CN219394654U - Wire cutting and pulling mechanism - Google Patents

Abstract

The utility model relates to a wire cutting and pulling mechanism, which comprises a clamping assembly, a punching cutter assembly and a wire pulling rod assembly; the clamping assembly is provided with a movable clamping piece driven by the first air cylinder to intermittently extend out and hook the cable, and is also provided with a fixed clamping piece matched with the movable clamping part to clamp the cable when the movable clamping part hooks the cable and retracts; the punching cutter assembly comprises a punching cutter which is driven by a second air cylinder, and extends out of the clamping assembly to be matched with the punching surface on the movable clamping piece to punch the cable after the cable is clamped by the clamping assembly; the wire pulling rod assembly comprises a wire pulling rod which swings after the punching cutter stretches out to pull the cable between the clamping assembly and the wire outlet mechanism of the winding machine; the punching cutter and the wire pulling rod are respectively arranged at two sides of the clamping assembly. The automatic wire winding machine has the advantages of simple structure, low cost, small volume, simple control, short action time and the like, is convenient to debug, has high shearing efficiency and good shearing effect, can effectively avoid the problems of clamping leakage, partial shearing and incapability of being universal in shearing wire diameter, is suitable for all wire winding machines, and is easy to popularize and use.

Description

Wire cutting and pulling mechanism

Technical Field

The utility model relates to the technical field of coil winding machines, in particular to a wire cutting and pulling mechanism.

Background

The stator in the external rotor motor comprises a stator core and a stator winding. The stator core comprises a stator yoke and stator teeth radially formed on the outer peripheral surface of the stator yoke, tooth shoes are arranged at the outer ends of the stator teeth, and a winding groove is formed between adjacent stator teeth.

The outer rotor stator winding machine is special for outer winding type stator winding and is designed and produced, the traditional outer rotor stator winding machine is usually only provided with a winding die, a winding mechanism and an indexing mechanism for installing a stator, enameled wires are required to be sheared off in a manual mode after the stator winding is finished, and the processing efficiency is low and the specification and the length are different. Although a plurality of wire clamping and shearing devices with different structures appear in the market at present and can realize the functions of automatic wire clamping and wire shearing, the wire clamping and shearing device for the traditional stator winding machine has the problems of complex structure, high cost, difficult control, long action time, unsatisfactory shearing effect, easy occurrence of clamping leakage, partial shearing, incapability of universal wire diameter shearing and the like, and does not meet the requirements of modern production.

Therefore, there is a need to improve the existing wire cutting and pulling mechanism to solve the above-mentioned problems.

Disclosure of Invention

The utility model provides a wire cutting and pulling mechanism aiming at the defects of the prior art.

In order to achieve the above-mentioned purpose, the embodiment of the utility model provides a wire cutting and pulling mechanism which is realized by the following technical scheme:

the wire cutting and pulling mechanism is used for cutting wires of the cables after the stator is wound and is characterized by comprising a clamping assembly, a punching cutter assembly and a wire pulling rod assembly; the clamping assembly is provided with a movable clamping piece driven by the first air cylinder to intermittently extend out and hook the cable, and is also provided with a fixed clamping piece matched with the movable clamping part to clamp the cable when the movable clamping part hooks the cable and retracts; the punching cutter assembly comprises a punching cutter which is driven by a second air cylinder, and extends out of the clamping assembly to be matched with the punching surface on the movable clamping piece to punch the cable after the cable is clamped by the clamping assembly; the wire pulling rod assembly comprises a wire pulling rod which swings after the punching cutter stretches out to pull the cable between the clamping assembly and the wire outlet mechanism of the winding machine; the punching cutter and the wire pulling rod are respectively arranged at two sides of the clamping assembly.

The movable clamping piece comprises an L-shaped body, the corner of the body is fixedly connected with a piston rod of the first cylinder, and two ends of the body extending from the corner are perpendicular to the piston rod of the first cylinder; the first end of the body is a clamping part; the second end of body is formed with the punching surface towards the side of first cylinder, and the end of second end has the kink towards the piston rod of first cylinder, and kink upper portion is formed with the portion of encorbelmenting of perpendicular to piston rod of first cylinder, and the portion of encorbelmenting is parallel with the first end of body.

The tail end of the clamping part is obliquely provided with a hook towards the first cylinder.

The wire cutting and pulling mechanism further comprises a vertical plate, and the first air cylinder and the second air cylinder are fixed on the vertical plate.

