CN111613438B - Automatic assembly device and assembly method for insulating cushion block of dry-type transformer - Google Patents
Automatic assembly device and assembly method for insulating cushion block of dry-type transformer Download PDFInfo
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- CN111613438B CN111613438B CN202010612065.7A CN202010612065A CN111613438B CN 111613438 B CN111613438 B CN 111613438B CN 202010612065 A CN202010612065 A CN 202010612065A CN 111613438 B CN111613438 B CN 111613438B
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- cushion block
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- pressing plate
- voltage coil
- insulating
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000003825 pressing Methods 0.000 claims abstract description 71
- 230000007246 mechanism Effects 0.000 claims abstract description 69
- 125000006850 spacer group Chemical group 0.000 claims description 25
- 238000009413 insulation Methods 0.000 claims 1
- 239000003822 epoxy resin Substances 0.000 abstract description 8
- 229920000647 polyepoxide Polymers 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulating Of Coils (AREA)
Abstract
The invention discloses an automatic assembly device and an assembly method for an insulating cushion block of a dry-type transformer, and relates to the field of production equipment of epoxy resin dry-type transformers. The device comprises a platform positioning mechanism for accurately positioning high-voltage coils and low-voltage coils, a lower cushion block assembly mechanism and an upper cushion block assembly mechanism, wherein the lower cushion block assembly mechanism and the upper cushion block assembly mechanism are respectively used for assembling insulating cushion blocks at the upper end and the lower end of a transformer coil assembly; wherein, platform positioning mechanism includes: the device comprises an assembly platform, a push plate for adjusting the positions of high and low voltage coils and a driving mechanism for driving the push plate to move, wherein the middle part of the assembly platform is provided with a high and low voltage coil positioning line; the assembly method comprises the steps of sequentially pressing the insulating cushion blocks into the upper end and the lower end of the high-voltage coil and the lower end by means of the upper cushion block assembly mechanism and the lower cushion block assembly mechanism, and then sequentially controlling the auxiliary cylinder and the main cylinder in the upper cushion block assembly mechanism and the lower cushion block assembly mechanism to return. The invention can accurately position the high-voltage coil and the low-voltage coil, realize the automatic assembly of the insulating cushion block, has high assembly efficiency and improves the quality of finished transformers.
Description
Technical Field
The invention relates to the field of production equipment of epoxy resin dry-type transformers, in particular to an automatic assembly device and an assembly method for insulating cushion blocks of a dry-type transformer.
Background
The epoxy resin dry-type transformer is a dry-type transformer which adopts epoxy resin as insulating material to encapsulate coil, and after the high and low voltage windings are wound by copper strips (foils), the epoxy resin is used as insulating material to be poured and solidified in vacuum, thus forming the high and low voltage coils of high-strength glass fiber reinforced plastic body structure. The epoxy resin dry-type transformer has the advantages of good electrical performance, strong lightning impulse resistance, strong short circuit resistance, small volume, light weight, low cost and the like, and is increasingly widely applied in the transformer industry.
When the epoxy resin dry-type transformer operates, if the relative position between the low-voltage coil and the high-voltage coil is deviated, uneven stress of the winding in an electromagnetic field is caused, noise is easy to generate, and even breakdown occurs. To solve this problem, the current methods commonly used in the industry are: after the high-voltage coil is sleeved on the periphery of the low-voltage coil, a silica gel insulating cushion block is filled between the high-voltage coil and the low-voltage coil, and the high-voltage coil and the low-voltage coil are tightly supported by the insulating cushion block.
The high-voltage coil and the low-voltage coil are required to be sleeved together before the insulating cushion block is assembled, the uniform and consistent interval between the inner wall of the high-voltage coil and the outer wall of the low-voltage coil is ensured, and the existing method is as follows: the high-voltage coil and the low-voltage coil are sleeved together by manual adjustment, and then the positions of the high-voltage coil or the low-voltage coil are adjusted by means of measurement tools while measurement is carried out until the intervals around the high-voltage coil or the low-voltage coil meet the requirements. In this way, the efficiency is low, the labor intensity is high, the space uniformity between the high-voltage coil and the low-voltage coil is poor, and the difficulty of assembling the insulating cushion blocks subsequently is increased. In addition, at present, the insulating cushion block is generally assembled manually by adopting a manual operation, namely, the insulating cushion block is hammered between the high-voltage coil and the low-voltage coil by using a rubber hammer, so that the assembly efficiency is low, the labor intensity is high, and the space uniformity between the high-voltage coil and the low-voltage coil is difficult to ensure because the insulating cushion blocks around the insulating cushion block cannot be simultaneously assembled. Therefore, the finished transformer produced by the existing assembly mode has high noise and high breakdown failure rate.
