An assembly method for a power supply inner core

Abstract

The present invention belongs to the field of power supply equipment production, and discloses an assembly method for a power supply inner core, including the steps of: S1, assembling the contact component: completely locking the insertion piece and the copper joint through screws to form the contact component; S2, assembling the inner core: respectively arranging the three assembled contact components in the cavity of the insulating housing, then installing and welding the insulating cover body, and adjusting and aligning the interface of the copper joint with the electrode opening of the insulating cover body. The present invention effectively avoids the multi-objective collaborative control in the assembly process, making the manual assembly more convenient. Moreover, the present invention also provides a basis for the application of the automation system. Because of its specific assembly sequence and relatively simplified operation logic, it is more easily adopted by the automation system, thereby improving production efficiency and ensuring the yield rate.

Description

Technical Field

[0001] The invention relates to the technical field of power supply production equipment, and in particular to an assembling method of a power supply core. Background Art

[0002] The power connector is generally composed of a shell and an inner core. The shell protects the inner core. The inner core contains a contact component and an insulating component. The contact component is used to conduct current, and the insulating component is used to isolate the contact component from the shell to avoid short circuit.

[0003] The contact assembly is the core part of the inner core, which is usually made of metal material (such as copper or copper alloy). The shape and design of the contact assembly are determined according to the specific application and current requirements. The inner core involved in the present invention has three contact assemblies, which are used to connect the live wire, the ground wire and the neutral wire respectively. Each contact assembly includes a copper connector and a plug-in sheet. The copper connector has an interface that runs through it. The side wall of the interface has a screw hole that is perpendicular to the opening direction of the interface. One end of the plug-in sheet is a conductive clip, and the other end is a plug-in section. The plug-in section is inserted into the interface of the copper connector. There are also screws that cooperate with the insulating assembly to lock the copper connector and the plug-in sheet that are plugged into each other.

[0004] The insulating assembly is made of plastic or rubber, is roughly cylindrical, and consists of an insulating shell with an opening on the top surface and an insulating cover. The insulating shell is divided into three cavities along the tangent direction, and each contact assembly is arranged in a corresponding cavity. The side wall of the insulating shell is provided with a screw channel for screwing in the screws. The insulating cover covers the top opening of the insulating shell, and has three electrode openings for electrode connection, and the three electrode openings correspond to the interfaces of the three copper joints respectively.

[0005] The existing assembly method of the inner core has the following steps: S1, manually clamp the plug and the copper connector with pliers, and install the insulating shell from the top opening of the insulating shell (3 times in total); S2, manually screw the screws into the copper connector of the installed insulating shell to lock the copper connector and the plug (3 times in total), and the screwing degree of the screws needs to be controlled to ensure that the interface of the copper connector is aligned with the electrode opening of the insulating cover to be installed next; S3, manually use an ultrasonic machine to weld the insulating cover and the insulating shell.

[0006] The existing assembly method has the problem of low assembly efficiency, with a production capacity of only 104 PCS / H. Moreover, the existing method is only suitable for manual assembly. If the automated system is configured directly according to the existing steps, the equipment complexity will be high, and the yield will be lower than manual operation. Manual operation can collaboratively control multiple targets (copper connectors, plugs, screws, and insulating shells), which is difficult to achieve with an automated system. It cannot judge the screw locking depth by feel like manual operation, and cannot determine the degree of alignment between the interface and the electrode opening by vision. In order to confirm that the interface and the electrode opening are aligned, the cost of the sensor often surges. Summary of the Invention

[0007] The first technical problem to be solved by the present invention is to propose an assembly method for the power supply inner core that can be adopted by both manual and automated systems in view of the above technical status quo.

[0008] The second technical problem to be solved by the present invention is to propose an assembly method for the power supply inner core that can accurately select the orientations of the insulating cover and the insulating housing in view of the above technical status quo.

[0009] The technical solution adopted by the present invention to solve the first technical problem is as follows: an assembly method for a power supply inner core, characterized by comprising the steps:

[0010] S1. Assemble the contact component: completely lock the insert piece and the copper joint with screws to form a contact component;

[0011] S2. Assemble the inner core: respectively place the three assembled contact components in the accommodation cavities of the insulating housing, then install and weld the insulating cover, and adjust and align the interfaces of the copper joints with the electrode openings of the insulating cover.

[0012] Specifically, the step S1 includes sub-steps:

[0013] S1.1. Feed the copper joint: Prepare the copper joint and place it in the first carrier for fixation;

[0014] S1.2. Install the insert piece: Insert the insertion part of the insert piece into the socket of the copper joint.

