A detection tool for detecting the hole depth of a motor shell

Abstract

The application relates to a detection tool for detecting the inner hole depth of a motor shell and relates to the technical field of mechanical detection, which comprises a base for placing the motor shell, a mounting frame is arranged on the base, a mounting block is vertically slidably arranged on the mounting frame, a reference block is arranged on one side of the mounting block, the reference block can be in abutting cooperation with the motor shell in the vertical direction, a through hole is formed in the reference block, a detection rod of a dial gauge is arranged through the through hole and is in detachable fixed connection with the reference block, and the end of the detection rod of the dial gauge, which is far away from the reference block, can be inserted into the inner hole of the motor shell for measurement. The application realizes convenient and accurate detection of the inner hole depth of the motor shell and has the effects of reducing detection errors and improving detection efficiency.

Description

Technical Field

[0001] This application relates to the field of mechanical testing technology, and in particular to a gauge for detecting the depth of the inner hole of an motor housing. Background Technology

[0002] In the motor manufacturing industry, the machining quality of the motor housing is crucial to the performance of the motor and the assembly quality of subsequent components. With the continuous expansion of motor applications, the requirements for the machining precision of motor housings are becoming increasingly stringent. Currently, in the motor housing machining process, to ensure product quality, a series of machining and inspection methods are typically employed. Generally, a rough machining process is first used to create the blank, and then the blank is finished using a machining center or machine tool. Finishing includes processes such as trimming, grinding, and drilling.

[0003] After the drilling process is completed, in order to ensure the assembly quality of subsequent parts, it is usually necessary to check the depth of the holes to ensure that the depth difference of multiple holes is within the error range. The current method is for workers to use a dial indicator to check the depth of each hole one by one. This method can detect whether the hole depth meets the requirements to a certain extent.

[0004] However, the existing method of manually using a handheld dial indicator to detect the depth of the inner hole of the motor housing has obvious drawbacks. Since the reference surface cannot be fixed during manual detection, the reference may be inconsistent for each detection, resulting in a relatively large detection error. This makes it difficult to guarantee the stability of product quality in batch processing and requires improvement. In addition, this manual detection method is inconvenient to use and has low efficiency, which cannot meet the needs of large-scale production. Utility Model Content

[0005] To address the issues of large errors and low efficiency in manually measuring the depth of the inner hole of a motor housing using a handheld dial indicator, this application provides a gauge for measuring the depth of the inner hole of a motor housing.

[0006] This application provides a gauge for detecting the depth of the inner hole of a motor housing, which adopts the following technical solution: A gauge for measuring the depth of an inner hole in a motor housing includes a base for placing the motor housing, a mounting bracket on the base, and a mounting block slidably mounted on the mounting bracket. A reference block is provided on one side of the mounting block, and the reference block can abut against the motor housing in a vertical direction. A through hole is provided on the reference block, and the probe of a dial indicator passes through the through hole and is detachably and fixedly connected to the reference block. The end of the dial indicator probe away from the reference block can be inserted into the inner hole of the motor housing for measurement.

[0007] By adopting the above technical solution, the base is used to place the motor housing, providing stable support for testing. The mounting bracket provides a carrier for the sliding of the mounting block. At the same time, the mounting block is vertically slidable on the mounting bracket, which facilitates flexible adjustment of the height and position of the reference block and dial indicator according to actual needs. The reference block can abut against the motor housing in the vertical direction, which can determine the reference surface for testing and ensure that the reference is consistent for each test, thereby reducing testing errors. The through holes on the reference block facilitate the installation and removal of the dial indicator. The overall structure is simple and easy to operate, which greatly improves the testing efficiency compared to manual handheld testing and provides a guarantee for the quality stability in mass production.

[0008] Preferably, a limiting block is rotatably provided on the base, and the limiting block has an annular placement groove that forms an embedded limiting fit with the motor housing.

[0009] By adopting the above technical solution, a rotatable limiting block is set on the base, which facilitates the detection of the inner hole at different positions of the motor housing. This eliminates the need to frequently move the motor housing during the detection process, thus improving detection efficiency. Furthermore, the limiting block has an annular placement groove that forms an embedded limiting fit with the motor housing, which can limit and fix the motor housing, keeping it stable during the detection process and preventing the detection results from being affected by shaking. This improves the accuracy and stability of the detection.