Disclosure of Invention
Technical problem to be solved by the invention
Aiming at the problems that the matching distance around the high-voltage coil and the low-voltage coil is difficult to accurately control after the high-voltage coil is sleeved on the periphery of the low-voltage coil in the process of assembling the epoxy resin dry-type transformer at present so as to influence the assembly of an insulating cushion block and the quality of a finished transformer, the invention provides an automatic assembling device and an assembling method for the insulating cushion block of the dry-type transformer.
Technical proposal
In order to solve the problems, the technical scheme provided by the invention is as follows:
The utility model provides a dry-type transformer insulating pad automatic assembly device, includes platform positioning mechanism, platform positioning mechanism includes the equipment platform and sets up four push mechanism on the equipment platform, the equipment platform middle part has high, low pressure coil location line, four push mechanism pairwise symmetry distributes around the location line.
Further, the pushing mechanism comprises a pushing plate and a driving mechanism, the pushing plate is in sliding connection with the assembly platform, and the driving mechanism is connected to the pushing plate to drive the pushing plate to be close to or far away from the center of the positioning line.
Further, the transformer coil assembly assembling device further comprises a lower cushion block assembling mechanism and an upper cushion block assembling mechanism which are respectively used for assembling the upper and lower insulating cushion blocks of the transformer coil assembly, wherein the lower cushion block assembling mechanism is arranged below the assembling platform, and the upper cushion block assembling mechanism is arranged above the assembling platform.
Further, wherein:
the lower cushion block assembly mechanism comprises a lower main cylinder, a lower pressing plate and a plurality of lower cushion block clamping pieces, wherein the lower main cylinder is vertically upwards arranged below the assembly platform, the lower pressing plate is horizontally arranged at the upper end of a piston rod of the lower main cylinder, and the lower cushion block clamping pieces are positioned at the upper side of the lower pressing plate and correspond to preassembled positions of insulating cushion blocks at the lower end of the transformer coil assembly one by one;
the upper cushion block assembly mechanism comprises an upper main cylinder, an upper pressing plate and a plurality of upper cushion block clamping pieces, wherein the upper main cylinder is vertically downwards arranged above the assembly platform, the upper pressing plate is horizontally arranged at the lower end of a piston rod of the upper main cylinder, and the upper cushion block clamping pieces are positioned at the lower side of the upper pressing plate and correspond to preassembled positions of insulating cushion blocks at the upper end of the transformer coil assembly one by one;
the middle part of the assembly platform is provided with a plurality of lower cushion block holes which are in one-to-one correspondence with the lower cushion block clamping pieces.
Further, wherein:
The lower cushion block assembly mechanism further comprises a plurality of lower auxiliary cylinders which are in one-to-one correspondence with the lower cushion block clamping pieces, wherein the lower auxiliary cylinders are vertically upwards arranged at the lower side of the lower pressing plate, and the lower cushion block clamping pieces penetrate through the lower pressing plate and are fixed at the upper ends of piston rods of the lower auxiliary cylinders;
The upper cushion block assembly mechanism further comprises a plurality of upper auxiliary cylinders which are in one-to-one correspondence with the upper cushion block clamping pieces, the upper cushion block clamping pieces are arranged on the upper side of the upper pressing plate vertically downwards, and the upper cushion block clamping pieces penetrate through the upper pressing plate and are fixed at the upper ends of piston rods of the upper auxiliary cylinders.
Further, the lower auxiliary cylinder and the upper auxiliary cylinder are arranged to act synchronously.
Further, the bracket is fixed on the lower side of the assembly platform and comprises a lower supporting plate and a plurality of connecting rods, wherein the lower supporting plate is horizontally arranged, the connecting rods are vertically fixed on the upper side of the lower supporting plate, the upper ends of the connecting rods penetrate through the lower pressing plate and are fixedly connected with the lower side face of the assembly platform, the lower pressing plate is in movable fit with the connecting rods, and the lower main air cylinder is fixed on the upper side of the lower supporting plate.
Further, a hanging bracket is arranged above the assembly platform and comprises a horizontally arranged upper supporting plate and a hanging arm fixed on the upper supporting plate, and the upper main cylinder is fixed on the lower side of the upper supporting plate; a plurality of vertical guide rods are fixed on the upper pressing plate, and the upper ends of the guide rods penetrate through the upper supporting plate and are in movable fit with the upper supporting plate.
