Inner and outer stator press fitting equipment

The design of the inner and outer stator pressing equipment has enabled fully automated assembly of inner and outer stators, solving the problems of low assembly efficiency and high cost in existing technologies, and improving production efficiency and yield.

CN223514743UActive Publication Date: 2025-11-04NANJING TESTECH TECH
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Patent Information

Application Number
CN202422914788.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-11-04
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

In existing technologies, the inner and outer stators are prone to loosening during assembly, and the positioning fixtures used during assembly have low efficiency, high production costs, and are difficult to automate.

Method used

An inner and outer stator press-fitting device is adopted, including an outer core transfer assembly, an inner core transfer assembly, an outer core positioning assembly, an inner core positioning assembly, an inner core positioning assembly, an inner core, an outer core stator, an outer core positioning assembly, an inner core stator, an outer core positioning group, an inner core stator, an outer core positioning assembly, an inner core, an inner core positioning assembly, an inner core, an inner core positioning assembly, an inner core positioning assembly, and a press-fitting assembly. These components enable the automated assembly of the inner and outer stators.

Benefits of technology

It has achieved fully automated assembly of inner and outer stators, which has improved production efficiency and yield, and reduced production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses inner and outer stator press fitting equipment which comprises an outer iron core transfer assembly, an inner iron core transfer assembly, an outer iron core positioning assembly, an inner iron core positioning assembly and a press fitting assembly. The inner iron core positioning assembly is arranged in the middle of the outer iron core positioning assembly; the press-fitting assembly is arranged above the outer iron core positioning assembly and the inner iron core positioning assembly through the press installation supporting assembly and used for pressing the inner iron core into the outer iron core. The outer iron core transfer assembly and the inner iron core transfer assembly are arranged on the press installation supporting assembly and used for transferring the outer iron core and the inner iron core to the outer iron core positioning assembly and the inner iron core positioning assembly correspondingly. According to the inner and outer stator press-fitting equipment, the inner iron core and the outer iron core can be positioned respectively, then press-fitting is carried out, and automation is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to motor manufacturing field especially a kind of inner and outer stator press-fitting equipment. BACKGROUND

[0002] In recent years, with the rapid and vigorous development of new energy automobile industry, users also put forward higher requirements to new energy automobile, and driving motor as the main power source of new energy automobile, its use performance and reliability will have great influence on new energy automobile.In driving motor, a very key component is stator assembly, the core part of stator assembly has integrated and split two structure forms, so-called split, namely the yoke part and tooth part of originally integrated stator are made into split, namely stator includes two parts of inner stator and outer stator, and the advantage of this is that the processing difficulty is lower and operation is simpler for continuous wave winding.

[0003] When manufacturing stator assembly, it will involve the inner stator and outer stator assembly process.However, a large part of the existing outer stator is also adopted by multiple split structure, and the stator quality after assembly is easy to loosen and affect the inner stator and outer stator assembly, the number of positioning tooling required is large, which causes the production cost to rise and the production efficiency to reduce.And the whole piece of outer stator cannot be simply assembled using mechanical gripper because outer stator (outer core) and inner stator (inner core) have deformation ability, need to be positioned first, then assembled, and the shape and position of inner and outer stator need to be kept constant during assembly, otherwise it is easy to cause damage to stator assembly, so currently semi-automatic and semi-mechanical tooling is mostly used. SUMMARY

[0004] The problem to be solved by the utility model is that, in view of the above-mentioned shortcomings in the prior art, an improved or alternative scheme is proposed, especially a full-automatic inner and outer stator assembly device to improve the inner and outer stator assembly efficiency and yield effect.

