CN219106013U - Relay magnetic gap accurate positioning jig - Google Patents
Relay magnetic gap accurate positioning jig Download PDFInfo
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- CN219106013U CN219106013U CN202223481280.1U CN202223481280U CN219106013U CN 219106013 U CN219106013 U CN 219106013U CN 202223481280 U CN202223481280 U CN 202223481280U CN 219106013 U CN219106013 U CN 219106013U
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Abstract
The utility model discloses a precise positioning jig for a magnetic gap of a relay, which is used for assembling an assembly component, wherein the assembly component comprises a push rod component, a plate surface part, a static iron core, a spring component and a movable iron core, and the positioning jig comprises a lower supporting component, an upper limiting component arranged on the lower supporting component and a middle limiting block pressed between the lower supporting component and the upper limiting component; the lower support assembly is provided with a first support plane for supporting the bottom of the push rod assembly and a second support plane for supporting the top of the plate, the middle limiting block is provided with a limiting sleeve for limiting the coaxiality of the static iron core and the movable iron core, and the upper limiting assembly is provided with an upper pressing block for pressing the top of the plate and an upper pressing plate for pressing the top of the movable iron core. The utility model can accurately control and hold the magnetic gap, and can ensure the accuracy of the magnetic gap even after the movable iron core is welded.
Description
Technical Field
The utility model relates to the technical field of relay assembly, in particular to a precise positioning jig for a magnetic gap of a relay.
Background
The high-voltage direct-current relay is widely used in the industries of automobiles, solar energy, wind energy, charging piles, energy storage systems, industrial automation and the like in new energy industry, and realizes power protection, automatic control, measurement, communication and the like. The high-voltage direct-current relay is provided with a ceramic component which is a core component and is an arc extinguishing cavity for switching on and off current, and key electrical performance parameters of the relay product are determined.
The ceramic assembly is shown in fig. 1, and includes a push rod assembly 201, a shield 202, a pole piece assembly 203, a spring member 204 and a movable iron core 205, wherein the distance between the movable iron core 205 and the pole piece assembly 203 on the push rod assembly 201 is required to be strictly controlled to meet the electrical performance requirement.
In the prior art, when assembling the ceramic assembly, the push rod assembly 201 is put into the positioning jig with the rod portion facing upwards, then the shielding cover 202 is put into the push rod assembly 201, then the magnetic pole piece assembly 203 and the spring piece 204 are put into the end face of the static iron core 2032 of the magnetic pole piece assembly 203 to limit the distance between the static iron core 2032 and the movable iron core 205, finally the movable iron core 205 is put into the push rod assembly 201, the end face of the movable iron core 205 is held by pressing, and then argon arc welding is performed by using an argon arc welding device, so that the movable iron core 205 is fixedly connected with the push rod assembly 201, and the ceramic assembly is obtained, wherein the distance between the movable iron core 205 and the static iron core 2032 is the magnetic gap; after the welding is finished, the limiting piece is pulled out of the ceramic component manually.
The above-described way of limiting the magnetic gap has the following disadvantages:
1) The limiting piece is manually operated, and the limiting piece has a certain offset due to different methods for placing the limiting piece by personnel, so that the positioning error is large;
2) When the limiting piece is pulled out after welding, certain friction is generated between the limiting piece and the end face of the movable iron core and the end face of the static iron core, so that the contact surface of the limiting piece is worn to different degrees, and the limiting piece is inaccurate in magnetic gap limitation when being used continuously after a certain period of use;
3) Before the movable iron core is welded and produced, the ceramic component assembled by the limiting piece needs to be taken and moved, and the limiting piece is possibly loosened in the process, so that the accuracy of limiting the magnetic gap is affected;
4) The movable iron core and the magnetic pole piece are not restrained and limited in perpendicularity, so that the movable iron core can be inclined after being welded.
Therefore, it is necessary to provide a new accurate positioning fixture for magnetic gaps of relays to solve the above technical problems.