[0010] Preferably, the annular placement groove on the limiting block is arranged in a stepped shape.

[0011] By adopting the above technical solution, the stepped annular placement groove can better adapt to motor housings of different sizes, improving the versatility and applicability of the inspection tool. At the same time, it provides a stable and precise placement position for the motor housing, enhances the limiting effect on the motor housing, and improves the accuracy and reliability of the inspection.

[0012] Preferably, the distance between the mounting block and the reference block is adjustable.

[0013] By adopting the above technical solution, the distance between the mounting block and the reference block can be adjusted. According to the size of different motor housings and testing requirements, the distance between the mounting block and the reference block can be flexibly adjusted so that the dial indicator's testing rod can be accurately inserted into the inner hole of the motor housing for measurement, thereby improving the accuracy and applicability of the test.

[0014] Preferably, the mounting bracket is provided with a positioning mechanism for temporarily fixing the mounting block.

[0015] By adopting the above technical solution, the positioning mechanism can temporarily fix the mounting block. When the staff replaces the motor housing, it can effectively prevent the mounting block from sliding down, thereby ensuring the smooth replacement of the motor housing and making the testing process more convenient and efficient, meeting the needs of large-scale production.

[0016] Preferably, the positioning mechanism includes a first strong magnetic block disposed on the top of the mounting frame and a second strong magnetic block disposed on the mounting block, and the mounting block can be fixed to the top of the mounting frame by the adsorption and cooperation of the first strong magnetic block and the second strong magnetic block.

[0017] By adopting the above technical solution, the first and second strong magnetic blocks in the positioning mechanism can be attracted together to temporarily fix the mounting block to the top of the mounting frame, preventing the mounting block from sliding down when the staff replaces the motor housing. The magnetic fixing method makes fixing and unfixing the mounting block very convenient, thereby making the whole testing process more efficient and adaptable to the needs of large-scale production.

[0018] Preferably, the mounting bracket includes a mounting base, a receiving rod, and a fixing rod. The mounting base is fixedly connected to the base. One end of the receiving rod is rotatably connected to the mounting base, and the mounting block is vertically slidably mounted on the receiving rod. One end of the fixing rod is rotatably connected to the receiving rod and is located below the mounting block. The other end of the fixing rod is provided with a fixing bolt, and the fixing bolt passes through the fixing rod and is threadedly connected to the base.

[0019] By adopting the above technical solution, the mounting base in the mounting frame provides stable support for the entire mounting frame. The supporting rod is rotatably connected to the mounting base, allowing the mounting frame to be folded and stored when not in use, reducing space occupation. One end of the fixing rod is rotatably connected to the supporting rod, and the other end is threadedly connected to the base through a fixing bolt. This can stably fix the supporting rod during testing, preventing it from rotating and ensuring the stability of the testing process. At the same time, when the mounting frame is not in use, simply unscrewing the fixing bolt to release the fixing rod from the base allows the supporting rod to rotate flexibly and be folded and stored.

[0020] Preferably, a rubber pad is provided on the side of the reference block that forms an abutment fit with the motor housing.

[0021] By adopting the above technical solution, a rubber pad is set on the side where the reference block and the motor housing form an abutment fit, which can prevent the reference block from directly contacting the motor housing and scratching the surface of the motor housing, thus protecting the motor housing.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The base is used to place the motor housing, and the stepped annular groove on the limiting block is used to embed and limit the motor housing, which facilitates the placement and positioning of the motor housing and can better adapt to motor housings of different sizes. At the same time, the rotating setting of the limiting block facilitates the inspection of the inner hole at different positions of the motor housing. The mounting block drives the reference block to abut against the motor housing, so that the reference surface is fixed during dial indicator testing, reducing the detection error. In addition, the distance between the mounting block and the reference block can be flexibly adjusted according to the size of different motor housings and testing requirements, further improving the accuracy and applicability of the test. 2. The positioning mechanism can temporarily fix the mounting block to the top of the mounting frame by the attraction of the first strong magnetic block and the second strong magnetic block, so as to prevent the mounting block from sliding down when the staff replaces the motor housing. This magnetic fixing method makes fixing and unfixing the mounting block very convenient, thereby making the whole testing process more efficient and adaptable to the needs of large-scale production. 3. The mounting bracket can be folded and stored when not in use by means of the rotational engagement between the mounting base, the receiving rod and the fixing rod, thus reducing the space occupied; a rubber pad is placed on the side where the reference block abuts against the motor housing to prevent the reference block from directly contacting the motor housing and scratching the surface of the motor housing, thereby protecting the motor housing. Attached Figure Description

[0023] Figure 1 This is an isometric schematic diagram (in detection state) of the main overall structure in the embodiments of this application; Figure 2 This is an isometric schematic diagram of the main structures of the mounting bracket and positioning mechanism in the embodiments of this application.