Further, wherein:
the lower pressing plate is provided with cushion block dragging tables which are matched with the lower cushion block inlets one by one;
The upper pressing plate is provided with a yielding hole for the outgoing line of the low-voltage coil to pass through.
A method for assembling an insulating cushion block by using the automatic assembling device of the insulating cushion block of the dry-type transformer comprises the following steps:
I, starting an upper main cylinder to push an upper pressing plate to move downwards, and simultaneously forcibly pressing an insulating cushion block in an upper cushion block clamping piece into a fit gap between the upper ends of a low-voltage coil and a high-voltage coil until the lower end face of the upper pressing plate presses the upper ends of the high-voltage coil and the low-voltage coil;
II, starting a lower main cylinder to push a lower pressing plate to move upwards, and forcibly pressing an insulating cushion block in a lower cushion block clamping piece into a fit gap between the lower ends of the low-voltage coil and the high-voltage coil;
III, simultaneously starting a lower auxiliary cylinder and an upper auxiliary cylinder, and respectively driving the lower cushion block clamping piece and the upper cushion block clamping piece to be separated from the insulating cushion block;
And IV, finally, simultaneously controlling the return stroke of the lower main cylinder and the upper main cylinder, so that the upper pressing plate of the lower pressing plate is simultaneously separated from the end part of the transformer coil assembly.
Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) The automatic assembly device for the insulating cushion block of the dry-type transformer can respectively push the low-voltage coil and the high-voltage coil which are biased to be just positioned in the corresponding positioning lines by utilizing the push plate, accurately position the high-voltage coil and the low-voltage coil, ensure the matching distance between the periphery of the high-voltage coil and the periphery of the low-voltage coil, further provide guarantee for the assembly of the subsequent insulating cushion block and further improve the quality of a finished transformer;
(2) The automatic assembly device for the insulating cushion blocks of the dry type transformer can replace manual operation to complete assembly of all the insulating cushion blocks at two ends of a transformer coil assembly at one time, so that the assembly labor intensity is reduced, the assembly efficiency is improved, meanwhile, the high-voltage coil and the low-voltage coil are prevented from moving relatively in the process of being pressed into the insulating cushion blocks, the consistency of fit gaps of the high-voltage coil and the low-voltage coil of the produced transformer is higher, and the noise and breakdown failure rate of the transformer are reduced;
(3) According to the automatic assembly device for the insulating cushion block of the dry-type transformer, the auxiliary cylinders for driving the upper cushion block clamping pieces and the lower cushion block clamping pieces to independently move are respectively arranged in the lower cushion block assembly mechanism and the upper cushion block assembly mechanism, so that the insulating cushion block is prevented from being dragged out of the upper end and the lower end of the transformer coil assembly by the lower cushion block clamping pieces and the upper cushion block clamping pieces, secondary assembly is further avoided, the assembly efficiency is further improved, and meanwhile, the assembly quality and consistency of finished products of the transformer coil assembly are guaranteed;
(4) According to the method for assembling the insulating cushion block of the dry-type transformer, the insulating cushion block is assembled by means of the assembling device, so that the automatic assembly of the insulating cushion block is realized, the assembling efficiency is high, and the quality of a finished transformer is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the device of the present invention;
FIG. 2 is a schematic view of the structure of the lower head block assembly mechanism and its carrier;
FIG. 3 is a schematic view of the structure of the upper pad assembly mechanism and its carrier;
FIG. 4 is a schematic diagram of a connection structure of the auxiliary cylinder and the pad holder;
FIG. 5 is a schematic view of the structure of the lower platen;
FIG. 6 is a schematic view of the structure of the upper platen;
FIG. 7 is a schematic diagram of a transformer coil assembly to which the present invention is applicable;
In the accompanying drawings: 1. a platform positioning mechanism; 11. assembling a platform; 111. a lower cushion block inlet hole; 112. a positioning line; 113. a guide rail groove; 12. a push plate; 13. a driving mechanism;
2. A lower cushion block assembly mechanism; 21. a lower main cylinder; 22. a lower pressing plate; 221. a lower clamping piece jack; 222. cushion block dragging platform; 23. a lower pad holder; 24. a lower auxiliary cylinder; 25. a lower auxiliary cylinder frame;
3. An upper pad assembly mechanism; 31. an upper main cylinder; 32. an upper press plate; 321. an upper clamping piece jack; 322. a relief hole; 33. an upper pad holder; 34. an upper auxiliary cylinder; 35. an upper auxiliary cylinder frame; 36. a guide rod;
4. a bracket; 41. a lower support plate; 42. a connecting rod;
5. A hanging bracket; 51. an upper supporting plate; 52. a suspension arm;
6. a transformer coil assembly; 61. a low voltage coil; 611. a low voltage coil lead-out wire; 62. a high voltage coil; 63. insulating cushion blocks; 631. a clamping groove.
