Transformer coil adjustment and compression device

Abstract

The present application relates to the technical field of transformer, and proposes a transformer coil adjusting and pressing device, which comprises a machine tool and an inner support column, the inner support column is arranged on the machine tool, the shape of the inner support column is the same as the inner ring shape of the coil, further comprising a positioning rod, the positioning rod is fixedly connected to the top center position of the inner support column, four right-angle sliding rails, the four right-angle sliding rails are fixedly connected to the machine tool, a pressing plate, the pressing plate is slidingly arranged between the four right-angle sliding rails, a driving assembly, the driving assembly is arranged on the machine tool, and an outer baffle, the inner surface shape of the outer baffle is the same as the outer ring shape of the coil. Through the above technical scheme, the problem of local coil misalignment caused by the fact that the pressing degree is not accurate enough if the coil outside is not limited during the pressing process in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformer, in particular, to a transformer coil adjusting and pressing device. BACKGROUND

[0002] The transformer coil is a kind of coil, and the coil is required in the transformer to operate. According to the number of phases, it is divided into single-phase transformer and three-phase transformer. The single-phase transformer is used for single-phase load and three-phase transformer group. The three-phase transformer is used for voltage increase and decrease of three-phase system. According to the capacity, the coil of small transformer is generally made of circular copper wire with insulation, and the coil of large transformer is made of flat copper wire with insulation layer.

[0003] The existing transformer coil is obtained by winding copper wire, and basically adopts a non-circular structure instead of a circular structure. Therefore, during the winding process, the copper wire is often loose and misaligned. In order to ensure that the coil can be normally placed in the transformer oil tank for normal use, pressing operation is required. However, if the outer side of the coil is not limited during the pressing process in the prior art, the pressing degree is not accurate enough, which may cause local coil misalignment. If the original coil is misaligned, the misalignment degree will be deepened, which is not easy to adjust subsequently. SUMMARY

[0004] The present application provides a transformer coil adjusting and pressing device, which solves the problem of local coil misalignment caused by the inaccurate pressing degree if the outer side of the coil is not limited during the pressing process in the prior art.

[0005] The technical scheme of the present application is as follows:

[0006] The transformer coil adjusting and pressing device comprises a machine tool and an inner support column, the inner support column is arranged on the machine tool, the shape of the inner support column is the same as the inner ring shape of the coil,

[0007] Further comprising,

[0008] A positioning rod is fixedly connected to the top center position of the inner support column,

[0009] Four straight sliding rails are arranged, and the four straight sliding rails are fixedly connected to the machine tool,

[0010] A pressing plate is arranged between the four straight sliding rails,

[0011] A driving assembly is arranged on the machine tool,

[0012] An outer baffle plate is arranged, and the inner surface shape of the outer baffle plate is the same as the outer ring shape of the coil.

[0013] As a further technical scheme, the external baffle comprises two arc-shaped baffles and two vertical baffles, the two arc-shaped baffles and the two vertical baffles are assembled to form the external baffle, and the outer surface of the coil is shaped; one pushing driving element is connected to the side of each arc-shaped baffle away from the coil; and one pushing driving element is connected to the side of each vertical baffle away from the coil.

[0014] As a further technical scheme, the positioning rod is a threaded rod, the top of the pressing plate is provided with two lifting rings connected to lifting ends of an external lifting mechanism, a circular hole is formed in the center of the pressing plate, a connecting rotating shaft sleeve is mounted on the upper side of the pressing plate, the large gear is rotatably mounted on the top of the connecting rotating shaft sleeve, and a threaded sleeve is arranged on the top of the large gear.

[0015] As a further technical scheme, the driving assembly comprises,

[0016] A first support frame is mounted on the machine tool,

[0017] A first sliding rail is mounted on the top of the first support frame,

[0018] A first telescopic driving element is mounted on the end of the first sliding rail away from the coil through a support plate,

[0019] A mounting seat is slidably arranged on the first sliding rail,

[0020] A power motor is mounted on the mounting seat,

[0021] A power column gear is fixedly connected to the output shaft of the power motor.

[0022] As a further technical scheme, the pushing driving element is a third telescopic driving element, two third telescopic driving elements form a group, each arc-shaped baffle and each vertical baffle are connected to a group of third telescopic driving elements, each group of third telescopic driving elements is mounted on a second vertical plate, each second vertical plate is mounted on a third electric sliding seat, each third electric sliding seat is slidably arranged on a second sliding rail, and the second sliding rail is mounted on the machine tool.

