Charging gun mutual inductor mounting device and mounting method thereof

Abstract

The invention discloses an installation device of a charging gun mutual inductor and an installation method of the installation device, and relates to the technical field of mutual inductor manufacturing equipment. The conveying belt assembly is laid on the rack; the transfer tray is detachably placed on the conveying belt assembly and is synchronously conveyed by the conveying belt assembly in the conveying direction; the circulation tray is integrated with a workpiece groove used for positioning and placing a to-be-assembled workpiece protective shell, a workpiece clamping mechanism used for fixing a to-be-assembled workpiece and a copper wire clamping ring used for fixing a to-be-assembled workpiece copper wire. The multi-station execution system comprises a plurality of operation stations which are sequentially arranged in the conveying direction of the conveying belt assembly, and each operation station is provided with a corresponding execution component; the controller is electrically connected with the conveying belt assembly and the multi-station execution system and used for controlling the action time sequence and cooperative work of all the mechanisms. The device has the functions of integrating mutual inductor installation procedures and forming integrated operation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of mutual inductor manufacturing, and particularly relates to a charging gun mutual inductor mounting device and a mounting method thereof. BACKGROUND

[0002] As a key electrical component in a charging system, the assembly quality of the charging gun mutual inductor directly determines the current detection accuracy, insulation performance and service life of the charging gun.

[0003] CN115570341B discloses an automatic assembly flow line of a current transformer, which mainly comprises a feeding mechanism, an assembly mechanism, a conveying mechanism and a discharging mechanism. The workpiece is driven by the conveying mechanism to circulate between various workstations, and the special mechanism is used to complete the core feeding, coil assembly and other basic processes, so that the automatic circulation operation of the current transformer assembly is realized, the dependence on manual work is reduced to a certain extent, and the production efficiency is improved. However, the flow line does not integrate the executing mechanism corresponding to the special processes such as copper wire pre-fixing, winding and wire cutting, and cannot realize the coordinated connection between the winding and the subsequent tin soldering process, so it is difficult to form a complete charging gun mutual inductor assembly process.

[0004] The application has the function of integrating the mutual inductor mounting process and forming an integrated operation. SUMMARY

[0005] The application aims to provide a charging gun mutual inductor mounting device and a mounting method thereof to solve the technical problems proposed in the background art.

[0006] To achieve the above-mentioned purpose, the specific technical solutions of the application are as follows: A charging gun mutual inductor mounting device, comprising: a rack; a conveyor belt assembly laid on the rack; a circulating tray for loading a workpiece to be assembled, the circulating tray being detachably placed on the conveyor belt assembly and being synchronously conveyed by the conveyor belt assembly along a conveying direction, the circulating tray being integrated with a workpiece groove for positioning and placing a workpiece shell to be assembled, a workpiece clamping mechanism for fixing the workpiece to be assembled, and a copper wire collar for fixing a copper wire of the workpiece to be assembled; a multi-station execution system comprising a plurality of workstations arranged in sequence along the conveying direction of the conveyor belt assembly, each workstation being provided with a corresponding executing component, the workstations including a shell feeding station, a pin inserting station, a magnetic core assembly station, a winding station and a tin soldering station; a controller electrically connected with the conveyor belt assembly and the multi-station execution system respectively, for controlling the action timing and cooperative work of each mechanism.

[0007] Optionally, the shell loading station is located at the most upstream station of the conveying belt assembly, the shell loading station comprises a first mechanical arm and a tray clamping mechanism, the first mechanical arm is fixedly connected above the workbench of the shell loading station, a shell clamping device matched with the size of the shell is connected to the tail end of the first mechanical arm, the tray clamping mechanism comprises a first cylinder push plate, the first cylinder push plate is fixedly connected to one side of the workbench of the shell loading station close to the conveying belt assembly, and abuts against the unlocking end of the workpiece clamping mechanism on the circulating tray during clamping; the first mechanical arm, the first cylinder push plate and the controller are electrically connected, and the controller is configured to: control the extension and retraction action of the first cylinder push plate to unlock or reset the workpiece clamping mechanism, and control the movement of the first mechanical arm, the clamping of the shell clamping device and the placement timing of the shell.

[0008] Optionally, the pin insertion station is located downstream of the shell loading station, the pin insertion station comprises a second mechanical arm, a press-fitting assembly and a tray positioning mechanism, the tray positioning mechanism comprises a second cylinder push plate, the second cylinder push plate is symmetrically fixed to both sides of the workbench of the station, and the tail end of the second mechanical arm is provided with a clamping part, the clamping part is provided with a guide clamping hole matched with the size of the pin, and the inner wall of the guide clamping hole is circumferentially provided with an elastic clamping jaw, the press-fitting assembly is arranged inside the second mechanical arm and comprises a press-fitting cylinder and a press-fitting head, the press-fitting head is matched with the top of the pin, and the second mechanical arm, the second cylinder push plate and the press-fitting cylinder are electrically connected with the controller, and the controller is configured to: control the extension and retraction action of the second cylinder push plate to achieve clamping and positioning of the circulating tray, control the movement of the second mechanical arm and the clamping of the pin, and control the driving of the press-fitting cylinder and the pressing and insertion action timing of the press-fitting head.

