Gear assembly full-automatic correction device and correction method thereof

Abstract

The invention belongs to the technical field of gear machining, and particularly discloses a full-automatic correction device for a gear assembly and a correction method of the full-automatic correction device for the gear assembly. The rack is provided with a jacking correction system used for correcting a gear assembly, a positioning system used for fixing the gear assembly, a rotating system used for driving the gear assembly to rotate, a measuring system used for measuring the jerk value of the gear assembly and a central control system used for controlling automatic correction, and the positioning system is used for fixing the gear assembly. The rotating system drives the gear assembly to rotate, the measuring system measures the jerk value of the gear assembly, and the central control system controls the jacking correction system to conduct extrusion correction on the gear assembly according to the jerk value, so that full-automatic correction of the gear assembly is achieved, the correction efficiency and precision are improved, and the difficulty and errors of manual operation are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of gear processing, and in particular relates to a gear assembly full-automatic correction device and a correction method thereof. Background Art

[0002] At present, the deformation of the gear assembly in the fixed-axis gearbox of domestic wheel loaders after welding is basically corrected by traditional process methods: the gear assembly is placed on a V-block and the upper end is pressed with a press. This makes it impossible to grasp the size of the applied force, the qualified rate of workpieces is low, the deformation cannot be measured on the equipment, and the efficiency is low.

[0003] Another correction method is to manually correct it using a gear assembly correction press: The gear assembly positioning clamping device consists of a laterally movable slider assembly, an inner hole positioning system, a guide cylinder connected to the base, and four rollers. The correction device is connected to the base through a clamping block, a fastener, and a hydraulic cylinder pushes the clamping block through electrical control. The correction method is to measure the deformation online, apply pressure according to the deformation amount, squeeze the gear assembly, and hold the manual control button for a certain period of time to produce plastic deformation to achieve the purpose of correction.

[0004] The existing technology cannot guarantee the runout requirements of the clutch housing relative to the inner hole. When calibrating the clutch housing, the inner hole is not used for positioning. Although some are positioned with the inner hole, when pressing the clutch housing, the positioning inner hole base can move with it, and only the clutch housing itself ellipse is corrected. Manually reading the runout table data and calculating the runout amount based on the data is prone to calculation errors that lead to unqualified runout. Manually turning the workpiece, manually pressing the cylinder push button, and manually controlling the pressure application time cannot ensure the consistency of the extrusion time. There is a situation where the extrusion is too small and cannot be corrected, or the extrusion is too large and deformed and needs multiple corrections. At the same time, there is a safety hazard of people being squeezed. Summary of the invention

[0005] In view of the problem that the accuracy and efficiency of manual correction of gear assemblies in the prior art need to be improved, a fully automatic correction device for a gear assembly and a correction method thereof are proposed. The present invention provides the following technical solutions: A fully automatic correction device for a gear assembly comprises a frame, on which are provided a top pressure correction system for correcting the gear assembly, a positioning system for fixing the gear assembly, a rotation system for driving the gear assembly to rotate, a measuring system for measuring the runout of the gear assembly, and a central control system for controlling automatic correction. The positioning system fixes the gear assembly, the rotation system drives the gear assembly to rotate, the measuring system measures the runout of the gear assembly, and the central control system controls the top pressure correction system to perform extrusion correction on the gear assembly according to the runout.

[0006] Preferably, the positioning system comprises a chuck, a support tube is detachably connected in the middle of the chuck, claws are arranged at equal intervals on the circumference of the support tube, and a positioning shaft for connecting the gear assembly is coaxially inserted on the support tube.

[0007] Preferably, a transmission cylinder is connected to the lower part of the chuck, the rotating system includes a mounting frame, a rotating drive motor is installed on the mounting frame, the transmission cylinder is rotatably connected to the mounting frame through a bearing assembly, the rotating drive motor is drivingly connected to the transmission cylinder, and the lower side of the transmission cylinder is rotatably connected to an air-electric slip ring for connecting an air source and a power source.

[0008] Preferably, a secondary gear is fixedly mounted on the transmission cylinder, and the output end of the rotary drive motor is drivingly connected to a primary gear, and the primary gear is meshingly connected to the secondary gear.

