Follow-up countershaft

Abstract

The utility model provides a follow-up countershaft, which relates to the technical field of transmission and comprises a top cylinder assembly, a transmission mechanism and an opening and closing mechanism. The top cylinder assembly comprises a telescopic sleeve and a top rod; the other end of the telescopic sleeve is provided with a bottom face, and the bottom face extends outwards along the axis to form a connecting shaft. One end of the ejector rod is sleeved with an opening of the telescopic sleeve, and a spring is installed in the telescopic sleeve. The end face of the other end of the ejector rod is an abutting face, and the abutting face is used for positioning the flat part to be wound. The transmission mechanism is used for connecting the spindle and the connecting shaft of the winding machine and driving the ejector rod and the spindle to rotate synchronously. The opening and closing mechanism is connected with the top cylinder assembly and used for driving the top cylinder assembly to move so that the abutting face can abut against or be separated from the flat part. The clamping device is installed on the winding machine, can be matched with a main shaft of the winding machine to complete clamping and winding of flat parts, and is stable in installation and high in reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission, in particular to a follower shaft. Background Art

[0002] Existing winding machines generally wind parts with clamping positions at both ends, such as iron cores and magnetic bars. During winding, one end of the part is fixed on the main shaft of the winding machine, and the other end is clamped by the follower shaft to prevent the part from falling during the winding process.

[0003] With the development of technology, some flat parts need to be wound with enameled wire on their flat sides, and flat parts do not have a position for the follower shaft to clamp them. Therefore, existing winding machines are difficult to clamp flat parts and cannot complete winding. Utility Model Content

[0004] The utility model aims to provide a follower shaft used in a winding machine, which can enable a flat part to rotate along with a main shaft of the winding machine.

[0005] In order to solve the above problems, the technical solutions adopted by the present invention are as follows:

[0006] A follower countershaft is installed on a winding machine and comprises a top cylinder assembly, a transmission mechanism and an opening and closing mechanism.

[0007] The ejector assembly includes a telescopic sleeve and a ejector rod; one end of the telescopic sleeve is open, and the other end is provided with a bottom surface, and the bottom surface extends a connecting shaft outward along the axis; one end of the ejector rod is sleeved in the opening of the telescopic sleeve, and a spring is installed inside the telescopic sleeve; the end surface of the other end of the ejector rod is a supporting surface, which is used to position the flat parts to be wound.

[0008] The transmission mechanism is used to connect the main shaft and the connecting shaft of the winding machine, driving the ejector rod to rotate synchronously with the main shaft.

[0009] The opening and closing mechanism is connected with the top cylinder assembly and is used for driving the top cylinder assembly to move so that the top abutting surface abuts against or separates from the flat part.

[0010] Furthermore, the flat part has a plurality of skeleton fulcrums, and the supporting surface is provided with a plurality of support angles corresponding to the positions of the skeleton fulcrums, and the support angles are used to support the skeleton fulcrums on the flat part.

[0011] Furthermore, the flat part is wound with enameled wires between several skeleton support points, and avoidance grooves corresponding to the positions of the enameled wires are provided between several support angles, and the avoidance grooves are used to avoid the enameled wires on the flat part.

[0012] Furthermore, there are several top cylinder assemblies, and the connecting shafts of the several top cylinder assemblies are all mounted on the same strip-shaped mounting plate through bearings, and the several top cylinder assemblies are evenly distributed on the mounting plate.

[0013] Furthermore, the transmission mechanism includes two transmission shafts, which are mounted on the mounting plate through bearings and are respectively arranged on both sides of the plurality of top cylinder assemblies. Both transmission shafts are connected to the top cylinder assemblies through synchronous belts.

[0014] Furthermore, there are several synchronous belts, each of which is used to connect two adjacent top cylinder assemblies, or to connect adjacent transmission shafts and top cylinder assemblies.

