PIN needle thread end twisting device of winding equipment
By designing a PIN needle wire twisting device for winding equipment, the problems of uneven winding and poor soldering of small-volume PIN needle wires were solved, achieving automated and precise twisting with stable soldering and conductivity.
Patent Information
- Application Number
- CN202423017864.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-06
AI Technical Summary
The stator wire ends of existing brushless motors tend to protrude after being wound around the pins, leading to problems such as poor soldering or loosening. In addition, the existing twisting devices are bulky and not suitable for small pins.
A PIN needle wire twisting device for a winding equipment was designed. Through the combination of a base, a rotating shaft, a clamping shaft and a driving device, the wire ends are uniformly wound and stably soldered. The clamping shaft avoids interference when switching relative positions. The overall volume is less than 3 times that of a PIN needle.
It achieves uniform winding and stable soldering of small-volume PIN needle wire ends, ensuring conductivity stability and avoiding poor soldering and loosening. It is suitable for automated and precise twisting of small-volume PIN needles.
Smart Images
Figure CN223502714U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of winding equipment, and in particular to a PIN needle wire twisting device for winding equipment. Background Technology
[0002] Existing brushless motors generally include a stator and a rotor. The stator includes coils and enameled wire wound around the coils. After the stator is wound, at least two wire ends are usually led out. In a stator with a plug-in structure, the wire ends protrude after being wound around the pins. The current approach is to flatten the wire ends directly, and then conduct electricity through the contact between the pins and the wire ends.
[0003] However, in actual processing, it was found that pressing the wire end flat on the side of the PCB board 101 away from the soldering can easily lead to problems such as poor soldering or loosening, which in turn affects the stability of the stator (e.g., the stator and the wire end detach or become misaligned). However, since the stator is small in size, it is also difficult to twist the wire manually. The stator volume is less than 30mm, so the diameter of its pin and enameled wire is even smaller. The outer diameter of the pin is about 0.5mm-2mm (of course, it does not limit the use of larger pin sizes). Therefore, the key to the design is how to achieve a small-volume twisting device (the existing ones are generally large and not suitable for small-volume pins) so that the wire end is evenly wound around the pin. This allows the wire end to pass through the PCB board 101 and be soldered to the pin at the soldering position. Utility Model Content
[0004] The main purpose of this utility model is to propose a PIN pin wire end twisting device for a winding equipment, which aims to make the overall size of the twisting mechanism smaller, while ensuring that the wire ends are evenly distributed and fit together along the height direction of the PIN pin, thereby ensuring that the PIN pin and the wire ends can pass through the PCB board and be soldered and fixed to the other end of the PCB board, ensuring the stability of conductivity.
[0005] To achieve the above objectives, this utility model proposes a PIN needle wire twisting device for a winding equipment, comprising:
[0006] The base is provided with a pivot hole;
[0007] A rotating shaft is mounted in a pivot hole. The lower end of the rotating shaft has two swing-equipped clamping shafts. The middle of the two clamping shafts is pivotally connected to the lower part of the rotating shaft. Clamping grooves are provided on the opposing lower surfaces of the two clamping shafts.
[0008] The two clamping shafts swing relative to each other.
[0009] A first driving device is used to drive the clamping shaft to swing and cause the two clamping slots to switch between positions that are close to each other or positions that are far apart.
[0010] The second drive device is located at the upper part of the machine base and is connected to the rotating shaft. It is used to drive the rotating shaft to rotate, thereby driving the two clamping shafts to rotate.
[0011] When the wire end of the PIN needs to be twisted and fitted, the base is placed on the moving device, which in turn drives the two clamping shafts to move down, so that the two clamping slots move to the outer periphery of the PIN. At this time, the lifting ring moves away from the lower end of the clamping shaft through the first driving device, and the two clamping slots move away from each other.
[0012] Then the first drive device removes the force on the lifting ring. At this time, the lifting ring moves down and brings the lower ends of the two clamping shafts closer together, and brings the two clamping slots closer together, forming a clamping channel that is appropriate for the size of the PIN needle. First, the wire end is brought into contact with the PIN needle. At the same time, the second drive device rotates, which in turn drives the wire end and the wire body wrapped around the PIN needle to rotate, thereby smoothing and winding the wire end, so that the PIN needle and the wire end can be stably soldered and fixed.
