rotation of the servo motor 7-7 drives the turntable 7-2 and the rotating double guide rails 7-1 to rotate together, causing both ends of the rotating double guide rails 7-1 to rotate according to a pre-programmed sequence and connect to fixed double guide rails 7-3 and 7-6, or fixed double guide rails 7-4 and 7-5, or fixed double guide rails 7-5 and 7-6, forming three different conveying routes. To ensure a continuous power supply for the conveyor vehicle 1 within the X-shaped variable track section 7, the outer ends of the fixed double guide rails 7-3, 7-4, 7-5, and 7-6 are powered via a rail-connected power supply mechanism 4. The power supply for the rotating double guide rails 7-1 is transmitted from the center of the turntable 7-2 through cable 7-9 and terminal block 7-10 to the power supply plate 7-11. In order for the conveyor vehicle 1 to be able to run in both directions, the inner sides of the double guide rails of the X-type variable track section 7 need to be powered.

[0097] Step D4: The cross-shaped track segment 8 rotates to two different positions via the central turntable 8-2, and the cross-shaped track segment 8 can obtain the following... Figure 23The system offers two conveying routes. A cross-shaped track-changing section 8 adds an extra node to the conveying line, allowing for more conveying options. The conveyor vehicle 1 can only pass through the cross-shaped track-changing section 8 in a straight line and cannot make 90° turns. The servo motor 8-7 of the cross-shaped track-changing section 8 is mounted at the lower end of the servo turntable 8-8. The rotation of the servo motor 8-7 drives the turntable 8-2 and the rotating double guide rails 8-1 to rotate together, causing both ends of the rotating double guide rails 8-1 to rotate according to a pre-programmed sequence and connect to either the fixed double guide rails 8-3 and 8-4, or the fixed double guide rails 8-5 and 8-6, forming two different conveying routes. To ensure a continuous power supply for the conveyor vehicle 1 within the cross-shaped track-changing section 8, the outer ends of the fixed double guide rails 8-3, 8-4, 8-5, and 8-6 are powered via rail connections 4. The power supply for the rotating double guide rails 8-1 is transmitted from the center of the turntable 8-2 through cables 8-9 and terminals 8-10 to the power supply plate 8-11. In order for the conveyor 1 to be able to run in both directions, the inner sides of the double guide rails of the cross-shaped track section 8 need to be powered.

[0098] Furthermore, step 6 of this embodiment also includes the following steps:

[0099] Step A1: Install a support plate 1-1 on the conveyor vehicle for supporting tooling and accurately positioning it. Below the support plate 1-1, a drive head connecting plate 1-2 is installed on the power supply drive head 1-4 and control drive head 1-5 of the conveyor vehicle 1. The support plate 1-1 is connected to the drive head connecting plate 1-2 via two sets of conical positioning pins 1-3. Conical holes are provided on the drive head connecting plate 1-2 corresponding to the positions of the conical positioning pins 1-3. Through the engagement of the conical positioning pins 1-3 and the conical holes, the support plate 1-1 is stably positioned on the drive head connecting plate 1-2 by gravity. A V-shaped groove is also provided on the side edge of the support plate 1-1 for positioning the conveyor vehicle. The V-shaped groove is used for positioning with the conveyor vehicle docking station 5. The power supply drive head 1-4 and control drive head 1-5 are rotatably connected to the drive head connecting plate below via a top drive head rotating shaft 1-6. The drive head rotating shaft 1-6 adapts to the operation of the conveyor vehicle 1 on the double-guide rail bend 3.

[0100] Step A2: Install drive geared motors 1-7 in both the power-driven head 1-4 and the control drive head 1-5. The two drive geared motors 1-7 increase the carrying capacity of the conveyor 1. The drive geared motors 1-7 output power to the drive wheel 1-12 through the synchronous belt 1-9, so that the conveyor 1 can get forward or backward power. In order to avoid the problem of asynchronous speed of the left and right wheels of the conveyor 1 during the turning process, the other side of the conveyor 1 adopts a driven wheel 1-13. The driven wheel 1-13 only serves to support the conveyor 1.