[0009] Preferably, a slide rail is installed on the frame, the mounting frame is slidably connected to the slide rail, a transverse driving device is arranged on one side of the slide rail, and an output end of the transverse driving device is connected to the mounting frame.

[0010] Preferably, a mold changing positioning device is provided on one side of the mounting frame for supporting the mounting frame when changing molds, and the mold changing positioning device includes a lifting drive device and a step limit block, the lifting drive device is installed and fixed on the mounting frame and drives the step limit block, the step limit block is a horizontal progressive step, and the lifting drive device drives the step limit block to move up and down.

[0011] Preferably, the top pressure correction system includes a first fixed seat, a hydraulic station, a hydraulic cylinder, a guide seat, a first clamping block for extruding the gear assembly, a second fixed seat and a second clamping block, the first fixed seat and the second fixed seat are fixedly connected to the frame and are arranged on both sides of the positioning system, the hydraulic cylinder is fixed on the first fixed seat and connected to the hydraulic station, the output end of the hydraulic cylinder is driven and connected to the first clamping block after being guided by the guide seat, and the second clamping block is fixedly connected to the second fixed seat and is arranged opposite to the first clamping block.

[0012] The steps of the gear assembly correction method include: S1. Workpiece selection and installation preparation; S2, workpiece support and positioning movement; Position and clamp the corresponding workpiece through the positioning system; S3, workpiece rotation and runout data collection; The workpiece is rotated by the rotation system, while the runout data is collected by the measurement system; S4, runout curve analysis and compression correction; The central control system analyzes the runout data, adjusts the rotation speed and frequency of the rotating system, and adjusts the power of the top pressure correction system; S5, cyclic correction or release positioning; The measurement system collects the corrected runout data. If it meets the requirements, the calibration is ended and the positioning is released. Otherwise, step S4 is repeated.

[0013] Preferably, in step S1, the height of the step limit block is adjusted according to the specifications of the gear assembly, and whether it is in place is detected by an induction switch; in step S2, a positioning shaft of corresponding specifications is selected according to the specifications of the gear assembly, and the workpiece is installed on the positioning shaft.

[0014] Preferably, in step S2, the chuck drives the claws to clamp the workpiece, and detects whether it is clamped in place; after it is in place, the workpiece is driven to move horizontally as a whole through the transverse drive device, the workpiece contacts the push rod of the digital display PLC micrometer of the measuring system, and detects whether it is moved to the right in place; after it is detected that it is in place, the central control system allows the rotation system to start.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Through fully automated correction devices and precise data collection and analysis, efficient and high-precision correction of gear assemblies is achieved; 2. The design of the positioning system, rotation system and mold changing positioning device enables the device to quickly adapt to gear assemblies of different specifications, thus improving its application range and flexibility; 3. Through the precise control of the central control system and the application of various detection sensors, the automation and safety of the calibration process are ensured, reducing the difficulty and risk of manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the specific overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention removing the central control system; Figure 3 It is a partial structural schematic diagram of the present invention; Figure 4 It is a schematic diagram of a partial explosion structure of the present invention; In the accompanying drawings, 1, frame; 11, mounting platform; 12, bottom support plate; 2. Top pressure correction system; 21. First fixed seat; 22. Hydraulic station; 23. Hydraulic cylinder; 24. Guide seat; 25. Second fixed seat; 26. First pressing block; 27. Second pressing block; 3. Positioning system; 31. Chuck; 32. Claw; 33. Support cylinder; 34. Positioning shaft; 35. Transmission cylinder; 36. Fixing plate; 37. Connecting cylinder; 38. Connecting disk; 4. Rotation system; 41. Mounting frame; 411. Motor mounting top plate; 412. Motor mounting side plate; 413. Gear mounting plate; 414. Rotation fixed side plate; 415. Rotation fixed top plate; 416. Rotation fixed bottom plate; 42. Rotation drive motor; 43. Reducer; 44. Coupling; 451. Third bearing; 452. Fourth bearing; 453. Bushing; 46. Primary gear; 47. Secondary gear; 48. Bearing assembly; 481. First bearing; 482. Positioning and fixing seat; 483. Second bearing; 484. First bearing seat; 49. Gas-electric slip ring; 491. Gas-electric slip ring mounting seat; 492. Gas-electric slip ring mounting bottom plate; 410. Anti-rotation bolt; 5. Transverse drive device; 51. Slide rail; 6. Mold changing positioning device; 61. Lifting drive device; 62. Step limit block; 7. Measurement system; 71. Digital display PLC micrometer; 8. Central control system; 81. Touch screen; 82. Control cabinet; 9. Workpiece. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings of the present invention. The directional words mentioned in the following embodiments, such as "up", "down", "left" and "right", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.

