Disk run-out detection device

Abstract

The utility model relates to the technical field of disc run-out detection, and discloses a disc run-out detection device. Comprising a rotating main shaft, a detection calibration rod is fixedly connected to the side wall of the rotating main shaft, a sensor induction support is fixedly connected to the end of the detection calibration rod, a mounting hole is formed in the inner wall of the side, away from the detection calibration rod, of the sensor induction support, and an auxiliary pre-fixing mechanism is arranged on the outer wall of one side of the sensor induction support; the auxiliary pre-fixing mechanism comprises four vertical plates which are uniformly and fixedly connected to the outer wall of the sensor induction support in the annular direction, square grooves are formed in the inner walls of the top ends of the four vertical plates, supporting blocks are slidably connected into the four square grooves, and limiting blocks are fixedly connected to the tops of the sides, away from the mounting holes, of the four supporting blocks. The sensor for measurement is fixed in the mounting hole in advance, compared with a manual supporting mode for fixing, the sensor for measurement can be located in the center of the mounting hole, and follow-up cooperation with a fastening bolt for fixing is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of disc runout detection technology, specifically, to a disc runout detection device. Background Technology

[0002] In many industrial sectors such as machinery manufacturing, automobiles, and aerospace, the positional accuracy and runout of the disk center of rotating components have a crucial impact on the operational stability, reliability, and service life of equipment. For example, in the manufacturing of crankshafts for automobile engines and the assembly of turbine disks for aircraft engines, if the runout error of the disk center exceeds the allowable range, it will cause severe vibration and noise during equipment operation, and may even lead to serious mechanical failures.

[0003] Currently available methods for detecting and controlling the runout of rotating disks have many shortcomings. Traditional detection methods are cumbersome, inefficient, and their measurement accuracy is insufficient to meet the increasingly demanding requirements of industrial production. Furthermore, there is a lack of a universal and efficient device for detecting and adjusting the runout of rotating disks of different specifications and types. In addition, the measuring sensor needs to be fixed to the bracket before use. This process involves manual support and bolt fixing. Since the mounting hole of the bracket is larger than the diameter of the measuring sensor, it is easy to cause the position of the measuring sensor to deviate after installation. Moreover, the measuring sensor cannot make stable contact with the workpiece surface, which reduces the accuracy of the measurement results. Utility Model Content

[0004] The purpose of this invention is to provide a disc runout detection device to solve the problems mentioned in the background art.

[0005] Before using the measuring sensor, it needs to be fixed to the bracket. This process is done by manually supporting and fixing it with bolts. Since the mounting hole of the bracket is larger than the diameter of the measuring sensor, the position of the measuring sensor after installation is prone to deviation. As a result, the measuring sensor cannot make stable contact with the workpiece surface, which reduces the accuracy of the measurement results.

[0006] To achieve the above objectives, this utility model provides a disc runout detection device, including a rotating spindle. A detection calibration rod is fixedly connected to the side wall of the rotating spindle. A sensor sensing bracket is fixedly connected to the end of the detection calibration rod. An installation hole is opened on the inner wall of the sensor sensing bracket on the side away from the detection calibration rod. An auxiliary pre-fixing mechanism is provided on the outer wall of the sensor sensing bracket on one side. The auxiliary pre-fixing mechanism includes four upright plates that are evenly fixedly connected to the outer wall of the sensor sensing bracket in a ring orientation. A square groove is opened on the inner wall of the top of each of the four upright plates. A support block is slidably connected inside each of the four square grooves. A limit block is fixedly connected to the top of each of the four support blocks on the side away from the installation hole. An elastic element is fixedly connected between the limit block and the side wall of the upright plate. A rubber clamping plate is fixedly connected to one end of each of the four support blocks located at the installation hole. The inner contour shape of each of the four rubber clamping plates is arc-shaped, and the inner contour surface of each of the four rubber clamping plates is provided with anti-slip texture.

[0007] The support block resets and, together with the rubber clamping plate, clamps the measuring sensor, achieving pre-fixation. This allows the measuring sensor to be pre-fixed inside the mounting hole. Compared to manual support, this method ensures the measuring sensor is centered within the mounting hole, facilitating subsequent fastening with bolts.

