Full-automatic comprehensive size detection equipment for hub spline shaft

Abstract

This application relates to a fully automatic comprehensive dimensional inspection device for hub spline shafts, comprising a machine body. The machine body is sequentially equipped with a material conveying channel, a gripping assembly for transporting hub spline shafts, a marking assembly for marking hub spline shafts, an outer diameter inspection mechanism for measuring the outer diameter of the hub spline shaft, an inner diameter inspection mechanism for measuring the inner diameter of the hub spline shaft, and a spline inspection mechanism for measuring the spline span distance in the hub spline shaft. The machine body also includes a qualified channel and a repair channel for transporting inspected hub spline shafts. This application improves the applicability of hub spline shaft inspection equipment.

Description

Technical Field

[0001] This application relates to the field of wheel hub spline shaft inspection technology, and in particular to a fully automatic comprehensive dimensional inspection device for wheel hub spline shafts. Background Technology

[0002] Wheel hub measuring machines are automated precision testing equipment used in the production of automotive wheel hubs / wheel hub bearing units to measure geometric dimensions, form and position tolerances, and key precision parameters. They directly determine whether a product can be installed in a vehicle and are core equipment for quality control.

[0003] Reference Figure 1 The hub spline shaft was disclosed, which requires testing three outer diameter dimensions (D1, D2, and D3), two inner diameter dimensions (D4 and D5), H1 height dimension, and D6 spline dimension.

[0004] Existing technologies include various diameter detection devices; however, hub spline shafts require detection of numerous dimensions, styles, and locations. Existing automatic detection devices are limited in scope and cannot adapt to the detection of multiple different sizes and locations, thus reducing the applicability of hub spline shaft detection equipment. Summary of the Invention

[0005] To improve the applicability of hub spline shaft inspection equipment, this application provides a fully automatic comprehensive dimensional inspection device for hub spline shafts.

[0006] This application provides a fully automatic integrated dimensional inspection device for hub splined shafts, employing the following technical solution: A fully automatic integrated dimensional inspection device for hub spline shafts includes a machine body. The machine body is sequentially equipped with a material conveying channel, a gripping component for transporting hub spline shafts, a marking component for marking hub spline shafts, an outer diameter inspection mechanism for measuring the outer diameter of the hub spline shaft, an inner diameter inspection mechanism for measuring the inner diameter of the hub spline shaft, and a spline inspection mechanism for measuring the spline span of the hub spline shaft. The machine body is also equipped with a qualified channel and a repair channel for transporting the inspected hub spline shafts.

[0007] Optionally, the gripping assembly includes a moving motor, a moving platform, a lifting motor, a lifting seat, a rotating platform, a first rotary cylinder, and a first gripper cylinder. A moving crossbeam is mounted on the machine body. The moving platform is slidably fitted onto the moving crossbeam. A drive gear is connected to the output shaft of the moving motor. A drive rack is connected to the moving crossbeam. The drive gear and the drive rack mesh. The lifting seat is vertically slidably fitted onto the moving platform. The lifting motor is mounted on the moving platform. The lifting seat is connected to the lifting motor on the moving platform via a gear and rack assembly. The first rotary cylinder is mounted on the lifting seat and is inclined. The rotating platform is connected to the rotating end of the first rotary cylinder. Two first gripper cylinders are provided and both are mounted on the rotating platform. The two first gripper cylinders are perpendicular to each other.

[0008] Optionally, the marking assembly includes a marking table, a marking cylinder, and a laser marking machine. The marking cylinder is horizontally mounted on the machine body, the marking table is mounted on the output shaft of the marking cylinder, and the laser marking machine is mounted on the machine body. The marking station of the laser marking machine is located on the moving path of the marking table.

[0009] Optionally, the outer diameter detection mechanism includes an outer diameter mounting assembly and an outer diameter detection assembly for detecting the outer diameter of the hub spline shaft. The outer diameter mounting assembly includes an outer diameter detection platform, a first lifting cylinder, and a first lifting frame. The outer diameter detection platform is mounted on the machine body, the first lifting cylinder is vertically mounted on the machine body, the first lifting frame is mounted on the output end of the first lifting cylinder, and an installation station is provided on the first lifting frame. The first lifting frame is located directly above the outer diameter detection platform, and the installation station is aligned with the outer diameter detection platform.

[0010] Optionally, the outer diameter measuring platform includes a first fixed cylinder, a rotating shaft, a second lifting cylinder, a first rotating motor, a first pull rod, and an expansion sleeve. The first fixed cylinder is connected to the machine body. The rotating shaft is rotatably connected to the first fixed cylinder and coaxially arranged with the first fixed cylinder. The top end of the rotating shaft is frustum-shaped. The first pull rod passes through the rotating shaft, and a connector is connected to the top end of the first pull rod. The expansion sleeve is fitted onto the top end of the rotating shaft and connected to the connector. The first rotating motor is mounted on the machine body and connected to the rotating shaft via a synchronous belt. The bottom end of the first pull rod is rotatably connected to the first rotating cylinder. The second lifting cylinder is connected to the machine body. A connecting rod is connected to the output shaft of the second lifting cylinder. The connecting rod is rotatably connected to the first rotating cylinder. When installing the hub spline shaft, the first pull rod descends, the expansion sleeve descends, the expansion sleeve deforms, and abuts against the inner wall of the hub spline shaft.

[0011] Optionally, the outer diameter detection assembly includes a first push cylinder, a push seat, and a second gripper cylinder. The push seat is slidably fitted on the machine body, and the outer diameter detection stage is located on the moving path of the push seat. The first push cylinder is mounted on the machine body, and its output end is connected to the push seat. Several second gripper cylinders are provided, and a first detection head is provided on the gripper of the second gripper cylinder. During detection, the push seat moves to a designated position, and the first detection head abuts against the D1, D2, and D3 dimensions of the hub spline shaft.

[0012] Optionally, the inner diameter detection mechanism includes a flipping assembly and an inner diameter detection assembly for detecting the inner diameter of the hub spline shaft. The flipping assembly includes a third lifting cylinder, a second lifting frame, a second rotating cylinder, a swing arm, a third gripper cylinder, and an inner diameter detection platform. A fixed frame is connected to the machine body. The second lifting frame slides vertically on the fixed frame. The third lifting cylinder is installed between the machine body and the second lifting frame. The second rotating cylinder is installed on the second lifting frame. One end of the swing arm is connected to the output shaft of the second rotating cylinder. The third gripper cylinder is installed at the other end of the swing arm. The inner diameter detection platform is installed on the machine body and is located on the lifting path after the third gripper cylinder flips. During detection, the hub spline shaft is inverted on the inner diameter detection platform.

[0013] Optionally, the inner diameter detection platform includes a second fixed cylinder, a second rotating cylinder, a positioning ring, a clamping cylinder, a connecting cylinder, a fourth lifting cylinder, and a second rotating motor. The second fixed cylinder is mounted on the machine body, and the second rotating cylinder is rotatably connected to the second fixed cylinder. The positioning ring is sleeved on the top of the second rotating cylinder, and several support blocks embedded in the top of the second rotating cylinder are connected to the positioning ring. The second rotating cylinder is provided with a frustum-shaped annular surface, with the smaller end of the frustum-shaped annular surface facing downwards. The connecting cylinder and the clamping cylinder are both disposed inside the second rotating cylinder. The top of the clamping cylinder has several gap grooves, and the end wall of the clamping cylinder fits against the frustum-shaped annular surface. The bottom end of the clamping cylinder is threaded to the top of the connecting cylinder. The second rotating motor is mounted on the machine body and is connected to the second rotating cylinder via a synchronous belt. The fourth lifting cylinder is mounted on the machine body, and an extension rod is connected to the output end of the fourth lifting cylinder. The extension rod is rotatably connected to the bottom end of the connecting cylinder.

[0014] Optionally, the inner diameter detection assembly includes a first fixed base, a third lifting frame, a fifth lifting cylinder, a fourth gripper cylinder, a limiting frame, and a contact frame. The first fixed base is connected to the machine body, the third lifting frame is vertically slidably fitted on the first fixed base, the fifth lifting cylinder is installed between the machine body and the third lifting frame, the limiting frame is connected to the third lifting frame, the fourth gripper cylinder is installed on the third lifting frame, the gripper of the fourth gripper cylinder passes through the limiting frame and is connected to a second detection head, the contact frame is connected to the machine body, a contact rod is connected to the contact frame, and the end of the contact rod is connected to the third detection head. During detection, the second detection head contacts the D4 and D5 dimensions of the hub spline shaft, and the third detection head detects the H1 dimension of the hub spline shaft.

[0015] Optionally, the spline detection mechanism includes a spline mounting assembly and a spline detection assembly. The structure of the spline mounting assembly is consistent with that of the outer diameter mounting assembly. The spline detection assembly includes a second fixed base, a proximity sensor, a spline gauge, a moving block, a second push cylinder, and a contact ball. The second fixed base is connected to the machine body. A fourth lifting frame is vertically slidably fitted on the second fixed base. A lowering motor is mounted on the second fixed base. The lowering motor drives the fourth lifting frame to move via a screw component. A rotating shaft is rotatably connected to the fourth lifting frame. The spline gauge... The vertical sliding fit is on the rotating shaft. An adjusting motor is installed on the fourth lifting frame and coaxially connected to the rotating shaft. Two moving blocks are provided, which are arranged opposite each other and slidably fitted on the machine body. A pin is connected to the moving block, and an abutment bead is connected to the end of the pin. The second pushing cylinder is installed on the machine body, and its output shaft is connected to the moving block. The proximity sensor is installed on the fourth lifting frame, and its sensing end is located in the moving direction of the spline gauge. The adjusting motor is electrically connected to the proximity sensor.

[0016] In summary, this application includes at least one of the following beneficial technical effects: During inspection, workers place the splined wheel shaft vertically on the conveyor channel until it reaches the gripping station of the gripping assembly. The gripping assembly picks up the splined wheel shaft and sequentially conveys it to the marking station of the marking assembly, the inspection station of the outer diameter inspection mechanism, the inspection station of the inner diameter inspection mechanism, and the inspection station of the spline inspection mechanism. Finally, the gripping assembly transports qualified splined wheel shafts to the qualified channel and unqualified splined wheel shafts to the repair channel, thus completing the inspection of the splined wheel shafts. A single device can inspect the dimensions of splined wheel shafts D1, D2, D3, D4, D5, D6, and H1, with fully automated inspection. It can handle different inspection sizes, styles, and positions with a single device. Compared to existing technologies, this increases the inspection range and improves the applicability of the splined wheel shaft inspection equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a hub spline shaft in the prior art.

