A gearbox housing bearing height detection device

Abstract

The present invention discloses a device for detecting the bearing height of a reduction gearbox housing, and relates to the technical field of shaft height detection. Specifically, it comprises a driving component and a detection component. The driving component is used to support the reduction gearbox housing, and the driving component comprises a spline shaft that moves into and meshes with the internal gear of the reduction gearbox housing, and the spline shaft can drive the shaft body of the reduction gearbox to be in a rotating state; the measuring component is used to approach and detect the shaft height of the reduction gearbox housing, and the measuring component comprises a measuring plate, a clamping member, and at least one measuring member, and the clamping member can hold the reduction gearbox housing tightly; the measuring member is connected to the measuring plate, and the measuring member can clamp and detect the bearing height in the reduction gearbox housing. The measuring member precisely extends into the outer ring of the bearing at the end of the shaft body of the reduction gearbox, so that the outer ring of the bearing is in a clamped state, and the inner ring of the bearing rotates with the shaft body. This design effectively avoids the shaft height measurement error caused by improper bearing assembly, thereby significantly improving the measurement accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of shaft height detection, and in particular to a device for detecting the height of a bearing position of a reduction gearbox housing. Background Art

[0002] The reducer housing is an important part of the reducer, and the fit between the housing's bearing seat and the bearing is crucial. In the reducer, the bearing usually bears a rotating load. Generally, the inner ring of the bearing has an interference fit with the rotating shaft, and the outer ring has a clearance or transition fit with the bearing seat. A device that can measure the height of the reducer housing bearing with high precision and high efficiency is needed to ensure the accuracy and reliability of the bearing assembly and improve production efficiency.

[0003] In the prior art, in order to improve the measurement accuracy of the bearing height of the reducer housing, the reducer housing is placed on a pallet, and the shaft height of the reducer is detected by a detection head that moves up and down, so that the position of the reducer housing is fixed. The detection head is then used to perform high-pressure tightening measurement on the shaft of the reducer to complete the shaft height detection of the reducer housing, thereby improving the convenience of detection.

[0004] However, in the above scheme, if the bearing of the reduction gearbox housing is not properly assembled, the bearing and the axis of the shaft body will be tilted, which will easily lead to obvious errors in the shaft height measurement. Summary of the invention

[0005] The main purpose of the present invention is to provide a reduction gearbox housing bearing seat height detection device, which aims to improve the accuracy of reduction gearbox housing bearing seat height measurement when the bearing is not properly assembled.

[0006] In order to achieve the above object, the present invention proposes a gearbox housing bearing height detection device, comprising: A driving assembly, which is used to support the reduction box housing, the driving assembly includes a spline shaft that moves into and meshes with the internal gear of the reduction box housing, and the rotating spline shaft can drive the shaft body of the reduction box to be in a rotating state; A measuring assembly, which is used to approach and detect the shaft height of a reduction gearbox housing, and the measuring assembly comprises: a measuring plate, which can be moved closer to or farther away from the drive assembly; A pressing piece connected to the measuring plate, wherein the pressing piece can hold the reduction gearbox housing tightly; At least one measuring piece is connected to the measuring plate, and the measuring piece can press and detect the height of the bearing seat in the reduction gearbox housing.

[0007] Furthermore, the driving assembly includes a base for supporting the reduction gearbox housing, a driving member connected to the base and movable toward the reduction gearbox housing, and the spline shaft is mounted on an output shaft of the driving member.

[0008] Furthermore, the driving member can move in a direction parallel to the plate surface of the base.

[0009] Furthermore, a fixed horizontal platform and a vertical platform are installed on the base, the horizontal platform can move parallel to the board surface of the base, the vertical platform moves perpendicular to the board surface of the base, and the driving member is fixed on the vertical platform.

[0010] Furthermore, the clamping member includes a fitting mechanism and a clamping mechanism connected to the measuring plate, the fitting mechanism is used to fit the processed surface of the reduction gearbox housing, and the clamping mechanism applies force to the reduction gearbox housing toward the fitting mechanism so that the reduction gearbox housing is clamped between the fitting mechanism and the clamping mechanism.

