A wire-wound resistor uniform winding device

Abstract

The utility model discloses a uniform winding device for a wire-wound resistor, comprising a base, a symmetrical vertical plate above the base, a first clamping assembly for assembling a ceramic frame and a second clamping assembly for assembling a resistance wire roller respectively arranged on the top and bottom of the vertical plate, the first clamping assembly and the second clamping assembly are provided with an electric slide rail and a pressing assembly, and the resistance wire in the resistance wire roller passes through the pressing assembly and the electric slide rail in sequence and is uniformly wound around the periphery of the ceramic frame. The device can adapt to the clamping of ceramic frames and resistance wire rollers of multiple specifications, and has a high reuse rate; the resistance wire is uniformly wound, and no manual pressing is required, and the pressing effect is good, and the work efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of wire-wound resistor processing, in particular to a wire-wound resistor uniform winding device. Background Art

[0002] Wirewound resistors are a type of resistor that is made by winding a resistance wire around an insulating frame and then undergoing an insulating packaging process. The resistance wire is generally made of nickel-chromium, manganese-copper and other alloys with a certain resistivity, and the insulating frame is generally made of ceramic, plastic, or a metal frame coated with an insulating layer. It has the characteristics of a small temperature coefficient and high precision. Among the wirewound resistors, there is a type of high-power wirewound resistor that uses ceramic as a frame and glaze or other heat-resistant and heat-dissipating insulating materials on the outer layer of the resistor. The characteristic of wirewound resistors is that they dissipate a large amount of power, which can reach hundreds of watts. They are mainly used as high-power loads and can work in an environment with a temperature of 150℃ to 300℃.

[0003] The existing winding device cannot adapt to the changes in the outer diameter and length of various ceramic skeletons during winding. At the same time, the resistance wire is unevenly wound and loose during the winding process, and manual adjustment is required, which may cause certain risks. Utility Model Content

[0004] The utility model aims to provide a uniform winding device for a wire-wound resistor, which solves the above-mentioned problems existing in the prior art by arranging a first clamping assembly, an electric slide rail, a clamping assembly and a second clamping assembly between two vertical plates to cooperate with each other.

[0005] In order to solve the above technical problems, the utility model adopts the following solutions:

[0006] A uniform winding device for a wire-wound resistor comprises a base, above which are symmetrical vertical plates, the top and bottom of which are respectively provided with a first clamping assembly for assembling a ceramic skeleton and a second clamping assembly for assembling a resistance wire roller, the first clamping assembly and the second clamping assembly being provided with an electric slide rail and a clamping assembly, the resistance wire in the resistance wire roller passes through the clamping assembly and the electric slide rail in sequence and is uniformly wound around the periphery of the ceramic skeleton.

[0007] Preferably, the first clamping assembly includes chuck one and chuck two, chuck one is provided with a rotating rod connected to a motor, chuck two is provided with a hydraulic rod one connected to a vertical plate located on the right side, and the ceramic skeleton is located between chuck one and chuck two.

[0008] Preferably, a bearing 1 is provided at the telescopic end of the hydraulic rod 1, and a connecting rod is provided at the side of the chuck 2 away from the ceramic framework, and the connecting rod is located in the bearing 1.

[0009] Preferably, a plurality of telescopic rods are provided on the opposite side of chuck one and chuck two, and the telescopic rods include a sleeve, a spring and a movable rod. The movable rod moves in the sleeve and is connected by the spring. A clamping plate is provided at the end of the movable rod located outside the sleeve, and a buffer pad is provided on the inner side of the clamping plate.

[0010] Preferably, the second clamping assembly includes rotating plate one and rotating plate two, a rotating shaft is provided on the right side of rotating plate two, a threaded hole is provided on the vertical plate on the right side, a threaded rod passes through the threaded hole, bearing two and a handle are provided at both ends of the threaded rod respectively, and the rotating shaft is located in bearing two.

[0011] Preferably, a sliding groove is opened on the side of the electric slide rail, a moving block is arranged in the sliding groove, the moving block is equipped with a hollow wire tube, the resistance wire passes through the wire tube, an infrared sensor is arranged on the inner wall of the wire tube, and the infrared sensor is used to monitor the tightness of the resistance wire.