[0005] To solve the above problems, the utility model adopts the following scheme: a kind of inner and outer stator press-fitting equipment, characterized by including outer core transfer assembly, inner core transfer assembly, outer core positioning assembly, inner core positioning assembly and press-fitting assembly;The inner core positioning assembly is set in the middle of outer core positioning assembly;The press-fitting assembly is set above outer core positioning assembly and inner core positioning assembly by press machine installation support assembly, for press-fitting inner core into outer core;The outer core transfer assembly and inner core transfer assembly are set on press machine installation support assembly, and are respectively used to transfer outer core and inner core to outer core positioning assembly and inner core positioning assembly.

[0006] Further, the inner and outer stator press-fitting equipment is characterized in that the outer core positioning assembly comprises a core press-fitting mounting plate, an outer core positioning sleeve, a centering assembly and a clamping jaw assembly; the core press-fitting mounting plate is arranged on the rack; the outer core positioning sleeve is fixedly arranged on the core press-fitting mounting plate; the clamping jaw assembly comprises a motor, a linear guide rail, an outer left circular clamping jaw and an outer right circular clamping jaw; the outer left circular clamping jaw and the outer right circular clamping jaw are arranged on the linear guide rail, and the center positions of the outer left circular clamping jaw and the outer right circular clamping jaw are the outer core positioning sleeve; the motor is connected with the outer left circular clamping jaw and the outer right circular clamping jaw through a transmission assembly and a screw rod, and drives the outer left circular clamping jaw and the outer right circular clamping jaw to move on the linear guide rail, so as to clamp the outer core placed in the outer core positioning sleeve; the centering assembly is symmetrically arranged on both sides of the outer core positioning sleeve, and comprises a pneumatic cylinder, a linear guide rail and an inner core limiting block; the inner core limiting block is arranged on the linear guide rail and is driven by the pneumatic cylinder; the inner core limiting block is provided with a groove matched with the inner core.

[0007] Further, the inner and outer stator press-fitting equipment is characterized in that the inner core positioning assembly comprises an inner core mounting plate, a press lower connecting plate and an inclined cutting tool; the press lower connecting plate is fixed below the rack through a guide shaft and is located directly below the press-fitting assembly; the inner core mounting plate is sleeved on the guide shaft and is connected with the press lower connecting plate through a pneumatic cylinder and is driven by the pneumatic cylinder to move along the guide shaft; the inclined cutting tool is fixed on the inner core mounting plate and penetrates through the outer core positioning assembly.

[0008] Further, the inner and outer stator press-fitting equipment is characterized in that the inner core positioning assembly comprises an inner core mounting plate, a press lower connecting plate and an inclined cutting tool; the press lower connecting plate is fixed below the rack through a guide shaft and is located directly below the press-fitting assembly; the inner core mounting plate is sleeved on the guide shaft and is connected with the press lower connecting plate through a pneumatic cylinder and is driven by the pneumatic cylinder to move along the guide shaft; the inclined cutting tool is fixed on the inner core mounting plate and penetrates through the outer core positioning assembly.

[0009] Further, the inner and outer stator press-fitting equipment is characterized in that the inner core positioning assembly comprises an inner core mounting plate, a press lower connecting plate and an inclined cutting tool; the press lower connecting plate is fixed below the rack through a guide shaft and is located directly below the press-fitting assembly; the inner core mounting plate is sleeved on the guide shaft and is connected with the press lower connecting plate through a pneumatic cylinder and is driven by the pneumatic cylinder to move along the guide shaft; the inclined cutting tool is fixed on the inner core mounting plate and penetrates through the outer core positioning assembly.

[0010] Further, the inner and outer stator press-fitting equipment is characterized in that the press-fitting assembly comprises a press machine driving assembly, an upper press machine connecting plate, a lower press machine connecting plate and a press-fitting wear plate; the press machine driving assembly is fixedly arranged on the press machine mounting support assembly; the upper press machine connecting plate is fixedly connected with the push rod of the press machine driving assembly; the press-fitting wear plate is fixedly connected with the lower press machine connecting plate; the lower press machine connecting plate is fixedly connected with the upper press machine connecting plate through screws; the press-fitting wear plate is provided with a press groove matched with the inner iron core, and the press-fitting wear plate is provided with positioning pins around; the outer iron core positioning assembly is provided with positioning pin holes matched with the positioning pins.

[0011] Further, the inner and outer stator press-fitting equipment is characterized in that the iron core press-fitting mounting plate is fixed with the rack through four groups of adjusting screw assemblies, so as to adjust the position of the iron core press-fitting mounting plate on the rack.

[0012] Further, the inner and outer stator press-fitting equipment is characterized in that the outer side of the outer iron core positioning sleeve is provided with a group of opposite emission sensors, which are used for detecting whether the outer iron core is placed into the outer iron core positioning sleeve.

[0013] Further, the inner and outer stator press-fitting equipment is characterized in that the beveling tooling comprises a beveling main shaft, a beveling center shaft, a beveling sliding block, a beveling cover plate, a push rod assembly, a servo motor and a speed reducer; the beveling main shaft is fixedly arranged on the inner iron core mounting plate, and the shaft hole of the beveling main shaft is designed; the beveling center shaft penetrates through the beveling main shaft, and the top of the beveling center shaft is provided with a beveling sliding groove; the beveling sliding block is provided with a beveling sliding rail matched with the beveling sliding groove; the beveling sliding block is movably connected with the beveling center shaft through the beveling sliding rail and the beveling sliding groove; the top of the beveling main shaft is provided with openings matched with the beveling sliding block for mounting the beveling sliding block; the beveling cover plate is fixedly arranged on the top of the beveling main shaft; the bottom of the beveling center shaft is connected with the servo motor and the speed reducer through the push rod assembly; the beveling center shaft is driven to move vertically along the beveling main shaft through the servo motor and the speed reducer; and the beveling sliding block moves horizontally along the top opening of the beveling main shaft.

[0014] The technical effects of the utility model are as follows: the outer iron core and the inner iron core are grabbed by the outer iron core transfer assembly and the inner iron core transfer assembly, automatic feeding is realized, the outer iron core calibration jig and the inner iron core calibration jig are arranged on the outer iron core transfer assembly and the inner iron core transfer assembly respectively, the position calibration of the outer iron core and the inner iron core is realized when the materials are prepared, the orientation adjustment is completed when the outer iron core and the inner iron core are grabbed by the clamping jaw and moved to the outer iron core positioning assembly and the inner iron core positioning assembly, and the second adjustment is not needed.

[0015] The outer iron core positioning assembly maintains the shape characteristics of the outer iron core by cooperating with the outer iron core positioning sleeve and the clamping jaw assembly, so that the outer iron core maintains the shape during assembly and does not deform. The centering assembly is used to guide the assembly of the inner iron core and the outer iron core, and also serves as a pressing function for the outer iron core, further ensuring the constant position and shape of the outer iron core.

[0016] The inner iron core positioning assembly suspends the beveling tool below the outer iron core positioning sleeve through the inner iron core mounting plate and the lower connecting plate of the press, and when the inner iron core transfer assembly transfers the inner iron core to the beveling tool, the beveling slider at the top of the beveling tool expands to support the inner iron core, maintaining the shape characteristics of the inner iron core matching the outer iron core, ensuring that the inner iron core can be inserted into the outer iron core without damage. Then the inner iron core mounting plate cooperates with the press assembly to complete the assembly. The main pressing force during assembly is provided by the wear-resistant plate, and the inner iron core mounting plate descends synchronously, ensuring that the beveling tool is relatively stationary with the inner iron core, i.e. maintaining the shape and structure of the inner iron core constant during pressing, thereby ensuring the yield rate of the inner and outer iron core assembly.