Disclosure of Invention
The utility model mainly aims to provide a relay magnetic gap accurate positioning jig which can accurately control and hold a magnetic gap and can ensure the accuracy of the magnetic gap even after a movable iron core is welded.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a accurate positioning jig of relay magnetic gap, its is acted on the equipment including assembly part, assembly part includes push rod subassembly, plate face, quiet iron core, spring spare and moves the iron core, positioning jig includes lower support assembly, sets up the last spacing subassembly on the lower support assembly and is held by being pressed down between support assembly and the last spacing subassembly middle stopper; the lower support assembly is provided with a first support plane for supporting the bottom of the push rod assembly and a second support plane for supporting the top of the plate, the middle limiting block is provided with a limiting sleeve for limiting the coaxiality of the static iron core and the movable iron core, and the upper limiting assembly is provided with an upper pressing block for pressing the top of the plate and an upper pressing plate for pressing the top of the movable iron core.
Compared with the prior art, the accurate positioning jig for the magnetic gap of the relay has the beneficial effects that: the first support plane limits the bottom position of the push rod assembly, the second support plane limits the bottom position of the plate surface of the magnetic pole piece assembly, and the upper surface of the plate surface is pressed by the upper pressing block, so that the height position of the plate surface is limited to be dead and is limited to be at a uniform height position; the height position of the push rod assembly is limited at the same time of the height position limitation of the plate surface; then the top end of the movable iron core is pressed and held by an upper pressing plate on the upper limiting assembly by taking the movable iron core as a reference, the height position of the top end of the movable iron core is limited, and under the action of the elastic piece, the distance between the movable iron core and the static iron core below the movable iron core is accurately controlled and held, so that the accurate control of the magnetic gap is realized; in addition, through the setting of middle stopper, move iron core and quiet iron core under limit sleeve's constraint, on the one hand both axiality has been ensured, and on the other hand, the straightness that hangs down of both axes has also been ensured, and then has ensured to move the iron core and can not take place askew for push rod subassembly after the welding.
Drawings
FIG. 1 is a schematic diagram of an exploded construction of a ceramic assembly;
FIG. 2 is a schematic diagram of an exploded structure of an embodiment of the present utility model;
FIG. 3 is a schematic diagram of the cooperation structure of the upper limit component, the middle limit component and the lower support component in the embodiment of the utility model;
FIG. 4 is a schematic view of an exploded view of a lower support assembly according to an embodiment of the present utility model;
FIG. 5 is a schematic cross-sectional view of an embodiment of the present utility model;
the reference numerals are:
100-accurate positioning jig for magnetic gaps of relays;
200-ceramic components, 201-push rod components, 202-shielding cases, 203-magnetic pole piece components, 2031-plate faces, 2032-static iron cores, 204-spring components and 205-movable iron cores;
1-lower support assembly, 11-first support plane, 12-second support plane, 13-first receiving slot, 14-floating support block, 15-second receiving slot, 16-third support plane, 17-third receiving slot, 171-limiting side inner walls, 18-first positioning columns, 19-second positioning columns, 110-magnetic attraction pieces, 111-bottom plates, 112-support plates, 113-third positioning columns and 114-third positioning holes;
2-an intermediate limiting block, 21-a limiting sleeve and 22-a second positioning hole;
the welding device comprises a 3-upper limiting assembly, a 31-upper pressing block, a 32-upper pressing plate, a 33-first positioning hole and a 34-welding avoidance hole.
Detailed Description
Referring to fig. 1-5, the present embodiment is a precise positioning fixture 100 for magnetic gap of a relay, which is used for assembling assembly components (in this embodiment, ceramic assemblies 200), maintaining the assembly state of the ceramic assemblies 200, and then precisely positioning and maintaining the ceramic assemblies 200 in a welding process. The assembly member includes a push rod assembly 201, a shield 202, a pole piece assembly 203, a spring member 204, and a moving iron core 205, and the pole piece assembly 203 includes a plate surface portion 2031 and a stationary iron core 2032 fixed to the underside of the plate surface portion 2031.