[0015] In order to improve the consistency of the standardized contact components and prevent relative displacement between the copper joint and the insert piece during installation, as a preference, the step S1 further includes sub-steps:

[0016] S1.3. Lock the screw: Pre-lock the screw into the screw hole opened on the side of the copper joint, and then lock the inserted insert piece and the copper joint.

[0017] In order to make the contact components fill into the three accommodation cavities of each insulating housing, align the electrode openings of the insulating cover with the accommodation cavities of the insulating housing, rather than with the partition plates separating the accommodation cavities. Therefore, as a solution to the second technical problem, the step S2 includes sub-steps:

[0018] S2.1. Feed the insulating housing: Prepare the insulating housing, rotate it along its own axis to the first specified direction, and then place it upright in the second carrier for fixation;

[0019] S2.2. Feeding of the Insulating Cover: Prepare the insulating cover, rotate it along its own axis to the second specified direction, so that when the insulating cover is subsequently translated above the insulating housing for installation, the first specified direction and the second specified direction can ensure that the three electrode openings of the insulating cover are aligned with the three cavities of the insulating housing one by one.

[0020] For the convenience of determining alignment, preferably, when performing step S2.1, find or set a protruding marking point on the side of the insulating housing, and rotate the insulating housing so that its marking point faces the first specified direction; when performing step S2.2, find or set a protruding marking point on the side of the insulating cover, and rotate the insulating cover so that its marking point faces the second specified direction, so that the three electrode openings of the insulating cover are aligned with the three cavities of the insulating housing one by one.

[0021] Further, when performing step S2.1, place the insulating housing on a uniformly rotating rotary platform, irradiate the insulating housing from the side with a reflective optical fiber, and align its optical axis with the marking point of the insulating housing. Take the time when the reflective optical fiber first detects the detection bump as the starting time to eliminate the influence caused by different initial orientations of the marking point. Then, according to the time difference between the reflective optical fiber detecting the marking point twice, the time required for the insulating housing to rotate one circle can be determined, and thus the time required to rotate to the first specified direction can be calculated; when performing step S2.2, place the insulating cover on a uniformly rotating rotary platform, irradiate the insulating cover from the side with a reflective optical fiber, and align its optical axis with the marking point of the insulating cover. Take the time when the reflective optical fiber first detects the detection bump as the starting time to eliminate the influence caused by different initial orientations of the marking point. Then, according to the time difference between the reflective optical fiber detecting the marking point twice, the time required for the insulating cover to rotate one circle can be determined, and thus the time required to rotate to the second specified direction can be calculated. Using this method can make the operation more intuitive and simple, and it can also be realized without introducing a vision system when transferred to an automated device.

[0022] Further, when performing steps S2.1 and S2.2, control the rotary platform and the reflective optical fiber through a control system. Configure the control system to calculate the rotation angle according to the time interval between two adjacent detections of the marking point, and control the rotary platform to stop rotating, so as to rotate the insulating housing and the insulating cover to the specified direction.

[0023] Specifically, step S2 further includes sub-steps:

[0024] S2.3. Installing the Contact Assembly: Take out the contact assembly assembled in step S1 from the first carrier, and fill the three contact assemblies into the three independent cavities of the insulating housing respectively;

[0025] S2.4. Installing the Insulating Cover: Translate the insulating cover, pre-install it above the insulating housing, and then fix the two by welding.

[0026] Specifically, the step S2 further includes sub-steps:

[0027] S2.5, Unscrew the screw: Retract the screw of the contact component through the screw channel opened on the side of the insulating housing, so that the screw is retracted to align the interface of the copper joint with the electrode opening of the insulating cover. The existing method is to screw the screw directly to the designated position when all components are loosely assembled, while this solution improves it to retract from the locked standardized state to the designated position, making the operation more convenient and the yield higher.

[0028] Preferably, the step 2 further includes sub-steps:

[0029] S2.6, Quality inspection: Detect whether the screw is retracted in place, and sort out good products and defective products.