[0009] Optionally, the magnetic core assembly station is located downstream of the pin insertion station, the magnetic core assembly station comprises an electromagnetic lever and a workpiece frame electrically connected with the controller, the electromagnetic lever is arranged on one side of the workbench of the station close to the conveying belt assembly, and the workpiece frame is fixed to one side of the workbench of the station and used for placing the magnetic core after primary winding, and the controller is configured to: control the rotation action timing of the electromagnetic lever to achieve blocking and positioning of the circulating tray, and provide stable working conditions for manual loading of the magnetic core.

[0010] Optionally, the winding station is located downstream of the magnetic core assembly station, the winding station comprises a tray pushing mechanism and a winding mechanism, the tray pushing mechanism comprises a plurality of third cylinder push plates, the third cylinder push plates are fixedly connected to the workbench of the winding station, and the pushing directions are all towards the working area of the winding station; the winding mechanism comprises a moving machine table movable along three axes of XYZ, the moving machine table is arranged above the workbench of the winding station, a winding pipe and a wire cutting plate are arranged below the moving machine table, the wire cutting plate is fixedly provided with a wire cutting knife on one side, the wire cutting plate is connected with a thread lifting plate at the bottom end, and the thread lifting plate is provided with a thread lifting protrusion above; the moving machine table, the winding pipe, the wire cutting plate and the thread lifting plate are connected with the controller in signal connection and controlled thereby, and the controller is configured to: control the extension and retraction of the third cylinder push plates to realize clamping and positioning of the circulating tray, control the vertical downward movement of the moving machine table and the cutting action timing of the wire cutting knife, control the movement and lifting of the thread lifting plate, and control the winding action timing of the winding pipe according to the fitting pin track.

[0011] Optionally, the tin soldering station is located downstream of the winding station, the tin soldering station comprises a third mechanical arm, a tin soldering positioning mechanism and a tin frame containing tin liquid; the third mechanical arm is provided with a turnover driving assembly, the tin frame is a groove structure with an open top, and an electric heating device is arranged at the bottom of the tin frame; the tin soldering positioning mechanism is fixed above the workbench of the station and comprises fourth cylinder push plates arranged symmetrically; the end of the third mechanical arm is provided with a clamping jaw matched with the clamping area of the outer periphery of the circulating tray, for stably clamping the circulating tray; the tin soldering positioning mechanism, the electric heating device and the third mechanical arm are electrically connected with the controller, and the controller is configured to: control the extension and retraction of the fourth cylinder push plates to realize positioning of the circulating tray, control the start and stop of the electric heating device to maintain the temperature of the tin liquid in the range of 260±5℃, and control the clamping, movement, turnover and action timing of the third mechanical arm for immersing the workpiece to be assembled into the tin frame.

[0012] Optionally, the controller is provided with a man-machine interaction touch screen, the touch screen is electrically connected with the controller, and the start / stop of the equipment, parameter setting and real-time monitoring of the state of the station can be realized.

[0013] Optionally, the protective shell loading station, the pin inserting station, the winding station and the tin soldering station are all provided with cylinder supporting plates, the cylinder supporting plates are arranged in the rack in a liftable manner and below the conveying belt assembly, and are used for lifting the circulating tray upward to the workbench or resetting the circulating tray to the conveying belt assembly.

[0014] A mounting method of a charging gun mutual inductor based on the mounting device of any one of claims 1-8, comprising the following steps: S1: shell loading: after the conveying belt assembly delivers the flow-through tray to the shell loading station, the controller controls the first mechanical arm to place the shell into the flow-through tray workpiece groove through the shell clamping device; S2: pin insertion: after the conveying belt assembly delivers the flow-through tray to the pin insertion station, the controller controls the second mechanical arm to clamp the pin through the elastic jaw, and drives the press-fit assembly to press the pin into the preset pin groove of the shell; S3: magnetic core assembly: after the conveying belt assembly delivers the flow-through tray to the magnetic core assembly station, the controller controls the electromagnetic lever to block the positioning flow-through tray; manually place the initially wound magnetic core into the shell, and the magnetic core is drawn out to adhere to the pin and is clamped into the copper wire clamp; S4: winding: after the conveying belt assembly delivers the flow-through tray to the winding station, the controller controls the moving machine to complete the winding of the pin through the wire cutting knife and the winding tube; S5: soldering: after the conveying belt assembly delivers the flow-through tray to the soldering station, the controller controls the third mechanical arm to clamp the flow-through tray to flip and invert, so that the copper wire and the pin are synchronously immersed in the tin liquid to complete the soldering.