[0024] Reference numerals in the attached drawings: 1. Base; 2. Limiting block; 21. Annular placement groove; 3. Mounting bracket; 31. Mounting seat; 32. Supporting rod; 321. Positioning block; 33. Fixing rod; 331. Fixing bolt; 4. Mounting block; 41. Adjusting bolt; 5. Reference block; 51. Through hole; 52. Locking bolt; 53. Connecting rod; 531. Adjusting groove; 6. Dial indicator; 61. Detection rod; 611. Elastic retaining ring; 7. Rubber pad; 8. Positioning mechanism; 81. First strong magnetic block; 82. Second strong magnetic block. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 - Appendix Figure 2 This application will be described in further detail.

[0026] This application discloses a gauge for detecting the depth of the inner hole of an motor housing.

[0027] Reference Figure 1 and Figure 2A gauge for detecting the depth of an inner hole in a motor housing includes a base 1 for placing the motor housing. A limiting block 2 is rotatably mounted on the base 1. In this embodiment, the limiting block 2 is rotatably connected to the base 1 via a bearing. The limiting block 2 has an annular placement groove 21 that forms an embedded limiting fit with the motor housing, and the annular placement groove 21 on the limiting block 2 is stepped. A mounting bracket 3 is provided on one side of the base 1 near the limiting block 2, and a mounting block 4 is vertically slidably mounted on the mounting bracket 3. A reference block 5 is detachably and fixedly connected to one side of the mounting block 4, and the reference block 5 can form an abutment fit with the motor housing in the vertical direction. The reference block 5 has a vertical through hole 51. The measuring rod 61 of the dial indicator 6 passes through the through hole 51 and forms a detachable fixed connection with the reference block 5. The end of the measuring rod 61 of the dial indicator 6 away from the reference block 5 can be inserted into the inner hole of the motor housing for measurement. In this embodiment, the measuring rod 61 of the dial indicator 6 is fitted with an elastic retaining ring 611, and the measuring rod 61 of the dial indicator 6 is connected to the through hole 51 of the reference block 5 through the elastic retaining ring 611. A threaded groove communicating with the through hole 51 is opened on one side of the reference block 5 in the horizontal direction, and a locking bolt 52 that abuts against the elastic retaining ring 611 is threaded in the threaded groove.

[0028] In practical use, the base 1 provides a supporting foundation for the entire inspection fixture. During inspection, the operator places the motor housing in the annular placement groove 21 on the limiting block 2 for limiting and fixing. This ensures that the motor housing remains stable during the inspection process, preventing the inspection results from being affected by shaking, and improving the accuracy and stability of the inspection. The rotating setting of the limiting block 2 allows the operator to inspect the inner hole at different positions of the motor housing by rotating the limiting block 2, improving the inspection efficiency. At the same time, the annular placement groove 21 is set in a stepped shape, which can better adapt to motor housings of different sizes, improving the versatility and applicability of the inspection fixture. Mounting block 4 is vertically slidable on mounting bracket 3, allowing staff to flexibly adjust the height of reference block 5 and dial indicator 6 according to actual needs during the testing process. Reference block 5 abuts against the motor housing to determine the reference surface for testing, ensuring consistency of the reference for each test and thus reducing testing errors. The elastic retaining ring 611 and locking bolt 52 cooperate to detachably fix the testing rod 61 of dial indicator 6 in the through hole 51 on reference block 5, facilitating the installation and removal of dial indicator 6. The overall structure is simple and easy to operate, significantly improving testing efficiency compared to manual handheld testing and ensuring quality stability in mass production.