In this embodiment, the terms of orientation, such as bottom, top, underside, upper side, bottom end, and top end, for each part in the ceramic assembly 200 are all in the inverted state of the ceramic assembly 200, in the inverted state of the ceramic assembly 200; the bottom of the push rod assembly 201 is a planar structure, the rod-shaped portion of the push rod assembly faces upwards, and the shielding case 202, the magnetic pole piece assembly 203, the spring member 204 and the movable iron core 205 are sequentially stacked on the upper side of the push rod assembly 201 and sleeved on the rod-shaped portion.
The positioning jig 100 of the embodiment comprises a lower supporting component 1, a middle limiting block 2 and an upper limiting component 3; the upper limit component 3 is located on the lower support component 1, and the middle limit block 2 is clamped between the lower support component 1 and the upper limit component 3; the lower support assembly 1 has a first support plane 11 for supporting the bottom of the push rod assembly 201 and a second support plane 12 for supporting the top end of the movable iron core 205, the middle stopper 2 has a stopper sleeve 21 for limiting the coaxiality of the stationary iron core 2032 and the movable iron core 205, and the upper stopper assembly 3 has an upper pressing block 31 for pressing the top end of the movable iron core 205 and an upper pressing block 32 for pressing the top end of the movable iron core 205.
The first support plane 11 restricts the position of the bottom of the push rod assembly 201, the second support plane 12 restricts the bottom of the plate surface 2031 in the pole piece assembly 203, and the upper surface of the plate surface 2031 is pressed by the upper pressing block 31, and at this time, the height position of the plate surface 2031 is restricted to be dead and is restricted to be at a uniform height position; while the height position of the plate face 2031 is defined, the height position of the push rod assembly 201 is also defined; then the top end of the movable iron core 205 is pressed and held by the upper pressing plate 32 on the upper limiting component 3 by taking the upper pressing plate as a reference, the height position of the top end of the movable iron core 205 is limited, and under the action of the elastic piece 4, the distance between the movable iron core 205 and the static iron core 2032 below the movable iron core 205 is accurately controlled and held, so that the accurate control of the magnetic gap is realized; in addition, through the setting of middle stopper 2, move iron core 205 and quiet iron core 2032 under the restraint of limit sleeve 21, on the one hand both axiality has been ensured, and on the other hand, the straightness that hangs down of both axes has also been ensured, and then has ensured that move iron core 205 can not take place askew relative push rod assembly 201 after the welding.
The lower support assembly 1 is provided with a first receiving groove 13 for receiving a main body portion of the push rod assembly 201, and the first support plane 11 is disposed in the first receiving groove 13. In this embodiment, in order to prevent the ceramic component 200 from being pressed down to damage the component without accurate alignment during the assembly process of the ceramic component 200, the bottom of the first receiving groove 13 is provided with a floating support block 14 that elastically floats up and down. In an embodiment, the upper surface of the floating support block 14 may directly form the first support plane 11. In other embodiments, the bottom of the first receiving groove 13 and the upper surface of the floating support block 14 may together form the first support plane 11 when the floating support block 14 is pressed down to be flush with the bottom of the first receiving groove 13.
The lower support assembly 1 is further provided with a second receiving groove 15 for receiving the shielding case 202, and a third support plane 16 for limiting the bottom position of the shielding case 202 is formed at the bottom of the second receiving groove 15.
The lower support assembly 1 is further provided with a third receiving groove 17 for receiving the plate surface 2031 of the pole piece assembly 203, and the bottom of the third receiving groove 17 forms the second support plane 12. The third storage groove 17 has a stopper side inner wall 171 that defines the position around the plate surface 2031. The third storage groove 17 may be contoured according to the plate surface 2031.
The lower support assembly 1 is provided with at least one pair of first positioning posts 18, and the upper limit assembly 3 is provided with first positioning holes 33 which are matched with the first positioning posts 18 for positioning. When the upper limit assembly 3 is pressed down to be matched with the lower support assembly 1, accurate alignment can be realized through the matching of the first positioning column 18 and the first positioning hole 33.
