An easily adjustable high-precision roll forming device for rectangular transposed conductors

Abstract

The present invention discloses a roll forming device for easily adjustable high-precision rectangular transposed conductors, including a housing component, a roll forming component and a control component. The housing component includes a housing bottom plate, a housing side plate and a housing panel. The housing panel and the housing side plate are both provided with cross-shaped openings. The housing bottom plate is provided with four rows of first threaded holes. The upper, lower, right and left end surfaces of the housing side plates are all provided with first through holes. A "cross"-shaped housing and module component are adopted, and the volume of the device is reduced by more than 30%, and the weight reduction effect is significant. The size control component is arranged in the missing corner area of ​​the "cross"-shaped housing, which conforms to the principle of ergonomics, is easy to operate and maintain, and saves physical space. The adaptability of the industrial production line is strong. The size control component adopts a hand wheel adjustment method, and does not need to use professional tools for size adjustment. The operation is smoother, the production change efficiency is higher, and it is more suitable for the customized production mode of transposed conductors.

Description

Technical Field

[0001] The invention relates to the technical field of processing and manufacturing winding wires or special cables, and in particular to a roller forming device for easily adjustable high-precision rectangular transposed conductors. Background Art

[0002] Rectangular transposed conductors have gradually become the preferred winding wire type for reactors in ultra-high voltage and UHV transmission systems due to their advantages such as high insulation strength, compact structure, and small difference in conductor resistance. They can significantly improve the winding strength, efficiency, volume, and long-term operating reliability of reactors.

[0003] Rectangular transposed conductors have many specifications and high dimensional accuracy, and are basically custom-made. The most critical link in the manufacturing process is the twisted transposition forming process, and the core tooling of the twisted transposition forming process is the forming device. Traditional forming devices mostly adopt a rectangular design, which is relatively bulky; the control components need to be operated with the help of professional tools, and the adjustment process of the forming size is cumbersome and the work efficiency is low; the displacement control method of the rolling component adopts ordinary rails or concave and convex grooves, and the precision of the forming size is generally not high. Moreover, after the forming device has been used for a period of time, the surface of the rolling component will be damaged or worn, and it usually needs to be disassembled as a whole for repair, which is time-consuming and labor-intensive and easily reduces the assembly accuracy of the parts, resulting in a decrease in the roller forming accuracy of the forming device.

[0004] Therefore, we propose an easily adjustable high-precision rectangular transposed conductor roll forming device to solve the above problems. Summary of the invention

[0005] The technical solution of the present invention aims at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology. The purpose of the present invention is to provide an easily adjustable high-precision roller forming device for rectangular transposed conductors to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A roll forming device for easily adjustable high-precision rectangular transposed conductors, comprising a housing assembly, a roll forming assembly and a control assembly, wherein the housing assembly comprises a housing bottom plate, a housing side plate and a housing panel, the housing panel and the housing bottom plate are both provided with cross-shaped openings, the housing bottom plate is provided with four rows of first threaded holes, the upper, lower, right and left end surfaces of the housing side plate are all provided with first through holes, and the upper left, lower right, upper right and lower left end surfaces of the housing side plate are all provided with notches;

[0008] The rolling assembly includes a roller, a bearing group, a connecting shaft, a third shaft sleeve, a roller clamping displacement member, an upper displacement workpiece, a linear guide No. 1 and a linear guide No. 2. There are four sets of rolling assemblies. The linear guide No. 1 includes a guide slider No. 1, a sliding guide No. 1, a track fastening screw No. 1 and a slider fastening screw No. 1. The sliding guide No. 1 is fixed to the first threaded hole of the bottom plate of the shell through the track fastening screw No. 1. One side of the sliding guide No. 1 is slidably connected with the guide slider No. 1. The guide slider No. 1 is fixed to the first threaded hole of the bottom plate of the shell through the track fastening screw No. 1. Nail No. 1 is fixed on the upper displacement workpiece, a second through hole is opened on the bottom surface of the upper displacement workpiece, a second threaded guide hole is opened on the side surface of the upper displacement workpiece, linear guide No. 2 includes guide rail slider No. 2, sliding guide No. 2, track fastening screw No. 2, and slider fastening screw No. 2, sliding guide No. 2 is connected to the upper displacement workpiece through track fastening screw No. 2, the outer wall of sliding guide No. 2 is slidably connected with guide rail slider No. 2, and guide rail slider No. 2 is connected to the roller clamping displacement member through slider fastening screw No. 2;