[0015] The present application has the following beneficial effects: 1. High degree of automation: the first mechanical arm and the second mechanical arm realize automatic loading and insertion of the shell and the pin, greatly reducing the dependence on manual operation; 2. High positioning accuracy: each station is provided with a special positioning assembly, which cooperates with the high-precision drive of the mechanical arm to reduce the pin insertion deviation; 3. Good station coordination: the conveying belt assembly is connected to each station, and the controller uniformly controls the action timing of each mechanism to realize seamless connection of the flow-through, loading, positioning, winding and soldering processes, and stable production rhythm; 4. Adaptation to manual operation: the magnetic core assembly station is provided with an electromagnetic lever, which can accurately block and position the flow-through tray, providing stable operating conditions for manual loading, and taking into account the adaptability of automation and manual assistance; 5. Stable soldering quality: the tin frame is equipped with an electric heating device and a temperature sensor to realize precise control of the tin liquid temperature; 6. Convenient operation: the supporting human-machine interaction touch screen can directly realize equipment start-stop, parameter setting and state monitoring, has low difficulty in starting, and is convenient for large-scale production management. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is a schematic diagram of the overall structure of the present application from another perspective; Figure 3 is an enlarged schematic diagram of part A of the present application; Figure 4 is an enlarged schematic diagram of part B of the present application; Figure 5 Enlarged view of part C of the present application; Figure 6 Enlarged view of part D of the present application; Figure 7 Structure diagram of the winding station of the present application; Figure 8 Structure diagram of the flow tray of the present application; Marked description in the figure: 1, rack; 11, cylinder support plate; 2, conveying belt assembly; 3, flow tray; 31, workpiece groove; 32, workpiece clamping mechanism; 33, copper wire clasp; 4, workpiece to be assembled; 5, shell loading station; 51, first mechanical arm; 52, tray clamping mechanism; 521, first cylinder push plate; 53, shell clamping device; 6, pin insertion station; 61, second mechanical arm; 62, tray positioning mechanism; 621, second cylinder push plate; 63, clamping component; 7, magnetic core assembly station; 71, electromagnetic lever; 8, winding station; 81, tray pushing mechanism; 811, third cylinder push plate; 82, winding mechanism; 821, moving machine table; 822, winding pipe; 823, wire cutting plate; 824, wire lifting plate; 825, wire cutting knife; 826, wire lifting protrusion; 9, soldering station; 91, third mechanical arm; 92, soldering positioning mechanism; 921, fourth cylinder push plate; 93, soldering frame. DETAILED DESCRIPTION

[0017] The following will be described in detail in combination with the accompanying drawings Figures 1-8 The present application will be further described in detail.

[0018] The embodiment of the present application discloses a charging gun mutual inductor mounting device, which comprises a rack 1, a conveying belt assembly 2, a flow tray 3, a multi-station execution system and a controller.

[0019] The rack 1 is used as the basic supporting component of the whole device and is welded by aluminum alloy profiles. The rack 1 is provided with multiple installation beams in the length direction, which are respectively used for fixing the conveying belt assembly 2 and the various functional components of the multi-station execution system.

[0020] The conveying belt assembly 2 is laid on the installation plane on the top of the rack 1 and is used for connecting the various installation stations and realizing the synchronous conveying of the flow tray 3. In the embodiment, the conveying belt assembly 2 comprises two parallel conveying strips, a stepping motor and a transmission roller. The conveying strip is made of wear-resistant polyurethane material and is provided with anti-skid lines on the surface. The spacing between the two conveying belts is adapted to the width of the flow tray 3. The stepping motor drives the transmission roller to rotate through a synchronous belt and drives the conveying strip to run.

[0021] The flow tray 3 is a detachable bearing carrier for loading the workpiece 4 to be assembled and flowing between stations. The flow tray 3 at least integrates a workpiece groove 31, a workpiece clamping mechanism 32, and a copper wire clasp 33.

[0022] The workpiece groove 31 is opened on one side of the top surface of the flow tray 3, and the shape is adapted to the shell of the workpiece 4 to be assembled. The workpiece clamping mechanism 32 is arranged on one side of the flow tray 3 located at the workpiece groove 31. In this embodiment, the workpiece clamping mechanism 32 includes a clamping plate, a fixed plate, a sliding rod, a spring, and an unlocking end. The fixed plate is fixed to the top surface of the flow tray 3 by an internal hexagonal bolt, the clamping plate is slidably connected to the fixed plate by two parallel sliding rods, the spring has two ends abutting the clamping plate and the fixed plate, and is always in a compressed state to provide a continuous clamping force for the clamping plate to automatically clamp the shell after being placed. The unlocking end is an unlocking rod extending outwardly from the clamping plate. When an external mechanism abuts the unlocking rod, it can drive the clamping plate to move away from the workpiece groove 31, thereby unlocking the workpiece clamping mechanism 32. The copper wire clasp 33 is arranged on the top surface of the flow tray 3 away from the workpiece clamping mechanism 32. In this embodiment, the copper wire clasp 33 is a U-shaped elastic clasp for elastically clamping and fixing the copper wire of the workpiece 4 to be assembled.

