Automatic tin immersion mechanism for transformer and transformer production line comprising same

Abstract

The invention provides an automatic tin dipping mechanism for a transformer and a transformer production line comprising the same, and solves the problems that in the existing transformer tin dipping operation, a clamping structure is single, and pins at the bottoms of adjacent transformers are easily interfered with each other due to group type clamping, and according to the main scheme, the automatic tin dipping mechanism comprises a bottom table and a material moving track, a feeding assembly, a middle table, a lifting assembly and a tin dipping assembly are sequentially fixed to the bottom table in the rail direction of the material moving rail, the feeding assembly is used for clamping transformers on an external linear rail to a feeding rail through a pneumatic clamping jaw, and then a plurality of transformers are divided into a group at the tail end of the feeding rail at equal intervals through a material dividing piece and correspond to the lifting assembly in a servo mode. The material lifting assembly moves in a servo mode through the material moving track and correspondingly clamps one of the grouped transformers at the tail end of the feeding track through a plurality of servo-driven blade sets. The tin immersion assembly comprises a heat source, a tin bath and a lifting piece, and the lifting piece is used for driving the tin bath to be away from or close to the heat source so as to heat tin water.

Description

Technical Field

[0001] The invention relates to the technical field of transformer tinning equipment, and in particular to an automatic tinning mechanism for a transformer and a transformer production line comprising the same. Background Art

[0002] Tinning is a method for rust and corrosion prevention of electronic equipment, and is often used in the manufacturing process of transformers. The principle of tinning is to immerse transformer components (such as iron core, winding, etc.) in molten tin liquid, so that the tin liquid is deposited on the surface of the components to form a protective film.

[0003] For the manufacturing process of transformers, tin dipping is generally performed on the exposed pins of the transformer for sealing and protection. However, most of the existing tin dipping equipment directly clamps multiple transformers into a tin bath in groups by pneumatic grippers, and then wraps and coats them. However, in this way, the pins of transformers in adjacent positions in groups are prone to interfere with each other, and the subsequent tin dipping is prone to condensation of the tin liquid and easy to stick together, affecting the subsequent transformer finished product process. For this reason, we propose an automatic tin dipping mechanism for transformers and a transformer production line including the same to solve the above problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art. The present invention proposes an automatic tinning mechanism for transformers and a transformer production line including the same, which can ensure that the transformers are tinned in groups while avoiding the problem of interference between the bottom pins of the ringing transformers.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an automatic tinning mechanism for transformers, comprising: a base and a material transfer track mounted on the base, wherein the base is fixed with a feeding assembly, a middle table, a material lifting assembly and a tinning assembly in sequence along the material transfer track.

[0006] The feeding assembly comprises a feeding track arranged perpendicular to the track direction of the material transfer track, a pneumatic clamp servo-moved in the track direction of the feeding track, and a material dividing piece arranged at the end of the feeding track, wherein the pneumatic clamp is used to clamp the transformer on the external linear rail to the feeding track, and the material dividing piece is used to equidistantly separate a plurality of transformers into a group at the end of the feeding track and correspond to the servo of the material lifting assembly;

[0007] The material lifting assembly is servo-shifted by the material transfer track, and includes a slide table slidably connected to the material transfer track, a linear module fixed on the slide table and lifted and lowered at the height of the bottom table, and a clamping member located at the bottom end of the slide table, wherein the clamping member includes a plurality of servo-driven blade groups, and each blade group corresponds to clamping one of the grouped transformers at the end of the feed track;

[0008] The tin immersion assembly includes a heat source, a tin bath and a lifting member, wherein the tin bath is used to hold molten tin, and the lifting member is used to drive the tin bath away from or close to the heat source to increase the temperature of the molten tin, and the position and size of the tin bath correspond to the blade assembly;

[0009] The middle platform is fixed on the bottom platform, and a material tray is provided on the top of the middle platform to hold the transformer after tinning.