[0023] The pressing front pretreatment mechanism is further arranged on each second sliding rail provided with the vertical baffle, two pressing front pretreatment mechanisms are arranged on each second sliding rail provided with the arc-shaped baffle, and the pressing front pretreatment mechanism is used for adjusting the coil before pressing.

[0024] As a further technical scheme, the pre-tightening pretreatment mechanism comprises,

[0025] The first electric sliding seat is slidably arranged on the second sliding rail,

[0026] The first vertical plate is installed on the first electric sliding seat,

[0027] The second telescopic driving member is provided with two, and the two second telescopic driving members are installed on the first vertical plate,

[0028] The vertical sliding rail is installed on the telescopic end of the two second telescopic driving members,

[0029] The second electric sliding seat is slidably arranged on the vertical sliding rail,

[0030] The assembly plate is installed on the second electric sliding seat,

[0031] The alignment assembly is installed on the assembly plate.

[0032] As a further technical scheme, the alignment assembly comprises,

[0033] The micro motor is installed on the assembly plate,

[0034] The swing rod is fixedly connected to the output shaft of the micro motor,

[0035] The connecting sliding rod is rotatably connected to one end of the swing rod away from the micro motor,

[0036] The limiting groove rail is provided with two, and the two limiting groove rails are symmetrically arranged on both sides of the assembly plate, and the second support frame is fixedly connected to the assembly plate by a group of second support frames,

[0037] The moving frame is slidably arranged in the two limiting groove rails through the sliding blocks at both ends,

[0038] The connecting seat is provided with two, and the two connecting seats are fixedly connected to the moving frame,

[0039] The first elastic telescopic rod is provided with two, and the two first elastic telescopic rods are respectively installed on the two connecting seats,

[0040] The position adjusting column is installed on the telescopic end of the two first elastic telescopic rods,

[0041] Adjusting slide rods, two of which are fixedly connected to two ends of the adjusting column,

[0042] Adjusting frames, two of which are mounted on two groups of the second support frames, and the adjusting frames are inclined from bottom to top towards the direction away from the assembly plate, and each adjusting slide rod slides in one adjusting frame.

[0043] As a further technical solution, a plurality of equidistant dome-shaped protrusions are arranged on one side of the inner surface of the adjusting frame, and the adjusting column is made of elastic material.

[0044] As a further technical solution, the pre-pressing pretreatment mechanism further comprises a compaction assembly, which comprises,

[0045] Strip-shaped plates, which are mounted on the moving frame through connecting frames,

[0046] Connecting rods, two of which are slidingly arranged on the strip-shaped plates,

[0047] Hammering rods, which are fixedly connected to first ends of the two connecting rods,

[0048] Transmission plates, which are fixedly connected to second ends of the two connecting rods,

[0049] Second elastic telescopic rods, two of which are mounted on two sides of the transmission plate, and telescopic ends of the two second elastic telescopic rods are connected to the strip-shaped plates,

[0050] Bearing seat plates, which are mounted on the strip-shaped plates,

[0051] Rotating shaft rods, which are rotatably arranged on the bearing seat plates,

[0052] Cam, which is fixedly connected to a first end of the rotating shaft rod, and an outer ring surface of the cam contacts the transmission plate,

[0053] Flat gear, which is fixedly connected to a second end of the rotating shaft rod,

[0054] Toothed rod, which is fixedly connected to a side surface of one limiting groove rail, and the toothed rod engages the flat gear.

[0055] As a further technical scheme, the two position adjusting columns and the two beating rods in the two pre-treatment mechanisms before compression on the second slide rail provided with the arc-shaped baffle are all arc-shaped, the two arc-shaped position adjusting columns in the two pre-treatment mechanisms before compression are spliced to form an arc-shaped surface that matches the coil, and the two arc-shaped beating rods in the two pre-treatment mechanisms before compression are spliced to form an arc-shaped surface that matches the coil.