Detailed Description
The following detailed description of the embodiments of the invention, given by way of example only, is presented in the accompanying drawings to aid in a more complete, accurate and thorough understanding of the concepts and aspects of the invention, and to aid in its practice, by those skilled in the art.
Example 1
The automatic assembling device for the insulating cushion block of the dry-type transformer in the embodiment, as shown in fig. 1, comprises a platform positioning mechanism 1, wherein the platform positioning mechanism 1 comprises an assembling platform 11 and four pushing mechanisms arranged on the assembling platform 11, the middle part of the assembling platform 11 is provided with a high-voltage coil positioning line 112 and a low-voltage coil positioning line 112 which are respectively used for positioning the positions of the low-voltage coil 61 and the high-voltage coil 62 on the assembling platform 11 so as to ensure that the matching intervals of the peripheries of the high-voltage coil and the low-voltage coil are the same, and the four pushing mechanisms are symmetrically distributed around the positioning line 112; the pushing mechanism comprises a pushing plate 12 and a driving mechanism 13, the pushing plate 12 is slidably connected with the assembling platform 11, and the driving mechanism 13 is connected to the pushing plate 12 to drive the pushing plate 12 to approach or separate from the center of the positioning line 112.
Specifically, as shown in fig. 1, the high-voltage coil positioning wires 112 and the low-voltage coil positioning wires 112 are distributed from inside to outside, and are located on the inner side corresponding to the outer edge of the lower end of the low-voltage coil 61, and are located on the outer side corresponding to the outer edge of the lower end of the high-voltage coil 62. The push plates 12 on the four pushing mechanisms are respectively arranged on the front direction, the rear direction, the left direction and the right direction outside the positioning line 112, the front and rear push plates 12 and the left and right push plates 12 are respectively symmetrically arranged, four groups of guide rail grooves 113 are formed in the assembling platform 11, each push plate 12 corresponds to one group of guide rail grooves 113, and the four push plates 12 are respectively connected with the corresponding guide rail grooves 113 in a sliding manner so as to improve the stability of movement of the push plates 12. Each push plate 12 is connected with one driving mechanism 13, the driving mechanism 13 drives the corresponding push plate 12 to approach or separate from the center of the positioning line 112, in this embodiment, the driving mechanism 13 is a cylinder horizontally mounted on the assembly platform 11, and the end of a piston rod of the cylinder is fixedly connected with the corresponding push plate 12.
The steps of positioning the high and low voltage coils using the platform positioning mechanism 1 in the present embodiment are:
i, vertically placing a low-voltage coil in the middle of an assembly platform 11, and pushing the low-voltage coil to a positioning line 112 right positioned in an inner ring by utilizing four push plates 12 at front, back, left and right;
II, sleeving the high-voltage coil outside the low-voltage coil, and pushing the high-voltage coil to the positioning wire 112 right positioned on the outer ring by using the front pushing plate 12, the back pushing plate 12, the left pushing plate 12 and the right pushing plate 12; care should be taken to avoid touching the low voltage coil when placing the high voltage coil.
The automatic assembling device for the insulating cushion block of the dry-type transformer in the embodiment can utilize the push plate 12 to push the low-voltage coil 61 and the high-voltage coil 62 which are biased to be just positioned in the corresponding positioning lines 112 respectively, accurately position the high-voltage coil and the low-voltage coil, ensure the matching distance between the periphery of the high-voltage coil and the periphery of the low-voltage coil, further provide guarantee for the subsequent assembling of the insulating cushion block 63, and further improve the quality of a finished transformer.
Example 2
An automatic assembling device for insulating spacer blocks of a dry-type transformer in this embodiment is suitable for assembling insulating spacer blocks 63 in a transformer coil assembly 6 shown in fig. 7, the transformer coil assembly 6 comprises a low-voltage coil 61, a high-voltage coil 62 and a plurality of insulating spacer blocks 63, the low-voltage coil 61 and the high-voltage coil 62 are sleeved together, and the insulating spacer blocks 63 are stuffed in gaps at the upper end and the lower end of the low-voltage coil 61 and the high-voltage coil 62.
