Automatic mounting method for MC4 cable lug

Abstract

The invention discloses an MC4 wire nose automatic installation method which comprises the following steps that MC4 wire noses sequentially fall into a feeding wheel and then fall onto a conveying belt through an automatic arrangement device, the directions of the MC4 wire noses are detected, the MC4 wire noses with the wrong directions are adjusted, the MC4 wire noses are kept in the needed directions, and finally the MC4 wire noses fall into a wire nose pressing device through the conveying belt. Meanwhile, one end of the direct-current cable is manually fed into the automatic wire stripping device, the skin cutting and peeling process of the direct-current cable is achieved through the automatic wire stripping device, then an exposed wire of the direct-current cable extends into an MC4 wire nose, and subsequent pressing work is completed through the wire nose pressing device; the device has the advantages that automatic installation of the MC4 wire nose is achieved through the device, manual operation links are reduced, and efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic technology, and in particular to an automatic installation method for an MC4 line nose. Background Art

[0002] A cable lug is a small component used for wiring in power equipment. With industrial development, the need for wiring has greatly increased, and the use of small components such as cable lugs for power equipment is becoming increasingly widespread. The current installation process is manual, using tools to remove the sheath of the DC cable to expose the conductors. A cable lug is then inserted into the lug, and the lug is pressed using a pressing tool.

[0003] However, the wire noses are usually piled together in a disorderly manner. When taking them out, one needs to pay attention to the direction of the wire noses and use a variety of tools. This is inconvenient and cumbersome to operate, which greatly reduces the efficiency of the workers. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the existing wire nose installation process is purely manual and requires the use of multiple tools, which is cumbersome and inefficient. In addition, since the wire noses are placed irregularly, it is also necessary to pay attention to the direction of the wire nose when using it. To solve the above problems, an automatic installation method for MC4 wire noses is proposed, which includes the following steps: Step 1: Place the MC4 wire nose into the hopper of the wire nose automatic arrangement device. Under the stirring action of the stirring wheel, only one MC4 wire nose falls each time and enters the receiving groove of the feeding wheel; Step 2: The loading wheel rotates 180°, and the MC4 wire nose falls vertically onto the conveyor belt. The second optical coupler detects whether the direction of the MC4 wire nose is correct. If the direction of the MC4 wire nose is correct, go directly to step 5. If the direction of the MC4 wire nose is incorrect, go to step 3. Step 3: The conveyor belt transports the MC4 wire nose toward the exit. After the third optical coupler detects the MC4 wire nose, the conveyor belt stops temporarily. Step 4: The electromagnet is energized to generate magnetic attraction, which draws the rotating disk downward. The rotating disk wraps around and fits the MC4 wire nose. The rotating disk then rotates 180° to adjust the direction of the MC4 wire nose 180°. The electromagnet is powered off, the rotating disk returns to its original position, and the conveyor belt restarts. Step 5: The conveyor belt transports the MC4 wire nose to the exit, and then the MC4 wire nose falls onto the wire pressing device under the conveyor belt, which clamps and positions the MC4 wire nose; Step 6: Manually feed one end of the DC cable into the automatic stripping device and secure it with the wire clamp. Start the electric push rod, which drives the DC cable to move along the fan-shaped guide rail. Step 7: Move the DC cable along the sector-shaped guide rail, and use the skin-breaking knife provided on the sector-shaped guide rail to cut the outer sheath of the DC cable head for a distance; Step 8: After the skin-breaking knife cuts the outer skin, it moves outward, and then the DC cable moves into the wire feeder. The wire feeder guides the DC cable toward the MC4 wire nose; Step 9: The DC cable continues to move. When the cut outer sheath ends enter the wire feeder, they are cut off by the peeling knife on the wire feeder. The exposed conductors of the DC cable are guided by the wire feeder and gradually extend into the MC4 wire nose. Step 10: Start the wire nose crimping device again to crimp the MC4 wire nose, connect the DC cable to the MC4 wire nose, and then remove the entire lug. Insulate the connection and the MC4 wire nose is crimped.