[0056] The working principle and beneficial effects of the present application are as follows:

[0057] In the present application, when the transformer coil adjusting and compressing device is used, the coil is first sleeved on the outside of the inner support column, then the push driving member is controlled to elongate, the two arc-shaped baffles and the two vertical baffles are driven to move close to the coil, a complete external baffle is formed, the outside of the coil is shaped, and secondary mispositioning of the coil in the process of compressing the coil is avoided, then the external lifting mechanism is controlled to lower the compression plate, that is, the compression plate is lowered in the four right-angle slide rails until the threaded rod is inserted into the threaded sleeve through the compression plate and the connecting shaft sleeve, at this time, the first telescopic driving member is controlled to elongate, then the first telescopic driving member drives the mounting seat to slide on the first slide rail, then the mounting seat drives the power motor and the power column gear to move close to the large gear, that is, the power column gear meshes with the large gear, then the power motor is controlled to rotate, then the power motor drives the power column gear to rotate and drives the large gear to rotate, then with the rotation of the large gear, the threaded sleeve rotates and descends on the surface of the threaded rod, thereby driving the connecting shaft sleeve and the compression plate to move downward, the compression plate can compress the coil, rapid positioning and compression are realized, the efficiency of compressing the coil is improved, and the external baffle ensures that the outer surface of the coil will not be mispositioned again, ensuring the integrity of the coil after compression. BRIEF DESCRIPTION OF DRAWINGS

[0058] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0059] Figure 1 It is a first structure schematic view of the transformer coil adjusting and compressing device of the present application.

[0060] Figure 2 It is a second structure schematic view of the transformer coil adjusting and compressing device of the present application.

[0061] Figure 3 It is a partial structure schematic view of the compression plate in the present application.

[0062] Figure 4 It is a first local structure schematic view of the transformer coil adjusting and compressing device of the present application.

[0063] Figure 5 It is a second local structure schematic view of the transformer coil adjusting and compressing device of the present application.

[0064] Figure 6It is the first structure schematic view of the pre-treatment mechanism before compression in the application;

[0065] Figure 7 It is the second structure schematic view of the pre-treatment mechanism before compression in the application;

[0066] Figure 8 It is the third structure schematic view of the pre-treatment mechanism before compression in the application;

[0067] Figure 9 It is the structure schematic view of the adjusting frame in the application;

[0068] Figure 10 It is the structure schematic view of the compaction assembly in the application;

[0069] Figure 11 It is the first partial structure schematic view of the compaction assembly in the application;

[0070] Figure 12 It is the second partial structure schematic view of the compaction assembly in the application;

[0071] In the figure: 1, machine tool; 2, inner support column; 3, coil; 4, threaded rod; 5, right-angle slide rail; 6, pressing plate; 7, connecting shaft sleeve; 8, large gear; 9, threaded sleeve; 10, first support frame; 11, first slide rail; 12, first telescopic driving part; 13, mounting seat; 14, power motor; 15, power column gear; 16, arc-shaped baffle; 17, vertical baffle; 18, second slide rail; 19, first electric sliding seat; 20, first vertical plate; 21, second telescopic driving part; 22, vertical slide rail; 23, second electric sliding seat; 24, assembling plate; 25, micro motor; 26, swing lever; 27, connecting slide rod; 28, moving frame; 29, linking seat; 30, first elastic telescopic rod; 31, limiting groove rail; 32, second support frame; 33, adjusting column; 34, adjusting slide rod; 35, adjusting frame; 36, protruding block; 37, strip-shaped plate; 38, connecting rod; 39, beating rod; 40, second elastic telescopic rod; 41, transmission plate; 42, bearing seat plate; 43, shaft rod; 44, cam; 45, flat gear; 46, toothed rod; 47, third electric sliding seat; 48, second vertical plate; 49, third telescopic driving part. DETAILED DESCRIPTION

[0072] The technical solutions in the embodiments of the application will be clearly and completely described in combination with the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments of the application, all other embodiments obtained by a person of ordinary skill in the art without creative work are within the protection scope of the application.

[0073] As Figures 1-12As shown, the embodiment proposes a transformer coil adjusting and pressing device, which comprises a machine tool 1 and an inner support column 2 arranged on the machine tool 1, the inner support column 2 has the same shape as the inner ring of a coil 3,

[0074] Further comprising,

[0075] A positioning rod is fixedly connected to the top center position of the inner support column 2,

[0076] Four right-angle sliding rails 5 are arranged on the machine tool 1,

[0077] A pressing plate 6 is slidingly arranged between the four right-angle sliding rails 5,

[0078] A driving assembly is arranged on the machine tool 1,

[0079] An outer baffle has the same shape as the outer ring of the coil 3.

