CN217475185U - Automatic wire feeding device for pin welding machine - Google Patents
Automatic wire feeding device for pin welding machine Download PDFInfo
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- CN217475185U CN217475185U CN202221669445.5U CN202221669445U CN217475185U CN 217475185 U CN217475185 U CN 217475185U CN 202221669445 U CN202221669445 U CN 202221669445U CN 217475185 U CN217475185 U CN 217475185U
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Abstract
The utility model discloses an automatic wire feeding device for a pin welding machine, wherein a frame of the pin welding machine is provided with a pin welding assembly and an automatic wire feeding assembly, the automatic wire feeding assembly comprises a wire feeding mounting seat, the wire feeding mounting seat is provided with an automatic cutting mechanism and a linear module horizontally acting along the front and back direction, the driving end of the linear module is provided with a movable mounting seat, and the movable mounting seat is provided with an automatic wire clamping mechanism positioned at the front end side of the automatic cutting mechanism; the automatic wire clamping mechanism comprises a wire clamping mounting frame, a fixed wire clamping block and a movable wire clamping block are mounted on the wire clamping mounting frame, the movable wire clamping block is driven by a wire clamping driving cylinder, the fixed wire clamping block is fastened on the wire clamping mounting frame in a screwed mode, and a wire passing groove is formed in the fixed wire clamping block. Through the structure design, the utility model discloses can realize the copper line automatically and high-efficiently and supply with the pay-off, promptly the utility model has the advantages of structural design is novel, degree of automation is high.
Description
Technical Field
The utility model relates to a pin welding machine technical field especially relates to an automatic wire feeding device for pin welding machine.
Background
Ceramic Gas Discharge Tube (GDT), which is a closed device formed by filling inert gas in one or more discharge gaps; the electrical properties of ceramic gas discharge tubes depend on factors such as the type of gas, the gas pressure, the internal electrode structure, the fabrication process, etc. When the voltage applied to the two electrode terminals (electrode pins) reaches the voltage to make the gas in the GDT break down, the discharge is started, the high impedance is changed into low impedance, the surge voltage is quickly short-circuited to be close to zero voltage, and the over-current is released into the ground, so that the subsequent circuit is protected.
For a ceramic gas discharge tube, two ends of the ceramic gas discharge tube are respectively provided with an electrode, and each electrode is respectively welded with an electrode pin, and the electrode pin is generally formed by welding a copper wire at the position of the electrode.
In the production and preparation process of the ceramic gas discharge tube, the electrode pin welding process is generally realized by a pin welding machine, that is, a copper wire is welded at the electrode position of the ceramic gas discharge tube by the pin welding machine to form an electrode pin. For a pin welder, the electrode pin welding process is mainly realized by a pin welding assembly.
It should be noted that, for the existing pin welding machine applied to ceramic gas discharge tubes, wire feeding is generally realized by a manual wire feeding mode, that is, copper wires cut into specified lengths are positioned and placed at the position of a pin welding assembly by a human; for the wire feeding mode, the defects of low automation degree, high labor cost and low working efficiency exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art not enough and provide an automatic wire feeder for pin welding machine, this automatic wire feeder for pin welding machine can realize the copper line automatically and high-efficiently and supply with the pay-off, and structural design is novel, degree of automation is high.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
An automatic wire feeding device for a pin welding machine comprises a rack, wherein the rack is provided with a pin welding assembly and an automatic wire feeding assembly which is positioned beside the pin welding assembly and used for conveying copper wires towards the pin welding assembly;
the automatic wire feeding assembly comprises a wire feeding mounting seat which is screwed and fastened on the rack, the wire feeding mounting seat is provided with an automatic cutting mechanism and a linear module which horizontally moves along the front-back direction, the driving end of the linear module is provided with a movable mounting seat, and the movable mounting seat is provided with an automatic wire clamping mechanism positioned on the front end side of the automatic cutting mechanism;
the automatic wire clamping mechanism comprises a wire clamping mounting frame arranged at the front end part of the movable mounting seat, the wire clamping mounting frame is provided with a fixed wire clamping block and a movable wire clamping block, the fixed wire clamping block is screwed and fastened on the wire clamping mounting frame, and the fixed wire clamping block is provided with a wire passing groove which is opened towards the side of the movable wire clamping block and completely penetrates through the front and the back of the wire passing groove; the wire clamping mounting frame is provided with a wire clamping driving cylinder which horizontally moves left and right corresponding to the movable wire clamping block, and the wire clamping driving cylinder is in driving connection with the movable wire clamping block;
when the fixed wire clamping block and the movable wire clamping block are closed, the movable wire clamping block is inserted into the wire passing groove of the fixed wire clamping block.
