Device for detecting precision of flange run-out detection equipment

Abstract

A device for detecting the precision of a flange run-out detection device comprises a standard workpiece, a first gauge block for detecting the precision of an end face run-out sensor and a second gauge block for detecting the precision of a radial run-out sensor, the standard workpiece comprises a flange and a driving shaft, and the axial end face of the flange is a horizontal plane. The inner circle of the flange is a perfect circle, the shape of the first gauge block is a cuboid, the thickness of the first gauge block is at least 2mm, the cross section of the second gauge block is L-shaped, the second gauge block comprises a measuring part and a fixing part, the lower end face of the fixing part is a standard plane, one side of the measuring part is a vertical plane, and the other side of the measuring part is a cambered surface. The radius of the cambered surface is the same as that of the inner circle of the flange, and the distance between the top of the cambered surface of the measuring part and the vertical plane is at least 2mm.

Description

Technical Field

[0001] The utility model relates to the field of detection devices, in particular to a device for detecting the accuracy of flange runout detection equipment. Background Art

[0002] In the production of the main reducer, whether the radial and end face runout values ​​of the flange are within a reasonable range is an important means to detect the assembly quality of the main cone assembly of the main reducer. The radial and end face runout of the flange are detected by two different sensors on the detection device. The two sensors automatically detect and mark the highest position by recording and marking the flange and end face runout data, and automatically record, store, upload, trace and query each set of data, thereby improving the detection efficiency and accuracy. The detection device needs to detect a large number of main reducer products. During long-term use, the manufacturing errors between actual parts and the cumulative errors of bearing clearances, etc., cause detection errors in the two detection sensors, resulting in inaccurate detection results of the radial and end face runout of the flange flange of the main reducer, and it is impossible to determine whether it is a problem with the detection equipment or an error in the part itself. This will affect the detection quality of the radial and end face runout of the flange flange, resulting in poor assembly quality of the main cone assembly of the main reducer. How to solve these problems requires a device for detecting the accuracy of flange runout detection equipment. Summary of the invention

[0003] The purpose of the utility model is to provide a device for detecting the accuracy of flange runout detection equipment in view of the shortcomings of the prior art, so as to solve the problem that the detection accuracy, reliability and detection efficiency of the flange runout detection equipment are affected by the cumulative error of the detection equipment.

[0004] The purpose of the utility model is achieved by adopting the following scheme: a device for detecting the accuracy of flange runout detection equipment, comprising a standard workpiece, a first gauge block for detecting the accuracy of an end face runout sensor, and a second gauge block for detecting the accuracy of a radial runout sensor, wherein the standard workpiece comprises a flange flange and a drive shaft, the axial end face of the flange flange is a horizontal plane, the inner circle of the flange flange is a perfect circle, the first gauge block is in the shape of a rectangular parallelepiped, the thickness of the first gauge block is at least 2 mm, the cross-section of the second gauge block is L-shaped, the second gauge block comprises a measuring part and a fixing part, the lower end face of the fixing part is a standard plane, one side of the measuring part is a vertical plane, and the other side is an arc surface, the arc surface has the same radius as the inner circle of the flange flange, and the distance between the top of the arc surface of the measuring part and the vertical plane is at least 2 mm.

[0005] Preferably, the drive shaft is installed in the axial hole of the standard workpiece through a fixing member, the upper end of the drive shaft extends out of the axial hole of the standard workpiece and is fixedly connected to the flange flange, and a bevel gear is provided at the lower end for meshing with the driven gear inside the standard workpiece.

[0006] Further preferably, the fixing part includes a fixing plate and a fastening plate, the outer circumferential surface of the fixing plate is stepped to match the axial hole inside the standard workpiece, the axial hole inside the standard workpiece forms a limit for the axial shoulder of the fixing plate, the upper end of the fixing plate extends out of the axial hole of the standard workpiece and is fixedly connected to the fastening plate, and the fastening plate extends circumferentially and is fixedly connected to the external shell of the standard workpiece.

[0007] Further preferably, the drive shaft is clearance-matched with the fixed disk.

[0008] Further preferably, the fastening plate is provided with bolt through holes, and the fastening plate is fixedly connected to the outer shell of the standard workpiece by bolts.

[0009] Preferably, a downwardly extending clearance groove is provided at the inner bottom of the flange, a through hole is provided at the bottom of the clearance groove, a threaded hole is provided at the upper end of the drive shaft, and the flange is fixedly connected to the drive shaft by screws.

[0010] Preferably, the thickness of the first gauge block is 2-7 mm.

[0011] Preferably, the distance between the top of the arc surface of the measuring portion and the vertical plane is 2-7 mm.