[0015] Furthermore, the transmission shaft includes a first shaft section and a second shaft section, the second shaft section is cylindrical, the first shaft section is nested in the second shaft section, and the two shaft sections are connected via a ball spline.

[0016] Furthermore, the opening and closing mechanism includes a guide rod and a cylinder. The end of the guide rod is connected to the mounting plate. The cylinder is used to drive the guide rod so that the guide rod pushes the mounting plate to move.

[0017] Furthermore, the invention also comprises a profiling shaft matched with the push rod, a profiling groove for installing a flat part is opened on the profiling shaft, and the profiling shaft is installed on the main shaft.

[0018] Furthermore, a circular hole is provided in the middle of the profiling groove, and a magnet is installed in the circular hole.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The utility model is installed on a winding machine. The spring in the ejector assembly applies elastic force to the ejector rod, allowing the ejector rod to press against the flat part, thereby completing the clamping of the flat part and achieving winding of enameled wire on the flat side of the flat part. The utility model also has a simple structure. By driving the ejector assembly to move as a whole, the ejector rod can be pressed against and released from the flat part, which can improve the installation reliability of the flat part, reduce the risk of the flat part falling, and provide high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of the follower shaft in an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the installation of flat parts in an embodiment of the present utility model;

[0023] Figure 3 This is a side view of the top cylinder assembly in the embodiment of the present utility model;

[0024] Figure 4 This is a schematic structural diagram of the ejector rod in an embodiment of the present utility model;

[0025] Figure 5 A top view of the follower shaft in an embodiment of the present utility model;

[0026] Figure 6 A half-section schematic diagram of a transmission shaft in an embodiment of the present utility model;

[0027] Figure 7 It is a structural schematic diagram of the contoured shaft in an embodiment of the present utility model.

[0028] Among them, 1: ejector assembly; 2: transmission mechanism; 3: opening and closing mechanism; 4: telescopic sleeve; 5: ejector rod; 6: connecting shaft; 7: spring; 8: supporting surface; 9: flat part; 10: main shaft; 11: support angle; 12: avoidance groove; 13: mounting plate; 14: transmission shaft; 15: synchronous belt; 16: first shaft section; 17: second shaft section; 18: ball spline; 19: third shaft section; 20: guide rod; 21: cylinder; 22: contoured shaft; 23: contoured groove; 24: magnet; 25: winding machine frame; 26: guide sleeve. DETAILED DESCRIPTION

[0029] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[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 embodiments described 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] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0032] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of these features.

[0033] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0034] In one embodiment of the present invention, a follower shaft is provided, which is installed on a winding machine. Figure 1 , which is a schematic structural diagram of the follower shaft in the embodiment. The follower shaft provided in this embodiment includes: a top cylinder assembly 1, a transmission mechanism 2 and an opening and closing mechanism 3.

[0035] Among them, such as Figure 2 The figure shows a schematic diagram of the installation of a flat part. The follower sub-shaft provided by the present invention is mainly installed on the winding machine, and cooperates with the main shaft 10 of the winding machine to clamp the flat part 9 with a flat shape. The main shaft 10 of the winding machine is fixedly mounted on the frame 25 of the winding machine and is connected to the motor of the winding machine. The main shaft 10 is preferably provided with a clamping structure that cooperates with the top cylinder assembly 1, and the clamping structure can be a claw-shaped structure or a contoured structure. Taking the axial direction of the main shaft 10 as the Z-axis, the thickness of the flat part 9 in the Z-axis direction is relatively thin, and the four sides parallel to the Z-axis are flat sides. The technical problem to be solved in this embodiment is how to wind on the flat side of the flat part. The follower sub-shaft provided in this embodiment can cooperate with the main shaft 10 to clamp and fix the flat part 9 along the Z-axis direction, so that the flat part 9 can rotate with the axis of the main shaft 10 (i.e., the Z-axis), thereby achieving the purpose of winding on the flat side of the flat part 9. In this embodiment, the top cylinder assembly 1 is disposed opposite the main shaft 10 and bears against the end surface of the flat part 9 along the Z-axis, which end surface is perpendicular to the Z-axis. The transmission mechanism 2 can be fixed to the frame 25 of the winding machine and is used to transmit the rotation of the main shaft 10 to the top cylinder assembly 1, achieving synchronous rotation and reducing wear on the flat part 9 caused by the main shaft 10 and the top cylinder assembly 1. The opening and closing mechanism 3 can also be fixed to the frame 25 of the winding machine and acts on the entire top cylinder assembly 1, allowing it to move closer to or farther from the main shaft 10 along the Z-axis, thereby clamping and releasing the flat part 9.