[0008] As a further improvement to this technical solution, an upper sliding plate is fixedly connected to the inner sidewall of the top of the square groove, and a lower sliding plate is fixedly connected to the inner sidewall of the bottom of the square groove. The end of the upper sliding plate near the limiting block is designed with an inclined surface, and the surface of the lower sliding plate is designed with an inclined surface. The support block slides in cooperation with the inclined surfaces of the upper and lower sliding plates. The end of the upper sliding plate away from the inclined surface is designed with a staggered layer. A groove is provided on the inner sidewall of the top of the support block, and the support block engages with the staggered layer of the upper sliding plate through the groove.

[0009] Furthermore, when the support block generates centrifugal force under the rotation of the sensor sensing bracket, after the rubber clamping plate pre-fixes the measuring sensor, the groove engages with the staggered end of the upper sliding plate, forming a stable connection, thereby ensuring that the support block will not shift during rotation and improving stability.

[0010] As a further improvement to this technical solution, the sensor sensing bracket sidewall is rotatably connected with a fastening bolt, the bottom end of the fastening bolt is located inside the mounting hole, and a buffer pad is fixedly connected to the bottom of the fastening bolt, the surface area of ​​the buffer pad being larger than the bottom surface area of ​​the fastening bolt.

[0011] The buffer pad acts as a buffer between the bottom of the fastening bolt and the measuring sensor, preventing direct contact with the measuring sensor. After the fastening bolt is tightened, the fastening bolt presses down on the measuring sensor with the buffer pad, ensuring that the measuring sensor is firmly fixed inside the mounting hole.

[0012] As a further improvement to this technical solution, four connecting rods are uniformly fixedly connected to the outer wall of the sensor sensing bracket on the side away from the auxiliary pre-fixing mechanism in a ring orientation. Guide blocks are fixedly connected to the ends of the four connecting rods, and the surfaces of the four guide blocks on the side of the mounting hole are all designed with an inclined surface.

[0013] The inclined surface contacts and slides against the outer wall of the end of the measuring sensor, thus serving as a guide to prevent the measuring sensor from colliding with the side wall of the mounting hole opening when it cannot be accurately inserted once, thereby protecting the measuring sensor.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In this disc runout detection device, an auxiliary pre-fixing mechanism is set up. After the measuring sensor is inserted into place, the elastic element rebounds, causing the support block to reset and, together with the rubber clamping plate, clamp the measuring sensor, thus achieving the purpose of pre-fixing. This ensures that the measuring sensor is pre-fixed inside the mounting hole. Compared with manual support, the measuring sensor can be positioned in the center of the mounting hole, facilitating subsequent fastening with bolts. This ensures that the measuring sensor remains in stable contact with the workpiece surface during the rotation of the sensor sensing bracket, preventing displacement of the measuring sensor and improving the accuracy of the measurement results. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 A three-dimensional side view of the relevant components of the auxiliary pre-fixing mechanism of the utility model;

[0018] Figure 3 This is a three-dimensional structural cross-sectional view of the relevant components at the upright plate of the utility model.

[0019] Figure 4 This is a three-dimensional side view of the relevant components at the guide block of the utility model.

[0020] The meanings of the labels in the diagram are as follows:

[0021] 1. Rotary spindle; 2. Detection rod; 3. Sensor induction bracket; 31. Mounting hole; 32. Fastening bolt; 4. Auxiliary pre-fixing mechanism; 41. Vertical plate; 42. Square groove; 43. Support block; 44. Limiting block; 45. Elastic element; 46. Rubber clamping plate; 51. Upper sliding plate; 52. Lower sliding plate; 53. Groove; 6. Buffer pad; 71. Connecting rod; 72. Guide block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Example 1