[0017] The design cooperates the outer iron core transfer assembly, the inner iron core transfer assembly, the outer iron core positioning assembly, the inner iron core positioning assembly and the press assembly, so that the assembly process of the inner and outer iron cores is a fully automated process without manual intervention, thereby greatly improving the production efficiency. At the same time, the design completes the position adjustment of the inner and outer iron cores through the outer iron core transfer assembly and the inner iron core transfer assembly, eliminating the need for direction and position adjustment of the inner and outer iron cores before assembly, making the structure of the press equipment simpler. The outer iron core positioning assembly and the inner iron core positioning assembly maintain the shape and structure of the inner and outer iron cores during assembly, which also makes the pressing process smoother and controls the yield rate. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the inner and outer stator press equipment.

[0019] Figure 2 It is a structural schematic diagram of the outer iron core transfer assembly and the inner iron core transfer assembly.

[0020] Figure 3 It is a schematic diagram of the inner iron core positioning assembly.

[0021] Figure 4 It is a schematic diagram of the outer iron core positioning assembly.

[0022] Figure 5 It is a schematic diagram of the outer iron core positioning assembly and the inner iron core positioning assembly.

[0023] Figure 6 It is an enlarged schematic diagram of the outer iron core transfer assembly.

[0024] Figure 7 It is an enlarged schematic diagram of the inner iron core transfer assembly.

[0025] Figure 8 Detail of beveling tooling Figure 1 .

[0026] Figure 9 Detail of beveling tooling Figure 2 .

[0027] Wherein, 1 is inner core transfer assembly, 2 is outer core transfer assembly, 3 is inner core positioning assembly, 4 is outer core positioning assembly, 5 is press assembly, 6 is press mounting support assembly, 7 is lifting and transverse moving connecting piece, 8 is air cylinder, 91 is outer core, 92 is inner core, 11 is inner core transverse moving assembly, 12 is inner core lifting assembly, 13 is inner core clamping jaw assembly, 14 is inner core calibration mold table, 21 is outer core transverse moving assembly, 22 is outer core lifting assembly, 23 is outer core clamping jaw assembly, 24 is outer core calibration mold table, 31 is inner core mounting plate, 32 is lower connecting plate of press, 33 is beveling tooling, 332 is beveling spindle, 335 is beveling center shaft, 333 is beveling sliding block, 334 is cover plate, 336 is push rod assembly, 331 is servo motor and speed reducer, 3331 is oblique sliding rail, 3351 is oblique sliding groove, 41 is core press mounting plate, 42 is outer core positioning sleeve, 43 is centering assembly, 44 is clamping jaw assembly, 441 is motor, 442 is linear guide rail, 443 is outer left circular clamping jaw, 444 is outer right circular clamping jaw, 51 is press driving assembly, 52 is upper connecting plate of press, 53 is lower connecting plate of press, 54 is wear-resistant plate of press, 541 is press groove. DETAILED DESCRIPTION

[0028] The utility model will be made further detailed explanation in combination with the drawings.

[0029] Embodiment: as Figure 1 shown, a kind of inner and outer stator press equipment, including outer core transfer assembly, inner core transfer assembly, outer core positioning assembly, inner core positioning assembly and press assembly;The inner core positioning assembly is set to outer core positioning assembly middle;The press assembly is set to outer core positioning assembly and inner core positioning assembly above by press mounting support assembly, for inner core is pressed into outer core;The outer core transfer assembly and inner core transfer assembly are set to press mounting support assembly, are respectively used to transfer outer core and inner core to outer core positioning assembly and inner core positioning assembly.

