Bearing surface strengthening and defect detecting device and method

Abstract

The invention discloses a bearing surface strengthening and defect detecting device and method.The device comprises a mounting platform, a feeding mechanism, a laser quenching mechanism, a detecting mechanism, a conveying platform and a clamping transverse moving mechanism, and the clamping transverse moving mechanism comprises a first driving unit, a second driving unit and a workpiece moving unit; a plurality of clamping grooves are evenly formed in the workpiece moving unit at intervals, the distance between every two adjacent clamping grooves is a first length, the second driving unit is used for driving the workpiece moving unit to move away from or close to the conveying platform, and the first driving unit is used for driving the workpiece moving unit to move in the length direction of the conveying platform; the laser quenching mechanism and the detection mechanism are arranged on the conveying platform to drive the bearings located in the clamping grooves to move towards the tail end of the conveying platform by a first length at a time, each stop position of the bearings is a stop station, the laser quenching mechanism and the detection mechanism are arranged on a first station and a second station on the conveying platform respectively, and the first station and the second station are the stop stations. The device is high in automation degree and high in heat treatment consistency.

Description

Technical Field

[0001] The invention belongs to the field of bearing manufacturing, and in particular relates to a bearing surface strengthening and defect detection device and method. Background Art

[0002] In the field of bearing manufacturing, heat treatment of bearing raceways is directly related to the subsequent processing quality, which ultimately affects the performance and life of parts. Traditional bearing heat treatment methods are energy-intensive and polluting in bearing manufacturing. At present, the bearing surface treatment process generally adopts nitriding / carburizing / carbonitriding heat treatment technology, which faces problems such as long cycle, high energy consumption, large deformation, and low degree of automation, which restricts the further improvement of bearing life and reliability.

[0003] In addition, the traditional heat treatment of bearing raceways adopts batch processing, and the consistency of the performance improvement of the heat-treated bearing raceway surface is difficult to ensure. There is a probability of batch scrapping, resulting in waste of resources and energy.

[0004] In summary, in the prior art, the heat treatment of the bearing raceway surface has problems such as long cycle, high energy consumption, large deformation, poor consistency and low degree of automation. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a bearing surface strengthening and defect detection device and method in view of the above-mentioned deficiencies in the prior art. The bearing surface strengthening and defect detection device has the advantages of high degree of automation, high consistency of heat treatment, short cycle and low energy consumption.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] A bearing surface strengthening and defect detection device comprises an installation platform, a feeding mechanism, a laser quenching mechanism, a detection mechanism, a conveying platform, and a clamping and traversing mechanism. The feeding mechanism, the laser quenching mechanism, the detection mechanism, the conveying platform, and the clamping and traversing mechanism are all installed on the installation platform. The feeding mechanism is connected to the starting end of the conveying platform. The clamping and traversing mechanism comprises a first driving unit, a second driving unit, and a workpiece moving unit. A plurality of slots are evenly spaced on one side of the workpiece moving unit close to the conveying platform, and the distance between two adjacent slots is a first length. The second driving unit is connected to the workpiece moving unit, and is used to drive the workpiece moving unit to move away from or close to the conveying platform, so as to move the workpiece moving unit located on the conveying platform. The bearing on the platform is clamped in the clamping slot or detached from the clamping slot, the first driving unit is connected to the workpiece moving unit, and is used to drive the workpiece moving unit to move along the length direction of the conveying platform, when the first driving unit drives the workpiece moving unit to move toward the end of the conveying platform, it can drive the bearing located in the clamping slot to move a first length distance at a time toward the end of the conveying platform, and each stopped position of the bearing is a stop position, the laser quenching mechanism and the detection mechanism are respectively arranged at the first station and the second station on the conveying platform, and the first station and the second station are both stop positions, the laser quenching mechanism is used to laser quench the bearing surface, and the detection mechanism is used to perform defect detection on the bearing after laser quenching.

[0008] Preferably, a baffle is provided on a side of the conveying platform away from the workpiece moving unit, and the baffle is made of a flexible material.

[0009] Preferably, the first driving unit includes a first cylinder, a first track, and a mounting seat, the first track is parallel to the conveying platform, the mounting seat is slidably disposed on the first track, the output end of the first cylinder is connected to the mounting seat to drive the mounting seat to slide along the first track, the second driving unit is mounted on the mounting seat, and the workpiece moving unit is mounted on the output end of the second driving unit.

[0010] Preferably, the second driving unit comprises a second cylinder, the second cylinder is mounted on the mounting seat, and the workpiece moving unit is mounted at an output end of the second cylinder.

