Cylinder-free positioning mechanism of winding former

Abstract

The utility model discloses a cylinder-free positioning mechanism for a winding former, which comprises a winding former mounting seat and a main shaft, the main shaft penetrates through the winding former mounting seat, a main shaft positioning seat positioned below the winding former mounting seat is movably sleeved outside the main shaft, a shaft hole is arranged on the winding former mounting seat, and the main shaft is sleeved on the main shaft positioning seat. The upper portion of the spindle positioning seat is connected with a rotating sleeve rotationally connected into the shaft hole, the spindle is sleeved with the rotating sleeve, the rotating sleeve is partially exposed out of the upper portion of the shaft hole, the two sides of the spindle positioning seat are each provided with a winding flying fork, the two winding flying forks are symmetrically arranged, and the lower end of the spindle penetrates through the spindle positioning seat and then is connected with a bearing seat. A winding die is arranged below the bearing seat, more than one bearing is arranged in the bearing seat, the bearing is sleeved outside the main shaft, a positioning pin is arranged on each of two sides of the upper surface of the bearing seat, a positioning copper sleeve is arranged on the lower surface of the main shaft positioning seat, and after the positioning pins move upwards, the positioning copper sleeve can be inserted into the positioning pins to realize positioning. The structure realizes positioning without a cylinder, so that the cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the relevant technical field of winding equipment, and in particular relates to a cylinderless positioning mechanism for winding molds. Background Technology

[0002] A winding machine is a machine that winds a linear object onto a specific workpiece. Its working principle is as follows: after the motor drives the winding spindle through a transmission mechanism such as gears or synchronous belts, the winding assembly installed below the winding spindle rotates at high speed. The wire passes through the wire channel and exits from the winding rod exit mechanism in the winding assembly. It is wound onto the winding mold at the bottom of the eccentric shaft located inside the spindle. The wound wire falls from the mold onto the workpiece to be wound below, thus achieving demolding.

[0003] To prevent the winding mold from rotating after winding is completed or when it is not in operation, a positioning operation is performed on the winding mold. Currently, the winding mold is positioned by fixing a small cylinder on the winding mold mounting base 1. The piston rod of the small cylinder passes through the winding mold mounting base 1 and sets a positioning rod. At the same time, a through hole is set on the side of the lower winding base plate 141 to facilitate the insertion of the positioning rod. This structure is used to position the winding mold when it is not in operation. However, this structure, because it uses a cylinder, undoubtedly increases the equipment cost. Moreover, most of them use a single cylinder to extend and retract the positioning on one side, resulting in poor stability. If the positioning rod is not inserted into the through hole, it can easily affect the positioning effect and reduce safety. If two cylinders are used, it will undoubtedly increase the equipment cost. In addition, the method of using a cylinder to drive the positioning rod to move up and down has a relatively longer stroke. If the stroke of the positioning rod into the through hole is too long, it will increase the difficulty of equipment assembly. Therefore, an improvement is needed. Utility Model Content

[0004] The purpose of this utility model is to provide a cylinder-free positioning mechanism for winding molds, which solves the problem that the existing method of positioning winding molds by using cylinders and positioning rods in conjunction with through holes for lifting and positioning results in high equipment costs and poor stability.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a cylinderless positioning mechanism for a winding mold, comprising a winding mold mounting base and a main shaft. The main shaft passes through the winding mold mounting base. A main shaft positioning seat is movably sleeved outside the main shaft and located below the winding mold mounting base. The winding mold mounting base has a shaft hole. A rotating sleeve is rotatably connected above the main shaft positioning seat and is rotatably connected within the shaft hole. The rotating sleeve is sleeved outside the main shaft, with a portion of the rotating sleeve protruding above the shaft hole. A winding fork is provided on each side of the main shaft positioning seat, and the two winding forks are symmetrically arranged. The lower part of the main shaft... A bearing housing is connected to the spindle positioning seat at the end of the spindle. A winding mold is provided below the bearing housing. One or more bearings are installed inside the bearing housing. The bearings are sleeved on the outside of the spindle. A positioning pin is provided on both sides of the upper surface of the bearing housing. A positioning copper sleeve is provided on the lower surface of the spindle positioning seat. When the positioning pin moves upward with the spindle, the positioning copper sleeve can be inserted with the positioning pin to achieve positioning. A nut is fixed on the upper surface of the bearing housing. One end of the positioning pin is provided with an external thread, which is threadedly connected to the nut.

