Current transformer automatic assembly line

Abstract

A current transformer automatic assembly line includes a workbench, a conveyor belt is provided on the workbench, and a coil assembly unit, a curing detour unit, a shell assembly unit, a terminal standard part fastening unit and a protective cover installation unit are sequentially arranged on the workbench. The coil assembly unit is used to convey and assemble the shell and coil of the transformer, the curing detour unit is used to extend the curing time of the coil in the shell, the shell assembly unit is used to assemble the shell and monitor and discharge waste, the terminal standard part fastening unit is used to fasten the terminal, and the protective cover installation unit is used to install the protective cover on the shell. This patent mainly solves the assembly of the finished product of the above-mentioned molded case current transformer, adopts a combination of mechanical and electrical, solves each production process according to the product process, uses a combination of electric and pneumatic to achieve automation, uses a conveying device to connect each process, and completes the assembly of the entire product.

Description

Technical Field

[0001] The present invention relates to the field of mutual inductor assembly, and in particular to an automatic assembly line for current mutual inductors. Background Art

[0002] Molded case current transformers primarily consist of a coil assembly, a housing, and accessories. The coil assembly is mounted within the housing, which is riveted together. Existing assembly processes rely on manual or semi-automatic riveting, performed on conventional assembly lines. This requires significant floor space and labor, and the limited skills of operators hinders production efficiency. Summary of the Invention

[0003] In view of this, the present invention provides an automatic assembly line for current transformers.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A current transformer automatic assembly line includes a workbench, a conveyor belt is provided on the workbench, and a coil assembly unit, a curing detour unit, a housing assembly unit, a terminal standard part fastening unit and a protective cover installation unit are sequentially arranged on the workbench. The coil assembly unit is used to convey and assemble the housing and coil of the transformer, the curing detour unit is used to extend the curing time of the coil in the housing, the housing assembly unit is used to assemble the housing and monitor and discharge waste, the terminal standard part fastening unit is used to fasten the terminal, and the protective cover installation unit is used to install the protective cover on the housing.

[0006] Preferably, the coil assembly unit includes a first upper shell conveyor belt and a first lower shell conveyor belt, the upper shell is conveyed on the first upper shell conveyor belt, the lower shell is conveyed on the first lower shell conveyor belt, a coil is arranged in the lower shell, the coil is connected to the lower shell, and the first upper shell conveyor belt and the first lower shell conveyor belt are both connected to the curing detour unit.

[0007] Preferably, the curing detour unit includes a second upper shell conveyor belt and a curing detour conveyor belt, the curing detour conveyor belt is arranged in an S shape, the curing detour conveyor belt is connected to the first lower shell conveyor belt, and the second upper shell conveyor belt is connected to the first upper shell conveyor belt.

[0008] Preferably, the shell assembly unit includes a third upper shell conveyor belt, a second lower shell conveyor belt, a nut vibration plate, a waste discharge detection device and a manipulator, and the nut vibration plate, manipulator and waste discharge detection device are arranged on a workbench at the shell assembly unit at the same time, and the manipulator includes a nut picking manipulator and a shell installation manipulator.

[0009] Preferably, the terminal standard fastening unit includes a transformer conveyor belt, a screw vibration disk and a screw installation device, a screw guide device is formed between the screw vibration disk and the screw installation device, screws are arranged in the screw vibration disk, the screws are transported to the screw installation device through the screw guide device, the transformer conveyor belt transports the transformer housing to the screw installation device, and the screw installation device connects the screws to the transformer housing.

[0010] Preferably, the protective cover installation unit includes a protective cover vibration plate, a protective cover installation station and a protective cover picking robot. A protective cover is provided in the protective cover vibration plate. The protective cover is transferred to the protective cover installation station via the protective cover vibration plate. The protective cover robot transports the protective cover from the protective cover installation station to the shell and connects it to the shell.

[0011] Preferably, a nut guide device is provided between the nut vibrating plate and the workbench, the nuts are transported to the workbench through the nut guide device, the nut picking robot picks up the nuts and installs them on the shell, and the shell installation robot picks up the upper shell and installs it on the lower shell.