[0011] Furthermore, the measuring member includes a sleeve connected to the measuring plate, a sliding shaft slidably connected to the sleeve, and at least one displacement detecting member installed on the periphery of the sleeve. A pressure head is installed at one end of the sliding shaft, and the end face of the pressure head is adapted to the detection end of the displacement detecting member. When the pressure head presses the outer ring of the bearing of the reduction gearbox housing, the pressure head moves relative to the sleeve and presses the detection end of the displacement detecting member.

[0012] Furthermore, the detection member includes a pressure-sensitive member installed at an end of the sliding sleeve away from the pressure head, and a second elastic member is provided between the pressure-sensitive member and the end of the sliding shaft.

[0013] Furthermore, the measuring component comprises: An adjusting plate, arranged on a side of the measuring plate away from the measuring member; A first elastic member is mounted on a side wall of the measuring plate close to the adjusting plate and is slidably arranged with the adjusting plate; and The measuring cylinder is connected to the adjusting plate and obtains the pressure value when the measuring plate is under pressure.

[0014] Furthermore, it includes a second slide assembly, which is used to drive the calibration and zeroing disk to move to the bottom of the measuring assembly. The second slide assembly includes a mobile frame and a support column installed on the mobile frame, and the support column is used to carry and position the calibration and zeroing disk. The mobile frame drives the calibration and zeroing disk to move horizontally to the bottom of the measuring part.

[0015] Furthermore, a clearance groove for the end of the spline shaft is opened on one side of the movable frame.

[0016] The above technical solution has the following advantages: The present invention uses a driving assembly to drive the reduction box on the tray to move upward, and at the same time, the spline shaft can be inserted from the end of the reduction box and mesh with the gear in the reduction box. Under the rotation of the spline shaft, the shaft of the reduction box is in a rotating state, the clamping piece holds the reduction box housing tightly, and the measuring piece accurately extends into the outer ring of the bearing at the end of the reduction box shaft, so that the outer ring of the bearing is in a clamped state, while the inner ring of the bearing rotates with the shaft. This design effectively avoids the shaft height measurement error caused by improper bearing assembly, thereby significantly improving the measurement accuracy; The clamping measurement method of the present invention realizes full-degree-of-freedom constraint through rigid clamping, takes the machined surface of the reduction gearbox housing as the reference plane, ensures that the reduction gearbox housing is completely fixed during the detection process, eliminates the interference of force fluctuation on the measurement, reduces the angle error during measurement, and simultaneously keeps the reduction gearbox housing and the measurement reference relatively still, greatly reducing the measurement error caused by vibration. The clamping detection disperses the clamping force through large-area contact, reduces the pressure per unit area of ​​the working surface of the reduction gearbox housing, avoids surface damage, and prevents stress concentration from causing microcracks or fatigue damage. The present invention can directly measure the height of the bearing position through the detection piece when clamping.

[0017] The present invention adopts a dynamic testing method, which can detect potential problems that are difficult to find in static testing, such as micro-wear of bearings or loose assembly, and reduce wear caused by vibration and impact; and during the dynamic testing process, the lubricating oil can be better distributed on the entire bearing and shaft surface, and the measurement point can be quickly located through the rotation of the spline shaft, reducing the adjustment time before measurement; combined with the clamping method, the shaft displacement caused by inertia or vibration during the measurement process can be suppressed. This dynamic positioning method not only improves the measurement efficiency, but also reduces the errors caused by manual adjustment.

[0018] The present invention also introduces a second slide assembly for calibrating and zeroing the measuring assembly. After each measurement is completed, the second slide assembly can drive the calibration and cleaning disc to accurately move to the measuring assembly to fully calibrate and zero the measuring assembly. This process ensures that the measuring assembly is in the best state before each measurement, avoids the accumulation of measurement errors, and thus ensures high accuracy and consistency of the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is described in detail below with reference to specific embodiments and accompanying drawings, wherein: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a lateral structural schematic diagram of the present invention; Figure 3 It is a structural schematic diagram of the fuselage assembly of the present invention; Figure 4 It is a structural schematic diagram of the first slide assembly of the present invention; Figure 5 It is a structural schematic diagram of the lifting assembly of the present invention; Figure 6 It is a forward structural diagram of the lifting assembly of the present invention; Figure 7 It is a schematic diagram of the structure of the driving assembly of the present invention; Figure 8 It is a side structural diagram of the drive assembly of the present invention; Fig. 9 It is a forward structural diagram of the drive assembly of the present invention; Fig.10 It is a cross-sectional structural diagram of the drive assembly of the present invention; Fig.11 It is a structural schematic diagram of the second slide assembly of the present invention; Fig.12 It is a structural schematic diagram of the measuring component of the present invention; Fig.13 It is a forward structural diagram of the measuring assembly of the present invention; Fig.14 It is a cross-sectional structural diagram of the measuring piece of the present invention.