[0005] The technical solution of this embodiment uses an automatic wire nose arrangement device, and the feeding wheel conveys one MC4 wire nose at a time to avoid confusion. At the same time, the rotating disk and the electromagnet cooperate to adjust the direction of the MC4 wire nose so that all MC4 wire noses are in the required direction, which is convenient for the subsequent pressing process; the automatic wire stripping device can cut and remove the outer sheath of one end of the DC cable, and the exposed wire of the DC cable after peeling is fed into the MC4 wire nose, and the pressing work is completed by the wire pressing nose device.

[0006] Preferably, the wire nose automatic arrangement device includes a hopper, a stirring wheel, a feeding wheel, a conveyor belt, a rotating disk and an electromagnet. The hopper is dropped to the ground through a bracket. An outlet is provided at the lower part of the hopper. The stirring wheel is rotatably connected in the hopper. The feeding wheel is located below the hopper outlet. The conveyor belt is located below the feeding wheel. The rotating disk is located above the conveyor belt. The electromagnet is arranged below the rotating disk and between the upper and lower belt surfaces of the conveyor belt.

[0007] Preferably, the loading wheel is provided with two receiving grooves, which are symmetrically distributed at 180°. When one receiving groove moves to the top to receive an MC4 wire nose, the other receiving groove moves to the bottom, causing the existing MC4 wire nose inside to fall onto the conveyor belt.

[0008] Preferably, the outside of the loading wheel is provided with an outer cover, and the upper and lower parts of the outer cover are respectively provided with an opening matching the storage slot. The outer cover is used to prevent the MC4 wire nose from accidentally falling. Only when the storage slot coincides with the opening can the MC4 wire nose be received through the storage slot or the MC4 wire nose in the storage slot fall off.

[0009] In the preferred technical solution of the present invention, a first optical coupler for detecting the presence or absence of a MC4 wire nose is provided at the upper opening of the outer cover; the second optical coupler and the third optical coupler are both arranged on the conveyor belt, the second optical coupler is located below the loading wheel, and the third optical coupler is located below the rotating disk. When the first optical coupler detects the presence of a MC4 wire nose, the loading wheel enters working and rotates 180°. The second optical coupler is used to determine the direction of the MC4 wire nose, and whether to adjust the direction of the MC4 wire nose is selected as needed. The third optical coupler is used for positioning. When the MC4 wire nose needs to adjust the direction, the MC4 wire nose pauses when it moves to the position of the third optical coupler, and continues to move after adjusting the direction.

[0010] In a preferred embodiment of the technical solution of the present invention, a pulley cover is provided at the outlet of the conveyor belt, and the pulley cover limits the MC4 wire nose so that the MC4 wire nose can only fall into the wire pressing nose device.

[0011] The preferred technical solution of the present invention is that the automatic wire stripping device includes a base body, a wire clamp, an electric push rod, a fan-shaped guide rail, a wire pressing nose device and a wire feeder. The base body is connected to the bracket of the silo, the electric push rod is arranged on the base body, the fan-shaped guide rail is arranged above the electric push rod, the wire clamp is slidably connected to the fan-shaped guide rail and connected to the electric push rod, the wire pressing nose device is arranged on the base body and located below the conveyor belt, the wire feeder is arranged on the base body and located between the wire pressing nose device and the fan-shaped guide rail, the automatic wire stripping device is used to process the DC cable, remove the outer sheath of the DC cable head end, and expose the internal wire for subsequent wire nose pressing link, the wire clamp is used to fix the DC cable to prevent the DC cable from detaching from the fan-shaped guide rail, the wire pressing nose device is used to position the MC4 wire nose, and after the wire enters, further complete the pressing work, and the wire feeder is used to guide the DC cable so that the exposed wire enters the MC4 wire nose.

[0012] In the preferred embodiment of the technical solution of the present invention, the wire pressing nose device is driven by a motor, and the clamps on both sides move synchronously toward or relative to each other. The clamps move synchronously to ensure that the MC4 wire nose is always in the center position, so that the wire can smoothly enter the MC4 wire nose.

