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

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

Washing motor casing iron core stator installation foot symmetry detection tool and detection method

technical field

The invention belongs to the technical field of inspection tools, in particular, the invention relates to a detection tool and a detection method for the symmetry of the mounting feet of the iron core stator of the washing motor casing.

Background technique

The washing motor casing products are made of cast aluminum parts, which are then manufactured by precision machining, and the production cost is high and the manufacturing cycle is long. Moreover, the product occupies a large space, which affects the development of the compact design of the product. And cold stamping parts instead of cast aluminum and then machining parts has always been the trend of industry development.

For re-machining of aluminum castings, first of all, the aluminum castings are only blanks, all the precision is guaranteed by subsequent machining, and all the products produced have very high standards of consistency and precision. Now we use cold stamping parts to replace cast aluminum parts. What needs to be broken is that all high-precision dimensions must be realized on the stamping die, and the stamping die must be used to achieve machining accuracy and ensure good consistency and quality repeatability sex and reproducibility. Finally, after analyzing the metal forming process, product structure process and mechanical properties, it is decided to modify the molding process and structure of the mold, so that after the molding process and structure of the mold are modified, the product will flow and mechanically spring back on the metal material. It has been optimized and improved to ensure the bearing chamber diameter, roundness, iron core mounting foot width and symmetry dimensional accuracy of the product, so as to achieve the purpose of superior performance of the motor.

The most critical core component of the motor operation is the casing. The casing carries the reference fixing and operation guarantee of the entire motor. The core size is the bearing chamber and the inner diameter of the stop. The 8 bending feet of the washing motor casing are stuck to the iron core stator. It assumes the role of the inner diameter of the stop, so the width dimension and symmetry of the 8 bending feet are very high, and good dimensional stability and consistency are required.

However, in the production process, since the iron core stator is installed on the bending feet, the iron core is square, and the mounting feet for fixing the iron core are formed by bending, and the angle fluctuation and change of the bending feet will affect the washing motor. The overall performance requires 100% full inspection of the symmetry of the mounting feet, but the use of three-coordinate full inspection is impossible in the mass production process. It takes half an hour to measure a part, but the beat of stamping production is 20 pieces per minute. , which makes measurement a bottleneck process.

SUMMARY OF THE INVENTION

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a washing motor casing iron core stator installation foot symmetry detection tool, which aims to improve the detection efficiency.

In order to achieve the above purpose, the technical solution adopted in the present invention is: a washing motor casing iron core stator installation foot symmetry detection tool, including a base, a movable slider arranged on the base, a slider arranged on the slider and used for A detection block in contact with the mounting feet of the washing motor casing, a dial indicator matched with the detection block, a positioning plate disposed on the base and used for positioning the washing motor casing, and a positioning plate disposed on the base and used for washing The motor casing provides a floating support mechanism for elastic support.

The floating support mechanism includes a support rod, a bearing arranged on the support rod and used for contacting the washing motor casing, and an elastic element for providing elastic force to the support rod, and the bearing is located above the positioning plate.

The support rod passes through the positioning plate, and the positioning plate is arranged to guide the support rod.

The base includes a backing plate, a large template arranged on the backing plate and a fixed block arranged on the large template, the slider is movably arranged on the large template, and the dial indicator is arranged on the fixed block, The positioning plate is arranged on the large template.

There are a plurality of the sliders, all the sliders are distributed around the outer side of the positioning plate, and each slider is respectively provided with one of the detection blocks, and the number of the dial indicators is the same as the number of the detection blocks.

The invention also provides a method for detecting the symmetry of the iron core stator mounting feet of the washing motor casing, using the said washing motor casing iron core stator installation foot symmetry detection tool, and comprising the steps:

S1, the washing motor casing to be detected is positioned by the said washing motor casing iron core stator installation foot symmetry detection tool:

S2. Detect and judge the symmetry of the mounting feet of the washing motor casing.

