A coil winding machine

Abstract

The present application relates to the technical field of measuring equipment, and discloses a coil winding machine, including a main motor, which drives a fixed chuck and a movable chuck to rotate. The main motor is also connected to a driving rod in transmission connection, and a driven block is connected to the driving rod in transmission connection. The driven block is connected to a moving platform through a driving lever in transmission connection, and a wire-releasing assembly is arranged on the moving platform. The fulcrum of the driving lever can be relatively adjusted to adjust the transmission ratio at both ends of the driving lever. When the coil winding machine is winding, the main motor directly drives the fixed chuck and the movable chuck to rotate, and the main motor indirectly drives the moving platform to move, which are all rigid transmissions. The pitch is always kept fixed during winding, so as to improve the uniformity of winding. At the same time, by adjusting the relative position of the fulcrum of the driving lever, the transmission ratio at both ends of the driving lever is adjusted, thereby changing the transmission ratio when the main motor indirectly drives the moving platform, and thereby adjusting the winding pitch, so as to make the winding more flexible.

Description

Technical Field

[0001] The present application relates to the technical field of measuring equipment, and in particular to a coil winding machine. Background Art

[0002] Rogowski Coil, also known as Rogowski Coil, is a current sensor used to measure large AC current and high pulse current.

[0003] The Rogowski coil is composed of several turns of wire wound evenly and symmetrically on a non-ferromagnetic material of a certain shape and size. The winding accuracy of the wire directly affects the measurement accuracy of the Rogowski coil.

[0004] When the winding machine is working, the rotation speed and lateral speed of the substrate must maintain a specific ratio. If the two movements are independent of each other, it is difficult to maintain the ratio, resulting in uneven winding. If the two maintain rigid transmission, only coils with specific pitches can be produced, which is not flexible enough. Summary of the invention

[0005] The present application proposes a coil winding machine. During winding, a main motor directly drives a fixed chuck and a movable chuck to rotate and a main motor indirectly drives a moving platform to move, both of which are rigid transmissions. At the same time, the transmission ratio when the main motor indirectly drives the moving platform to move can be adjusted, and the use is flexible.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a coil winding machine, including a workbench, on which a fixed chuck and a movable chuck are provided, the fixed chuck is fixedly installed on the workbench, and the movable chuck can move laterally along the workbench, and a main motor is also provided on the workbench, and the main motor drives the fixed chuck and the movable chuck to rotate, and the main motor is also connected to a driving rod, and a driven block is connected to the driving rod, and the driven block is connected to a moving table through a driving lever, and a wire-releasing assembly is provided on the moving table, and the fulcrum of the driving lever can be relatively adjusted to adjust the transmission ratio at both ends of the driving lever.

[0007] Further, the driven block is connected to a driven cylinder, and the movement of the driven block drives the piston of the driven cylinder to move. The driven cylinder is connected to a first displacement reduction cylinder, and the diameter of the first displacement reduction cylinder is larger than the diameter of the driven cylinder. The first displacement reduction cylinder is transmission-connected to one end of a driving lever, and the other end of the driving lever is transmission-connected to a second displacement reduction cylinder. The second displacement reduction cylinder is connected to a main driving cylinder, and the piston rod of the main driving cylinder is connected to a moving platform. The diameter of the main driving cylinder is smaller than the diameter of the second displacement reduction cylinder.

[0008] Furthermore, a spring is provided on the second displacement reduction oil cylinder, and the elastic force of the spring makes the piston rod of the second displacement reduction oil cylinder always close to the end of the driving lever.

[0009] Furthermore, the driving lever includes a connecting frame fixedly connected to the workbench, the connecting frame is connected to a rotating frame via a rotating shaft, the rotating frame is connected to a driving member, the driving member is transmission-connected to an adjusting rod, the driving member can drive the adjusting rod to move laterally, and pressure rollers are provided at both ends of the adjusting rod, and the plane where the axes of the pressure rollers on both sides are located is in the same plane as the axis of the rotating shaft.

[0010] Furthermore, a synchronization shaft is provided between the dynamic chuck and the fixed chuck, and two ends of the synchronization shaft are respectively transmission-connected with the dynamic chuck and the fixed chuck.

[0011] Furthermore, the synchronization shaft is telescopic.