[0018] Figure 2 This is a schematic diagram of the overall structure of the size detection device in the embodiments of this application.

[0019] Figure 3 This is a schematic diagram of the internal structure of the size detection device in the embodiments of this application.

[0020] Figure 4 This is a schematic diagram of the structure of the grabbing component in the embodiments of this application.

[0021] Figure 5 This is a schematic diagram of the structure of the compliant component in the embodiments of this application.

[0022] Figure 6 This is a schematic diagram of the outer diameter detection mechanism in the embodiments of this application.

[0023] Figure 7 This is a cross-sectional view used in the embodiments of this application to illustrate the internal structure of the outer diameter measuring platform.

[0024] Figure 8 This is a schematic diagram of the inner diameter detection mechanism in the embodiments of this application.

[0025] Figure 9 This is a cross-sectional view used in the embodiments of this application to illustrate the internal structure of the inner diameter testing platform.

[0026] Figure 10 This is a schematic diagram of the inner diameter detection component in an embodiment of this application.

[0027] Figure 11 yes Figure 10 Enlarged view of point A in the middle.

[0028] Figure 12This is a schematic diagram of the spline detection mechanism in the embodiments of this application.

[0029] Figure 13 yes Figure 12 Enlarged view of section B in the middle.

[0030] Explanation of reference numerals in the attached drawings: 1. Machine body; 11. Material conveying channel; 12. Qualified channel; 13. Channel to be repaired; 14. Moving crossbeam; 15. Fixed frame; 16. Placement platform; 2. Gripping assembly; 21. Moving motor; 22. Moving platform; 23. Lifting motor; 24. Lifting seat; 25. Rotating platform; 26. First rotary cylinder; 27. First gripper cylinder; 3. Marking assembly; 31. Marking table; 32. Marking cylinder; 33. Laser marking machine; 4. Outer diameter detection mechanism; 1. Outer diameter mounting assembly; 411. Outer diameter measuring platform; 4111. First fixed cylinder; 4112. Rotating shaft; 4113. Second lifting cylinder; 4114. First rotating motor; 4115. First pull rod; 4116. Expansion sleeve; 412. First lifting cylinder; 413. First lifting frame; 42. Outer diameter measuring assembly; 421. First push cylinder; 422. Push seat; 423. Second gripper cylinder; 4231. First measuring head; 5. Inner diameter measuring mechanism; 51. Tilting assembly; 511. Third lifting cylinder; 512. Second lifting frame; 513. Second rotary cylinder; 514. Swing arm; 515. Third gripper cylinder; 516. Inner diameter measuring platform; 5161. Second fixed cylinder; 5162. Second rotating cylinder; 5163. Positioning ring; 5164. Clamping cylinder; 5165. Connecting cylinder; 5166. Fourth lifting cylinder; 5167. Second rotary motor; 52. Inner diameter measuring assembly; 521. First fixed base; 52 2. Third lifting frame; 523. Fifth lifting cylinder; 524. Fourth gripper cylinder; 5241. Second detection head; 525. Limiting frame; 526. Contact frame; 5261. Third detection head; 6. Spline detection mechanism; 61. Spline mounting assembly; 62. Spline detection assembly; 621. Second fixed seat; 622. Proximity sensor; 623. Spline go gauge; 6231. Adjusting motor; 624. Moving block; 625. Second push cylinder; 626. Contact ball. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 2-13 This application will be described in further detail.

[0032] This application discloses a fully automatic comprehensive dimensional inspection device for hub spline shafts. (Refer to...) Figure 2 and Figure 3The fully automatic integrated dimensional inspection equipment for hub spline shafts includes a machine body 1. The machine body 1 is sequentially equipped with a material conveying channel 11 for transporting hub spline shafts, a gripping assembly 2 for gripping hub spline shafts, a marking assembly 3 for marking hub spline shafts, an outer diameter inspection mechanism 4 for measuring the outer diameter of the hub spline shaft, an inner diameter inspection mechanism 5 for measuring the inner diameter of the hub spline shaft, and a spline inspection mechanism 6 for measuring the spline span distance in the hub spline shaft. The machine body 1 also includes a qualified channel 12 and a repair channel 13.

[0033] During inspection, the hub spline shaft is placed in the feeding channel 11, then gripped by the gripping component 2 and sequentially conveyed to the marking component 3, outer diameter detection mechanism 4, inner diameter detection mechanism 5, and spline detection mechanism 6 to inspect various dimensions of the hub spline shaft. Finally, the gripping component 2 places the qualified hub spline shafts into the qualified channel 12 and the unqualified hub spline shafts into the repair channel 13, achieving automated inspection of various dimensions of the hub spline shaft. Reference Figure 3 The material conveying channel 11 is a chain plate conveyor, and the driving source of the material conveying channel 11 is a stepper motor to realize the gripping and conveying of a single hub spline shaft.

[0034] Reference Figure 3 and Figure 4 The gripping assembly 2 consists of two sets, including a moving motor 21, a moving platform 22, a lifting motor 23, a lifting seat 24, a rotating platform 25, a first rotating cylinder 26, and a first gripper cylinder 27. A moving crossbeam 14 is mounted on the machine body 1, and the moving platform 22 is slidably fitted onto the moving crossbeam 14. The moving motor 21 is mounted on the moving platform 22, and a drive gear is fixedly connected to the output shaft of the moving motor 21. A drive rack is mounted on the moving crossbeam 14, and the drive gear meshes with the drive rack. The lifting seat 24 is vertically slidably fitted onto the moving platform 22, and the lifting motor 23 is mounted on the moving platform 22. The lifting motor 23 and the lifting seat 24 are connected via a gear and rack assembly.