The lower support assembly 1 is provided with at least one pair of second positioning columns 19, and the middle limiting block 2 is provided with a second positioning hole 22 which is matched with the second positioning columns 19 for positioning. Through the arrangement of the second positioning column 19 and the second positioning hole 22, the quick positioning of the middle limiting block 12 can be realized.
The respective surfaces of the lower supporting component 1 and the upper limiting component 3, which are contacted with each other, are provided with magnetic attraction pieces 110 which are attracted with each other. After the lower support component 1 and the upper limit component 3 are clamped, the lower support component 1 and the upper limit component 3 can be kept in a clamping state, the magnetic gap is kept to be continuously controlled, even if the subsequent ceramic component 200 moves from the assembly position to the welding position, the position of the components in the ceramic component 200 can not be generated, the assembly state is always kept, and the stability and the precision of the magnetic gap are further ensured; in this embodiment, the magnetic attraction members 110 on the respective surfaces of the supporting member 1 and the upper limiting member 3 are all magnet blocks, and in other embodiments, the respective surfaces of the supporting member 1 and the upper limiting member 3 can be the respective surfaces, one surface being a magnet block and the other surface being a magnetic metal.
In this embodiment, the lower support assembly 1 includes a bottom plate 111 and a detachable support plate 112 disposed on the bottom plate 111, a third positioning column 113 is disposed on the support plate 112, and a third positioning hole 114 matched with the third positioning column 113 is disposed on the bottom plate 111, so as to realize quick replacement of the support plate 112 to match with ceramic assemblies 200 with different specifications and sizes.
In order to facilitate the subsequent welding operation of the ceramic assembly 200, the upper platen 32 is further provided with a welding relief hole 34 exposing the rod portion of the push rod assembly 201.
In order to facilitate the rapid assembly of the positioning fixture 100 of the present embodiment into the welding apparatus for subsequent welding operations, positioning holes (not labeled in the drawings) for rapid positioning with the welding apparatus are further provided on the bottom plate 111 of the lower support assembly 1.
When in use, firstly, the push rod assembly 201 is put into the first accommodating groove 13 in an inverted state, at this time, the bottom of the push rod assembly 201 is located on the floating support block 14, then the shielding cover 202 is arranged on the push rod assembly 201, at this time, the shielding cover 202 is located in the second accommodating groove 15; then, the pole piece assembly 203 is mounted on the push rod assembly 201, and the plate surface 2031 of the pole piece assembly 203 is located in the third receiving groove 17, and a certain gap can exist between the pole piece assembly and the second supporting plane 12; then the middle limiting block 2 is placed on the lower supporting component 1, and quick positioning is realized through corresponding positioning holes and positioning columns, and at the moment, the static iron core 2031 is positioned in the limiting sleeve 21; the elastic piece 204 is arranged on the push rod assembly 201, and finally the movable iron core 204 is arranged in the limit sleeve 21 and sleeved on the rod-shaped part of the push rod assembly 201; after the components are arranged, the upper limit assembly 3 and the lower support assembly 1 are assembled, and are matched with the positioning columns through the corresponding positioning holes to realize quick positioning, at the moment, the upper pressing block 31 presses the plate surface portion 2031 to be clung to the second support plane 12, meanwhile, the plate surface portion 2031 presses the bottom of the push rod assembly 201 to be clung to the first support plane 11, the upper pressing plate 32 presses the top end of the movable iron core 204, and the control of the magnetic gap is automatically completed along with the assembly of the assemblies; under the action of the magnet block 110, the upper limit assembly 3 and the lower support assembly 1 keep a die-closing state, and simultaneously keep a pressing and positioning state of the ceramic assembly 200; the welding station can be directly taken to carry out welding operation.
What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.