[0013] Preferably, the wire feeder is provided with a guide groove, which is perpendicular to the center of the two clamping plates of the wire pressing nose device. The guide groove is used to make the exposed wires of the DC cable face and extend into the MC4 wire nose to facilitate the subsequent pressing work.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The technical solution of the present invention uses an automatic wire nose arrangement device, and the feeding wheel conveys one MC4 wire nose at a time to avoid confusion. At the same time, the rotating disk and the electromagnet cooperate to adjust the direction of the MC4 wire nose so that the directions of all MC4 wire noses are in the required direction, which is convenient for the subsequent pressing process; through the automatic wire stripping device, the outer sheath of one end of the DC cable can be cut and removed, and the exposed wire of the DC cable after peeling is fed into the MC4 wire nose, and the pressing work is completed by the wire pressing nose device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the present invention; Figure 2 It is a partial elevational schematic diagram of the present invention; Figure 3 The automatic wire stripping device of the present invention is partially detailed. Figure 1 ; Figure 4 The automatic wire stripping device of the present invention is partially detailed. Figure 2 ; Among them: 1- silo, 2- stirring wheel, 3- feeding wheel, 4- storage trough, 5- conveyor belt, 6- first optical coupler, 7- second optical coupler, 8- rotating disk, 9- third optical coupler, 10- electromagnet, 11- pulley cover, 12- wire clamp, 13- electric push rod, 14- fan-shaped guide rail, 15- skinning knife, 16- wire pressing nose device, 17- wire feeder, 18- peeling knife, 19- guide groove. DETAILED DESCRIPTION

[0016] The following is a combination of the embodiments of the present invention Figure 1-4 , the technical solutions in the embodiments of the present invention are described in detail. Example 1

[0017] like Figure 1-4 As shown, the present invention is an automatic installation method for MC4 wire noses. The pressing process of the MC4 wire noses is realized through an automatic wire nose arrangement device and an automatic wire stripping device. The electrical structures in this device are electrically connected to an external control computer, and combined with partial manual operation, it can greatly save manpower and improve work efficiency.

[0018] The automatic arrangement device for wire noses includes a hopper 1, a stirring wheel 2, a feeding wheel 3, a conveyor belt 5, a rotating disk 8 and an electromagnet 10.

[0019] The silo 1 is used to hold the MC4 wire nose. The silo 1 is directly placed on the ground through the bracket. There is an outlet at the bottom of the silo 1, and the outlet of the silo 1 can only pass one MC4 head wire nose at a time; a stirring wheel 2 is installed inside the silo 1. The stirring wheel 2 is driven by a motor. The stirring wheel 2 can stir the MC4 wire nose in the silo 1 to prevent the MC4 wire nose from accumulating and blocking the outlet after it stops, affecting the normal operation of the device.

[0020] The cross-section of the stirring wheel 2 is preferably in the shape of a petal, which can better stir the MC4 wire nose. At the same time, the concave edge of the stirring wheel 2 can accommodate an MC4 head wire nose, which cooperates with the outlet of the silo 1 so that only one MC4 head wire nose falls from the outlet of the silo 1 at a time.

[0021] The loading wheel 3 is rotatably connected to the lower side of the outlet of the silo 1 and can be fixedly supported by a bracket of the silo 1. The loading wheel 3 is driven by a motor.

[0022] Two receiving grooves 4 are formed on the feeding wheel 3 through an inward concave portion. The receiving grooves 4 are used to receive the MC4 wire noses dropped from the silo 1 . The two receiving grooves 4 are symmetrical to each other and are distributed at 180 degrees on both sides of the feeding wheel 3 .

[0023] An outer cover is provided on the outside of the feeding wheel 3, and the outer cover is fixedly connected to the bracket of the silo 1. The outer cover is stationary, and an opening is respectively provided at the upper and lower parts of the outer cover. The specifications of the opening match the receiving groove 4. Only when the receiving groove 4 moves to the opening can the MC4 wire nose be received or the MC4 wire nose be dropped onto the conveyor belt 5.

[0024] When the feeding wheel 3 rotates, one of the receiving slots 4 rotates to the top and is located just below the outlet of the silo 1. An MC4 wire nose falls from the silo 1 and enters the receiving slot 4. As the feeding wheel 3 continues to rotate, the receiving slot 4 with the MC4 wire nose moves to the bottom, and the MC4 wire nose falls from it and falls above the conveyor belt 5. At the same time, another receiving slot 4 rotates to the top. This is a cycle, and continuous repetition can achieve continuous transfer of MC4 wire noses.