[0035] Reference Figure 3 and Figure 4 The first rotary cylinder 26 is installed at the bottom of the lifting seat 24. The first rotary cylinder 26 is inclined and the angle between it and the material conveying channel 11 is 45 degrees. The rotating table 25 is installed at the rotating end of the first rotary cylinder 26. Two first gripper cylinders 27 are provided and are both installed on the rotating table 25. The two first gripper cylinders 27 are perpendicular to each other.

[0036] During transport, the hub spline shaft is placed on the transport channel, the moving motor 21 is started, and the moving table 22 is moved to the designated position through the cooperation of the drive gear and drive rack. The lifting motor 23 is started, and the lifting seat 24 is lowered to the designated height. One of the first gripper cylinders 27 is used to clamp the hub spline shaft. At other workstations, the other gripper cylinder is used to pick up the hub spline shaft that has completed the process. The positions of the two first gripper cylinders 27 are adjusted by the first rotary cylinder 26. This process is repeated to replace the two hub spline shafts.

[0037] Reference Figure 3 and Figure 5 The marking component 3 includes a marking table 31, a marking cylinder 32, and a laser marking machine 33. The laser marking machine 33 is mounted on the machine body 1, with its laser emission end facing downwards. The marking cylinder 32 is horizontally mounted on the machine body 1 and is a rodless cylinder. The marking table 31 is mounted on the output end of the marking cylinder 32. The initial position of the marking table 31 is located on the moving path of the gripping component 2, and its final position is directly below the laser emission end of the laser marking machine 33.

[0038] The hub spline shaft is placed on the marking table 31 by the gripping component 2, the marking cylinder 32 is started, the hub spline shaft is moved to the bottom of the laser marking machine 33, the laser marking machine 33 is started, and the hub spline shaft is marked.

[0039] Reference Figure 6 The outer diameter detection mechanism 4 includes an outer diameter mounting assembly 41 and an outer diameter detection assembly 42. The outer diameter mounting assembly 41 includes an outer diameter detection platform 411, a first lifting cylinder 412, and a first lifting frame 413. The first lifting cylinder 412 is vertically mounted on the machine body 1. One end of the first lifting frame 413 is mounted on the output end of the first lifting cylinder 412, and the other end is a U-shaped installation station. The first lifting frame 413 is used to support the hub spline shaft.

[0040] Reference Figure 7 An outer diameter measuring platform 411 is mounted on the machine body 1 and located directly below the first lifting frame 413. The outer diameter measuring platform 411 includes a first fixed cylinder 4111, a rotating shaft 4112, a second lifting cylinder 4113, a first rotating motor 4114, a first pull rod 4115, and an expansion sleeve 4116. The first fixed cylinder 4111 is connected to the machine body 1 via a flange. The rotating shaft 4112 is rotatably connected inside the first fixed cylinder 4111 and is coaxially arranged with the first fixed cylinder 4111. The top end of the rotating shaft 4112 is frustum-shaped.

[0041] Reference Figure 7A first pull rod 4115 passes through the rotating shaft 4112, and a connector is fixedly connected to the top end of the first pull rod 4115. An expansion sleeve 4116 is fitted onto the top end of the rotating shaft 4112 and is located between the expansion sleeve 4116 and the top end of the rotating shaft 4112. A first rotating motor 4114 is mounted on the machine body 1 and is connected to the rotating shaft 4112 via a synchronous belt. The bottom end of the first pull rod 4115 is connected to a first rotating cylinder via a bearing. A second lifting cylinder 4113 is vertically mounted on the machine body 1, and a connecting rod is fixedly connected to the output shaft of the second lifting cylinder 4113. The connecting rod is connected to the bottom end of the first rotating cylinder via a bearing.

[0042] When installing the hub spline shaft, the gripping assembly 2 places the hub spline shaft on the first lifting frame 413, and lowers it through the first lifting cylinder 412 to the top of the rotating shaft 4112. The second lifting cylinder 4113 is then activated, which pulls the first rotating cylinder through the connecting rod. The first rotating cylinder pulls the first pull rod 4115, causing the expansion sleeve 4116 to descend and expand. The expansion sleeve 4116 presses against the inner wall of the hub spline shaft, thus completing the installation of the hub spline shaft.

[0043] Reference Figure 6 The outer diameter detection component 42 includes a first push cylinder 421, a push seat 422, and a second gripper cylinder 423. The push seat 422 is slidably fitted onto the machine body 1, and the first cylinder is installed between the machine body 1 and the push seat 422. Several second gripper cylinders 423 are provided; in this embodiment, five are used as an example. The second gripper cylinders 423 are horizontally installed on the push seat 422, and the first detection head 4231 is installed on the gripper of the second gripper cylinder 423.

[0044] During testing, the first push cylinder 421 is activated, which moves the push seat 422. The hub spline shaft is positioned between the two first detection heads 4231. Two sets of first detection heads 4231 detect D1, two sets of first detection heads 4231 detect D2, and one set of first detection heads 4231 detects D3. Then, the first rotation motor 4114 is activated, which drives the rotating shaft 4112 to rotate via a synchronous belt, causing the hub spline shaft to rotate and enabling multiple measurements at different angles. After testing, the push seat 422 returns to its original position, the second lifting cylinder 4113 resets, and the first lifting frame 413 lifts the hub spline shaft via the first lifting cylinder 412.