[0007] Preferably, for ease of insertion, the positioning copper sleeve includes a copper sleeve base, and a limiting seat is provided on the lower surface of the copper sleeve base, which is perpendicular to the copper sleeve base and extends downward. The limiting seat is provided with a limiting hole, and the lower end face of the limiting seat is provided with a trapezoidal groove, which is connected to the limiting hole. The other end of the positioning pin is provided with a tapered part that can pass through the trapezoidal groove and be inserted into the limiting hole.

[0008] Preferably, the spindle positioning seat has one or more anti-slip teeth arranged on its outer ring. Preferably, a nut is provided on both the left and right sides of the upper surface of the bearing seat.

[0009] Preferably, the copper sleeve base has a groove hole on both sides, and a locking screw passes through each groove hole. The locking screw is threadedly connected to the spindle positioning seat.

[0010] Preferably, the winding die includes a winding base plate and an expansion / contraction die and a fixing die located on both sides of the winding base plate.

[0011] Preferably, in order to facilitate the adjustment of the distance between the expansion mold and the fixed mold, four waist grooves distributed in front, back, left and right are provided on the winding mold mounting base. Both sides of the expansion mold and the fixed mold are provided with one or more internal threaded holes. The internal threaded holes are threadedly connected to the positioning screws, and the positioning screws are threadedly connected to the internal threaded holes after passing through the corresponding waist grooves.

[0012] This utility model has the following beneficial effects:

[0013] 1. This structure eliminates the original cylinder, and because the positioning pin is directly set on the bearing seat and the positioning copper sleeve is set below the main shaft positioning seat, the stroke of the positioning pin to insert into the positioning copper sleeve is undoubtedly shortened, making installation more convenient and the equipment cost lower. Simultaneous positioning on both sides ensures better stability, and the positioning copper sleeve is made of copper, ensuring higher overall strength.

[0014] 2. Since the locating pin is threaded onto the nut, its height can be adjusted. Ultimately, if the locating pin still cannot be inserted into the locating copper sleeve when the spindle moves to the correct position, it means that the locating pin is not high enough. In this case, the locating pin can be adjusted by rotating it, making the operation more convenient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the cylinderless positioning mechanism for a winding mold in Example 1. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the cylinderless positioning mechanism for a winding mold in Example 1. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the structure of Example 1 when only one locating pin is installed on the bearing housing when the bearing housing and the winding die are combined;

[0018] Figure 4 for Figure 3 A schematic diagram of the structure when each positioning screw is separated from the internal threaded hole;

[0019] Figure 5 This is a schematic diagram of the structure when the bearing housing is separated from one of the locating pins in Example 1;

[0020] Figure 6 This is a schematic diagram of the connection structure between the upper bearing housing and the bearing in Example 1;

[0021] Figure 7 This is a schematic diagram of the positioning copper sleeve in Example 1;

[0022] Figure 8 This is a schematic diagram of the locating pin structure in Example 1;

[0023] Figure 9 This is a schematic diagram of the spindle positioning seat in Example 1.

[0024] Figure label:

[0025] 1. Winding mold mounting base, 2. Main spindle, 3. Main spindle positioning seat, 301. Rotating sleeve, 4. Winding fork, 5. Bearing seat, 501. Limiting hole, 6. Bearing, 7. Positioning pin, 8. Positioning copper sleeve, 9. Nut, 10. External thread part, 801. Copper sleeve base, 802. Limiting seat, 803. Limiting hole, 804. Trapezoidal groove, 701. Conical part, 11. Anti-slip teeth, 12. Waist groove hole, 13. Locking screw, 14. Winding mold, 141. Winding base plate, 142. Expansion mold, 143. Fixing mold, 101. Waist groove, 102. Internal thread hole, 103. Positioning screw, 104. Shaft hole. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Example 1