As shown in fig. 1, the present mounting apparatus includes the platform positioning mechanism 1 described in embodiment 1, and further includes a lower pad mounting mechanism 2 and an upper pad mounting mechanism 3. As shown in fig. 1 and 2, the lower pad assembly mechanism 2 includes a lower main cylinder 21, a lower pressing plate 22 and a plurality of lower pad clamps 23, the lower main cylinder 21 is vertically upward arranged below the assembly platform 11, the lower pressing plate 22 is horizontally arranged at the upper end of a piston rod of the lower main cylinder 21, and the lower pad clamps 23 are positioned at the upper side of the lower pressing plate 22 and are in one-to-one correspondence with preassembled positions of insulating pads 63 at the lower end of the transformer coil assembly 6; as shown in fig. 1 and 3, the upper pad assembly mechanism 3 includes an upper main cylinder 31, an upper pressing plate 32 and a plurality of upper pad clamps 33, the upper main cylinder 31 is disposed vertically downward above the assembly platform 11, the upper pressing plate 32 is horizontally disposed at the lower end of a piston rod of the upper main cylinder 31, and the upper pad clamps 33 are disposed at the lower side of the upper pressing plate 32 and are in one-to-one correspondence with the preassembled positions of the upper insulating pads 63 of the transformer coil assembly 6. As shown in fig. 1, the middle part of the assembly platform 11 has a plurality of lower pad holes 111 corresponding to the lower pad holders 23 one by one for the insulating pad 63 clamped on the lower pad holder 23 to pass through. Note that, the pre-installation positions of the upper and lower insulating spacers 63 of the transformer coil assembly 6 refer to: after the high and low voltage coils are well positioned on the assembly platform 1, the insulating cushion blocks 63 are positioned at the assembly positions of the upper end and the lower end of the high and low voltage coils.
Specifically, as shown in fig. 1 to 3, the assembling platform 11 has four lower pad block holes 111, which correspond to the assembling positions of the four insulating pad blocks 63 on the front, rear, left and right sides of the lower end of the transformer coil assembly 6, respectively, lower pad block clamping members 23 which are matched with the four lower pad block holes 111 one by one are fixed on the upper side surface of the lower pressing plate 22, and the upper end of the piston rod of the lower main cylinder 21 is fixedly connected with the middle part of the lower side of the lower pressing plate 22; four upper cushion block clamping pieces 33 are fixed on the lower side surface of the upper pressing plate 32 and correspond to the positions of four insulating cushion blocks 63 on the front, back, left and right of the upper end of the transformer coil assembly 6 respectively, and the lower end of a piston rod of an upper main cylinder 31 is fixedly connected with the middle part of the upper side of the upper pressing plate 32; the lower pad clamping member 23 and the upper pad clamping member 33 are two parallel straight plates or straight rods, which are respectively fixed on the lower pressing plate 22 and the upper pressing plate 32, in this embodiment, two straight plates, and the two straight plates are matched with the clamping grooves 631 on two sides of the insulating pad 63 so as to stably clamp the insulating pad 63.
As shown in fig. 2, a bracket 4 is fixed on the lower side of the assembly platform 11 in this embodiment, the bracket 4 includes a horizontally arranged lower support plate 41 and a plurality of connecting rods 42 vertically fixed on the upper side of the lower support plate 41, the upper ends of the connecting rods 42 are fixedly connected with the lower side surface of the assembly platform 11, and the lower main cylinder 21 is fixed on the upper side of the lower support plate 41. The connecting rod 42 passes through the lower platen 22 and is movably matched with the lower platen 22, and the connecting rod 42 acts as a guide rod for the up-and-down movement of the lower platen 22 to ensure the stable movement of the lower platen 22. In this embodiment, the connecting rods 42 have four rectangular shapes.
As shown in fig. 3, a hanger 5 is disposed above the assembly platform 11 in this embodiment, the hanger 5 includes a horizontally disposed upper support plate 51 and a boom 52 fixed on the upper support plate 51, the boom 52 is fixed on a middle portion of an upper side of the upper support plate 51, and the upper main cylinder 31 is fixed on a lower side of the upper support plate 51. A plurality of vertical guide rods 36 are fixed on the upper pressing plate 32, and the upper ends of the guide rods 36 penetrate through the upper supporting plate 51 and are in movable fit with the upper supporting plate 51. In this embodiment, the guide rods 36 have four rectangular shapes.