[0045] Reference Figure 8The inner diameter detection mechanism 5 includes a tilting assembly 51 and an inner diameter detection assembly 52. ​​The tilting assembly 51 includes a third lifting cylinder 511, a second lifting frame 512, a second rotary cylinder 513, a swing arm 514, a third gripper cylinder 515, and an inner diameter detection table 516. A fixed frame 15 is fixedly connected to the machine body 1. The third lifting cylinder 511 is mounted on the machine body 1, and the second lifting frame 512 is mounted on the output shaft of the third lifting cylinder 511. The second rotary cylinder 513 is mounted on the second lifting frame 512, one end of the swing arm 514 is mounted on the rotating end of the second rotary cylinder 513, and the third gripper cylinder 515 is mounted on the other end of the swing arm 514.

[0046] Reference Figure 8 and Figure 9 The inner diameter measuring platform 516 includes a second fixed cylinder 5161, a second rotating cylinder 5162, a positioning ring 5163, a clamping cylinder 5164, a connecting cylinder 5165, a fourth lifting cylinder 5166, and a second rotating motor 5167. The second fixed cylinder 5161 is connected to the machine body 1 via a flange, and the second rotating cylinder 5162 is rotatably connected inside the second fixed cylinder 5161. The positioning ring 5163 is sleeved on the top end of the second rotating cylinder 5162, and several support blocks are fixedly connected to the positioning ring 5163. In this embodiment, three blocks are used as an example. The support blocks are embedded in the top end of the second rotating cylinder 5162 and are used to support the hub spline shaft. The second rotating cylinder 5162 is provided with a frustum-shaped annular surface, with the smaller end of the frustum-shaped annular surface facing downwards.

[0047] Reference Figure 9 Both the connecting cylinder 5165 and the clamping cylinder 5164 are located inside the second rotating cylinder 5162. The top of the clamping cylinder 5164 has several gap grooves, and its top surface fits against the frustum-shaped annular surface. The bottom of the clamping cylinder 5164 is threadedly fitted to the top of the connecting cylinder 5165. The second rotating motor 5167 is mounted on the machine body 1 and connected to the second rotating cylinder 5162 via a synchronous belt. The fourth lifting cylinder 5166 is mounted on the machine body 1, and its output end is fixedly connected to an extension rod. The extension rod is connected to the bottom of the connecting cylinder 5165 via a bearing.

[0048] When installing the hub spline shaft, the second lifting frame 512 is raised by the third lifting cylinder 511. The hub spline shaft is placed at the third clamping cylinder 515 by the gripping assembly 2 and clamped by the third clamping cylinder 515. Then, the swing arm 514 is rotated and lowered by the second rotating cylinder 513, causing the hub spline shaft to rotate 180 degrees and be inserted into the top of the clamping cylinder 5164. The support block supports the hub spline shaft. The fourth lifting cylinder 5166 is activated, and the connecting cylinder 5165 is lowered by the extension rod, which in turn lowers the clamping cylinder 5164. The clamping cylinder 5164 is restricted and contracted by the frustum annular surface, and the clearance groove is reduced to clamp the hub spline shaft.

[0049] Reference Figure 10 and Figure 11 The inner diameter detection assembly 52 includes a first fixed base 521, a third lifting frame 522, a fifth lifting cylinder 523, a fourth gripper cylinder 524, a limiting frame 525, and an abutment frame 526. The first fixed base 521 is bolted to the machine body 1. The third lifting frame 522 is vertically slidably fitted onto the first fixed base 521. The second lifting cylinder 4113 is vertically installed between the machine body 1 and the third lifting frame 522. The limiting frame 525 is fixedly connected to the third lifting frame 522. The fourth gripper cylinder 524 is installed on the third lifting frame 522, with its grippers passing through the limiting frame 525, and is equipped with several second detection heads 5241. The abutment frame 526 is bolted to the machine body 1, and an abutment rod is bolted to the abutment frame 526. A third detection head 5261 is installed at the end of the abutment roller.

[0050] During inspection, when the hub spline shaft is installed in place, the third inspection head 5261 abuts against the hub spline shaft to inspect H1. The fifth lifting cylinder 523 drives the third lifting frame 522 to descend, and the limiting frame 525 enters the hub spline shaft. Two sets of second inspection heads 5241 inspect D4, and one set of inspection heads inspects D5, thus completing the inspection of the hub spline shaft. After inspection, the hub spline shaft is returned to its initial position by the flipping assembly 51, waiting to be picked up by the gripping assembly 2.

[0051] Reference Figure 12 The spline detection mechanism 6 includes a spline mounting assembly 61 and a spline detection assembly 62. The structure of the spline mounting assembly 61 is consistent with that of the outer diameter mounting assembly 41. The spline detection assembly 62 includes a second fixed seat 621, a proximity sensor 622, a spline gauge 623, a moving block 624, a second push cylinder 625, and a contact ball 626. The second fixed seat 621 is bolted to the machine body 1. A fourth lifting frame is vertically slidably fitted on the second fixed seat 621. A rotating shaft is rotatably connected to the fourth lifting frame, and the spline gauge 623 is vertically slidably fitted on the rotating shaft. An adjusting motor 6231 is mounted on the fourth lifting frame and is coaxially connected to the rotating shaft. A lowering motor is mounted on the second fixed seat 621. A screw is connected to the output shaft of the lowering motor, and a nut block is mounted on the fourth lifting frame, with the nut block threaded onto the screw.