[0025] A first optical coupler 6 is installed at the opening on the upper part of the outer cover. The first optical coupler 6 is used to detect whether an MC4 wire nose enters the silo 1 and falls into the storage groove 4. The first optical coupler 6 belongs to the existing technology.

[0026] The conveyor belt 5 is a prior art, and the conveyor belt 5 can be fixedly connected to the bracket of the silo 1 and then fall to the ground.

[0027] The conveyor belt 5 is equipped with a second optical coupler 7 below the loading wheel 3. The second optical coupler 7 is fixedly mounted on the frame body of the conveyor belt 5 and will not move with the belt surface of the conveyor belt 5. The second optical coupler 7 is used to detect whether the direction of the MC4 wire nose is the required direction.

[0028] The conveyor belt 5 is also equipped with a third optical coupler 9 between the loading wheel 3 and the outlet. The third optical coupler 9 is also installed on the frame body of the conveyor belt 5. The third optical coupler 9 is used to position the MC4 wire nose. If the direction of the MC4 wire nose is wrong, it will pause to adjust its direction. If the direction of the MC4 wire nose is correct, there is no need to pause.

[0029] The rotating disk 8 is connected to the frame body of the conveyor belt 5 and is located above the third optical coupler 9. The rotating disk 8 can move in the vertical direction. For example, the rotating disk 8 is guided by a guide rod to achieve vertical movement. At the same time, a tension spring is mounted on the guide rod. One end of the tension spring is connected to the upper surface of the rotating disk 8, and the other end is fixed to the guide rod. The rotating disk 8 moves under the action of external force, and returns to its original state through the action of the tension spring after the external force is removed.

[0030] The rotating disk 8 is driven to rotate by a motor. The material of the rotating disk 8 can be magnetically attracted. The electromagnet 10 is installed below the rotating disk 8 and is located between the upper and lower belt surfaces of the conveyor belt 5. The electromagnet 10 is energized to generate magnetic attraction, which can attract the rotating disk 8 downward, and then the rotating disk 8 rotates 180° to adjust the direction of the MC4 wire nose.

[0031] A pulley cover 11 is provided at the outlet of the conveyor belt 5. The pulley cover 11 is connected to the frame body of the conveyor belt 5 and wrapped around the outer periphery of the belt surface of the conveyor belt 5. There is a space between the pulley cover 11 and the belt surface. The MC4 wire nose is guided through the space and then falls from the lower surface of the conveyor belt 5 into the wire pressing nose device 16.

[0032] The wire pressing nose device 16 is driven by a motor so that the two clamps can move synchronously toward or relative to each other. The specific structure is not limited. For example, the clamps can move synchronously toward or relative to each other through gear matching or a screw rod with opposite threads at both ends.

[0033] After the MC4 wire nose falls from the transmission belt 5, it is located between the two clamping plates. The clamping plates move relative to each other synchronously to clamp and position the MC4 wire nose so that the conductor of the DC cable can enter the MC4 wire nose. Then the clamping plates move further relative to each other to realize the pressing of the MC4 wire nose. After the pressing is completed, the clamping plates move toward each other and the pressed MC4 wire nose can be taken out.

[0034] The automatic wire stripping device includes a base body, a wire clamp 12 , an electric push rod 13 , a fan-shaped guide rail 14 , a wire pressing nose device 16 and a wire feeder 17 .

[0035] The base body is fixedly connected to the bracket of the silo 1 by bolts, which provides installation space for the rest. The electric push rod 13 is installed on the base body by bolts, and the electric push rod 13 is parallel to the conveyor belt 5. The electric push rod 13 is existing technology.

[0036] The fan-shaped guide rail 14 is installed on the base body through a bracket, etc. The fan-shaped guide rail 14 is formed by two identical blocks approaching each other. The two blocks approaching each other form a track space for passing the DC cable. The cross-section of the block is "L"-shaped, and the right angles of the "L" shape are rounded to facilitate the passage of the DC cable. The track space of the fan-shaped guide rail 14 is connected to the outside in the vertical direction, and the lower part of the track space of the fan-shaped guide rail 14 is closed by a limit plate, that is, except for the two ends, only the upper part of the track space of the fan-shaped guide rail 14 is connected to the outside. When the DC cable is guided by the fan-shaped guide rail 14, the limit plate at the bottom can prevent the DC cable from falling out, while the upper part is connected to the outside, which is convenient for taking out all the pressed DC cables and MC4 connectors.

