CN216461302U - diameter reducing device - Google Patents

Abstract

The utility model provides a reducing device, comprising: the device comprises a rack, a first clamping piece and a second clamping piece, wherein the rack is provided with a through hole which is used for penetrating through a processed workpiece; a plurality of undergauge modules, the undergauge module is fixed in the frame, and every undergauge module includes: a housing; the two pinch rollers are rotatably arranged in the shell, rotating shafts of the two pinch rollers are parallel to each other, a space is formed between the two pinch rollers to form a reducing cavity, and the extending direction of the reducing cavity is overlapped with the axial direction of the through hole; the adjusting mechanism is arranged between the pressing wheels and the shell and can adjust the size of the space between the two pressing wheels; the diameter reducing modules are sequentially arranged along the axial direction of the through hole, each diameter reducing module is provided with a central line perpendicular to the axis of the through hole, the central lines of at least two diameter reducing modules are provided with included angles, and the cross sectional areas of at least two diameter reducing cavities are unequal. Through the technical scheme that this application provided, solve the problem that the undergauge device machining precision among the prior art is low.

Description

diameter reducing device

technical field

The utility model relates to the technical field of mechanical processing equipment, in particular to a diameter reducing device.

Background technique

The smooth aluminum sheathed cable is composed of a conductor, an insulated wire core, a water blocking tape and a smooth aluminum sheath. Belt outside. In the production of the smooth aluminum sheath, the sheathed conductor, the insulated wire core and the water blocking strip need to be placed on the aluminum strip, and the aluminum strip is welded into the smooth aluminum sheath. However, in order to avoid damaging the water-blocking tape during welding, there is a gap between the inner wall of the smooth aluminum sheath and the water-blocking tape. Poor contact between the inner wall of the aluminum sheath and the water-blocking tape produces discharge.

The existing diameter reducing device has low machining precision, and after the diameter reducing process is performed, the smooth aluminum sheath has a low roundness, so that it still cannot meet the diameter reducing needs.

Utility model content

The utility model provides a diameter reducing device to solve the problem of low machining accuracy of the diameter reducing device in the prior art.

The utility model provides a diameter reducing device. The diameter reducing device comprises: a frame, the frame is provided with a through hole, the through hole is used to pass a workpiece to be processed; a plurality of diameter reducing modules are fixed on the frame, Each diameter reducing module includes: a casing; two pressure rollers, which are rotatably arranged in the casing, the rotation axes of the two pressure rollers are parallel to each other, and there is an interval between the two pressure rollers to form a diameter reducing cavity, The extension direction of the diameter reducing cavity coincides with the axial direction of the through hole; the adjusting mechanism is arranged between the pressing wheel and the casing, and the adjusting mechanism can adjust the interval between the two pressing wheels; The axial directions of the through holes are arranged in sequence, each diameter reducing module has a center line perpendicular to the axis of the through hole, the center lines of at least two diameter reducing modules have an included angle, and the cross-sectional areas of the at least two diameter reducing cavities are not equal.

Further, each diameter reducing module includes two adjustment mechanisms, and the adjustment mechanisms are arranged in a one-to-one correspondence with the pressure rollers.

Further, the diameter reducing module further comprises: a mounting seat, which is movably arranged in the housing, the rotating shaft of the pressing wheel is arranged on the mounting seat, and the pressing wheel part is located in the mounting seat.

Further, the adjusting mechanism includes an adjusting screw, the adjusting screw is penetrated on the casing and is threadedly connected with the casing, the adjusting screw is located on the side of the mounting seat away from the diameter-reducing cavity, the adjusting screw is drivingly connected with the mounting seat, and the adjusting screw passes through the mounting seat. The mounting seat drives the pressure roller to move relative to the housing.

Further, the end of the adjusting screw that is close to the mounting seat is the driving end, the outer periphery of the driving end is provided with a limit protrusion, and the adjusting mechanism further includes a clamping piece, and the clamping piece is arranged on the end face of the mounting seat away from the reducing cavity, and is clamped. The adjusting screw can drive the mounting seat to move away from the reduced diameter cavity through the clamping piece, and the adjusting screw can drive the mounting seat to move toward the direction close to the reduced diameter cavity through the driving end.

Further, the diameter reducing module further includes: a fastener disposed between the housing and the mounting seat, and the fastener is used to fix the position of the mounting seat in the housing.

Further, a scale line is provided on the casing, and the scale line is used to measure the displacement of the pressing wheel.

Further, the diameter reducing device further includes a flange, the flange is arranged between two adjacent diameter reducing modules, and the flange is used to connect the two adjacent diameter reducing modules.

