Method for assembling power supply inner core

Abstract

The invention belongs to the field of power supply equipment production, and discloses a power supply inner core assembling method, which comprises the following steps: S1, assembling a contact assembly: completely locking an insertion sheet and a copper joint through a screw to form the contact assembly; and S2, assembling the inner core: respectively arranging the three assembled contact assemblies in a containing cavity of an insulating shell, then installing and welding an insulating cover body, and adjusting and aligning the interface of the copper joint and the electrode opening of the insulating cover body. According to the method, multi-target cooperative control in the assembling process is effectively avoided, and manual assembling is simpler and more convenient. Moreover, the invention also provides a basis for the application of an automatic system, and due to the specific assembly sequence and relatively simplified operation logic, the method can be more easily adopted by the automatic system, so that the production efficiency can be improved, and the yield can be ensured.

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 a method for assembling a power core that can be used by both manual and automatic systems in view of the above technical status.

[0008] The second technical problem to be solved by the present invention is to propose a method for assembling a power supply core that can accurately select the orientation of the insulating cover and the insulating shell in response to the above-mentioned technical status quo.

[0009] The technical solution adopted by the present invention to solve the first technical problem is: a method for assembling a power core, characterized in that it comprises the steps of: S1. Assemble the contact assembly: completely tighten the insert and the copper joint with screws to form a contact assembly; S2. Assemble the inner core: respectively place the three assembled contact components in the cavities of the insulating shell, then install and weld the insulating cover, and align the interface of the copper joint with the electrode opening of the insulating cover.

[0010] Specifically, the step S1 includes the following sub-steps: S1.1. Copper joint loading: prepare the copper joint and put it into the first carrier for fixing; S1.2. Install the plug: insert the plug-in part into the socket of the copper joint.

[0011] In order to improve the consistency of the standardized contact assembly and prevent relative displacement between the copper joint and the insert during the installation process, preferably, the step S1 further includes the following sub-steps: S1.3, Locking screw: The screw is pre-locked into the screw hole opened on the side of the copper joint, and then the plug-in piece and the copper joint are locked.

[0012] In order to fill the contact assembly into the three cavities of each insulating housing, the electrode opening of the insulating cover is aligned with the cavities of the insulating housing, but not with the partition separating the cavities. Therefore, as a solution to the second technical problem, step S2 includes the following 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 place it upright in the second carrier and fix it; S2.2. Loading 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 to the top of the insulating shell for installation, the first specified direction and the second specified direction can satisfy the one-to-one alignment of the three electrode openings of the insulating cover and the three cavities of the insulating shell.

[0013] To facilitate the determination of alignment, preferably, when performing step S2.1, a protruding marking point is found or set on the side of the insulating shell, and the insulating shell is rotated to point its marking point toward the first specified direction; when performing step S2.2, a protruding marking point is found or set on the side of the insulating cover, and the insulating cover is rotated to point its marking point toward the second specified direction, so that the three electrode openings of the insulating cover are aligned one by one with the three cavities of the insulating shell.

[0014] Further, when performing the step S2.1, the insulating shell is placed on a rotating platform rotating at a uniform speed, and the insulating shell is illuminated from the side by a reflecting optical fiber, and its optical axis is aligned with the marking point of the insulating shell, and the time when the reflecting optical fiber first detects the detection convex point is used as the time starting point to eliminate the influence of the different initial orientations of the marking point, and then the time required for the insulating shell to rotate once can be determined based on the time difference between the two times when the reflecting optical fiber detects the marking point, and the time required for the insulating shell to rotate once can be calculated, thereby calculating the time required to rotate to the first specified direction; when performing the step S2.2, the insulating cover body is placed on a rotating platform rotating at a uniform speed, and the insulating cover body is illuminated from the side by a reflecting optical fiber, and its optical axis is aligned with the marking point of the insulating cover body, and the time when the reflecting optical fiber first detects the detection convex point is used as the time starting point to eliminate the influence of the different initial orientations of the marking point, and then the time required for the insulating cover body to rotate once can be determined based on the time difference between the two times when the reflecting optical fiber detects the marking point, thereby calculating the time required to rotate to the second specified direction. This method can make the operation more intuitive and simple, and it can be realized without introducing a visual system when it is transferred to an automated device.

[0015] Furthermore, when performing steps S2.1 and S2.2, the rotating platform and the reflecting optical fiber are controlled by the control system, and the control system is configured to calculate the rotation angle based on the interval time between two adjacent detections of the mark points, and control the rotating platform to stop, thereby rotating the insulating shell and the insulating cover to a specified direction.