[0080] The outer baffle comprises two arc-shaped baffles 16 and two vertical baffles 17, which are assembled to form the outer baffle and shape the outer surface of the coil 3, one push-up driving element is connected to the side of each arc-shaped baffle 16 away from the coil 3, and one push-up driving element is connected to the side of each vertical baffle 17 away from the coil 3.

[0081] The positioning rod is a threaded rod 4, the top of the pressing plate 6 is provided with two lifting rings connected to the lifting end of an external lifting mechanism, a circular hole is opened in the center position of the pressing plate 6, a connecting shaft sleeve 7 is installed on the upper circular position of the pressing plate 6, a large gear 8 is rotatably installed on the top of the connecting shaft sleeve 7, and a threaded sleeve 9 is arranged in the top of the large gear 8.

[0082] The driving assembly comprises,

[0083] A first support frame 10 is installed on the machine tool 1,

[0084] A first sliding rail 11 is installed on the top of the first support frame 10,

[0085] A first telescopic driving element 12 is installed on the first sliding rail 11 away from the coil 3 through a support plate,

[0086] A mounting seat 13 is slidingly arranged on the first sliding rail 11,

[0087] A power motor 14 is installed on the mounting seat 13,

[0088] A power column gear 15 is fixed to the output shaft of the power motor 14.

[0089] In this embodiment, when the transformer coil is used to adjust the pressing device, first, the coil 3 is sleeved outside the inner support column 2, then the push driving part is controlled to extend, driving the two arc-shaped baffles 16 and the two vertical baffles 17 to move close to the coil 3, forming a complete external baffle, shaping the outside of the coil 3, avoiding the secondary displacement of the coil 3 in the process of pressing the coil 3, then the external lifting mechanism is controlled to lower the pressing plate 6, that is, the pressing plate 6 slides downward in the four right-angle slide rails 5 until the threaded rod 4 passes through the pressing plate 6 and the connecting shaft sleeve 7 and is inserted into the threaded sleeve 9, at this time, the first telescopic driving part 12 is controlled to extend, then the first telescopic driving part 12 drives the mounting seat 13 to slide on the first slide rail 11, then the mounting seat 13 drives the power motor 14 and the power column gear 15 to move close to the large gear 8, that is, the power column gear 15 meshes with the large gear 8, then the power motor 14 is controlled to rotate, then the power motor 14 drives the power column gear 15 to rotate and drives the large gear 8 to rotate, then with the rotation of the large gear 8, the threaded sleeve 9 rotates and descends on the surface of the threaded rod 4, thereby driving the connecting shaft sleeve 7 and the pressing plate 6 to move downward, and the pressing plate 6 can press the coil 3, realizing rapid positioning and pressing, improving the efficiency of pressing the coil 3, and the external baffle ensures that the outer surface of the coil 3 will not be secondarily displaced, ensuring the integrity of the coil 3 after pressing.

[0090] The push driving part is a third telescopic driving part 49, and each arc-shaped baffle 16 and each vertical baffle 17 is connected with a group of third telescopic driving parts 49.

[0091] The machine tool 1 further comprises a pre-pressing pretreatment mechanism, one pre-pressing pretreatment mechanism is slidably arranged on each second slide rail 18 provided with the vertical baffle 17, and two pre-pressing pretreatment mechanisms are slidably arranged on each second slide rail 18 provided with the arc-shaped baffle 16.

[0092] The pre-pressing pretreatment mechanism comprises,

[0093] A first electric sliding seat 19 is slidably arranged on the second slide rail 18.

[0094] A first vertical plate 20 is installed on the first electric sliding seat 19,

[0095] Two second telescopic driving members 21 are installed on the first vertical plate 20,

[0096] A vertical sliding rail 22 is installed on the telescopic ends of the two second telescopic driving members 21,

[0097] A second electric sliding seat 23 is slidingly arranged on the vertical sliding rail 22,

[0098] An assembly plate 24 is installed on the second electric sliding seat 23,

[0099] A positioning assembly is installed on the assembly plate 24.