[0013] When the clamping shafts need to be switched to a position that is far apart, the first drive device drives the lifting ring to move upward, thereby causing the lower ends of the two clamping shafts to swing toward a position that is far apart, thus realizing the principle of the PIN pin. At the same time, the swing setting also avoids interference with the outer peripheral wall of the PIN pin. Meanwhile, even if the clamping shafts swing, their maximum outer diameter is less than 3 times the outer diameter of the PIN pin, thus realizing automated and precise wire twisting. Attached Figure Description
[0014] Figure 1 This is a three-dimensional schematic diagram of the present utility model. Figure 1 ;
[0015] Figure 2 This is a three-dimensional schematic diagram of the present utility model. Figure 2 ;
[0016] Figure 3 This is an exploded view of the concealed base of this utility model.
[0017] Figure 4 Exploded view of the shaft and clamping shaft;
[0018] Figure 5 This is a cross-sectional view of the present utility model. Figure 1 ;
[0019] Figure 6 This is a cross-sectional view of the present utility model. Figure 2 ;
[0020] Figure 7 This is a schematic diagram of a partial fit of the present invention;
[0021] Figure 8 This is a schematic diagram of the twisted wire of this utility model;
[0022] Figure 9 This is a schematic diagram of the twisted wire in the existing technology.
[0023] In the picture,
[0024] 100 is the pin, 101 is the PCB board, 102 is the wire end, and 103 is the solder joint.
[0025] 1 is the base, 10 is the pivot hole.
[0026] 2 is the pivot, 2a is the through groove, and 2b is the swing hole.
[0027] 3 is the clamping shaft, 30 is the clamping groove, 3a is the limiting part, 3b is the shaft part, and 3c is the clearance slope.
[0028] 4 is the lifting ring, 41 is the guide groove, and 42 is the guide rod.
[0029] 5 is the first drive unit, 51 is the telescopic motor, 52 is the swing claw, and 53 is the swing groove.
[0030] 6 is the second drive unit, 60 is a rotary motor, 61 is a horizontal worm gear, 62 is a vertical worm gear, and 63 is a non-circular slot.
[0031] 71 is the first spring, and 72 is the second spring.
[0032] 81 is the driving inclined plane, and 82 is the driving block. Detailed Implementation
[0033] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0034] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.
[0035] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0036] like Figures 1 to 9 As shown, a PIN needle wire twisting device for a winding equipment includes:
[0037] Base 1, wherein the base 1 is provided with a pivot hole 10;
[0038] A rotating shaft 2 is installed in a pivot hole 10. The lower end of the rotating shaft 2 is provided with two swing-mounted clamping shafts 3. The middle parts of the two clamping shafts 3 are pivotally connected to the lower part of the rotating shaft 2. Clamping grooves 30 are provided on the opposing lower walls of the two clamping shafts 3.
[0039] The outer peripheral wall of the rotating shaft 2 is fitted with a lifting ring 4, which can slide along the height direction of the rotating shaft 2;
[0040] The two clamping shafts 3 swing relative to each other, and the two clamping slots 30 switch between positions that are close to each other or positions that are far apart;
[0041] When the lifting ring 4 slides downward, it can cause the two clamping grooves 30 to swing in close proximity.
[0042] When the lifting ring 4 slides upward, the two clamping grooves 30 can swing toward positions that are far apart.
[0043] The first driving device 5 is used to drive the lifting ring 4 to move upward.
[0044] The second drive device 6 is located at the upper part of the base 1 and is connected to the rotating shaft 2. It is used to drive the rotating shaft 2 to rotate, thereby driving the two clamping shafts 3 to rotate.
[0045] When the wire end 102 of the PIN needle 100 needs to be tightened and fitted, the base 1 is placed on the moving device, which in turn drives the two clamping shafts 3 to move down, so that the two clamping grooves 30 move to the outer periphery of the PIN needle 100. At this time, the lifting ring 4 moves away from the lower end of the clamping shaft 3 through the first driving device 5, and the two clamping grooves 30 move away from each other.
[0046] Then the first drive device 5 removes the force on the lifting ring 4. At this time, the lifting ring 4 moves down and brings the lower ends of the two clamping shafts 3 closer together, and brings the two clamping grooves 30 closer together, forming a clamping channel that is appropriate for the size of the PIN needle 100. First, the wire end is brought into contact with the PIN needle 100. At the same time, the second drive device 6 rotates, which in turn drives the wire end and the wire body wrapped around the PIN needle 100 to rotate, thereby smoothing and winding the wire end, so that the PIN needle 100 and the wire end can be stably soldered and fixed.