[0016] Specifically, the step S2 further includes the following sub-steps: S2.3, installing the contact components: taking out the contact components assembled in step S1 from the first carrier, and respectively filling the three contact components into the three independent cavities of the insulating housing; S2.4. Install the insulating cover: translate the insulating cover, pre-install it on top of the insulating shell, and then fix the two by welding.

[0017] Specifically, the step S2 further includes the following sub-steps: S2.5, Screw withdrawal: retract the screws of the contact components through the screw channel opened on the side of the insulating shell, so that the screws are withdrawn until the interface of the copper joint is aligned with the electrode opening of the insulating cover. The existing method adopts the method of screwing the screws to the specified position in one step when all components are loose, while this solution improves it to withdraw the screws from the locked standardized state to the specified position, making the operation easier and improving the yield.

[0018] Preferably, the step 2 further comprises the following sub-steps: S2.6, Quality inspection: Check whether the screws are put back in place and sort out good and bad products.

[0019] Compared with the prior art, the present invention assembles the plugs, screws and copper joints into a standardized contact assembly, and then installs the contact assembly 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, making manual assembly easier. Not only that, the present invention also provides a basis for the application of automation systems, because its specific assembly sequence and relatively simplified operating logic are more easily adopted by automation systems, thereby improving production efficiency and ensuring yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a flow chart of an embodiment of the present invention; Figure 2 Schematic diagram of the sub-step flow of step S1 of an embodiment of the present invention; Figure 3 Schematic diagram of the sub-step flow of step S2 of an embodiment of the present invention. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below with reference to the accompanying drawings.

[0022] like Figures 1 to 3 As shown, a preferred embodiment of a method for assembling a power core of the present invention is shown.

[0023] The method of this embodiment includes steps S1 of assembling the contact assembly and S2 of assembling the inner core. Figure 1 shown.

[0024] S1 assembles the contact assembly, specifically, completely tightens the insert and the copper connector by screws to form a contact assembly. Figure 2 As shown, this step is divided into three sub-steps: S1.1. Copper joint loading: prepare the copper joint and put it into the first carrier for fixing; S1.2. Install the plug: insert the plug-in part of the plug into the socket of the copper joint; S1.3, locking screws: pre-lock the screws into the screw holes opened on the side of the copper connector, and then lock the plug-in and copper connector. Improve the consistency of the standardized contact components and prevent relative displacement between the copper connector and the plug-in during installation.

[0025] S2 assembles the inner core, specifically, the three assembled contact components are respectively placed in the cavity of the insulating shell, and then the insulating cover is installed and welded, and the interface of the copper joint is adjusted and aligned with the electrode opening of the insulating cover. In this step, it is particularly important to align the electrode opening of the insulating cover with the cavity of the insulating shell, and not with the partition separating the cavity. Figure 3 As shown, S2 is divided into six sub-steps: S2.1. Loading the insulating shell: prepare the insulating shell, rotate it along its own axis to the first specified direction, and then place it upright in the second carrier for fixing; to facilitate the determination of whether it is aligned, the present embodiment searches for or sets a protruding marking point on the side of the insulating shell, and rotates the insulating shell to direct its marking point toward the first specified direction; specifically, the operator or the automated machinery places the insulating shell on a rotating platform rotating at a uniform speed, and illuminates the insulating shell from the side through a reflecting optical fiber, with its optical axis aligned with the marking point of the insulating shell, and the time when the reflecting optical fiber first detects the detection protrusion is used as the time starting point to eliminate the influence of the different initial directions of the marking point, and then the time required for the insulating shell to rotate one circle can be determined based on the time difference between the two detections of the marking point by the reflecting optical fiber, thereby calculating the time required to rotate to the first specified direction; the rotating platform and the reflecting optical fiber are controlled by a control system, and the control system is configured to calculate the rotation angle based on the interval time between two adjacent detections of the marking point, and the rotating platform is controlled to stop, so as to rotate the insulating shell to the first specified direction; S2.2, loading 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 to the top of the insulating shell for installation, the first specified direction and the second specified direction can satisfy the three electrode openings of the insulating cover and the three cavities of the insulating shell to be aligned 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 to face the marking point toward the second specified direction, so that the three electrode openings of the insulating cover are aligned one by one with the three cavities of the insulating shell; specifically, the operator or the automated machine places the insulating cover on a uniformly rotating The rotating platform illuminates the insulating cover from the side through the reflecting optical fiber, and its optical axis is aligned with the marking point of the insulating cover. The time when the reflecting optical fiber detects the detection convex point for the first time is used as the time starting point to eliminate the influence of the different initial orientations of the marking point. Then, the time required for the insulating cover to rotate one circle can be determined according to the time difference between the two times when the reflecting optical fiber detects the marking point, and the time required to rotate to the second specified direction can be calculated accordingly; the rotating platform and the reflecting optical fiber are controlled by the control system, and the control system is configured to calculate the rotation angle according to the interval time between two adjacent detections of the marking point, and the rotating platform is controlled to stop, so as to rotate the insulating cover to the second specified direction; S2.3, installing the contact components: taking out the contact components assembled in step S1 from the first carrier, and respectively filling the three contact components into the three independent cavities of the insulating housing; S2.4, install the insulation cover: translate the insulation cover, pre-install it on the insulation shell, and then fix the two by welding; S2.5, Screw withdrawal: retract the screws of the contact components through the screw channel opened on the side of the insulating shell, so that the screws are withdrawn until the interface of the copper joint is aligned with the electrode opening of the insulating cover. The existing method adopts the method of screwing the screws to the specified position in one step when all components are loose, while this scheme improves it to withdraw the screws from the locked standardized state to the specified position, making the operation easier and improving the yield; S2.6, Quality inspection: Check whether the screws are put back in place and sort out good and bad products.