[0012] By adopting the above scheme, a device for detecting the accuracy of flange runout detection equipment includes a standard workpiece, a first gauge block for detecting the accuracy of the end face runout sensor, and a second gauge block for detecting the accuracy of the radial runout sensor. By placing the first gauge block and the second gauge block on the flange end face of the standard workpiece, the end face runout sensor detects the displacement between the axial end face of the flange and the upper end face of the first gauge block to determine the accuracy of the end face runout sensor, and the radial runout sensor detects the displacement between the inner circle of the flange and the vertical plane of the second gauge block to determine the accuracy of the radial runout sensor, and the operation is simple; by cooperating with the first gauge block, the second gauge block and the standard workpiece, the sensor detection accuracy is timely determined, and the problem of cumulative error of the detection equipment affecting the reducer flange runout detection result is avoided, and the detection accuracy and detection efficiency of the flange runout detection equipment are effectively improved; the first gauge block, the second gauge block, the standard workpiece and the flange are all standard parts, the accuracy of the precision detection is high, and the detection result is reliable; the first gauge block and the second gauge block have a simple structure and are easy to produce.

[0013] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the standard workpiece of the utility model;

[0015] Figure 2 It is a cross-sectional view of the standard workpiece of the utility model;

[0016] Figure 3 This is a schematic diagram of the cooperation between the standard workpiece and the second gauge block of the utility model;

[0017] Figure 4 for Figure 3 A magnified view of point A;

[0018] Figure 5 This is a schematic diagram of the structure of the drive shaft of the utility model;

[0019] Figure 6 It is a cross-sectional view of the drive shaft of the utility model;

[0020] Figure 7 It is a structural schematic diagram of the first gauge block of the utility model;

[0021] Figure 8 It is a structural schematic diagram of the second gauge block of the utility model;

[0022] Fig. 9 It is a side view of the second gauge block of the utility model. DETAILED DESCRIPTION

[0023] See also Figures 1 to 9 , a device for detecting the accuracy of flange runout detection equipment, comprising a standard workpiece 8, a first gauge block 6 for detecting the accuracy of an end face runout sensor, and a second gauge block 7 for detecting the accuracy of a radial runout sensor. The standard workpiece 8 is a standard reducer, and the standard workpiece 8 comprises a flange 4 and a drive shaft 1. The axial end face of the flange 4 is a horizontal plane 43, and the inner circle 42 of the flange 4 is a perfect circle. The shape of the first gauge block 6 is a rectangular parallelepiped, and the thickness of the first gauge block 6 is at least 2 mm. The thickness of the first gauge block 6 is 2 to 7 mm. In this embodiment, the thickness of the first gauge block 6 is 5 mm. The cross-section of the second gauge block 7 is L-shaped, and comprises a measuring portion 72 and a fixing portion 71. The lower end face of the fixing portion 71 is a standard plane and a standard plane. The axial end face of the flange 4 is in contact with the horizontal plane 43, one side of the measuring part 72 is a vertical plane, and the other side is a curved surface 721, the curved surface 721 has the same radius as the inner circle 42 of the flange 4, ensuring that the curved surface 721 fits the inner circle wall of the flange 4, the distance between the top of the curved surface 721 of the measuring part 72 and the vertical plane is at least 2mm, the distance between the top of the curved surface 721 of the measuring part 72 and the vertical plane is 2 to 7mm, and in this embodiment, the distance between the top of the curved surface 721 of the measuring part 72 and the vertical plane is 5mm.

[0024] The first gauge block 6 and the second gauge block 7 are made of rolled chrome steel / tungsten carbide YG8. The first gauge block 6 and the second gauge block 7 are multiple groups of different measuring parts. When performing precision testing, the corresponding first gauge block 6 and the second gauge block 7 are selected according to the different flange runout detection equipment to be tested.

[0025] The drive shaft 1 is installed in the shaft hole of the standard workpiece 8 through a fixing part. The upper end of the drive shaft 1 extends out of the shaft hole of the standard workpiece 8 and is fixedly connected to the flange flange 4. The lower end is provided with a bevel gear 11 for meshing with the driven gear inside the standard workpiece 8. The fixing part includes a fixing plate 2 and a fastening plate 3. The outer circumferential surface of the fixing plate 2 is stepped and adapted to the shaft hole inside the standard workpiece 8. The shaft hole inside the standard workpiece 8 forms a limit for the shaft shoulder of the fixing plate 2. The upper end of the fixing plate 2 extends out of the shaft hole of the standard workpiece 8 and is fixedly connected to the fastening plate 3. The fastening plate 3 extends circumferentially and is provided with a bolt through hole 31 at the end. The fastening plate 3 is fixedly connected to the outer shell of the standard workpiece 8 by bolts. The drive shaft 1 is loosely matched with the fixing plate 2. The drive shaft 1 is stably installed on the standard workpiece 8 through a fixing part, providing better support for the flange flange 4, ensuring that the flange flange 4 supporting the first gauge block 6 and the second gauge block 7 is accurately positioned and not skewed, so as to avoid affecting the precision detection result.

[0026] A downwardly extending clearance groove 41 is provided at the bottom of the inner circle 42 of the flange 4, a through hole is provided at the bottom of the clearance groove 41, a threaded hole is provided at the upper end of the drive shaft 1, and the flange 4 is fixedly connected to the drive shaft 1 by screws 5.