The automatic cutting mechanism comprises a movable swing arm, and the movable swing arm is hinged to the wire feeding mounting seat through a pivot;
one end part of the movable swing arm is fixedly provided with a threading sleeve positioned on the rear end side of the fixed wire clamping block, and the core part of the threading sleeve is provided with a sleeve through hole which is completely penetrated in the front and back; the wire feeding mounting seat is provided with a swing arm driving cylinder corresponding to the movable swing arm, and the extending end of a piston rod of the swing arm driving cylinder is in driving connection with the other end of the movable swing arm;
the thread feeding mounting seat is screwed with a cutting blade which is contacted with the front end face of the threading sleeve and is positioned beside the opening at the front end of the sleeve through hole.
The extension end part of a piston rod of the wire clamping driving cylinder is connected with a wire clamping driving shaft horizontally extending along the left-right direction, and the movable wire clamping block is screwed and fastened at the end part of the wire clamping driving shaft;
the wire clamping mounting frame is provided with a driving shaft guide sleeve corresponding to the wire clamping driving shaft, and the wire clamping driving shaft penetrates through a center hole of the driving shaft guide sleeve.
Wherein, the fixed thread clamping block is provided with a nitrogen nozzle.
The wire feeding mounting seat is provided with at least two wire blocks which are sequentially arranged from front to back at intervals on the rear end side of the automatic cutting mechanism, and each wire block is provided with a wire hole which is completely penetrated from front to back and is used for a copper wire to pass through.
The movable mounting base is provided with a linear guide rail horizontally extending along the front-back direction in a threaded manner, the wire clamping mounting frame is provided with a linear sliding block in a threaded manner corresponding to the linear guide rail, and the linear guide rail is matched with the linear sliding block to form a guide pair structure;
a fine adjustment mechanism is arranged between the movable mounting seat and the wire clamping mounting frame.
The fine adjustment mechanism comprises a micrometer installed on the movable installation seat, and a screw rod of the micrometer is connected with the wire clamping installation frame.
The wire clamping mounting frame is provided with a fine tuning guide sleeve corresponding to the fine tuning guide sleeve, and a fine tuning guide pillar extending along the front-back direction is arranged on the wire clamping mounting frame and is embedded in a central hole of the fine tuning guide sleeve.
The beneficial effects of the utility model are that: the utility model relates to an automatic wire feeding device for a pin welding machine, which comprises a frame, wherein the frame is provided with a pin welding assembly and an automatic wire feeding assembly which is positioned beside the pin welding assembly and conveys copper wires towards the side of the pin welding assembly; the automatic wire feeding assembly comprises a wire feeding mounting seat which is screwed and fastened on the rack, the wire feeding mounting seat is provided with an automatic cutting mechanism and a linear module which horizontally moves along the front-back direction, the driving end of the linear module is provided with a movable mounting seat, and the movable mounting seat is provided with an automatic wire clamping mechanism positioned on the front end side of the automatic cutting mechanism; the automatic wire clamping mechanism comprises a wire clamping mounting frame arranged at the front end part of the movable mounting seat, the wire clamping mounting frame is provided with a fixed wire clamping block and a movable wire clamping block, the fixed wire clamping block is screwed and fastened on the wire clamping mounting frame, and the fixed wire clamping block is provided with a wire passing groove which is opened towards the side of the movable wire clamping block and completely penetrates through the front part and the rear part; the wire clamping mounting frame is provided with a wire clamping driving cylinder which horizontally moves left and right corresponding to the movable wire clamping block, and the wire clamping driving cylinder is in driving connection with the movable wire clamping block; when the fixed wire clamping block and the movable wire clamping block are closed, the movable wire clamping block is inserted into the wire passing groove of the fixed wire clamping block. Through the structure design, the utility model discloses can realize the copper line automatically and high-efficiently and supply with the pay-off, promptly the utility model has the advantages of structural design is novel, degree of automation is high.