[0023] The multi-station execution system includes a shell loading station 5, a pin insertion station 6, a magnetic core assembly station 7, a winding station 8, and a tin soldering station 9 arranged in sequence along the conveying direction of the conveyor belt assembly 2. Each station is configured with corresponding execution components to realize automatic or semi-automatic assembly of each process. The shell loading station 5, the pin insertion station 6, the winding station 8, and the tin soldering station 9 are all configured with a uniform structure of a cylinder support plate 11. The specific structure of each station is as follows: 1. The shell loading station 5 is located at the most upstream station of the conveyor belt assembly 2, and is used for realizing automatic loading and positioning of the shell. The station includes a first mechanical arm 51 and a tray clamping mechanism 52.

[0024] The first mechanical arm 51 is a four-axis industrial mechanical arm fixedly connected to the upper side of the workbench of the shell loading station 5 through a mounting seat, and can realize flexible movement in X / Y / Z axis directions.

[0025] The shell clamping device 53 is connected to the end of the first mechanical arm 51. In this embodiment, the shell clamping device 53 adopts a pneumatic jaw structure, and the inner side of the jaw is provided with an arc-shaped groove adapted to the size of the shell.

[0026] The tray clamping mechanism 52 comprises a first cylinder push plate 521 driven by a double-rod cylinder, fixedly connected to the workbench of the shell loading station 5 near the side of the conveying belt assembly 2, with the extension direction perpendicular to the conveying direction of the circulating tray 3, and abutting against the unlocking end of the workpiece clamping mechanism 32 on the circulating tray 3 during operation.

[0027] The first mechanical arm 51 and the first cylinder push plate 521 are electrically connected with the controller, and the action timing is controlled by the controller, and the controller executes the following control program: The first cylinder push plate 521 is controlled to push the workpiece clamping mechanism 32 to release the clamping state of the workpiece groove 31, the first mechanical arm 51 is controlled to move to the corresponding position of the workpiece groove 31 after clamping the shell through the shell clamping device 53, then the first mechanical arm 51 is controlled to place the shell into the workpiece groove 31 of the circulating tray 3, the first cylinder push plate 521 is controlled to reset, and the workpiece clamping mechanism 32 is reset and clamped to the shell.

[0028] 2, the pin insertion station 6 is located downstream of the shell loading station 5, used for realizing automatic insertion of the pin into the shell, comprising a second mechanical arm 61, a press-fitting assembly, and a tray positioning mechanism 62.

[0029] The second mechanical arm 61 is a four-axis industrial mechanical arm, fixedly connected to the mounting beam of the workbench of the station through a mounting seat, and the end of the mechanical arm is provided with a clamping part 63, the clamping part 63 is provided with a guide clamping hole matched with the size of the pin, and the inner wall is uniformly distributed with elastic clamps driven by a built-in micro cylinder, which can realize clamping and releasing of the pin.

[0030] The press-fitting assembly is integrally arranged in the second mechanical arm 61, comprising a press-fitting cylinder and a press-fitting head; the surface of the press-fitting head is provided with a concave structure matched with the top of the pin, so as to avoid damage to the top of the pin during press-fitting.

[0031] The tray positioning mechanism 62 comprises two symmetrically arranged second cylinder push plates 621, which are fixed to the two sides of the workbench of the station near the conveying belt assembly 2, and the extension direction is towards the circulating tray 3.

[0032] The second mechanical arm 61, the second cylinder push plate 621 and the press-fitting cylinder are electrically connected with the controller, and the action is controlled by the controller, and the controller executes the following control program: The second cylinder push plate 621 is controlled to push and clamp the circulating tray 3, and after positioning the tray, the second mechanical arm 61 is controlled to clamp the pin through the guide clamping hole, move to the preset pin position of the shell, control the press-fitting cylinder to drive the press-fitting head to press downward along the axis direction of the guide clamping hole, and insert the pin into the preset pin groove of the shell.

[0033] 3. The magnetic core assembly station 7 is located downstream of the pin insertion station 6, which is used for adapting the manual completion of the magnetic core feeding and the copper wire pre-fixing. The station includes an electromagnetic lever 71 and a workpiece frame.

[0034] The electromagnetic lever 71 is arranged on one side of the station workbench close to the conveying belt assembly 2, adopts an electromagnetic drive structure, and can rotate and extend above the conveying path of the conveying belt assembly 2 during operation to realize the blocking and positioning of the circulating tray 3, thereby providing stable operation conditions for manually loading the magnetic core.

[0035] The workpiece frame is a long rectangular groove structure with an open top, is fixed on one side of the station workbench, and has the magnetic cores that have completed the initial winding neatly stacked inside, facilitating manual taking; The electromagnetic lever 71 is electrically connected with the controller and controlled by the controller in terms of the rotation action timing.