[0036] like Figure 3 The figure shows a side view of the ejector assembly in this embodiment. The ejector assembly 1 includes a telescopic sleeve 4 and a ejector rod 5. One end of the telescopic sleeve 4 is open, and the other end is provided with a bottom surface, and the bottom surface extends outward along the axis to form a connecting shaft 6. One end of the ejector rod 5 is sleeved in the opening of the telescopic sleeve 4, and a spring 7 is installed inside the telescopic sleeve 4. The end surface of the other end of the ejector rod 5 is a supporting surface 8, which is used to position the flat part 9 to be wound.

[0037] The spring 7 installed within the telescopic sleeve 4 can provide elastic force to the push rod 5, so that the support surface 8 of the push rod 5 has elastic force against the flat part 9. The support surface 8 can also position the flat part 9, preventing the flat part 9 from falling during the winding process and improving the installation stability of the flat part 9. The push rod 5 is mounted on one open end of the telescopic sleeve 4, and the connecting shaft 6 at the other end can be connected to the transmission mechanism 2 via a gear or pulley. A limiting structure can be provided between the push rod 5 and the telescopic sleeve 4, allowing the push rod 5 to move along the axis of the telescopic sleeve 4 while remaining relatively stationary in the circumferential direction, thereby transmitting torque and causing the push rod 5 to rotate with the telescopic sleeve 4.

[0038] The transmission mechanism 2 is used to connect the main shaft 10 of the winding machine and the connecting shaft 6, driving the push rod 5 to rotate synchronously with the main shaft 10.

[0039] The winding machine's main shaft 10 is driven by a motor and is used to rotate the flat part 9 about the Z axis, allowing the enameled wire to be wound around the flat side of the flat part 9. The transmission mechanism 2 is mounted on the winding machine's frame 25 and can be any mechanism capable of transmitting rotational motion, preferably a drive shaft mechanism. The two ends of the drive shaft are connected to the main shaft 10 and the connecting shaft 6 respectively through a synchronous belt mechanism.

[0040] The opening and closing mechanism 3 is connected to the ejector assembly 1 and is used to drive the ejector assembly 1 to move so that the ejector rod 5 abuts against or separates from the flat part 9 .

[0041] The opening and closing mechanism 3 is mounted on the frame 25 of the winding machine and can be any mechanism capable of driving the ejector assembly 1 to move along its axis, thereby achieving opening and closing movement between the ejector rod and the main shaft 10, thereby facilitating the loading or unloading of the flat parts 9. Preferably, the mechanism is a mechanism with an electric cylinder, a pneumatic cylinder, or an electric push rod. Furthermore, preferably, the opening and closing mechanism 3 can accurately control the distance that the ejector assembly 1 moves.

[0042] This embodiment is installed on a winding machine. A spring 7 in the ejector assembly 1 applies elastic force to the ejector pin 5, causing the ejector pin 5 to press against the flat part 9, thereby clamping the flat part 9 and allowing enameled wire to be wound around the flat side of the flat part 9. Furthermore, this embodiment has a simple structure. By driving the ejector assembly 1 to move as a whole, the ejector pin 5 can be moved against and away from the flat part 9, thereby improving the installation reliability of the flat part 9, reducing the risk of the flat part 9 falling, and providing high stability.