[0011] Preferably, the workpiece moving unit includes a first cross bar and a plurality of fixed blocks, the first cross bar is fixedly mounted on the output end of the second cylinder, the fixed blocks are evenly spaced and mounted on the side of the first cross bar away from the second cylinder, and a slot is provided at the end of each fixed block, and the distance between two adjacent slots is a first length.

[0012] Preferably, the bearing surface strengthening and defect detection device also includes a processing auxiliary mechanism, which includes a first rotating lifting assembly. The first rotating lifting assembly is arranged on the first workstation and is used to lift the bearing at the first workstation to a height flush with the laser quenching mechanism, and drive the bearing to rotate, thereby completing the full surface quenching of the bearing.

[0013] Preferably, the processing auxiliary mechanism also includes a second rotating lifting assembly, which is arranged on the second workstation and is used to lift the bearing at the second workstation to a height flush with the detection mechanism and drive the bearing to rotate to perform full-surface detection on the bearing.

[0014] Preferably, the bearing surface strengthening and defect detection device also includes an OK coding mechanism and an NG coding mechanism, the OK coding mechanism includes a first slide, a third cylinder, and a first coding area, the first slide connects the end of the conveying platform with the first coding area, and the bearings that have passed the inspection of the detection mechanism enter the entrance of the first coding area through the first slide, and the third cylinder is arranged at the entrance of the first coding area to push the qualified bearings into the first coding area; the NG coding mechanism includes a fourth cylinder, a fifth cylinder, a second slide, a baffle, and a second coding area. A groove is provided on the conveying platform, and a through hole is provided at the bottom of the groove. The two ends of the second slide groove are respectively connected to the through hole at the bottom of the groove and the second material encoding area. The baffle plate is consistent with the shape of the groove. The fourth cylinder is connected to the baffle plate. When the detection mechanism detects an unqualified bearing, the fourth cylinder drives the baffle plate to pull out of the groove, and the unqualified bearing falls into the second slide groove along the through hole at the bottom of the groove, thereby entering the entrance of the second material encoding area. The fifth cylinder is set at the entrance of the second material encoding area, and is used to push the unqualified bearing into the second material encoding area.

[0015] The present invention also provides a method for bearing surface strengthening and defect detection, using the above-mentioned bearing surface strengthening and defect detection device, the method is as follows: S1. At the initial position, the first slot on the workpiece moving unit close to the feeding mechanism is aligned with the bearing on the feeding mechanism, and the second driving unit drives the workpiece moving unit to move toward the direction close to the conveying platform, and the bearing is clamped in the first slot on the workpiece moving unit close to the feeding mechanism; S2, the first driving unit drives the workpiece moving unit to move a first distance in a direction away from the loading mechanism, thereby driving the bearing to move a first distance toward the end of the conveying platform; S3, the second driving unit drives the workpiece moving unit to move in a direction away from the conveying platform, so that the bearing is disengaged from the first clamping groove on the workpiece moving unit close to the feeding mechanism side; S4, the first driving unit drives the workpiece moving unit to move a first distance in a direction close to the feeding mechanism, the bearing on the conveying platform is aligned with the second slot on the workpiece moving unit close to the feeding mechanism, and the first slot on the workpiece moving unit close to the feeding mechanism is aligned with the next bearing on the feeding mechanism; S5. When the bearing passes through the first station, the first rotating lifting assembly drives the bearing to lift and rotate, and the laser quenching mechanism quenches the bearing surface; S6. When the bearing passes through the second station, the second rotating lifting assembly drives the bearing to lift and rotate, and the detection mechanism detects the bearing; S7. The bearings that pass the test enter the OK coding mechanism, and the bearings that fail the test enter the NG coding mechanism.

[0016] Preferably, steps S1-S4 are repeated to transport the multiple bearings on the loading mechanism to the conveying platform in sequence.

[0017] The bearing surface strengthening and defect detection device in the present invention has a high degree of automation, and the loading and unloading process, the transmission process, the quenching and the detection process are all automated, which effectively improves the efficiency of the bearing heat treatment. In addition, the present invention adopts laser quenching for the heat treatment process of the bearing, quenches the bearings one by one, and can adjust the quenching temperature in real time. Combined with the subsequent detection mechanism, it can effectively control the quality of each bearing and ensure that the quenching depth, surface hardness and other indicators of the quenched bearing are consistent. In addition, compared with the traditional bearing heat treatment process, the laser quenching in the present invention has the advantages of short cycle and low energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a first three-dimensional structural schematic diagram of the bearing surface strengthening and defect detection device in embodiment 1 of the invention;

[0019] Figure 2 is a second three-dimensional structural schematic diagram of the bearing surface strengthening and defect detection device in the first embodiment of the invention;

[0020] Figure 3 is a schematic diagram of the overall structure of the bearing surface strengthening and defect detection device in the first embodiment of the invention;

[0021] Figure 4 is a schematic diagram of the structure of the transmission platform in the first embodiment of the invention;

[0022] Figure 5It is a schematic diagram of the structure of the clamping and transverse shifting mechanism in embodiment 1 of the invention.

