A winding reversing mechanism for a winding machine

Abstract

The application provides a winding reversing mechanism for a winding machine, which comprises a jig fixing mechanism and a rotary driving mechanism; the jig fixing mechanism comprises a jig fixing seat, the top surface of the jig fixing seat is provided with a center positioning protrusion and a side positioning protrusion; the outer circumferential side of the jig fixing seat is provided with a buckle fixing assembly, the buckle fixing assembly comprises two symmetrically distributed strip buckles, the connecting portions of the two strip buckles are respectively elastically hinged to the outer circumferential side of the jig fixing seat at lower positions, and the buckle portions of the two strip buckles respectively extend above the top surface of the jig fixing seat; the bottom of the jig fixing seat is provided with a rotary driving rod, the rotary driving rod is connected to the output end of the rotary driving mechanism, and the rotary driving rod is driven by the rotary driving mechanism to drive the jig fixing seat to rotate circumferentially; the jig fixing seat can be integrally pressed and limited on the jig, the jig clamping positioning stability and positioning position accuracy are greatly improved, and the reliability of the core workpiece winding process is ensured.

Description

Technical Field

[0001] This invention relates to the field of winding machine technology, and more specifically, to a winding reversing mechanism for a winding machine. Background Technology

[0002] During the winding process of iron core workpieces, the winding machine needs to use a reversing mechanism to drive the fixture and workpiece to complete the circumferential angle switching to meet the process requirements of multi-directional winding processing. Existing winding reversing mechanisms typically use a fixture base, on which the workpiece is placed, and then a drive mechanism rotates the fixture base to achieve reversal. However, in actual use, existing technology still has some shortcomings: most reversing mechanisms rely solely on the fixture base for simple insertion and limiting of the fixture. Frequent start-stop reversing generates vibration, which can easily cause the fixture to shift or tilt, reducing the positioning accuracy of the workpiece and resulting in poor consistency of the wound product and problems such as winding misalignment. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a winding reversing mechanism for a winding machine, which addresses the above-mentioned deficiencies of the prior art.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a winding reversing mechanism for a winding machine, comprising a fixture fixing mechanism and a rotary drive mechanism; the fixture fixing mechanism includes a fixture fixing seat, the top surface of which is provided with a central positioning protrusion and an off-center positioning protrusion; the outer periphery of the fixture fixing seat is provided with a snap-fit ​​fixing assembly, the snap-fit ​​fixing assembly including two symmetrically distributed strip snaps, the connecting parts of the two strip snaps being elastically hinged to the lower position of the outer periphery of the fixture fixing seat, and the snap-fit ​​parts of the two strip snaps extending above the top surface of the fixture fixing seat; the bottom of the fixture fixing seat is provided with a rotary drive rod, the rotary drive rod being connected to the output end of the rotary drive mechanism, and the fixture fixing seat being rotated circumferentially by the rotary drive mechanism driving the rotary drive rod.

[0005] In some embodiments, two symmetrically distributed mounting slots are respectively provided on the lower outer periphery of the fixture fixing base, and the connecting parts of the two strip buckles are respectively disposed in the two mounting slots by torsion spring hinge components; two symmetrically distributed through slots are also provided on the outer periphery of the fixture fixing base, the two through slots corresponding to the two mounting slots, and both through slots penetrate the top surface of the fixture fixing base; the strip-shaped bodies of the two strip buckles are respectively adapted to the two through slots.

[0006] In some embodiments, each of the two strip-shaped buckles has a limiting protrusion on its opposite side. When the two limiting protrusions abut against the two through slots, the strip-shaped bodies of the two strip-shaped buckles are relatively inclined, and the buckling portions of the two strip-shaped buckles are in an unfolded state.

[0007] In some embodiments, the rotary drive rod is mounted on a fixed bracket via a double-row deep groove ball bearing. The fixed bracket is also provided with a fixed sleeve, and the double-row deep groove ball bearing is fixedly embedded in the top of the fixed sleeve. The bottom end of the rotary drive rod extends out of the fixed sleeve and is connected to the output end of the rotary drive mechanism.

[0008] In some embodiments, the rotary drive rod is provided with an annular convex disk located inside the fixed sleeve. The outer periphery of the annular convex disk is provided with four equally spaced elastic positioning beads, one of which is positioned corresponding to the position of the offset positioning protrusion. A positioning recess is formed on the inner side wall of the fixed sleeve, and a pressure sensor is embedded in the positioning recess. The positioning recess allows any elastic positioning bead to be engaged, and the elastic positioning bead contacts the pressure sensor after being engaged in the positioning recess.