Further, the center lines of two adjacent diameter-reducing modules have an included angle.

Further, a plurality of diameter reducing modules are respectively arranged on both sides of the through hole.

Applying the technical solution of the present utility model, the diameter reducing device includes a frame and a plurality of diameter reducing modules, and the diameter reducing module includes a casing, two pressing wheels and an adjusting mechanism. The two pressure rollers are arranged in the casing, and the adjustment mechanism is arranged between the pressure rollers and the casing. The adjustment mechanism can adjust the distance between the two pressure rollers, so that the size of the reducing cavity can be adapted to the diameter of the workpiece. Equipped to meet the needs of reducing diameters of various sizes. The center lines of at least two diameter reducing modules are set with an included angle, so that the rolling force can be applied to different positions in the circumferential direction of the workpiece by using multiple diameter reducing modules, so as to ensure the roundness of the workpiece after the diameter reduction. , which improves the diameter reduction accuracy. By reducing the diameter of the smooth aluminum sheath through the diameter reducing device provided in the present application, the smooth aluminum sheath and the water blocking tape can be closely attached, reducing or avoiding the discharge phenomenon due to poor contact between the two, and improving the product quality.

Description of drawings

The accompanying drawings forming a part of the present application are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

Fig. 1 shows the structural representation of the diameter reducing device provided by the present utility model;

Fig. 2 shows the enlarged view at A in Fig. 1;

Fig. 3 shows the sectional view of the diameter reducing module provided by the present utility model;

FIG. 4 shows an enlarged view at B in FIG. 3 .

Wherein, the above-mentioned drawings include the following reference signs:

10, frame; 11, through hole; 20, reducing diameter module; 21, shell; 22, pressing wheel; 221, rotating shaft; 222, reducing diameter cavity; 23, adjusting mechanism; 231, adjusting screw rod; ; 2312, the limit protrusion; 232, the clip; 24, the mounting seat; 25, the fastener; 30, the flange.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application or uses in any way. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in FIG. 1 and FIG. 2 , an embodiment of the present invention provides a diameter reducing device, and the diameter reducing device includes a frame 10 and a plurality of diameter reducing modules 20 . Wherein, the frame 10 has a through hole 11, and the through hole 11 is used to pass through the workpiece. The diameter reducing module 20 is fixed on the frame 10 , and the diameter reducing module 20 includes a casing 21 , two pressing rollers 22 and an adjustment mechanism 23 . The two pinch rollers 22 are rotatably arranged in the housing 21, the rotation shafts 221 of the two pinch wheels 22 are parallel to each other, and there is a space between the two pinch wheels 22 to form a diameter-reducing cavity 222, and the extension direction of the diameter-reducing cavity 222 is the same as that of the other. The axial directions of the through holes 11 are coincident. The adjusting mechanism 23 is provided between the pressing roller 22 and the housing 21 , and the adjusting mechanism 23 can adjust the interval between the two pressing rollers 22 . The plurality of diameter reducing modules 20 are arranged in sequence along the axial direction of the through hole 11 , each diameter reducing module 20 has a center line perpendicular to the axis of the through hole 11 , and the center lines of at least two diameter reducing modules 20 have an included angle, and at least two diameter reducing modules 20 have an included angle. The cross-sectional areas of the two reduced diameter cavities 222 are not equal. In this embodiment, along the processing direction of the workpiece, the cross-sectional areas of the diameter-reducing cavities 222 of the plurality of diameter-reducing modules 20 gradually decrease.

Applying the technical solution of the present invention, the diameter reducing device includes a frame 10 and a plurality of diameter reducing modules 20 , and the diameter reducing module 20 includes a casing 21 , two pressing wheels 22 and an adjustment mechanism 23 . The two pressure rollers 22 are arranged in the casing 21, and the adjustment mechanism 23 is arranged between the pressure rollers 22 and the casing 21. The adjustment mechanism 23 can adjust the distance between the two pressure rollers 22, so that the size of the diameter-reducing cavity 222 is adjusted. It can be matched with the diameter of the workpiece to meet the reduction needs of various sizes. The center lines of the at least two diameter reducing modules 20 are set with an included angle, so that the rolling force can be applied to different positions in the circumferential direction of the workpiece by using the plurality of diameter reducing modules 20, so as to ensure the circular shape of the workpiece after the diameter reduction. The whole degree is improved, and the diameter reduction accuracy is improved. By reducing the diameter of the smooth aluminum sheath through the diameter reducing device provided in the present application, the smooth aluminum sheath and the water blocking tape can be closely attached, reducing or avoiding the discharge phenomenon due to poor contact between the two, and improving the product quality. At the same time, this arrangement can reduce the indentation and flash on the surface of the smooth aluminum sheath.

