Detection tool for axial position of inclined hole of motor shaft part

Abstract

The utility model discloses a testing fixture for the axial position of an inclined hole of a motor shaft part, and relates to the technical field of machining detection, the testing fixture for the axial position of the inclined hole of the motor shaft part comprises a detection column and a square key, the left side of the detection column is provided with a connecting column, and the annular side surface of the detection column is provided with an arc-shaped groove I; according to the utility model, the theoretical central plane position of the inclined hole is found through simulation assembly to serve as an indirect reference surface, the measurement process is simplified, complex direct measurement operation is not needed, and the axial distance of the inclined hole can be conveniently and rapidly detected only by using a depth gauge, so that the detection efficiency is greatly improved; accurate measurement is the key to guarantee product quality, the gauge can rapidly and accurately detect the distance between the center of the inclined hole and the plane of the shaft end, it is guaranteed that the product meets the required precision range, and corresponding measures can be taken for adjustment and improvement by finding dimensional deviation in time.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing detection, in particular to a detection tool for the axial position of an inclined hole of a motor shaft part. Background Art

[0002] The axial position inspection fixture for inclined holes of motor shaft parts is a tool specially used to detect the axial position of inclined holes at specific angles on motor shaft parts. During the inspection process, for larger motor shaft parts, there are multiple inclined holes for cable threading. They are processed using 5-axis machine tools. After processing, there is no other means of inspection except using large gantry three-coordinate measurement. However, three-coordinate measurement is not only time-consuming and labor-intensive, but the inspection cost of large gantry three-coordinate measurement is also high, which is not conducive to production cost control and greatly takes up inspection time, and cannot meet the efficiency of mass production. Utility Model Content

[0003] (1) Technical problems solved

[0004] In response to the shortcomings of the existing technology, the utility model provides a gauge for the axial position of the inclined hole of motor shaft parts, which solves the problem that three-coordinate detection is not only time-consuming and labor-intensive, but also the detection cost of large-scale gantry three-coordinate is high, which is not conducive to production cost control and greatly takes up detection time, and cannot meet the efficiency of mass production.

[0005] (2) Technical solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a detection fixture for the axial position of the inclined hole of motor shaft parts, comprising a detection column and a square key, a connecting column is provided on the left side of the detection column, an arc-shaped groove 1 is provided on the annular side surface of the detection column, a pulley is rotatably connected in the arc-shaped groove 1, a screw is fixedly connected to the left surface of the pulley, two arc blocks are fixedly connected to the right surface of the connecting column, a round rod is fixedly connected to the front surface of the square key, a nut is threadedly sleeved on the front end of the round rod, a circular groove is provided on the inner wall of the arc-shaped groove 1, and a connecting shaft is fixedly connected to the right surface of the pulley.

[0007] As an optimal technical solution of the present invention, the connecting shaft is rotatably connected to the circular groove, the right surface of the detection column is fixedly connected to a toothed column, the annular side surface of the detection column is penetrated by a hole, and the hole is movably connected to the round rod.

[0008] As a preferred technical solution of the present invention, two arc-shaped grooves 2 are provided on the left surface of the detection column, and the two arc-shaped grooves 2 are movably engaged with the two arc-shaped blocks respectively.

[0009] As a preferred technical solution of the present invention, a connecting block is fixedly connected to the lower surface of the upper arc-shaped block of the two arc-shaped blocks, and the connecting block is threadedly sleeved with the screw.

[0010] As a preferred technical solution of the present invention, a clamping groove is provided on the surface of the upper arc-shaped groove 2 of the two arc-shaped grooves 2, and the clamping groove is movably connected to the connecting block.

[0011] (3) Beneficial effects

[0012] 1. By simulating assembly, the theoretical center plane position of the inclined hole is found as an indirect reference plane, which simplifies the measurement process. There is no need for complex direct measurement operations. The axial distance of the inclined hole can be easily and quickly detected using a depth gauge, which greatly improves the detection efficiency. Accurate measurement is the key to ensuring product quality. The inspection fixture can quickly and accurately detect the distance between the center of the inclined hole and the shaft end plane, ensuring that the product meets the required accuracy range (843±0.3mm). By timely discovering dimensional deviations, appropriate measures can be taken to make adjustments and improvements, avoiding product scrap and quality problems caused by dimensional non-conformity, and improving the product's qualification rate and reliability.