Drawings
The invention will be further described with reference to the drawings, but the embodiments in the drawings do not constitute any limitation of the invention.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of another view angle of the present invention.
Fig. 3 is a schematic structural diagram of another view angle of the present invention.
Fig. 4 is a schematic structural view of the automatic wire clamping mechanism of the present invention.
Fig. 5 is a schematic structural view of the automatic cutting mechanism of the present invention.
Fig. 1 to 5 include:
1-wire feeding mounting seat 2-automatic cutting mechanism
21-Movable swing arm 22-threading sleeve
221-sleeve through hole 23-swing arm driving cylinder
24-cutting blade 3-linear module
4-movable mounting seat 5-automatic wire clamping mechanism
51-wire clamping mounting rack 52-fixed wire clamping block
521-wire-passing groove 53-movable wire clamping block
54-wire clamping driving cylinder 55-wire clamping driving shaft
56-drive shaft guide sleeve 6-nitrogen nozzle
7-lead block 71-lead hole
81-linear guide rail 82-linear slide block
9-fine adjustment mechanism 91-micrometer
92-fine tuning guide sleeve 93-fine tuning guide post.
Detailed Description
The present invention will be described with reference to specific embodiments.
The utility model provides a pin welding machine is with automatic wire feeding device, this pin welding machine is including frame (not shown in the figure), and pin welding subassembly (not shown in the figure), the automatic wire feeding subassembly that is located pin welding subassembly side and carries the copper line towards pin welding subassembly side have been installed to the frame.
Further, as shown in fig. 1 to 3, the automatic wire feeding assembly includes a wire feeding mounting base 1 screwed and fastened to the frame, the wire feeding mounting base 1 is provided with an automatic cutting mechanism 2 and a linear module 3 horizontally moving along the front-rear direction, a driving end of the linear module 3 is provided with a movable mounting base 4, and the movable mounting base 4 is provided with an automatic wire clamping mechanism 5 located at the front end side of the automatic cutting mechanism 2.
Further, as shown in fig. 1 to 4, the automatic wire clamping mechanism 5 includes a wire clamping mounting bracket 51 installed at the front end of the movable mounting seat 4, the wire clamping mounting bracket 51 is provided with a fixed wire clamping block 52 and a movable wire clamping block 53, the fixed wire clamping block 52 is screwed and fixed to the wire clamping mounting bracket 51, and the fixed wire clamping block 52 is provided with a wire passing groove 521 which is open towards the movable wire clamping block 53 and completely penetrates in the front and rear direction; the wire clamping mounting frame 51 is provided with a wire clamping driving cylinder 54 which horizontally moves left and right corresponding to the movable wire clamping block 53, and the wire clamping driving cylinder 54 is in driving connection with the movable wire clamping block 53; when the fixed wire clamping block 52 and the movable wire clamping block 53 are closed, the movable wire clamping block 53 is inserted into the wire passing groove 521 of the fixed wire clamping block 52.
The utility model discloses in the course of the work, horizontal migration around the linear module 3 drive movable mounting seat 4, the movable mounting seat 4 of front and back horizontal migration drives 5 synchronous back-and-forth movements of automatic thread trapper.