[0010] Furthermore, the feeding assembly also includes an outer frame, a first slide rail fixed on the outer frame and in the same direction as the material moving track, a first screw rod rotatably connected to the top of the outer frame, a first nut seat threadedly connected to the first screw rod, and a slide plate, the first screw rod is rotated by an external motor servo drive, the first nut seat passes through the outer frame through an extension part and is fixed to the slide plate, the slide plate is fixed with a second slide rail and a slide seat slidably connected to the second slide rail in the height direction of the outer frame, the top of the slide plate is fixed with a first cylinder to push the slide seat to slide up and down on the second slide rail, the clamp is driven by a clamping cylinder, and the clamping cylinder is connected and fixed to the slide seat.

[0011] Furthermore, the feed track includes a base, a pulley group and a belt, the belt is tensioned and covered on the pulley group, the pulley group is rotated by an external motor servo, the base is also fixed with strip blocks for limiting the transformer on both sides of the top of the corresponding belt, and the top of the base is also fixed with a square groove for wrapping the belt, the top of the square groove is open and the two ends of the inner wall of the opening are spaced apart from the belt, and the corresponding intervals are used for embedding the bottom pins of the transformer.

[0012] Furthermore, the material dividing piece includes a plurality of magnetic sheets equidistantly arranged on the surface of the belt, the spacing between the magnetic sheets corresponds to the spacing between the blade groups, the magnetic sheets are used to magnetically fix the external transformer, and the base is also fixed with a contact sensor block near the end of the belt, and the contact sensor block is electrically connected to the feed track to achieve the positioning of the transformer after grouping.

[0013] Furthermore, the linear module includes a first motor, a second screw rod, a second nut seat, a third slide rail and an intermediate table. The first motor is fixed on the top of the slide table, and its output end is coaxially fixed with the second screw rod. The third slide rail is arranged at the height of the slide table. The second screw rod is rotatably connected to the slide table and is in the same direction as the third slide rail. The back of the intermediate table is threadedly engaged with the second screw rod through the second nut seat, and both ends of the second nut seat are slidably connected to the third slide rail.

[0014] Furthermore, the clamping member includes a second motor, a broken rod coupling, an isolation plate, a fourth slide rail, a gear and a rack. The second motor is fixedly connected to the intermediate table, and its output end passes through the isolation plate through a broken rod coupling and is coaxially fixed with the gear. The fourth slide rail includes two and is symmetrically fixed to the bottom of the isolation plate. Both ends of the fourth slide rail are symmetrically slidably connected with sliders. The rack includes two and is meshed at opposite ends on both sides of the gear. A misalignment plate is also fixed to the bottom of each rack, and the blade group is equidistantly fixed to the bottom of the misalignment plate.

[0015] Furthermore, each of the blade groups includes a first blade and a second blade, and the top of each of the second blades is connected to the bottom of the offset plate through a raised connecting portion, and the connecting portion is used to offset the first blade and the second blade in height.

[0016] Furthermore, the lifting member includes a second cylinder, a guide seat, a guide rod, a third cylinder, a connecting plate and a clamping plate. The guide rod is vertically slidably connected in the guide seat. The guide seat includes two and is arranged on both sides of the heat source. The output end of the second cylinder of one guide seat is fixed to one side of the tin bath through a connecting plate, and a support plate is fixed to the top of the second cylinder of the other guide seat. The third cylinder is connected and fixed to the top of the support plate, and its output end is connected and fixed to the clamping plate. The clamping plate can servo-press the side of the tin bath away from the connecting plate.

[0017] A transformer production line comprises the automatic tin-immersion mechanism for transformers as described above.

[0018] Compared with the prior art, the beneficial effects of the present invention include: using pneumatic clamps to clamp the transformers on the external linear rail to the feed track, and then using the dividing piece to equidistantly separate multiple transformers into a group at the end of the feed track and servo-correspond to the lifting component; the subsequent lifting component is shifted by the transfer track servo, and through multiple servo-driven blade groups, one of the grouped transformers at the end of the feed track is clamped respectively; finally, the tinning component is used for tinning, and while the tinning process remains in group, each transformer can be independently separated to ensure that the bottom pins will not interfere with each other during the clamping process and the tinning process, which is more conducive to the tinning sealing and processability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components. Among them:

[0020] Figure 1 The overall structure diagram of the tin immersion mechanism proposed according to one embodiment of the present invention is schematically shown;

[0021] Figure 2 A schematic diagram shows a front view of a tin-immersion mechanism according to an embodiment of the present invention;

[0022] Figure 3 A schematic diagram shows a top view of a tin immersion mechanism according to an embodiment of the present invention;

[0023] Figure 4 A schematic diagram shows an enlarged view of a local structure of a lifting member according to an embodiment of the present invention.