[0036] 4. The winding station 8 is located downstream of the magnetic core assembly station 7 and is used for completing the winding operation of the copper wire at the pin. The station includes a tray pushing mechanism 81 and a winding mechanism 82. The tray pushing mechanism 81 includes a plurality of third cylinder push plates 811. In this embodiment, four third cylinder push plates 811 are arranged, which are fixedly connected to the periphery of the workbench of the winding station 8, and the pushing directions are all towards the working area of the winding station 8. Two of them are arranged along the conveying direction of the conveying belt and can clamp and position the circulating tray 3, and the other two are arranged perpendicular to the conveying direction and are used for pushing the circulating tray towards or away from the working area of the winding station 8.

[0037] In another embodiment of the present application, the third cylinder push plate 811 is provided with three, two of which are arranged perpendicular to the conveying direction and are used for pushing the circulating tray towards or away from the working area of the winding station 8, and the other one is clamped and positioned in cooperation with the positioning plate fixed to the workbench.

[0038] The winding mechanism 82 includes a movable platform 821 that can move along the XYZ three axes. The movable platform 821 is fixed above the workbench of the winding station 8 through a mounting bracket and is driven by a servo motor. A winding pipe 822 and a wire cutting plate 823 are fixedly connected below the movable platform 821 through a flange and a bolt group. A wire cutting knife 825 is fixedly installed on one side of the wire cutting plate 823 through a screw, which is used to cut the excess outgoing section of the copper wire. A thread lifting plate 824 is connected to the bottom end of the wire cutting plate 823 through a pin, and a thread lifting protrusion 826 is integrally formed above the thread lifting plate 824. In this embodiment, the height of the thread lifting protrusion 826 is 3-8 mm, which is used to assist the copper wire in winding and adhering to the pin. The movable platform 821, the winding pipe 822, the wire cutting plate 823 and the thread lifting plate 824 are all signal-connected with the controller and are controlled by the controller in terms of the action timing. The controller executes the following control program: The mobile machine 821 is controlled to move downward in the vertical direction, so that the bobbin 822 is attached to the copper wire of the workpiece 4 to be assembled, and the wire cutting knife 825 is controlled to cut the excess lead section of the copper wire; After the thread lifting plate 824 is controlled to move to the lower side of the copper wire, the bobbin 822 is driven to complete the winding operation along the preset track, and the thread lifting plate 824 is controlled to be lifted upward to lift the copper wire, thereby assisting the winding operation.

[0039] 5、The tin soldering station 9 is located downstream of the winding station 8, and is used for tin soldering and fixing the copper wire and the pin. The station includes a third mechanical arm 91, a tin soldering positioning mechanism 92, and a tin frame 93 filled with tin liquid.

[0040] In the embodiment, the third mechanical arm 91 is a four-axis industrial mechanical arm, which is fixedly connected to the mounting beam of the station workbench through a mounting seat; the third mechanical arm 91 is provided with a turnover driving assembly, and the tail end of the third mechanical arm 91 is provided with a clamping jaw matched with the clamping area of the outer periphery of the turnover tray 3. The inner side of the clamping jaw is provided with a rubber non-slip pad, so that the turnover tray 3 can be stably clamped.

[0041] The tin soldering positioning mechanism 92 is fixed above the station workbench, and includes a fourth cylinder push plate 921 symmetrically arranged, which can assist in positioning the turnover tray 3, so as to ensure the accuracy of clamping by the third mechanical arm 91.

[0042] The tin frame 93 is a rectangular cuboid slot structure with an open top, and is made of stainless steel and filled with tin liquid. The bottom of the tin frame 93 is provided with an electric heating device, which is a stainless steel heating pipe in the embodiment, and can heat and keep the tin liquid, so as to maintain the temperature of the tin liquid within the range of 260±5℃. In the embodiment, the side wall of the tin frame 93 is provided with a temperature sensor, which is a K-type thermocouple, and is used for real-time monitoring of the temperature of the tin liquid and feedback to the controller.

[0043] The electric heating device and the third mechanical arm 91 are electrically connected with the controller, and the action and temperature are controlled by the controller, and the controller executes the following control program: After the fourth cylinder push plate 921 pushes and positions the turnover tray 3, the third mechanical arm 91 clamps the turnover tray 3, and after being turned over and inverted, the copper wire and the pin of the workpiece 4 to be assembled on the turnover tray 3 are synchronously immersed in the tin liquid, thereby completing the tin soldering of the copper wire and the pin.

[0044] The controller is installed in the electrical control cabinet on one side of the rack 1. The controller is electrically connected with the stepping motor of the conveying belt assembly 2, the cylinders of the multi-station execution system, the mechanical arm, the electric heating device, the temperature sensor and the like, respectively, for receiving the signals of each component and controlling the action timing and cooperative work thereof. In the embodiment, the preset interval timing of the controller is 0.5s. The controller is configured with a human-computer interaction touch screen which is electrically connected with the controller, and the human-computer interaction touch screen can realize the equipment start / stop, parameter setting (such as conveying speed, winding turns, tin liquid temperature) and real-time monitoring of station state, facilitating the equipment debugging and operation management of the operator.