[0020] In the figure: 1. Body assembly; 11. Frame; 12. Base; 13. Blocking mechanism; 14. Feeding hole; 2. First slide assembly; 21. Fixed seat; 22. First telescopic mechanism; 23. Lifting frame; 24. Limit switch; 3. Measuring assembly; 31. Adjusting plate; 32. First elastic member; 33. Measuring plate; 34. Pressing member; 35. Measuring member; 351. Sliding sleeve; 352. Sliding shaft; 353. Guide shaft seat; 354. Second elastic member; 355. Pressure sensing member; 356. Displacement detecting member; 357. Gland; 358. Pressure head; 359. Bushing; 36. Probe member; 37. Measuring cylinder; 4. Second slide assembly; 41. Slide seat; 42. Moving frame; 43. Second telescopic mechanism; 44. Support column; 5. Driving assembly; 51. Base; 52. Third telescopic mechanism; 53. Horizontal moving platform; 54. Driving member; 55. Fourth telescopic mechanism; 56. Fifth telescopic mechanism; 57. Vertical moving platform; 58. Spline shaft; 59. Positioning column; 6. Lifting assembly; 61. Lower panel; 62. Upper panel; 63. Stop member; 64. Sixth telescopic mechanism. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the present invention and do not constitute a limitation to the present invention.

[0022] like Figure 1 , Figure 7 and Fig.12 As shown, a gearbox housing bearing height detection device includes a driving component 5 and a detection component. The driving component 5 is used to support the gearbox housing. The driving component 5 includes a spline shaft 58 that moves into and engages with the internal gear of the gearbox housing. The rotating spline shaft 58 can drive the shaft body of the gearbox to be in a rotating state; the measuring component 3 is used to approach and detect the shaft height of the gearbox housing. The measuring component 3 includes a measuring plate 33, a clamping piece 34 and at least one measuring piece 35. The measuring plate 33 can approach or move away from the driving component 5; the clamping piece 34 is connected to the measuring plate 33, and the clamping piece 34 can hold the gearbox housing tightly; the measuring piece 35 is connected to the measuring plate 33, and the measuring piece 35 can clamp and detect the bearing height in the gearbox housing.

[0023] Specifically, the spline shaft 58 can be operated by an external motor and a lifting platform to make the spline shaft 58 rise or fall by the lifting platform, or the spline shaft 58 can be driven to fall or rise by the hanger, that is, the spline shaft 58 can be moved in from the upper side or the lower side of the reduction gearbox housing. In the present application, it is preferred that the spline shaft 58 is moved in from the bottom of the reduction gearbox housing, and the motor drives the spline shaft 58 to rotate. After the spline shaft 58 is moved in from the reduction gearbox housing, the rotating spline shaft 58 drives the shaft body in the entire reduction gearbox housing to rotate, which can simulate the reduction gearbox in the motion process. Then the measuring plate 33 approaches the reduction gearbox housing, and the clamping piece 34 holds the reduction gearbox housing tightly to separate the reduction gearbox housing from the drive assembly 5, which can ensure the measurement accuracy. Finally, the measuring piece 35 is gradually pressed against the bearing position of the reduction gearbox housing, so that the outer ring of the bearing is pressed and fixed to the measuring piece 35, and the inner ring of the bearing rotates with the shaft body of the reduction gearbox, so that the bearing assembly is more uniform, avoiding the bearing position measurement error caused by the bearing assembly error, and ensuring the measurement accuracy of the bearing position height.