[0012] Preferably, at least two screw vibration disks are provided, and the screw installation device is provided corresponding to the screw vibration disks. The screw installation device is an electric screwdriver, and the screw is screwed into the housing by the electric screwdriver.

[0013] Preferably, a control unit is further provided on the workbench, and the control unit includes a touch screen, and the control unit is communicatively connected with the coil assembly unit, the curing detour unit, the shell assembly unit, the terminal standard part fastening unit and the protective cover installation unit.

[0014] The beneficial effects of the present invention are as follows: this patent mainly solves the assembly of the finished product of the above-mentioned molded case current transformer, adopts the combination of mechanical and electrical, solves each production process according to the product process, realizes automation by combining electric and pneumatic, uses the transmission device to connect each process, and completes the assembly of the entire product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Attachment Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Attachment Figure 2 For attachment Figure 1A magnified view of point A in the figure;

[0018] Attachment Figure 3 For attachment Figure 1 Enlarged view of point B in FIG.

[0019] Attachment Figure 4 For attachment Figure 1 Enlarged view of point C in the figure;

[0020] Attachment Figure 5 For attachment Figure 1 Enlarged view of point D in .

[0021] Reference numerals:

[0022] 1. Coil assembly unit, 2. Curing detour unit, 3. Shell assembly unit, 4. Terminal standard parts fastening unit, 5. Protective cover installation unit, 6. Waste discharge detection device, 7. First upper shell conveyor belt, 8. First lower shell conveyor belt, 9. Second upper shell conveyor belt, 10. Curing detour conveyor belt, 11. Third upper shell conveyor belt, 12. Second lower shell conveyor belt, 13. Nut vibration disk, 14. Nut picking robot, 15. Shell installation robot, 16. Nut station, 17. Diversion device, 18. Transformer conveyor belt, 19. Screw vibration disk, 20. Screw installation device, 21. Protective cover vibration disk, 22. Protective cover installation station, 23. Protective cover picking robot, 24. Nut diversion device, 25. Screw diversion device. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] The present invention provides the following technical solutions:

[0026] As attached Figures 1 to 5As shown, the present invention discloses an automatic assembly line for current transformers, comprising a workbench, on which a conveyor belt is arranged, and on which a coil assembly unit 1, a curing detour unit 2, a housing assembly unit 3, a terminal standard part fastening unit 4 and a protective cover installation unit 5 are sequentially arranged. The coil assembly unit 1 is used for conveying and assembling the housing and coil of the transformer, the curing detour unit 2 is used for prolonging the curing time of the coil in the housing, the housing assembly unit 3 is used for assembling the housing and monitoring and discharging waste, the terminal standard part fastening unit 4 is used for fastening the terminal, and the protective cover installation unit 5 is used for installing the protective cover 17 on the housing.

[0027] Reference Attachment Figure 1 As shown, the coil assembly unit 1 further includes a first upper shell conveyor belt 7 and a first lower shell conveyor belt 8. The upper shell is conveyed on the first upper shell conveyor belt 7, and the lower shell is conveyed on the first lower shell conveyor belt 8. The coil is arranged in the lower shell, and the coil is connected to the lower shell. The first upper shell conveyor belt 7 and the first lower shell conveyor belt 8 are both connected to the curing detour unit 2. Specifically, the staff places the upper shell on the first upper shell conveyor belt 7, fixes the coil in the lower shell with glue, and conveys the upper shell and the lower shell, as well as the coil in the lower shell, to the curing detour unit 2 of the workbench via the first upper shell conveyor belt 7 and the first lower shell conveyor belt 8, respectively.

[0028] Reference Attachment Figure 1 As shown, further, the curing detour unit 2 includes a second upper shell conveyor belt 9 and a curing detour conveyor belt 10, the curing detour conveyor belt 10 is arranged in an S shape, the curing detour conveyor belt 10 is connected to the first lower shell conveyor belt 8, and the second upper shell conveyor belt 9 is connected to the first upper shell conveyor belt 7. Specifically, by providing the curing detour unit 2, and the overall length of the curing detour conveyor belt 10 in the curing detour unit 2 is longer than the length of the second upper shell conveyor belt 9, the conveying time of the lower shell and the coil in the lower shell on the curing detour conveyor belt 10 is longer than the conveying time of the upper shell on the second upper shell conveyor belt 9, so that the glue between the lower shell and the coil can get sufficient time to solidify, making it less likely for the coil to fall off from the lower shell.