[0045] The charging gun mutual inductor installation method based on the installation device comprises the following steps: S1: shell loading and positioning: The controller controls the conveying belt assembly 2 to start, and the empty load flow tray 3 is conveyed to the shell loading station 5. When the flow tray 3 reaches the preset position, the cylinder supporting plate 11 of the station is controlled to stretch upwards and lift the flow tray 3 to the height level with the workbench. Then the controller controls the first cylinder push plate 521 to stretch out and abut against the unlocking end of the workpiece clamping mechanism 32 on the flow tray 3, drives the clamping plate to move away from the workpiece groove 31, unlocks the workpiece clamping mechanism 32, and clamps the flow tray 3 at the same time. The first mechanical arm 51 is controlled to move to the shell storage area, the shell is clamped by the shell clamp 53, and then it is moved above the workpiece groove 31 of the flow tray 3 to accurately place the shell into the workpiece groove 31. After the placement is completed, the controller controls the first cylinder push plate 521 to retract synchronously, the workpiece clamping mechanism 32 is reset under the action of the spring, the clamping plate automatically clamps the shell, and the positioning and fixing of the shell are realized. After the operation is completed, the controller controls the cylinder supporting plate 11 to retract downwards, and the flow tray 3 carrying the shell is placed back on the conveying belt assembly 2. The conveying belt assembly 2 conveys the flow tray 3 carrying the shell to the pin insertion station 6.

[0046] S2: pin insertion: After the flow tray 3 reaches the pin insertion station 6, the cylinder supporting plate 11 of the station is controlled to stretch upwards and lift the flow tray 3 to the height level with the workbench. The controller controls the two second cylinder push plates 621 to stretch out synchronously and clamp the flow tray 3 from both sides to realize accurate positioning. The second mechanical arm 61 is controlled to move to the pin storage area, the elastic clamping jaw in the guide clamping hole is clamped to clamp the pin, and then it is moved above the workpiece groove 31 of the flow tray 3 to make the pin align with the preset pin groove of the shell. The controller drives the press-fitting cylinder of the press-fitting assembly to act, drives the press-fitting head to move downwards, accurately press-fits the pin into the pin groove of the shell. After the operation is completed, the controller controls the elastic clamping jaw to release the pin, the second mechanical arm 61 is reset, and the second cylinder push plate 621 is retracted synchronously. The cylinder supporting plate 11 is controlled to retract downwards, the flow tray 3 is placed back on the conveying belt assembly 2, and the flow tray 3 is conveyed to the magnetic core assembly station 7.

[0047] S3: Magnetic core loading and copper wire pre-fixing: After the flow tray 3 reaches the magnetic core assembly station 7, the controller controls the electromagnetic lever 71 to extend upwards above the conveying path, blocking the flow tray 3 from continuing to move, thereby positioning the flow tray 3; the operator takes out the magnetic core that has completed the initial winding from the workpiece frame, places the magnetic core into the shell, and then aligns the copper wire leading out of the magnetic core with the outer wall of each pin and clamps the copper wire into the copper wire clamping ring 33 of the flow tray 3. The copper wire clamping ring 33 clamps the copper wire by elastic force. After the manual operation is completed, the conveyor belt assembly 2 continues to convey the flow tray 3 to the winding station 8.

[0048] S4: Winding: After the flow tray 3 reaches the winding station 8, the controller controls the conveyor belt assembly 2 to stop; the cylinder support plate 11 of the station is controlled to extend upwards to lift the flow tray 3 to a height level with the workbench; the controller controls the third cylinder push plate 811 to extend to clamp and position the flow tray 3 and push it to the center position of the winding work area; then the controller controls the moving table 821 to move the winding pipe 822 and the wire cutting plate 823 downwards to align the winding pipe 822 with the copper wire on the pin, and controls the wire cutting knife 825 to cut off the excess leading section of the copper wire; the controller controls the wire lifting plate 824 to move towards the copper wire, and the wire lifting protrusion 826 is inserted below the copper wire; the controller controls the moving table 821 to rotate the winding pipe 822 along a preset trajectory, and controls the wire lifting plate 824 to lift upwards to assist the copper wire in winding and aligning with the pin, thereby completing the re-winding operation; after winding is completed, the controller controls the wire lifting plate 824 to reset, the wire cutting knife 825 to retract, and the third cylinder push plate 811 to push the flow tray 3 to the loading position of the cylinder support plate 11 and then reset; the controller controls the cylinder support plate 11 to retract downwards to place the flow tray 3 back on the conveyor belt assembly 2, and conveys the flow tray 3 to the soldering station 9.