[0047] When the clamping shaft 3 needs to be switched to a position that is far away, the first driving device 5 drives the lifting ring 4 to move upward, thereby causing the lower ends of the two clamping shafts 3 to swing towards a position that is far away, thus realizing the principle of the PIN needle 100. At the same time, the swing setting also avoids interference with the outer peripheral wall of the PIN needle 100. Meanwhile, even if the clamping shaft 3 swings, its maximum outer diameter is less than 3 times the outer diameter of the PIN needle 100, thus realizing automated and precise wire twisting.
[0048] Specifically, when the two clamping shafts 3 are close together and fit together, they form a clamping seat. The outer diameter of the clamping seat is compatible with the outer diameter of the rotating shaft 2. The lower end of the clamping seat extends out of the base 1 and is suspended in the air, thereby ensuring the twisting of the PIN pin 100 and avoiding interference.
[0049] In this embodiment of the utility model, the lower part of the rotating shaft 2 is provided with two oppositely arranged through grooves 2a, and the middle part of the lower section of the rotating shaft 2 is provided with a swing hole 2b.
[0050] The upper section of the clamping shaft 3 is a limiting part 3a, which is oscillatingly installed in the through groove 2a. The middle part of the clamping shaft 3 is provided with a shaft part 3b, and the two shaft parts 3b are offset in the swing hole. A swing rod passes through the swing hole and is connected to the shaft part 3b.
[0051] This design can effectively reduce the length and size of the swing shaft, and at the same time, it can make the lower sections of the two clamping shafts 3 form a clamping seat that is compatible with the outer diameter of the rotating shaft 2 when they are close to each other, thereby improving the structural stability.
[0052] Specifically, the opposing wall surfaces of the two limiting parts 3a are avoidance slopes 3c, which extend from top to bottom to the shaft part 3b. Therefore, when the two clamping shafts 3 are in a position far apart, there will be no interference, and the overall size and swing range of the clamping shafts 3 are smaller, thus realizing the clamping and moving away actions.
[0053] In this embodiment of the utility model, the rotating shaft 2 is provided with a guide groove 41 at the position tangent to the through groove 2a, and the lifting ring 4 is provided with a guide rod 42 passing through the guide groove 41. When the lifting ring 4 moves to a position close to the swing hole, the inner wall of the lifting ring 4 abuts against the outer wall of the swing shaft, and forces the two clamping grooves 30 to swing toward a position close to each other.
[0054] The guide rod is located between the two avoidance inclined surfaces 3c and can force the two limiting parts 3a to swing away from each other, thereby achieving the clamping of the PIN needle 100. In this application design, the lifting ring 4 is located above the swing hole.
[0055] At the same time, the guide rods further ensure the stability of the clamping when the two clamping shafts 3 rotate.
[0056] Specifically, a first spring 71 is provided between the two clamping shafts 3. The first spring 71 is used to drive the lower ends of the two clamping shafts 3 to swing towards a position that is far apart. The first elastic element can be provided on the shaft portion 3b or between the two limiting portions 3a, thereby driving the two clamping grooves 30 to swing towards a position that is far apart.
[0057] In this embodiment of the utility model, a second spring 72 is provided between the upper wall of the rotating shaft 2 and the lifting ring 4. The second spring 72 is used to drive the lifting ring 4 to move downward and drive the lower sections of the two clamping shafts 3 to swing towards a position closer to each other. Therefore, the lifting ring 4 is driven to rise by the first driving device 5, thereby realizing that the two clamping shafts 3 move away from each other.
[0058] Specifically, the first driving device 5 includes a swing claw 52 pivotally mounted in the middle of the base 1 and a telescopic motor 51 located at the rear end of the swing claw 52. The telescopic motor 51 directly or through an intermediate component drives the front end of the swing claw 52 to swing.
[0059] The swing claw 52 is provided with a swing groove 53. The swing claw 52 is located on the lower wall of the lifting ring 4. The lower section of the rotating shaft 2 and the clamping shaft 3 are located in the swing groove 53.
[0060] The pawl 52 can also directly drive the swing of the two swing shafts. The pawl 52 mainly lifts the lifting ring 4 so that the first spring 71 can drive the two clamping shafts 3 to swing away from the position.
[0061] In this embodiment of the invention, the intermediate component includes a driving inclined surface 81 located at the driving end of the telescopic motor 51, and a driving block 82 that cooperates with the driving inclined surface 81 is provided at the rear end of the swing claw 52. When the lowest surface of the driving inclined surface abuts against the driving block, the front end of the swing claw 52 tilts upward to raise the lifting ring 4.
