Wire stranding device

Abstract

The utility model belongs to the field of motor production and manufacturing, and particularly relates to a wire stranding device which comprises a rotating shaft, a driving motor, a clamping mechanism and a controller, the driving motor is used for driving the rotating shaft to rotate, and the clamping mechanism comprises a clamping jaw installed at the end, away from the driving motor, of the rotating shaft and a clamping driving mechanism connected to the clamping jaw and used for driving the clamping jaw to be closed. And the controller is used for controlling the clamping driving mechanism and the driving motor to act successively. In the specific use process, a worker holds a stator winding by hand and places three knot wires in the clamping jaw in a normally-open state, then the controller controls the clamping driving mechanism to act to enable the clamping jaw to be closed, the three knot wires are clamped firstly, then the controller controls the driving motor to act to drive the clamping jaw clamping the three knot wires to rotate, and the three knot wires are clamped in the clamping jaw. And the three knot wires are twisted together to form a common end. In conclusion, the stranding device is simple to operate and convenient to use, the production efficiency is improved, the product consistency is high, and the possibility of potential quality hazards is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of motor production and manufacturing, and in particular to a wire twisting device. Background Art

[0002] With the advancement of technology, there are more and more electronic products. Many of these electronic products use motors, and the production of motors is also a complicated process.

[0003] Currently, in the production process of brushless DC motors, after the stator winding is completed, the three wires need to be twisted together to form a common end. Since there are no suitable tools on the market for twisting the wires, they can only be twisted manually. Manual twisting is inconvenient to operate, resulting in low production efficiency. At the same time, there are also quality risks. The common end is prone to fluffy, resulting in poor tinning in the later stage, affecting the quality of the motor. Utility Model Content

[0004] The embodiments of the present application provide a wire twisting device for solving the technical problems that manual wire twisting is inconvenient to operate, resulting in low production efficiency and quality risks.

[0005] To achieve the above-mentioned purpose, the present application provides a wire twisting device, comprising a rotating shaft, a driving motor, a clamping mechanism and a controller; the output shaft of the driving motor is connected to one end of the rotating shaft, and the driving motor is used to drive the rotating shaft to rotate; the clamping mechanism comprises a clamping jaw and a clamping drive mechanism, the clamping jaw is installed at one end of the rotating shaft away from the driving motor and is in a normally open state, the clamping drive mechanism is connected to the clamping jaw and is used to drive the clamping jaw to close so as to clamp the three wires on the stator winding; the driving motor is used to drive the clamping jaw in the closed state to rotate so as to twist the three wires together to form a common end, and the controller is electrically connected to the driving motor and the clamping drive mechanism respectively, and the controller is used to control the clamping drive mechanism and the driving motor to move in sequence.

[0006] Optionally, the clamping claw includes a hinged seat, two clamping arms and an elastic member, the hinged seat is installed at one end of the rotating shaft away from the driving motor, the middle parts of the two clamping arms are respectively hinged to the opposite ends of the hinged seat, the rear ends of the two clamping arms are connected by the elastic member, and under the action of the elastic member, they move closer to the rotating shaft, thereby driving the front ends of the two clamping arms to open.

[0007] Optionally, the front ends of the two clamping arms for clamping the three knotted wires have serrated end surfaces.

[0008] Optionally, the elastic member includes a rubber band, a limiting groove is provided at the rear end of the clamping arm, and the rubber band is wound around the rear ends of the two clamping arms and is limited in the limiting groove.

[0009] Optionally, the clamping drive mechanism includes a conical push sleeve, a lever, a pull rod and a telescopic drive. The conical push sleeve is mounted on the rotating shaft and can slide back and forth on the rotating shaft. The front end surface of the conical push sleeve is a conical surface. The conical push sleeve can push the rear ends of the two clamping arms forward through the conical surface, so that the rear ends of the two clamping arms overcome the elastic force of the elastic member and open, thereby driving the front ends of the two clamping arms to close. One end of the lever is against the rear end of the conical push sleeve, and the other end of the lever is hinged to the pull rod. The telescopic drive is connected to the pull rod and is used to drive the pull rod to move back and forth. The controller is electrically connected to the telescopic drive.