Claims (10)
1. The utility model provides a accurate location tool in relay magnetic gap, its action includes the equipment of assembly part, assembly part includes push rod subassembly (201), face portion (2031), quiet iron core (2032), spring piece (204) and moves iron core (205), its characterized in that: the positioning jig comprises a lower supporting component (1), an upper limiting component (3) arranged on the lower supporting component (1) and a middle limiting block (2) pressed between the lower supporting component (1) and the upper limiting component (3); the lower support assembly (1) is provided with a first support plane (11) for supporting the bottom of the push rod assembly (201) and a second support plane (12) for supporting the plate surface (2031), the middle limiting block (2) is provided with a limiting sleeve (21) for limiting coaxiality of the static iron core (2032) and the movable iron core (205), and the upper limiting assembly (3) is provided with an upper pressing block (31) for pressing the plate surface (2031) and an upper pressing plate (32) for pressing the top end of the movable iron core (205).
2. The relay magnetic gap precise positioning jig of claim 1, wherein: the lower support assembly (1) is provided with a first storage groove (13) for storing the main body part of the push rod assembly (201), and the first support plane (11) is arranged in the first storage groove (13).
3. The relay magnetic gap precise positioning jig of claim 2, wherein: the bottom of the first storage groove (13) is provided with a floating support block (14) which elastically floats up and down.
4. The relay magnetic gap precise positioning jig of claim 3, wherein: the first supporting plane (11) is the upper surface of the floating supporting block (14) or a plane formed by the upper surface of the floating supporting block (14) and the groove bottom of the first accommodating groove (13).
5. The relay magnetic gap precise positioning jig of claim 1, wherein: the assembly part further comprises a shielding cover (202), a second storage groove (15) for storing the shielding cover (202) is formed in the lower support assembly (1), and a third support plane (16) for limiting the bottom position of the shielding cover (202) is formed in the bottom of the second storage groove (15).
6. The relay magnetic gap precise positioning jig of claim 1, wherein: the lower support assembly (1) is provided with a third storage groove (17) for storing the plate surface (2031), and the bottom of the third storage groove (17) forms the second support plane (12).
7. The relay magnetic gap precise positioning jig of claim 6, wherein: the third storage groove (17) has a limit side inner wall (171) that defines the position around the plate surface (2031).
8. The relay magnetic gap precise positioning jig of claim 1, wherein: at least one pair of first positioning columns (18) are arranged on the lower supporting component (1), and first positioning holes (33) matched with the first positioning columns (18) are formed in the upper limiting component (3); the lower support assembly (1) is provided with at least one pair of second positioning columns (19), and the middle limiting block (2) is provided with second positioning holes (22) matched with the second positioning columns (19) for positioning.
9. The relay magnetic gap precise positioning jig of claim 1, wherein: the lower supporting component (1) and the upper limiting component (3) are respectively provided with magnetic attraction pieces (110) which are attracted to each other on the respective surfaces.
10. The relay magnetic gap precise positioning jig of claim 1, wherein: the upper pressing plate (32) is provided with a welding avoidance hole (34) exposing a rod-shaped part in the push rod assembly (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223481280.1U CN219106013U (en) | 2022-12-26 | 2022-12-26 | Relay magnetic gap accurate positioning jig |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223481280.1U CN219106013U (en) | 2022-12-26 | 2022-12-26 | Relay magnetic gap accurate positioning jig |
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| CN219106013U true CN219106013U (en) | 2023-05-30 |
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| CN202223481280.1U Active CN219106013U (en) | 2022-12-26 | 2022-12-26 | Relay magnetic gap accurate positioning jig |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116884809A (en) * | 2023-09-01 | 2023-10-13 | 苏州猎奇智能设备有限公司 | High-voltage relay assembly equipment and assembly method |
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2022
- 2022-12-26 CN CN202223481280.1U patent/CN219106013U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116884809A (en) * | 2023-09-01 | 2023-10-13 | 苏州猎奇智能设备有限公司 | High-voltage relay assembly equipment and assembly method |
| CN116884809B (en) * | 2023-09-01 | 2023-12-08 | 苏州猎奇智能设备有限公司 | High-voltage relay assembly equipment and assembly method |
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