[0024] As an embodiment of the present application, the present application preferably installs the driving component 5 and the detection component on the fuselage component 1, and the fuselage component 1 includes a connected frame 11 and a base 12, the frame 11 and the base 12 are assembled and connected or welded, the base 12 is supported by a number of shock-absorbing pads, the frame 11 is perpendicular to the ground, the driving component 5 and the detection component are respectively installed on the same side of the frame 11, and slide through slide rails. Preferably, the detection component is located directly above the driving component 5, and the reduction gear housing is supported above the driving component 5, and the bearing position height is measured as the detection component moves downward. A blocking mechanism 13 is also installed on the frame 11, which is used to limit the extreme position of the driving component 5 and / or the detection component, and to stop the driving component 5 and / or the detection component.

[0025] The driving assembly 5 includes a base 51 for supporting the housing of the reduction box, a driving member 54 connected to the base 51 and movable toward the housing of the reduction box, and a spline shaft 58 mounted on the output shaft of the driving member 54. A positioning column 59 is mounted above the base 51, and the conical convex point above the positioning column 59 is used to position the housing of the reduction box, and align the end hole of the housing of the reduction box with the spline shaft 58 directly above. The driving member 54 can move toward the housing of the reduction box, and drive the spline shaft 58 connected to it to move into the housing of the reduction box. The driving member 54 drives the spline shaft 58 to rotate, so that the spline shaft 58 drives the gears in the housing of the reduction box to rotate, thereby simulating the reduction box in a working state; the driving member 54 can adopt a motor or a motor and a reducer, and only needs to drive the spline shaft 58 to rotate.

[0026] like Figure 7 and Figure 8 As shown, in order to improve the alignment effect between the spline shaft 58 and the reduction gear housing, the driving member 54 can move in a direction parallel to the plate surface of the base 51. The driving member 54 can move in the form of a linear slide, a ball screw or a linear motor. Specifically, the linear slide, the ball screw or the linear motor is installed along the plate surface direction of the base 51 and perpendicular to the plate surface direction of the base 51, so that the driving member 54 can horizontally adjust the spline shaft 58 to ensure that the spline shaft 58 can be aligned with the reduction gear housing, and move into the reduction gear housing along the plate surface direction perpendicular to the base 51 to ensure that the spline shaft 58 can be fine-tuned with the gears in the reduction gear housing.

[0027] like Figure 3 , Figures 7 to 10 As shown, a fixed horizontal platform 53 and a vertical platform 57 are installed on the base 51. The horizontal platform 53 can move parallel to the board surface of the base 51, and the vertical platform 57 moves perpendicular to the board surface of the base 51. The driving member 54 is fixed on the vertical platform 57. The horizontal platform 53 is connected to the base 51 through a slide rail, and a third telescopic mechanism 52 is installed on the base 51. The output end of the third telescopic mechanism 52 is connected to the horizontal platform 53, which drives the horizontal platform 53 to move forward and backward relative to the frame 11. Figure 1 As shown, a vertical moving platform 57 is installed on the horizontal moving platform 53 through a slide rail, and a fifth telescopic mechanism 56 is installed below the base 51. The output end of the fifth telescopic mechanism 56 is fixed to the vertical moving platform 57. The fifth telescopic mechanism 56 drives the vertical moving platform 57, the driving member 54 and the spline shaft 58 to rise and fall, so that the spline shaft 58 can be moved into or out of the reduction gearbox housing.

[0028] like Figure 1 and Figure 7As shown, in order to improve the lifting stability of the driving assembly 5, a fourth telescopic mechanism 55 is installed on the frame 11. The output end of the fourth telescopic mechanism 55 is fixed to the base 51 through an angle steel, which can drive the base 51 to be lifted and lowered along the frame 11. A rib plate and a vertical plate that fits the frame 11 are also provided at one end of the base 51 close to the frame 11. The vertical plate is connected to the angle steel, and the vertical plate slides along the guide rail on the frame 11, thereby improving the overall structural strength.