[0010] Optionally, the telescopic driver comprises a pneumatic cylinder or an electric cylinder, and the telescopic rod of the pneumatic cylinder or the electric cylinder is connected to an end of the pull rod away from the lever.

[0011] Optionally, the stranding device further includes a shell and a control panel arranged on the shell and electrically connected to the controller, the drive motor, the clamping drive mechanism and the controller are all arranged in the shell, an avoidance hole is provided on the shell, and the clamping claw extends out of the shell through the avoidance hole.

[0012] Optionally, the stranding device further comprises a foot switch, which is electrically connected to the controller and is used to send a control signal to the controller for controlling the start and stop of the clamping drive mechanism and the drive motor.

[0013] The beneficial effect of the wire twisting device provided by the present application is that: compared with the prior art, the wire twisting device of the present application includes a rotating shaft, a driving motor, a clamping mechanism and a controller, the driving motor is used to drive the rotating shaft to rotate, the clamping mechanism includes a clamping claw installed on the end of the rotating shaft away from the driving motor and a clamping drive mechanism connected to the clamping claw and used to drive the clamping claw to close, and the controller is used to control the clamping drive mechanism and the driving motor to move in sequence. During specific use, the staff holds the stator winding and places the three wires in the clamping claw in the normally open state, and then controls the clamping drive mechanism to move through the controller to close the clamping claw and clamp the three wires first, and then the controller controls the driving motor to move to drive the clamping claw holding the three wires to rotate so as to twist the three wires together to form a common end. In summary, the wire twisting device is simple to operate and easy to use. While improving production efficiency, it has high product consistency and reduces the possibility of quality risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0015] in:

[0016] Figure 1 1 is a schematic diagram of the external structure of a stranding device according to an embodiment of the present application;

[0017] Figure 2 This is a partial structural schematic diagram of a wire stranding device shown in an embodiment of the present application with part of the outer shell removed;

[0018] Figure 3 This is a schematic diagram of the coordination of the rotating shaft, the clamping claw and part of the clamping drive mechanism in the stranding device shown in an embodiment of the present application. Figure 1 ;

[0019] Figure 4 This is a schematic diagram of the coordination of the rotating shaft, the clamping claw and part of the clamping drive mechanism in the stranding device shown in an embodiment of the present application. Figure 2 .

[0020] Description of main component symbols:

[0021] 100, shaft;

[0022] 210, clamping claw; 211, articulated seat; 212, clamping arm; 213, elastic member; 220, clamping drive mechanism; 221, tapered push sleeve; 222, lever; 223, pull rod;

[0023] 300, housing; 301, avoidance hole;

[0024] 400, control panel;

[0025] 500. Foot switch. DETAILED DESCRIPTION

[0026] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many other forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0027] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0028] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0030] It should also be noted that, in the embodiments of the present application, the same figure mark represents the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark one of the parts or components as an example. It should be understood that the figure mark also applies to other identical parts or components.

[0031] As described in the background technology, in the prior art, after the stator winding is completed, it is inconvenient to manually twist the three wires, resulting in low production efficiency. There are also quality risks, and the common end is prone to become fluffy, resulting in poor tinning in the later stage, affecting the quality of the motor.

[0032] In order to solve the above problems, the embodiment of the present application provides a stranding device, such as Figures 1-4As shown, the twisting device includes a rotating shaft 100, a driving motor (located in a housing 300, not shown in the figure), a clamping mechanism and a controller (located in a housing 300, not shown in the figure); the output shaft of the driving motor is connected to one end of the rotating shaft 100, and the driving motor is used to drive the rotating shaft 100 to rotate; the clamping mechanism includes a clamping jaw 210 and a clamping drive mechanism 220, the clamping jaw 210 is installed at one end of the rotating shaft 100 away from the driving motor and is in a normally open state, the clamping drive mechanism 220 is connected to the clamping jaw 210 and is used to drive the clamping jaw 210 to close to clamp the three wires on the stator winding; the driving motor is used to drive the closed clamping jaw 210 to rotate to twist the three wires together to form a common end, and the controller is electrically connected to the driving motor and the clamping drive mechanism 220, respectively, and the controller is used to control the clamping drive mechanism 220 and the driving motor to move in sequence.