[0027] When the utility model detects the accuracy, firstly, the standard workpiece is placed at the workpiece detection position of the flange runout detection equipment, and the detection assembly, namely the end face runout sensor and the radial runout sensor, is lowered. At this time, the end face runout sensor contacts the flange end face of the standard workpiece to collect the first data, and then the probe of the end face runout sensor is lifted, and the first gauge block is placed on the flange end face, so that the end face runout sensor contacts the upper end face of the first gauge block to collect the second data, and the two collected data are compared. If the two data are the same, it means that the end face runout sensor has good accuracy and can be used normally, and the detection of the accuracy of the end face runout sensor is completed; when the radial runout sensor is detected, the radial runout sensor is first placed on the inner circular wall of the flange flange 4 to collect the first radial data, and then the second gauge block 7 is placed at the collection point, so that the lower end face of the fixing part of the second gauge block 7 is fitted with the flange flange end face, and the arc surface of the measuring part is fitted with the inner circular wall of the flange flange 4, and the radial runout sensor collects the vertical plane of the measuring part for the second radial data, and the two radial data are compared. If the two radial data are the same, it is determined that the radial runout sensor has good accuracy and can continue to be used. In order to ensure more accurate detection accuracy and overcome the influence of thermal expansion and contraction of the gauge block, the accuracy test is carried out at an ambient temperature of 25°C.

[0028] The utility model can accurately detect the accuracy of the end face runout sensor and the radial runout sensor by cooperating with each other through the first gauge block, the second gauge block and the flange of the standard workpiece, avoiding the problem of inaccurate flange runout detection results due to error accumulation in the flange runout detection setting; the first gauge block and the second gauge block have simple structures, are easy to produce, and are also easy to operate.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification made to the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. A device for detecting the accuracy of flange runout detection equipment, characterized in that: The invention comprises a standard workpiece (8), a first gauge block (6) for detecting the accuracy of an end face runout sensor, and a second gauge block (7) for detecting the accuracy of a radial runout sensor. The standard workpiece (8) comprises a flange (4) and a drive shaft (1). The axial end face of the flange (4) is a horizontal plane (43). The inner circle (42) of the flange (4) is a perfect circle. The first gauge block (6) is in the shape of a rectangular parallelepiped. The thickness of the first gauge block (6) is at least 2 mm. The cross section of the second gauge block (7) is L-shaped. The second gauge block (7) comprises a measuring portion (72) and a fixing portion (71). The lower end face of the fixing portion (71) is a standard plane. One side of the measuring portion (72) is a vertical plane and the other side is a curved surface (721). The curved surface (721) has the same radius as the inner circle (42) of the flange (4). The distance between the top of the curved surface (721) of the measuring portion (72) and the vertical plane is at least 2 mm.

2. The device for detecting the accuracy of flange runout detection equipment according to claim 1, characterized in that: The drive shaft (1) is installed in the shaft hole of the standard workpiece (8) through a fixing member, the upper end of the drive shaft (1) extends out of the shaft hole of the standard workpiece (8) and is fixedly connected to the flange flange (4), and the lower end is provided with a bevel gear (11) for meshing with a driven gear inside the standard workpiece (8).

3. The device for detecting the accuracy of flange runout detection equipment according to claim 2, characterized in that: The fixing member comprises a fixing plate (2) and a fastening plate (3); the outer circumferential surface of the fixing plate (2) is stepped and matched with the shaft hole inside the standard workpiece (8); the shaft hole inside the standard workpiece (8) forms a limit for the shaft shoulder of the fixing plate (2); the upper end of the fixing plate (2) extends out of the shaft hole of the standard workpiece (8) and is fixedly connected to the fastening plate (3); the fastening plate (3) extends circumferentially and is fixedly connected to the outer shell of the standard workpiece (8).

4. The device for detecting the accuracy of flange runout detection equipment according to claim 2, characterized in that: The drive shaft (1) and the fixed disk (2) are clearance-matched.

5. The device for detecting the accuracy of flange runout detection equipment according to claim 3, characterized in that: The fastening plate (3) is provided with a bolt through hole (31), and the fastening plate (3) is fixedly connected to the outer shell of the standard workpiece (8) via bolts.

6. The device for detecting the accuracy of flange runout detection equipment according to claim 1, characterized in that: The bottom of the inner circle (42) of the flange (4) is provided with a downwardly extending clearance groove (41), the bottom of the clearance groove (41) is provided with a through hole, the upper end of the drive shaft (1) is provided with a threaded hole, and the flange (4) is fixedly connected to the drive shaft (1) by means of screws (5).

7. The device for detecting the accuracy of flange runout detection equipment according to claim 1, characterized in that: The thickness of the first gauge block (6) is 2 to 7 mm.

8. The device for detecting the accuracy of flange runout detection equipment according to claim 1, characterized in that: The distance between the top of the arc surface (721) of the measuring portion (72) and the vertical plane is 2 to 7 mm.

Images