[0025] Please see Figures 1-4 As shown, this embodiment provides a disc runout detection device, including a rotating spindle 1. A detection rod 2 is fixedly connected to the side wall of the rotating spindle 1, and a sensor sensing bracket 3 is fixedly connected to the end of the detection rod 2. The inner wall of the sensor sensing bracket 3 away from the detection rod 2 has a mounting hole 31. The rotating spindle 1 can withstand the centrifugal force of the workpiece and ensure stability. The sensor sensing bracket 3, in conjunction with the mounting hole 31, is used to install a measuring sensor, ensuring consistent contact between the sensor and the workpiece. By selecting a high-precision distance sensor or strain gauge, the displacement change of the workpiece can be monitored in real time. A data acquisition system (MES) is designed to display the measurement results in real time via a computer or other display device. The outer wall of one side of the sensor sensing bracket 3 is provided with... The auxiliary pre-fixing mechanism 4 includes four upright plates 41 that are uniformly fixed to the outer wall of the sensor sensing bracket 3 in a ring orientation. The inner wall of the top of each of the four upright plates 41 is provided with a square groove 42. A support block 43 is slidably connected inside each of the four square grooves 42. A limit block 44 is fixedly connected to the top of each of the four support blocks 43 on the side away from the mounting hole 31. An elastic element 45 is fixedly connected between the limit block 44 and the side wall of the upright plate 41. A rubber clamping plate 46 is fixedly connected to one end of each of the four support blocks 43 located at the mounting hole 31. The inner contour of each of the four rubber clamping plates 46 is arc-shaped to facilitate contact with the surface of the measuring sensor. The inner contour surface of each of the four rubber clamping plates 46 is provided with anti-slip texture to increase friction and prevent slippage.

[0026] When the measuring sensor is inserted into the mounting hole 31, it first contacts and synchronously pushes multiple rubber clamping plates 46, causing the support block 43 to slide within the square groove 42. Simultaneously, the limiting block 44 stretches the elastic element 45, which consists of a shell, spring, and limiting element. After the measuring sensor is inserted into place, the elastic element 45 rebounds, causing the support block 43 to reset and, together with the rubber clamping plates 46, clamp the measuring sensor, achieving pre-fixation. This pre-fixes the measuring sensor within the mounting hole 31. Compared to manual support, this method ensures the measuring sensor is centered within the mounting hole 31, facilitating subsequent fixing with the fastening bolts 32. This ensures the measuring sensor remains in stable contact with the workpiece surface during the rotation of the sensor sensing bracket 3, preventing sensor displacement and improving measurement accuracy.

[0027] An upper sliding plate 51 is fixedly connected to the inner wall of the top of the square groove 42, and a lower sliding plate 52 is fixedly connected to the inner wall of the bottom of the square groove 42. The end of the upper sliding plate 51 near the limiting block 44 is designed with a slope, and the surface of the lower sliding plate 52 is designed with a slope. The support block 43 slides in cooperation with the slopes of the upper sliding plate 51 and the lower sliding plate 52. When the support block 43 slides between the upper sliding plate 51 and the lower sliding plate 52, the outer wall of the support block 43 is simultaneously in contact with the slopes of the lower sliding plate 52 and the upper sliding plate 51, so that the support block 43 is in an inclined state inside the square groove 42. When the measuring sensor is inserted between multiple rubber clamping plates 46, the rubber clamping plates 46 will push the support block 43. The movable support block 43 slides upward inside the square groove 42. After being installed in place, the support block 43 resets under its own gravity, improving the clamping effect. The upper slide plate 51 has a staggered design at the end away from the inclined surface. The inner wall of the top of the support block 43 has a groove 53. The support block 43 is engaged with the staggered part of the upper slide plate 51 through the groove 53. When the support block 43 generates centrifugal force under the rotation of the sensor sensing bracket 3, after the rubber clamping plate 46 pre-fixes the measuring sensor, the groove 53 engages with the staggered end of the upper slide plate 51, forming a stable connection, thereby ensuring that the support block 43 will not be displaced during rotation and improving stability.

[0028] A fastening bolt 32 is rotatably connected to the side wall of the sensor sensing bracket 3. The bottom end of the fastening bolt 32 is located inside the mounting hole 31. A buffer pad 6 is fixedly connected to the bottom of the fastening bolt 32. The surface area of ​​the buffer pad 6 is larger than the bottom surface area of ​​the fastening bolt 32, which increases the buffer area and enhances the fixing effect. After the sensor for measurement is pre-fixed inside the mounting hole 31 by the auxiliary pre-fixing mechanism 4, the fastening bolt 32 is tightened with a tool, causing the fastening bolt 32 to rotate on the inner wall of the sensor sensing bracket 3. The bottom of the fastening bolt 32 gradually approaches the surface of the sensor for measurement. The buffer pad 6 can buffer the bottom of the fastening bolt 32 and the sensor for measurement, avoiding direct contact with the sensor for measurement. After the fastening bolt 32 is tightened in place, the fastening bolt 32 presses the sensor for measurement with the buffer pad 6, ensuring that the sensor for measurement is firmly fixed inside the mounting hole 31 and will not fall off or change position when the sensor sensing bracket 3 rotates, thus improving the accuracy of the jump measurement.