[0029] Reference Figure 1 and Figure 2The reference block 5 has a rubber pad 7 fixedly connected to one side that forms an abutment fit with the motor housing. In actual use, the rubber pad 7 can prevent the reference block 5 from directly contacting the motor housing and scratching the surface of the motor housing during testing, thereby protecting the motor housing.

[0030] Reference Figure 1 and Figure 2 The distance between the mounting block 4 and the reference block 5 is adjustable. In this embodiment, the reference block 5 is fixedly connected to the mounting block 4 by welding on the side of the mounting block 4. The connecting rod 53 is provided with an adjustment groove 531 in the horizontal direction. The mounting block 4 is provided with an adjustment bolt 41 that is embedded and slides with the adjustment groove 531 at one end near the reference block 5. The adjustment bolt 41 passes through the adjustment groove 531 and is threadedly connected to the mounting block 4.

[0031] In practical use, the adjusting bolt 41 is loosened by turning it, and the adjusting bolt 41 and the adjusting groove 531 form an embedded sliding fit. This allows the distance between the mounting block 4 and the reference block 5 to be flexibly adjusted according to the size of different motor housings and testing requirements. This enables the measuring rod 61 of the dial indicator 6 to be accurately inserted into the inner hole of the motor housing for measurement, improving the accuracy and applicability of the test. Once the reference block 5 is adjusted to the appropriate position, simply turn the adjusting bolt 41 to press it against the connecting rod 53 to fix the position of the reference block 5, preventing the measuring rod 61 of the dial indicator 6 from shifting during testing.

[0032] Reference Figure 1 and Figure 2 The mounting bracket 3 includes a mounting base 31, a receiving rod 32, and a fixing rod 33. The mounting base 31 is fixedly connected to the base 1 by welding. One end of the receiving rod 32 is hinged to the mounting base 31, and the mounting block 4 is vertically slidably mounted on the receiving rod 32. One end of the fixing rod 33 is hinged to the receiving rod 32 and located below the mounting block 4. The other end of the fixing rod 33 is provided with a fixing bolt 331, and the fixing bolt 331 passes through the fixing rod 33 and is threadedly connected to the base 1.

[0033] In practical use, the mounting base 31 in the mounting frame 3 provides stable support for the entire mounting frame 3. When using the inspection tool for testing, the fixing rod 33 in the mounting frame 3 is fixedly connected to the base 1 by the fixing bolt 331, which can stably fix the supporting rod 32 to keep it vertical and prevent the supporting rod 32 from rotating during testing, thus ensuring the stability of the testing process. When the inspection tool is not in use, the fixing bolt 331 can be loosened by turning it to release the fixed connection between the fixing rod 33 and the base 1. At this time, the supporting rod 32 can be flexibly rotated to achieve folding and storage, thereby reducing the space occupied.

[0034] Reference Figure 1 and Figure 2The mounting frame 3 is provided with a positioning mechanism 8 for temporarily fixing the mounting block 4. The positioning mechanism 8 includes a first strong magnetic block 81 disposed on the top of the mounting frame 3 and a second strong magnetic block 82 disposed on the mounting block 4. In this embodiment, the end of the receiving rod 32 of the mounting frame 3 away from the base 1 is fixedly connected to the positioning block 321 by welding. The first strong magnetic block 81 and the second strong magnetic block 82 are respectively fixedly installed on the side of the positioning block 321 and the mounting block 4 that are close to each other, and the mounting block 4 can be fixed to the top of the mounting frame 3 by the adsorption cooperation of the first strong magnetic block 81 and the second strong magnetic block 82.

[0035] In practical use, the positioning block 321 provides an installation base for the first strong magnetic block 81. When the staff needs to replace the motor housing for testing, the first strong magnetic block 81 and the second strong magnetic block 82 in the positioning mechanism 8 can be used to form an adsorption engagement to temporarily fix the mounting block 4 on the top of the mounting frame 3, preventing the mounting block 4 from sliding down when the staff replaces the motor housing, thus ensuring the smooth replacement of the motor housing. At the same time, the magnetic fixing method makes it very convenient to fix and release the mounting block 4, making the entire testing process more convenient and efficient, and meeting the needs of large-scale production.