[0009] In some embodiments, the inner sidewall of the fixing sleeve is provided with an annular groove at the position corresponding to the annular convex disc, the annular convex disc is gapped into the annular groove and can rotate synchronously with the rotating drive rod within it; the positioning recess is provided on the groove wall of the annular groove.

[0010] In some embodiments, a first limiting plate is provided above the fixed bracket, and a first hollow hole is provided on the first limiting plate; a second limiting plate is provided below the first limiting plate, and a second hollow hole is provided on the second limiting plate, and the first hollow hole and the second hollow hole are distributed vertically in correspondence; the fixture fixing seat is located in the first hollow hole and the second hollow hole.

[0011] In some embodiments, the fixed bracket is further provided with a wire cutting mechanism and a waste wire collection and discharge mechanism. The waste wire collection and discharge mechanism is located on one side of the fixture fixing base, and the wire cutting mechanism is located on the side of the waste wire collection and discharge mechanism away from the fixture fixing base.

[0012] In some embodiments, the fixed bracket is mounted on an XYZ moving module, and the fixed bracket is moved in the X, Y, and Z directions by the XYZ moving module.

[0013] In some embodiments, at least two fixture fixing seats are provided, and the at least two fixture fixing seats are arranged side by side in sequence; the rotation drive rod of each fixture fixing seat is synchronously driven to rotate by the rotation drive mechanism.

[0014] The beneficial effects of this invention are as follows: Unlike the prior art, the winding reversing mechanism for winding machines of this invention achieves precise insertion and pre-positioning of the fixture and anti-deflection angle positioning by setting a central positioning protrusion and an off-center positioning protrusion on the top surface of the fixture fixing seat; at the same time, by symmetrically setting elastically movable strip-shaped buckles at the lower position of the outer periphery of the fixture fixing seat, and extending the buckling part of the strip-shaped buckles upward to the top surface of the fixture fixing seat, the fixture on the fixture fixing seat can be further pressed and limited as a whole, thereby effectively avoiding the fixture offset and lifting problems caused by frequent start-stop and reversing vibrations, greatly improving the fixture clamping and positioning stability and positioning accuracy, ensuring the reliability of the iron core workpiece winding process, effectively improving the winding misalignment problem, and significantly improving the forming consistency and overall processing quality of the winding products. Attached Figure Description

[0015] Figure 1 This is a rear side view schematic diagram of the winding reversing mechanism for a winding machine in an embodiment of the present invention; Figure 2 This is a front view schematic diagram of the winding reversing mechanism for a winding machine in an embodiment of the present invention; Figure 3 This is an enlarged schematic diagram of part A in an embodiment of the present invention; Figure 4 This is a front view schematic diagram of the winding reversing mechanism for a winding machine in an embodiment of the present invention; Figure 5 This is an enlarged schematic diagram of part B in an embodiment of the present invention; Figure 6 This is a right-side schematic diagram of the winding reversing mechanism for a winding machine in an embodiment of the present invention; Figure 7 This is a cross-sectional schematic diagram of the fixed sleeve and the rotating drive rod in an embodiment of the present invention; Figure 8 This is a schematic diagram of the fixture in an embodiment of the present invention; The markings and numbers in the diagram are as follows: Fixture fixing seat-1; Center positioning protrusion-11; Side positioning protrusion-12; Strip buckle-13; Rotary drive rod-14; Mounting groove-101; Through groove-102; Limiting protrusion-131; Fixing bracket-2; Fixing sleeve-3; Annular convex disc-141; Elastic positioning bead-1410; Positioning recess-301; Pressure sensor-5; Annular groove-302; First limiting plate-6; Second limiting plate-7; Wire cutting mechanism-8; Waste wire collection and discharge mechanism-9; XYZ moving module-10; Servo motor-41; Synchronous belt-42; Drive wheel-43; Driven wheel-44; Fixture-100; Center recess-1001; Side recess-1002; Slot-1003. Detailed Implementation

[0016] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0017] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0018] "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0019] Furthermore, the terms indicating orientation, such as "up," "down," "front," "back," "left," "right," "upper end," and "lower end," are all based on the posture and position of the device or equipment described in this solution during normal use.