[0013] 2. The connecting block will drive the arc block fixed with it to move during the movement process, and the movement of the arc block will drive the connecting column to move. At this time, the distance between the detection column and the connecting column can be flexibly adjusted according to the depth of the inclined hole so that the square key can be completely fitted on the shaft surface. This structure is easy to operate and improves the overall practicality. The toothed column can facilitate the removal of the detection column and the square key from the inclined hole. By turning the nut to open the limit of the detection column and the square key, the two can be disassembled. For inclined holes of different sizes, detection columns of different sizes can be flexibly replaced to adapt to meet the needs of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0015] Figure 1 This is the overall structural diagram of the utility model;

[0016] Figure 2 This is the structural diagram of the middle key in the utility model;

[0017] Figure 3 This is a structural diagram of the connecting column in the utility model;

[0018] Figure 4 This is the structural diagram of the detection column in this utility model.

[0019] Legend: 1. Detection column; 2. Square key; 3. Toothed column; 4. Pulley; 5. Nut; 6. Arc block; 7. Connecting column; 8. Hole; 9. Round rod; 10. Arc groove 1; 11. Connecting block; 12. Connecting shaft; 13. Screw; 14. Round groove; 15. Arc groove 2; 16. Card slot. DETAILED DESCRIPTION

[0020] The embodiment of the present application provides a measuring fixture for the axial position of the inclined hole of motor shaft parts, which effectively solves the problem that three-coordinate detection is not only time-consuming and labor-intensive, but also the detection cost of large-scale gantry three-coordinate is high, which is not conducive to production cost control and greatly takes up detection time, and cannot meet the efficiency of mass production.

[0021] Example

[0022] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the overall idea of ​​the embodiment of this application is as follows:

[0023] In view of the problems existing in the prior art, the utility model provides a kind of inspection tool for the axial position of the oblique hole of the motor shaft parts, including a detection column 1 and a square key 2, a connecting column 7 is provided on the left side of the detection column 1, an arc groove 10 is provided on the annular side of the detection column 1, a pulley 4 is rotatably connected in the arc groove 10, a screw 13 is fixedly connected to the left surface of the pulley 4, two arc blocks 6 are fixedly connected to the right surface of the connecting column 7, a round rod 9 is fixedly connected to the front surface of the square key 2, a nut 5 is threadedly sleeved on the front end of the round rod 9, a circular groove 14 is provided on the inner wall of the arc groove 10, and a pulley 4 is rotatably connected in the arc groove 10. The surface is fixedly connected with a connecting shaft 12. This gauge is installed in the inclined hole to be measured, and the center plane of the axial dimension of the inclined hole is quickly found through the square key 2 on the gauge. The specific size of the square key 2 (10*12) has been carefully calculated and designed, and it fits tightly with the shaft surface, providing a reliable basis for positioning. The theoretical center plane position of the inclined hole is found as an indirect reference plane through simulated assembly, which simplifies the measurement process. There is no need for complex direct measurement operations. The axial distance of the inclined hole can be easily and quickly detected using only a depth gauge, which greatly improves the detection efficiency.

[0024] The connecting shaft 12 is rotatably connected to the circular groove 14, and the right surface of the detection column 1 is fixedly connected to the toothed column 3. The annular side surface of the detection column 1 is penetrated by a hole 8, and the hole 8 is movably connected to the round rod 9. The left surface of the detection column 1 is provided with two arc grooves 2 15, and the two arc grooves 2 15 are movably engaged with the two arc blocks 6 respectively. Accurate measurement is the key to ensuring product quality. The inspection tool can quickly and accurately detect the distance between the center of the inclined hole and the plane of the shaft end, ensuring that the product meets the required accuracy range (843±0.3mm). By timely discovering dimensional deviations, corresponding measures can be taken to adjust and improve, avoiding product scrap and quality problems due to unqualified dimensions, and improving the product's qualification rate and reliability.

[0025] The lower surface of the upper arc block 6 of the two arc blocks 6 is fixedly connected with a connecting block 11, and the connecting block 11 is threadedly sleeved with the screw 13. A card slot 16 is provided on the surface of the upper arc slot 15 of the two arc slots 15, and the card slot 16 is movably clamped with the connecting block 11. During use, the length of the detection column 1 needs to be flexibly adjusted for inclined holes of different depths so that the square key 2 can fit on the shaft surface, which is convenient for subsequent measurements. By rotating the pulley 4, the screw 13 fixed thereto is driven to rotate together. When the screw 13 rotates, the connecting block 11 sleeved thereon is moved accordingly by the action of the thread, and the connection During the movement, the connecting block 11 will drive the arc block 6 fixed with it to move together, and the movement of the arc block 6 will drive the connecting column 7 to move. At this time, the distance between the detection column 1 and the connecting column 7 can be flexibly adjusted according to the depth of the inclined hole, so that the square key 2 can be completely fitted on the shaft surface. This structure is easy to operate and improves the overall practicality. The toothed column 3 can facilitate the removal of the detection column 1 and the square key 2 in the inclined hole. By turning the nut 5, the limit of the detection column 1 and the square key 2 is opened, and the two can be disassembled. For inclined holes of different sizes, detection columns 1 of different sizes can be flexibly replaced for adaptation to meet the needs of use.