[0028] Please see Figure 1-9 As shown in this embodiment, a cylinderless positioning mechanism for a winding mold includes a winding mold mounting base 1 and a main shaft 2. The main shaft 2 passes through the winding mold mounting base 1. A main shaft positioning seat 3 is movably sleeved outside the main shaft 2 and located below the winding mold mounting base 1. The winding mold mounting base 1 has a shaft hole 104. A rotating sleeve 301 is rotatably connected to the top of the main shaft positioning seat 3 and is rotatably connected within the shaft hole 104. The rotating sleeve 301 is sleeved outside the main shaft 2, with a portion of the rotating sleeve 301 protruding above the shaft hole 104. A winding fork 4 is provided on each side of the main shaft positioning seat 3, and the two winding forks 4 are symmetrically arranged. The lower end of the main shaft 2 passes through the main shaft positioning seat 3 and is connected to a bearing seat 5. The winding mold 1 is located below the bearing seat 5. 4. One or more bearings 6 (two bearings 6 in this embodiment) are provided in the bearing housing 5. The bearing 6 is sleeved on the outside of the spindle 2. A positioning pin 7 is provided on both sides of the upper surface of the bearing housing 5. A positioning copper sleeve 8 is provided on the lower surface of the spindle positioning seat 3. When the positioning pin 7 moves upward with the spindle 2, the positioning copper sleeve 8 can be inserted with the positioning pin 7 to achieve positioning. In order to facilitate disassembly and adjust the height of the positioning pin 7, a nut 9 is fixed on the upper surface of the bearing housing 5. One end of the positioning pin 7 is provided with an external thread 10. The external thread 10 is threadedly connected to the nut 9. In order to avoid collision, a limiting hole 501 is provided at the position where the nut 9 is installed in the bearing housing 5 to facilitate the insertion of the external thread 10.

[0029] Preferably, for ease of insertion, the positioning copper sleeve 8 includes a copper sleeve base 801. A limiting seat 802 is provided on the lower surface of the copper sleeve base 801, which is perpendicular to the copper sleeve base 801 and extends downward. A limiting hole 803 is provided in the limiting seat 802. A trapezoidal groove 804 is provided on the lower end face of the limiting seat 802. The trapezoidal groove 804 is connected to the limiting hole 803. The other end of the positioning pin 7 is provided with a tapered part 701 that can pass through the trapezoidal groove 804 and be inserted into the limiting hole 803.

[0030] Preferably, the spindle positioning seat 3 has one or more anti-slip teeth 11 arranged on its outer ring. Preferably, a nut 9 is provided on both the left and right sides of the upper surface of the bearing seat 5.

[0031] Preferably, the copper sleeve base 801 has a waist groove hole 12 on both sides, and a locking screw 13 passes through each waist groove hole 12. The locking screw 13 is threadedly connected to the spindle positioning seat 3. Therefore, the bottom of the spindle positioning seat 3 is provided with an internal thread hole (not shown in the drawing) corresponding to the locking screw 13. Moreover, in this embodiment, since the waist groove hole 12 is a waist-shaped structure, the angle of the copper sleeve base 801 can be adjusted appropriately to accommodate the insertion of the positioning pin 7 below.

[0032] Preferably, the winding mold 14 includes a winding base plate 141 and an expansion mold 142 and a fixed mold 143 located on both sides of the winding base plate 141. To facilitate adjustment of the distance between the expansion mold 142 and the fixed mold 143, four waist grooves 101 distributed in the front, back, left and right directions are provided on the winding mold mounting base 1. Each side of the expansion mold 142 and the fixed mold 143 is provided with one or more internal threaded holes 102. The internal threaded holes 102 are threadedly connected to the positioning screws 103, and the positioning screws 103 pass through the corresponding waist grooves 101 and are threadedly connected to the internal threaded holes 102. In this embodiment, the waist grooves 101 are waist-shaped structures. When the corresponding positioning screws 103 are loosened, the distance between the expansion mold 142 and the fixed mold 143 can be adjusted.