[0029] Reference Attachment Figure 2-3As shown, further, the shell assembly unit 3 includes a third upper shell conveyor belt 11, a second lower shell conveyor belt 12, a nut vibration plate 13, a waste discharge detection device 6 and a manipulator, and the nut vibration plate 13, the manipulator and the waste discharge detection device 6 are arranged on a workbench at the shell assembly unit 3 at the same time, and the manipulator includes a nut picking manipulator 14 and a shell installation manipulator 15. Specifically, the nut vibration disk 13 sorts the nuts in the nut vibration disk 13 in sequence, and transports them to the nut station 16 on the workbench through the guide device 17. When the lower shell is transported by the second lower shell conveyor belt 12 through the nut picking robot 14, the nut picking robot 14 picks up the nuts on the nut station 16 and places them on the lower shell. When the lower shell passes through the shell installation robot 15, the shell installation robot 15 picks up the upper shell on the third upper shell conveyor belt 11, places it on the lower shell and connects it to the lower shell. Then the third upper shell conveyor belt 11 and the second lower shell conveyor belt 12 are merged into a shell conveyor belt. The waste discharge detection device 6 is arranged at the tail end of the shell assembly unit 3. The waste discharge detection device 6 will inspect the passing shell. If an unqualified shell is detected, the shell will be discharged from the assembly line.

[0030] Reference Attachment Figure 4 As shown, further, the terminal standard fastening unit 4 includes a transformer conveyor belt 18, a screw vibration disk 19 and a screw installation device 20, a screw guide device 25 is formed between the screw vibration disk 19 and the screw installation device 20, and screws are arranged in the screw vibration disk 19. The screws are transported to the screw installation device 20 through the screw guide device 25, and the transformer conveyor belt 18 transports the transformer housing to the screw installation device 20, and the screw installation device 20 connects the screws to the transformer housing. Specifically, when the housing is transported to the position of the screw installation device 20 by the transformer conveyor belt 18, the screw vibration disk 19 arranges the internal screws in sequence from the guide device to the position of the screw installation device 20, and then the screw installation device 20 installs the screws on the housing.

[0031] Reference Attachment Figure 5 As shown, further, the protective cover installation unit 5 includes a protective cover vibration disk 21, a protective cover installation station 22 and a protective cover picking robot 23. A protective cover is provided in the protective cover vibration disk 21. The protective cover is transferred to the protective cover installation station 22 via the protective cover vibration disk 21. The protective cover robot transports the protective cover from the protective cover installation station 22 to the shell and connects it to the shell. Specifically, when the shell is transported to the position of the protective cover picking robot 23, the protective cover vibration disk 21 arranges the internal protective covers in sequence and transports them to the position of the protective cover picking robot 23 by the guide device. The protective cover picking robot 23 then installs the protective cover on the shell to complete the assembly. Finally, the assembled mutual inductor is transported to the packaging area by the conveyor belt for packaging.

[0032] Furthermore, a nut guide device 24 is provided between the nut vibration plate 13 and the workbench, and the nut is transported to the workbench through the nut guide device 24. The nut picking robot 14 picks up the nut and installs it on the shell, and the shell installation robot 15 picks up the upper shell and installs it on the lower shell.

[0033] Furthermore, at least two screw vibration disks 19 are provided, and the screw installation device 20 is provided corresponding to the screw vibration disks 19. The screw installation device 20 is an electric screwdriver, and the screws are screwed into the housing by the electric screwdriver. Specifically, in this embodiment, the guide device between the screw vibration disk 19 and the screw installation device 20 is a guide groove formed on the screw vibration disk 19. In other embodiments, the guide device can also be a guide pipe, and the two ends of the guide pipe are correspondingly connected to the vibration disk and the screw installation device 20 to transport the required screws to the screw installation station.