[0029] Four connecting rods 71 ​​are evenly fixedly connected in a ring shape on the outer wall of the sensor sensing bracket 3 away from the auxiliary pre-fixing mechanism 4. Each of the four connecting rods 71 ​​has a guide block 72 fixedly connected to its end. The surfaces of the four guide blocks 72 on the side of the mounting hole 31 are all designed with a bevel. When the measuring sensor is inserted into the mounting hole 31 through the opening of the mounting hole 31 on the side of the guide block 72, the multiple beveled guide blocks 72 contact and slide with the outer wall of the end of the measuring sensor through the bevel, thereby playing a guiding role and avoiding the measuring sensor from colliding with the side wall of the mounting hole 31 opening if it cannot be accurately inserted in one go, thus protecting the measuring sensor.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A disc runout detecting device comprising a rotating spindle (1), characterized in that: A detection rod (2) is fixedly connected to the side wall of the rotating spindle (1). A sensor sensing bracket (3) is fixedly connected to the end of the detection rod (2). An installation hole (31) is opened on the inner wall of the sensor sensing bracket (3) away from the detection rod (2). An auxiliary pre-fixing mechanism (4) is provided on the outer wall of the sensor sensing bracket (3). The auxiliary pre-fixing mechanism (4) includes four upright plates (41) that are evenly fixedly connected to the outer wall of the sensor sensing bracket (3) in a ring orientation. A square groove (42) is opened on the inner wall of the top of each of the four upright plates (41). A support block (43) is slidably connected inside each of the four square grooves (42). A limit block (44) is fixedly connected to the top of each of the four support blocks (43) away from the installation hole (31). An elastic element (45) is fixedly connected between the limit block (44) and the side wall of the upright plate (41). A rubber clamping plate (46) is fixedly connected to one end of each of the four support blocks (43) located at the installation hole (31).

2. The disc runout detection apparatus of claim 1, wherein: The inner contours of the four rubber clamping plates (46) are all arc-shaped, and the inner contour surfaces of the four rubber clamping plates (46) are all provided with anti-slip textures.

3. The disc runout detection apparatus of claim 1, wherein: The upper slide plate (51) is fixedly connected to the inner wall of the top of the square groove (42), and the lower slide plate (52) is fixedly connected to the inner wall of the bottom of the square groove (42). The upper slide plate (51) has a sloping design at the end near the limiting block (44), and the surface of the lower slide plate (52) has a sloping design. The support block (43) slides in cooperation with the sloping surfaces of the upper slide plate (51) and the lower slide plate (52).

4. The disc runout detection apparatus of claim 3, wherein: The upper slide plate (51) is designed with a staggered layer at the end away from the inclined surface. The inner wall of the top of the support block (43) is provided with a groove (53). The support block (43) is engaged with the staggered part of the upper slide plate (51) through the groove (53).

5. The disc runout detection apparatus of claim 1, wherein: The sensor sensing bracket (3) is rotatably connected to a fastening bolt (32) on its side wall, and the bottom end of the fastening bolt (32) is located inside the mounting hole (31).

6. The disc runout detection device according to claim 5, characterized in that: A buffer pad (6) is fixedly connected to the bottom of the fastening bolt (32), and the surface area of ​​the buffer pad (6) is greater than the bottom surface area of ​​the fastening bolt (32).

7. The disc runout detection apparatus of claim 1, wherein: The sensor sensing bracket (3) has four connecting rods (71) evenly fixedly connected in a ring orientation on the outer wall of the side away from the auxiliary pre-fixing mechanism (4). The ends of the four connecting rods (71) are all fixedly connected to guide blocks (72). The surfaces of the four guide blocks (72) on the side of the mounting hole (31) are all designed with bevels.

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