The following describes the present invention in detail with reference to a specific working process, wherein an electronic component to be subjected to pin welding is positioned at a pin welding assembly, and a copper wire conveyed from back to front passes through the wire passing groove 521 of the fixed wire clamping block 52 after passing through the automatic cutting mechanism 2; before the automatic cutting mechanism 2 cuts and cuts the copper wire, the wire clamping driving cylinder 54 is operated, and the wire clamping driving cylinder 54 drives the movable wire clamping block 53 to move towards the fixed wire clamping block 52, so that the movable wire clamping block 53 and the fixed wire clamping block 52 are closed, and in the process, the movable wire clamping block 53 is inserted into the wire passing groove 521 of the fixed wire clamping block 52 and clamps and fixes the copper wire; after the automatic wire clamping mechanism 5 clamps and fixes the copper wire, the automatic cutting mechanism 2 acts and cuts the copper wire; after the automatic cutting mechanism 2 cuts the copper wire, the linear module 3 drives the movable mounting seat 4 and the automatic wire clamping mechanism 5 to move forward, the copper wire which is clamped and fixed by the automatic wire clamping mechanism 5 and cut off is synchronously moved forward, and finally the cut copper wire is moved to the position of the pin welding assembly, and the pin welding assembly welds the copper wire to the electrode position of the electronic component to complete the pin welding operation.
Synthesize above-mentioned condition and know, through above-mentioned structural design, the utility model discloses can realize the copper line automatically and high-efficiently and supply with the pay-off, promptly the utility model has the advantages of structural design is novel, degree of automation is high.
As shown in fig. 2, 3 and 5, the automatic cutting mechanism 2 preferably includes a movable swing arm 21, and the movable swing arm 21 is pivotally attached to the thread feeding mount 1.
Wherein, one end of the movable swing arm 21 is tightly fixed with a threading sleeve 22 positioned at the rear end side of the fixed thread clamping block 52, and the core part of the threading sleeve 22 is provided with a sleeve through hole 221 which is completely penetrated in the front and the rear; the wire feeding mounting seat 1 is provided with a swing arm driving cylinder 23 corresponding to the movable swing arm 21, and the extending end of the piston rod of the swing arm driving cylinder 23 is in driving connection with the other end of the movable swing arm 21.
In addition, the thread feeding attachment seat 1 is screwed with a cutting blade 24 which is in contact with the front end face of the threading bush 22 and is located beside the opening of the front end of the bush through hole 221.
It should be explained that a spring is arranged between the other end of the movable swing arm 21 and the thread feeding mounting seat 1, and the spring is abutted against the other end of the movable swing arm 21 and urges the front end opening of the sleeve through hole 221 of the threading sleeve 22 to avoid the cutting blade 24; when the swing arm driving cylinder 23 is actuated, the piston rod extending end of the swing arm driving cylinder 23 pushes the other end of the movable swing arm 21 to actuate, so that the spring is compressed and the threading sleeve 22 moves towards the cutting blade 24 side, and the cutting blade 24 cuts and cuts the copper wire at the opening position of the front end of the sleeve through hole 221.
As a preferred embodiment, as shown in fig. 4, the wire clamping driving cylinder 54 of the present invention can be drivingly connected with the movable wire clamping block 53 in the following manner: a wire clamping driving shaft 55 horizontally extending along the left-right direction is connected to the extending end part of the piston rod of the wire clamping driving cylinder 54, and the movable wire clamping block 53 is screwed and fastened at the end part of the wire clamping driving shaft 55; the thread clamping installation rack 51 is provided with a driving shaft guide sleeve 56 corresponding to the thread clamping driving shaft 55, and the thread clamping driving shaft 55 passes through the central hole of the driving shaft guide sleeve 56.
Cooperate through drive shaft guide pin bushing 56 and double-layered line drive shaft 55, the utility model discloses can guarantee that movable clamp line piece 53 steadily and accurately relatively fixed clamp line piece 52 removes.
As a preferred embodiment, as shown in fig. 1 to 4, the nitrogen nozzle 6 is mounted on the fixing thread clamping block 52.
The utility model discloses a nitrogen gas mouth 6 is connected with nitrogen gas feeding device through gas transmission pipeline, carries out pin welding operation's in-process at pin welding subassembly, the utility model discloses a nitrogen gas mouth 6 is along with copper line synchronous movement to pin welding subassembly position, during the welding, nitrogen gas protective gas can be supplied with to nitrogen gas mouth 6.
As shown in fig. 1, 2 and 5, in a preferred embodiment, at least two lead blocks 7 are installed on the rear end side of the automatic cutting mechanism 2 in the wire feeding mount 1, the lead blocks 7 being sequentially spaced from the front to the rear, and each lead block 7 is provided with a lead hole 71 which is completely penetrated in the front and rear direction and through which a copper wire passes.