In addition, as shown in fig. 5, the lower pressing plate 22 is provided with cushion blocks dragging platforms 222 which are matched with the lower cushion block holes 111 one by one, the height of the cushion blocks dragging platforms 222 is not smaller than the thickness of the table top of the assembling platform 11, the lower cushion block clamping pieces 23 are fixed on the upper end face of the cushion blocks dragging platforms 222, when the insulating cushion blocks 63 at the lower end of the transformer coil assembly 6 are assembled, the insulating cushion blocks 63 are clamped on the cushion blocks dragging platforms 222, and the insulating cushion blocks 63 are pressed between the high-voltage coil and the low-voltage coil by utilizing the cushion block dragging platforms 222; as shown in fig. 6, the upper platen 32 has a relief hole 322 for the low-voltage coil lead-out wire 611 to pass through, and the low-voltage coil lead-out wire 611 passes through the relief hole 322 during the pressing down of the upper platen 32, so as to avoid interference with the upper platen 32.
The method for assembling the insulating spacers 63 at the upper and lower ends of the transformer coil assembly 6 using the automatic assembling device for the insulating spacers of the dry type transformer in the present embodiment comprises the steps of:
Step one, feeding an insulating cushion block: a plurality of insulating cushion blocks 63 are taken and respectively clamped in the lower cushion block clamping piece 23 and the upper cushion block assembly mechanism 3; when the insulating cushion block 63 at the lower side is clamped, the lower main cylinder 21 is started to push the lower pressing plate 22 to move upwards, the lower cushion block clamping piece 23 extends out of the upper side of the assembly platform 11, then the insulating cushion block 63 is clamped on the lower cushion block clamping piece 23 from the upper side of the assembly platform 11, and the lower main cylinder 21 is controlled to push the lower pressing plate 22 to move downwards, so that the insulating cushion block 63 on the lower main cylinder is immersed under the assembly platform 11;
step two, feeding the high-voltage coil and the low-voltage coil: the high and low voltage coils were placed and positioned as in example 1;
step three, assembling an upper insulating cushion block and a lower insulating cushion block:
I, starting an upper main cylinder 31 to push an upper pressing plate 32 to move downwards, and forcibly pressing an insulating cushion block 63 in an upper cushion block clamping piece 33 into a fit gap between the upper ends of a low-voltage coil 61 and a high-voltage coil 62 until the lower end face of the upper pressing plate 32 presses the upper ends of the high-voltage coil and the low-voltage coil;
II, starting the lower main cylinder 21 to push the lower pressing plate 22 to move upwards, and forcibly pressing the insulating cushion block 63 in the lower cushion block clamping piece 23 into a fit gap between the lower ends of the low-voltage coil 61 and the high-voltage coil 62;
And III, finally, simultaneously controlling the return stroke of the lower main cylinder 21 and the upper main cylinder 31, so that the upper pressing plate 32 of the lower pressing plate 22 is simultaneously separated from the end part of the transformer coil assembly 6, and simultaneously, the lower cushion block clamping piece 23 and the upper cushion block clamping piece 33 are pulled away from the insulating cushion block 63, thus the insulating cushion block 63 is assembled.
The automatic assembling device for the insulating cushion blocks of the dry-type transformer can replace manual operation to complete the assembly of all the insulating cushion blocks 63 at two ends of the coil assembly 6 of the transformer at one time, so that the labor intensity of assembly is reduced, the assembly efficiency is improved, meanwhile, the high-voltage coil and the low-voltage coil in the process of being pressed into the insulating cushion blocks can be prevented from relative movement, the fit clearance consistency of the high-voltage coil and the low-voltage coil of the produced transformer is higher, and the noise and breakdown failure rate of the transformer are reduced.
Example 3
The automatic assembling device for the insulating spacer of the dry-type transformer in this embodiment has the same basic structure as that of embodiment 2, and is different from and improved in that, as shown in fig. 1 and 2, the lower spacer assembling mechanism 2 further includes a plurality of lower auxiliary cylinders 24 corresponding to the lower spacer holders 23 one by one, the lower auxiliary cylinders 24 are vertically upward arranged at the lower side of the lower pressing plate 22, and the lower spacer holders 23 pass through the lower pressing plate 22 and are fixed at the upper end of the piston rod of the lower auxiliary cylinder 24; as shown in fig. 1 and 3, the upper pad assembly mechanism 3 further includes a plurality of upper sub-cylinders 34 in one-to-one correspondence with the upper pad clamps 33, the upper sub-cylinders being disposed vertically downward on the upper side of the upper platen 32, and the upper pad clamps 33 passing through the upper platen 32 and being fixed to the upper ends of the piston rods of the upper sub-cylinders 34.