[0009] Bearing holes are arranged on both sides of the roller, and the bearing group includes a first bearing and a second bearing. The outer rings of the first bearing and the second bearing are assembled in the bearing holes by tight fit, and the connecting shaft is assembled on the inner rings of the first bearing and the second bearing by tight fit. Two first bearing retaining rings are arranged on the outer sides of the first bearing and the second bearing respectively, and the third sleeves are connected to both sides of the roller clamping displacement member by sleeve fastening screws;

[0010] The control component includes a handwheel, a bearing sleeve, a fourth bearing, a screw, a second bearing retaining ring, a key block and a bearing sleeve fastening screw. There are eight control components in total, and every two control components correspond to the rolling components. The screw on one group of control components passes through the first through hole and engages with the second threaded guide hole. The bearing sleeve on one group of control components is fixed to the outer wall of the shell side plate by the bearing sleeve fastening screw, and the position of the bearing sleeve corresponds to the first through hole. The bearing sleeve on another group of control components is fixed to the bottom of the upper displacement workpiece by the bearing sleeve fastening screw, and the position of the bearing sleeve corresponds to the second through hole. The screw on another group of control components engages with the first threaded guide hole, and the screw is rotatably connected to the bearing sleeve through the fourth bearing. A key block is placed on the outer wall of the screw by opening a keyway, and a handwheel is connected to one side of the key block. The second bearing retaining ring is sleeved on the outside of the screw and fixed to the bottom of the fourth bearing by bolts.

[0011] In a further embodiment, the width of the outer circumferential surface of the roller is T1, the distance from the outer circumferential surface of the roller to the end of the shaft hole side of the roller clamping displacement member is T2, and the width of T1 ≤ the width of T2.

[0012] In a further embodiment, the shell bottom plate and the shell front plate are fixedly connected to the shell side plates by bolts.

[0013] In a further embodiment, the four rollers together form a rectangular roll-forming die, and the four rollers correspond to the cross-shaped opening.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The use of "cross" shaped shell and module components reduces the volume of the device by more than 30%, with significant weight reduction effects.

[0016] 2. The size control component is set in the missing corner area of ​​the "cross" shaped shell, which is in line with the principle of ergonomics, easy to operate and maintain, saves physical space, and has strong adaptability to industrial production lines. The size control component adopts a hand wheel adjustment method, which does not require the use of professional tools for size adjustment, and the operation is smoother, the production change efficiency is higher, and it is more suitable for the customized production mode of transposed conductors.

[0017] 3. Double-layer displacement adjustment mechanism based on linear rails to achieve precise control of rolling dimensions.

[0018] 4. The roller pressing assembly adopts a detachable sleeve. Without disassembling the housing assembly, control assembly and sliding system of the roller pressing assembly, the roller can be easily disassembled, maintained and replaced, which minimizes the matching accuracy of the core components of the entire device and ensures that the surface quality of the roller continues to meet the process requirements of transposed conductors or other special cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is an outline drawing of a roller forming device for easily adjustable high-precision rectangular transposed conductors.

[0020] Figure 2 The internal structure diagram of a roller forming device for easily adjustable high-precision rectangular transposed conductors.

[0021] Figure 3 This is the structural diagram of the shell assembly.

[0022] Figure 4 The front view of the housing assembly.

[0023] Figure 5 This is the appearance structure diagram of the roller pressing component.

[0024] Figure 6 The front view of the roller assembly.

[0025] Figure 7 An exploded view of the roller pressing component.

[0026] Figure 8 This is an exploded view of the control component.

[0027] In the figure: 1, housing assembly; 11, housing bottom plate; 12, housing side plate; 13, housing panel; 2, rolling assembly; 21, roller; 22, bearing group; 221, first bearing; 222, second bearing; 23, connecting shaft; 24, third bushing; 25, roller clamping displacement member; 26, upper displacement workpiece; 271, linear guide No. 1; 2711, guide slider No. 1; 2712, sliding guide No. 1; 2713, track fastening screw No. 1; 2714, slider fastening screw No. 1; 272, linear guide No. 2; 2721, guide slider No. 2 No. 2722, sliding guide rail No. 2; 2723, track fastening screw No. 2; 2724, slider fastening screw No. 2; 28, sleeve fastening screw; 291, first bearing retaining ring; 3, control assembly; 31, handwheel; 32, bearing sleeve; 33, fourth bearing; 34, lead screw; 35, second bearing retaining ring; 36, key block; 37, bearing sleeve fastening screw; 4, first through hole; 5, first threaded guide hole; 6, second threaded guide hole; 7, second through hole; 8, notch; 9, rectangular roll-forming die; 10, cross-shaped opening; 100, first threaded hole. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example 1