By aligning the extending direction of the reduced diameter cavity 222 with the axial direction of the through hole 11 , the smoothness of the workpiece to pass through can be ensured, and the roundness of the workpiece after processing can also be improved. By gradually reducing the cross-sectional area of the plurality of diameter-reducing cavities 222 along the moving direction of the workpiece, it is possible to reduce the diameter of the workpiece by stages, so that the deformation of the workpiece is more uniform, and the deformation of the workpiece due to deformation is reduced. stress. The smooth aluminum sheath in the cable is reduced in diameter by the device provided in the present application, which can reduce the gap between the smooth aluminum sheath and the cable buffer water-blocking tape, so that it can be in good contact, so that the surface field strength of the cable core is evenly distributed. , greatly reducing the probability of partial discharge and improving the product quality of the cable. Moreover, in the present application, the reduced diameter structure is set as a modular structure, which can facilitate design and production, facilitate disassembly and assembly by staff, and reduce production and maintenance costs.

Wherein, the distance between the two pressure rollers 22 can be adjusted by one adjusting mechanism, or the positions of the two pressure rollers 22 can be adjusted respectively by two adjusting mechanisms to achieve the purpose of adjusting the distance.

In this embodiment, each diameter reducing module 20 includes two adjusting mechanisms 23 , and the adjusting mechanisms 23 are provided in a one-to-one correspondence with the pressing rollers 22 . Each pressure roller 22 has a corresponding adjustment mechanism 23. When the distance between the two pressure rollers 22 is adjusted, the two pressure rollers 22 can be adjusted synchronously, so as to ensure that the extension direction of the diameter reducing cavity 222 and the through hole are The axial direction of 11 coincides, so as to further ensure the roundness and tolerance requirements of the smooth aluminum sheath.

The diameter reducing module 20 further includes a mounting seat 24 , the mounting seat 24 is movably arranged in the housing 21 , the rotating shaft 221 of the pressing wheel 22 is arranged on the mounting seat 24 , and a part of the pressing wheel 22 is located in the mounting seat 24 . The pressing roller 22 is fixed in the mounting seat 24 through the rotating shaft 221 , and the pressing roller 22 moves together with the mounting seat 24 in the housing 21 . With the above structure, it is convenient to fix and adjust the position of the pressing wheel 22 . In addition, the installation seat 24 can also facilitate the replacement and installation of the pressure rollers 22. By replacing the pressure rollers 22 with different sizes, the diameter reduction range of the diameter reduction module 20 can be further increased, and the adaptability of the device can be improved.

As shown in FIG. 3 and FIG. 4 , the adjusting mechanism 23 includes an adjusting screw 231 , the adjusting screw 231 is penetrated on the housing 21 and is threadedly connected with the housing 21 , and the adjusting screw 231 is located on the mounting seat 24 away from the diameter-reducing cavity 222 . On one side, the adjusting screw 231 is drivingly connected with the mounting seat 24 , and the adjusting screw 231 drives the pressing wheel 22 to move relative to the housing 21 through the mounting seat 24 . The adjusting screw 231 is located at both ends of the housing 21 , and the mounting seat 24 is driven to move by rotating the adjusting screw 231 . Using the threaded structure for adjustment can make the up and down movement of the mounting seat 24 more precise and improve the adjustment efficiency.

Specifically, one end of the adjusting screw 231 close to the mounting seat 24 is the driving end 2311 , the outer periphery of the driving end 2311 is provided with a limiting protrusion 2312 , and the adjusting mechanism 23 further includes a clamping part 232 , and the clamping part 232 is arranged on the side of the installation seat 24 . On the end face away from the diameter-reducing cavity 222 , the clamping member 232 and the limiting protrusion 2312 are limitedly matched so that the adjusting screw 231 can drive the mounting seat 24 to move away from the diameter-reducing cavity 222 through the clamping member 232 , and the adjusting screw 231 The mounting seat 24 can be driven to move toward the direction close to the diameter reducing cavity 222 through the driving end 2311 . In this embodiment, the clip 232 is a U-shaped clip, the clip 232 is fixed on the end surface of the mounting seat 24 by bolts, and the limiting protrusion 2312 is provided between the clip 232 and the end surface of the mounting seat 24 . When the adjusting screw 231 moves away from the diameter-reducing cavity 222, the limiting protrusion 2312 abuts against the end face of the clip 232, and the clip 232 can drive the mounting seat 24 to move away from the diameter-reducing cavity 222; adjusting When the screw 231 moves toward the diameter-reducing cavity 222 , the limiting protrusion 2312 abuts against the end surface of the mounting seat 24 , and pushes the mounting seat 24 to move in a direction close to the diameter-reducing cavity 222 . By adopting the above structure, the structure is simple, the installation and disassembly are convenient, and the operation of the staff is convenient.