[0030] As Figure 4 , Figure 5As shown, the outer iron core positioning assembly includes an iron core press mounting plate, an outer iron core positioning sleeve, a centering assembly, and a jaw assembly; the iron core press mounting plate is arranged on the rack; the outer iron core positioning sleeve is fixedly arranged on the iron core press mounting plate; the jaw assembly includes a motor, a linear guide rail, an outer left circular jaw, and an outer right circular jaw; the outer left circular jaw and the outer right circular jaw are arranged on the linear guide rail, and the center positions of the outer left circular jaw and the outer right circular jaw are the outer iron core positioning sleeve; the motor is connected with the outer left circular jaw and the outer right circular jaw through a transmission assembly and a screw rod, and drives the outer left circular jaw and the outer right circular jaw to move on the linear guide rail, for clamping the outer iron core placed in the outer iron core positioning sleeve; the centering assembly is symmetrically arranged on both sides of the outer iron core positioning sleeve, and includes a gas cylinder, a linear guide rail, and an inner iron core limiting block; the inner iron core limiting block is arranged on the linear guide rail and is driven by the gas cylinder; a groove matched with the inner iron core is arranged on the inner iron core limiting block; the iron core press mounting plate is fixed with the rack through four groups of adjusting screw assemblies, for adjusting the position of the iron core press mounting plate on the rack; a set of opposite emission sensors are arranged on the outer side of the outer iron core positioning sleeve, for detecting whether the outer iron core is placed in the outer iron core positioning sleeve.

[0031] As shown in Figure 3 , Figure 5 , the inner iron core positioning assembly includes an inner iron core mounting plate, a press lower connecting plate, and an inclined cutting tool; the press lower connecting plate is fixed below the rack through a guide shaft and is located directly below the press assembly; the inner iron core mounting plate is sleeved on the guide shaft and is connected with the press lower connecting plate through a gas cylinder and is driven by the gas cylinder to move along the guide shaft; the inclined cutting tool is fixed on the inner iron core mounting plate and penetrates through the outer iron core positioning assembly; the inclined cutting tool includes an inclined cutting main shaft, an inclined cutting center shaft, an inclined cutting sliding block, an inclined cutting cover plate, a push rod assembly, a servo motor, and a speed reducer; the inclined cutting main shaft is fixedly arranged on the inner iron core mounting plate and has an axial hole; the inclined cutting center shaft penetrates through the inclined cutting main shaft and has an inclined sliding groove at the top; the inclined cutting sliding block has an inclined sliding rail matched with the inclined sliding groove; the inclined cutting sliding block is movably connected with the inclined cutting center shaft through the inclined sliding rail and the inclined sliding groove; the inclined cutting main shaft has openings around the top for mounting the inclined cutting sliding block; the inclined cutting cover plate is fixedly arranged on the top of the inclined cutting main shaft; the inclined cutting center shaft is connected with the servo motor and the speed reducer through the push rod assembly; the inclined cutting center shaft is driven by the servo motor and the speed reducer to move vertically along the inclined cutting main shaft; the inclined cutting sliding block moves horizontally along the top opening of the inclined cutting main shaft.

[0032] As shown in Figure 2 , Figure 7As shown in the drawings, the inner core transfer assembly includes an inner core horizontal transfer assembly, an inner core lifting assembly, an inner core jaw assembly, and an inner core calibration mold table; the inner core horizontal transfer assembly is horizontally arranged on the press mounting support assembly; the inner core lifting assembly is connected with the inner core horizontal transfer assembly through a lifting horizontal transfer connecting piece; the inner core jaw assembly is arranged on the inner core lifting assembly; the inner core calibration mold table is arranged on the rack and located below the inner core jaw assembly, used for placing and calibrating the inner core.

[0033] As shown in the drawings, Figure 2 , Figure 6 As shown in the drawings, the outer core transfer assembly includes an outer core horizontal transfer assembly, an outer core lifting assembly, an outer core jaw assembly, and an outer core calibration mold table; the outer core horizontal transfer assembly is horizontally arranged on the press mounting support assembly; the outer core lifting assembly is connected with the outer core horizontal transfer assembly through a lifting horizontal transfer connecting piece; the outer core jaw assembly is arranged on the outer core lifting assembly; the outer core calibration mold table is arranged on the rack and located below the outer core jaw assembly, used for placing and calibrating the outer core.

