Cylinder positioning tool for press-in of motor stator

Abstract

The utility model discloses a barrel positioning tool for pressing in a motor stator. The floating connector comprises an umbrella-shaped shaft connected with the bottom of the floating connector, the umbrella-shaped shaft is sleeved with an outer sleeve, at least two trapezoid grooves which are limited and slidably connected with trapezoid sliding blocks are evenly formed in the side face of the umbrella-shaped shaft, and the trapezoid sliding blocks are limited and slidably connected into the trapezoid grooves. According to the umbrella-shaped shaft provided by the scheme, the shell is firmly supported, accurate positioning of the barrel in the press-in process is achieved, good matching of a stator and a stator groove is ensured, and errors are reduced. The supporting block provided by the scheme can adapt to different cylinders by increasing and decreasing the thickness of the supporting block, so that the production cost is saved, the die changing time is shortened, and the production efficiency is also improved.

Description

TECHNICAL FIELD

[0001] The present scheme relates to the technical field of motor stator assembly, in particular to a cylinder positioning tool for motor stator pressing. BACKGROUND

[0002] With the development of the refrigeration, air conditioning and HVAC (heating, ventilation and air conditioning) industry, global manufacturing is generally transforming to intelligent manufacturing, and there is a higher requirement for high-precision and high-efficiency automatic equipment.

[0003] In the process of pressing the motor stator into the shell, the stator pressing cylinder is not straight, which causes the concentricity of the stator to be unable to be guaranteed when pressing, and the position deviates, resulting in product scrap.

[0004] Therefore, a cylinder positioning tool for motor stator pressing is needed to ensure the accurate positioning of the motor stator pressing cylinder. SUMMARY

[0005] The present scheme provides a cylinder positioning tool for motor stator pressing to solve the above problems.

[0006] To achieve the above purpose, the technical scheme adopted by the present scheme is: a cylinder positioning tool for motor stator pressing, comprising a umbrella-shaped shaft connected to the bottom of a floating joint, an outer sleeve is provided outside the umbrella-shaped shaft, at least two trapezoidal grooves are uniformly provided on the side surface of the outer sleeve and are slidingly connected with trapezoidal sliders, and the trapezoidal sliders are slidingly connected in the trapezoidal grooves.

[0007] Further, the connecting groove surface of the trapezoidal groove and the trapezoidal slider has a slope, and the end close to the floating joint is more protruding than the other end.

[0008] Further, the trapezoidal groove is provided with four.

[0009] Further, one side of the trapezoidal slider has a slope, the slope surface is fitted with the trapezoidal groove, and the other side is a flat surface movably connected with a support block.

[0010] Further, the support block is a rectangular structure, the arc surface of the outer periphery is fitted with the inner wall of the cylinder, and the support block is connected with the trapezoidal slider through a bolt or a screw.

[0011] Further, the support block is limited in the through hole provided on the side surface of the outer sleeve.

[0012] Further, the outer sleeve is integrally formed and consists of two hollow cylinders.

[0013] In summary, the present scheme has the following advantages:

[0014] The umbrella-shaped shaft provided by the present scheme firmly supports the shell, realizes the accurate positioning of the cylinder during pressing, ensures the good cooperation of the stator and the stator slot, and reduces errors.

[0015] The support block provided by the scheme can be adapted to different cylinder bodies by increasing or decreasing the thickness of the support block, thereby saving production cost, reducing mold changing time, and improving production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a schematic view of a motor stator pressing cylinder positioning tool;

[0017] Fig. 2 is a schematic view of an umbrella-shaped shaft;

[0018] Fig. 3 is a schematic view of an outer sleeve;

[0019] Among them:

[0020] 1, floating joint;

[0021] 2, umbrella-shaped shaft; 21, trapezoidal groove; 22, trapezoidal sliding block; 23, support block

[0022] 3, outer sleeve; 31, through hole. DETAILED DESCRIPTION

[0023] The scheme will be further described below in combination with the drawings and examples: Examples

[0024] A motor stator pressing cylinder positioning tool, as shown in Figs. 1-3 Fig. 1, comprises an umbrella-shaped shaft 2 connected to the bottom of a floating joint 1, and an outer sleeve 3 sleeved outside the umbrella-shaped shaft 2.

[0025] The floating joint 1 is connected with a hydraulic cylinder, and the umbrella-shaped shaft 2 is displaced up and down by hydraulic pressure.

[0026] The umbrella-shaped shaft 2 has at least two trapezoidal grooves 21 formed on the side surface, and a trapezoidal sliding block 22 is limited and slidably connected in the trapezoidal groove 21. One side of the trapezoidal sliding block 22 has a slope, and the slope surface is fitted with the trapezoidal groove 21. The other side is a flat surface for movably connecting a support block 23.