[0029] like Figure 1 , Fig.12 and Fig.13 As shown, the clamping member 34 includes a fitting mechanism and a clamping mechanism connected to the measuring plate 33. The fitting mechanism is used to fit the machined surface of the reduction gearbox housing. The clamping mechanism applies force to the reduction gearbox housing toward the fitting mechanism so that the reduction gearbox housing is clamped between the fitting mechanism and the clamping mechanism. Among them, the fitting mechanism and the clamping mechanism are both installed on the measuring plate 33, and the clamping mechanism can also be installed on the fitting mechanism. A plurality of fitting mechanisms and clamping mechanisms are set, that is, they are evenly distributed around the processing surface of the reduction gearbox housing. In the present application, the fitting mechanism can be in the form of a block, a frame or a rectangular frame. In the present application, a rectangular frame is preferably used. The end faces of the rectangular frame are all on the same reference plane and fit the processing surface of the reduction gearbox housing. The clamping mechanism is installed on one side of the rectangular frame. The clamping mechanism can be in the form of a cylinder, an oil cylinder or an electric cylinder, and a pressure block is installed at the output end of the cylinder, the oil cylinder or the electric cylinder. For example, the present application preferably uses a cylinder, and the pressure block at the end is driven to move by the cylinder, so that the pressure block and the rectangular frame work together to clamp the reduction gearbox housing in place, and the subsequent reduction gearbox housing shaft height measurement can be performed.

[0030] like Figure 1 , Figure 12 to Figure 14As shown, the measuring member 35 includes a sleeve 351 connected to the measuring plate 33, a sliding shaft 352 slidably connected to the sleeve 351, and at least one displacement detecting member 356 installed on the periphery of the sleeve 351. A pressure head 358 is installed at one end of the sliding shaft 352, and the end face of the pressure head 358 is adapted to the detection end of the displacement detecting member 356. When the pressure head 358 presses the outer ring of the bearing of the reduction gearbox housing, the pressure head 358 moves relative to the sleeve 351 and presses the detection end of the displacement detecting member 356. Among them, the sliding sleeve 351 is installed perpendicular to the measuring plate 33, the sliding shaft 352 and the sliding sleeve 351 slide relatively, and the pressure head 358 and the sliding shaft 352 move together. When the sliding shaft 352 moves toward the reduction box, the pressure head 358 presses the outer ring of the bearing of the shaft body. As the spline shaft 58 drives the shaft body in the reduction box to be in motion, the displaced pressure head 358 contacts the displacement detection member 356 outside the sliding sleeve 351, so that the displacement detection member 356 makes an accurate measurement of the moving distance of the pressure head 358. The present application preferably adopts three displacement detection members 356, which cooperate with the rotating shaft body for measurement to obtain the average value of the three displacement detection members 356, which can greatly improve the height measurement result of the bearing position; in addition, the displacement detection member 356 in the measuring member 35 can also be replaced by a laser ranging sensor, which determines the distance by emitting a laser beam and measuring the time or angle of the reflected light.

[0031] Specifically, a pressure cover 357 can be detachably installed between the sliding shaft 352 and the pressure head 358. Damping material or air spring is also added between the sliding shaft 352 and the pressure head 358 to suppress the sliding shaft 352 from being interfered by high-frequency vibration signals when moving. The pressure cover 357 connects the pressure head 358 and the sliding shaft 352 together, and when the pressure cover 357 rises, its edge portion can hinder the inner wall of the sliding sleeve 351 to avoid excessive extension and contraction of the sliding shaft 352. The contact end of the pressure cover 357 and the sliding shaft 352 can adopt soft contact to improve the service life.

[0032] like Figure 12 to Figure 14As shown, the detection member includes a pressure-sensitive member 355 installed at one end of the sliding sleeve 351 away from the pressure head 358, and a second elastic member 354 is provided between the pressure-sensitive member 355 and the end of the sliding shaft 352. The pressure-sensitive member 355 can be directly installed at the end of the sliding sleeve 351, and can also be directly installed on the measuring plate 33. When the pressure head 358 contacts the outer ring of the bearing at the end of the shaft body, the sliding shaft 352 will squeeze the second elastic member 354, so that the force of the second elastic member 354 acts on the pressure-sensitive member 355. The pressure-sensitive member 355 can detect the pressing force at this time to ensure that the pressing force is within a preset range. Specifically, the pressure-sensitive member 355 can adopt commercially available pressure sensors with different measuring ranges, such as the Tianmu pressure sensor with model NS-TH17A-10KG-24-V2-0-L. The second elastic member 354 Springs, shrapnel, air bags, etc. can be used. The present application preferably uses a rectangular spring. A guide shaft seat 353 is installed at one end of the sliding shaft 352 close to the pressure-sensitive part 355, and the rectangular spring is installed between the guide shaft seat 353 and the pressure-sensitive part 355. The rectangular spring can play a buffering role and can also drive the sliding shaft 352 to reset, so that the sliding shaft 352 drives the pressure head 358 to move to the original state, which is convenient for subsequent measurement. The sliding sleeve 351 is located on the outside of the pressure head 358 and is also provided with a shaft sleeve 359. The shaft sleeve 359 can be integrally formed with the sliding sleeve 351, or it can be welded or bolted to the end of the sliding sleeve 351. The shaft sleeve 359 can limit the edge of the pressure head 358 to improve the stability of the pressure head 358 during the lifting process. At the same time, the shaft sleeve 359 is wrapped around the outside of the bearing to prevent the bearing from shifting due to pressing, thereby affecting the measurement accuracy.

