CN114370808A

CN114370808A - Symmetry degree detection tool and detection method for stator mounting pin of shell iron core of washing motor

Info

Publication number: CN114370808A
Application number: CN202210028114.1A
Authority: CN
Inventors: 黄�俊
Original assignee: Wuhu Hongdi Electromechanical Co ltd
Current assignee: Wuhu Hongdi Electromechanical Co ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-04-19

Abstract

The invention discloses a symmetry degree detection tool for an iron core and stator mounting pin of a washing motor shell, which comprises a base, a movable sliding block arranged on the base, a detection block arranged on the sliding block and used for contacting with the mounting pin of the washing motor shell, a dial indicator matched with the detection block, a positioning plate arranged on the base and used for positioning the washing motor shell, and a floating support mechanism arranged on the base and used for providing elastic support force for the washing motor shell. The symmetry degree detection tool for the stator mounting pin of the iron core of the washing motor shell can greatly improve the detection efficiency, enables the detection speed to be completely matched with the stamping production rhythm, and meets the requirement of complete detection. The invention also discloses a method for detecting the symmetry degree of the stator mounting pin of the iron core of the washing motor shell.

Description

Symmetry degree detection tool and detection method for stator mounting pin of shell iron core of washing motor

Technical Field

The invention belongs to the technical field of detection tools, and particularly relates to a tool and a method for detecting the symmetry degree of an iron core stator mounting pin of a washing motor shell.

Background

The washing motor shell product is manufactured by using an aluminum casting and then precisely machining, so that the production cost is high, and the manufacturing period is long. And the occupied space of the product is large, which influences the development of compact design of the product. And it is also a trend of industry development to replace cast aluminum by cold-stamped parts and then machine the parts.

And (3) machining the aluminum casting, wherein the aluminum casting is only a blank, all the precision is ensured by subsequent machining, and all the produced products have the standard of very high consistency and precision. At present, cold stamping parts are used for replacing aluminum castings, and what needs to be broken through is that all high-precision sizes are realized on a stamping die, and the stamping die is used for achieving machining precision and ensuring good consistency, repeatability of quality and reproducibility. Finally, after metal forming process analysis, product structure process analysis and mechanical property analysis, modification of the forming process and the structure of the die is determined, so that after the forming process and the structure of the die are modified, the product is optimized and improved on the flowing and mechanical resilience of the metal material, and the inner diameter and the roundness of the bearing chamber of the product and the width and the dimensional accuracy of the symmetry degree of the iron core mounting leg are ensured, so that the purpose of excellent performance of the whole motor is achieved.

The most critical core component of motor operation is the casing, and the casing has born the fixed and operation assurance of the benchmark of whole motor, and the size of core is exactly bearing chamber and tang internal diameter, and 8 pins of bending of washing motor casing block the iron core stator, have undertaken the effect of tang internal diameter, so the width dimension and the symmetry of 8 pins of bending require very high, and require good dimensional stability and uniformity.

However, in the production process, the iron core stator is arranged on the bending pins, the iron core is square, the mounting pins for fixing the iron core are formed by bending, the overall performance of the washing motor can be influenced by the angle fluctuation and the change of the bending pins, so that the symmetry degree of the mounting pins is required to be completely checked, the three-coordinate complete check cannot be realized in the batch production process, the time for measuring one part needs half an hour, but the beat of stamping production is 20 pieces per minute, and the measurement becomes a bottleneck process.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a symmetry degree detection tool for an iron core and stator mounting pin of a washing motor shell, and aims to improve the detection efficiency.

In order to achieve the purpose, the invention adopts the technical scheme that: the symmetry degree detection tool for the iron core and stator mounting feet of the washing motor shell comprises a base, a movable sliding block arranged on the base, a detection block arranged on the sliding block and used for being in contact with the mounting feet of the washing motor shell, a dial indicator matched with the detection block, a positioning plate arranged on the base and used for positioning the washing motor shell and a floating support mechanism arranged on the base and used for providing elastic support force for the washing motor shell.

The floating support mechanism comprises a support rod, a bearing arranged on the support rod and used for contacting with the washing motor shell, and an elastic element used for providing elastic acting force for the support rod, wherein the bearing is positioned above the positioning plate.

The supporting rod penetrates through the positioning plate, and the positioning plate is used for guiding the supporting rod.