[0024] Numbers in the figure: 1, material transfer track; 2, bottom platform; 3, feeding assembly; 301, feeding track; 3011, base; 3012, pulley group; 3013, belt; 3014, strip block; 3015, square groove; 302, pneumatic clamp; 303, material dividing piece; 3031, magnetic suction sheet; 3032, contact sensor block; 304, outer frame; 305, first slide rail; 306, first screw rod; 307, first nut seat; 308, slide plate; 309, second slide rail; 310, slide seat; 311, first cylinder; 312, clamping cylinder; 4, middle platform; 401, material tray; 5, lifting assembly; 501, slide table; 502, linear module; 5021, first motor; 50 22. Second screw rod; 5023. Second nut seat; 5024. Third slide rail; 5025. Intermediate table; 503. Clamping member; 5031. Second motor; 5032. Broken rod coupling; 5033. Isolation plate; 5034. Fourth slide rail; 5035. Gear; 5036. Rack; 5037. Sliding block; 5038. Offset plate; 504. Blade assembly; 505. First blade; 506. Second blade; 507. Connecting part; 6. Tinning assembly; 601. Heat source; 602. Tin bath; 603. Lifting member; 6031. Second cylinder; 6032. Guide seat; 6033. Guide rod; 6034. Third cylinder; 6035. Connecting plate; 6036. Pressing plate. DETAILED DESCRIPTION

[0025] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction to the technical solution of the present invention.

[0026] According to one embodiment of the present invention, Figure 1-Figure 4 Shown.

[0027] For the overall structure, Figure 1As shown, the automatic tinning mechanism for transformers comprises: a base 2 and a material transfer track 1 mounted on the base 2, wherein a feeding assembly 3, a center table 4, a material lifting assembly 5 and a tinning assembly 6 are fixed in sequence on the base 2 along the material transfer track 1.

[0028] The feeding assembly 3 comprises a feeding track 301 arranged perpendicular to the track direction of the material transfer track 1, a pneumatic clamp 302 servo-moved in the track direction of the feeding track 301, and a material dividing piece 303 arranged at the end of the feeding track 301, wherein the pneumatic clamp 302 is used to clamp the transformer on the external linear rail to the feeding track 301, and the material dividing piece 303 is used to equidistantly separate multiple transformers into a group at the end of the feeding track 301 and servo-correspond to the material lifting assembly 5;

[0029] The material lifting assembly 5 is servo-shifted by the material transfer track 1, and includes a slide 501 slidably connected to the material transfer track 1, a linear module 502 fixed on the slide 501 and lifted and lowered at the height of the base 2, and a clamping member 503 located at the bottom of the slide 501, and the clamping member 503 includes a plurality of servo-driven blade groups 504, and each blade group 504 corresponds to clamping one of the grouped transformers at the end of the feeding track 301;

[0030] The tin immersion assembly 6 includes a heat source 601, a tin bath 602 and a lifting member 603. The tin bath 602 is used to hold molten tin. The lifting member 603 is used to drive the tin bath 602 away from or close to the heat source 601 to increase the temperature of the molten tin. The position and size of the tin bath 602 correspond to the blade assembly 504.

[0031] The middle platform 4 is fixed on the bottom platform 2, and a material tray 401 is provided on the top of the middle platform 4 to hold the transformer after tinning.