[0100] The positioning assembly comprises,

[0101] A micro motor 25 is installed on the assembly plate 24,

[0102] A swing rod 26 is fixedly connected to the output shaft of the micro motor 25,

[0103] A connecting sliding rod 27 is rotatably connected to one end of the swing rod 26 away from the micro motor 25,

[0104] Two limiting groove rails 31 are symmetrically arranged on both sides of the assembly plate 24, and a second support frame 32 is fixedly connected to the assembly plate 24 by a set of second support frames 32,

[0105] A moving frame 28 is slidingly arranged in the two limiting groove rails 31 at both ends,

[0106] Two engaging seats 29 are fixedly connected to the moving frame 28,

[0107] Two first elastic telescopic rods 30 are respectively installed on the two engaging seats 29,

[0108] A position adjusting column 33 is installed on the telescopic ends of the two first elastic telescopic rods 30,

[0109] Adjusting slide rods 34 are arranged, and two adjusting slide rods 34 are fixed to two ends of the adjusting column 33 respectively,

[0110] Adjusting frames 35 are arranged, and two adjusting frames 35 are installed on two groups of the second support frames 32 respectively, the adjusting frame 35 is inclined from bottom to top towards the direction away from the assembly plate 24, and each adjusting slide rod 34 slides in the adjusting frame 35.

[0111] A plurality of equidistant dome-shaped protrusions 36 are arranged on one side of the inner surface of the adjusting frame 35, and the adjusting column 33 is made of elastic material.

[0112] In the embodiment, before compression, first control the first electric sliding seat 19 to move on the second sliding rail 18, drive the pre-compression pretreatment mechanism to move to the position opposite to the coil 3, that is, the pre-compression pretreatment mechanisms at four positions around the coil 3 are operated synchronously, after facing the coil 3, control the second telescopic driving part 21 to extend, drive the vertical sliding rail 22 and the positioning assembly to approach the coil 3, until the positioning assembly lightly touches the surface of the coil 3, then stop, at this time, control the micro motor 25 to rotate to drive the swing rod 26 to rotate, drive the moving frame 28 to slide up and down in the limiting groove rail 31 through the connecting slide rod 27, that is, the moving frame 28 drives the adjusting column 33 to move up and down through the connecting seat 29 and the first elastic telescopic rod 30, in the process of moving up, the adjusting column 33 slides up in the adjusting frame 35 through the adjusting slide rod 34, because the adjusting frame 35 is arranged obliquely, as the adjusting slide rod 34 gradually slides up, the adjusting slide rod 34 drives the adjusting column 33 to gradually move to the direction close to the coil 3, that is, the adjusting column 33 gradually compresses and pushes up the surface of the coil 3, so as to realize the effect that the adjusting column 33 gradually compresses and pushes up the surface of the coil 3 from bottom to top, for the misaligned coil 3, the misaligned coil 3 can be pushed up to reset, when the adjusting column 33 moves down, it also has the effect of resetting the misaligned coil 3, so that the coil 3 is positioned before compression, and the misalignment degree is avoided to be deepened after the coil 3 is compressed.

[0113] The adjusting slide rod 34 slides in the adjusting frame 35 to contact the dome-shaped protrusion 36 to form the vibration effect, so that the adjusting column 33 has the vibration effect during pushing, so that the misaligned coil 3 is more easily reset by vibration.

[0114] The pre-compression pretreatment mechanism further comprises a compacting assembly, the compacting assembly comprises,

[0115] A strip-shaped plate 37 is installed on the moving frame 28 through a connecting frame,

[0116] Connecting rods 38, provided with two, two said connecting rods 38 slidingly disposed on the strip-shaped plate 37,

[0117] Hammering rods 39, fixedly connected to the first ends of the two connecting rods 38,

[0118] Transmission plates 41, fixedly connected to the second ends of the two connecting rods 38,

[0119] Second elastic telescopic rods 40, provided with two, two said second elastic telescopic rods 40 mounted on both sides of the transmission plate 41, the telescopic ends of the two second elastic telescopic rods 40 connected to the strip-shaped plate 37,

[0120] Bearing seat plates 42, mounted on the strip-shaped plate 37,

[0121] Rotary shaft rods 43, rotatably disposed on the bearing seat plates 42,

[0122] Cam 44, fixedly connected to the first end of the rotary shaft rod 43, the outer ring surface of the cam 44 contacting the transmission plate 41,

[0123] Flat gears 45, fixedly connected to the second end of the rotary shaft rod 43,

[0124] Toothed rods 46, fixedly connected to the side surface of one of the limiting groove rails 31, the toothed rods 46 engaging the flat gears 45.