The base comprises a base plate, a large template and a fixed block, the large template is arranged on the base plate, the fixed block is arranged on the large template, the sliding block is movably arranged on the large template, the dial indicator is arranged on the fixed block, and the positioning plate is arranged on the large template.

The slide blocks are arranged in a plurality, all the slide blocks are distributed on the periphery of the outer side of the positioning plate, the detection blocks are arranged on the slide blocks respectively, and the number of the dial indicators is the same as that of the detection blocks.

The invention also provides a method for detecting the symmetry degree of the stator mounting pin of the iron core of the washing motor shell, which adopts the tool for detecting the symmetry degree of the stator mounting pin of the iron core of the washing motor shell and comprises the following steps:

s1, positioning the washing motor casing to be detected by the symmetry detection tool for the iron core and stator mounting feet of the washing motor casing:

and S2, detecting and judging the symmetry degree of the mounting feet of the washing motor shell.

The symmetry degree detection tool for the stator mounting pin of the iron core of the washing motor shell can greatly improve the detection efficiency, enables the detection speed to be completely matched with the stamping production rhythm, and meets the requirement of complete detection.

Drawings

The description includes the following figures, the contents shown are respectively:

FIG. 1 is a schematic diagram of a state that a detection tool for detecting the symmetry of a stator mounting pin of a housing core of a washing motor does not start detecting according to the present invention;

FIG. 2 is a schematic view of the symmetry degree of the stator mounting pin of the housing core of the washing motor according to the present invention;

FIG. 3 is a top view of the symmetry degree inspection tool for the stator mounting feet of the iron core of the washing motor casing;

labeled as: 001. a support bar; 002. a bearing; 003. washing the motor shell; 004. a detection block; 005. a fixed block; 006. a dial indicator; 007. a screw; 008. a slider; 009. a large template; 010. a base plate; 011. an elastic element; 012. a pin; 013. and (7) positioning the plate.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.

As shown in fig. 1 to 3, the invention provides a symmetry degree detection tool for a stator mounting pin of an iron core of a washing motor casing, which comprises a base, a movable sliding block 008 arranged on the base, a detection block 004 arranged on the sliding block 008 and used for contacting with the mounting pin of the washing motor casing, a dial indicator 006 matched with the detection block 004, a positioning plate 013 arranged on the base and used for positioning the washing motor casing, and a floating support mechanism arranged on the base and used for providing elastic support force for the washing motor casing.

Specifically, as shown in fig. 1 to 3, the base is fixedly disposed, the positioning plate 013 is fixedly disposed on the top surface of the base, the shape of the positioning plate 013 matches with the shape of the casing of the washing motor, the moving direction of the sliding blocks 008 is horizontal, the sliding blocks 008 are disposed in a plurality, all the sliding blocks 008 are distributed around the outer side of the positioning plate 013, each sliding block 008 is provided with a detection block 004, the detection blocks 004 are fixedly disposed on the top surface of the sliding blocks 008, the dial indicators 006 are disposed on the base, the number of the dial indicators 006 is the same as that of the detection blocks 004, each dial indicator 006 is respectively matched with one detection block 004, and the detection blocks 004 are disposed between the dial indicators 006 and the positioning plate 013.

As shown in fig. 1 to 3, the floating support mechanism includes a support rod 001, a bearing 002 disposed on the support rod 001 and used for contacting with the washing motor casing, and an elastic element 011 for providing an elastic force to the support rod 001, wherein the bearing 002 is located above the positioning plate 013. The bracing piece 001 is vertical setting, and the bracing piece 001 upwards passes the locating plate 013, and the locating plate 013 sets to be used for leading the bracing piece 001, and the center department of locating plate 013 sets up the guiding hole that lets the bracing piece 001 pass. Bearing 002 sets up in the upper end of bracing piece 001, and bearing 002 is the high accuracy precision bearing, and bearing 002 is used for bearing washing motor casing, and bearing 002 can insert the interior cavity of washing motor casing, and the diameter of the interior cavity of washing motor casing is roughly the same with the external diameter of bearing 002. The elastic element 011 is arranged at the lower end of the supporting rod 001, the elastic element 011 is used for exerting upward elastic acting force on the supporting rod 001, and the elastic element 011 is a compression spring.

