CN116191781A - Shaping device and shaping method for stator winding of molecular pump - Google Patents

Abstract

The invention provides a molecular pump stator winding shaping device and a shaping method, which belong to the technical field of motor stator winding shaping, wherein the molecular pump stator winding shaping device comprises: the shaping core column is suitable for extending into the wire slot, and one side surface of the shaping core column along the axial direction of the shaping core column is an arc-shaped surface, and the arc-shaped surface is suitable for being attached to a winding in the wire slot. According to the molecular pump stator winding shaping device provided by the invention, the side surface of the shaping core column is provided with the arc-shaped surface, after the winding is manufactured, the shaping core is pushed into the half groove, and the arc-shaped surface presses the winding in the wire groove, so that the winding is shaped, the operation is simple and convenient, and the cable is not damaged. And the end shaping device can also be used for shaping the end of the winding at the end of the motor stator, so that overrunning of the end winding is avoided, and the insulativity of the motor stator is ensured.

Description

Shaping device and shaping method for stator winding of molecular pump

Technical Field

The invention relates to the technical field of motor stator winding shaping, in particular to a molecular pump stator winding shaping device and a shaping method.

Background

The motor is a very important component in a molecular pump. The distributed winding stator generally adopts a winding and embedding integrated production mode, and the whole production process is completed by manual threading of operators. When the groove filling rate is high, the manual threading difficulty is high, and the cable is shaped for many times, so that the cable is easy to damage, the yield of the motor is low, and manpower and material resources are wasted; in addition, the production mode can not carry out cable shaping in advance, and the winding needs to be shaped for many times in the later period of winding production, so that cable damage is easy to cause.

Disclosure of Invention

Therefore, the invention provides a molecular pump stator winding shaping device and a shaping method.

In order to solve the technical problems, the invention provides a molecular pump stator winding shaping device, which comprises:

the shaping core column is suitable for extending into the wire slot, and one side surface of the shaping core column along the axial direction of the shaping core column is an arc-shaped surface, and the arc-shaped surface is suitable for being attached to a winding in the wire slot.

Optionally, the shaping stem end has a relief.

Optionally, the avoiding portion is an inclined slope.

Optionally, the avoiding portion is a chamfer of the end of the arc-shaped surface.

Optionally, an end shaping device is also included.

Optionally, the end shaping device comprises:

the locking mandrel is suitable for being arranged in the stator in a penetrating way;

the two ends of the locking mandrel are respectively provided with a pressing plate, and the pressing plates are suitable for pressing the stator end winding.

Optionally, locking nuts are arranged at two ends of the locking mandrel, and the locking mandrel is suitable for locking the pressing plate.

The shaping method comprises the steps of:

after the winding position is selected, completing the manufacture of a first group of windings, and inserting a shaping core plunger into an unspun half slot so as to reserve a winding space;

and taking out the shaping core column, continuing the second group of winding manufacture, and repeatedly inserting the shaping core column into the half slot without winding until the stator winding manufacture is completed.

Optionally, the method further comprises the step of shaping the stator winding ends by an end shaping device.

Optionally, the method further comprises the step of measuring the electrical parameters of the stator, and if the parameters do not meet the standards, adjusting the windings until the parameters meet the standards;

if the parameters meet the standards, finishing the end shaping, welding wire and wire binding of the stator winding;

coating paint-clearing glue, mounting an end shaping device, electrifying a winding, and melting the paint-clearing glue;

powering off, standing, and taking down the end shaping device after the glue is solidified;

and detecting the size of the stator, winding parameters and the insulating property of the stator, and sealing and storing the stator.

The technical scheme of the invention has the following advantages:

1. according to the molecular pump stator winding shaping device provided by the invention, the side surface of the shaping core column is provided with the arc-shaped surface, after the winding is manufactured, the shaping core is pushed into the half groove, and the arc-shaped surface presses the winding in the wire groove, so that the winding is shaped, the operation is simple and convenient, and the cable is not damaged.

2. According to the molecular pump stator winding shaping device provided by the invention, the end part of the shaping core column is provided with the avoiding part, and the possible damage to the cable can be further avoided through the avoiding part.

3. According to the molecular pump stator winding shaping device, the stator winding can be shaped at the end part through the end part shaping device, so that the condition that the winding height of the end part of the motor stator is over-limited is avoided, meanwhile, the insulation property of the end part of the motor stator is ensured, and the yield is further improved.

4. According to the shaping method provided by the invention, the shaping core column is used for shaping each group of windings in the manufacturing process, so that the number of times of wire arrangement in the winding manufacturing process is reduced, the windings are protected, the rejection rate is reduced, and the manufacturing efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a stator winding shaping device of a molecular pump according to embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of a shaping stem according to embodiment 1 of the present invention;

fig. 3 is a schematic structural diagram of an end shaping device according to embodiment 1 of the present invention.