[0125] In this embodiment, during the up-and-down reciprocating movement of the moving frame 28, the strip-shaped plate 37 is also moved up and down, and then the strip-shaped plate 37 drives the compaction assembly to move up and down, that is, during the up-and-down movement, the flat gears 45 are rolled and rotated on the toothed rods 46, the flat gears 45 drive the rotary shaft rod 43 to rotate, the rotary shaft rod 43 drives the cam 44 to rotate, the cam 44 contacts the transmission plate 41, the transmission plate 41 is impacted by the cam 44, the transmission plate 41 compresses the second elastic telescopic rod 40, and the hammering rod 39 is driven to reciprocate through the connecting rod 38, that is, the repeated hammering of the hammering rod 39 is realized.

[0126] When the second electric sliding seat 23 gradually moves upward on the vertical sliding rail 22, the hammering rod 39 is located below the positioning column 33, so for the position adjusted by the positioning column 33, the hammering rod 39 will hammer the position again, ensuring the tightness of the coil 3 and the flatness of the outer surface of the coil 3, and realizing the effect of adjusting and compacting the misaligned coil 3.

[0127] After the coil 3 is compacted, the pre-pressing pretreatment mechanism is controlled to reset, the first electric sliding seat 19 is controlled to move away, then the third electric sliding seat 47 is controlled to move to the position opposite to the coil 3, at this time, the third telescopic driving part 49 is controlled to extend to drive the vertical baffle 17 and the arc-shaped baffle 16 to move, drive the two arc-shaped baffles 16 and the two vertical baffles 17 to move close to the coil 3, form the complete external baffle, shape the outer side of the coil 3, avoid the coil 3 from being dislocated again in the process of compacting the coil 3, and realize the effect that the dislocated coil 3 is adjusted before being shaped and compacted.

[0128] The dislocation column 33 and the beating rod 39 in the two pre-pressing pretreatment mechanisms on the second sliding rail 18 provided with the arc-shaped baffles 16 are all arc-shaped, the two arc-shaped dislocation columns 33 in the two pre-pressing pretreatment mechanisms are spliced into the whole arc-shaped surface matched with the coil 3, and the two arc-shaped beating rods 39 in the two pre-pressing pretreatment mechanisms are spliced into the whole arc-shaped surface matched with the coil 3.

[0129] In the embodiment, the straight and arc-shaped dislocation columns 33 and beating rods 39 cooperate to comprehensively adjust the coil 3 on the surface of the coil 3.

[0130] The above only provides the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A transformer coil adjusting and pressing device, comprising a machine tool (1) and an inner support column (2) arranged on the machine tool (1), the inner support column (2) having the same shape as an inner ring of a coil (3), characterized in that further comprising, a positioning rod fixedly connected to a top center position of the inner support column (2), four right-angle sliding rails (5) fixedly connected to the machine tool (1), a pressing plate (6) slidingly arranged between the four right-angle sliding rails (5), a driving assembly arranged on the machine tool (1), an outer baffle having an inner surface shape same as an outer ring shape of the coil (3); the outer baffle comprises two arc-shaped baffles (16) and two vertical baffles (17) assembled to form the outer baffle for shaping an outer surface of the coil (3), each arc-shaped baffle (16) is connected to a push driving element on a side away from the coil (3), and each vertical baffle (17) is connected to a push driving element on a side away from the coil (3); the positioning rod is a threaded rod (4), the top of the pressing plate (6) is provided with two lifting rings connected to lifting ends of an external lifting mechanism, a circular hole is formed in a center position of the pressing plate (6), a connecting shaft sleeve (7) is installed on an upper circular position of the pressing plate (6), a large gear (8) is rotatably installed on the top of the connecting shaft sleeve (7), and a threaded sleeve (9) is arranged on the top of the large gear (8) in a circular shape; the driving assembly comprises, a first support frame (10) installed on the machine tool (1), a first sliding rail (11) installed on the top of the first support frame (10), a first telescopic driving element (12) installed on the first sliding rail (11) through a support plate on an end away from the coil (3), a mounting seat (13) slidingly arranged on the first sliding rail (11), a power motor (14) installed on the mounting seat (13), a power column gear (15) fixedly connected to an output shaft of the power motor (14); the push driving element is a third telescopic driving element (49), two third telescopic driving elements (49) form a group, each arc-shaped baffle (16) and each vertical baffle (17) are connected to a group of third telescopic driving elements (49), each group of third telescopic driving elements (49) is installed on a second vertical plate (48), each second vertical plate (48) is installed on a third electric sliding seat (47), each third electric sliding seat (47) is slidingly arranged on a second sliding rail (18), and the second sliding rail (18) is installed on the machine tool (1). The pre-pressing pretreatment mechanism is arranged on the second sliding rail (18) provided with the vertical baffle (17) and two pre-pressing pretreatment mechanisms are arranged on the second sliding rail (18) provided with the arc-shaped baffle (16), and the pre-pressing pretreatment mechanism is used for adjusting the coil (3) before being pressed.