[0030] Compared with the prior art, the present invention assembles the insert piece, the screw and the copper joint into a standardized contact component, and then installs the contact component with the insulating housing and the insulating cover. After the installation is completed, the interface is adjusted to align with the electrode opening. Compared with the one-step assembly in the existing method, the present invention effectively avoids the multi-objective collaborative control in the assembly process and makes the manual assembly more convenient. Moreover, the present invention also provides a basis for the application of the automated system. Because of its specific assembly sequence and relatively simplified operation logic, it is more easily adopted by the automated system, thereby improving the production efficiency and ensuring the yield. Brief Description of the Drawings

[0031] Figure 1 is a schematic flow chart of an embodiment of the present invention;

[0032] Figure 2 is a schematic flow chart of the sub-steps of step S1 of an embodiment of the present invention;

[0033] Figure 3 is a schematic flow chart of the sub-steps of step S2 of an embodiment of the present invention. Detailed Embodiment

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0035] As Figures 1 to 3 shown, it is a preferred embodiment of an assembly method for the inner core of a power supply according to the present invention.

[0036] The method of this embodiment includes step S1 of assembling the contact component and step S2 of assembling the inner core, as Figure 1 shown.

[0037] S1 Assemble the contact component, specifically, lock the insert piece and the copper joint completely through the screw to form the contact component. As Figure 2As shown, this step is divided into three sub-steps:

[0038] S1.1 Copper joint loading: Prepare the copper joint and fix it in the first carrier.

[0039] S1.2 Insert installation: Insert the insertion part of the insert into the socket of the copper joint.

[0040] S1.3 Screw tightening: Pre-lock the screw into the screw hole opened on the side of the copper joint, and then lock the inserted insert and the copper joint tightly. Improve the consistency of the standardized contact component and prevent relative displacement between the copper joint and the insert during installation.

[0041] S2 Assemble the inner core. Specifically, set the three assembled contact components in the cavity of the insulating housing respectively, then install and weld the insulating cover, and align the interface of the copper joint with the electrode opening of the insulating cover. In this step, special attention should be paid to aligning the electrode opening of the insulating cover with the cavity of the insulating housing, rather than with the partition separating the cavity. As Figure 3 shown, S2 is divided into six sub-steps:

[0042] S2.1 Insulating housing loading: Prepare the insulating housing, rotate it along its own axis to the first specified direction, and then stand it in the second carrier for fixation; To facilitate determining alignment, in this embodiment, find or set a protruding marking point on the side of the insulating housing, and rotate the insulating housing to face its marking point to the first specified direction; Specifically, the operator or automated machinery places the insulating housing on a rotating platform that rotates at a constant speed, irradiates the insulating housing from the side with a reflective optical fiber, and aligns its optical axis with the marking point of the insulating housing. Take the time when the reflective optical fiber first detects the detection bump as the starting time to eliminate the influence caused by different initial orientations of the marking point, and then determine the time required for the insulating housing to rotate one circle based on the time difference between the reflective optical fiber detecting the marking point twice. From this, calculate the time required to rotate to the first specified direction; Control the rotating platform and the reflective optical fiber through the control system, and configure the control system to calculate the rotation angle based on the time interval between adjacent detections of the marking point and control the rotating platform to stop rotating, so as to rotate the insulating housing to the first specified direction;

[0043] S2.2. Feeding the insulating cover: Prepare the insulating cover and rotate it along its own axis to the second specified direction so that when the insulating cover is subsequently translated above the insulating housing for installation, the first specified direction and the second specified direction can ensure that the three electrode openings of the insulating cover are aligned with the three cavities of the insulating housing one by one. In this embodiment, a protruding marking point is found or set on the side of the insulating cover, and the insulating cover is rotated so that its marking point faces the second specified direction, thereby aligning the three electrode openings of the insulating cover with the three cavities of the insulating housing one by one. Specifically, an operator or automated machinery places the insulating cover on a rotating platform that rotates at a constant speed. The insulating cover is irradiated from the side by a reflective optical fiber, and its optical axis is aligned with the marking point of the insulating cover. The time when the reflective optical fiber first detects the detection bump is used as the starting time to eliminate the influence caused by the different initial orientations of the marking points. Then, based on the time difference between the reflective optical fiber detecting the marking point twice, the time required for the insulating cover to rotate one circle can be determined, and thus the time required to rotate to the second specified direction can be calculated. The rotating platform and the reflective optical fiber are controlled by a control system, and the control system is configured to calculate the rotation angle based on the time interval between two adjacent detections of the marking point and control the rotating platform to stop rotating, thereby rotating the insulating cover to the second specified direction;

[0044] S2.3. Installing the contact assembly: Take out the contact assembly assembled in step S1 from the first carrier and fill the three independent cavities of the insulating housing with the three contact assemblies respectively;

[0045] S2.4. Installing the insulating cover: Translate the insulating cover and pre-install it above the insulating housing, and then fix the two by welding;

[0046] S2.5. Retracting the screw: Retract the screw of the contact assembly through the screw channel opened on the side of the insulating housing so that the screw is retracted to align the interface of the copper joint with the electrode opening of the insulating cover. The existing method is to screw the screw directly to the specified position when all components are loosely assembled, while this solution improves it to retract from the locked standard state to the specified position, making the operation more convenient and the yield higher;

[0047] S2.6. Quality inspection: Detect whether the screw is retracted in place and sort the good products and defective products.