[0018] like Figure 1-4 As shown, a fully automatic correction device for a gear assembly comprises a frame 1 and a central control system 8 for controlling automatic correction, a mounting platform 11 is installed on the upper part of the frame 1, a positioning hole for placing the gear assembly is provided on the mounting platform 11, a positioning system 3 for fixing the gear assembly is provided in the positioning hole, a top pressure correction system 2 for correcting the gear assembly and a measuring system 7 for measuring the runout of the gear assembly are respectively provided on the left and right sides of the positioning hole; a rotating system 4 for driving the gear assembly to rotate is provided on the lower side of the mounting platform 11, the positioning system 3 fixes the gear assembly, the rotating system 4 drives the gear assembly to rotate, the measuring system 7 measures the runout of the gear assembly, and the central control system 8 controls the top pressure correction system 2 to perform extrusion correction on the gear assembly according to the runout, thereby realizing fully automatic correction of the gear assembly, improving correction efficiency and accuracy, and reducing the difficulty and error of manual operation.

[0019] Furthermore, the positioning system 3 includes a chuck 31 , a support tube 33 is detachably connected in the middle of the chuck 31 , and claws 32 are evenly spaced around the support tube 33 . Specifically, the chuck 31 and the claws 32 are pneumatically operated.

[0020] Furthermore, a positioning shaft 34 for connecting the gear assembly is coaxially plugged onto the support cylinder 33, a transmission cylinder 35 is connected to the lower portion of the chuck 31, the rotating system 4 includes a mounting frame 41, a rotating drive motor 42 is mounted on the mounting frame 41, the transmission cylinder 35 is rotatably connected to the mounting frame 41 via a bearing assembly 48, the rotating drive motor 42 is drivingly connected to the transmission cylinder 35, and a gas-electric slip ring 49 for connecting an air source and a power source is rotatably connected to the lower side of the transmission cylinder 35, the gas-electric slip ring 49 remains stationary, and the positioning system 3 rotates, so that the rotating parts can continuously obtain the gas source and power supply during the rotation process, thereby ensuring the stable operation of the rotating system 4.

[0021] Furthermore, a secondary gear 47 is fixedly mounted on the transmission cylinder 35, and the output end of the rotation drive motor 42 is drivingly connected to a primary gear 46, and the primary gear 46 is meshingly connected with the secondary gear 47, so that the power transmission of the rotation system 4 is smoother and more accurate, thereby improving the accuracy and stability of the correction.

[0022] Specifically, the mounting frame 41 includes a rotating fixed side plate 414, and a rotating fixed top plate 415 and a rotating fixed bottom plate 416 connected at the upper and lower ends thereof. To further improve its stability, a first rib is connected between the lower side of the rotating fixed top plate 415 and the rotating fixed side plate 414, and a second rib is connected between the upper side of the rotating fixed bottom plate 416 and the rotating fixed side plate 414.

[0023] Specifically, the chuck 31 is connected to a fixing plate 36, a connecting cylinder 37 and a connecting disk 38, and the fixing plate 36, the connecting cylinder 37 and the connecting disk 38 are sequentially connected from top to bottom to form a cylindrical structure, the chuck 31 is installed through the fixing plate 36, and the secondary gear 47 is connected through the connecting disk 38, and the secondary gear 47 is connected to the connecting disk 38 by bolts; and the bearing assembly 48 includes a first bearing 481, a positioning fixing seat 482, a second bearing 483 and a first bearing seat 484, and the positioning fixing seat 482 is detachably connected to the rotating fixed top plate 415, and the first bearing 481 is installed and placed In the positioning fixing seat 482, the bearing seat is arranged at the lower side of the positioning fixing seat 482, the second bearing 483 is installed in the first bearing seat 484, the bearing seat is connected to the lower section of the positioning fixing seat 482, the transmission cylinder 35 is connected to the positioning fixing seat 482 and then connected to the gas-electric slip ring mounting seat 491, and the gas-electric slip ring 49 is connected to the gas-electric slip ring mounting seat 491 through the gas-electric slip ring mounting base 492; the mounting frame 41 is installed with an anti-rotation bolt 410, and the gas-electric slip ring 49 can be operably connected to the gas-electric slip ring 49, thereby limiting its rotation, so as to better maintain the connection of the gas source or power source.