[0012] Preferably, the clamping assembly includes a movable frame, both ends of which are fixed between two vertical plates, the movable frame is provided with a through slot running through from top to bottom, a buffer pad is provided on one side of the through slot, and a hydraulic rod 2 is provided on the other side of the through slot, the telescopic ends of the hydraulic rod 2 are connected to the pressure plate and the buffer pad in sequence.

[0013] Preferably, telescopic rods are provided on both sides of the second hydraulic rod, and the movable rods in the telescopic rods are fixedly connected to the pressing plate.

[0014] The utility model has the beneficial effects:

[0015] The utility model mainly arranges a first clamping assembly, wherein the chuck 1, the chuck 2, the telescopic rod and the hydraulic rod 1 in the first clamping assembly enable the ceramic frame to be clamped between the chuck 1 and the chuck 2 and rotated, and is suitable for clamping ceramic frames of various specifications, with a high reuse rate; the moving block 1, the moving block 2, the threaded rod and the second bearing in the second clamping assembly are suitable for clamping resistance wire rollers of various specifications;

[0016] The moving block in the electric linear rail drives the resistance wire to move at a constant speed so that it is evenly wound. The resistance wire has a high degree of winding uniformity. At the same time, the infrared sensor in the wire barrel monitors whether the resistance wire is in a relaxed state. When it is in a relaxed state, the hydraulic rod 2 in the clamping assembly is driven to perform a clamping operation. The telescopic rod makes the entire pressing plate firmly clamped, so that no manual clamping is required, the clamping effect is good, and the work efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the chuck 1 of the utility model;

[0019] Figure 3 It is a cross-sectional view of the electric slide rail of the utility model;

[0020] Figure 4 It is a top view of the clamping assembly of the utility model;

[0021] Figure 5 It is a side view of the clamping assembly of the utility model.

[0022] Figure markings: 1-base, 2-vertical plate, 20-threaded hole, 3-first clamping assembly, 30-chuck one, 300-chuck two, 31-clamping plate, 32-motor, 320-rotating rod, 33-first bearing, 34-hydraulic rod one, 35-telescopic rod, 350-sleeve, 351-spring, 352-movable rod, 36-connecting rod, 4-second clamping assembly, 40-rotating plate one, 400-rotating plate two, 41-rotating shaft, 42-second bearing, 43-threaded rod, 44-handle, 5-electric slide rail, 50-sliding groove, 51-moving block, 52-wire tube, 53-infrared sensor, 6-clamping assembly, 60-movable frame, 61-through groove, 62-pressing plate, 63-hydraulic rod two, 7-buffer pad, 8-ceramic skeleton, 80-resistance wire, 9-resistance wire roller. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0024] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "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 according to specific circumstances.

[0026] Example 1

[0027] Embodiment 1 of the utility model is a uniform winding device for a wire-wound resistor, comprising a base 1, a symmetrical vertical plate 2 is provided above the base 1, the top and bottom of the vertical plate 2 are respectively provided with a first clamping assembly 3 for assembling a ceramic skeleton 8 and a second clamping assembly 4 for assembling a resistance wire roller 9, the first clamping assembly 3 and the second clamping assembly 4 are provided with a straight electric slide rail 5 and a clamping assembly 6, the resistance wire 80 in the resistance wire roller 9 passes through the clamping assembly 6 and the electric slide rail 5 in turn and is uniformly wound around the periphery of the ceramic skeleton 8.

[0028] In this application, reference is made to Figures 1 to 5 The two vertical plates 2 arranged above the base 1 are the device body of the entire winding device. The first clamping assembly 3, the electric slide rail 5, the clamping assembly 6 and the second clamping assembly 4 are arranged between the vertical plates 2 from top to bottom. The resistance wire roller 9 is located in the second clamping assembly 4, and the ceramic skeleton 8 is located in the first clamping assembly 3. The resistance wire 80 in the resistance wire roller 9 passes through the clamping assembly 6 and the electric slide rail 5 and is wound on the outer peripheral surface of the ceramic skeleton 8. During the winding process, due to the existence of the electric slide rail 5, the electric slide rail 5 makes the resistance wire 80 passing through move at a uniform speed left and right, so that the resistance wire 80 is evenly wound on the outer peripheral surface of the ceramic skeleton 8, and the resistance wire 80 is evenly wound. In addition, the tightness of the resistance wire 80 can be monitored in real time in the electric slide rail 5. When the resistance wire 80 is in a relaxed state, the external controller will drive the clamping assembly 6 to fix the resistance wire 80. When the resistance wire 80 is detected to be in a tensioned state, the clamping assembly 6 is reset, and the resistance wire 80 is wound normally.

[0029] Furthermore, the first clamping assembly 3 and the second clamping assembly 4 can be used to clamp ceramic skeletons 8 and resistance wire rollers 9 of different specifications, thereby improving the reuse rate of the device.

[0030] In some preferred embodiments, the first clamping assembly 3 includes a chuck 1 30 and a chuck 2 300, the chuck 1 30 is provided with a rotating rod 320 connected to a motor 32, the chuck 2 300 is provided with a hydraulic rod 1 34 connected to the vertical plate 2 located on the right side, and the ceramic skeleton 8 is located between the chuck 1 30 and the chuck 2 300.

[0031] Specifically, refer to Figure 2The position of chuck 1 30 is fixed under the action of the rotating rod 320 and the motor 32 drives chuck 1 30 to rotate. Chuck 2 300 moves left and right on the right vertical plate 2. The distance between chuck 2 300 and chuck 1 30 is mainly adjusted under the drive of hydraulic rod 1 34, so that the first clamping assembly 3 and the second clamping assembly 4 can better assemble ceramic skeletons 8 of various lengths, and chuck 2 300 rotates at the telescopic end of hydraulic rod 1 34, so that the entire ceramic skeleton 8 rotates between the rotating rod 320 and hydraulic rod 1 34 to wind the resistance wire 80.

[0032] In some preferred embodiments, a bearing 1 is provided at the telescopic end of the hydraulic rod 1 34 , and a connecting rod 36 is provided on the side of the chuck 2 300 away from the ceramic skeleton 8 , and the connecting rod 36 is located in the bearing 1 .

[0033] The rotation of chuck 2 300 at the telescopic end of hydraulic rod 1 34 is mainly achieved by connecting rod 36 located in bearing 1. Bearing 1 is fixedly connected to the telescopic end of hydraulic rod 1 34. At the same time, one end of connecting rod 36 is located in bearing 1, and the other end of connecting rod 36 is fixedly connected to chuck 2 300, thereby realizing the rotation of chuck 2 300 in bearing 1.

[0034] The motor 32 first drives the rotating rod 320 to drive the chuck 1 30 to rotate, and the ceramic skeleton 8 connects the chuck 1 30 and the chuck 2 300 into a whole, so that the chuck 2 300 rotates. The rotation of the connecting rod 36 in the bearing 1 provides a movable space for the rotation of the chuck 2 300. At the same time, there is no need to provide a rotating drive device for the chuck 2 300, saving energy.

[0035] In some preferred embodiments, a plurality of telescopic rods 35 are provided on the opposite side of the chuck 1 30 and the chuck 2 300, and the telescopic rods 35 include a sleeve 350, a spring 351 and a movable rod 352. The movable rod 352 moves in the sleeve 350 and is connected through the spring 351. A clamping plate 31 is provided at the end of the movable rod 352 located outside the sleeve 350, and a buffer pad 7 is provided on the inner side of the clamping plate 31.

[0036] Specifically, the clamping of the two ends of the ceramic skeleton 8 by the chuck 1 30 and the chuck 2 300 is realized by a plurality of telescopic rods 35. When the outer peripheral surface of the ceramic skeleton 8 contacts the clamping plate 31, the movable rod 352 in the telescopic rod 35 compresses the spring 351 after being squeezed, so that the movable rod 352 moves into the sleeve 350 to adjust the clamping spacing between the plurality of clamping plates 31, so that the ceramic skeletons 8 of various outer diameters can be assembled. The buffer pad 7 arranged on the inner side of the clamping plate 31 can avoid damage to the outer peripheral surface of the ceramic skeleton 8. The buffer pad 7 can be made of rubber or other materials, and protrusions or grooves can be arranged on its surface to increase the friction of the buffer pad 7 on the ceramic skeleton 8, so as to clamp firmly.

[0037] In some preferred embodiments, the second clamping assembly 4 includes a rotating plate 1 40 and a rotating plate 2 400, a rotating shaft 41 is provided on the right side of the rotating plate 2 400, a threaded hole 20 is provided on the vertical plate 2 on the right side, a threaded rod 43 passes through the threaded hole 20, bearings 2 and handles 44 are provided at both ends of the threaded rod 43, and the rotating shaft 41 is located in bearing 2.

[0038] Specifically, the second clamping assembly 4 mainly clamps the resistance wire roller 9, so that the resistance wire roller 9 rotates during the winding process of the resistance wire 80, and the resistance wire 80 in the resistance wire roller 9 is transferred to the ceramic skeleton 8 for winding. The rotating plate 1 40 mainly rotates under the action of the external rotating motor 32 (the rotating motor 32 is not shown in the figure), so that the rotating plate 2 400 rotates inside the bearing 2 through the rotating shaft 41 under the connection action of the resistance wire roller 9, providing conditions for the rotation of the resistance wire roller 9. At the same time, the threaded rod 43 passes through the threaded hole 20, and the position of the threaded rod 43 in the vertical plate 2 is adjusted by the handle 44, so as to adjust the spacing between the rotating plate 1 40 and the rotating plate 2 400, so that this spacing is adapted to a variety of resistance wire rollers 9.

[0039] In some preferred embodiments, a sliding groove 50 is opened on the side of the electric slide rail 5, and a moving block 51 is arranged in the sliding groove 50. The moving block 51 is equipped with a hollow wire tube 52. The resistance wire 80 passes through the wire tube 52. The inner wall of the wire tube 52 is provided with an infrared sensor 53. The infrared sensor 53 is used to monitor the tightness of the resistance wire 80.

[0040] Specifically, refer to Figure 3 The uniform winding of the resistance wire 80 is mainly achieved by the electric slide rail 5. The moving block 51 reciprocates at a uniform speed in the sliding groove 50, so that the resistance wire 80 longitudinally passing through the wire barrel 52 moves at a uniform speed in the sliding groove 50, so that the resistance wire 80 is uniformly wound around the periphery of the ceramic skeleton 8. An infrared sensor 53 is arranged inside the wire barrel 52. When the resistance wire 80 passing through the wire barrel 52 is detected to be in a relaxed state by the infrared sensor 53, the external controller will drive the clamping assembly 6 to perform a clamping operation on the resistance wire 80 passing through the clamping assembly 6. When the infrared sensor 53 detects that the resistance wire 80 is in a tensioned state, the clamping assembly 6 cancels the clamping operation. This reciprocating operation is repeated to achieve the relaxation of the resistance wire 80 without manual adjustment, which is highly safe.

[0041] Example 2

[0042] This embodiment 2 is implemented on the basis of embodiment 1. The clamping assembly 6 includes a movable frame 60. The two ends of the movable frame 60 are fixed between the two vertical plates 2. The movable frame 60 is provided with a through slot 61 that runs through the upper and lower parts. A buffer pad 7 is provided on one side of the through slot 61. A hydraulic rod 63 is provided on the other side of the through slot 61. The telescopic end of the hydraulic rod 63 is connected to the pressing plate 62 and the buffer pad 7 in sequence. Telescopic rods 35 are provided on both sides of the hydraulic rod 63. The movable rod 352 in the telescopic rod 35 is fixedly connected to the pressing plate 62.

[0043] Specifically, refer to Figure 4 and Figure 5 The clamping assembly 6 of the present application includes a movable frame 60 with a through slot 61, a buffer pad 7 located in the through slot 61, a hydraulic rod 2 63, a pressure plate 62, and a telescopic rod 35. The resistance wire is located between the two buffer pads 7 for transmission. When the external controller performs clamping, the hydraulic rod 2 63 is driven to perform telescopic activities, so that the two buffer pads 7 are in contact with the resistance wire 80 for clamping. During the movement of the pressure plate 62, the telescopic rod 35, under the action of the spring 351, makes the two ends of the pressure plate 62 synchronously clamped, and the clamping is more firm. At the same time, when it is in an uncompressed state, the spring 351 in the telescopic rod 35 is in a compressed state, so that when it is in a clamped state, the telescopic rod 35 has a good clamping effect on the pressure plate 62.

[0044] When the utility model is used, the ceramic skeleton 8 and the resistance wire roller 9 are first installed respectively, the telescopic rod 35 in the chuck 1 30 and the chuck 2 300 fixes the ceramic skeleton 8, the resistance wire roller 9 is assembled between the rotating plate 1 40 and the rotating plate 2 400, and the resistance wire 80 of the resistance wire roller 9 passes through the through groove 61 in the clamping assembly 6 and the wire barrel 52 in the electric slide rail 5 in turn, and the moving block 51 moves at a constant speed in the electric slide rail 5, so that the outer periphery of the ceramic skeleton 8 of the resistance wire 80 is evenly wound, and when the infrared sensor 53 arranged in the wire barrel 52 detects that the resistance wire 80 is in a relaxed state, the external controller drives the hydraulic rod 2 63 to clamp the resistance wire 80, and when the resistance wire 80 is in a taut state again, the clamping operation is canceled, and the winding operation of the resistance wire 80 is still performed during the clamping operation.

[0045] The above is only a preferred embodiment of the utility model and does not limit the utility model in any form. According to the technical essence of the utility model, within the spirit and principles of the utility model, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the utility model.

Claims

1. A uniform winding device for a wire-wound resistor, characterized in that: The invention comprises a base (1), a symmetrical vertical plate (2) is arranged above the base (1), a first clamping assembly (3) for assembling a ceramic frame (8) and a second clamping assembly (4) for assembling a resistance wire roller (9) are respectively arranged at the top and bottom of the vertical plate (2), the first clamping assembly (3) and the second clamping assembly (4) are provided with an electric slide rail (5) and a clamping assembly (6), and the resistance wire (80) in the resistance wire roller (9) passes through the clamping assembly (6) and the electric slide rail (5) in sequence and is evenly wound around the periphery of the ceramic frame (8).

2. A wire-wound resistor uniform winding device according to claim 1, characterized in that: The first clamping assembly (3) comprises a chuck one (30) and a chuck two (300), wherein the chuck one (30) is provided with a rotating rod (320) connected to a motor (32), and the chuck two (300) is provided with a hydraulic rod one (34) connected to a vertical plate (2) located on the right side, and the ceramic skeleton (8) is located between the chuck one (30) and the chuck two (300).

3. A wire-wound resistor uniform winding device according to claim 2, characterized in that: The telescopic end of the hydraulic rod 1 (34) is provided with a bearing 1, and the side of the chuck 2 (300) away from the ceramic frame (8) is provided with a connecting rod (36), and the connecting rod (36) is located in the bearing 1.

4. A wire-wound resistor uniform winding device according to claim 2, characterized in that: A plurality of telescopic rods (35) are provided on the opposite side of the chuck 1 (30) and the chuck 2 (300), and the telescopic rods (35) include a sleeve (350), a spring (351) and a movable rod (352). The movable rod (352) moves in the sleeve (350) and is connected via the spring (351). A clamping plate (31) is provided at the end of the movable rod (352) located outside the sleeve (350), and a buffer pad (7) is provided on the inner side of the clamping plate (31).

5. A wire-wound resistor uniform winding device according to claim 2, characterized in that: The second clamping assembly (4) comprises a rotating plate 1 (40) and a rotating plate 2 (400), a rotating shaft (41) is provided on the right side of the rotating plate 2 (400), a threaded hole (20) is provided on the vertical plate (2) on the right side, a threaded rod (43) passes through the threaded hole (20), bearing 2 and a handle (44) are provided at both ends of the threaded rod (43), and the rotating shaft (41) is located in bearing 2.

6. A wire-wound resistor uniform winding device according to claim 2, characterized in that: A sliding groove (50) is provided on the side of the electric slide rail (5), a moving block (51) is provided in the sliding groove (50), the moving block (51) is equipped with a hollow wire tube (52), the resistance wire (80) passes through the wire tube (52), an infrared sensor (53) is provided on the inner wall of the wire tube (52), and the infrared sensor (53) is used to monitor the tightness of the resistance wire (80).

7. A wire-wound resistor uniform winding device according to claim 2, characterized in that: The clamping assembly (6) comprises a movable frame (60), the two ends of which are fixed between two vertical plates (2), the movable frame (60) is provided with a through slot (61) which runs through the two vertical plates, a buffer pad (7) is provided on one side of the through slot (61), and a hydraulic rod 2 (63) is provided on the other side of the through slot (61), and the telescopic end of the hydraulic rod 2 (63) is connected to the pressing plate (62) and the buffer pad (7) in sequence.

8. A wire-wound resistor uniform winding device according to claim 7, characterized in that: Telescopic rods (35) are provided on both sides of the second hydraulic rod (63), and the movable rods (352) in the telescopic rods (35) are fixedly connected to the pressing plate (62).

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