[0037] The wire clamp 12 is slidably connected to the fan-shaped guide rail 14. The wire clamp 12 includes two clamping blocks, which are respectively slidably connected to the upper and lower surfaces of the fan-shaped guide rail 14, and then clamp and fix the DC cable. The wire clamp 12 is connected to the electric push rod 13. Through the movement of the electric push rod 13, the DC cable can be driven to move along the fan-shaped guide rail 14. The two blocks of the wire clamp 12 can be quickly connected by snapping or magnetic attraction, and after the pressing is completed, they can be quickly opened to facilitate the removal of the DC cable.

[0038] After the wire clamp 12 clamps the DC cable, there is still a certain distance from the end of the DC cable. This part is used to break the skin and peel off the wire to expose the wire, which is convenient for the subsequent pressing of the MC4 wire nose.

[0039] It should be noted that the limit plate at the bottom of the fan-shaped guide rail 14 is not completely closed, and a through groove can be opened in the middle position. The block at the bottom of the wire clamp 12 can be extended into the track space through the barrel groove and attached to the DC cable, so as to facilitate clamping and fixing the DC cable. The movable end of the wire clamp 12 and the electric push rod 13 adopts a soft connection, such as through a pull rope. The pull rope can change its shape at will, and the pull rope is driven to move by the electric push rod 13. The pull rope will pull the wire clamp 12 to move along the fan-shaped guide rail 14.

[0040] According to the example in the attached drawings, the electric push rod 13 in this embodiment drives the wire clamp 12 to move downward first and then upward, and the extension direction of the electric push rod 13 is along the left and right directions. It should be noted that when the electric push rod 13 drives the wire clamp 12 to move to the right end, the pressing work of an MC4 connector is completed. After being removed, the electric push rod 13 returns to its initial position and drives the wire clamp back to the left, but will not return to the top end. It is necessary to manually move the wire clamp 12 to the top end and clamp the new DC cable again to continue the pressing work.

[0041] A skin-breaking knife 15 is installed at the end of the fan-shaped guide rail 14. The skin-breaking knife 15 is located inside the guide rail space. The skin-breaking knife 15 is circular. The spacing between the two skin-breaking knives 15 is smaller than the diameter of the DC cable. Therefore, when the DC cable passes between the skin-breaking knives 15, its outer skin will be cut. The skin-breaking knives 15 can move relative to or towards each other at the same time. The specific structure can be achieved by two synchronously controlled electric push rods. The electric push rods are fixedly connected to both sides of the fan-shaped guide rail, and their movable parts are fixedly connected to a fork frame. The skin-breaking knife 15 is rotatably connected to the fork frame.

[0042] In the initial state, the skin-breaking knife 15 is located at the outermost side in the adjustable state. When the electric push rod 13 starts to drive the DC cable to move, the skin-breaking knife 15 moves inward synchronously under the push of the electric push rod. When the DC cable passes between the two skin-breaking knives 15, the skin-breaking knife 15 will cut the outer skin of the DC cable, and as the DC cable moves, the skin-breaking knife 15 starts to rotate.

[0043] The skin-breaking knife 15 is flush with the end surface and the fan-shaped guide rail 14, and a scanning point is set on the skin-breaking knife 15. A laser sensor is set on the fork frame. The laser sensor matches the scanning point. Through the cooperation of the laser sensor and the scanning point, the number of rotations of the skin-breaking knife 15 can be obtained, that is, the distance that the skin-breaking knife 15 cuts the skin can be obtained. When a certain number of circles is reached, the laser sensor sends a signal to control the electric push rod to drive the skin-breaking knife 15 to move outward at the same time. At this time, the distance between the two skin-breaking knives 15 is sufficient for the DC cable to pass smoothly and will not continue to cut the skin.