[0024] Specifically, the mounting frame 41 also includes a motor mounting top plate 411 and a gear mounting plate 413, which are fixedly connected to the rotating fixed side plate 414, and the output end of the rotating drive motor 42 is also connected to a reducer 43, which is designed on the upper side of the rotating drive motor 42 and connected to the motor mounting top plate 411, and a third bearing 451 and a fourth bearing 452 are installed on the gear mounting plate 413 to improve the stability of the rotation, and a bushing 453 is connected to the rod portion of the first-stage gear 46, and the rod portion of the first-stage gear 46 passes through the third bearing 451 and the fourth bearing 452 and is connected to the coupling 44, and the reducer 43 is connected to the first-stage gear 46 through the coupling 44, and has high stability and load capacity; at the same time, a motor mounting side plate 412 is also connected between the motor mounting top plate 411 and the gear mounting plate 413 to further improve the structural strength.

[0025] Furthermore, a bottom support plate 12 is provided at the bottom of the frame 1, a slide rail 51 is installed on the bottom support plate 12, the mounting frame 41 is slidably connected to the slide rail 51, a transverse driving device 5 is provided on one side of the slide rail 51, and the output end of the transverse driving device 5 is connected to the mounting frame 41, so that the rotation system 4 can be flexibly moved as needed, which is convenient for cooperation with the measuring system 7 and the top pressure correction system 2, thereby improving the flexibility and efficiency of correction.

[0026] Furthermore, a mold changing positioning device 6 is provided on one side of the mounting frame 41 for supporting the mounting frame 41 during mold changing. The mold changing positioning device 6 includes a lifting drive device 61 and a step limit block 62. The lifting drive device 61 is installed and fixed on the mounting frame 41 and drives the step limit block 62. The step limit block 62 is a horizontal progressive step. The lifting drive device 61 drives the step limit block 62 up and down to move, so that the mounting frame 41 can be positioned quickly and accurately during the mold changing process, thereby improving the efficiency and safety of the mold changing.

[0027] Furthermore, the top pressure correction system 2 includes a first fixed seat 21, a second fixed seat 25, a hydraulic station 22, a hydraulic cylinder 23, a guide seat 24, a first clamping block 26 and a second clamping block 27 for extruding the gear assembly. The first fixed seat 21 and the second fixed seat 25 are fixedly connected to the frame 1 and are arranged on both sides of the positioning system 3. The hydraulic cylinder 23 is fixed on the first fixed seat 21 and connected to the hydraulic station 22. The output end of the hydraulic cylinder 23 is driven and connected to the first clamping block 26 after being guided by the guide seat 24. The second clamping block 27 is fixedly connected to the second fixed seat 25 and is arranged opposite to the first clamping block 26, so that the correction process is more stable and controllable, and high-precision correction of the gear assembly can be achieved.

[0028] Furthermore, the central control system 8 includes a touch screen 81 and a control cabinet 82, which are connected via a control line. The measuring system 7 mainly uses a digital display PLC micrometer 71. The control cabinet 82 is connected and communicates with the digital display PLC micrometer 71, the lifting drive device 61, the hydraulic station 22, and the rotating drive motor 42 via a control line, thereby controlling the coordinated operation of each device to form a fully automatic processing equipment.

[0029] The steps of the gear assembly correction method include: S1, workpiece 9 selection and installation preparation; According to the workpiece 9, the large outer diameter gear assembly or the small outer diameter gear assembly is selected through the touch screen 81. When the large outer diameter gear assembly is selected, the lifting drive device 61 drives the step limit block 62 to move downward, and the lifting drive device 61 detects in real time through the induction switch and gradually moves down to the position. According to the gear assembly model, the corresponding positioning shaft 34 is selected, and the workpiece 9 is installed on the positioning shaft 34.