The utility model discloses in the course of the work, the copper line is carried forward from the back, and the copper line loops through the wire guide 71 of a plurality of wire blocks 7, and the wire guide 71 of wire block 7 can guide the copper line to carry forward accurately to guarantee that the copper line can accurately aim at the sleeve pipe through-hole 221 that passes to the threading sleeve pipe 22 of automatic cutting mechanism 2.
As a preferred embodiment, as shown in fig. 1 and fig. 2, a linear guide 81 horizontally extending along the front-rear direction is screwed on the movable mounting seat 4, a linear slider 82 is screwed on the linear guide 81 corresponding to the wire clamping mounting frame 51, and the linear guide 81 and the linear slider 82 are matched to form a guide pair structure;
a fine adjustment mechanism 9 is arranged between the movable mounting seat 4 and the wire clamping mounting rack 51.
Specifically, the fine adjustment mechanism 9 includes a micrometer 91 installed on the movable installation seat 4, and a screw of the micrometer 91 is connected with the wire clamping installation frame 51.
Furthermore, the movable mounting seat 4 is provided with a fine adjustment guide sleeve 92, the wire clamping mounting bracket 51 is provided with a fine adjustment guide pillar 93 corresponding to the fine adjustment guide sleeve 92 and extending along the front-rear direction, and the fine adjustment guide pillar 93 is inserted into the central hole of the fine adjustment guide sleeve 92.
The utility model discloses in the course of the work, staff's accessible micrometer 91 adjusts the front and back relative position of double-layered line mounting bracket 51 with movable mounting seat 4, and when automatic double-layered line mechanism 5 will cut out the copper line after cutting off and send into to pin welded assembly position, can guarantee copper line and electronic components's electrode reliable contact through the fine setting to guarantee pin welding quality.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and it is to be understood that the present invention is not limited to the above embodiments, but may be modified within the scope of the present invention.
Claims (8)
1. An automatic wire feeding device for a pin welding machine comprises a rack, wherein the rack is provided with a pin welding assembly and an automatic wire feeding assembly which is positioned beside the pin welding assembly and conveys copper wires towards the pin welding assembly;
the method is characterized in that: the automatic wire feeding assembly comprises a wire feeding mounting seat (1) which is fixedly arranged on the rack in a screwed mode, an automatic cutting mechanism (2) and a linear module (3) which horizontally moves along the front-back direction are arranged on the wire feeding mounting seat (1), a movable mounting seat (4) is arranged at the driving end of the linear module (3), and an automatic wire clamping mechanism (5) located on the front end side of the automatic cutting mechanism (2) is arranged on the movable mounting seat (4);
the automatic wire clamping mechanism (5) comprises a wire clamping mounting frame (51) arranged at the front end part of the movable mounting seat (4), the wire clamping mounting frame (51) is provided with a fixed wire clamping block (52) and a movable wire clamping block (53), the fixed wire clamping block (52) is screwed and fixed on the wire clamping mounting frame (51), and the fixed wire clamping block (52) is provided with a wire passing groove (521) which is open towards the side of the movable wire clamping block (53) and completely penetrates in the front and at the back; the wire clamping mounting frame (51) is provided with a wire clamping driving cylinder (54) which horizontally moves left and right corresponding to the movable wire clamping block (53), and the wire clamping driving cylinder (54) is in driving connection with the movable wire clamping block (53);
when the fixed wire clamping block (52) and the movable wire clamping block (53) are closed, the movable wire clamping block (53) is inserted into the wire passing groove (521) of the fixed wire clamping block (52).
2. The automatic wire feeding device for the pin welding machine according to claim 1, wherein: the automatic cutting mechanism (2) comprises a movable swing arm (21), and the movable swing arm (21) is hinged to the wire feeding mounting seat (1) through a pivot;
one end part of the movable swing arm (21) is fixedly provided with a threading sleeve (22) positioned at the rear end side of the fixed wire clamping block (52), and a sleeve through hole (221) which is completely penetrated through from front to back is formed in the core part of the threading sleeve (22); the wire feeding mounting seat (1) is provided with a swing arm driving cylinder (23) corresponding to the movable swing arm (21), and the extending end part of a piston rod of the swing arm driving cylinder (23) is in driving connection with the other end part of the movable swing arm (21);
the thread feeding mounting seat (1) is provided with a cutting blade (24) which is contacted with the front end surface of the threading sleeve (22) and is positioned beside the opening at the front end of the sleeve through hole (221) in a threaded manner.