[0044] As the electric push rod 13 continues to move, the end of the DC cable gradually detaches from the fan-shaped guide rail 14 and enters the wire feeder 17. The wire feeder 17 has a guide groove 19 on the surface facing the fan-shaped guide rail 14. The guide groove 19 faces the wire pressing nose device 16 and is aligned with the center of the two clamping plates of the wire pressing nose device 16. It should be noted that the electric push rod 13 drives the DC cable to move, and the wire clamp 12 is always slidably connected to the fan-shaped guide rail 14 and will not fall off the fan-shaped guide rail 14.

[0045] Peeling knives 18 are installed on the upper and lower sides of the guide groove 19. The peeling knives 18 face the fan-shaped guide rail 14, and the two peeling knives 18 are parallel to the upper and lower surfaces of the fan-shaped guide rail 14. When the DC cable with the broken skin extends out of the fan-shaped guide rail 14, the cut skin will bend in the upper and lower directions respectively, and the guide groove 19 can only pass the conductor part of the DC cable. Therefore, the broken skin of the DC cable cannot enter the guide groove 19 and will be blocked outside the guide groove 19 by the peeling knife 18. As the DC cable continues to extend, the root of the cut skin gradually approaches the peeling knife 18. Since this part is still connected to the skin, as the DC cable continues to move, the peeling knife 18 will cut the skin from here, leaving only the bare wire at the end of the DC cable.

[0046] The exposed wire is guided by the guide groove 19 and eventually enters the MC4 wire nose. Then the wire pressing nose device 16 works again, further squeezing inward through the two clamping plates to complete the pressing work, so that the conductor part of the DC cable is connected to the MC4 wire nose.

[0047] After completion, remove the DC cable and MC4 wire nose together, perform appropriate treatment on the connection, and wrap it with insulating tape to avoid subsequent safety accidents.