The detection tool for the symmetry of the iron core stator mounting feet of the washing motor casing of the invention can greatly improve the detection efficiency, so that the 100% detection speed can match the rhythm of stamping production, and the requirements of 100 inspections are realized.

Description of drawings

This manual includes the following drawings, which are as follows:

Fig. 1 is the schematic diagram of the state in which the detection tool for the symmetry of the iron core stator of the washing motor casing of the present invention has not started to be detected;

2 is a schematic diagram of the use state of the tool for detecting the symmetry of the iron core stator of the washing motor casing according to the present invention;

Fig. 3 is the top view of the use state of the tool for detecting the symmetry of the iron core stator of the washing motor casing according to the present invention;

Marked as: 001, support rod; 002, bearing; 003, washing motor casing; 004, detection block; 005, fixed block; 006, dial indicator; 007, screw; 008, slider; 009, large template 010, backing plate; 011, elastic element; 012, pin; 013, positioning plate.

Detailed ways

Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention will be described in further detail, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.

As shown in FIG. 1 to FIG. 3 , the present invention provides a washing motor casing iron core stator installation foot symmetry detection tool, which includes a base, a movable slider 008 arranged on the base, and a slider 008 arranged on the slider 008. And the detection block 004 used for contacting the mounting feet of the washing motor casing, the dial indicator 006 matched with the detection block 004, the positioning plate 013 arranged on the base and used for positioning the washing motor casing and the setting A floating support mechanism on the base and used to provide elastic support to the washing motor casing.

Specifically, as shown in Figures 1 to 3, the base is fixed, the positioning plate 013 is fixed on the top surface of the base, the shape of the positioning plate 013 matches the shape of the washing motor casing, and the movement of the slider 008 The direction is horizontal, there are multiple sliders 008, all the sliders 008 are distributed around the outer side of the positioning plate 013, each slider 008 is respectively provided with a detection block 004, and the detection block 004 is fixedly arranged on the top surface of the slider 008 , the dial indicator 006 is set on the base, the number of the dial indicator 006 is the same as the number of the detection blocks 004, each dial indicator 006 is matched with a detection block 004, and the detection block 004 is located in the dial indicator 006 and the positioning plate 013 between.

As shown in FIG. 1 to FIG. 3 , the floating support mechanism includes a support rod 001 , a bearing 002 disposed on the support rod 001 and used for contacting the washing motor casing, and an elastic element for providing elastic force to the support rod 001 011, the bearing 002 is located above the positioning plate 013. The support rod 001 is vertically arranged, the support rod 001 passes upward through the positioning plate 013, the positioning plate 013 is arranged to guide the support rod 001, and the center of the positioning plate 013 is provided with a guide hole for the support rod 001 to pass through. The bearing 002 is arranged on the upper end of the support rod 001, the bearing 002 is a high-precision precision bearing, the bearing 002 is used to carry the washing motor casing, the bearing 002 can be inserted into the inner cavity of the washing motor casing, and the inner cavity of the washing motor casing is approximately the same as the outer diameter of bearing 002. The elastic element 011 is disposed at the lower end of the support rod 001, the elastic element 011 is used to exert an upward elastic force on the support rod 001, and the elastic element 011 is a compression spring.

As shown in FIG. 1 to FIG. 3 , the base includes a backing plate 010 , a large template 009 arranged on the backing plate 010 and a fixed block 005 arranged on the large template 009 , and the slider 008 is movably arranged on the large template 009 , the dial indicator 006 is set on the fixed block 005, and the positioning plate 013 is set on the large template 009. The large template 009 is fixed on the backing plate 010, the fixed block 005 and the positioning plate 013 are fixed on the top surface of the large template 009, the dial indicator 006 is fastened on the fixed block 005 by the screw 007, and the fastening by the screw 007 , the dial indicator 006 will not move any position, and the contact pin of the dial indicator 006 is in contact with the detection block 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, and the length direction of the guide groove is the horizontal direction. The shape of the slider 008 matches the shape of the guide groove. The 008 can only move back and forth relative to the positioning plate 013, and there will be no up and down and left and right movements. The support rod 001 passes through the large template 009 and the positioning plate 013 in sequence, and the lower end of the elastic element 011 is fixedly connected to the large template 009 through the pin 012 to prevent the elastic element 011 from sliding sideways when compressed.

As shown in Figures 1 to 3, there are eight detection blocks 004 in total, and correspondingly, eight sliders 008 and dial indicators 006 are also provided, the washing motor casing is a square structure, and there are eight installations on the washing motor casing feet, and every two mounting feet are respectively located at one outer edge of the washing motor casing. The positioning plate 013 is also a square structure, the positioning plate 013 has four sides, and two detection blocks 004, two sliders 008 and two dial indicators 006 are arranged on the outer sides of each side of the positioning plate 013, and the sliding The moving direction of the block 008 is perpendicular to the length direction of the corresponding side of the positioning plate 013, that is, the eight detection blocks 004 are distributed in a square shape, and each detection block 004 is used to detect a mounting foot on the washing motor casing.

As shown in FIG. 1, when the measurement is not started, the elastic element 011 pushes up the support rod 001, and the bearing 002 is at the top dead center position. And before use, it is necessary to use the standard calibration block, push the detection block 004 backward (that is, move towards a position away from the positioning plate 013), contact the dial indicator 006, and the eight detection blocks 004 are corrected by the standard calibration block. , push the dial indicator 006 back, so that the dial indicator 006 is in the zero position, adjust the dial of the dial indicator 006, and return to the zero position.

As shown in Figure 2 and Figure 3, when placing the washing motor casing, 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, Therefore, the axial reference A of the washing motor casing is determined. At this time, the washing motor casing still has only one constraint, and the washing motor casing can be rotated axially (the rotation center line of the washing motor casing at this time is also the support rod 001). The axis of the washing motor is a vertical line, and the washing motor casing is in a coaxial state with the bearing 002 and the support rod 001); then manually press down the washing motor casing, the elastic element 011 is compressed, and the support rod 001 is accurately positioned on the positioning plate 013. The guide goes down effectively, the washing motor casing runs downward at the same time, and finally the mounting feet on the washing motor casing effectively contact the positioning plate 013, and the mounting feet arranged on the four outer edges of the washing motor casing are respectively connected with the positioning plate 013. The four sides are in contact with each other, and the eight mounting feet are distributed around the outer side of the positioning plate 013, so that the washing motor casing can obtain absolute constraints. Under the control of the downward force, the washing motor casing will no longer appear X, Y. , any movement in the Z direction to achieve effective positioning.

During the downward process of the washing motor casing, each installation foot contacts a detection block 004. Under the reverse force of the installation foot, the detection block 004 drives the slider 008 to move linearly toward the position away from the positioning plate 013. Detect block 004 and push the contact pin of dial indicator 006 to retreat to realize data reading. After the washing motor casing descends into place, the mounting feet effectively contact the positioning plate 013, so that the washing motor casing obtains absolute constraints, and finally confirm the eight mounting feet of the washing motor casing by reading the data of the eight dial indicators 006 Whether the symmetry is qualified.

The present invention also provides a method for detecting the symmetry of the mounting feet of the iron core stator of the washing motor casing, using the above-mentioned structure for detecting the symmetry of the mounting feet of the iron core stator of the washing motor casing, and comprising the following steps:

S1. The washing motor casing to be detected is positioned by the symmetry detection tool of the iron core stator installation foot of the washing motor casing:

S2. Detect and judge the symmetry of the mounting feet of the washing motor casing.

In the above step S1, as shown in FIG. 2 and FIG. 3, when placing the washing motor casing, 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 is used for washing The motor casing is positioned 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 can be rotated axially (the rotation center of the washing motor casing at this time). The line is also the axis of the support rod 001, which is a vertical line); then manually press down on the washing motor casing, the elastic element 011 is compressed, and the supporting rod 001 effectively descends under the precise guidance of the positioning plate 013, washing the motor casing At the same time running downward, 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 in contact with the four sides of the positioning plate 013 respectively, and the eight The mounting feet are distributed around the outer side of the positioning plate 013, so that the washing motor casing can obtain absolute constraints. Under the control of the downward force, the washing motor casing will no longer move in the X, Y, and Z directions, achieving effective positioning.

In the above-mentioned step S2, after the washing motor casing descends in place, the washing motor casing obtains an absolute constraint, and the washing motor casing can no longer move. Whether the symmetry of the eight mounting feet is qualified.

The above structure of the washing motor casing iron core stator installation foot symmetry detection tool has the following advantages:

1: The inspection efficiency is greatly improved, so that the 100% inspection speed can match the rhythm of stamping production, and the requirements of 100 inspections are achieved;

2: The measurement workload of the CMM is released, which greatly improves the measurement efficiency and reduces the measurement cost, making the measurement more efficient and convenient;

3: The hundreds of inspection procedures can be transferred to the site, which can realize the combination of inspection and self-inspection procedures, improve the work efficiency and shorten the operation flow distance of the process, so as to achieve the goal of increasing efficiency and reducing costs;

4: The rapid detection immediately corresponds to the improvement, which effectively solves the problem of waiting for the three-coordinate measurement data, reduces the mold being in a cold mold production state due to waiting, reduces the problem of too many products to be confirmed at startup, and reduces the production cost of scrapped production and measurement confirmation. quality cost;

5: The measurement is carried out by simulating the assembly form of the machine, which effectively realizes the combination of theory and practice, which greatly reduces the defective products and anomalies in the machine assembly and motor operation experiment, improves the product quality, and the accuracy of the symmetry is very high.

The present invention has been exemplarily described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above manner. As long as the method concept and technical solution of the present invention are adopted for various non-substantial improvements; or the above-mentioned concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention. within.

Claims (6)

1. The detection tool for the symmetry of the iron core stator mounting feet of the washing motor casing is characterized in that it includes a base, a movable slider set on the base, and a mounting foot set on the slider and used for the washing motor casing. A detection block in contact, a dial indicator matched with the detection block, a positioning plate arranged on the base and used for positioning the washing motor casing, and a positioning plate arranged on the base and used for providing elastic support for the washing motor casing floating support mechanism. 2. The washing motor casing iron core stator installation foot symmetry detection tool according to claim 1, wherein the floating support mechanism comprises a supporting rod, which is arranged on the supporting rod and is used to be in phase with the washing motor casing. The bearing in contact and the elastic element for providing elastic force to the support rod, the bearing is located above the positioning plate. 3. The washing motor casing iron core stator installation foot symmetry detection tool according to claim 2, wherein the support rod passes through the positioning plate, and the positioning plate is arranged to guide the support rod. 4. The washing motor casing iron core stator installation foot symmetry detection tool according to any one of claims 1 to 3, wherein the base comprises a backing plate, a large template arranged on the backing plate, and a large template provided on the backing plate. The fixed block on the template, the slider 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 washing motor casing iron core stator installation foot symmetry detection tool according to any one of claims 1 to 3, wherein a plurality of the sliders are provided, and all the sliders are distributed on the outer side of the positioning plate Around each of the sliders, one of the detection blocks is respectively set, and the number of the dial indicators is the same as the number of the detection blocks. 6. The method for detecting the symmetry of the mounting feet of the iron core stator of the washing motor casing, characterized in that the detection tool for the symmetry degree of the mounting feet of the iron core stator of the washing motor casing described in any one of claims 1 to 5 is adopted, and the method comprises the steps: S1, the washing motor casing to be detected is positioned by the said washing motor casing iron core stator installation foot symmetry detection tool: S2. Detect and judge the symmetry of the mounting feet of the washing motor casing.

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