[0027] The umbrella-shaped shaft 2 provided by the scheme firmly supports the shell, realizes accurate positioning of the cylinder during the pressing process, ensures good cooperation between the stator and the stator slot, and reduces errors.

[0028] The connecting groove surface of the trapezoidal groove 21 and the trapezoidal sliding block 22 has a slope, and the end close to the floating joint 1 is more protruding than the other end. In this embodiment, four trapezoidal grooves 21 are provided.

[0029] The support block 23 is rectangular structure, the arc surface of the outer periphery is attached to the inner wall of the cylinder, is connected through the bolt or screw and the trapezoidal sliding block 22, the thickness of the support block 23 can be increased or decreased, is suitable for different cylinders, not only saves the production cost, reduces the die changing time, but also improves the production efficiency.

[0030] The support block 23 is rectangular structure, the arc surface of the outer periphery is attached to the inner wall of the cylinder, is connected through the bolt or screw and the trapezoidal sliding block 22, the thickness of the support block 23 can be increased or decreased, is suitable for different cylinders, not only saves the production cost, reduces the die changing time, but also improves the production efficiency.

[0031] Specifically, the umbrella-shaped shaft 2 is displaced downward under the action of hydraulic pressure, and in the relative position, the trapezoidal sliding block 22 drives the support block 23 to be opened outward together, firmly supports the shell, ensures that there is no deflection in the process of pressing in, ensures the positioning accuracy, and improves the repeat positioning accuracy.

[0032] The outer sleeve 3 is integrally formed and consists of two hollow cylinders, four through holes 31 corresponding to the support block 23 are formed on the side surface, and the support block 23 is limited in the through hole 31.

[0033] In the scheme, the floating joint 1, the umbrella-shaped shaft 2 and the outer sleeve 3 are made of high-strength and wear-resistant alloy material, so as to enhance the durability and stability of the mold, reduce the positioning error caused by material fatigue.

[0034] In summary, the umbrella-shaped shaft provided by the application firmly supports the shell, realizes accurate positioning of the cylinder in the pressing process, ensures good cooperation between the stator and the stator slot, and reduces the error.

[0035] The support block 23 provided by the application can be adapted to different cylinders by increasing or decreasing the thickness of the support block 23, thereby saving the production cost, reducing the die changing time and improving the production efficiency.

[0036] The above embodiment is only for illustrating the technical concept and characteristics of the scheme, and the purpose is to enable those skilled in the art to understand the content of the scheme and implement it, and cannot limit the protection scope of the scheme. Any equivalent transformation or modification made according to the spirit and essence of the scheme should be covered within the protection scope of the scheme.

[0037] In the description of the scheme, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, or the connection between two elements inside.

[0038] For those skilled in the art, the specific meaning of the above terms in the scheme can be understood according to the specific circumstances.

[0039] It should be understood that the above-described implementations are merely exemplary, and not limiting, and that various obvious or equivalent modifications or replacements can be made to the above-described details without departing from the essential principles of the present scheme, and all such modifications or replacements will be included in the protection scope of the present scheme.

Claims

1. A cylindrical positioning fixture for pressing in a motor stator, characterized in that: The umbrella-shaped shaft (2) is connected to the bottom of the floating joint (1). The umbrella-shaped shaft (2) is covered with an outer sleeve (3). At least two trapezoidal grooves (21) are evenly opened on the side to limit and slide the trapezoidal slider (22). The trapezoidal slider (22) is limited and slidably connected inside the trapezoidal grooves (21).

2. The cylindrical positioning fixture for pressing in the motor stator according to claim 1, characterized in that: The connecting groove surface of the trapezoidal groove (21) and the trapezoidal slider (22) has a slope, and the end closer to the floating joint (1) protrudes more than the other end.

3. The cylindrical positioning fixture for pressing in the motor stator according to claim 2, characterized in that: Four trapezoidal slots (21) are provided.

4. The cylindrical positioning fixture for pressing in the motor stator according to claim 2, characterized in that: The trapezoidal slider (22) has a slope on one side, which fits the trapezoidal groove (21), and the other side is a plane of the movable connecting support block (23).

5. The cylindrical positioning fixture for pressing in the motor stator according to claim 4, characterized in that: The support block (23) is a rectangular structure with an outer arc surface that fits against the inner wall of the cylinder and is connected to the trapezoidal slider (22) by a pin or screw.

6. The cylindrical positioning fixture for pressing in the motor stator according to claim 5, characterized in that: The support block (23) is confined within the through hole (31) opened on the side of the outer jacket (3).

7. The cylindrical positioning fixture for pressing in the motor stator according to claim 6, characterized in that: The outer jacket (3) is integrally formed and consists of two hollow cylinders.

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