[0033] This structure modifies the original cylinder-driven positioning method for the winding mold, which does not require operation. Instead, it directly uses a positioning copper sleeve 8 on both sides below the main spindle positioning seat 3, and a positioning pin 7 that can be inserted into the positioning copper sleeve 8 at the corresponding position of the bearing seat 5. This structure eliminates the original cylinder, and because the positioning pin 7 is directly placed on the bearing seat 5 and the positioning copper sleeve 8 is placed below the main spindle positioning seat 3, the stroke of the positioning pin 7 into the positioning copper sleeve 8 is undoubtedly shortened, making installation more convenient and reducing equipment costs. Simultaneous positioning from both sides ensures better stability. The copper sleeve is made of copper, ensuring higher overall strength. Furthermore, since the positioning pin 7 is threaded onto the nut 9, its height can be adjusted. Ultimately, if the positioning pin 7 still cannot be inserted into the positioning copper sleeve 8 when the main shaft 2 has moved to its position, it indicates that the positioning pin 7 is not high enough. This can be adjusted by rotating the positioning pin 7, making operation more convenient. During operation, when winding is not required or after winding is complete, the main shaft 2 moves upward (how the main shaft 2 moves upward is a conventional technique in this field and will not be described in detail), ensuring that the positioning pin 7 is inserted into the bearing seat 5, thus positioning the winding die and preventing its rotation.

[0034] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A cylinderless positioning mechanism for a winding mold, comprising a winding mold mounting base (1) and a main shaft (2), wherein the main shaft (2) passes through the winding mold mounting base (1), and a main shaft positioning seat (3) located below the winding mold mounting base (1) is movably sleeved outside the main shaft (2), the winding mold mounting base (1) is provided with a shaft hole (104), and a rotating sleeve (301) rotatably connected in the shaft hole (104) is connected above the main shaft positioning seat (3), the rotating sleeve (301) is sleeved outside the main shaft (2) and part of the rotating sleeve (301) is exposed above the shaft hole (104), and a winding fork (4) is provided on both sides of the main shaft positioning seat (3), the two winding forks (4) being symmetrically arranged, characterized in that: The lower end of the main shaft (2) passes through the main shaft positioning seat (3) and is connected to a bearing seat (5). A winding mold (14) is provided below the bearing seat (5). One or more bearings (6) are provided inside the bearing seat (5). The bearings (6) are sleeved on the outside of the main shaft (2). A positioning pin (7) is provided on both sides of the upper surface of the bearing seat (5). A positioning copper sleeve (8) is provided on the lower surface of the main shaft positioning seat (3). When the positioning pin (7) moves upward with the main shaft (2), the positioning copper sleeve (8) can be inserted with the positioning pin (7) to achieve positioning. A nut (9) is fixed on the upper surface of the bearing seat (5). One end of the positioning pin (7) is provided with an external thread (10). The external thread (10) is threadedly connected to the nut (9).

2. The cylinderless positioning mechanism for a winding die according to claim 1, characterized in that: The positioning copper sleeve (8) includes a copper sleeve base (801). A limiting seat (802) is provided on the lower surface of the copper sleeve base (801) and extends downward perpendicular to the copper sleeve base (801). A limiting hole (803) is provided in the limiting seat (802). A trapezoidal groove (804) is provided on the lower end face of the limiting seat (802). The trapezoidal groove (804) is connected to the limiting hole (803). The other end of the positioning pin (7) is provided with a conical part (701) that can pass through the trapezoidal groove (804) and be inserted into the limiting hole (803).

3. A cylinderless positioning mechanism for a winding die according to claim 1 or 2, characterized in that: The main shaft positioning seat (3) has one or more anti-slip teeth (11) on its outer ring.

4. The cylinderless positioning mechanism for a winding die according to claim 3, characterized in that: A nut (9) is provided on both the left and right sides of the upper surface of the bearing housing (5).

5. A cylinderless positioning mechanism for a winding die according to claim 4, characterized in that: The copper sleeve base (801) has a waist groove hole (12) on both sides, and a locking screw (13) passes through each waist groove hole (12). The locking screw (13) is threadedly connected to the spindle positioning seat (3).

6. A cylinderless positioning mechanism for a winding die according to claim 1 or 2, characterized in that: The winding mold (14) includes a winding base plate (141) and an expansion mold (142) and a fixing mold (143) located on both sides of the winding base plate (141).

7. A cylinderless positioning mechanism for a winding die according to claim 6, characterized in that: The winding mold mounting base (1) is provided with four waist grooves (101) distributed in front, back, left and right. The expansion mold (142) and the fixing mold (143) are provided with one or more internal threaded holes (102) on both sides. The internal threaded holes (102) are threadedly connected to the positioning screws (103), and the positioning screws (103) are threadedly connected to the internal threaded holes (102) after passing through the corresponding waist grooves (101).

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