[0052] Reference Figure 12 and Figure 13Two movable blocks 624 are provided, both slidingly fitted on the machine body 1. The spline mounting assembly 61 is located between the two movable blocks 624. A pin is fixedly connected to the movable block 624, and an abutment bead 626 is fixedly connected to the end of the pin. The second push cylinder 625 is mounted on the machine body 1, and its output shaft is fixedly connected to the movable block 624. The proximity sensor 622 is mounted on the fourth lifting frame, and the sensing end of the proximity sensor 622 is located on the moving path of the spline go gauge 623. The adjusting motor 6231 and the first rotating motor 4114 of the spline mounting assembly 61 are both electrically connected to the proximity sensor 622.

[0053] The hub spline shaft is securely installed by the outer diameter mounting component 41 after being gripped by the gripping component 2. Then, the lowering motor drives the fourth lifting frame to descend, and the spline gauge 623 is fitted onto the hub spline shaft and then reset. At this time, if the spline gauge 623 is stable at the angle against the end of the hub spline shaft, the spline gauge 623 rises. After the sensing end of the proximity sensor 622 senses the spline gauge 623, the controller starts the adjustment motor 6231 and the first rotation motor 4114 of the spline mounting component 61 to adjust the angle of the hub spline shaft, ensuring that the spline gauge 623 can be fitted onto the hub spline shaft and the contact bead 626 is aligned with the spline groove. Then, the second push cylinder 625 is used to push the moving block 624 to move, so that the contact bead 626 abuts the spline groove, so as to measure the span of D6 and the hub spline shaft.

[0054] Reference Figure 3 To ensure the accuracy of the test, a placement platform 16 is provided on the machine body 1 at the positions corresponding to the outer diameter test component 42, the inner diameter test component 52 and the spline test component 62. The placement platform 16 is used to place the hub spline shaft that meets the standard size and to assist in zeroing.

[0055] Reference Figure 3 To ensure effective measurement, photoelectric sensors are installed on the machine body 1 at the positions corresponding to the outer diameter measuring platform 411 and the inner diameter measuring platform 516. The photoelectric sensors are used to detect whether the hub spline shaft is installed in place.

[0056] The implementation principle of the fully automatic comprehensive dimension inspection equipment for wheel hub spline shafts in this application embodiment is as follows: During inspection, the wheel hub spline shaft is placed on the conveying channel 11, the lifting motor 23 is started, the lifting seat 24 is lowered to the specified height, the first gripper cylinder 27 grips the wheel hub spline shaft, then the moving motor 21 is started, driving the moving table 22 to move to the specified position, and the wheel hub spline shaft is placed on the marking table 31. The marking cylinder 32 is used to send the wheel hub spline shaft to the laser marking machine 33 for marking. Then it is reset, the gripping component 2 picks up the marked wheel hub spline shaft, and the first rotating cylinder 26 is started to place the unmarked one on the table. On the marking table 31, the hub spline shaft is then placed on the first lifting frame 413. The hub spline shaft is placed on the expansion sleeve 4116 by the first lifting cylinder 412. The second lifting cylinder 4113 is activated, causing the first pull rod 4115 to descend. The expansion sleeve 4116 descends and deforms to press against the hub spline shaft. The first push cylinder 421 is activated, and the push seat 422 moves to the designated position. The second gripper cylinder 423 drives the first detection head 4231 to detect the D1, D2, and D3 dimensions of the hub spline shaft. The first rotating motor 4114 drives the rotating shaft 4112 to rotate, realizing multi-angle detection data.

[0057] The hub spline shaft is then moved to the third gripper cylinder 515. The third lifting cylinder 511 raises the third gripper cylinder 515, and the second rotating cylinder 513 flips it so that the hub spline shaft is upside down on the top of the clamping cylinder 5164. At this time, the third detection head 5261 touches the hub spline shaft to measure the H1 dimension. The fourth lifting cylinder 5166 is activated, and the clamping cylinder 5164 descends to clamp the hub spline shaft. The fifth lifting cylinder 523 drives the third lifting frame 522 to descend, and the fourth gripper cylinder 524 drives the second detection head 5241 to touch the hub spline shaft to measure the D4 and D5 dimensions. The second rotating motor 5167 drives the second rotating cylinder 5162 to rotate to achieve multi-angle detection data.

[0058] The hub spline shaft is then moved to the spline mounting assembly 61. A descent motor drives the spline gauge 623 to descend to detect the D6 dimension. If the spline gauge 623 is stably pressed against the end of the hub spline shaft due to its angle, the spline gauge 623 rises. After the sensing end of the proximity sensor 622 detects the spline gauge 623, the first rotation motor 4114 of the spline mounting assembly 61 adjusts the angle of the hub spline shaft to ensure that the contact beads 626 are aligned with the tooth groove of the hub spline shaft. The angle of the spline gauge 623 is adjusted by adjusting the motor 6231, and then the spline gauge 623 is used for detection. Subsequently, the second push cylinder 625 moves the moving block 624, and the two contact beads 626 abut against the spline groove of the hub spline shaft to measure the span distance. Finally, the hub spline shaft with qualified dimensions is transported to the qualified channel 12, and the hub spline shaft with unqualified dimensions is transported to the repair channel 13, realizing the automated measurement effect of the hub spline shaft.