Further, the diameter reducing module 20 further includes a fastener 25 , the fastener 25 is arranged between the housing 21 and the mounting seat 24 , and the fastener 25 is used to fix the position of the mounting seat 24 in the housing 21 . When the mounting seat 24 is moved to a desired position, the fastener 25 passes through the housing 21 and abuts with the mounting seat 24 to fix the mounting seat 24 on the housing 21 . In this embodiment, the fasteners 25 are bolts, and the diameter reducing module further includes a connecting plate. The connecting plate is provided with a waist-shaped hole along the moving direction of the mounting seat 24. When installing the seat 24, the connecting plate is in contact with the outer wall of the housing 21, the bolts pass through the connecting plate and the housing 21 in turn, and abut with the side wall of the mounting seat 24, and the mounting seat 24 is made by the pressure generated when the bolt is tightened. It is fixed in the housing 21 . By adopting the above structure, the structure is simple, the installation and disassembly are convenient, and the position of the installation seat 24 is easy to adjust.

Wherein, the casing 21 is provided with a scale line, and the scale line is used to measure the displacement of the pressing wheel 22 . In this embodiment, the size of the casing 21 is accurate and the surface roughness is small, and the scale line can be used to adjust the position of the pressure roller 22 in the casing 21 more accurately, and further ensure the diameter reduction cavity 222 and the through hole 11 . The coaxial arrangement ensures the roundness of the workpiece after processing and improves the product quality of the cable.

Further, the diameter reducing device further includes a flange 30 , the flange 30 is disposed between two adjacent diameter reducing modules 20 , and the flange 30 is used to connect two adjacent diameter reducing modules 20 . In this embodiment, two adjacent diameter-reducing modules 20 are connected by connecting chucks and bolts, so that multiple diameter-reducing modules 20 can be freely assembled as required, so as to reduce the diameter of cables with different cross-sections.

Specifically, the center lines of two adjacent diameter-reducing modules 20 have an included angle. In this embodiment, the included angle between the center lines of two adjacent diameter reducing modules 20 is 90°, and the diameter reducing cavity 222 is gradually reduced along the cable running direction. In the process of reducing the diameter, because the center lines of the two adjacent diameter reducing modules 20 have an included angle, the rolling force can be applied to different positions in the circumferential direction of the workpiece by using multiple diameter reducing modules 20, so that the processing can be guaranteed. The roundness of the parts after the diameter reduction is improved, and the precision of the diameter reduction is improved. And it can make the surface of the workpiece smooth and without scratches, and further improve the product quality of the cable.

The plurality of diameter reducing modules 20 are respectively disposed on both sides of the through hole 11 . In this embodiment, three diameter-reducing modules 20 are arranged on both sides of the through hole 11 , and the diameter-reducing modules 20 are arranged on both sides of the through hole 11 to ensure the stability of the rack 10 .

Through the technical solution of the present application, the diameter reducing device includes a frame 10 and a plurality of diameter reducing modules 20 , and the diameter reducing module 20 has a casing 21 , two pressing wheels 22 and an adjustment mechanism 23 . The adjusting mechanism 23 can adjust the distance between the two pressure rollers 22, so that the size of the diameter reducing cavity 222 can be matched with the diameter of the workpiece to be processed, so as to meet the diameter reducing needs of various sizes. The centerlines of the plurality of diameter reducing modules 20 are provided with an included angle, so that the plurality of diameter reducing modules 20 can be used to apply a rolling force to different positions in the circumferential direction of the workpiece, so that the roundness of the workpiece after the diameter reduction can be ensured. Reduced diameter accuracy is improved.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise. Meanwhile, it should be understood that, for the convenience of description, the dimensions of various parts shown in the accompanying drawings are not drawn in an actual proportional relationship. Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the authorized description. In all examples shown and discussed herein, any specific value should be construed as illustrative only and not as limiting. Accordingly, other examples of exemplary embodiments may have different values. It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further discussion in subsequent figures.