[0043] like Figure 4 The figure is a schematic diagram of the structure of the push rod in this embodiment, and is a schematic diagram of the structure of the push rod 5 in this embodiment. In this embodiment, the flat part 9 has a plurality of skeleton fulcrums, and the supporting surface 8 is provided with a plurality of support angles 11 corresponding to the positions of the skeleton fulcrums. The support angles 11 are used to support the skeleton fulcrums on the flat part 9.

[0044] In this embodiment, the flat component 9 is square-shaped and has four pivot points located near its four corners. The support angles 11 can be protrusions on the top surface 8 or recesses machined into the top surface 8 to form convex corners. These support angles 11 can be evenly distributed across the top surface 8, contacting the pivot points of the flat component 9 and providing support during use. Compared to contact between the entire top surface 8 and the flat component 9, this embodiment reduces the contact area, thereby reducing the likelihood of damage to the flat component 9 due to friction.

[0045] In this embodiment, the flat part 9 is wound with enameled wires between several skeleton support points, and avoidance grooves 12 corresponding to the positions of the enameled wires are provided between several support angles 11. The avoidance grooves 12 are used to avoid the enameled wires on the flat part 9.

[0046] The flat part 9 may be wound with enameled wire around the X-axis and Y-axis between several skeletal support points. This enameled wire will cover the two end faces of the flat part 9 perpendicular to the Z-axis. If these end faces directly contact the top support surface 8 of the ejector pin 5, the paint layer on the enameled wire will be easily damaged. The structure of the avoidance groove 12 in this embodiment can be designed based on the coverage of the enameled wire on the flat part 9. Therefore, the provision of the avoidance groove 12 in this embodiment can reduce contact between the top support surface 8 and the enameled wire, reducing friction between the enameled wire and the top support surface 8, thereby improving the yield rate.

[0047] like Figure 5 As shown, it is a top view of the follower shaft in this embodiment. In this embodiment, there are several top cylinder assemblies 1, and the connecting shafts 6 of several top cylinder assemblies 1 are all mounted on the same strip-shaped mounting plate 13 through bearings. Several top cylinder assemblies 1 are evenly distributed on the mounting plate 13.

[0048] The winding machine in this embodiment has a plurality of spindles 10 arranged side by side, and the ends of the spindles 10 are connected to the motor through a synchronous belt. Figure 5 The motor is omitted. Several top cylinder assemblies 1 are arranged side by side, which can be matched with a winding machine with multiple main shafts 10 to improve production efficiency. Preferably, the spacing between the top cylinder assemblies 1 is the same, and they can be arranged in the same row, or in multiple rows according to the main shaft 10 of the winding machine. A corresponding number of mounting holes are provided on the mounting plate 13, and each connecting shaft 6 can be installed through a pair of bearings. A bearing cover plate is provided on the mounting plate 13 to fix the bearings, and the axial position of the bearings and the connecting shaft 6 is fixed by a U-shaped nut. A pulley is installed on the shaft end of the connecting shaft 6 for connecting to the transmission mechanism 2.

[0049] In this embodiment, the transmission mechanism 2 includes two transmission shafts 14, which are mounted on the mounting plate 13 through bearings and are respectively arranged on both sides of several top cylinder assemblies 1. The two transmission shafts 14 are connected to the top cylinder assembly 1 through a pulley.

[0050] The ends of both the transmission shaft 14 and the connecting shaft 6 are equipped with pulleys for mounting a synchronous belt. By transmitting the rotational motion of the main shaft 10 from both sides via the two transmission shafts 14, the synchronization between the ejector pin 5 and the main shaft 10 is improved, reducing relative rotation between the ejector pin 5 and the flat part 9, thereby reducing friction. In this embodiment, the rotational motion transmitted by the two transmission shafts 14 can be mutually corrected. Even when a large number of ejector barrel assemblies 1 are installed, the rotational motion of each ejector barrel assembly 1 can still be synchronized with the corresponding main shaft 10, reducing relative rotation between the ejector pin 5 and the flat part 9 and improving processing quality.