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0021] This invention provides a winding reversing mechanism for a winding machine, such as... Figures 1 to 7As shown, the winding reversing mechanism for the winding machine includes a fixture fixing mechanism and a rotary drive mechanism. The fixture fixing mechanism includes a fixture fixing seat 1, the top surface of which is provided with a central positioning protrusion 11 and a side positioning protrusion 12. The outer periphery of the fixture fixing seat 1 is provided with a snap-fit ​​fixing assembly, which includes two symmetrically distributed strip snaps 13. The connecting parts of the two strip snaps 13 are elastically hinged to the lower position of the outer periphery of the fixture fixing seat 1, and the snap-fit ​​parts of the two strip snaps 13 extend to the top surface of the fixture fixing seat 1. The bottom of the fixture fixing seat 1 is provided with a rotary drive rod 14, which is connected to the output end of the rotary drive mechanism. The rotary drive mechanism drives the rotary drive rod 14 to rotate the fixture fixing seat 1 circumferentially.

[0022] In practical applications, the jig 100 structure is as follows: Figure 8 As shown, a core can be fixed to each of the four sides of the fixture 100 for winding multiple sets of cores. The bottom surface of the fixture 100 has a central recess 1001 and a side recess 1002. Four symmetrically distributed slots 1003 are located on the lower outer periphery of the fixture 100; two of the symmetrically distributed slots 1003 correspond to the snap-fit ​​parts of the two strip-shaped buckles 13. In this embodiment, the central positioning protrusion 11 is fitted into the central recess 1001 to achieve pre-positioning of the fixture 100; simultaneously, the side positioning protrusion 12 is fitted into the side recess 1002 to achieve anti-deflection angle positioning, thereby achieving initial positioning of the fixture 100 on the fixture fixing seat 1. After the fixture 100 is in place, the snap-fit ​​parts of the two strip-shaped buckles 13 can respectively engage in the corresponding two slots 1003, forming a clamping constraint on the fixture 100.

[0023] Specifically, in this embodiment, two symmetrically distributed mounting slots 101 are respectively provided on the lower outer periphery of the fixture fixing base 1. The connecting parts of the two strip-shaped buckles 13 are respectively provided in the two mounting slots 101 through torsion spring hinge components. The torsion spring hinge components provide elastic hinge force for the strip-shaped buckles 13, so that the strip-shaped buckles 13 have elastic clamping and resetting capabilities. Two symmetrically distributed through slots 102 are also provided on the outer periphery of the fixture fixing base 1. The two through slots 102 respectively pass through the two mounting slots 101, and both through slots 102 pass through the top surface of the fixture fixing base 1. The strip-shaped bodies of the two strip-shaped buckles 13 are respectively adapted to the two through slots 102. The strip-shaped bodies of the strip-shaped buckles 13 can swing along the through slots 102. The through slots 102 provide clearance space for the swing of the strip-shaped buckles 13.

[0024] Furthermore, in this embodiment, each of the two strip-shaped buckles 13 has a limiting protrusion 131 on its opposite side (the side facing each other). The limiting protrusion 131 can be integrally formed on the strip-shaped body of the strip-shaped buckle 13. When the two limiting protrusions 131 abut against the two through slots 102, the strip-shaped bodies of the two strip-shaped buckles 13 are relatively inclined, and the buckling parts of the two strip-shaped buckles 13 are unfolded, which facilitates the fixture 100 to be placed into the fixture fixing seat 1 from top to bottom. As the fixture 100 is installed into the fixture fixing seat 1, the torsion spring hinge assembly drives the strip-shaped buckles 13 to reset, and the buckling parts of the strip-shaped buckles 13 gradually snap into the corresponding slots 1003 of the fixture 100, and finally press against the fixture 100 to achieve the locking and fixing of the fixture 100.

[0025] Specifically, in this embodiment, the rotary drive rod 14 is mounted on a fixed bracket 2 via a double-row deep groove ball bearing. The fixed bracket 2 also has a fixed sleeve 3, which is installed on the plate of the fixed bracket 2. The double-row deep groove ball bearing is fixedly embedded in the top of the fixed sleeve 3; the rotary drive rod 14 is fixedly connected to the inner ring of the double-row deep groove ball bearing, and the outer ring of the double-row deep groove ball bearing is fixedly embedded in the fixed sleeve 3. The top end of the rotary drive rod 14 is integrally welded to the fixture fixing seat 1, and the bottom end of the rotary drive rod 14 protrudes through the fixed sleeve 3 and is connected to the output end of the rotary drive mechanism, providing power for the reversing rotation of the fixture fixing seat 1.