Specifically, in this embodiment, four lower sub-cylinders 24 and four upper sub-cylinders 34 are respectively provided, as shown in fig. 2, a lower sub-cylinder frame 25 is fixed to the lower side of the lower platen 22, and four lower sub-cylinders 24 are respectively fixed to the lower sub-cylinder frame 25; as shown in fig. 3, an upper sub-cylinder frame 35 is fixed to the upper side of the upper platen 32, and four upper sub-cylinders 34 are fixed to the upper sub-cylinder frame 35; as shown in fig. 4, the piston rod ends of the lower auxiliary cylinder 24 and the upper auxiliary cylinder 34 are respectively fixed with a push block, and the lower cushion block clamping piece 23 and the upper cushion block clamping piece 33 are respectively fixed on the corresponding push blocks; in this embodiment, as shown in fig. 1 to 3, the lower pad holder 23 and the upper pad holder 33 are two straight plates disposed in parallel; as shown in fig. 5, the lower pressing plate 22 is provided with lower clamping member insertion holes 221 corresponding to the straight plates one by one, the lower clamping member insertion holes 221 are respectively positioned on the corresponding cushion block dragging platforms 222, and four lower cushion block clamping members 23 respectively penetrate through the corresponding lower clamping member insertion holes 221 and are fixed on the corresponding lower auxiliary air cylinders 24; as shown in fig. 6, the upper pressing plate 32 has upper clamping member insertion holes 321 corresponding to the straight plates one by one, and four upper pad clamping members 33 are respectively fixed on the corresponding upper sub-cylinders 34 through the corresponding upper clamping member insertion holes 321.
In addition, in the present embodiment, the lower auxiliary cylinder 24 and the upper auxiliary cylinder 34 are set to operate synchronously, and after the engine is started, the piston rods of the four lower auxiliary cylinders 24 and the four upper auxiliary cylinders 34 extend and return simultaneously, so as to reduce assembly time and improve assembly efficiency.
In the automatic assembly device for the insulating spacer of the dry-type transformer in this embodiment, when assembling the upper and lower insulating spacers, the assembly method is different from that in embodiment 2 in that after the insulating spacers 63 at the upper and lower ends of the transformer coil assembly 6 are pressed in, the lower auxiliary cylinder 24 and the upper auxiliary cylinder 34 are started simultaneously before the piston rods of the lower main cylinder 21 and the upper main cylinder 31 return, and the piston rods of the lower auxiliary cylinder 24 and the upper auxiliary cylinder 34 are controlled to be recovered into the cylinder body so as to separate the lower spacer clamping member 23 and the upper spacer clamping member 33 from the insulating spacers 63, and at this time, the insulating spacers 63 are prevented from being dragged out from the upper and lower ends of the transformer coil assembly 6 by the lower support plate 41 and the upper spacer clamping member 33 due to the limitation of the lower support plate 41 and the upper support plate 51, so that secondary assembly is avoided, and the assembly efficiency is further improved.
The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.
Claims (7)
1. The automatic assembling device for the insulating cushion block of the dry-type transformer is characterized by comprising a platform positioning mechanism (1), wherein the platform positioning mechanism (1) comprises an assembling platform (11) and four pushing mechanisms arranged on the assembling platform (11), a high-voltage coil positioning line and a low-voltage coil positioning line (112) are arranged in the middle of the assembling platform (11), and the four pushing mechanisms are symmetrically distributed around the positioning line (112) in pairs;
The pushing mechanism comprises a pushing plate (12) and a driving mechanism (13), the pushing plate (12) is in sliding connection with the assembling platform (11), and the driving mechanism (13) is connected to the pushing plate (12) to drive the pushing plate (12) to be close to or far away from the center of the positioning line (112);
Further comprises:
The lower cushion block assembly mechanism (2) is arranged below the assembly platform (11) and is used for assembling an insulating cushion block (63) at the lower end of the transformer coil assembly (6); and
The upper cushion block assembly mechanism (3) is arranged above the assembly platform (11) and is used for assembling an insulating cushion block (63) at the upper end of the transformer coil assembly (6);
The lower cushion block assembly mechanism (2) comprises a lower main cylinder (21), a lower pressing plate (22) and a plurality of lower cushion block clamping pieces (23), wherein the lower main cylinder (21) is vertically upwards arranged below the assembly platform (11), the lower pressing plate (22) is horizontally arranged at the upper end of a piston rod of the lower main cylinder (21), and the lower cushion block clamping pieces (23) are positioned at the upper side of the lower pressing plate (22) and correspond to preassembled positions of insulating cushion blocks (63) at the lower end of the transformer coil assembly (6) one by one;
The upper cushion block assembly mechanism (3) comprises an upper main cylinder (31), an upper pressing plate (32) and a plurality of upper cushion block clamping pieces (33), wherein the upper main cylinder (31) is vertically downwards arranged above the assembly platform (11), the upper pressing plate (32) is horizontally arranged at the lower end of a piston rod of the upper main cylinder (31), and the upper cushion block clamping pieces (33) are positioned at the lower side of the upper pressing plate (32) and correspond to preassembled positions of insulating cushion blocks (63) at the upper end of the transformer coil assembly (6) one by one;
The middle part of the assembly platform (11) is provided with four lower cushion block holes (111) which are in one-to-one correspondence with the lower cushion block clamping pieces (23).