[0049] S5: Soldering: After the flow turnover tray 3 reaches the soldering station 9, the cylinder tray plate 11 controlled by the station extends upward to lift the flow turnover tray 3 to the height level with the workbench; the controller controls the two fourth cylinder push plates 921 of the soldering positioning mechanism 92 to extend synchronously to clamp and position the flow turnover tray 3, and then controls the fourth cylinder push plates 921 to retract; at the same time, the electric heating device is controlled to start to heat and maintain the tin liquid in the tin frame 93 at 260±5℃; the third mechanical arm 91 is controlled to move above the flow turnover tray 3, stably clamps the flow turnover tray 3 through the clamping jaw, turns over the flow turnover tray 3 through the turnover driving assembly, controls the third mechanical arm 91 to move the flow turnover tray 3 above the tin frame 93 and then moves downward, synchronously immerses the copper wire and the pin of the to-be-assembled workpiece 4 into the tin liquid in the tin frame 93, maintains for 2.5s to complete the soldering; after the soldering is completed, the third mechanical arm 91 drives the flow turnover tray 3 to move upward, separates from the tin liquid and moves above the workbench; the third mechanical arm 91 places the flow turnover tray 3 on the soldering positioning mechanism 92 of the workbench; the third mechanical arm 91 is controlled to reset, and the cylinder tray plate 11 is controlled to retract downward to place the flow turnover tray 3 on the conveying belt assembly 2, conveys the flow turnover tray 3 on which the soldering is completed to the discharging station, and completes the entire installation process.

[0050] It is measured that the device can complete the assembly of one mutual inductor per minute, the pin insertion deviation is less than or equal to 0.1mm, the winding positioning accuracy and the soldering qualified rate are both 98%, and the device completely meets the demand of large-scale production.

[0051] The above only describes the preferred embodiments of the present application and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application is included in the protection scope of the present application.

Claims

1. An installation device for a charging gun current transformer, characterized in that, include: Rack (1); Conveyor belt assembly (2) is laid on the frame (1); A transfer tray (3) is used to load the workpiece (4) to be assembled. The transfer tray (3) is detachably placed on the conveyor belt assembly (2) and synchronously conveyed by the conveyor belt assembly (2) along the conveying direction. The transfer tray (3) integrates a workpiece groove (31) for positioning and placing the protective shell of the workpiece (4) to be assembled, a workpiece clamping mechanism (32) for fixing the workpiece (4) to be assembled, and a copper wire retainer (33) for fixing the copper wire of the workpiece (4) to be assembled. The multi-station execution system includes multiple work stations arranged sequentially along the conveying direction of the conveyor belt assembly (2), each work station is equipped with a corresponding execution component, and the work stations include a housing loading station (5), a pin insertion station (6), a magnetic core assembly station (7), a winding station (8), and a soldering station (9). The controller is electrically connected to the conveyor belt assembly (2) and the multi-station execution system, respectively, and is used to control the timing of the actions of each mechanism and their coordinated work.

2. The installation device according to claim 1, characterized in that, The shell loading station (5) is located at the upstream station of the conveyor belt assembly (2). The shell loading station (5) includes a first robotic arm (51) and a pallet clamping mechanism (52). The first robotic arm (51) is fixedly connected to the workbench of the shell loading station (5). The end of the first robotic arm (51) is connected to a shell clamping device (53) adapted to the size of the shell. The pallet clamping mechanism (52) includes a first cylinder push plate (521). The first cylinder push plate (521) is fixedly connected to the side of the workbench of the shell loading station (5) near the conveyor belt assembly (2). When clamping, it abuts against the unlocking end of the workpiece clamping mechanism (32) on the transfer pallet (3). The first robotic arm (51) and the first cylinder push plate (521) are electrically connected to the controller. The controller is configured as follows: Control the extension and retraction of the first cylinder push plate (521) to unlock or reset the workpiece clamping mechanism (32), and control the timing of the movement of the first robotic arm (51), the clamping of the protective shell clamp (53), and the placement of the protective shell.

3. The installation device according to claim 1, characterized in that, The pin insertion station (6) is located downstream of the housing loading station (5). The pin insertion station (6) includes a second robotic arm (61), a pressing assembly, and a pallet positioning mechanism (62). The pallet positioning mechanism (62) includes a second cylinder push plate (621), which is symmetrically fixed on both sides of the workbench. The end of the second robotic arm (61) is provided with a gripping component (63), which has a guide gripping hole adapted to the pin size. The inner wall of the guide gripping hole is provided with elastic grippers. The pressing assembly is located inside the second robotic arm (61) and includes a pressing cylinder and a pressing head. The pressing head is adapted to the top of the pin. The second robotic arm (61), the second cylinder push plate (621), and the pressing cylinder are electrically connected to the controller. The controller is configured as follows: Control the extension and retraction of the second cylinder push plate (621) to achieve clamping and positioning of the transfer tray (3), control the movement of the second robotic arm (61) and the pin clamping action, and control the timing of the driving of the pressing cylinder and the pressing head's pressure insertion action.