[0033] In the embodiment of the present application, when the twisting device is used, a worker holds the stator winding and places the three wires in the normally open clamp 210. The controller then controls the clamping drive mechanism 220 to close the clamp 210, clamping the three wires. The controller then controls the drive motor to rotate the clamp 210 holding the three wires, twisting the three wires together to form a common end. In summary, the twisting device is simple to operate and easy to use. While improving production efficiency, it also has high product consistency and reduces the possibility of quality problems.

[0034] Preferably, the driving motor is a servo motor with high precision, fast response and strong stability.

[0035] In one embodiment, if Figure 1 As shown, the stranding device further includes a foot switch 500, which is electrically connected to the controller. The foot switch 500 is used to send control signals to the controller to control the clamping drive mechanism 220 and the start and stop of the drive motor.

[0036] A foot switch 500 is provided and placed on the ground to be controlled by the worker's feet, freeing the worker's hands.

[0037] In one embodiment, if Figure 2 and Figure 3 As shown, the clamping jaw 210 includes a hinged seat 211, two clamping arms 212 and an elastic member 213. The hinged seat 211 is installed at the end of the rotating shaft 100 away from the driving motor. The middle parts of the two clamping arms 212 are respectively hinged to the opposite ends of the hinged seat 211. The rear ends of the two clamping arms 212 are connected by the elastic member 213 and move closer to the rotating shaft 100 under the action of the elastic member 213, thereby driving the front ends of the two clamping arms 212 to open.

[0038] Specifically, the elastic member 213 comprises a rubber band, and the rear ends of the clamping arms 212 are provided with a limiting groove. The rubber band is wound around the rear ends of the two clamping arms 212 and is retained within the limiting groove. It is understood that the elastic member 213 may also be a tension spring, with the rear ends of the two clamping arms 212 connected by the tension spring, which forces the rear ends of the two clamping arms 212 to move toward the rotating shaft 100.

[0039] Furthermore, in order to improve the stability of the front ends of the two clamping arms 212 in clamping the wire harness, the end surfaces of the front ends of the two clamping arms 212 for clamping the three tied wires are serrated surfaces.

[0040] In a specific embodiment, Figure 2-Figure 4 As shown, the clamping drive mechanism 220 includes a conical push sleeve 221, a lever 222, a pull rod 223 and a telescopic drive (not shown in the figure). The conical push sleeve 221 is sleeved on the rotating shaft 100 and can slide back and forth on the rotating shaft 100. The front end surface of the conical push sleeve 221 is a conical surface. The conical push sleeve 221 can push the rear ends of the two clamping arms 212 forward through the conical surface, so that the rear ends of the two clamping arms 212 overcome the elastic force of the elastic member 213 and open, thereby driving the front ends of the two clamping arms 212 to close. One end of the lever 222 is against the rear end of the conical push sleeve 221, and the other end of the lever 222 is hinged to the pull rod 223. The telescopic drive is connected to the pull rod 223 and is used to drive the pull rod 223 to move back and forth. The controller is electrically connected to the telescopic drive.

[0041] The telescopic driver includes a pneumatic cylinder or an electric cylinder, and the telescopic rod of the pneumatic cylinder or the electric cylinder is connected to the end of the pull rod 223 away from the lever 222.

[0042] As set above, it can be understood that when the telescopic drive does not pull the pull rod 223 backward, the rear ends of the two clamping arms 212 in the clamping jaw 210 move closer to the rotating shaft 100 under the action of the elastic member 213, and the front ends of the two clamping arms 212 are opened; when the telescopic drive pulls the pull rod 223 backward, the pull rod 223 drives the other end of the lever 222 (that is, the end that abuts against the rear end of the conical push sleeve 221) to push forward against the conical push sleeve 221, and through the conical push sleeve 221, the rear ends of the two clamping arms 212 overcome the elastic force of the elastic member 213 to open, thereby driving the front ends of the two clamping arms 212 to close.