[0023] In the figure: 100-frame, 110-housing, 120-mounting platform, 130-bearing, 200-clamping and transverse movement mechanism, 210-first cylinder, 220-first track, 230-mounting seat, 240-second cylinder, 250-fixed block, 251-slot, 252-first crossbar, 300-feeding mechanism, 400-laser quenching mechanism, 410-coaxial temperature meter, 500-detection mechanism, 600-transmission platform, 610-bar, 700-first rotary lifting assembly, 710-second rotary lifting assembly, 810-first slide slot, 820-third cylinder, 830-first coding area, 910-fourth cylinder, 920-fifth cylinder, 930-second slide groove, 940-baffle, 950-second coding area, 960-groove, 970-perforation, 980-sixth cylinder, 990-push plate. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of the present invention.

[0025] In the description of the present invention, it should be noted that the term "upper" and the like to indicate orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In the description of the present invention, the terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connect", "set", "install", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0028] The present invention provides a bearing surface strengthening and defect detection device, comprising an installation platform, a feeding mechanism, a laser quenching mechanism, a detection mechanism, a conveying platform, and a clamping and traversing mechanism. The feeding mechanism, the laser quenching mechanism, the detection mechanism, the conveying platform, and the clamping and traversing mechanism are all installed on the installation platform. The feeding mechanism is connected to the starting end of the conveying platform. The clamping and traversing mechanism comprises a first driving unit, a second driving unit, and a workpiece moving unit. A plurality of slots are evenly spaced on one side of the workpiece moving unit close to the conveying platform, and the distance between two adjacent slots is a first length. The second driving unit is connected to the workpiece moving unit to drive the workpiece moving unit to move away from or close to the conveying platform, thereby moving the workpiece moving unit located at The bearing on the conveying platform is clamped in the clamping slot or detached from the clamping slot. The first driving unit is connected to the workpiece moving unit and is used to drive the workpiece moving unit to move along the length direction of the conveying platform. When the first driving unit drives the workpiece moving unit to move toward the end of the conveying platform, it can drive the bearing located in the clamping slot to move a first length distance at a time toward the end of the conveying platform, and each stopped position of the bearing is a stop position. The laser quenching mechanism and the detection mechanism are respectively arranged at the first station and the second station on the conveying platform, and the first station and the second station are both stop positions. The laser quenching mechanism is used to laser quench the bearing surface, and the detection mechanism is used to perform defect detection on the bearing after laser quenching.

[0029] The present invention also provides a method for bearing surface strengthening and defect detection, using the above-mentioned bearing surface strengthening and defect detection device, the method is as follows: S1. At the initial position, the first slot on the workpiece moving unit close to the feeding mechanism is aligned with the bearing on the feeding mechanism, and the second driving unit drives the workpiece moving unit to move toward the direction close to the conveying platform, and the bearing is clamped in the first slot on the workpiece moving unit close to the feeding mechanism; S2, the first driving unit drives the workpiece moving unit to move a first distance in a direction away from the loading mechanism, thereby driving the bearing to move a first distance toward the end of the conveying platform; S3, the second driving unit drives the workpiece moving unit to move in a direction away from the conveying platform, so that the bearing is disengaged from the first clamping groove on the workpiece moving unit close to the feeding mechanism side; S4, the first driving unit drives the workpiece moving unit to move a first distance in a direction close to the feeding mechanism, the bearing on the conveying platform is aligned with the second slot on the workpiece moving unit close to the feeding mechanism, and the first slot on the workpiece moving unit close to the feeding mechanism is aligned with the next bearing on the feeding mechanism; S5. When the bearing passes through the first station, the first rotating lifting assembly drives the bearing to lift and rotate, and the laser quenching mechanism quenches the bearing surface; S6. When the bearing passes through the second station, the second rotating lifting assembly drives the bearing to lift and rotate, and the detection mechanism detects the bearing; S7. The bearings that pass the test enter the OK coding mechanism, and the bearings that fail the test enter the NG coding mechanism.

[0030] Example 1

[0031] like Figure 1 As shown, this embodiment discloses a bearing surface strengthening and defect detection device, including a mounting platform 120, a feeding mechanism 300, a laser quenching mechanism 400, a detection mechanism 500, a conveying platform 600, and a clamping and traversing mechanism 200. The feeding mechanism 300, the laser quenching mechanism 400, the detection mechanism 500, the conveying platform 600, and the clamping and traversing mechanism 200 are all mounted on the mounting platform 120. The conveying platform 600 is arranged along the length direction of the mounting platform 120 and is fixedly mounted on the mounting platform 120 by bolts, and the feeding mechanism 300 is connected to the starting end of the conveying platform 600.