4. The installation device according to claim 1, characterized in that, The magnetic core assembly station (7) is located downstream of the pin insertion station (6). The magnetic core assembly station (7) includes an electromagnetic lever (71) electrically connected to the controller and a workpiece frame. The electromagnetic lever (71) is located on the side of the workbench near the conveyor belt assembly (2). The workpiece frame is fixed to one side of the workbench and is used to place the magnetic core that has been initially wound. The controller is configured as follows: The timing of the rotation of the electromagnetic lever (71) is controlled to block and position the transfer tray (3), providing stable working conditions for manual insertion of the magnetic core.

5. The installation device according to claim 1, characterized in that, The winding station (8) is located downstream of the core assembly station (7). The winding station (8) includes a tray pushing mechanism (81) and a winding mechanism (82). The tray pushing mechanism (81) includes several third cylinder push plates (811), which are fixedly connected to the workbench of the winding station (8), and the pushing direction is towards the working area of ​​the winding station (8). The winding mechanism (82) includes a moving machine (821) that can move along the XYZ three axes. The moving machine (821) is set on the winding station. Above the workbench of the wire station (8), below the mobile machine (821) are a winding tube (822) and a cutting plate (823). A cutting knife (825) is fixedly installed on one side of the cutting plate (823), and a take-up plate (824) is connected to the bottom of the cutting plate (823). A take-up protrusion (826) is provided above the take-up plate (824). The mobile machine (821), winding tube (822), cutting plate (823) and take-up plate (824) are all connected to and controlled by the controller. The controller is configured as follows: Control the extension and retraction of the third cylinder push plate (811) to achieve clamping and positioning of the transfer tray (3), control the vertical downward movement of the moving machine (821) and the cutting action timing of the wire cutter (825), control the movement and lifting action of the wire take-up plate (824), and control the winding action timing of the winding tube (822) according to the pin trajectory.

6. The installation device according to claim 1, characterized in that, The soldering station (9) is located downstream of the winding station (8). The soldering station (9) includes a third robotic arm (91), a soldering positioning mechanism (92), and a solder frame (93) containing molten solder. The third robotic arm (91) is equipped with a flipping drive assembly. The solder frame (93) is a top-opening groove structure with an electric heating device at its bottom. The soldering positioning mechanism (92) is fixed above the workbench of the station and includes symmetrically arranged fourth cylinder push plates (921). The end of the third robotic arm (91) is equipped with a clamping claw adapted to the outer periphery clamping area of ​​the transfer tray (3) for stably clamping the transfer tray (3). The soldering positioning mechanism (92), the electric heating device, and the third robotic arm (91) are electrically connected to a controller, which is configured as follows: Control the extension and retraction of the fourth cylinder push plate (921) to achieve the positioning of the transfer tray (3), control the start and stop of the electric heating device to maintain the temperature of the molten solder in the range of 260±5℃, and control the timing of the clamping, moving, flipping and immersion of the workpiece to be assembled into the molten solder frame (93) of the third robotic arm (91).

7. The installation device according to claim 1, characterized in that, The controller is equipped with a human-machine interactive touch screen, which is electrically connected to the controller and can realize equipment start / stop, parameter setting and real-time monitoring of workstation status.

8. The installation device according to claim 1, characterized in that, The shell loading station (5), pin insertion station (6), winding station (8) and soldering station (9) are all equipped with cylinder support plates (11). The cylinder support plates (11) can be lifted and lowered on the frame (1) and located below the conveyor belt assembly (2). They are used to lift the transfer tray (3) upward to the worktable or to reset the transfer tray (3) downward to put it back into the conveyor belt assembly (2).

9. A method for installing a charging gun current transformer, based on the installation device according to any one of claims 1-8, characterized in that, Includes the following steps: S1: Shell loading: After the conveyor belt assembly transports the transfer pallet to the shell loading station, the controller controls the first robotic arm to place the shell into the workpiece slot of the transfer pallet through the shell clamp. S2: Pin Insertion: After the conveyor belt assembly transports the transfer tray to the pin insertion station, the controller controls the second robotic arm to clamp the pin with the elastic gripper and drives the pressing assembly to press the pin into the preset pin slot of the protective shell. S3: Core Assembly: After the conveyor belt assembly transports the transfer tray to the core assembly station, the controller controls the electromagnetic lever to block and position the transfer tray; the manual person puts the initially wound core into the protective shell, leads out the copper wire from the core to fit the pin and snaps it into the copper wire retainer. S4: Winding: After the conveyor belt assembly transports the transfer tray to the winding station, the controller controls the moving machine to complete the winding of the pins through the wire cutter and winding tube; S5: Soldering: After the conveyor belt assembly transports the transfer tray to the soldering station, the controller controls the third robotic arm to hold the transfer tray and flip it upside down, so that the copper wire and the pin are simultaneously immersed in the molten solder to complete the soldering.

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