The fixed clamping piece is a C-shaped square groove fixed on the vertical plate, the first air cylinder and the movable clamping piece are respectively arranged at two ends of the square groove, and piston rods of the punching cutter and the first air cylinder are sleeved in a cavity enclosed by the square groove and the vertical plate; the end face of the square groove, which faces the movable clamping piece, forms a clamping surface matched with the movable clamping piece.

The wire pulling rod assembly comprises a motor for driving the wire pulling rod to swing.

The wire pulling rod assembly comprises a third cylinder for driving the wire pulling rod to swing.

Compared with the prior art, the utility model has the beneficial effects that: simple structure, with low costs, small, control is simple, action time advantage such as short, and the debugging is convenient, shear efficiency is high, shear effectually, can effectually avoid leaking to press from both sides, partly cut, the problem emergence that the shearing line footpath size can't be general, is applicable to all coiling machines, easily uses widely.

Drawings

The above features and advantages of the present utility model will become more apparent and readily appreciated from the following description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings.

FIG. 1 is a schematic diagram of a wire cutting and pulling mechanism according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of the movable clamping member, the fixed clamping member and the die cutter.

Detailed Description

Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terms such as "front", "rear", "left", "right", "inner", "outer", and the like, as used in the present specification, are also for descriptive purposes only and are not intended to limit the scope of the utility model in which the utility model may be practiced, but rather the relative relationship of the terms may be altered or modified without materially altering the skill of the art to which the utility model pertains.

In the description of the embodiments below, unless explicitly specified and limited otherwise, the term "coupled" and the like should be construed broadly, and for example, "coupled" may be either fixedly coupled, detachably coupled, or integrally formed; either mechanically or indirectly, through intermediaries, or in communication with each other, or in interaction with each other, unless otherwise specifically defined. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1, an embodiment of the present utility model provides a wire cutting and pulling mechanism for cutting a wire of a cable after winding a stator, which includes a vertical plate 4 vertically arranged, and other components of a tension mechanism are all installed on the vertical plate 4, and mainly includes:

clamping assembly 1

The clamping assembly 1 comprises a first cylinder 11, a movable clamping member 12 and a fixed clamping member 13.

The fixed clamping piece 13 is a C-shaped square groove fixed on the vertical plate. The first cylinder 11 is located at the upper end of the notch of the C-shaped square groove, and the piston rod of the first cylinder extends into the square groove of the fixed clamping piece 13 and can move along the square groove.

The movable clamping piece 12 is arranged at the lower end of the fixed clamping piece 13, is directly or indirectly connected with a piston rod of the first air cylinder 11, and is driven by the piston rod to intermittently stretch out and draw back.

As shown in fig. 1-2, the movable clamping member 12 includes an L-shaped body 121, and the corner of the body 121 is fixedly connected to the piston rod of the first cylinder 11, and both ends extending from the fixing are perpendicular to the piston rod of the first cylinder 11. The first end of the body 121 is a clamping portion 122, and a hook 125 is provided at the end of the clamping portion 122 so as to incline in the retracting direction of the movable clamping member. The second end of the body 121 faces the side of the C-shaped square groove to form a punching surface 126, the tail end of the second end is provided with a bending part 123 facing the piston rod of the first cylinder 11, the upper part of the bending part 123 is provided with a cantilever part 124 perpendicular to the piston rod of the first cylinder 11, and the cantilever part 124 is parallel to the first end of the body 121. The end face of the square groove facing the movable clamping piece 12 forms a clamping surface matched with the movable clamping piece.

The punching cutter assembly 2 is arranged between the stator winding die and the clamping assembly 1. The punching cutter assembly 2 comprises a second air cylinder 21 and a punching cutter 22, and the punching cutter 22 extends into a cavity enclosed by the C-shaped square groove and the vertical plate and can move along the cavity.

The wire pulling rod assembly 3 is arranged between the clamping assembly 1 and the winding rod 22. The wire pulling lever assembly 3 includes a wire pulling lever 31 and a motor 32. The motor 32 drives the wire pulling rod 31 to swing so as to pull the wire winding rod 22 to the enameled wire between the clamping assemblies 1 to prepare for winding.