[0101] Step A3: Both the power drive head 1-4 and the control drive head 1-5 are equipped with guide wheels 1-14 to prevent derailment and guide shafts 1-15 for the guide wheels 1-14 to turn with the double guide rail bend 3. The guide shafts 1-14 are rotatably connected to the bottom of the drive head near the guide rail protrusion. The guide wheels 1-14 are mounted on the guide shafts 1-15 and are laterally rotatably connected to both sides of the guide rail protrusion.

[0102] Step A4: The power drive head 1-4 and the control drive head 1-5 are used for connecting to the power supply and for providing control signals, respectively;

[0103] Step A5: The power-taking drive head 1-4 is equipped with four power-taking wheels 1-16 arranged in two rows. The two power-taking wheels 1-16 in the upper row take 24V positive power from the guide rail, and the two power-taking wheels 1-16 in the lower row take 24V negative power from the guide rail. The power-taking wheels 1-16 are fixed on the power-taking wheel fixing seat 1-17 by shafts and bearings. The power-taking wheel fixing seat 1-17 installed on the conveyor 1 is made of insulating material. Each power-taking wheel 1-16 is equipped with a power-taking piece 1-18. Through the power-taking wheels 1-16, the power-taking pieces 1-18 and the power line, the 24V power on the guide rail is sent to the conveyor control circuit board 1-23 to power the drive reduction motor 1-7 and the sensor.

[0104] Step A6: A control circuit board 1-23 is arranged inside the control drive head 1-5. The power take-up wheel 1-16 sends electrical energy to the control circuit board 1-23 through the power line. The forward rotation, reverse rotation, acceleration, deceleration, and stop of the geared motor 1-7 are driven by the on / off signals of the proximity sensor 1-22 and the photoelectric sensor 1-24. The two proximity sensors 1-22 are arranged vertically. When the upper proximity sensor 1-22 has a signal, the conveyor 1 decelerates to prepare for stopping. When both the upper and lower proximity sensors 1-22 have signals, the conveyor 1 stops. When the lower proximity sensor 1-22 has a signal, the conveyor 1 accelerates. Photoelectric sensors 1-24 are arranged at both ends of the conveyor 1. When an object blocks the photoelectric sensor 1-24, the conveyor 1 stops to avoid collision.