3. The automatic wire feeding device for the pin welding machine according to claim 1, wherein: the extension end part of a piston rod of the wire clamping driving cylinder (54) is connected with a wire clamping driving shaft (55) horizontally extending along the left-right direction, and the movable wire clamping block (53) is screwed and fastened at the end part of the wire clamping driving shaft (55);
the wire clamping mounting frame (51) is provided with a driving shaft guide sleeve (56) corresponding to the wire clamping driving shaft (55), and the wire clamping driving shaft (55) penetrates through a center hole of the driving shaft guide sleeve (56).
4. The automatic wire feeding device for the pin welding machine according to claim 1, wherein: the fixed thread clamping block (52) is provided with a nitrogen nozzle (6).
5. The automatic wire feeding device for the pin welding machine according to claim 1, wherein: the wire feeding mounting seat (1) is provided with at least two wire blocks (7) which are sequentially arranged from front to back at intervals on the rear end side of the automatic cutting mechanism (2), and each wire block (7) is provided with a wire hole (71) which is completely penetrated in the front and back and is used for passing through a copper wire.
6. The automatic wire feeding device for the pin welding machine according to claim 1, wherein: the movable mounting seat (4) is provided with a linear guide rail (81) horizontally extending along the front-back direction in a threaded manner, the wire clamping mounting frame (51) is provided with a linear sliding block (82) in a threaded manner corresponding to the linear guide rail (81), and the linear guide rail (81) is matched with the linear sliding block (82) to form a guide pair structure;
a fine adjustment mechanism (9) is arranged between the movable mounting seat (4) and the wire clamping mounting rack (51).
7. The automatic wire feeding device for the pin welding machine according to claim 6, wherein: the fine adjustment mechanism (9) comprises a micrometer (91) installed on the movable installation seat (4), and a screw rod of the micrometer (91) is connected with the wire clamping installation frame (51).
8. The automatic wire feeding device for the pin welding machine according to claim 7, wherein: fine tuning guide sleeves (92) are installed on the movable installation seat (4), fine tuning guide pillars (93) extending along the front and rear directions are installed on the wire clamping installation frame (51) corresponding to the fine tuning guide sleeves (92), and the fine tuning guide pillars (93) are embedded in central holes of the fine tuning guide sleeves (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221669445.5U CN217475185U (en) | 2022-07-01 | 2022-07-01 | Automatic wire feeding device for pin welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221669445.5U CN217475185U (en) | 2022-07-01 | 2022-07-01 | Automatic wire feeding device for pin welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217475185U true CN217475185U (en) | 2022-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221669445.5U Active CN217475185U (en) | 2022-07-01 | 2022-07-01 | Automatic wire feeding device for pin welding machine |
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| Country | Link |
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| CN (1) | CN217475185U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117831936A (en) * | 2023-12-13 | 2024-04-05 | 东莞市神特自动化设备有限公司 | Automatic paint removal and tin coating sleeve forming machine for pins of new energy magnetic ring electric pole |
| CN117831936B (en) * | 2023-12-13 | 2024-05-28 | 东莞市神特自动化设备有限公司 | Automatic paint removal and tin coating sleeve forming machine for pins of new energy magnetic ring electric pole |
-
2022
- 2022-07-01 CN CN202221669445.5U patent/CN217475185U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117831936A (en) * | 2023-12-13 | 2024-04-05 | 东莞市神特自动化设备有限公司 | Automatic paint removal and tin coating sleeve forming machine for pins of new energy magnetic ring electric pole |
| CN117831936B (en) * | 2023-12-13 | 2024-05-28 | 东莞市神特自动化设备有限公司 | Automatic paint removal and tin coating sleeve forming machine for pins of new energy magnetic ring electric pole |
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