In the description of the present invention, it should be understood that orientation words such as "front, rear, top, bottom, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" etc. The orientation or positional relationship is usually based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and these orientations do not indicate and imply the indicated device unless otherwise stated. Or elements must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be construed as a limitation on the protection scope of the present invention; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

For ease of description, spatially relative terms, such as "on", "over", "on the surface", "above", etc., may be used herein to describe what is shown in the figures. The spatial positional relationship of one device or feature shown to other devices or features. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or features would then be oriented "below" or "over" the other devices or features under other devices or constructions". Thus, the exemplary term "above" can encompass both an orientation of "above" and "below." The device may also be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood To limit the scope of protection of the present invention.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. a diameter reducing device, is characterized in that, described diameter reducing device comprises: a frame (10), the frame (10) has a through hole (11), and the through hole (11) is used for passing the workpiece; A plurality of diameter-reducing modules (20), the diameter-reducing modules (20) are fixed on the rack (10), and each of the diameter-reducing modules (20) includes: housing (21); Two pressing rollers (22), the two pressing rollers (22) are rotatably arranged in the housing (21), the rotating shafts (221) of the two pressing rollers (22) are parallel to each other, and the two There is an interval between the pressing rollers (22) to form a diameter-reduced cavity (222), and the extension direction of the diameter-reduced cavity (222) coincides with the axial direction of the through hole (11); an adjusting mechanism (23), the adjusting mechanism (23) is provided between the pressing roller (22) and the housing (21), and the adjusting mechanism (23) is capable of adjusting the two pressing rollers (22) ) interval size; Wherein, a plurality of the diameter reducing modules (20) are arranged in sequence along the axial direction of the through hole (11), and each of the diameter reducing modules (20) has a center line perpendicular to the axis of the through hole (11) , the center lines of at least two of the diameter-reducing modules (20) have an included angle, and the cross-sectional areas of at least two of the diameter-reducing cavities (222) are not equal. 2 . The diameter reducing device according to claim 1 , wherein each diameter reducing module ( 20 ) comprises two adjusting mechanisms ( 23 ), and the adjusting mechanisms ( 23 ) are connected to the pressing wheel. 3 . (22) One-to-one corresponding settings. 3. The diameter reducing device according to claim 1, wherein the diameter reducing module (20) further comprises: A mounting seat (24) is movably arranged in the casing (21), the rotating shaft (221) of the pressing wheel (22) is arranged on the mounting seat (24), and the pressing wheel (22) Parts are located within the mount (24). 4 . The diameter reducing device according to claim 3 , wherein the adjusting mechanism ( 23 ) comprises an adjusting screw ( 231 ), and the adjusting screw ( 231 ) is penetrated on the casing ( 21 ), 4 . and is screwed with the casing (21), the adjusting screw (231) is located on the side of the mounting seat (24) away from the diameter-reducing cavity (222), and the adjusting screw (231) is connected to the mounting seat (24). The mounting seat (24) is drivingly connected, and the adjusting screw (231) drives the pressing wheel (22) to move relative to the housing (21) through the mounting seat (24). 5. The diameter reducing device according to claim 4, characterized in that, one end of the adjusting screw (231) close to the mounting seat (24) is the driving end (2311), and the end of the driving end (2311) is A limiting protrusion (2312) is provided on the outer periphery, and the adjusting mechanism (23) further includes a clamping piece (232), and the clamping piece (232) is arranged on the mounting seat (24) away from the diameter-reducing cavity On the end face of (222), the clip (232) and the limiting protrusion (2312) are limitedly engaged so that the adjusting screw (231) can drive the adjusting screw (231) through the clip (232). The mounting seat (24) moves in a direction away from the diameter reducing cavity (222), and the adjusting screw (231) can drive the mounting seat (24) to approach the reducing diameter cavity through the driving end (2311). (222) direction. 6. The diameter reducing device according to claim 3, wherein the diameter reducing module (20) further comprises: A fastener (25) is provided between the housing (21) and the mounting seat (24), and the fastener (25) is used to fix the mounting seat (24) on the housing Location within (21). 7 . The diameter reducing device according to claim 1 , wherein a scale line is provided on the casing ( 21 ), and the scale line is used to measure the displacement of the pressing wheel ( 22 ). 8 . 8 . The diameter reducing device according to claim 1 , wherein the diameter reducing device further comprises a flange ( 30 ), and the flange ( 30 ) is arranged on two adjacent diameter reducing modules ( 20 ). 9 . ), the flange (30) is used to connect two adjacent diameter reducing modules (20). 9 . The diameter reducing device according to claim 1 , wherein the center lines of two adjacent diameter reducing modules ( 20 ) have an included angle. 10 . 10 . The diameter reducing device according to claim 1 , wherein a plurality of the diameter reducing modules ( 20 ) are respectively arranged on both sides of the through hole ( 11 ). 11 .

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