[0030] Press the start calibration button on the touch screen 81. The control system first detects whether the device is in the initial state through the proximity switches and induction switches of each component. If not, it will be readjusted and the calibration will be performed under the premise of ensuring that each component is in the initial state.

[0031] S2, workpiece 9 is tightened and positioned; The corresponding workpiece 9 is positioned and clamped by the positioning system 3 to ensure the stability and accuracy of the workpiece 9 during the calibration process.

[0032] S3, workpiece 9 rotation and runout data collection; The workpiece 9 is rotated by the rotating system 4, and the runout data is collected by the measuring system 7; the runout information of the workpiece 9 can be obtained comprehensively and accurately, providing a reliable basis for subsequent analysis and correction.

[0033] S4, runout curve analysis and compression correction; The central control system 8 analyzes the vibration data, adjusts the rotation speed and frequency of the rotating system 4, and adjusts the power of the top pressure correction system 2; accurately adjusts the correction parameters according to the analysis results, and performs high-precision correction on the workpiece 9.

[0034] S5, cyclic correction or release positioning; The measuring system 7 collects the corrected runout data. If it meets the requirements, the calibration is terminated and the positioning is released. Otherwise, step S4 is repeated, thereby ensuring the accuracy and reliability of the calibration result and improving the automation of the calibration process.

[0035] Furthermore, in step S2, the chuck 31 drives the claw 32 to tighten the workpiece 9, and detects whether it is tightened in place; after it is in place, the transverse drive device 5 drives the workpiece 9 to move transversely as a whole, and the workpiece 9 contacts the push rod of the digital display PLC micrometer 71 of the measuring system 7, and detects whether it is moved to the right in place; after it is detected that it is in place, the central control system 8 allows the rotation system 4 to start, ensuring the accuracy and safety of the preparation work of the workpiece 9 before calibration, and laying a solid foundation for the subsequent calibration process.

[0036] Further, in step S3, after the detection is in place, the central control system 8 starts the rotation drive motor 42 to work, and transmits the power to the workpiece 9 through various components. While the workpiece 9 rotates, the central control system 8 collects the runout data measured by the digital display PLC micrometer 71 in real time, records the runout value and associates it with the rotation angle of the rotation drive motor 42, and saves it in the system register, and displays the runout curve on the touch screen 81. After the workpiece 9 rotates 360°, the central control system 8 automatically analyzes the runout curve, rotates the workpiece 9 at the maximum runout position to the center position of the first clamping block 26, and after the workpiece 9 is aligned with the center of the first clamping block 26 at the maximum runout position, the chuck 31 drives the claw 32 to release the workpiece 9. The central control system 8 detects whether the chuck 31 and the claw 32 are released in place through the proximity switch. After confirming that the claw 32 is released in place, the central control system 8 starts the hydraulic station 22, and the hydraulic cylinder 23 drives the first clamping block 26 to press the gear assembly according to the set pressure and time. After the pressing is completed, the first clamping block 26 is retracted.

Claims

1. A fully automatic correction device for a gear assembly, characterized in that: The machine frame (1) comprises a press correction system (2) for correcting a gear assembly, a positioning system (3) for fixing the gear assembly, a rotation system (4) for driving the gear assembly to rotate, a measuring system (7) for measuring the runout of the gear assembly, and a central control system (8) for controlling automatic correction. The positioning system (3) fixes the gear assembly, the rotation system (4) drives the gear assembly to rotate, the measuring system (7) measures the runout of the gear assembly, and the central control system (8) controls the press correction system (2) to perform extrusion correction on the gear assembly according to the runout.

2. The fully automatic correction device for gear assembly according to claim 1, characterized in that: The positioning system (3) comprises a chuck (31), a support tube (33) being detachably connected in the middle of the chuck (31), claws (32) being arranged at equal intervals around the circumference of the support tube (33), and a positioning shaft (34) for connecting to a gear assembly being coaxially plugged into the support tube (33).