[0012] Furthermore, the movable platform is fixedly connected with a positioning plate, and when the positioning plate is pressed against the wire clamp, the wire paying-off head of the wire paying-off assembly on the movable platform is aligned with the corresponding winding starting position on the wire clamp.

[0013] Furthermore, the main driving cylinder is connected to the moving platform via a sleeve, and the axial position of the sleeve relative to the main driving cylinder can be adjusted.

[0014] Beneficial effects of the present invention:

[0015] The present application provides a coil winding machine, in which, during winding, a main motor directly drives a fixed chuck and a movable chuck to rotate, and the main motor indirectly drives a movable table to move, both of which are rigid transmissions. During winding, the pitch is always kept fixed, thereby improving the uniformity of winding.

[0016] By adjusting the relative position of the driving lever fulcrum, the transmission ratio at both ends of the driving lever is adjusted, thereby changing the transmission ratio when the main motor indirectly drives the moving platform, and then adjusting the winding pitch to make the winding more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute a part of the specification, illustrate the embodiments disclosed in the present application and, together with the description, serve to explain the principles of the embodiments disclosed in the present application.

[0018] The embodiments disclosed in the present application may be more clearly understood according to the following detailed description with reference to the accompanying drawings, in which:

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a front view of the present invention;

[0021] Figure 3 A bottom view of the present invention;

[0022] Figure 4 is a schematic diagram of a synchronous shaft in the present invention;

[0023] Figure 5 It is a top view of the present invention.

[0024] In the figure: 1. workbench; 2. fixed chuck; 3. movable chuck; 4. main motor; 5. main driving cylinder; 6. moving table; 7. driven cylinder; 8. driving rod; 9. driven block; 10. driving lever; 101. connecting frame; 102. rotating frame; 103. adjusting rod; 104. driving member; 105. pressure roller; 106. spring; 11. first displacement reduction cylinder; 12. second displacement reduction cylinder; 13. synchronous shaft; 131. inner rod; 132. outer tube; 133. spline; 14. gear set; 15. wire clamp; 16. positioning plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. Embodiment 1

[0026] See also Figure 1-Figure 3 A coil winding machine comprises a workbench 1, on which a fixed chuck 2 and a movable chuck 3 are arranged. The fixed chuck 2 is fixedly mounted on the workbench 1, and a track or slide groove for the movable chuck 3 to slide is arranged on the workbench 1. The position of the movable chuck 3 is adjusted so that the spacing between the fixed chuck 2 and the movable chuck 3 corresponds to the substrate, and the two ends of the rod-shaped substrate are clamped by the fixed chuck 2 and the movable chuck 3 respectively. If the substrate is flexible, the position of the movable chuck 3 is adjusted to straighten the rod-shaped substrate. In this embodiment, a screw rod is connected to the bottom of the movable chuck 3, and the screw rod rotates to drive the movable chuck 3 to move. A main motor 4 is also provided on the workbench 1, and the main motor 4 drives the fixed chuck 2 and the movable chuck 3 to rotate. The main motor 4 is also connected to a driving rod 8, and the driving rod 8 is connected to a driven block 9. The driven block 9 is connected to a moving table 6 through a driving lever 10. A wire-releasing assembly is provided on the moving table 6. A slide rail or a slide groove for sliding the moving table 6 is provided on the workbench 1. The fulcrum of the driving lever 10 can be relatively adjusted to adjust the transmission ratio of the driving lever 10, thereby adjusting the transmission ratio of the driving rod 8 and the moving table 6, and adjusting the pitch during winding.

[0027] Since the lateral movement of the movable table 6 is large when producing the Rogowski coil, a larger driving lever 10 is required to adapt to the movement of the movable table 6. In order to reduce the size of the driving lever 10, a plurality of groups of hydraulic cylinders with different diameters are arranged between the follower block 9 and the movable table 6 to reduce the movement of both ends of the driving lever 10.