[0036] The implementation principle of this application embodiment is as follows: with the base 1 as the supporting foundation, the motor housing is embedded and limited in the stepped annular placement groove 21 on the rotatable limiting block 2 to achieve stable positioning and multi-position detection adaptation; the height of the reference block 5 and the dial indicator 6 is adjusted by the vertically sliding mounting block 4 on the mounting bracket 3, and the reference block 5 abuts against the motor housing to determine a consistent detection reference, thereby reducing detection error. At the same time, the horizontal distance between the mounting block 4 and the reference block 5 can be flexibly adjusted by the adjustment groove 531 on the connecting rod 53 and the adjustment bolt 41 on the mounting block 4 to ensure that the dial indicator 6 detection rod 61 is accurately inserted into the inner hole after being fixed by the elastic retaining ring 611 and the locking bolt 52, further improving the detection accuracy. The rubber pad 7 can prevent the reference block 5 from directly contacting the motor housing during detection and scratching the surface of the motor housing. The mounting bracket 3 keeps the supporting rod 32 vertically stable through the fixing rod 33 and fixing bolt 331. It can also be folded and stored when not in use to reduce space occupation. When replacing the motor housing, the first strong magnet 81 and the second strong magnet 82 in the positioning mechanism 8 form an adsorption fit to fix the mounting block 4, which can prevent the mounting block 4 from sliding down when the operator replaces the motor housing, thus ensuring the smooth replacement of the motor housing. The whole system achieves accurate and efficient detection of the inner hole depth of the motor housing through the cooperation of various components. Moreover, the overall structure is simple and easy to operate. Compared with manual hand-held detection, it greatly improves the detection efficiency and provides a guarantee for the quality stability in mass production.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A gauge for detecting the depth of an inner hole in a motor housing, characterized in that: The device includes a base (1) for placing the motor housing, a mounting bracket (3) on the base (1), and a mounting block (4) vertically slidably mounted on the mounting bracket (3). A reference block (5) is provided on one side of the mounting block (4), and the reference block (5) can form an abutment with the motor housing in the vertical direction. A through hole (51) is provided on the reference block (5), and the measuring rod (61) of the dial indicator (6) passes through the through hole (51) and forms a detachable fixed connection with the reference block (5). The end of the measuring rod (61) of the dial indicator (6) away from the reference block (5) can be inserted into the inner hole of the motor housing for measurement.

2. The inspection tool for detecting the depth of the inner hole of a motor housing according to claim 1, characterized in that: A limiting block (2) is rotatably provided on the base (1), and an annular placement groove (21) is provided on the limiting block (2) to form an embedded limiting fit with the motor housing.

3. The inspection tool for detecting the depth of the inner hole of a motor housing according to claim 2, characterized in that: The annular placement groove (21) on the limiting block (2) is arranged in a stepped shape.

4. The inspection tool for detecting the depth of the inner hole of a motor housing according to claim 1, characterized in that: The distance between the mounting block (4) and the reference block (5) is adjustable.

5. The inspection tool for detecting the depth of the inner hole of a motor housing according to claim 1, characterized in that: The mounting bracket (3) is provided with a positioning mechanism (8) for temporarily fixing the mounting block (4).

6. A gauge for detecting the depth of an inner hole in a motor housing according to claim 5, characterized in that: The positioning mechanism (8) includes a first strong magnetic block (81) disposed on the top of the mounting frame (3) and a second strong magnetic block (82) disposed on the mounting block (4), and the mounting block (4) can be fixed on the top of the mounting frame (3) by the adsorption of the first strong magnetic block (81) and the second strong magnetic block (82).

7. A gauge for detecting the depth of an inner hole in a motor housing according to claim 1, characterized in that: The mounting bracket (3) includes a mounting base (31), a receiving rod (32), and a fixing rod (33). The mounting base (31) is fixedly connected to the base (1). One end of the receiving rod (32) is rotatably connected to the mounting base (31), and the mounting block (4) is vertically slidably mounted on the receiving rod (32). One end of the fixing rod (33) is rotatably connected to the receiving rod (32) and located below the mounting block (4). The other end of the fixing rod (33) is provided with a fixing bolt (331), and the fixing bolt (331) passes through the fixing rod (33) and is threadedly connected to the base (1).

8. A gauge for detecting the depth of an inner hole in a motor housing according to claim 1, characterized in that: The reference block (5) has a rubber pad (7) on one side that can form an abutment fit with the motor housing.

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