Through foretell structure, the theory of operation of trimming pull out line mechanism is:

when the winding operation starts, the clamping assembly 1 clamps the wire ends of the enameled wires. The motor 32 drives the wire pulling rod 31 to swing, the position of the middle enameled wire is guided to correspond to the stator core, and then the winding rod of the winding mechanism rotates to start winding.

After the winding of the current winding is completed, the movable clamping piece 12 stretches out, the clamped enameled wire heads of the wound wire groups are released, and the enameled wires between the wound wire groups and the winding rods are hooked. The position of the enamelled wire on the movable clamping piece 12 at this time is: from the overhanging portion 124 to the clamping portion 122 via the punching surface 126; when the movable clamp 12 is retracted, the enamel wire is clamped by the clamping portion 122 and the clamping surface of the square groove.

After the clamping assembly clamps the enameled wire, the second air cylinder 21 drives the lower punching cutter 22 to extend, and the tail end of the lower punching cutter is matched with the punching surface 126 on the movable clamping piece 12 to punch the enameled wire. At this time, the clamping assembly maintains a state of clamping the enamel wire, and the clamped wire ends forming the next group of windings.

After the punching blade 22 extends out, the motor 32 drives the wire pulling rod 31 to swing, and the enameled wire is pulled to prepare for the next winding.

While the intent and embodiments of the present utility model have been described in detail by way of examples, those skilled in the art to which the utility model pertains will appreciate that the foregoing examples are merely illustrative of the preferred embodiments of the present utility model, and that it is not intended to list all embodiments individually and that any implementation embodying the technical scheme of the present utility model is within the scope of the present utility model.

It should be noted that the above description of the present utility model is further detailed in connection with the specific embodiments, and it should not be construed that the specific embodiments of the present utility model are limited thereto, and those skilled in the art can make various improvements and modifications on the basis of the above-described embodiments while falling within the scope of the present utility model.

Claims (7)

1. The wire cutting and pulling mechanism is used for cutting wires of the cables after the stator is wound and is characterized by comprising a clamping assembly, a punching cutter assembly and a wire pulling rod assembly; the clamping assembly is provided with a movable clamping piece driven by the first air cylinder to intermittently extend out and hook the cable, and is also provided with a fixed clamping piece matched with the movable clamping part to clamp the cable when the movable clamping part hooks the cable and retracts; the punching cutter assembly comprises a punching cutter which is driven by a second air cylinder, and extends out of the clamping assembly to be matched with the punching surface on the movable clamping piece to punch the cable after the cable is clamped by the clamping assembly; the wire pulling rod assembly comprises a wire pulling rod which swings after the punching cutter stretches out to pull the cable between the clamping assembly and the wire outlet mechanism of the winding machine; the punching cutter and the wire pulling rod are respectively arranged at two sides of the clamping assembly.

2. A wire cutting and pulling mechanism as defined in claim 1, wherein: the movable clamping piece comprises an L-shaped body, the corner of the body is fixedly connected with a piston rod of the first cylinder, and two ends of the body extending from the corner are perpendicular to the piston rod of the first cylinder; the first end of the body is a clamping part; the second end of body is formed with the punching surface towards the side of first cylinder, and the end of second end has the kink towards the piston rod of first cylinder, and kink upper portion is formed with the portion of encorbelmenting of perpendicular to piston rod of first cylinder, and the portion of encorbelmenting is parallel with the first end of body.

3. A wire cutting and pulling mechanism as defined in claim 2, wherein: the tail end of the clamping part is obliquely provided with a hook towards the first cylinder.

4. A wire cutting and pulling mechanism as defined in claim 3, wherein: the wire cutting and pulling mechanism further comprises a vertical plate, and the first air cylinder and the second air cylinder are fixed on the vertical plate.

5. The wire cutting and pulling mechanism according to claim 4, wherein: the fixed clamping piece is a C-shaped square groove fixed on the vertical plate, the first air cylinder and the movable clamping piece are respectively arranged at two ends of the square groove, and piston rods of the punching cutter and the first air cylinder are sleeved in a cavity enclosed by the square groove and the vertical plate; the end face of the square groove, which faces the movable clamping piece, forms a clamping surface matched with the movable clamping piece.

6. A wire cutting and pulling mechanism as defined in claim 1, wherein: the wire pulling rod assembly comprises a motor for driving the wire pulling rod to swing.

7. A wire cutting and pulling mechanism as defined in claim 1, wherein: the wire pulling rod assembly comprises a third cylinder for driving the wire pulling rod to swing.