[0105] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A conveying method for a self-propelled dual-track conveyor line, characterized in that, Includes the following steps: Step 1: The workstations corresponding to multiple processes in the factory are connected by a conveyor line, which consists of multiple sets of double guide rail straight sections and double guide rail curved sections; Step 2: An upper conveyor line is set above the conveyor line in Step 1. The upper conveyor line is used to connect one or more of the following: the repair station, the scrap recycling station, the high-configuration or low-configuration optional station, and the empty car return station of the conveyor vehicle. Step 3: A set of conveyor car lifting sections is used to connect the lower conveyor line and the upper conveyor line, and the conveyor car lifting sections are used to move the conveyor car between the lower conveyor line and the upper conveyor line; Step 4: Install a conveyor vehicle docking station connected to the conveyor line at each workstation. The conveyor vehicle docking station is used to accurately position the conveyor vehicles so that non-manual assembly equipment or loading and unloading equipment can be aligned and positioned. Step 5: Install track-changing sections on the upper and lower conveyor lines. The track-changing sections enable the conveyor vehicles to have different running trajectories, thereby matching different processes of the same product. Step 6: Use a self-driven conveyor to travel on the double-rail conveyor line, and power the conveyor to the conveyor to complete the transportation of goods. Step A1: Install a support plate on the conveyor vehicle to support the tooling and accurately position it. The support plate is connected to the two drive heads of the conveyor vehicle via a drive head connecting plate. The support plate is connected to the drive head connecting plate through two sets of conical positioning pin sleeves. The drive head connecting plate has conical holes at the positions corresponding to the conical positioning pin sleeves. Through the cooperation between the conical positioning pin sleeves and the conical holes, the support plate can be stably placed on the drive head connecting plate by gravity and accurately positioned. The side edge of the support plate is also provided with V-shaped grooves for positioning the conveyor vehicle. The V-shaped grooves are used for positioning with the conveyor vehicle at the docking station. The two drive heads are rotatably connected to the bottom of the drive head connecting plate via the top drive head shaft, and the drive head shaft adapts to the operation of the conveyor vehicle on the double guide rail bend. Step A2: Install drive reduction motors in both drive heads. The two drive reduction motors increase the carrying capacity of the conveyor. The drive reduction motors output power to the drive wheels of the drive heads through synchronous belts, so that the conveyor can get forward or backward power. In order to avoid the problem of asynchronous speed of the left and right wheels during the turning process of the conveyor, a driven wheel is used on the other side of the conveyor. The driven wheel only serves to support the conveyor. Step A3: Both drive heads are equipped with guide wheels to prevent derailment and guide shafts for the guide wheels to turn as the track curves. The guide shafts are rotatably connected to the bottom of the drive head near the guide rail protrusion. The guide wheels are mounted on the guide shafts and are laterally rotatably connected to both sides of the guide rail protrusion. Step A4: The two drive heads are a power-taking drive head for connecting to the power supply and a control drive head for control. Step A5: The power-collecting drive head is equipped with four power-collecting wheels arranged in two rows. The two power-collecting wheels in the upper row collect 24V positive power from the guide rail, and the two power-collecting wheels in the lower row collect 24V negative power from the guide rail. The power-collecting wheels are fixed to the power-collecting wheel mounting base by shafts and bearings. The power-collecting wheel mounting base installed on the conveyor is made of insulating material. Each power-collecting wheel is equipped with a power-collecting plate. One end of the power-collecting plate is connected to the power line on the power-collecting wheel mounting base, and the other end is pressed against the power-collecting wheel. Through the power-collecting wheels, power-collecting plates, and power lines, the 24V power on the guide rail is sent to the control circuit board of the conveyor to power the drive reduction motor and sensors. Step A6: A control circuit board is installed inside the control drive head. The power take-up wheel sends electrical energy to the control circuit board through the power line. The on / off signals of the sensors drive the geared motor to rotate forward, reverse, accelerate, decelerate, and stop. Two proximity sensors are arranged vertically. When the upper proximity sensor has a signal, the conveyor decelerates to prepare for stopping. When both sensors have signals, the conveyor stops. When the lower proximity sensor has a signal, the conveyor accelerates. Photoelectric sensors are installed at both ends of the conveyor. When an object blocks the photoelectric sensor, the conveyor stops to avoid collision.

2. The conveying method of a self-propelled dual-track conveyor line according to claim 1, characterized in that, Step 1 also includes the following steps: Step B1: Connect and fix the two sections of the guide rail using the connecting plate. At the same time, the 24V power supply on the guide rail is also supplied to the positive and negative terminals of the power supply piece on the guide rail through the external power supply post on the connecting plate. The positive and negative terminals of the power supply piece are installed on the side of the guide rail by an insulating strip. Installing the insulating strip can insulate the positive and negative terminals of the power supply piece from the guide rail. The 24V power supply energizes the positive and negative terminals of the power supply post on the guide rail through the cable, and provides power to the transport vehicle through the positive and negative terminals of the power supply piece.