[0059] A single device can be used to inspect the dimensions of hub spline shafts D1, D2, D3, D4, D5, D6, and H1. The entire inspection process is automated, and different inspection sizes, styles, and positions can be performed by a single device. Compared with existing technologies, this increases the inspection range of the hub spline shaft inspection equipment and improves its applicability.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A full-automatic comprehensive size detection equipment for a wheel hub spline shaft, characterized in that: The machine includes a body (1), on which are sequentially arranged a material conveying channel (11), a gripping assembly for transporting the hub spline shaft (2), a marking assembly for marking the hub spline shaft (3), an outer diameter detection mechanism for measuring the outer diameter of the hub spline shaft (4), an inner diameter detection mechanism for measuring the inner diameter of the hub spline shaft (5), and a spline detection mechanism for measuring the spline span of the hub spline shaft (6). The machine also includes a qualified channel (12) and a repair channel (13) for transporting the hub spline shaft after inspection. ​ 2. The full-automatic comprehensive size detection equipment for hub spline shafts according to claim 1, characterized in that: The gripping assembly (2) includes a moving motor (21), a moving platform (22), a lifting motor (23), a lifting seat (24), a rotating platform (25), a first rotary cylinder (26), and a first gripper cylinder (27). A moving crossbeam (14) is provided on the machine body (1). The moving platform (22) is slidably fitted on the moving crossbeam (14). A drive gear is connected to the output shaft of the moving motor (21). A drive rack is connected to the moving crossbeam (14). The drive gear and the drive rack mesh. The lifting seat (24) slides vertically. The lifting motor (23) is mounted on the moving platform (22), and the lifting seat (24) is connected to the lifting motor (23) on the moving platform (22) via a gear and rack assembly. The first rotary cylinder (26) is mounted on the lifting seat (24) and is inclined. The rotating platform (25) is connected to the rotating end of the first rotary cylinder (26). Two first gripper cylinders (27) are provided and are both mounted on the rotating platform (25). The two first gripper cylinders (27) are arranged perpendicularly to each other.

3. The full-automatic comprehensive size detection equipment for hub spline shafts according to claim 1, characterized in that: The marking assembly (3) includes a marking table (31), a marking cylinder (32), and a laser marking machine (33). The marking cylinder (32) is horizontally mounted on the machine body (1). The marking table (31) is mounted on the output shaft of the marking cylinder (32). The laser marking machine (33) is mounted on the machine body (1). The marking station of the laser marking machine (33) is located on the moving path of the marking table (31).

4. The full-automatic comprehensive size detection equipment for hub spline shafts according to claim 1, characterized in that: The outer diameter detection mechanism (4) includes an outer diameter mounting assembly (41) and an outer diameter detection assembly (42) for detecting the outer diameter of the hub spline shaft. The outer diameter mounting assembly (41) includes an outer diameter detection platform (411), a first lifting cylinder (412), and a first lifting frame (413). The outer diameter detection platform (411) is mounted on the machine body (1). The first lifting cylinder (412) is vertically mounted on the machine body (1). The first lifting frame (413) is mounted on the output end of the first lifting cylinder (412). An installation station is provided on the first lifting frame (413). The first lifting frame (413) is located directly above the outer diameter detection platform (411), and the installation station is aligned with the outer diameter detection platform (411).

5. The full-automatic comprehensive size detection equipment for hub spline shafts according to claim 4, characterized in that: The outer diameter measuring platform (411) includes a first fixed cylinder (4111), a rotating shaft (4112), a second lifting cylinder (4113), a first rotating motor (4114), a first pull rod (4115), and an expansion sleeve (4116). The first fixed cylinder (4111) is connected to the machine body (1). The rotating shaft (4112) is rotatably connected to the first fixed cylinder (4111) and coaxially arranged with the first fixed cylinder (4111). The top end of the rotating shaft (4112) is frustum-shaped. The first pull rod (4115) passes through the rotating shaft (4112). A connector is connected to the top end of the first pull rod (4115). The expansion sleeve (4116)... 6) The first rotating motor (4114) is mounted on the machine body (1) and connected to the rotating shaft (4112) via a synchronous belt. The bottom end of the first pull rod (4115) is rotatably connected to the first rotating cylinder. The second lifting cylinder (4113) is connected to the machine body (1). A connecting rod is connected to the output shaft of the second lifting cylinder (4113). The connecting rod is rotatably connected to the first rotating cylinder. When the hub spline shaft is installed, the first pull rod (4115) descends, the expansion sleeve (4116) descends, the expansion sleeve (4116) deforms, and abuts against the inner wall of the hub spline shaft.

6. The full-automatic comprehensive size detection equipment for hub spline shafts according to claim 4, characterized in that: The outer diameter detection assembly (42) includes a first push cylinder (421), a push seat (422), and a second gripper cylinder (423). The push seat (422) is slidably fitted on the machine body (1). The outer diameter detection stage (411) is located on the moving path of the push seat (422). The first push cylinder (421) is mounted on the machine body (1) and its output end is connected to the push seat (422). Several second gripper cylinders (423) are provided. A first detection head (4231) is provided on the gripper of the second gripper cylinder (423). During detection, the push seat (422) moves to a designated position, and the first detection head (4231) abuts against the D1, D2, and D3 dimensions of the hub spline shaft.

