Rounding and shrinkage fit integrated tool

Abstract

The utility model discloses a circle splicing and shrinkage fit integrated tool, and relates to the field of motor manufacturing. The four corners of the hot jacket base are supported by guide shaft supports and are fixedly provided with four groups of guide shafts, the hot jacket base is further supported by positioning columns and is fixedly provided with a circle splicing base, the hot jacket pressing plate is installed on the guide shafts through linear bearings and can move up and down along the guide shafts, the circle splicing base supports and fixes a stator, and the stator is fixed on the circle splicing base through the linear bearings. And the casing is supported and fixed by the hot jacket pressing plate. Round splicing and hot sleeving of the machine shell can be achieved, the stator splicing roundness, the coaxiality of the stator and the machine shell and the installation positions of the machine shell and the stator are guaranteed, and the problems that the length of the machine shell cannot be guaranteed, and the seam allowance distance cannot be controlled are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of assembly, and a round assembling and hot-joint integrated tool. BACKGROUND

[0002] In the field of motor manufacturing, the precise fit of the stator and the casing is a key factor in ensuring motor performance and reliability. Traditional cold assembly methods have gradually failed to meet the high requirements of modern motor manufacturing due to limitations in fit accuracy and strength. Therefore, the hot-joint process, as an effective means to improve fit accuracy and strength, has been widely used in the assembly process of motor stators and casings.

[0003] The basic principle of the hot-joint process is to use the thermal expansion and contraction properties of materials. By heating the casing, its inner diameter size is increased to allow the stator core to be assembled smoothly. As the temperature of the casing decreases, the inner diameter size decreases, achieving an interference fit between the stator and the casing. This process not only improves the tightness of the fit, but also enhances the mechanical stability and durability of the motor. For example, the manufacturing method of the hot-joint tool for the casing and the stator, publication number: CN101345203B, and the manufacturing method of the hot-joint machine for the casing and the stator, publication number: CN102820632A, both disclose related content.

[0004] In the processing of motor stator casings, the machining accuracy of the stop is crucial for the assembly and performance of the motor. Traditional machining methods may not provide sufficient machining accuracy and reliability, especially in high-end motor manufacturing where machining accuracy is required.

[0005] Due to the processing technology, after the stator is hot-jointed with the casing and the glue is poured, the diameter of the stop is returned to the machining car. The length of the casing cannot be positioned, and the distance of the stop cannot be guaranteed. To overcome the above problems, the process is modified to first process the length and stop of the casing, and then hot-joint the stator. Therefore, a tool is needed to assist in completing the round assembling and hot-jointing steps. INVENTION CONTENTS

[0006] In view of the deficiencies of the prior art, the utility model provides a round assembling and hot-joint integrated tool, which can realize the round assembling and hot-jointing of the casing, ensure the roundness of the stator, ensure the coaxiality of the stator and the casing, and ensure the installation position of the casing and the stator, solve the problem of the length of the casing and the distance of the stop.

[0007] To achieve the above purpose, the application discloses a round assembling and hot-joint integrated tool, which comprises: a hot-joint base, four groups of guide shafts are supported and fixed on the four corners of the hot-joint base through guide shaft support, and a round assembling base is also supported and fixed on the hot-joint base through a positioning column; a hot-joint pressing plate is installed on the guide shaft through a linear bearing and can move up and down along the guide shaft; the round assembling base supports and fixes the stator, and the hot-joint pressing plate supports and fixes the casing.

[0008] Further, the positioning column is arranged on the hot jacket base through threaded connection, and the positioning column and the circle-pasting base are connected through threaded connection.

[0009] Further, the number of the positioning columns is four groups.

[0010] Further, the hot jacket base is further provided with a limiting pin column, and the circle-pasting base is provided with an annular space for accommodating the lower edge of the stator.

[0011] The beneficial effects of the technical scheme of the utility model are as follows:

[0012] The inner diameter of the circle-pasting base and the outer clamp ensure the roundness when the stator is spliced; the perpendicular movement of the hot jacket pressing plate is ensured through the cooperation of the guide shaft, the linear bearing and the guide shaft; the coaxiality with the hot jacket pressing plate is ensured through the cooperation of the circle-pasting base, the positioning column and the hot jacket base; the movement distance of the hot jacket pressing plate is limited to ensure the installation size of the casing and the stator. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0014] Fig. 1 It is the overall structure schematic diagram of the utility model;

[0015] Fig. 2 It is the use state schematic diagram of the utility model;

[0016] Fig. 3 It is the structure schematic diagram of the circle-pasting base of the utility model.

[0017] Among them: hot jacket base-1, guide shaft support-2, guide shaft-3, positioning column-4, circle-pasting base-5, hot jacket pressing plate-6, linear bearing-7, limiting pin column-8, stator-100, casing-200. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0019] Reference Figs. 1-3 A round assembling and hot jacketing integrated tool, comprising: a hot jacket base 1, four groups of guide shafts 3 are supported and fixed on the four corners of the hot jacket base through guide shaft supports 2, and a round assembling base 5 is also supported and fixed on the hot jacket base 1 through positioning columns 4; the tool further comprises a hot jacket pressing plate 6, which is installed on the guide shafts 3 through linear bearings 7 and can move up and down along the guide shafts, the round assembling base supports and fixes a stator 100, and the hot jacket pressing plate 6 supports and fixes a machine shell 200.

[0020] In use, after the stator and the machine shell are installed, they are placed in a pressing machine; the stator is placed on the round assembling base, the hot jacket pressing plate is pressed to the middle part of the stator, and the machine shell is placed on the hot jacket pressing plate after being heated; at this time, the machine shell and the stator have been preliminarily matched, and the pressing machine is used to press the machine shell until the cylindrical limiting pin column is limited to complete the hot jacketing of the stator.

[0021] Further, the positioning columns 4 are arranged on the hot jacket base 1 through threaded connection, and the positioning columns 4 and the round assembling base are connected through threaded connection.

[0022] Further, the number of the positioning columns is four groups.

[0023] Further, the hot jacket base 1 is further provided with limiting pin columns 8, and the round assembling base 5 is provided with an annular space for accommodating the lower edge of the stator.

[0024] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A tooling for integrated circular heat-shrink fitting, characterized in that: include: The heat-shrink base (1) has four guide shafts (3) supported and fixed at its four corners by guide shaft supports (2). The heat-shrink base (1) is also supported and fixed by positioning columns (4) for the circular base (5). It also includes a heat-shrink pressure plate (6), which is installed on the guide shaft (3) by a linear bearing (7) and can move up and down along the guide shaft. The circular base supports and fixes the stator (100), and the heat-shrink pressure plate (6) supports and fixes the housing (200).

2. The integrated tooling for circular heat fitting according to claim 1, characterized in that: The positioning post (4) is threadedly connected to the heat-shrink base (1), and the positioning post (4) is threadedly connected to the round base.

3. The integrated tooling for circular heat fitting according to claim 1, characterized in that: The number of positioning posts is four sets.

4. The integrated tooling for circular heat fitting according to claim 1, characterized in that: The heat-shrink base (1) is also provided with a limiting pin (8).

5. The integrated tooling for circular heat fitting according to claim 1, characterized in that: The circular base (5) is provided with an annular space to accommodate the lower edge of the stator.

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