[0032] like Figure 2-Figure 4 As shown, specifically, in this embodiment, the feeding assembly 3 also includes an outer frame 304, a first slide rail 305 fixed on the outer frame 304 and in the same direction as the material transfer track 1, a first screw rod 306 rotatably connected to the top of the outer frame 304, a first nut seat 307 threadedly connected to the first screw rod 306, and a slide plate 308, the first screw rod 306 is driven to rotate by an external motor servo, the first nut seat 307 passes through the outer frame 304 through an extension portion and is fixed to the slide plate 308, the slide plate 308 is fixed with a second slide rail 309 and a slide seat 310 slidably connected to the second slide rail 309 at the height of the outer frame 304, the top of the slide plate 308 is fixed with a first cylinder 311 to push the slide seat 310 to slide up and down on the second slide rail 309, the pneumatic clamp 302 is driven by a clamping cylinder 312, and the clamping cylinder 312 is connected and fixed to the slide seat 310.

[0033] The above structure realizes the biaxial movement of the pneumatic clamp 302, that is, the docking operation between the feed track 301 and the external transformer production line is realized. The pneumatic clamp 302 can servo-clamp each transformer onto the feed track 301, and then move to the corresponding end to facilitate the subsequent clamping of the clamp 503.

[0034] Furthermore, the feed track 301 includes a base 3011, a pulley set 3012 and a belt 3013, the belt 3013 is tensionedly covered on the pulley set 3012, the pulley set 3012 is rotated by an external motor servo, the base 3011 is also fixed with strip blocks 3014 for limiting the transformer on both sides of the top of the corresponding belt 3013, the top of the base 3011 is also fixed with a square groove 3015 for wrapping the belt 3013, the top of the square groove 3015 is open and the two ends of the inner wall of the opening are spaced apart from the belt 3013, and the corresponding intervals are used to embed the bottom pins of the transformer.

[0035] Furthermore, the material dividing piece 303 includes a plurality of magnetic sheets 3031 equidistantly arranged on the surface of the belt 3013, the spacing between the magnetic sheets 3031 corresponds to the spacing between the blade groups 504, the magnetic sheets 3031 are used to magnetically fix the external transformer, and the base 3011 is also fixed with a contact sensor block 3032 at the end near the belt 3013, and the contact sensor block 3032 is electrically connected to the feed track 301 to realize the positioning of the transformers after grouping.

[0036] It can be seen that in order to realize the separate clamping and tinning of grouped transformers, each transformer needs to be pre-positioned in advance, and the spacing of the magnetic suction plates 3031 corresponds to the spacing of the blade group 504 to ensure that each transformer can be clamped and lifted by the blade group 504.

[0037] Furthermore, the linear module 502 includes a first motor 5021, a second screw rod 5022, a second nut seat 5023, a third slide rail 5024 and an intermediate table 5025. The first motor 5021 is fixed on the top of the slide 501, and its output end is coaxially fixed with the second screw rod 5022. The third slide rail 5024 is arranged at the height of the slide 501. The second screw rod 5022 is rotatably connected to the slide 501 and is in the same direction as the third slide rail 5024. The back of the intermediate table 5025 is threadedly matched with the second screw rod 5022 through the second nut seat 5023, and the two ends of the second nut seat 5023 are slidably connected to the third slide rail 5024.

[0038] The linear module 502 is used to realize the displacement of the transformer after clamping in the height direction of the base 2, that is, the height requirement of the tinning operation.

[0039] Similarly, the clamping member 503 includes a second motor 5031, a broken rod coupling 5032, an isolation plate 5033, a fourth slide rail 5034, a gear 5035 and a rack 5036. The second motor 5031 is fixedly connected to the intermediate table 5025, and its output end passes through the isolation plate 5033 through the broken rod coupling 5032 and is coaxially fixed with the gear 5035. The fourth slide rail 5034 includes two and is symmetrically fixed to the bottom of the isolation plate 5033. Both ends of the fourth slide rail 5034 are symmetrically slidably connected with sliders 5037. The rack 5036 includes two and is meshed with the opposite ends on both sides of the gear 5035. A misalignment plate 5038 is also fixed to the bottom of each rack 5036, and the blade group 504 is equidistantly fixed to the bottom of the misalignment plate 5038.