Claims

1. A method for assembling a power core, characterized in that: Includes steps: S1. Assemble the contact assembly: completely tighten the insert and the copper joint with screws to form a contact assembly; S2. Assemble the inner core: respectively place the three assembled contact components in the cavities of the insulating shell, then install and weld the insulating cover, and align the interface of the copper joint with the electrode opening of the insulating cover.

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

1. Copper joint loading: prepare the copper joint and put it into the first carrier for fixing; S1.

2. Install the plug: insert the plug-in part into the socket of the copper joint.

3. The assembly method according to claim 2, characterized in that: The step S1 further comprises the following sub-steps: S1.3, Locking screw: The screw is pre-locked into the screw hole opened on the side of the copper joint, and then the plug-in piece and the copper joint are locked.

4. The assembly method according to any one of claims 1 to 3, characterized in that: The step S2 comprises the following 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 place it upright in the second carrier and fix it; S2.

2. Loading 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 to the top of the insulating shell for installation, the first specified direction and the second specified direction can satisfy the one-to-one alignment of the three electrode openings of the insulating cover and the three cavities of the insulating shell.

5. The assembly method according to claim 4, characterized in that: When performing step S2.1, a protruding marking point is found or set on the side of the insulating housing, and the insulating housing is rotated to make the marking point face the first specified direction; When performing step S2.2, find or set a protruding marking point on the side of the insulating cover, rotate the insulating cover to point its marking point toward the second specified direction, so that the three electrode openings of the insulating cover are aligned one by one with the three cavities of the insulating shell.

6. The assembly method according to claim 5, characterized in that: When performing step S2.1, the insulating shell is placed on a rotating platform that rotates at a uniform speed, and the insulating shell is illuminated from the side by a reflecting optical fiber, with its optical axis aligned with the marking point of the insulating shell. The time when the reflecting optical fiber detects the detection convex point for the first time is used as the time starting point to eliminate the influence of the different initial orientations of the marking point. The time required for the insulating shell to rotate once can be determined based on the time difference between the two times when the reflecting optical fiber detects the marking point, and the time required to rotate to the first specified direction can be calculated accordingly; When performing step S2.2, the insulating cover is placed on a rotating platform that rotates at a uniform speed, and the insulating cover is illuminated from the side by a reflecting optical fiber, with its optical axis aligned with the marking point of the insulating cover. The time when the reflecting optical fiber detects the detection bump for the first time is used as the time starting point to eliminate the influence of the different initial orientations of the marking point. The time required for the insulating cover to rotate one circle can be determined based on the time difference between the two times the reflecting optical fiber detects the marking point, thereby calculating the time required to rotate to the second specified direction.

7. The assembly method according to claim 6, characterized in that: When performing steps S2.1 and S2.2, the rotating platform and the reflective optical fiber are controlled by the control system, and the control system is configured to calculate the rotation angle based on the interval time between two adjacent detections of the mark points, and control the rotating platform to stop, thereby rotating the insulating shell and the insulating cover to the specified direction.

8. The assembly method according to claim 5, characterized in that: The step S2 further comprises the following sub-steps: S2.3, installing the contact components: taking out the contact components assembled in step S1 from the first carrier, and respectively filling the three contact components into the three independent cavities of the insulating housing; S2.

4. Install the insulating cover: translate the insulating cover, pre-install it on top of the insulating shell, and then fix the two by welding.

9. The assembly method according to claim 8, characterized in that: The step S2 further comprises the following sub-steps: S2.

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

10. The assembly method according to claim 9, characterized in that: The step 2 also includes the following sub-steps: S2.6, Quality inspection: Check whether the screws are put back in place and sort out good and bad products.

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