3. The fully automatic correction device for a gear assembly according to claim 2, characterized in that: The chuck (31) is connected to a transmission cylinder (35) at the bottom, the rotation system (4) comprises a mounting frame (41), a rotation drive motor (42) is mounted on the mounting frame (41), the transmission cylinder (35) is rotationally connected to the mounting frame (41) via a bearing assembly (48), the rotation drive motor (42) is drivingly connected to the transmission cylinder (35), and a gas-electric slip ring (49) for connecting to a gas source and a power source is rotationally connected to the lower side of the transmission cylinder (35).

4. The fully automatic correction device for a gear assembly according to claim 3, characterized in that: A secondary gear (47) is fixedly mounted on the transmission cylinder (35), and an output end of the rotary drive motor (42) is drivingly connected to a primary gear (46), and the primary gear (46) is meshingly connected to the secondary gear (47).

5. The fully automatic correction device for gear assembly according to claim 3 is characterized in that: A slide rail (51) is installed on the frame (1), the mounting frame (41) is slidably connected to the slide rail (51), a transverse drive device (5) is provided on one side of the slide rail (51), and an output end of the transverse drive device (5) is connected to the mounting frame (41).

6. The fully automatic correction device for a gear assembly according to claim 3, characterized in that: A mold changing positioning device (6) is provided on one side of the mounting frame (41) for abutting against the mounting frame (41) when changing molds. The mold changing positioning device (6) comprises a lifting drive device (61) and a step stop block (62). The lifting drive device (61) is fixedly mounted on the mounting frame (41) and is connected to the step stop block (62). The step stop block (62) is a horizontal progressive step. The lifting drive device (61) drives the step stop block (62) to move up and down.

7. The fully automatic correction device for a gear assembly according to claim 1, characterized in that: The top pressure correction system (2) comprises a first fixed seat (21), a hydraulic station (22), a hydraulic cylinder (23), a guide seat (24), a first clamping block (26) for extruding the gear assembly, a second fixed seat (25) and a second clamping block (27), wherein the first fixed seat (21) and the second fixed seat (25) are fixedly connected to the frame (1) and are arranged on both sides of the positioning system (3), the hydraulic cylinder (23) is fixed to the first fixed seat (21) and is connected to the hydraulic station (22), the output end of the hydraulic cylinder (23) is guided by the guide seat (24) and then driven to connect to the first clamping block (26), and the second clamping block (27) is fixedly connected to the second fixed seat (25) and is arranged opposite to the first clamping block (26).

8. A gear assembly correction method, characterized in that: The method is carried out using the fully automatic correction device for a gear assembly as described in any one of claims 2 to 7, wherein the steps include: S1, Workpiece (9) selection and installation preparation; S2, the workpiece (9) is tightened and positioned; Positioning and clamping the corresponding workpiece (9) by means of a positioning system (3); S3, workpiece (9) rotation and runout data collection; Rotating the workpiece (9) by means of a rotating system (4) while collecting runout data by means of a measuring system (7); S4, runout curve analysis and compression correction; Analyzing the vibration data through the central control system (8), adjusting the rotation speed and frequency of the rotating system (4), and adjusting the power of the top pressure correction system (2); S5, cyclic correction or release positioning; The measuring system (7) collects the corrected runout data. If the data meets the requirements, the calibration is terminated and the positioning is released. Otherwise, step S4 is repeated.

9. The gear assembly correction method according to claim 8, characterized in that: In step S1, the height of the step limit block (62) is adjusted according to the specifications of the gear assembly, and whether it is in place is detected by an induction switch; in step S2, a positioning shaft (34) of corresponding specifications is selected according to the specifications of the gear assembly, and the workpiece (9) is installed on the positioning shaft (34).

10. The gear assembly correction method according to claim 8, characterized in that: In step S2, the chuck (31) drives the clamping claw (32) to clamp the workpiece (9), and detects whether it is clamped in place; after it is in place, the workpiece (9) is driven by the transverse driving device (5) to move horizontally as a whole, the workpiece (9) contacts the top rod of the digital display PLC micrometer (71) of the measuring system (7), and detects whether it is moved to the right in place; after it is detected that it is in place, the central control system (8) allows the rotation system (4) to start.

Images