Reference numerals illustrate:

1. a stator; 2. a wire slot; 3. shaping the stem; 4. locking the mandrel; 5. an end winding; 6. a top nut; 7. a lower nut; 8. an upper end cap; 9. and a lower end cover.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

Example 1

The embodiment provides a specific implementation mode of a molecular pump stator winding shaping device, as shown in fig. 1 and 2, a shaping core column can extend into a wire slot of a stator, an arc-shaped surface is arranged on the axial side surface of the shaping core column, after winding is manufactured, a shaping core plunger is put into a half slot, and the arc-shaped surface extrudes the winding in the wire slot so as to finish shaping the winding, so that the operation is simple and convenient, and damage to a cable cannot be caused.

Specifically, as shown in fig. 1, one of the slots on the stator may be divided into a left half slot and a right half slot, and during the winding manufacturing process, the winding is wound in the left half slot, and the shaping core column may be inserted into the right half slot to shape the winding.

In this embodiment, the tip of plastic stem has dodges the portion, can further avoid the damage that probably produces to the cable through dodging the portion. Specifically, the avoiding portion may be an inclined surface or a chamfer at the end of the arc surface, so long as the cable in the wire slot can be avoided.

In this embodiment, as shown in fig. 3, an end shaping device is further included, by which the stator winding can be end-shaped. Specifically, the end shaping device comprises a locking mandrel, a pressing plate and a locking nut. The locking core shaft is arranged in the stator, the pressing plate and the locking nut are respectively arranged at two ends of the locking core shaft, the pressing plate comprises an upper cover plate and a lower cover plate, the locking nut comprises an upper nut and a lower nut, the upper cover plate and the lower nut are locked through the upper nut, the lower cover plate is locked through the upper nut, the upper cover plate and the lower cover plate compress the end winding, and shaping of the end of the stator winding is achieved.

Example 2

The present example provides a specific implementation of the shaping method, implemented using the molecular pump stator winding shaping apparatus of example 1, comprising the steps of: after the winding position is selected, completing the manufacture of a first group of windings, and inserting a shaping core plunger into an unspun half slot so as to reserve a winding space; and taking out the shaping core column, continuing the second group of winding manufacture, and repeatedly inserting the shaping core column into the half slot without winding until the stator winding manufacture is completed.

The method further comprises the step of shaping the stator winding ends by means of an end shaping device.

The method also comprises the step of measuring the electrical parameters of the stator, and if the parameters do not meet the standards, the winding is adjusted until the parameters meet the standards; after the parameters meet the standards, finishing the end shaping, welding wire and wire binding of the stator winding; coating paint-clearing glue, mounting an end shaping device, electrifying a winding, and melting the paint-clearing glue; powering off, standing, and taking down the end shaping device after the glue is solidified; and detecting the size of the stator, winding parameters and the insulating property of the stator, and sealing and storing the stator. The shaping core column is used for shaping each group of windings in the manufacturing process, so that the number of times of wire shaping in the winding manufacturing process is reduced, the windings are protected, the rejection rate is reduced, and the manufacturing efficiency is improved.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims (10)

1. A molecular pump stator winding shaping apparatus, comprising:

the shaping core column is suitable for extending into the wire slot, and one side surface of the shaping core column along the axial direction of the shaping core column is an arc-shaped surface, and the arc-shaped surface is suitable for being attached to a winding in the wire slot.

2. The molecular pump stator winding shaping device of claim 1 wherein the shaping stem ends have relief portions.

3. The molecular pump stator winding shaping apparatus of claim 2 wherein the relief is a sloped ramp.

4. The molecular pump stator winding shaping apparatus of claim 2 wherein the relief is a chamfer of the arcuate face end.

5. The molecular pump stator winding shaping apparatus of claim 1 further comprising an end shaping apparatus.

6. The molecular pump stator winding shaping apparatus of claim 5 wherein the end shaping apparatus comprises:

the locking mandrel is suitable for being arranged in the stator in a penetrating way;

the two ends of the locking mandrel are respectively provided with a pressing plate, and the pressing plates are suitable for pressing the stator end winding.

7. The molecular pump stator winding shaping device of claim 6 wherein locking nuts are provided at both ends of the locking mandrel adapted to lock the pressure plate.

8. A shaping method comprising the molecular pump stator winding shaping device of any one of claims 1-7, further comprising the steps of:

after the winding position is selected, the first group of windings are manufactured, the shaping core is inserted into the half slot of the winding, and HA202208111 is adopted

Reserving a winding space;

and taking out the shaping core column, continuing the second group of winding manufacture, and repeatedly inserting the shaping core column into the half slot without winding until the stator winding manufacture is completed.

9. The shaping method of claim 8, further comprising the step of shaping the stator winding ends by an end shaping device.

10. The shaping method according to claim 9, further comprising the step of measuring an electrical parameter of the stator, and adjusting the winding if the parameter does not meet the criterion until the parameter meets the criterion;

if the parameters meet the standards, finishing the end shaping, welding wire and wire binding of the stator winding;

coating paint-clearing glue, mounting an end shaping device, electrifying a winding, and melting the paint-clearing glue;

powering off, standing, and taking down the end shaping device after the glue is solidified;

and detecting the size of the stator, winding parameters and the insulating property of the stator, and sealing and storing the stator.

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