[0051] In this embodiment, there are several synchronous belts 15 , and each synchronous belt 15 is used to connect two adjacent top cylinder assemblies 1 , or to connect adjacent transmission shafts 14 and top cylinder assemblies 1 .

[0052] In this embodiment, the synchronous belt 15 only connects two adjacent top-drum assemblies 1, or connects adjacent drive shafts 14 to top-drum assemblies 1. This further improves the synchronization rate between each top-drum assembly 1 and the main shaft 10, thereby ensuring winding quality and stability. The drive shaft 14 is connected to the adjacent connecting shaft 6 via the synchronous belt 15, and the connecting shaft 6 is then connected to its adjacent connecting shaft 6 via the synchronous belt 15. This reduces the span of the synchronous belt 15, making the length of the synchronous belt 15 moderate, reducing transmission resistance, and improving transmission efficiency and synchronization rate.

[0053] like Figure 6 As shown, it is a half-section schematic diagram of the transmission shaft in this embodiment. The transmission shaft 14 includes a first shaft section 16 and a second shaft section 17. The second shaft section 17 is cylindrical. The first shaft section 16 is sleeved in the second shaft section 17 and is connected by a ball spline 18.

[0054] One end of the transmission shaft 14 is connected to the main shaft 10, and the other end is connected to the mounting plate 13. When loading and unloading flat parts 9, the mounting plate 13 needs to be moved along the axis, so the transmission shaft 14 needs to be able to extend and retract. The ball spline 18 only transmits torque and does not affect axial movement. Figure 6As shown, a portion of the first shaft segment 16 can be nested within the second shaft segment 17 and moves simultaneously with the movement of the mounting plate 13. The transmission shaft 14 also includes a third shaft segment 19, which is mounted on the mounting plate 13 via a bearing. The first shaft segment 16 is connected to the third shaft segment 19 via a coupling. The second shaft segment 17 is mounted with an extension shaft through a fixing member. The extension shaft is equipped with bearings, pulleys, and other components, and is connected to the main shaft 10 via a belt.

[0055] like Figure 5 As shown, in this embodiment, the opening and closing mechanism 3 includes a guide rod 20 and a cylinder 21. The end of the guide rod 20 is connected to the mounting plate 13. The cylinder 21 is used to drive the guide rod 20 to connect, so that the guide rod 20 pushes the mounting plate 13 to move.

[0056] The opening and closing mechanism 3 can be fixed to the frame 25 of the winding machine. There are preferably two guide rods 20. The ends of the two guide rods 20 are connected to the mounting plate 13 and are guided by a guide sleeve 26 mounted on the frame 25 of the winding machine. The other ends of the two guide rods 20 are fixed to a plate to form a frame structure. The main body of the cylinder 21 is connected to the plate. The moving end of the cylinder 21 is fixed to the frame 25 of the winding machine, thereby driving the guide rods 20 to move along the guide sleeve 26, so that the guide rods 20 push the mounting plate 13 to move as a whole, thereby causing the multiple top cylinder assemblies 1 to move along the axis, realizing the opening and closing movement between the top cylinder assembly 1 and the main shaft 10.

[0057] like Figure 7 As shown, it is a schematic structural diagram of the profiling shaft in this embodiment. This embodiment also includes a profiling shaft 22 that cooperates with the ejector rod 5. The profiling shaft 22 is provided with a profiling groove 23 for mounting the flat part 9. The profiling shaft 22 is mounted on the main shaft 10.

[0058] The contouring groove 23 primarily contours the frame of the flat component 9 and reduces contact between the enameled wire wound around the flat component 9 and the contouring groove 23. The flat component 9 is positioned within the contouring groove 23, facilitating engagement with the ejector pin 5. The contouring shaft 22 can be mounted on the main shaft 10 via a collet mechanism.

[0059] In this embodiment, a circular hole is formed in the middle of the contoured groove 23 , and a magnet 24 is installed in the circular hole.