[0034] Furthermore, a control unit (not shown) is provided on the workbench. The control unit includes a touch screen and is in communication with the coil assembly unit 1, the curing detour unit 2, the housing assembly unit 3, the terminal block fastening unit 4, and the protective cover installation unit 5. Specifically, by providing the control unit with an automatic sensing function, the entire assembly line operates automatically. Each unit can provide a signal to the control system, and the material status information is within the control range. If a unit fails, it and the previous process will stop working and an alarm will be issued. During normal operation, the production rhythm of each action unit is consistent.

[0035] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic assembly line for current transformers, comprising a workbench with a conveyor belt provided thereon, characterized in that: A coil assembly unit, a curing detour unit, a shell assembly unit, a terminal standard part fastening unit and a protective cover installation unit are sequentially arranged on the workbench. The coil assembly unit is used to convey and assemble the shell and coil of the mutual inductor. The curing detour unit is used to prolong the curing time of the coil in the shell. The shell assembly unit is used to assemble the shell and monitor and discharge waste. The terminal standard part fastening unit is used to fasten the terminal. The protective cover installation unit is used to install the protective cover on the shell. The coil assembly unit includes a first upper shell conveyor belt and a first lower shell conveyor belt. The upper shell is conveyed on the first upper shell conveyor belt, and the lower shell is conveyed on the first lower shell conveyor belt. A coil is arranged in the lower shell, and the coil is connected to the lower shell. The first upper shell conveyor belt and the first lower shell conveyor belt are both connected to the curing detour unit. The curing detour unit includes a second upper shell conveyor belt and a curing detour conveyor belt. The curing detour conveyor belt is arranged in an S shape, the curing detour conveyor belt is connected to the first lower shell conveyor belt, and the second upper shell conveyor belt is connected to the first upper shell conveyor belt.

2. The current transformer automatic assembly line according to claim 1, characterized in that: The shell assembly unit includes a third upper shell conveyor belt, a second lower shell conveyor belt, a nut vibration plate, a waste discharge detection device and a manipulator. The nut vibration plate, the manipulator and the waste discharge detection device are arranged on a workbench at the shell assembly unit at the same time. The manipulator includes a nut picking manipulator and a shell installation manipulator.

3. The automatic assembly line for current transformers according to claim 1, characterized in that: The terminal standard fastening unit includes a transformer conveyor belt, a screw vibration plate and a screw installation device. A screw guide device is formed between the screw vibration plate and the screw installation device. Screws are arranged in the screw vibration plate. The screws are transported to the screw installation device through the screw guide device. The transformer conveyor belt transports the transformer housing to the screw installation device. The screw installation device connects the screws to the transformer housing.

4. The automatic assembly line for current transformers according to claim 1, characterized in that: The protective cover installation unit includes a protective cover vibration plate, a protective cover installation station and a protective cover picking robot. A protective cover is provided in the protective cover vibration plate. The protective cover is transferred to the protective cover installation station via the protective cover vibration plate. The protective cover robot transports the protective cover from the protective cover installation station to the shell and connects it to the shell.

5. The automatic assembly line for current transformers according to claim 2, characterized in that: A nut guide device is provided between the nut vibrating plate and the workbench, and the nut is transported to the workbench through the nut guide device. The nut picking robot picks up the nut and installs it on the shell, and the shell installation robot picks up the upper shell and installs it on the lower shell.

6. The automatic assembly line for current transformers according to claim 3, characterized in that: At least two screw vibration disks are provided, and the screw installation device is provided corresponding to the screw vibration disks. The screw installation device is an electric screwdriver, and the screw is screwed into the housing by the electric screwdriver.

7. The automatic assembly line for current transformers according to claim 1, characterized in that: A control unit is also provided on the workbench, and the control unit includes a touch screen. The control unit is communicatively connected with the coil assembly unit, the curing detour unit, the shell assembly unit, the terminal standard part fastening unit and the protective cover installation unit.

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