Claims

1. A method for assembling a power supply inner core, characterized in that, Including the steps: S1. Assemble the contact component: Completely lock the insert piece and the copper joint with screws to form the contact component; S2. Assemble the inner core: Respectively place the three assembled contact components in the accommodating cavities of the insulating housing, then install and weld the insulating cover body, and align the interfaces of the copper joints with the electrode openings of the insulating cover body; The step S2 includes sub-steps: S2.

1. Loading the insulating housing: Prepare the insulating housing, rotate it along its own axis to the first specified direction, and then stand it upright in the second carrier for fixation; S2.

2. Loading the insulating cover body: Prepare the insulating cover body, rotate it along its own axis to the second specified direction, so that when the insulating cover body is subsequently translated above the insulating housing for installation, the first specified direction and the second specified direction can ensure that the three electrode openings of the insulating cover body are aligned with the three accommodating cavities of the insulating housing one by one; When performing the step S2.1, find or set a protruding marking point on the side of the insulating housing, and rotate the insulating housing to face its marking point to the first specified direction; When performing the step S2.2, find or set a protruding marking point on the side of the insulating cover body, and rotate the insulating cover body to face its marking point to the second specified direction, so that the three electrode openings of the insulating cover body are aligned with the three accommodating cavities of the insulating housing one by one; When performing the step S2.1, place the insulating housing on a rotating platform that rotates at a constant speed, irradiate the insulating housing from the side with a reflective optical fiber, and align its optical axis with the marking point of the insulating housing. Take the time when the reflective optical fiber first detects the detection bump as the starting time to eliminate the influence caused by different initial orientations of the marking point. Then, according to the time difference between the reflective optical fiber detecting the marking point twice, the time required for the insulating housing to rotate one circle can be determined, and thus the time required to rotate to the first specified direction can be calculated; When performing the step S2.2, place the insulating cover body on a rotating platform that rotates at a constant speed, irradiate the insulating cover body from the side with a reflective optical fiber, and align its optical axis with the marking point of the insulating cover body. Take the time when the reflective optical fiber first detects the detection bump as the starting time to eliminate the influence caused by different initial orientations of the marking point. Then, according to the time difference between the reflective optical fiber detecting the marking point twice, the time required for the insulating cover body to rotate one circle can be determined, and thus the time required to rotate to the second specified direction can be calculated; When performing the steps S2.1 and S2.2, control the rotating platform and the reflective optical fiber through the control system. Configure the control system to calculate the rotation angle according to the time interval between two adjacent detections of the marking point, and control the rotating platform to stop rotating, so as to rotate the insulating housing and the insulating cover body to the specified direction.

2. The assembly method according to claim 1, characterized in that The step S1 includes sub-steps: S1.

1. Loading the copper joint: Prepare the copper joint and place it in the first carrier for fixation; S1.

2. Installing the insert piece: Insert the insertion part of the insert piece into the socket of the copper joint.

3. The assembly method according to claim 2, characterized in that, The step S1 also includes sub-steps: S1.

3. Tightening the screw: Pre-lock the screw into the screw hole opened on the side of the copper joint, and then tighten the inserted insert piece and the copper joint.

4. The assembly method according to claim 3, characterized in that The step S2 also includes sub-steps: S2.

3. Install the contact assembly: Take out the contact assembly assembled in step S1 from the first vehicle, and fill the three contact assemblies into the three independent cavities of the insulating housing respectively; S2.

4. Install the insulating cover: Translate the insulating cover and pre-install it above the insulating housing, and then fix the two by welding.

5. The assembly method according to claim 4, wherein, The step S2 further includes sub-steps: S2.

5. Unscrew the screw: Retract the screw of the contact assembly through the screw channel opened on the side of the insulating housing, so that the screw is retracted until the interface of the copper joint is aligned with the electrode opening of the insulating cover.

6. The assembly method according to claim 5, characterized in that, The step 2 further includes sub-steps: S2.

6. Quality inspection: Check whether the screw is retracted in place, and sort out the good products and defective products.

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