[0026] Working principle:

[0027] The gauge is installed in the inclined hole to be measured, and the center plane of the axial size of the inclined hole is quickly aligned through the square key 2 on the gauge, the specific size (10*12) of the square key 2 is carefully calculated and designed, and is closely matched with the shaft surface to provide a reliable basis for positioning, the theoretical center plane position of the inclined hole is found as an indirect reference surface through simulation assembly, the measurement process is simplified, and the axial distance of the inclined hole is conveniently and quickly detected only by using a depth gauge, the detection efficiency is greatly improved, accurate measurement is the key to ensure product quality, the gauge can quickly and accurately detect the distance between the center of the inclined hole and the end plane of the shaft to ensure that the product meets the required accuracy range (843±0.3mm), size deviation is found in time so that corresponding measures are taken for adjustment and improvement, product scrap and quality problems caused by unqualified size are avoided, the qualified rate and reliability of the product are improved, in the use process, the length of the detection column 1 needs to be flexibly adjusted according to different depths of the inclined hole, so that the square key 2 can be attached to the shaft surface to facilitate subsequent measurement, the connecting block 11 sleeved on the screw rod 13 is moved by the screw thread action when the screw rod 13 is rotated, the connecting block 11 moves to drive the arc-shaped block 6 fixed thereto to move, the connecting column 7 is moved by the arc-shaped block 6 in the moving process, the distance between the detection column 1 and the connecting column 7 is flexibly adjusted according to the depth of the inclined hole, so that the square key 2 can be completely attached to the shaft surface, the structure is convenient to operate, and the practicability is improved, the detection column 1 and the square key 2 can be conveniently taken out of the inclined hole through the tooth groove column 3, the detection column 1 and the square key 2 can be disassembled by rotating the nut 5 to open the limit of the detection column 1 and the square key 2, different sizes of the detection column 1 can be flexibly replaced to adapt to different sizes of the inclined hole, and the use needs are met.

[0028] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the utility model, and are not limited to the implementation mode. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the implementation modes need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A tool for detecting the axial position of an oblique hole of a motor shaft part, comprising a detection column (1) and a square key (2), characterized in that: A connecting column (7) is provided on the left side of the detection column (1), and an arc-shaped groove (10) is provided on the annular side surface of the detection column (1), and a pulley (4) is rotatably connected in the arc-shaped groove (10); The left surface of the pulley (4) is fixedly connected to a screw rod (13), the right surface of the connecting column (7) is fixedly connected to two arc-shaped blocks (6), the front surface of the square key (2) is fixedly connected to a round rod (9), and the front end of the round rod (9) is threadedly sleeved with a nut (5).

2. A tool for checking the axial position of an oblique hole of a motor shaft as claimed in claim 1, characterized in that: The inner wall of the arc-shaped groove (10) is provided with a circular groove (14); Wherein, a connecting shaft (12) is fixedly connected to the right surface of the pulley (4).

3. A tool for checking the axial position of an oblique hole of a motor shaft as claimed in claim 2, characterized in that: The connecting shaft (12) is rotatably connected to the circular groove (14); Wherein, a toothed column (3) is fixedly connected to the right surface of the detection column (1).

4. A tool for checking the axial position of an oblique hole of a motor shaft as claimed in claim 1, characterized in that: A hole (8) is formed through the annular side surface of the detection column (1); The hole (8) is movably connected to the round rod (9).

5. A tool for checking the axial position of an oblique hole of a motor shaft part according to claim 1, characterized in that: The left surface of the detection column (1) is provided with two arc-shaped grooves (15); The two arc-shaped grooves (15) are respectively movably connected to the two arc-shaped blocks (6).

6. A tool for checking the axial position of an oblique hole of a motor shaft as claimed in claim 1, characterized in that: A connecting block (11) is fixedly connected to the lower surface of the upper arc-shaped block (6) of the two arc-shaped blocks (6); The connecting block (11) is threadably sleeved with the screw rod (13).

7. A tool for checking the axial position of an oblique hole of a motor shaft as claimed in claim 5, characterized in that: A clamping groove (16) is provided on the surface of the upper arc-shaped groove (15) of the two arc-shaped grooves (15).

8. A tool for checking the axial position of an oblique hole of a motor shaft as claimed in claim 7, characterized in that: The clamping slot (16) is movably clamped with the connecting block (11).

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