[0034] As shown in the drawings, Figure 2 The pressing assembly includes a press driving assembly, a press upper connecting plate, a press lower connecting plate, and a pressing wear-resistant plate; the press driving assembly is fixedly arranged on the press mounting support assembly; the press upper connecting plate is fixedly connected with the push rod of the press driving assembly; the pressing wear-resistant plate is fixedly connected with the press lower connecting plate; the press lower connecting plate is fixedly connected with the press upper connecting plate through screws; the pressing wear-resistant plate is provided with a pressing groove matched with the inner core, and the pressing wear-resistant plate is provided with positioning pins around, and the outer core positioning assembly is provided with positioning pin holes matched with the positioning pins.

Claims

1. An inner and outer stator press-fitting apparatus characterized by comprising: The application relates to a core positioning assembly for a core pressing machine.

2. The inner and outer stator press fitting apparatus according to claim 1, wherein The outer core positioning assembly comprises a core pressing installation plate, an outer core positioning sleeve, a centering assembly and a clamping jaw assembly.

3. The inner and outer stator press fitting apparatus according to claim 1, wherein The inner core positioning assembly comprises an inner core installation plate, a press lower connecting plate and an inclined cutting tool.

4. The inner and outer stator press fitting apparatus according to claim 1, wherein The inner core transfer assembly comprises an inner core horizontal moving assembly, an inner core lifting assembly, an inner core clamping jaw assembly and an inner core calibration die table.

5. The inner and outer stator press fitting apparatus according to claim 1, wherein The outer core transfer assembly comprises an outer core horizontal moving assembly, an outer core lifting assembly, an outer core clamping jaw assembly and an outer core calibration die table. The outer core calibration die table is arranged on a rack below the outer core clamping jaw assembly and is used for placing and calibrating the outer core.

6. The inner and outer stator press fitting apparatus according to claim 1, wherein The press-fitting assembly comprises a press driving assembly, an upper press connecting plate, a lower press connecting plate and a press wear plate; the press driving assembly is fixedly arranged on a press mounting support assembly; the upper press connecting plate is fixedly connected with a push rod of the press driving assembly; the press wear plate is fixedly connected with the lower press connecting plate; the lower press connecting plate is fixedly connected with the upper press connecting plate through screws; the press wear plate is provided with a press groove matched with an inner core, and the press wear plate is provided with positioning pins around; the outer core positioning assembly is provided with positioning pin holes matched with the positioning pins.

7. The inner and outer stator press fitting apparatus according to claim 2, wherein The core press-fitting mounting plate is fixed to the rack through four groups of adjusting screw assemblies, and is used for adjusting the position of the core press-fitting mounting plate on the rack.

8. The inner and outer stator press fitting apparatus according to claim 2, wherein The outer side of the outer core positioning sleeve is provided with a group of opposite radiation sensors, which are used for detecting whether the outer core is placed into the outer core positioning sleeve.

9. The inner and outer stator press fitting apparatus according to claim 3, wherein The beveling tool comprises a beveling main shaft, a beveling center shaft, a beveling sliding block, a beveling cover plate, a push rod assembly, a servo motor and a speed reducer; the beveling main shaft is fixedly arranged on the inner core mounting plate, and the shaft hole of the beveling main shaft is designed; the beveling center shaft penetrates through the beveling main shaft, and the top of the beveling center shaft is provided with a slanting sliding groove; the beveling sliding block is provided with a slanting sliding rail matched with the slanting sliding groove; the beveling sliding block is movably connected with the beveling center shaft through the slanting sliding rail and the slanting sliding groove; the top of the beveling main shaft is provided with openings matched with the beveling sliding block for mounting the beveling sliding block; the beveling cover plate is fixedly arranged on the top of the beveling main shaft; the bottom of the beveling center shaft is connected with the servo motor and the speed reducer through the push rod assembly; the beveling center shaft is driven to move vertically along the beveling main shaft through the servo motor and the speed reducer; and the beveling sliding block moves horizontally along the top opening of the beveling main shaft.