[0048] An automatic installation method of an MC4 line nose in this embodiment is as follows: Step 1: Place the MC4 wire nose into the silo 1 and start the stirring wheel 2. Under the stirring action of the stirring wheel 2, the MC4 wire nose in the silo 1 is stirred to prevent it from being blocked at the outlet of the silo 1. Through the action of the stirring wheel 2, only one MC4 wire nose falls from the outlet of the silo 1 at a time and enters the receiving groove 4 of the feeding wheel 3; Step 2: The first optical coupler 6 passes the detection and transmits the data to the mobile terminal. The mobile terminal determines whether there is an MC4 wire nose in the storage slot 4 based on the data. When there is an MC4 wire nose in the storage slot 4, the loading wheel 3 starts to rotate 180 degrees, and the storage slot 4 at the top moves to the bottom. Then the MC4 wire nose falls vertically onto the conveyor belt 5. Due to the limit of the outer cover, the MC4 wire nose will not fall accidentally during the process. Then the second optical coupler 7 passes the data to the mobile terminal after detection. The mobile terminal determines whether the direction of the MC4 line nose is the required direction based on the data. At this time, there are only two possible directions of the MC4 line nose: one is the required direction, and the other is the opposite of the required direction. If the direction of the MC4 line nose is correct, the process directly proceeds to step 5. If the direction of the MC4 line nose is incorrect, the process proceeds to step 3. Step 3: The conveyor belt 5 starts to move forward, driving the MC4 line nose to transport it toward the exit. After the third optical coupler 9 detects the MC4 line nose, the mobile terminal sends a signal to control the conveyor belt 5 to stop temporarily. Step 4: The mobile terminal sends a signal to energize the electromagnet 10, causing it to generate a magnetic attraction, which attracts the rotating disk 8 downward, so that the rotating disk 8 wraps around and fits the periphery of the MC4 wire nose. The mobile terminal then sends a signal to control the motor to rotate, causing the rotating disk 8 to rotate 180°, adjusting the direction of the MC4 wire nose by 180°, thereby adjusting the direction of the MC4 wire nose to the desired direction. The electromagnet 10 is then powered off, the magnetic attraction disappears, and the rotating disk 8 automatically returns to its initial position upward. The conveyor belt 5 then restarts, driving the MC4 wire nose to continue moving toward the exit. Step 5: The conveyor belt 5 transports the MC4 wire nose to the exit. Under the obstruction of the pulley cover 11, the MC4 wire nose passes through the space between the pulley cover 11 and the belt surface of the conveyor belt 5, and then falls onto the wire pressing device 16 under the conveyor belt 5. The wire pressing device 16 is started by the motor, so that the clamping plates on both sides move relative to each other at the same time, clamping and positioning the MC4 wire nose for subsequent pressing work. It should be noted that at this time, the clamping plates only fit the MC4 wire nose, and do not tighten the MC4 wire nose and generate a large clamping force on it. Step 6: Open the wire clamp 12, manually feed one end of the DC cable into the wire clamp 12 of the automatic wire stripping device, and ensure that the end of the DC cable is at a certain distance from the wire clamp 12. Then fix the wire clamp 12 by means of a bayonet or the like to clamp the DC cable, and then start the electric push rod 13, which drives the DC cable to move along the sector guide rail 14 along the guide rail space inside it; Step seven: after the electric push rod 13 is started, the skin-breaking knife 15 located at the end of the fan-shaped guide rail 14 starts to enter the working state, and is synchronously moved inward by the action of the electric push rod. As the electric push rod 13 drives the DC cable to move along the fan-shaped guide rail 14, the end of the DC cable gradually approaches and passes between the two skin-breaking knives 15. When the DC cable passes, the outer skin contacts the skin-breaking knife 15 and is cut. The skin-breaking knife 15 rotates as the DC cable moves. The number of circles rotated by the skin-breaking knife 15 can be obtained by the cooperation of the laser sensor and the scanning point, that is, the distance by which the outer skin of the DC cable is broken can be obtained. When the skin-breaking knife 15 rotates a certain number of circles, the cut length of the DC cable outer skin is sufficient, and the laser sensor sends a signal. At this time, the electric push rod starts working, driving the skin-breaking knife 15 to move outward synchronously, and the DC cable continues to move, and the outer skin will not be cut any more. Step 8: As the electric push rod 13 continues to move, the end of the DC cable gradually extends out of the right end of the fan-shaped guide rail 14. Since the outer skin of the fan-shaped guide rail is cut, the broken outer skin will open in the upper and lower directions respectively. The DC cable continues to move and enters the guide groove 19 of the wire feeder 17; Step 9: The guide groove 19 can only pass the conductor part of the DC cable. The cut outer sheath is isolated outside the guide groove 19. As the DC cable moves, the end of the cut outer sheath gradually fits into the peeling knife 18 above and below the guide groove 19 and is cut off by the peeling knife. At this time, only the bare wire is left at the end of the DC cable. Under the guidance of the guide groove 19 of the wire feeder 17, the wire gradually extends into the MC4 wire nose; Step 10: The wire nose pressing device 16 is started again, and under the action of power, the two clamps are further squeezed inward to press the MC4 wire nose, so that the conductor part of the DC cable is tightly connected to the MC4 wire nose. Then the wire clamp 12 is opened, the reinforced DC cable and the MC4 wire nose are completely taken out, and the connection between the conductor and the MC4 wire nose is wrapped with insulating tape to improve the insulation performance and avoid safety accidents. At this point, the MC4 wire nose is pressed.

[0049] The above embodiments are only for illustrating the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention fall within the protection scope of the present invention.