[0032] See also Figure 1-8 In an embodiment of the present invention, a roll forming device for easily adjustable high-precision rectangular transposed conductors includes a housing component 1, a roll forming component 2 and a control component 3. The housing component 1 includes a housing bottom plate 11, a housing side plate 12 and a housing panel 13. The housing panel 13 and the housing bottom plate 11 are both provided with a cross-shaped opening 10 on their surfaces. The housing bottom plate 11 is provided with four rows of first threaded holes 100. The upper, lower, right and left end surfaces of the housing side plate 12 are all provided with first through holes 4. The upper left, lower right, upper right and lower left end surfaces of the housing side plate 12 are all provided with notches 8.

[0033] The rolling assembly 2 includes a roller 21, a bearing group 22, a connecting shaft 23, a third sleeve 24, a roller clamping displacement member 25, an upper displacement workpiece 26, a linear guide No. 1 271 and a linear guide No. 2 272. The rolling assembly 2 has four sets. The linear guide No. 1 271 includes a guide slider No. 1 2711, a sliding guide No. 1 2712, a track fastening screw No. 1 2713 and a slider fastening screw No. 1 2714. The sliding guide No. 1 2712 is fixed to the first threaded hole 100 of the shell bottom plate 11 by the track fastening screw No. 1 2713. One side of the sliding guide No. 1 2712 is slidably connected to the guide slider No. 1 2711. The guide slider No. 1 2711 is connected to the slider by the slider The fastening screw No. 1 2714 is fixed on the upper character displacement workpiece 26, the bottom surface of the upper character displacement workpiece 26 is provided with a second through hole 7, the side surface of the upper character displacement workpiece 26 is provided with a second threaded guide hole 6, the linear guide rail No. 2 272 includes a guide rail slider No. 2 2721, a sliding guide rail No. 2 2722, a track fastening screw No. 2 2723, and a slider fastening screw No. 2 2724, the sliding guide rail No. 2 2722 is connected to the upper character displacement workpiece 26 through the track fastening screw No. 2 2723, the outer wall of the sliding guide rail No. 2 2722 is slidably connected with the guide rail slider No. 2 2721, and the guide rail slider No. 2 2721 is connected to the roller clamping displacement member 25 through the slider fastening screw No. 2 2724;

[0034] Bearing holes are arranged on both sides of the roller 21, and the bearing group 22 includes a first bearing 221 and a second bearing 222. The outer rings of the first bearing 221 and the second bearing 222 are tightly fitted in the bearing holes, and the connecting shaft 23 is tightly fitted on the inner rings of the first bearing 221 and the second bearing 222. Two first bearing retaining rings 291 are respectively arranged on the outer sides of the first bearing 221 and the second bearing 222. The third sleeves 24 are connected to both sides of the roller clamping displacement member 25 through sleeve fastening screws 28;

[0035] The control assembly 3 includes a hand wheel 31, a bearing sleeve 32, a fourth bearing 33, a screw 34, a second bearing retaining ring 35, a key block 36 and a bearing sleeve fastening screw 37. The control assembly 3 is provided with eight sets in total, and every two control assemblies 3 correspond to the rolling assembly 2. The screws 34 on one set of the control assemblies 3 pass through the first through hole 4 and engage with the second threaded guide hole 6. The bearing sleeves 32 on one set of the control assemblies 3 are fixed to the outer wall of the housing side plate 12 by the bearing sleeve fastening screws 37, and the bearing sleeves 32 correspond to the position of the first through hole 4. The bearing sleeve 32 on one set of control components 3 is fixed to the bottom of the upper displacement workpiece 26 by a bearing sleeve fastening screw 37, and the bearing sleeve 32 corresponds to the position of the second through hole 7. The lead screw 34 on another set of control components 3 is engaged with the first threaded guide hole 5. The lead screw 34 is rotatably connected with the bearing sleeve 32 through the fourth bearing 33. A key block 36 is placed on the outer wall of the lead screw 34 through a key slot. A handwheel 31 is connected to one side of the key block 36. The second bearing retaining ring 35 is sleeved on the outside of the lead screw 34 and fixed to the bottom of the fourth bearing 33 by bolts.