[0026] Furthermore, in this embodiment, the rotary drive rod 14 is provided with an annular cam 141 located inside the fixed sleeve 3. The annular cam 141 can be fixedly connected to the rotary drive rod 14 by means of key connection or other methods. Four equally spaced elastic positioning beads 1410 are provided circumferentially on the outer periphery of the annular cam 141, one of which corresponds to the position of the offset positioning protrusion 12 to ensure the correspondence of angular positions. A positioning recess 301 is formed on the inner wall of the fixed sleeve 3, and a pressure sensor 5 is embedded in the positioning recess 301. The positioning recess 301 allows any elastic positioning bead 1410 to be inserted, and after being inserted into the positioning recess 301, the elastic positioning bead 1410 contacts the pressure sensor 5. During the four reversal rotations, the four elastic positioning beads 1410 will sequentially be inserted into the positioning recess 301. Each insertion triggers the pressure sensor 5 to output a positioning signal, indicating that the fixture fixing seat 1 has been rotated into position, thus accurately realizing the reversal positioning detection.

[0027] Furthermore, in this embodiment, the inner wall of the fixing sleeve 3 has an annular groove 302 at the position corresponding to the annular convex disc 141. The annular convex disc 141 is fitted into the annular groove 302 and can rotate synchronously with the rotating drive rod 14 within it; the positioning recess 301 is formed on the groove wall of the annular groove 302. The annular groove 302 can effectively regulate the rotation of the annular convex disc 141, and can play an axial limiting role for the annular convex disc 141, restricting the axial movement of the annular convex disc 141 along the rotating drive rod 14, and ensuring accurate reversal position.

[0028] Furthermore, in this embodiment, a first limiting plate 6 is provided above the fixed bracket 2, and a first hollow hole is formed on the first limiting plate 6; a second limiting plate 7 is provided below the first limiting plate 6, and a second hollow hole is formed on the second limiting plate 7, with the first hollow hole and the second hollow hole being distributed vertically in correspondence; the fixture fixing seat 1 is located inside the first hollow hole and the second hollow hole. The first limiting plate 6 and the second limiting plate 7 play a protective and radial auxiliary limiting role for the fixture fixing seat 1, while the first hollow hole and the second hollow hole can avoid the rotational movement of the fixture fixing seat 1 and will not interfere with the reversing action.

[0029] Furthermore, in this embodiment, the fixed bracket 2 is also equipped with a wire cutting mechanism 8 and a waste wire collection and discharge mechanism 9. The waste wire collection and discharge mechanism 9 is located on one side of the fixture fixing base 1, and the wire cutting mechanism 8 is located on the side of the waste wire collection and discharge mechanism 9 away from the fixture fixing base 1. After the winding process is completed, the wire cutting mechanism 8 performs the wire cutting action, and the cut waste wire can be collected and discharged by the waste wire collection and discharge mechanism 9, which facilitates the waste wire treatment in the production process. The wire cutting mechanism 8 can adopt existing wire cutting execution components, and its specific structure will not be described in detail here. The waste wire collection and discharge mechanism 9 includes, for example, a collection basket, a pipe communicating with the collection basket, and a corresponding suction mechanism.

[0030] Furthermore, in this embodiment, the fixed bracket 2 is mounted on an XYZ moving module 10. The XYZ moving module 10 drives the fixed bracket 2 to move in the X, Y, and Z directions, thereby meeting the positioning and feeding requirements of the fixture during the winding operation. The XYZ moving module 10 can be an existing XYZ axis linear displacement module, and its specific structure will not be described in detail.

[0031] Furthermore, in this embodiment, at least two fixture fixing seats 1 are provided, and the at least two fixture fixing seats 1 are arranged side by side in sequence; the rotation drive rod 14 of each fixture fixing seat 1 is synchronously driven to rotate by the rotation drive mechanism, thereby realizing the synchronous reversal rotation of multiple fixture fixing seats 1 and improving the overall processing efficiency of the equipment.

[0032] For example, the rotary drive mechanism employs a synchronous belt transmission mechanism comprising a servo motor 41, a synchronous belt 42, a drive pulley 43, and a driven pulley 44. When three fixture mounting bases 1 are provided, arranged side-by-side, a drive pulley 43 is mounted on the rotary drive rod 14 of one fixture mounting base 1. This drive pulley 43 is fixedly connected to the drive shaft (output end) of the servo motor 41 via a coupling. A driven pulley 42 is mounted on the rotary drive rod 14 of the other two fixture mounting bases 1. Through the engagement of a single synchronous belt 42 with the drive pulley 43 and the two driven pulleys 44, synchronous belt transmission is achieved under the drive of the servo motor 41, thereby realizing the synchronous rotation of the three fixture mounting bases 1. Furthermore, several tension pulleys can be configured to cooperate with the synchronous belt 43.