Claims

1. An automatic installation method for MC4 wire nose, characterized by: The following steps are involved: Step 1: Place the MC4 wire nose into the hopper (1) of the wire nose automatic arrangement device. Under the stirring action of the stirring wheel (2), only one MC4 wire nose falls each time and enters the receiving groove (4) of the feeding wheel (3); Step 2: The loading wheel (3) rotates 180 degrees, and the MC4 wire nose falls vertically onto the conveyor belt (5). The second optical coupler (7) detects whether the direction of the MC4 wire nose is correct. If the direction of the MC4 wire nose is correct, the process goes directly to step 5. If the direction of the MC4 wire nose is incorrect, the process goes to step 3. Step 3: The conveyor belt (5) transports the MC4 wire nose toward the exit. After the third optical coupler (9) detects the MC4 wire nose, the conveyor belt (5) stops temporarily. Step 4: The electromagnet (10) is energized to generate a magnetic attraction, which attracts the rotating disk (8) downward, and the rotating disk (8) wraps and fits the MC4 wire nose. Then the rotating disk (8) rotates 180° to adjust the direction of the MC4 wire nose by 180°. The electromagnet (10) is powered off, the rotating disk (8) returns to its original position, and the conveyor belt (5) is restarted; Step 5: The conveyor belt (5) transports the MC4 wire nose to the exit, and then the MC4 wire nose falls onto the wire pressing device (16) below the conveyor belt (5), and the wire pressing device (16) clamps and positions the MC4 wire nose; Step 6: Manually feed one end of the DC cable into the automatic wire stripping device and fix it with the wire clamp (12), start the electric push rod (13), and the electric push rod (13) drives the DC cable to move along the fan-shaped guide rail (14); Step 7: The DC cable moves along the fan-shaped guide rail (14), and the outer skin of the DC cable head end is cut a distance by a skin-breaking knife (15) provided on the fan-shaped guide rail (14); Step 8: After the skin-breaking knife (15) cuts the outer skin, it moves outward, and then the DC cable moves into the wire feeder (17), and the DC cable is guided by the wire feeder (17) so that it faces the MC4 wire nose; Step 9: The DC cable continues to move, and the cut outer skin end is cut off by the peeling knife (18) on the wire feeder (17) when entering the wire feeder (17). The exposed wire of the DC cable gradually extends into the MC4 wire nose under the guidance of the wire feeder (17); Step 10: The wire nose pressing device (16) is started again to press the MC4 wire nose so that the DC cable is connected to the MC4 wire nose, and then the entire device is removed and the connection is insulated. The pressing of the MC4 wire nose is completed.

2. The MC4 wire nose automatic installation method according to claim 1, characterized in that: The wire nose automatic arrangement device includes a silo (1), a stirring wheel (2), a feeding wheel (3), a conveyor belt (5), a rotating disk (8) and an electromagnet (10). The silo (1) is lowered to the ground through a bracket. An outlet is provided at the lower part of the silo (1). The stirring wheel (2) is rotatably connected in the silo (1). The feeding wheel (3) is located below the outlet of the silo (1). The conveyor belt (5) is located below the feeding wheel (3). The rotating disk (8) is located above the conveyor belt (5). The electromagnet (10) is arranged below the rotating disk (8) and between the upper and lower belt surfaces of the conveyor belt (5).

3. The MC4 wire nose automatic installation method according to claim 2, characterized in that: The loading wheel (3) is provided with two receiving grooves (4), and the receiving grooves (4) are symmetrically distributed at 180°.

4. The MC4 wire nose automatic installation method according to claim 3, characterized in that: The outside of the loading wheel (3) is provided with an outer cover, and the upper and lower parts of the outer cover are respectively provided with an opening matching the receiving groove (4).

5. The MC4 wire nose automatic installation method according to claim 4, characterized in that: A first optical coupler (6) for detecting the presence or absence of an MC4 wire nose is provided at the upper opening of the outer cover; the second optical coupler (7) and the third optical coupler (9) are both provided on the conveyor belt (5), the second optical coupler (7) is located below the loading wheel (3), and the third optical coupler (9) is located below the rotating disk (8).

6. The MC4 wire nose automatic installation method according to claim 1, characterized in that: A pulley cover (11) is provided at the outlet of the conveyor belt (5).

7. The MC4 wire nose automatic installation method according to claim 2, characterized in that: The automatic wire stripping device includes a base body, a wire clamp (12), an electric push rod (13), a fan-shaped guide rail (14), a wire pressing nose device (16) and a wire feeder (17), the base body is connected to the bracket of the silo (1), the electric push rod (13) is arranged on the base body, the fan-shaped guide rail (14) is arranged above the electric push rod (13), the wire clamp (12) is slidably connected to the fan-shaped guide rail (14) and connected to the electric push rod (13), the wire pressing nose device (16) is arranged on the base body and located below the conveyor belt (5), and the wire feeder (17) is arranged on the base body and located between the wire pressing nose device (16) and the fan-shaped guide rail (14).

8. The MC4 wire nose automatic installation method according to claim 7, characterized in that: The wire pressing nose device (16) is driven by a motor, and the clamping plates on both sides move synchronously toward or relative to each other.

9. The MC4 wire nose automatic installation method according to claim 1, characterized in that: The wire feeder (17) is provided with a guide groove (19), and the guide groove (19) is vertically oriented toward the center of the two clamping plates of the wire pressing nose device (16).

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