2. The transformer coil adjustment hold-down apparatus of claim 1, wherein The pre-pressing pretreatment mechanism comprises, A first electric sliding seat (19) is slidingly arranged on the second sliding rail (18), A first vertical plate (20) is arranged on the first electric sliding seat (19), Two second telescopic driving members (21) are arranged on the first vertical plate (20), A vertical sliding rail (22) is arranged at the telescopic end of the second telescopic driving member (21), A second electric sliding seat (23) is slidingly arranged on the vertical sliding rail (22), An assembly plate (24) is arranged on the second electric sliding seat (23), A positioning assembly is arranged on the assembly plate (24).

3. The transformer coil adjustment hold-down apparatus of claim 2, wherein The positioning assembly comprises, A micro motor (25) is arranged on the assembly plate (24), A swing rod (26) is fixedly connected to the output shaft of the micro motor (25), A connecting sliding rod (27) is rotatably connected to one end of the swing rod (26) away from the micro motor (25), Two limiting groove rails (31) are symmetrically arranged on both sides of the assembly plate (24), A moving frame (28) is slidingly arranged in the limiting groove rail (31) through a sliding block, Two connecting seats (29) are fixedly connected to the moving frame (28), Two first elastic telescopic rods (30) are arranged on the connecting seat (29), An adjusting column (33) is arranged at the telescopic end of the first elastic telescopic rod (30), Two adjusting sliding rods (34) are fixedly connected to both ends of the adjusting column (33). Adjusting frame (35), two adjusting frames (35) are arranged, two adjusting frames (35) are installed on two groups of second support frames (32) respectively, adjusting frame (35) is inclined to the direction away from assembly plate (24) from bottom to top, adjusting slide rod (34) is slid in adjusting frame (35).

4. The transformer coil adjustment hold-down apparatus of claim 3, wherein The inner surface of the adjusting frame (35) is provided with a plurality of equidistant dome-shaped protrusions (36), and the adjusting column (33) is made of elastic material.

5. The transformer coil adjustment hold-down apparatus of claim 4, wherein, The pre-pressing pretreatment mechanism further comprises a compaction assembly, A strip-shaped plate (37) is installed on the moving frame (28) by a connecting frame, Two connecting rods (38) are provided, and the two connecting rods (38) are slidably arranged on the strip-shaped plate (37), A beating rod (39) is fixedly connected to the first end of the two connecting rods (38), A transmission plate (41) is fixedly connected to the second end of the two connecting rods (38), Two second elastic telescopic rods (40) are provided, and the two second elastic telescopic rods (40) are installed on the two sides of the transmission plate (41), and the telescopic ends of the two second elastic telescopic rods (40) are connected to the strip-shaped plate (37), A bearing seat plate (42) is installed on the strip-shaped plate (37), A rotating shaft rod (43) is rotatably arranged on the bearing seat plate (42), A cam (44) is fixedly connected to the first end of the rotating shaft rod (43), and the outer ring surface of the cam (44) contacts the transmission plate (41), A flat gear (45) is fixedly connected to the second end of the rotating shaft rod (43), A toothed rod (46) is fixedly connected to the side surface of one of the limiting groove rails (31), and the toothed rod (46) engages the flat gear (45).

6. The transformer coil adjustment hold-down apparatus of claim 5, wherein, The adjusting column (33) and the beating rod (39) in the two pre-pressing pretreatment mechanisms provided with the arc-shaped baffle (16) on the second sliding rail (18) are both arc-shaped, the two arc-shaped adjusting columns (33) in the two pre-pressing pretreatment mechanisms are spliced to form an arc-shaped surface that fits the coil (3), and the two arc-shaped beating rods (39) in the two pre-pressing pretreatment mechanisms are spliced to form an arc-shaped surface that fits the coil (3). The inner surface of the adjusting frame (35) is provided with a plurality of equidistant dome-shaped protrusions (36), and the adjusting column (33) is made of elastic material.

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