[0040] Furthermore, each of the blade groups 504 includes a first blade 505 and a second blade 506. The top of each of the second blades 506 is connected to the bottom of the offset plate 5038 via a raised connecting portion 507. The connecting portion 507 is used to offset the first blade 505 and the second blade 506 in height.

[0041] The raised connection portion 507 can avoid possible interference between the two blades when they are displaced relative to each other. By setting the spacing in advance, each blade group 504 can correspondingly clamp a transformer on the magnetic sheet 3031, which is convenient and reliable.

[0042] Furthermore, the lifting member 603 includes a second cylinder 6031, a guide seat 6032, a guide rod 6033, a third cylinder 6034, a connecting plate 6035 and a clamping plate 6036. The guide rod 6033 is vertically slidably connected to the guide seat 6032. The guide seat 6032 includes two and is arranged on both sides of the heat source 601. The output end of the second cylinder 6031 of one of the guide seats 6032 is fixed to one side of the tin bath 602 through a connecting plate 6035, and a support plate is fixed to the top of the second cylinder 6031 of the other guide seat 6032. The third cylinder 6034 is connected and fixed to the top of the support plate, and its output end is connected and fixed to the clamping plate 6036. The clamping plate 6036 can servo-press the side of the tin bath 602 away from the connecting plate 6035.

[0043] The temperature rise in the tin bath 602 is achieved through the lifting piece 603. The upward output of the second cylinder 6031 can drive the tin bath 602 away from the heat source 601 at the bottom to avoid excessive temperature rise. In order to further ensure the stability of the tinning process, a third cylinder 6034 and a clamping block are designed on the other side of the heat source 601. The clamping block realizes the hollow positioning of the tin bath 602 to avoid potential safety problems caused by shaking.

[0044] In general, the present invention uses a pneumatic clamp 302 to clamp the transformer on the external linear rail to the feed track 301, and then uses a material separator 303 to equidistantly separate multiple transformers into a group at the end of the feed track 301 and servo-correspond to the lifting component 5; the lifting component 5 is subsequently shifted by the servo of the material transfer track 1, and through multiple servo-driven blade groups 504, one of the grouped transformers at the end of the feed track 301 is clamped respectively; finally, the tinning component 6 is used for tinning. While the tinning process remains in group, each transformer can be independently separated to ensure that the pins at the bottom of the clamping process and the tinning process will not interfere with each other, which is more conducive to the tinning sealing and processability.

[0045] Likewise, a transformer production line including the automatic tin-immersion mechanism for transformers described above should also be within the protection scope of the present invention, which will not be described in detail here.

[0046] The technical scope of the present invention is not limited to the contents in the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. Automatic tinning mechanism for transformer, characterized in that: include: A base and a material transfer track mounted on the base, wherein the base is provided with a feeding assembly, a center table, a material lifting assembly and a tinning assembly fixed in sequence along the material transfer track. The feeding assembly comprises a feeding track arranged perpendicular to the track direction of the material transfer track, a pneumatic clamp servo-moved in the track direction of the feeding track, and a material dividing piece arranged at the end of the feeding track, wherein the pneumatic clamp is used to clamp the transformer on the external linear rail to the feeding track, and the material dividing piece is used to equidistantly separate a plurality of transformers into a group at the end of the feeding track and correspond to the servo of the material lifting assembly; The material lifting assembly is servo-shifted by the material transfer track, and includes a slide table slidably connected to the material transfer track, a linear module fixed on the slide table and lifted and lowered at the height of the bottom table, and a clamping member located at the bottom end of the slide table, wherein the clamping member includes a plurality of servo-driven blade groups, and each blade group corresponds to clamping one of the grouped transformers at the end of the feed track; The tin immersion assembly includes a heat source, a tin bath and a lifting member, wherein the tin bath is used to hold molten tin, and the lifting member is used to drive the tin bath away from or close to the heat source to increase the temperature of the molten tin, and the position and size of the tin bath correspond to the blade assembly; The middle platform is fixed on the bottom platform, and a material tray is provided on the top of the middle platform to hold the transformer after tinning.

