Splicing block type motor stator integral circle splicing tool

Abstract

The utility model discloses a spliced block type motor stator integral circle splicing tool, which is characterized in that a lower positioning groove is formed in the middle of the top of a base, and an upper positioning groove is formed in the middle of the bottom of an upper pressing plate and used for being matched with a positioning boss to position a mold core; the stator assembly is attached to the surface of the mold core to be spliced, a lower receding groove is formed in the top of the base, and a lower receding groove is formed in the bottom of the upper pressing plate and used for receding a coil in the stator assembly. A plurality of avoiding holes are formed in the top of the upper pressing plate and are used for avoiding the coil; an outer machine sleeve is arranged between the upper pressing plate and the base and used for being matched with the mold core to be attached to and press the stator assembly. According to the utility model, the roundness tolerance of the inner circle is ensured to be within the qualified range allowed by the product after the stator is spliced and shrunk, the tolerance grade is improved, the operation is simple, and the disassembly is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor production technical field especially relates to a block formula motor stator whole round assembling tool. BACKGROUND

[0002] The block formula motor is the stator is divided into several blocks, after winding, assemble into a whole round structure stator, this method makes that the slot full rate can be higher, the coil end is shorter, therefore has very big advantage in electromagnetic performance aspect. However, this design brings the challenge to the control of stator roundness tolerance, is the main factor of influencing motor tooth slot torque and torque ripple, needs to guarantee that the inner circle roundness tolerance after stator round assembling hot jacket is ensured in the allowable qualified range of product, improves the tolerance grade. SUMMARY

[0003] In order to solve the tolerance control difficult of the stator round of the above existing block formula motor, influence motor tooth slot torque and torque ripple problem, the utility model provides a block formula motor stator whole round assembling tool.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A block formula motor stator whole round assembling tool, including base, mould core and upper pressing plate, the mould core is cylindrical, and the top and bottom are provided with positioning boss;The middle of base top is provided with lower positioning groove, and the middle of upper pressing plate bottom is provided with upper positioning groove, for cooperating with positioning boss and positioning mould core;The stator assembly is spliced to the surface of mould core, and the top of base is provided with lower avoiding slot, and the bottom of upper pressing plate is provided with lower avoiding slot, for avoiding the coil in stator assembly;The top of upper pressing plate is provided with a plurality of avoiding holes, for avoiding coil;The outer machine cover is arranged between the upper pressing plate and the base, for cooperating with the mould core and pressing the stator assembly;The upper pressing plate is provided with a plurality of counterbores along the circumference, the outer machine cover is provided with a plurality of through holes along the circumference, and the base is provided with a plurality of screw holes along the circumference, for cooperating with bolt and fastening the upper pressing plate, outer machine cover and base.

[0006] Preferably, the outer periphery of the outer machine cover is evenly distributed with a plurality of hollow windows, which correspond to the splicing seams in the stator assembly.

[0007] Preferably, the top of the base is provided with a positioning step along the circumference, for positioning the outer machine cover.

[0008] Compared with the prior art, the utility model has the advantages that the utility model can ensure that the inner circle roundness tolerance after stator round assembling hot jacket is ensured in the allowable qualified range of product, improve the tolerance grade, and the operation is simple, convenient to disassemble. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 Assembled three-dimensional structure schematic view of the embodiment of the utility model;

[0010] Figure 2 Assembled three-dimensional structure schematic view of the embodiment of the utility model; Figure 1 Assembled three-dimensional structure schematic view of the embodiment of the utility model;

[0011] Figure 3 Assembled three-dimensional structure schematic view of the embodiment of the utility model; Figure 2 Assembled three-dimensional structure schematic view of the embodiment of the utility model;

[0012] Figure 4 Assembled three-dimensional structure schematic view of the embodiment of the utility model;

[0013] Figure 5 Assembled three-dimensional structure schematic view of the embodiment of the utility model;

[0014] Figure 6 Assembled three-dimensional structure schematic view of the embodiment of the utility model;

[0015] Figure 7 Assembled three-dimensional structure schematic view of the embodiment of the utility model;

[0016] In the figure: 1, base, 101, threaded hole, 102, lower avoiding groove, 103, positioning step, 104, lower positioning groove, 2, outer machine cover, 201, hollow window, 202, through hole, 3, upper pressing plate, 301, counterbore, 302, avoiding hole, 303, upper avoiding groove, 304, upper positioning groove, 4, stator assembly, 5, mold core, 501, positioning boss. DETAILED DESCRIPTION