2. The automated dry transformer bushing assembly apparatus of claim 1, wherein:
The lower cushion block assembly mechanism (2) further comprises a plurality of lower auxiliary cylinders (24) which are in one-to-one correspondence with the lower cushion block clamping pieces (23), the lower auxiliary cylinders (24) are vertically upwards arranged at the lower side of the lower pressing plate (22), and the lower cushion block clamping pieces (23) penetrate through the lower pressing plate (22) and are fixed at the upper ends of piston rods of the lower auxiliary cylinders (24);
The upper cushion block assembly mechanism (3) further comprises a plurality of upper auxiliary cylinders (34) which are in one-to-one correspondence with the upper cushion block clamping pieces (33), the upper cushion block clamping pieces (33) are vertically downwards arranged on the upper side of the upper pressing plate (32), and the upper cushion block clamping pieces (33) penetrate through the upper pressing plate (32) and are fixed at the upper ends of piston rods of the upper auxiliary cylinders (34).
3. The automatic assembling device for the insulating spacer of the dry type transformer according to claim 2, wherein: the lower auxiliary cylinder (24) and the upper auxiliary cylinder (34) are arranged to synchronously act.
4. The automatic assembling device for the insulating spacer of the dry type transformer according to claim 2, wherein: the bracket (4) for installing the lower cushion block assembly mechanism (2) is fixed on the lower side of the assembly platform (11).
5. The automatic assembling device for the insulating spacer of the dry type transformer according to claim 2, wherein: and a hanging bracket (5) for installing the upper cushion block assembly mechanism (3) is arranged above the assembly platform (11).
6. The automatic assembly device for insulation spacer of dry type transformer according to claim 2, wherein:
the lower pressing plate (22) is provided with cushion block dragging platforms (222) which are matched with the lower cushion block holes (111) one by one;
the upper pressing plate (32) is provided with a yielding hole (322) for the low-voltage coil outgoing line (611) to pass through.
7. A method for assembling a dry type transformer insulating spacer using the automatic assembling apparatus for an insulating spacer as claimed in claim 3, comprising the steps of:
I, starting an upper main cylinder (31) to push an upper pressing plate (32) to move downwards, and simultaneously pressing an insulating cushion block (63) in an upper cushion block clamping piece (33) into a fit gap between the upper ends of a low-voltage coil (61) and a high-voltage coil (62) until the lower end face of the upper pressing plate (32) presses the upper ends of the high-voltage coil and the low-voltage coil;
II, starting a lower main cylinder (21) to push a lower pressing plate (22) to move upwards, and pressing an insulating cushion block (63) in a lower cushion block clamping piece (23) into a fit gap between a low-voltage coil (61) and the lower end of a high-voltage coil (62);
III, simultaneously starting a lower auxiliary cylinder (24) and an upper auxiliary cylinder (34) to respectively drive the lower cushion block clamping piece (23) and the upper cushion block clamping piece (33) to be pulled away from the insulating cushion block (63);
And IV, finally, simultaneously controlling the return stroke of the lower main cylinder (21) and the upper main cylinder (31) to ensure that the upper pressing plate (32) of the lower pressing plate (22) is simultaneously separated from the end part of the transformer coil assembly (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010612065.7A CN111613438B (en) | 2020-06-30 | 2020-06-30 | Automatic assembly device and assembly method for insulating cushion block of dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010612065.7A CN111613438B (en) | 2020-06-30 | 2020-06-30 | Automatic assembly device and assembly method for insulating cushion block of dry-type transformer |
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| Publication Number | Publication Date |
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| CN111613438A CN111613438A (en) | 2020-09-01 |
| CN111613438B true CN111613438B (en) | 2024-05-03 |
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| CN212136257U (en) * | 2020-06-30 | 2020-12-11 | 马鞍山久想电气有限公司 | Automatic assembling device for insulating cushion block of dry-type transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106158284A (en) * | 2016-08-26 | 2016-11-23 | 山东鑫大电气有限公司 | A kind of resin casting coil dry type transformer device structure and assembly method thereof |
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|---|---|
| CN111613438A (en) | 2020-09-01 |
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