As shown in fig. 1 to 3, the base includes a backing plate 010, a large die plate 009 disposed on the backing plate 010, and a fixing block 005 disposed on the large die plate 009, the slider 008 is movably disposed on the large die plate 009, the dial indicator 006 is disposed on the fixing block 005, and the positioning plate 013 is disposed on the large die plate 009. Big template 009 is fixed to be set up on backing plate 010, and fixed block 005 and locating plate 013 are fixed to be set up on the top surface of big template 009, and percentage table 006 passes through the fastening of screw 007 on fixed block 005, and through the fastening of screw 007, any position removal can not appear in percentage table 006, and the contact pin of percentage table 006 contacts with detecting piece 004. The top surface of the large template 009 is provided with a guide groove for guiding the slider 008, the guide groove is a dovetail groove, the length direction of the guide groove is in the horizontal direction, the shape of the slider 008 is matched with that of the guide groove, the slider 008 can only move back and forth relative to the positioning plate 013, and the up-down and left-right movement can not occur. The bracing piece 001 passes big template 009 and locating plate 013 in proper order, and the lower extreme of elastic element 011 passes through pin 012 and big template 009 fixed connection, avoids elastic element 011 to appear sideslipping when compressing.

As shown in fig. 1 to 3, the detecting block 004 is eight in total, correspondingly, the sliding block 008 and the dial indicator 006 are also eight in total, the washing motor casing is of a square structure, eight mounting feet are arranged on the washing motor casing, and every two mounting feet are respectively arranged at one outer edge of the washing motor casing. The locating plate 013 is also square structure, and the locating plate 013 has four sides, and two detection piece 004, two sliders 008 and two dial indicators 006 are all arranged in the outside of each side of the locating plate 013, and the moving direction of this slider 008 is perpendicular to the length direction of the corresponding side of the locating plate 013, also eight detection pieces 004 are square distribution, and each detection piece 004 is used for detecting an installation foot on the washing motor casing respectively.

As shown in fig. 1, when the measurement is not started, the elastic member 011 pushes up the support rod 001 and the bearing 002 is located at the top dead center position. Before the dial indicator is used, the standard calibration block needs to be used, the detection block 004 is pushed to move backwards (namely, towards the position far away from the positioning plate 013), the dial indicator 006 is contacted, the eight detection blocks 004 push the dial indicator 006 to move backwards under the correction of the standard calibration block, so that the dial indicator 006 is in a zero position, and the dial indicator of the dial indicator 006 is adjusted to return to the zero position.

As shown in fig. 2 and 3, when the washing motor casing is placed, the washing motor casing is placed on the bearing 002, the bearing 002 is embedded into the inner cavity of the washing motor casing, and the bearing 002 positions the washing motor casing, so that the axial reference a of the washing motor casing is determined, at this time, the washing motor casing is still only restricted, and the washing motor casing can axially rotate (at this time, the rotation center line of the washing motor casing, that is, the axis of the supporting rod 001, is a vertical line, and the washing motor casing, the bearing 002 and the supporting rod 001 are in a coaxial state); then manually press the washing motor casing downwards, the elastic element 011 is compressed, the support rod 001 descends effectively under the accurate guidance of the positioning plate 013, the washing motor casing moves downwards simultaneously, finally the mounting feet on the washing motor casing effectively contact the positioning plate 013, the mounting feet arranged on the four outer edges of the washing motor casing are respectively contacted with the four side edges of the positioning plate 013, the eight mounting feet are distributed around the outer side of the positioning plate 013, so that the washing motor casing obtains absolute restraint, under the control of downward acting force, any movement in the direction of X, Y, Z can not occur on the washing motor casing any more, and effective positioning is realized.

In the downlink process of the washing motor shell, each mounting pin contacts one detection block 004, the detection blocks 004 drive the sliding block 008 to move linearly towards the position far away from the positioning plate 013 under the reverse acting force of the mounting pins, and the detection blocks 004 push the contact pins of the dial indicator 006 to retreat to read data. After the washing motor casing is descended to the right place, the mounting feet effectively contact the positioning plate 013, so that the washing motor casing obtains absolute constraint, and finally, whether the symmetry of the eight mounting feet of the washing motor casing is qualified or not is confirmed by reading the data of the eight dial indicators 006.