[0036] The cross-shaped opening 10 has twelve sides in total, and each three sides form a group. Each group is distributed in the four directions of the top, bottom, left and right of the cross-shaped opening 10. The long side of each group is w. In the upper group, the short sides on both sides of w are vl1 and vl2. In the lower group, the short sides on both sides of w are vl1' and vl2'. In the left group, the short sides on both sides of w are hl1 and hl2. In the right group, the short sides on both sides of w are hl1' and hl2'. The difference between the two short sides in the same group is e. vl1 and vl1', vl2 and vl2', hl1 and hl1', hl2 and hl2' are all parallel to each other and staggered. The staggered distance is e. The length range of e is between 5mm and 30mm.

[0037] The shell side plate 12 has twelve sides in total, and each three sides form a group. The long sides W are parallel to the w sides of the cross-shaped opening 10. There are four long sides W in total. The long sides W on the shell side plate 12 and the w sides on the cross-shaped opening 10 are staggered, and the distance of the staggered distribution is E, and E≥e;

[0038] w (width) = 2T1 (width) + x, x is in mm, ranging from 20mm to 30mm, and T1 length ranges from 30mm to 60mm;

[0039] Example 2

[0040] See also Figure 1-8 , which is different from Example 1 in that: the width of the outer circumferential surface of the roller 21 is T1, the distance from the outer circumferential surface of the roller 21 to the end of the shaft hole side of the roller clamping displacement member 25 is T2, and the width of T1 ≤ the width of T2.

[0041] The housing bottom plate 11 and the housing panel 13 are fixedly connected to the housing side plate 12 by bolts.

[0042] The four rollers 21 together form a rectangular roll-forming die 9 , and the four rollers 21 correspond to the cross-shaped opening 10 .

[0043] The working principle of the present invention is:

[0044] Four sets of rolling assemblies 2 and eight sets of control assemblies 3 are arranged in the shell assembly 1; each set of rolling assemblies 2 realizes the lateral sliding and longitudinal sliding of the roller 21 through the linear guide No. 1 271 and the linear guide No. 2 272; because the bearing sleeve 32 is fixed, the lead screw 34 of the four control assemblies 3 can only make rotational motion, and rotating the handwheel 31 can respectively open the threaded transmission between the lead screw 34 and the first threaded guide hole 5 and the second threaded guide hole 6, and adjust the displacement of the upper displacement workpiece 26 and the roller clamping displacement member 25, so as to realize the precise control of the upper, lower, left and right positions of each roller 21, so that the arc surfaces and sides of two adjacent rollers 21 are close to each other, and finally the arc surfaces of the four rollers 21 form a rectangular die with a maximum size of T1×T1. After the transposed conductor is pulled through the die, it is rolled by the roller 21 into a rectangular appearance of the required size.

[0045] According to the above principle, during the roll forming process, the four rollers of the device are distributed in a staggered cross position, and the shell shape and the opening area where the rollers are distributed are designed to be staggered cross shapes. This is optimized by making full use of the four-roller roll forming principle and forming characteristics, which not only improves the space utilization of the device, but also takes into account the rationality, practicality and aesthetic effect of the mechanical design. The dimensional relationship between the roller outer surface width T1, the shell shape staggered distance E, the shell opening area staggered distance e, E and e is related to the size of the workpiece to be processed, the precision of the parts and the rationality of the operating space. T1≤T2 is conducive to avoiding hard contact damage between the roller side coaxial sleeve 24 and the roller clamping displacement member 25 during the process of combining the four rollers into a micro-sized rectangular die.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An easily adjustable high-precision rectangular transposed conductor roll forming device, characterized in that: The invention comprises a housing component (1), a rolling component (2) and a control component (3), wherein the housing component (1) comprises a housing bottom plate (11), a housing side plate (12) and a housing face plate (13), the housing face plate (13) and the housing bottom plate (11) are both provided with a cross-shaped opening (10) on their surfaces, the housing bottom plate (11) is provided with four rows of first threaded holes (100), the upper, lower, right and left end surfaces of the housing side plate (12) are each provided with a first through hole (4), and the upper left, lower right, upper right and lower left end surfaces of the housing side plate (12) are each provided with a notch (8); The rolling assembly (2) comprises a roller (21), a bearing assembly (22), a connecting shaft (23), a third shaft sleeve (24), a roller clamping displacement member (25), an upper displacement workpiece (26), a linear guide rail No. 1 (271) and a linear guide rail No. 2 (272). The rolling assembly (2) comprises four sets in total. The linear guide rail No. 1 (271) comprises a guide rail slider No. 1 (2711), a sliding guide rail No. 1 (2712), a track fastening screw No. 1 (2713) and a slider fastening screw No. 1 (2714). The sliding guide rail No. 1 (2712) is fixed to a first threaded hole (100) of a housing bottom plate (11) by means of a track fastening screw No. 1 (2713). One side of the sliding guide rail No. 1 (2712) is slidably connected to a guide rail slider No. 1 (2711). The guide rail slider No. 1 (2711) is connected to the housing bottom plate (11) by means of a track fastening screw No. 1 (2713). The slider is fixed to the upper character displacement workpiece (26) by a No. 1 slider fastening screw (2714); a second through hole (7) is provided on the bottom surface of the upper character displacement workpiece (26); a second threaded guide hole (6) is provided on the side surface of the upper character displacement workpiece (26); a No. 2 linear guide rail (272) comprises a No. 2 guide rail slider (2721), a No. 2 sliding guide rail (2722), a No. 2 track fastening screw (2723), and a No. 2 slider fastening screw (2724); the No. 2 sliding guide rail (2722) is connected to the upper character displacement workpiece (26) by a No. 2 track fastening screw (2723); the No. 2 guide rail slider (2721) is slidably connected to the outer wall of the No. 2 sliding guide rail (2722); the No. 2 guide rail slider (2721) is connected to the roller clamping displacement member (25) by a No. 2 slider fastening screw (2724); Bearing holes are provided on both sides of the roller (21); the bearing group (22) comprises a first bearing (221) and a second bearing (222); the outer rings of the first bearing (221) and the second bearing (222) are assembled in the bearing holes by tight fitting; the connecting shaft (23) is assembled on the inner rings of the first bearing (221) and the second bearing (222) by tight fitting; two first bearing retaining rings (291) are respectively provided on the outer sides of the first bearing (221) and the second bearing (222); and the third sleeves (24) are connected to both sides of the roller clamping displacement member (25) by sleeve fastening screws (28); The control assembly (3) comprises a hand wheel (31), a bearing sleeve (32), a fourth bearing (33), a lead screw (34), a second bearing retaining ring (35), a key block (36) and a bearing sleeve fastening screw (37). The control assembly (3) is provided with eight sets in total, and every two control assemblies (3) correspond to the rolling assembly (2). The lead screw (34) on one set of the control assemblies (3) passes through the first through hole (4) and engages with the second threaded guide hole (6). The bearing sleeve (32) on one set of the control assemblies (3) is fixed to the outer wall of the housing side plate (12) by the bearing sleeve fastening screw (37), and the position of the bearing sleeve (32) corresponds to the position of the first through hole (4). The bearing sleeve (32) on the other control assembly (3) is fixed to the bottom of the upper displacement workpiece (26) by means of a bearing sleeve fastening screw (37), and the bearing sleeve (32) corresponds to the position of the second through hole (7). The lead screw (34) on the other control assembly (3) is engaged with the first threaded guide hole (5), and the lead screw (34) is rotatably connected to the bearing sleeve (32) via a fourth bearing (33). A key block (36) is disposed on the outer wall of the lead screw (34) via a key slot, and a hand wheel (31) is connected to one side of the key block (36). The second bearing retaining ring (35) is sleeved on the outer side of the lead screw (34) and is fixed to the bottom of the fourth bearing (33) via bolts.

2. A roll forming device for easily adjustable high-precision rectangular transposed conductor according to claim 1, characterized in that: The width of the outer circumference of the roller (21) is T1, the distance between the outer circumference of the roller (21) and the end of the shaft hole side of the roller clamping displacement member (25) is T2, and the width of T1 is ≤ the width of T2.

3. An easily adjustable high-precision rectangular transposed conductor roll forming device according to claim 1, characterized in that: The housing bottom plate (11) and the housing front plate (13) are fixedly connected to the housing side plate (12) via bolts.

4. An easily adjustable high-precision rectangular transposed conductor roll forming device according to claim 1, characterized in that: The four rollers (21) together form a rectangular roller-forming die opening (9), and the four rollers (21) correspond to the cross-shaped opening (10).

Images