7. The full-automatic comprehensive size detection equipment for hub spline shafts according to claim 1, characterized in that: The inner diameter detection mechanism (5) includes a flipping assembly (51) and an inner diameter detection assembly (52) for detecting the inner diameter of the hub spline shaft. The flipping assembly (51) includes a third lifting cylinder (511), a second lifting frame (512), a second rotating cylinder (513), a swing arm (514), a third gripper cylinder (515), and an inner diameter detection table (516). A fixed frame (15) is connected to the machine body (1). The second lifting frame (512) is vertically slidably fitted on the fixed frame (15). The third lifting cylinder (511) is mounted on the... Between the machine body (1) and the second lifting frame (512), the second rotary cylinder (513) is mounted on the second lifting frame (512), one end of the swing arm (514) is connected to the output shaft of the second rotary cylinder (513), the third gripper cylinder (515) is mounted on the other end of the swing arm (514), and the inner diameter detection table (516) is mounted on the machine body (1) and located on the lifting path after the third gripper cylinder (515) is flipped. During the detection, the hub spline shaft is upside down on the inner diameter detection table (516).

8. The full-automatic comprehensive size detection equipment for hub spline shafts according to claim 7, characterized in that: The inner diameter measuring platform (516) includes a second fixed cylinder (5161), a second rotating cylinder (5162), a positioning ring (5163), a clamping cylinder (5164), a connecting cylinder (5165), a fourth lifting cylinder (5166), and a second rotating motor (5167). The second fixed cylinder (5161) is mounted on the machine body (1), and the second rotating cylinder (5162) is rotatably connected to the second fixed cylinder (5161). The positioning ring (5163) is sleeved on the top end of the second rotating cylinder (5162), and several support blocks embedded in the top end of the second rotating cylinder (5162) are connected to the positioning ring (5163). The second rotating cylinder (5162) is provided with a frustum annular surface, and the frustum annular surface is relatively... With the smaller end facing downwards, the connecting cylinder (5165) and the clamping cylinder (5164) are both disposed inside the second rotating cylinder (5162). The top end of the clamping cylinder (5164) has several gap grooves. The end wall of the clamping cylinder (5164) is attached to the frustum annular surface. The bottom end of the clamping cylinder (5164) is threaded to the top end of the connecting cylinder (5165). The second rotating motor (5167) is mounted on the machine body (1) and is connected to the second rotating cylinder (5162) via a synchronous belt. The fourth lifting cylinder (5166) is mounted on the machine body (1). The output end of the fourth lifting cylinder (5166) is connected to an extension rod. The extension rod is rotatably connected to the bottom end of the connecting cylinder (5165).

9. The fully automatic integrated dimensional inspection equipment for hub spline shafts according to claim 7, characterized in that: The inner diameter detection assembly (52) includes a first fixed base (521), a third lifting frame (522), a fifth lifting cylinder (523), a fourth gripper cylinder (524), a limiting frame (525), and a contact frame (526). The first fixed base (521) is connected to the machine body (1). The third lifting frame (522) is vertically slidably fitted on the first fixed base (521). The fifth lifting cylinder (523) is installed between the machine body (1) and the third lifting frame (522). The limiting frame (525) is connected to the third lifting frame (522). On the third lifting frame (522), the fourth gripper cylinder (524) is mounted on the third lifting frame (522). The gripper of the fourth gripper cylinder (524) passes through the limiting frame (525) and is connected to the second detection head (5241). The abutment frame (526) is connected to the machine body (1). An abutment rod is connected to the abutment frame (526). The end of the abutment rod is connected to the third detection head (5261). During detection, the second detection head (5241) abuts against the D4 and D5 dimensions of the hub spline shaft, and the third detection head (5261) detects the H1 dimension of the hub spline shaft.

10. The fully automatic integrated dimensional inspection equipment for hub spline shafts according to claim 4, characterized in that: The spline detection mechanism (6) includes a spline mounting assembly (61) and a spline detection assembly (62). The structure of the spline mounting assembly (61) is consistent with the structure of the outer diameter mounting assembly (41). The spline detection assembly (62) includes a second fixed seat (621), a proximity sensor (622), a spline gauge (623), a moving block (624), a second push cylinder (625), and a contact ball (626). The second fixed seat (621) is connected to the machine body (1). A fourth lifting frame is vertically slidably fitted on the second fixed seat (621). A lowering motor is installed on the second fixed seat (621). The lowering motor drives the fourth lifting frame to move through a screw component. A rotating shaft is rotatably connected to the fourth lifting frame. The spline gauge (624) is... 3) A vertical sliding fit is provided on the rotating shaft. An adjustment motor (6231) is installed on the fourth lifting frame. The adjustment motor (6231) is coaxially connected to the rotating shaft. Two moving blocks (624) are provided. The two moving blocks (624) are arranged opposite to each other and are slidably fitted on the machine body (1). A pin is connected to the moving block (624). The abutting bead (626) is connected to the end of the pin. The second push cylinder (625) is installed on the machine body (1) and its output shaft is connected to the moving block (624). The proximity sensor (622) is installed on the fourth lifting frame and its sensing end is located in the moving direction of the spline gauge (623). The adjustment motor (6231) is electrically connected to the proximity sensor (622).

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