[0033] like Fig.12 and Fig.13 As shown, the measuring assembly 3 includes an adjustment plate 31, a first elastic member 32 and a measuring cylinder 37. The adjustment plate 31 is arranged on a side of the measuring plate 33 away from the measuring member 35. The first elastic member 32 is installed on a side wall of the measuring plate 33 close to the adjustment plate 31 and is slidably arranged with the adjustment plate 31. The measuring cylinder 37 is connected to the adjustment plate 31 and obtains the pressure value when the measuring plate 33 is pressed. Among them, the first elastic member 32 includes a guide column and a spring outside the guide column. The measuring plate 33 is restricted by the first elastic member 32 and can approach or move away from the adjustment plate 31. The adjusting plate 31 is also provided with a probe member 36. The probe member 36 is fixed to the end of the guide column that passes through the adjustment plate 31. The probe member 36 is polygonal, elliptical or square, and the other side thereof is fixed to the first slide assembly 2. When the first slide assembly 2 is lifted or lowered, it drives the measuring plate 33 to lift or lower through the probe member 36 and the guide column, and squeezes the spring outside the guide column. The output end of the measuring cylinder 37 measures the pressing force through the pressure sensor, so as to judge whether the pressure exceeds the threshold value to avoid damage.

[0034] like Figure 1 and Figure 4As shown, the first slide assembly 2 includes a fixed seat 21 installed on the frame 11, a lifting frame 23 that slides and rises along the fixed seat 21, and a first telescopic mechanism 22 installed on the top of the fixed seat 21. The output end of the first telescopic mechanism 22 is connected to the lifting frame 23, and drives the lifting frame 23 to achieve height adjustment. A limit switch 24 is also installed on the fixed seat 21 for detecting the limit position of the movement of the lifting frame 23 to facilitate the opening or closing of the first telescopic mechanism 22. The lifting frame 23 is connected to the fixed seat 21 through a guide rail. The probe piece 36 and the measuring cylinder 37 are both fixed to the lifting frame 23 to obtain the pressing force between the measuring plate 33 and the adjusting plate 31 through the measuring cylinder 37. When the measurement is completed, the spring drives the adjusting plate 31 to press against the edge of the probe piece 36 through its own elastic force, and the pressure detected by the measuring cylinder 37 gradually decreases.

[0035] like Figure 1 , Figure 2 and Fig.11 As shown, the present application includes a second slide assembly 4, which is used to drive the calibration and zeroing disk to move to the bottom of the measuring assembly 3. A feeding hole 14 is opened in the middle of the frame 11, and the calibration and zeroing disk moves in or out from the feeding hole 14. The second slide assembly 4 includes a moving frame 42 and a support column 44 installed on the moving frame 42. The support column 44 is used to carry and position the calibration and zeroing disk. The moving frame 42 drives the calibration and zeroing disk to move horizontally to the bottom of the measuring piece 35. Among them, the second slide assembly 4 also includes a slide seat 41 installed on the frame 11, the slide seat 41 is slidably connected to the mobile frame 42 through a guide rail, and a second telescopic mechanism 43 is installed on the slide seat 41, and the output end of the second telescopic mechanism 43 is connected to the mobile frame 42, and the mobile frame 42 is driven to move horizontally by the second telescopic mechanism 43, so that the support column 44 moves to the bottom of the measuring component 3, and the top of several support columns 44 can be clamped with a calibration zeroing disk. After the shaft height of each reducer is measured, it is necessary to use the calibration zeroing disk to perform a zeroing operation to ensure that the subsequent shaft height measurement of the reducer is more accurate and avoid the cumulative error of the reducer housing after multiple measurements.