[0062] When the top surface of the driving ramp comes into contact with the driving block, the pawl 52 swings downward under the elastic force of the lifting ring 4 and the second spring 72.
[0063] Specifically, the second drive device 6 includes a rotary motor 60, a horizontal worm gear 61 connected to the rotary motor 60, and a vertical worm gear 62 meshing with the horizontal worm gear. The upper end of the rotating shaft 2 is provided with a non-circular slot 63, and the lower end of the vertical worm gear is inserted into the non-circular slot. This reduces the overall height of the mechanism; alternatively, a rack and pinion mechanism can be used.
[0064] Alternatively, the motor can be connected to shaft 2 or a belt can be used for connection.
[0065] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A PIN needle wire twisting device for a winding equipment, characterized in that, include: The base is provided with a pivot hole; A rotating shaft is mounted in a pivot hole. The lower end of the rotating shaft has two swing-equipped clamping shafts. The middle of the two clamping shafts is pivotally connected to the lower part of the rotating shaft. Clamping grooves are provided on the opposing lower surfaces of the two clamping shafts. The two clamping shafts swing relative to each other. A first driving device is used to drive the clamping shaft to swing and cause the two clamping slots to switch between positions that are close to each other or positions that are far apart. The second drive device is located at the upper part of the machine base and is connected to the rotating shaft. It is used to drive the rotating shaft to rotate, thereby driving the two clamping shafts to rotate.
2. The PIN needle wire twisting device of the winding equipment as described in claim 1, characterized in that: The first driving device includes a lifting ring, which is used to drive the lifting ring to move upward. The outer peripheral wall of the rotating shaft is fitted with a lifting ring, which can slide along the height direction of the rotating shaft; When the lifting ring slides downward, it can cause the two clamping slots to swing in a close position; When the lifting ring slides upward, the two clamping slots can swing toward positions that are far apart.
3. The PIN needle wire twisting device of the winding equipment as described in claim 1, characterized in that: The lower part of the rotating shaft is provided with two oppositely arranged through slots, and the middle part of the lower section of the rotating shaft is provided with a swing hole; The upper section of the clamping shaft is a limiting part, which is oscillatingly installed in the through groove. The middle part of the clamping shaft is provided with a shaft part, and the two shaft parts are misaligned in the swing hole. A swing rod passes through the swing hole and is connected to the shaft part.
4. The PIN needle wire twisting device of the winding equipment as described in claim 3, characterized in that: The opposing wall surfaces of the two limiting parts are avoidance slopes, which extend from top to bottom to the shaft.
5. The PIN needle wire twisting device of the winding equipment as described in claim 2, characterized in that: The rotating shaft is provided with a guide groove at the position where it is tangent to the through groove. The lifting ring is provided with a guide rod that passes through the guide groove. When the lifting ring moves to a position close to the swing hole, the inner wall of the lifting ring abuts against the outer wall of the swing shaft, and forces the two clamping grooves to swing toward a position closer to each other. The guide rod is located between the two avoidance slopes and can force the two limiting parts to swing away from each other.
6. The PIN needle wire twisting device of the winding equipment as described in claim 1, characterized in that: A first spring is provided between the two clamping shafts, which is used to drive the lower ends of the two clamping shafts to swing toward positions that are far apart.
7. The PIN needle wire twisting device of the winding equipment as described in claim 2, characterized in that: A second spring is provided between the rotating shaft and the upper wall of the lifting ring. The second spring is used to drive the lifting ring to move downward and drive the lower sections of the two clamping shafts to swing towards each other.
8. The PIN needle wire twisting device of the winding equipment as described in claim 1, characterized in that: The first driving device includes a swing claw pivotally mounted in the middle of the base and a telescopic motor located at the rear end of the swing claw. The telescopic motor directly or through an intermediate component drives the front end of the swing claw to swing. The swing claw is provided with a swing groove, the swing claw is located on the lower wall of the lifting ring, and the lower section of the rotating shaft and the clamping shaft are located in the swing groove.
9. The PIN needle wire twisting device of the winding equipment as described in claim 8, characterized in that: The intermediate component includes a drive ramp located at the drive end of the telescopic motor, and the rear end of the swing claw is provided with a drive block that cooperates with the drive ramp.
10. The PIN needle wire twisting device of the winding equipment as described in claim 1, characterized in that: The second drive device includes a rotary motor, a horizontal worm gear connected to the rotary motor, and a vertical worm gear meshing with the horizontal worm gear. The upper end of the rotating shaft is provided with a non-circular slot, and the lower end of the vertical worm gear is inserted into the non-circular slot.