[0033] It should be noted that in this embodiment, only the part of the fixture that needs to be fixed in conjunction with the fixture fixing mechanism is explained. The method and structure of fixing the iron core of the fixture are not specifically limited and should be based on the actual application.

[0034] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A winding reversing mechanism for a winding machine, characterized in that, The fixture includes a fixture fixing mechanism and a rotary drive mechanism. The fixture fixing mechanism includes a fixture fixing base, the top surface of which is provided with a central positioning protrusion and an off-center positioning protrusion. The outer periphery of the fixture fixing base is provided with a snap-fit ​​fixing assembly, which includes two symmetrically distributed strip-shaped snaps. The connecting parts of the two strip-shaped snaps are elastically hinged to the lower position of the outer periphery of the fixture fixing base, and the snap-fit ​​parts of the two strip-shaped snaps extend to the top surface of the fixture fixing base. The bottom of the fixture fixing base is provided with a rotary drive rod, which is connected to the output end of the rotary drive mechanism. The rotary drive mechanism drives the rotary drive rod to rotate the fixture fixing base circumferentially.

2. The winding indexing mechanism for a winding machine according to claim 1, characterized in that, Two symmetrically distributed mounting slots are respectively provided on the lower outer periphery of the fixture fixing base. The connecting parts of the two strip buckles are respectively provided in the two mounting slots through torsion spring hinge assemblies. Two symmetrically distributed through slots are also provided on the outer periphery of the fixture fixing base. The two through slots correspond to the two mounting slots and both through slots penetrate the top surface of the fixture fixing base. The strip-shaped bodies of the two strip buckles are respectively adapted to the two through slots.

3. The winding reversing mechanism for a winding machine according to claim 2, characterized in that, Each of the two strip-shaped buckles has a limiting protrusion on its opposite side. When the two limiting protrusions abut against the two through slots, the strip-shaped bodies of the two strip-shaped buckles are relatively tilted, and the buckling parts of the two strip-shaped buckles are unfolded.

4. The winding reversing mechanism for a winding machine according to claim 1, characterized in that, The rotary drive rod is mounted on a fixed bracket via a double-row deep groove ball bearing. The fixed bracket is also provided with a fixed sleeve, and the double-row deep groove ball bearing is fixedly embedded in the top of the fixed sleeve. The bottom end of the rotary drive rod extends out of the fixed sleeve and is connected to the output end of the rotary drive mechanism.

5. The winding reversing mechanism for a winding machine according to claim 4, characterized in that, The rotary drive rod is provided with an annular convex disk located inside the fixed sleeve. Four elastic positioning beads are provided circumferentially along the outer periphery of the annular convex disk, one of which is positioned corresponding to the position of the offset positioning protrusion. A positioning recess is formed on the inner side wall of the fixed sleeve, and a pressure sensor is embedded in the positioning recess. The positioning recess allows any elastic positioning bead to be engaged, and the elastic positioning bead contacts the pressure sensor after being engaged in the positioning recess.

6. The winding reversing mechanism for a winding machine according to claim 5, characterized in that, The inner wall of the fixed sleeve has an annular groove at the position of the corresponding annular convex disc. The annular convex disc is inserted into the annular groove and can rotate synchronously with the rotating drive rod within it. The positioning recess is formed on the groove wall of the annular groove.

7. The winding reversing mechanism for a winding machine according to claim 4, characterized in that, The fixed bracket is provided with a first limiting plate above it, and a first hollow hole is provided on the first limiting plate; a second limiting plate is provided below the first limiting plate, and a second hollow hole is provided on the second limiting plate, and the first hollow hole and the second hollow hole are distributed vertically in correspondence; the fixture fixing seat is located in the first hollow hole and the second hollow hole.

8. The winding reversing mechanism for a winding machine according to claim 7, characterized in that, The fixed bracket is also equipped with a wire cutting mechanism and a waste wire collection and discharge mechanism. The waste wire collection and discharge mechanism is located on one side of the fixture fixing base, and the wire cutting mechanism is located on the side of the waste wire collection and discharge mechanism away from the fixture fixing base.

9. The winding reversing mechanism for a winding machine according to claim 4, characterized in that, The fixed bracket is mounted on an XYZ moving module, which drives the fixed bracket to move in the X, Y, and Z directions.

10. The winding reversing mechanism for a winding machine according to any one of claims 4-9, characterized in that, The fixture fixing base is provided with at least two, and the at least two fixture fixing bases are arranged side by side in sequence; the rotation drive rod of each fixture fixing base is synchronously driven to rotate by the rotation drive mechanism.

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