The invention also provides a method for detecting the symmetry degree of the stator mounting pin of the shell iron core of the washing motor, the tool for detecting the symmetry degree of the stator mounting pin of the shell iron core of the washing motor with the structure comprises the following steps:

In the above step S1, as shown in fig. 2 and fig. 3, when the washing motor casing is placed, the washing motor casing is placed on the bearing 002, the bearing 002 is embedded in the inner cavity of the washing motor casing, and the bearing 002 positions the washing motor casing, so as to determine the axial reference a of the washing motor casing, at this time, the washing motor casing still has only one constraint, and the washing motor casing is axially rotatable (at this time, the rotation center line of the washing motor casing, that is, the axis of the supporting rod 001, is a vertical line); then manually press the washing motor casing downwards, the elastic element 011 is compressed, the support rod 001 descends effectively under the accurate guidance of the positioning plate 013, the washing motor casing moves downwards simultaneously, finally the mounting feet on the washing motor casing effectively contact the positioning plate 013, the mounting feet arranged on the four outer edges of the washing motor casing are respectively contacted with the four side edges of the positioning plate 013, the eight mounting feet are distributed around the outer side of the positioning plate 013, so that the washing motor casing obtains absolute restraint, under the control of downward acting force, any movement in the direction of X, Y, Z can not occur on the washing motor casing any more, and effective positioning is realized.

In step S2, after the washing motor casing descends to the right position, the washing motor casing obtains absolute constraint, the washing motor casing can no longer move, and finally, the data of the eight dial indicators 006 are read to determine whether the symmetry of the eight mounting pins of the washing motor casing is qualified.

The washing motor casing iron core stator installation foot symmetry of above-mentioned structure detects frock, has following advantage:

1: the detection efficiency is greatly improved, so that the detection speed can be completely matched with the stamping production rhythm, and the requirement of complete detection is met;

2: the measuring workload of the three-coordinate measuring instrument is released, the measuring efficiency is greatly improved, the measuring cost is reduced, and the measurement is more efficient and convenient;

3: the hundred-inspection process can be transferred to the field, the merging of the inspection process and the self-inspection process can be realized, the working efficiency is improved, the working flow distance of the process is shortened, and the purposes of increasing efficiency and reducing cost are achieved;

4: the rapid detection is improved immediately correspondingly, the problem that the machine is stopped to wait for three-coordinate measurement data is effectively solved, the problems that the mold is in a cold mold production state due to waiting and a large number of products are confirmed when the machine is started are reduced, and the scrapped production cost and the quality cost of measurement confirmation are reduced;

5: the simulation client assembly form is used for measurement, the mutual combination of theory and practice is effectively realized, the defective products and abnormity of client assembly and motor operation experiments are greatly reduced, the product quality is improved, and the precision of the symmetry is very high.

The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.

Claims

1. The symmetry degree detection tool for the iron core and stator mounting feet of the washing motor shell is characterized by comprising a base, a movable sliding block arranged on the base, a detection block arranged on the sliding block and used for being in contact with the mounting feet of the washing motor shell, a dial indicator matched with the detection block, a positioning plate arranged on the base and used for positioning the washing motor shell, and a floating support mechanism arranged on the base and used for providing elastic support force for the washing motor shell.

2. The tool for detecting the symmetry of the stator mounting pin of the iron core of the washing motor shell according to claim 1, wherein the floating support mechanism comprises a support rod, a bearing arranged on the support rod and used for contacting with the washing motor shell, and an elastic element used for providing elastic acting force for the support rod, and the bearing is positioned above the positioning plate.

3. The washing motor case core stator mounting pin symmetry detection tool of claim 2, wherein the support rod passes through the positioning plate, and the positioning plate is configured to guide the support rod.

4. The tool for detecting the symmetry of the stator mounting pin of the iron core of the washing motor shell according to any one of claims 1 to 3, wherein the base comprises a base plate, a large template arranged on the base plate and a fixed block arranged on the large template, the sliding block is movably arranged on the large template, the dial indicator is arranged on the fixed block, and the positioning plate is arranged on the large template.

5. The tool for detecting the symmetry of the stator mounting pin of the iron core of the washing motor shell according to any one of claims 1 to 3, wherein a plurality of sliding blocks are arranged, all the sliding blocks are distributed on the periphery of the outer side of the positioning plate, one detecting block is arranged on each sliding block, and the number of the dial indicators is the same as the number of the detecting blocks.

6. The method for detecting the symmetry degree of the stator mounting pin of the shell iron core of the washing motor is characterized in that the tool for detecting the symmetry degree of the stator mounting pin of the shell iron core of the washing motor in any one of claims 1 to 5 is adopted, and the method comprises the following steps: