Motor assembly three-phase needle position degree testing fixture

Abstract

The utility model discloses a motor assembly three-phase needle position degree testing fixture, which comprises a base, and further comprises a detection support plate arranged at the top of the base; the detection mechanism is installed at the top of the base and located on the rear side of the detection supporting plate; the pressing clamp A is installed at the top of the base and located on the left side of the detection supporting plate; and the pressing clamp B is mounted at the top of the base and is located on the right side of the detection supporting plate. According to the utility model, through the arrangement of the detection support plate, the detection mechanism, the pressing clamp A and the pressing clamp B, rapid and accurate detection of the position degree of the three-phase needle of the motor assembly is realized, and errors possibly caused by manual positioning are reduced; and a standard reference system is constructed by the reference keys and the positioning pins on the base, so that the accuracy and the reliability of detection are improved, the positioning error of a product is less than or equal to 0.05 mm, the repeated positioning precision of a coordinate system of the detection tool is less than or equal to 0.03 mm, and the high-precision detection requirement is met.

Description

Technical Field

[0001] This utility model belongs to the technical field of motor testing tools. Specifically, this utility model relates to a three-phase needle position gauge for a motor assembly. Background Technology

[0002] An automotive motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. To improve the service life of automotive motors, a housing is installed on the outside of the motor. In order to ensure successful assembly of the housing, a tool is used to inspect the mounting holes and slots of the automotive motor housing.

[0003] Existing automotive motor housing inspection tools lack a standardized benchmark system during inspection, and product positioning relies on manual alignment, which can easily lead to deviations in inspection results due to operational errors. Utility Model Content

[0004] This utility model provides a three-phase needle position gauge for a motor assembly, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a three-phase needle position gauge for a motor assembly, including a base, and further comprising:

[0006] A detection support plate is installed on top of the base;

[0007] The testing mechanism is installed on the top of the base and located behind the testing support plate;

[0008] Clamp A is mounted on the top of the base and located on the left side of the detection support plate;

[0009] Clamp B is mounted on the top of the base and is located on the right side of the detection support plate.

[0010] Preferably, the detection mechanism includes a support frame fixedly mounted on the base by bolts, a support plate fixedly mounted on the front side of the support frame, linear slide rails mounted on both sides of the front end of the support plate, a slider slidably connected to the two sets of slide rails, and a handle mounted on one side of the support plate.

[0011] Preferably, the front end of the slider is respectively provided with spring detection pin J1, spring detection pin J2 and spring detection pin J3.

[0012] Preferably, positioning pins B and C are respectively inserted on both sides of the top of the detection support plate.

[0013] Preferably, reference key I, reference key II and reference key III are respectively installed at the corners of the base, and handles are installed on both sides of the base in a staggered manner.

[0014] The beneficial effects of adopting the above technical solutions are:

[0015] I. By setting up a detection support plate, a detection mechanism, clamps A and clamps B, the position of the three-phase needles of the motor assembly is quickly and accurately detected.

[0016] Second, the testing mechanism achieves stepless sliding adjustment through linear slide rails and handles, allowing for quick switching of testing positions without tools. Compared with traditional fixed structures, the testing preparation time is reduced by more than 50%.

[0017] 3. Spring detection pins J1, J2, and J3 are integrated at the front end of the slider. A single press can complete the synchronous detection of the position of the three-phase needles, improving the detection efficiency by more than 3 times compared to the traditional hole-by-hole detection. In addition, the spring detection pins have built-in compression springs, which adhere to the inner wall of the three-phase needle holes through the spring force, achieving non-contact rapid detection.

[0018] Fourth, the reference key and positioning pin on the base establish a standardized reference system, which improves the accuracy and reliability of the inspection and ensures that the product positioning error is ≤0.05mm and the repeatability of the fixture coordinate system is ≤0.03mm, meeting the requirements of high-precision inspection. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram provided by this utility model;

[0020] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0021] Figure 3 This is a three-dimensional structural diagram of the testing organization;

[0022] in:

[0023] 1. Base; 2. Testing support plate; 3. Testing mechanism; 31. Support frame; 32. Support plate; 33. Linear slide rail; 34. Slider; 35. Handle; 4. Clamp A; 5. Clamp B. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of this utility model, and to facilitate its implementation.

[0025] Specifically, such as Figures 1 to 3As shown, a three-phase needle position gauge for a motor assembly includes a base 1, and further includes: a detection support plate 2, which is mounted on the top of the base 1; a detection mechanism 3, which is mounted on the top of the base 1 and located behind the detection support plate 2; a clamp A4, which is mounted on the top of the base 1 and located to the left of the detection support plate 2; and a clamp B5, which is mounted on the top of the base 1 and located to the right of the detection support plate 2.

[0026] It should be noted that the testing support plate 2 uses plane A as the reference surface for the product on the fixture, controls the Y direction, aligns the product with plane A and places it on the fixture, relies on the reference surface on the fixture for support, and achieves product positioning. The clamping clamps A4 and B5 are clamped in sequence to achieve positioning, and then the product is tested by the testing mechanism 3.

[0027] The detection mechanism 3 includes a support frame 31 fixedly installed on the base 1 by bolts, a support plate 32 fixedly installed on the front side of the support frame 31, linear slide rails 33 installed on both sides of the front end of the support plate 32, a slider 34 slidably connected to the two sets of slide rails 33, and a handle 35 installed on one side of the support plate 32.

[0028] It should be noted that the slider 34 slides linearly along the support plate 32 via the linear slide rail 33, and the sliding stroke covers the detection range of the three-phase needle of the motor; the handle 35 adopts an ergonomic design, which is convenient for one-handed operation and realizes the rapid pressing and positioning of the detection pin.

[0029] The front end of the slider 34 is respectively provided with spring detection pins J1, J2, and J3.

[0030] It should be noted that during the test, first use the handle 35 to press down along the linear slide rail 33 to the test position, and then insert the test pins J1, J2 and J3 smoothly in sequence. If they can be inserted smoothly, it is considered qualified; otherwise, it is unqualified.

[0031] In addition, the spring detection pins J1, J2, and J3 all have built-in compression springs. During the test, the spring force adheres to the inner wall of the three-phase pinhole. If the detection pin can be inserted into the preset depth without resistance, the position is determined to be qualified; otherwise, it is unqualified, thus realizing non-contact rapid detection.

[0032] Furthermore, the spring detection pins J1, J2, and J3 include a pin body, a compression spring, and a limiting cap. One end of the compression spring abuts against the tail of the pin body, and the other end is fixed inside the slider 34. The limiting cap restricts the maximum insertion depth of the pin body.

[0033] Positioning pins B and C are respectively inserted on both sides of the top of the detection support plate 2.

[0034] It should be noted that positioning pins B and C are used as positioning pins on the fixture to control the XZ direction. Before testing, align the product with positioning pins B and C and plane A and place it on the fixture. Relying on the reference surface on the fixture for support, the product is positioned. Clamp clamps A4 and B5 are tightened in sequence to achieve positioning. After positioning, testing can begin. If reference pins B and C can be inserted simultaneously during placement, it is considered qualified and the next step of testing can be carried out. If they cannot be inserted, it is considered unqualified.

[0035] Reference key I, reference key II and reference key III are respectively installed at the corners of the base 1, and handles 6 are installed on both sides of the base 1 in a staggered manner.

[0036] It should be noted that the method for establishing the coordinate system of the inspection fixture is as follows: the construction surfaces of datum key I, datum key II and datum key III, the construction lines of datum key I and datum key II, and datum key I as the origin of the coordinate system are established by rotation and positioning.

[0037] In addition, clamps A4 and B5 adopt a quick clamping structure, which can clamp the product with one hand. The clamping force is evenly distributed on both sides of the inspection support plate. The handles 6 on both sides of the base 1 adopt an aluminum anti-slip design, which facilitates the handling and position adjustment of the inspection tool.

[0038] The specific working method is described below using specific embodiments: Example 1

[0039] First, align the bottom surface of the motor assembly with plane A of the testing support plate 2, and insert the positioning pins B and C into the product positioning holes. Confirm that the reference pins B and C are fully inserted; otherwise, the product positioning hole position is deemed unqualified. Then, operate the clamps A4 and B5 in sequence to firmly fix the product to the testing support plate through the clamp lever mechanism, ensuring no displacement during the testing process. Next, hold the handle 35 and slide the slider 34 downwards along the linear slide rail 33 until the spring testing pins J1, J2, and J3 are fully inserted into the three-phase pin holes of the motor. Observe the exposed length of the testing pins. If all reach the preset testing depth (e.g., J1 exposed ≤ 2mm) and there is no obvious resistance, the three-phase pin position is deemed qualified; otherwise, it is deemed unqualified. Example 2

[0040] For motor models with different three-phase pin pitches, the gauge can be adjusted in the following ways:

[0041] Loosen the fixing bolts between the support frame 31 and the base 1, move the support frame laterally to adjust the horizontal position of the detection mechanism, and align it with the target detection hole; replace the spring detection pins of different specifications (such as replacing J1 / J2 / J3 with detection pins that match the hole diameter), and repeat the detection process of Example 1 to achieve compatible detection of multiple motor models.

[0042] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A three-phase needle position gauge for a motor assembly, comprising a base (1), characterized in that, Also includes: A detection support plate (2) is installed on the top of the base (1); The detection mechanism (3) is installed on the top of the base (1) and located on the rear side of the detection support plate (2); Clamp A (4), which is mounted on the top of the base (1) and located on the left side of the detection support plate (2); The clamp B (5) is mounted on the top of the base (1) and located on the right side of the detection support plate (2).

2. The three-phase needle position gauge for a motor assembly according to claim 1, characterized in that: The detection mechanism (3) includes a support frame (31) fixedly installed on the base (1) by bolts, a support plate (32) fixedly installed on the front side of the support frame (31), linear slide rails (33) installed on both sides of the front end of the support plate (32), a slider (34) slidably connected to the two sets of slide rails (33), and a handle (35) installed on one side of the support plate (32).

3. The three-phase needle position gauge for a motor assembly according to claim 2, characterized in that: The front end of the slider (34) is respectively provided with spring detection pin J1, spring detection pin J2 and spring detection pin J3.

4. The three-phase needle position gauge for a motor assembly according to claim 1, characterized in that: Positioning pins B and C are respectively inserted on both sides of the top of the detection support plate (2).

5. A three-phase needle position gauge for a motor assembly according to claim 1, characterized in that: Reference key I, reference key II and reference key III are respectively installed at the corners of the base (1), and handles (6) are installed on both sides of the base (1) in a staggered manner.

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