[0017] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal" and the like is the orientation or position relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0019] As Figures 1-7As shown, the utility model embodiment includes base 1, mould core 5 and upper pressing plate 3, mould core 5 is cylindrical, and the top and bottom are all provided with positioning boss 501;Base 1 top middle is provided with lower positioning groove 104, and upper pressing plate 3 bottom middle is provided with upper positioning groove 304, is used for cooperating positioning boss 501 and is positioned to mould core 5;Stator assembly 4 is spliced to the surface of mould core 5, and the top of base 1 is provided with lower avoiding slot 102, and the bottom of upper pressing plate 3 is provided with lower avoiding slot 303, for avoiding the coil in stator assembly 4;Upper pressing plate 3 top is provided with several avoiding holes 302, for avoiding the coil;Upper pressing plate 3 and base 1 are provided with outer machine cover 2 between, for cooperating mould core 5 and pressing stator assembly 4 tightly;Upper pressing plate 3 is evenly distributed with several counterbores 301 along the circumference, outer machine cover 2 is evenly distributed with several through holes 202 along the circumference, and base 1 is evenly distributed with several screw holes 101 along the circumference, for cooperating bolt and fastening connection of upper pressing plate 3, outer machine cover 2 and base 1.

[0020] First according to the stator core length of stator assembly 4, the height of mould core 5 is determined, and according to the outer circle, inner circle size of stator assembly 4, the outer circle, inner circle size of mould core 5 and outer machine cover 2 is designed, and then according to the winding coil end size on stator assembly 4, the size of lower avoiding slot 102 and upper avoiding slot 303 is designed.

[0021] When the stator is spliced, first the bottom positioning boss 501 of mould core 5 is inserted into the lower positioning groove 104 on base 1, then the spliced interface of the block stator assembly is coated with insulating glue for overall circular assembly, and the coil winding is wound, the stator assembly 4 is sleeved into the mould core 5, and then the outer machine cover 2 is sleeved on the outer circumferential surface of the stator assembly 4, so that the outer circumferential surface of the mould core 5 and the inner circumferential surface of the outer machine cover 2 are matched, the tolerance during the stator splicing is ensured, and finally the upper pressing plate 3 is covered on the outer machine cover 2, and the bolts are screwed through the counterbores 301, the through holes 202 and the screw holes 101, and the whole tool is locked, and then the bolts are unscrewed after the insulating glue is solidified, and the upper pressing plate 3, the outer machine cover 2 and the mould core 5 are removed in turn, so that the block type motor stator with high tolerance level can be obtained.

[0022] As preferred, the outer circumferential surface of the outer machine cover is evenly distributed with several hollow windows along the circumference, which one-to-one correspond to the splicing seams in the stator assembly, so that the solidification of the insulating glue can be observed in real time;The top of the base is provided with a positioning step along the circumference, for positioning the outer machine cover, further ensuring the tolerance level during the stator splicing.

[0023] 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 these 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 modular motor stator integral assembly tooling, characterized in that: The device includes a base, a mold core, an upper pressure plate, and a stator assembly. The mold core is cylindrical and has positioning bosses at both the top and bottom. The base has a lower positioning groove in the middle of its top, and the upper pressure plate has an upper positioning groove in the middle of its bottom, used to position the mold core in conjunction with the positioning bosses. The stator assembly is spliced ​​against the surface of the mold core, and the base and the upper pressure plate have lower clearance grooves at their top and bottom to allow clearance for the coils in the stator assembly. The upper pressure plate has several clearance holes at its top to allow clearance for the coils. An outer sleeve is provided between the upper pressure plate and the base to fit and press the stator assembly against the mold core. The upper pressure plate has several countersunk holes evenly distributed along its circumference, the outer sleeve has several through holes evenly distributed along its circumference, and the base has several threaded holes evenly distributed along its circumference, used to fasten the upper pressure plate, outer sleeve, and base together with bolts.

2. The modular motor stator integral assembly tooling according to claim 1, characterized in that: The outer circumferential surface of the outer casing has several perforated windows evenly distributed along the circumference, each corresponding to a splicing seam in the stator assembly.

3. A modular motor stator integral assembly tooling according to claim 1 or 2, characterized in that: The base has a positioning step on its top along the circumference for positioning the outer unit sleeve.

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