[0028] See also Figure 2 The driven block 9 is connected to the driven cylinder 7. The movement of the driven block 9 drives the piston of the driven cylinder 7 to move. The driven cylinder 7 is connected to the first displacement reduction cylinder 11. The diameter of the first displacement reduction cylinder 11 is larger than the diameter of the driven cylinder 7. The hydraulic oil in the driven cylinder 7 enters the first displacement reduction cylinder 11 to lift the hydraulic oil of the first displacement reduction cylinder 11. Since the diameter of the first displacement reduction cylinder 11 is larger, the movement of the piston rod of the first displacement reduction cylinder 11 is smaller. The first displacement reduction cylinder 11 is transmission-connected to one end of the driving lever 10. The other end of the driving lever 10 is transmission-connected to the second displacement reduction cylinder 12. When the first displacement reduction cylinder 11 is lifted, the second displacement reduction cylinder 12 contracts. The second displacement reduction cylinder 12 is connected to the main driving cylinder 5, and the piston rod of the main driving cylinder 5 is connected to the moving platform 6. The diameter of the main driving cylinder 5 is smaller than the diameter of the second displacement reduction cylinder 12. The displacement of the second displacement reduction cylinder 12 is amplified to meet the feeding needs of the moving platform 6. Through two direct conversions of the hydraulic cylinder, the displacement of the driving lever 10 is reduced, and the size requirement of the driving lever 10 is reduced. In order to reduce space, the driving rod 8, the driven block 9, the driving lever 10, the first displacement reduction cylinder 11 and the second displacement reduction cylinder 12 are all provided at the bottom of the workbench 1. The main motor 4 is connected to the driving rod 8 through a gear set 14. In other embodiments, the driving rod 8 can also be driven to rotate by a synchronous belt.

[0029] A spring 106 is provided on the second displacement reduction cylinder 12. The elastic force of the spring 106 resets the second displacement reduction cylinder 12, thereby resetting the first displacement reduction cylinder 11, and at the same time keeps both ends of the driving lever 10 always in close contact with the first displacement reduction cylinder 11 and the second displacement reduction cylinder 12.

[0030] The driving lever 10 includes a connecting frame 101 fixedly connected to the workbench 1, the connecting frame 101 is connected to a rotating frame 102 via a rotating shaft, the rotating frame 102 is connected to a driving member 104, the driving member 104 is transmission-connected to an adjusting rod 103, the driving member 104 can drive the adjusting rod 103 to move laterally, both ends of the adjusting rod 103 are provided with pressure rollers 105, and the planes where the axes of the pressure rollers 105 on both sides are located pass through the rotating shaft. In this embodiment, the driving member 104 is a screw rod, which is threadedly connected to the rotating frame 102, and a motor is provided at one end of the driving member 104, which is installed on the adjusting rod 103. When the driving member 104 rotates, it drives the adjusting rod 103 to move laterally, and a bearing corresponding to the driving member 104 is provided on the adjusting rod 103. In other implementations, the relative position of the fulcrum can also be adjusted by telescopic means.

[0031] See also Figure 4A synchronization shaft 13 is provided between the dynamic chuck 3 and the fixed chuck 2. Both ends of the synchronization shaft 13 are respectively connected to the dynamic chuck 3 and the fixed chuck 2 for transmission. Gears are connected to the fixed chuck 2 and the dynamic chuck 3. Gears corresponding to them are provided at both ends of the synchronization shaft 13. Under the action of the synchronization shaft 13, the fixed chuck 2 and the dynamic chuck 3 rotate synchronously.

[0032] The synchronization shaft 13 is telescopic and includes an inner rod 131 and an outer tube 132 . The inner rod 131 and the outer tube 132 are connected by a spline 133 . The inner rod 131 and the outer tube 132 can slide relative to each other but cannot rotate relative to each other to adapt to the position adjustment of the dynamic chuck 3 .

[0033] See also Figure 5 Due to temperature changes, each time the driven block 9 is reset, the movable table 6 does not necessarily return to the initial position. The movable table 6 is fixedly connected to a positioning plate 16. When the positioning plate 16 is close to the wire clamp 15, the wire pay-off head of the wire pay-off assembly on the movable table 6 is aligned with the corresponding winding starting position on the wire clamp 15. When the fixed chuck 2 and the movable chuck 3 start to rotate, the movable table 6 moves at a specific feed speed to ensure that the winding is a specific pitch. The main drive cylinder 5 is connected to the movable table 6 through a sleeve, and the axial position of the sleeve relative to the main drive cylinder 5 can be adjusted. When the displacement of the movable table 6 is too large and leaves the area where the substrate is located, the position of the movable table is adjusted through the sleeve.

[0034] When winding, the wire clamp 15 is moved so that the wire clamp 15 is close to the positioning plate 16, and the wire clamp 15 clamps the starting position of the winding. The main motor 4 drives the fixed chuck 2 and the movable chuck 3 to rotate, and at the same time drives the driving rod 8 to rotate. The driving rod 8 drives the driven block 9 to move, and the driven block 9 drives the driven cylinder 7 to shrink. The hydraulic oil in the driven cylinder 7 is pressed into the first displacement reduction cylinder 11, the first displacement reduction cylinder 11 is extended, and the pressure is transmitted to the second displacement reduction cylinder 12 through the driving lever 10. The second displacement reduction cylinder 12 shrinks, and the hydraulic oil is pressed into the main driving cylinder 5. The main driving cylinder 5 drives the moving table 6 to move, and drives the wire-releasing assembly to move. In this process, the feed of the wire-releasing assembly maintains a fixed ratio with the rotation of the substrate, and the winding pitch remains consistent.

[0035] When the pitch needs to be adjusted, the position of the adjusting rod 103 is adjusted through the driving member 104, and the transmission ratio at both ends of the driving lever 10 is adjusted, thereby changing the ratio of the feeding speed of the pay-off assembly and the rotation speed of the substrate.

Claims

1. A coil winding machine, comprising a workbench (1), wherein the workbench (1) is provided with a fixed chuck (2) and a movable chuck (3), wherein the fixed chuck (2) is fixedly mounted on the workbench (1), and the movable chuck (3) can move laterally along the workbench (1), and wherein the workbench (1) is further provided with a main motor (4), wherein the main motor (4) drives the fixed chuck (2) and the movable chuck (3) to rotate, wherein: The main motor (4) is also transmission-connected to a driving rod (8), and a driven block (9) is transmission-connected to the driving rod (8). The driven block (9) is transmission-connected to a moving platform (6) via a driving lever (10), and a wire-releasing assembly is provided on the moving platform (6). The fulcrum of the driving lever (10) can be relatively adjusted to adjust the transmission ratio at both ends of the driving lever (10). The driven block (9) is connected to a driven oil cylinder (7), and the movement of the driven block (9) drives the piston of the driven oil cylinder (7) to move. The driven oil cylinder (7) is connected to a first The first displacement reduction oil cylinder (11) has a diameter greater than that of the driven oil cylinder (7); the first displacement reduction oil cylinder (11) is transmission-connected to one end of a driving lever (10); the other end of the driving lever (10) is transmission-connected to a second displacement reduction oil cylinder (12); the second displacement reduction oil cylinder (12) is connected to a main driving oil cylinder (5); a piston rod of the main driving oil cylinder (5) is connected to a moving platform (6); and the diameter of the main driving oil cylinder (5) is smaller than that of the second displacement reduction oil cylinder (12).

2. The coil winding machine according to claim 1, characterized in that The second displacement reduction oil cylinder (12) is provided with a spring (106), and the elastic force of the spring (106) causes the piston rod of the second displacement reduction oil cylinder (12) to always be in close contact with the end of the driving lever (10).

3. The coil winding machine according to claim 1, characterized in that The driving lever (10) comprises a connecting frame (101) fixedly connected to the workbench (1), the connecting frame (101) being connected to a rotating frame (102) via a rotating shaft, the rotating frame (102) being connected to a driving member (104), the driving member (104) being drivingly connected to an adjusting rod (103), the driving member (104) being capable of driving the adjusting rod (103) to move laterally, and pressure rollers (105) being provided at both ends of the adjusting rod (103), the plane where the axes of the pressure rollers (105) on both sides are located being in the same plane as the axis of the rotating shaft.

4. The coil winding machine according to claim 1, characterized in that A synchronization shaft (13) is provided between the dynamic chuck (3) and the fixed chuck (2), and two ends of the synchronization shaft (13) are respectively transmission-connected to the dynamic chuck (3) and the fixed chuck (2).

5. The coil winding machine according to claim 4, characterized in that The synchronization shaft (13) is telescopic.

6. The coil winding machine according to claim 1, characterized in that The movable platform (6) is fixedly connected to a positioning plate (16), and when the positioning plate (16) is in close contact with the wire clamp (15), a wire pay-off head of a wire pay-off assembly on the movable platform (6) is aligned with a corresponding winding starting position on the wire clamp (15).

7. The coil winding machine according to claim 6, characterized in that The main drive cylinder (5) is connected to the moving platform (6) via a sleeve, and the axial position of the sleeve relative to the main drive cylinder (5) can be adjusted.

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