3. The conveying method of a self-propelled dual-track conveyor line according to claim 1, characterized in that, Step 4 also includes the following steps: Step C1: When the conveyor vehicle arrives at the conveyor vehicle parking station, the support plate on the conveyor vehicle is lifted by about 1mm by the support wheel on the conveyor vehicle parking station, so that the tapered positioning pin sleeve of the support plate on the conveyor vehicle and the positioning pin of the drive head connecting plate are gapped up and down, which indirectly causes the support plate and the drive head connecting plate to have a floating amount of tapered hole size in the horizontal direction. Step C2: When the two proximity sensors on the conveyor vehicle detect the stop block on the conveyor vehicle stop station, the conveyor vehicle stops. The positioning motor of the conveyor vehicle stop station runs and drives the rack through the gear to extend the V-shaped positioning block on the rack and position it with the V-shaped groove of the support plate. At the same time, the support plate is pressed against the guide wheel on the side of the conveyor vehicle stop station, so that the conveyor vehicle stop station is positioned with the conveyor vehicle.

4. The conveying method of a self-propelled dual-track conveyor line according to claim 1, characterized in that, Step 5 also includes the following steps: Step D1: By using the T-shaped, X-shaped, and cross-shaped guide rail sections installed on the conveyor line, the conveyor line is made into multiple parallel branches; Step D2: The servo motor in the T-shaped track-changing section is installed at the lower end of the servo turntable. The rotation of the servo motor drives the turntable and the rotating double guide rails to rotate together, so that the two ends of the rotating double guide rails are connected to the four fixed double guide rails according to the pre-programmed paths, forming three different conveying routes. In order to ensure that the conveyor car always has a power supply in the T-shaped track-changing section, the outer end of the fixed double guide rails is directly connected to the wiring cable. The power supply of the rotating double guide rails on the turntable is sent from the center of the turntable to the power supply plate on the rotating double guide rails through the cable and the terminal block. In order to enable the conveyor car to run in both directions, the inner side of the double guide rails in the T-shaped track-changing section is powered. Step D3: The servo motor of the X-shaped track-changing section is installed at the lower end of the servo turntable. The servo motor rotates, driving the turntable and the rotating double guide rail to rotate together, so that the two ends of the rotating double guide rail are connected to the four fixed double guide rails according to the pre-programmed paths, forming three different conveying routes. In order to ensure that the conveyor car always has a power supply in the X-shaped track-changing section, the outer end of the fixed double guide rail is directly connected to the wiring cable. The power supply of the rotating double guide rail on the turntable is sent from the center of the turntable to the power supply plate on the rotating double guide rail through the cable and the terminal block. In order to enable the conveyor car to run in both directions, the inner side of the double guide rail of the X-shaped track-changing section needs to be powered. Step D4: The servo motor of the cross-shaped track changing section is installed at the lower end of the servo turntable. The servo motor rotates, driving the turntable and the rotating double guide rails to rotate together, so that the two ends of the rotating double guide rails are connected to the four fixed double guide rails according to the pre-programmed paths, forming two different conveying routes. In order to ensure that the conveyor car always has a power supply in the cross-shaped track changing section, the outer end of the fixed double guide rails is directly connected to the wiring cable. The power supply of the rotating double guide rails on the turntable is sent from the center of the turntable to the power supply plate on the rotating double guide rails through the cable and the terminal block. In order for the conveyor car to run in both directions, the inner side of the double guide rails in the cross-shaped track changing section needs to be powered.

5. The conveying method of a self-propelled dual-track conveyor line according to claim 1, characterized in that, Step 3 also includes the following steps: Step E1: The two conveyor lifting sections work together to make the conveyor circulate up and down; Step E2: In order to ensure that the conveyor vehicle always has a power supply on the lifting double guide rails of the lifting section, the power supply of the lifting double guide rails is delivered to the power supply plate of the lifting double guide rails through cables and terminals. The induction block on the lifting double guide rails causes the conveyor vehicle to decelerate and stop when passing through the lifting double guide rails. Step E3: The lifting servo motor of the conveyor lifting section operates, transmitting power to the drive synchronous belt through the synchronous belt, pulley, drive shaft, and drive pulley. The lifting double guide rails are fixedly connected to the slide table, and the slide table moves up and down along the guide rail direction under the action of the drive synchronous belt. The counterweight of the conveyor lifting section is used to balance the weight of the conveyor, tooling, and slide table, thereby reducing the power of the servo motor.

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