2. The automatic tinning mechanism for transformer according to claim 1, characterized in that: The feeding assembly also includes an outer frame, a first slide rail fixed on the outer frame and in the same direction as the material moving track, a first screw rod rotatably connected to the top of the outer frame, a first nut seat threadedly connected to the first screw rod, and a slide plate. The first screw rod is driven to rotate by an external motor servo, the first nut seat passes through the outer frame through an extension part and is fixed to the slide plate, the slide plate is fixed with a second slide rail and a slide seat slidably connected to the second slide rail in the height direction of the outer frame, a first cylinder is fixed on the top of the slide plate to push the slide seat to slide up and down on the second slide rail, and the pneumatic clamp is driven by a clamping cylinder, and the clamping cylinder is connected and fixed to the slide seat.

3. The automatic tinning mechanism for transformer according to claim 2, characterized in that: The feeding track includes a base, a pulley group and a belt, the belt is tensioned and covered on the pulley group, and the pulley group is rotated by an external motor servo. The base is also fixed with strip blocks for limiting the transformer on both sides of the top of the corresponding belt, and the top of the base is also fixed with a square groove for wrapping the belt. The top of the square groove is open and the two ends of the inner wall of the opening are spaced apart from the belt, and the corresponding intervals are used for embedding the bottom pins of the transformer.

4. The automatic tinning mechanism for transformer according to claim 3, characterized in that: The material dividing piece includes a plurality of magnetic sheets equidistantly arranged on the surface of the belt, the spacing between the magnetic sheets corresponds to the spacing between the blade groups, the magnetic sheets are used to magnetically fix the external transformer, and a contact sensor block is also fixed to the base near the end of the belt, the contact sensor block is electrically connected to the feed track to realize the positioning of the transformer after grouping.

5. The automatic tinning mechanism for transformer according to claim 1, characterized in that: The linear module includes a first motor, a second screw rod, a second nut seat, a third slide rail and an intermediate table. The first motor is fixed on the top of the slide table, and its output end is coaxially fixed with the second screw rod. The third slide rail is arranged in the height direction of the slide table. The second screw rod is rotatably connected to the slide table and is in the same direction as the third slide rail. The back of the intermediate table is threadedly matched with the second screw rod through the second nut seat, and both ends of the second nut seat are slidably connected to the third slide rail.

6. The automatic tinning mechanism for transformer according to claim 1, characterized in that: The clamping part includes a second motor, a broken rod coupling, an isolation plate, a fourth slide rail, a gear and a rack. The second motor is fixedly connected to the intermediate table, and its output end passes through the isolation plate through a broken rod coupling and is coaxially fixed with the gear. The fourth slide rail includes two and is symmetrically fixed to the bottom of the isolation plate. Both ends of the fourth slide rail are symmetrically slidably connected with sliders. The rack includes two and is meshed at opposite ends on both sides of the gear. A misalignment plate is also fixed to the bottom of each rack, and the blade group is equidistantly fixed to the bottom of the misalignment plate.

7. The automatic tinning mechanism for transformer according to claim 6, characterized in that: Each of the blade groups includes a first blade and a second blade. The top of each of the second blades is connected to the bottom of the offset plate through a protruding connection portion. The connection portion is used to offset the first blade and the second blade in height.

8. The automatic tinning mechanism for transformer according to claim 1, characterized in that: The lifting member includes a second cylinder, a guide seat, a guide rod, a third cylinder, a connecting plate and a clamping plate. The guide rod is vertically slidably connected in the guide seat. The guide seat includes two and is arranged on both sides of the heat source. The output end of the second cylinder of one guide seat is fixed to one side of the tin bath through a connecting plate, and a support plate is fixed to the top of the second cylinder of the other guide seat. The third cylinder is connected and fixed to the top of the support plate, and its output end is connected and fixed to the clamping plate. The clamping plate can servo-press the side of the tin bath away from the connecting plate.

9. A transformer production line, characterized in that: The invention comprises the automatic tin dipping mechanism for transformers as described in any one of claims 1 to 8.

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