[0060] When the wound flat part 9 has a magnetic core, the flat part 9 can be temporarily fixed in the profiling groove 23 by arranging a magnet 24 in the profiling groove 23 , thereby facilitating the loading of the flat part 9 .

[0061] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A follower shaft, mounted on a winding machine, characterized in that: include: A top cylinder assembly (1), a transmission mechanism (2) and an opening and closing mechanism (3); The ejector assembly (1) comprises a telescopic sleeve (4) and an ejector rod (5); one end of the telescopic sleeve (4) is open, and the other end is provided with a bottom surface, and the bottom surface extends outwardly along the axis to form a connecting shaft (6); one end of the ejector rod (5) is sleeved in the opening of the telescopic sleeve (4), and a spring (7) is installed inside the telescopic sleeve (4); the end surface of the other end of the ejector rod (5) is a supporting surface (8), and the supporting surface (8) is used to position a flat part (9) to be wound; The transmission mechanism (2) is used to connect the main shaft (10) of the winding machine and the connecting shaft (6), driving the push rod (5) and the main shaft (10) to rotate synchronously; The opening and closing mechanism (3) is connected to the top cylinder assembly (1) and is used to drive the top cylinder assembly (1) to move, so that the abutting surface (8) abuts against or separates from the flat part (9).

2. The follower shaft according to claim 1, characterized in that: The flat part (9) has a plurality of skeleton support points, and the supporting surface (8) is provided with a plurality of support angles (11) corresponding to the positions of the skeleton support points, and the support angles (11) are used to support the skeleton support points on the flat part (9).

3. The follower shaft according to claim 2, characterized in that: The flat part (9) is wound with enameled wire between the plurality of skeleton support points, and avoidance grooves (12) corresponding to the positions of the enameled wires are provided between the plurality of support angles (11), and the avoidance grooves (12) are used to avoid the enameled wires on the flat part (9).

4. The follower shaft according to claim 1, characterized in that: There are a plurality of top cylinder assemblies (1), and the connecting shafts (6) of the plurality of top cylinder assemblies (1) are all mounted on the same strip-shaped mounting plate (13) through bearings. The plurality of top cylinder assemblies (1) are evenly distributed on the mounting plate (13).

5. The follower shaft according to claim 4, characterized in that: The transmission mechanism (2) comprises two transmission shafts (14), the two transmission shafts (14) being mounted on the mounting plate (13) via bearings and being respectively arranged on both sides of the plurality of top cylinder assemblies (1), and the two transmission shafts (14) being connected to the top cylinder assemblies (1) via a synchronous belt (15).

6. The follower shaft according to claim 5, characterized in that: There are a plurality of synchronous belts (15), and each synchronous belt (15) is used to connect two adjacent top cylinder assemblies (1), or to connect adjacent transmission shafts (14) and the top cylinder assembly (1).

7. The follower shaft according to claim 5, characterized in that: The transmission shaft (14) comprises a first shaft section (16) and a second shaft section (17), the second shaft section (17) being cylindrical, a portion of the first shaft section (16) being sleeved in the second shaft section (17), and the first shaft section (16) and the second shaft section (17) being connected via a ball spline (18).

8. The follower shaft according to claim 4, characterized in that: The opening and closing mechanism (3) comprises a guide rod (20) and a cylinder (21), wherein the end of the guide rod (20) is connected to the mounting plate (13), and the cylinder (21) is used to drive the guide rod (20) so that the guide rod (20) pushes the mounting plate (13) to move.

9. The follower shaft according to claim 1, characterized in that: It also includes a profiling shaft (22) that cooperates with the push rod (5), the profiling shaft (22) is provided with a profiling groove (23) for mounting the flat part (9), and the profiling shaft (22) is mounted on the main shaft (10).

10. The follower shaft according to claim 9, characterized in that: A circular hole is provided in the middle of the profiling groove (23), and a magnet (24) is installed in the circular hole.

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