[0036] like Fig.11 As shown, a clearance groove at the end of the spline shaft 58 is opened on one side of the movable frame 42. When the movable frame 42 drives the calibration and zeroing disk to move to the bottom of the measuring component 3, the clearance groove on the movable frame 42 can avoid interference with the spline shaft 58. The top end of the spline shaft 58 also supports the movable frame 42 at the clearance groove, thereby preventing the movable frame 42 from warping at one end due to the excessive length of the guide rail.

[0037] When the measuring component 3 needs to be calibrated and reset, the moving frame 42 drives the calibration and reset disk to move to the bottom of the measuring component 3, and the lifting frame 23 drives the clamping piece 34 and the measuring piece 35 to approach the calibration and reset disk. The fitting mechanism of the clamping piece 34 is positioned and fitted on the working surface of the calibration and reset disk, and the clamping mechanism holds the calibration and reset disk tightly, so that the calibration and reset disk is similar to the reduction gear box housing, and then the pressure head 358 extends into the calibration and reset disk to calibrate the entire measuring piece 35; after the calibration is completed, the clamping mechanism releases the calibration and reset disk, so that the calibration and reset disk falls on the support column 44, and then the second telescopic mechanism 43 drives the moving frame 42 to retract, and the calibration operation is completed; wherein, the calibration and reset disk is to determine the reference plane of the displacement detection piece 356, that is, the zero position, and then the shaft height of the reduction gear box is detected to ensure that the detected shaft height is based on the height of the reference plane to ensure the accuracy of each detection.

[0038] like Figure 1 , Figure 5 and Figure 6 As shown, the present application also includes a lifting assembly 6, which is used to stop the pallet and lift the pallet into position to facilitate the positioning of the reduction gearbox on the pallet. Specifically, the lifting assembly 6 includes a lower panel 61 and an upper panel 62. A sixth telescopic mechanism 64 is arranged between the lower panel 61 and the upper panel 62. The output end of the sixth telescopic mechanism 64 drives the upper panel 62 to lift so as to adjust the distance between the upper panel 62 and the lower panel 61. A stop member 63 is also installed on the lower panel 61. The stop member 63 can be controlled by a two-position electric control valve of the stop cylinder F1730-25-35-SH. When the pallet moves to the lifting assembly 6, the stop member 63 works to stop the movement of the pallet. Then the upper panel 62 rises, and the pallet is positioned and lifted by the positioning columns 59 on all sides to complete the pre-positioning of the pallet and the reduction gearbox assembled thereon.

[0039] When the present application is working, the pallet drives the reduction gearbox to move to the lifting assembly 6, the stopper 63 of the lifting assembly 6 blocks the pallet, and drives the upper panel 62 to position and lift the pallet through the sixth telescopic mechanism 64, so that the reduction gearbox on the pallet is positioned; secondly, the base 51 of the driving assembly 5 rises; the first telescopic mechanism 22 drives the lifting frame 23 to move downward, and the lifting frame 23 drives the measuring assembly 3 to move above the reduction gearbox housing, and the clamping member 34 holds the periphery of the reduction gearbox tightly; the pressure head 358 of the measuring member 35 presses the outer ring of the bearing inside the reduction gearbox, and the lifting frame 23 moves downward. The output shaft of the measuring cylinder 37 is extended, the height of the clamping member 34 and the measuring member 35 are finely adjusted, and the position of the spline shaft 58 is adjusted so that the spline shaft 58 can extend from one end of the reduction gearbox housing and engage with the gear inside the reduction gearbox housing. The driving member 54 drives the spline shaft 58 to rotate, so that the reduction gearbox is in working state; the pressure detected by the pressure-sensitive member 355 meets the preset requirements, and after a period of measurement, the clamping member 34 releases the reduction gearbox, the lifting frame 23 moves up, and the pressure head 358 is away from the reduction gearbox shaft body, and the shaft height measurement of the reduction gearbox is completed.

[0040] When the shaft height detection of the reduction gearbox is completed, the base 51 of the driving assembly 5 moves downward to move the spline shaft 58 out of the reduction gearbox housing, and then the tray drives the reduction gearbox to move to the subsequent process, and the second slide assembly 4 drives the correction and cleaning disk to move to the bottom of the measuring assembly 3. That is, in the process of the tray moving to the lifting assembly 6, the correction and cleaning disk calibrates and cleans the measuring part 35 to avoid error accumulation.