[0043] Preferably, the end of the lever 222 away from the pull rod 223 (i.e., the end abutting against the rear end of the conical push sleeve 221) is in a U-shaped structure, and the notch in the middle of the U-shaped structure is larger than the outer diameter of the rotating shaft 100. The U-shaped structure can apply a uniform force to the conical push sleeve 221 in the process of pushing the conical push sleeve 221 forward.

[0044] In one embodiment, if Figure 1-Figure 2As shown, the stranding device also includes a housing 300 and a control panel 400 arranged on the housing 300 and electrically connected to the controller. The drive motor, the clamping drive mechanism 220 and the controller are all arranged in the housing 300. An avoidance hole 301 is provided on the housing 300, and the clamping jaws 210 extend out of the housing 300 through the avoidance hole 301.

[0045] It should be noted that the housing 300 protects the drive motor, the clamping drive mechanism 220, and the controller. The control panel 400 allows for editing and setting the drive motor's speed (corresponding to the twisting speed), rotation direction (corresponding to the twisting direction), number of turns (corresponding to the number of twisting turns), and other settings.

[0046] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A wire stranding device, characterized in that: It includes a rotating shaft, a driving motor, a clamping mechanism and a controller; the output shaft of the driving motor is connected to one end of the rotating shaft, and the driving motor is used to drive the rotating shaft to rotate; the clamping mechanism includes a clamping jaw and a clamping driving mechanism, the clamping jaw is installed at one end of the rotating shaft away from the driving motor and is in a normally open state, the clamping driving mechanism is connected to the clamping jaw and is used to drive the clamping jaw to close so as to clamp the three wires on the stator winding; the driving motor is used to drive the clamping jaw in the closed state to rotate so as to twist the three wires together to form a common end, the controller is electrically connected to the driving motor and the clamping driving mechanism respectively, and the controller is used to control the clamping driving mechanism and the driving motor to move in sequence.

2. The stranding device according to claim 1, characterized in that The clamping claw includes a hinged seat, two clamping arms and an elastic member. The hinged seat is installed at one end of the rotating shaft away from the driving motor. The middle parts of the two clamping arms are respectively hinged to the opposite ends of the hinged seat. The rear ends of the two clamping arms are connected by the elastic member and move closer to the rotating shaft under the action of the elastic member, thereby driving the front ends of the two clamping arms to open.

3. The wire stranding device according to claim 2, characterized in that The front ends of the two clamping arms are used for clamping the three knotted wires and have serrated end surfaces.

4. The wire stranding device according to claim 2, characterized in that The elastic member includes a rubber band, and a limiting groove is provided at the rear end of the clamping arm. The rubber band is wound around the rear ends of the two clamping arms and is limited in the limiting groove.

5. The stranding device according to any one of claims 2 to 4, characterized in that: The clamping drive mechanism includes a conical push sleeve, a lever, a pull rod and a telescopic drive. The conical push sleeve is mounted on the rotating shaft and can slide back and forth on the rotating shaft. The front end surface of the conical push sleeve is a conical surface. The conical push sleeve can push the rear ends of the two clamping arms forward through the conical surface, so that the rear ends of the two clamping arms overcome the elastic force of the elastic member and open, thereby driving the front ends of the two clamping arms to close. One end of the lever is against the rear end of the conical push sleeve, and the other end of the lever is hinged to the pull rod. The telescopic drive is connected to the pull rod and is used to drive the pull rod to move back and forth. The controller is electrically connected to the telescopic drive.

6. The wire stranding device according to claim 5, characterized in that The telescopic driver comprises a pneumatic cylinder or an electric cylinder, and a telescopic rod of the pneumatic cylinder or the electric cylinder is connected to an end of the pull rod away from the lever.

7. The wire stranding device according to claim 1, characterized in that The stranding device also includes a shell and a control panel arranged on the shell and electrically connected to the controller. The drive motor, the clamping drive mechanism and the controller are all arranged in the shell. The shell is provided with an avoidance hole, and the clamping claw extends out of the shell through the avoidance hole.

8. The wire stranding device according to claim 1, characterized in that The stranding device further comprises a foot switch, which is electrically connected to the controller and is used to send a control signal to the controller for controlling the start and stop of the clamping drive mechanism and the drive motor.

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