[0041] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A gearbox housing bearing height detection device, characterized in that: include: A drive assembly (5) comprising a spline shaft (58) which moves into and engages a gear inside the reduction gear housing; The measuring assembly (3) is used to approach and detect the shaft height of the reduction gearbox housing, and comprises: A measuring plate (33) which can be moved closer to or further away from the drive assembly (5); A clamping member (34) connected to the measuring plate (33), the clamping member (34) being capable of clamping the reduction gearbox housing; At least one measuring piece (35) is connected to the measuring plate (33); when the pressing piece (34) holds the reduction gearbox housing tightly, the measuring piece (35) presses and detects the height of the bearing in the reduction gearbox housing.

2. The gearbox housing bearing height detection device according to claim 1, characterized in that: The driving assembly (5) comprises a base (51) for supporting a reduction gearbox housing, a driving member (54) connected to the base (51) and movable toward the reduction gearbox housing, and a spline shaft (58) mounted on an output shaft of the driving member (54).

3. The gearbox housing bearing height detection device according to claim 2, characterized in that: The driving member (54) is movable in a direction parallel to the plate surface of the base (51).

4. The gearbox housing bearing height detection device according to claim 3, characterized in that: A horizontal moving platform (53) and a vertical moving platform (57) are fixedly mounted on the base (51); the horizontal moving platform (53) can move in a direction parallel to the plate surface of the base (51); the vertical moving platform (57) can move in a direction perpendicular to the plate surface of the base (51); and the driving member (54) is fixed on the vertical moving platform (57).

5. The gearbox housing bearing height detection device according to claim 1, characterized in that: The pressing member (34) comprises a fitting mechanism and a pressing mechanism connected to the measuring plate (33), wherein the fitting mechanism is used to fit the machined surface of the reduction gearbox housing, and the pressing mechanism applies force to the reduction gearbox housing toward the fitting mechanism so that the reduction gearbox housing is tightly held between the fitting mechanism and the pressing mechanism.

6. The gearbox housing bearing height detection device according to claim 1, characterized in that: The measuring member (35) comprises a sliding sleeve (351) connected to the measuring plate (33), a sliding shaft (352) slidably connected to the sliding sleeve (351), and at least one displacement detecting member (356) mounted on the periphery of the sliding sleeve (351); a pressing head (358) is mounted on one end of the sliding shaft (352); an end surface of the pressing head (358) is adapted to fit the detection end of the displacement detecting member (356); when the pressing head (358) presses against the bearing outer ring of the reduction gearbox housing, the pressing head (358) moves relative to the sliding sleeve (351) and presses the detection end of the displacement detecting member (356).

7. The gearbox housing bearing height detection device according to claim 6, characterized in that: The detection member comprises a pressure-sensitive member (355) mounted on an end of the sliding sleeve (351) away from the pressure head (358), and a second elastic member (354) is provided between the pressure-sensitive member (355) and the end of the sliding shaft (352).

8. The gearbox housing bearing height detection device according to claim 1, 6 or 7, characterized in that: The measurement assembly (3) includes: An adjustment plate (31) is arranged on a side of the measuring plate (33) away from the measuring member (35); A first elastic member (32) is mounted on a side wall of the measuring plate (33) close to the adjusting plate (31) and is slidably arranged with the adjusting plate (31); and The measuring cylinder (37) is connected to the adjusting plate (31) and obtains the pressure value when the measuring plate (33) is pressurized.

9. The gearbox housing bearing height detection device according to claim 1, characterized in that: The second slide assembly (4) is used to drive the calibration zeroing disk to move to the bottom of the measuring assembly (3). The second slide assembly (4) includes a moving frame (42) and a support column (44) mounted on the moving frame (42). The support column (44) is used to carry and position the calibration zeroing disk. The moving frame (42) drives the calibration zeroing disk to move horizontally to the bottom of the measuring piece (35).

10. The gearbox housing bearing height detection device according to claim 9, characterized in that: One side of the movable frame (42) is provided with a clearance groove for the end of the spline shaft (58).

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