[0032] In this embodiment, the clamping and traverse mechanism 200 is fixed on the mounting platform 120 by bolts. The clamping and traverse mechanism 200 includes a first driving unit, a second driving unit and a workpiece moving unit. A plurality of slots 251 are evenly spaced on one side of the workpiece moving unit close to the conveying platform 600, and the distance between two adjacent slots 251 is a first length. The second driving unit is connected to the workpiece moving unit, and is used to drive the workpiece moving unit to move away from or close to the conveying platform 600, so as to clamp the bearing 130 located on the conveying platform 600 in the slot 251 or disengage from the slot 251. The first driving unit is connected to the workpiece moving unit, and is used to drive the workpiece moving unit to move along the length direction of the conveying platform 600. When the first driving unit drives the workpiece moving unit to move toward the end of the conveying platform 600 (away from the feeding mechanism), it can drive the bearing 130 located in the slot 251 to move toward the end of the conveying platform 600 by a first length at a time, and each stop position of the bearing 130 is a stop position.

[0033] In this embodiment, the laser quenching mechanism 400 and the detection mechanism 500 are respectively arranged at the first station and the second station on the conveying platform 600, and the first station and the second station are both stop stations. The laser quenching mechanism 400 is used to laser quench the surface of the bearing 130, and the detection mechanism 500 is used to perform defect detection on the bearing 130 after laser quenching.

[0034] like Figure 1 , 2As shown, the feeding mechanism 300 is used to sequentially convey a plurality of bearings 130, and when the bearing 130 reaches a designated position on the feeding mechanism 300, it stops (at this time, the workpiece moving unit is in the initial position, and the first clamping groove 251 of the workpiece moving unit close to the feeding mechanism 300 side is aligned with the bearing 130 stopped at the designated position), and the second driving unit drives the workpiece moving unit to move in the direction close to the conveying platform 600, so that the bearing 130 stopped at the designated position is clamped in the first clamping groove 251 of the workpiece moving unit close to the feeding mechanism 300 side. Then, the first driving unit drives the workpiece moving unit to move in the direction away from the feeding mechanism 300 by a first length, so as to drive the bearing 130 located at the designated position of the feeding mechanism 300 to move to the conveying platform 600, and the movement distance of one time is the first length. Thereafter, the second driving unit drives the workpiece moving unit to move in the direction away from the conveying platform 600, so that the bearing 130 is disengaged from the first clamping groove 251 of the workpiece moving unit close to the feeding mechanism 300 side. Then, the first driving unit drives the workpiece moving unit to move a first length in the direction close to the loading mechanism 300. At this time, the bearing 130 located on the conveying platform 600 is aligned with the second slot 251 on the side of the workpiece moving unit close to the loading mechanism 300, and the first slot 251 on the side of the workpiece moving unit close to the loading mechanism 300 is aligned with the next bearing 130 that arrives at the specified position of the loading mechanism 300.

[0035] The first drive unit and the second drive unit move alternately and cyclically according to the above-mentioned movement mode, and the bearings 130 located at the specified position of the loading mechanism 300 can be sequentially clamped in each of the slots 251 of the workpiece moving unit, thereby moving from the starting end of the conveying platform 600 to the end of the conveying platform 600, and multiple bearings 130 can simultaneously pass through the slots 251 on the workpiece moving unit and move on the conveying platform 600 under the drive of the first drive unit and the second drive unit, that is, there is a bearing in each slot 251.

[0036] Specifically, the feeding mechanism 300 includes a first mounting frame, a first driving member, a conveyor belt, and a roller. The first mounting frame is fixedly mounted on one end of the mounting platform 120 by bolts, and the roller is arranged on the first mounting frame, the conveyor belt is mounted on the roller, the first driving member is connected to the roller, and is used to drive the roller to rotate, thereby driving the conveyor belt to move, and the bearing 130 is placed on the conveyor belt, and is transported to the designated position by the conveyor belt.

[0037] like Figure 1 , 2As shown, a stop bar 610 is provided on the side of the conveying platform 600 away from the workpiece moving unit, and the stop bar 610 is made of a flexible material. Specifically, the stop bar 610 is arranged along the length direction of the conveying platform 600, and its length is consistent with the conveying platform 600. The multiple slots 251 on the workpiece moving unit are V-shaped slots 251 that match the shape and size of the bearing 130. When the second driving unit drives the workpiece moving unit to move close to the conveying platform 600, the bearing 130 can be clamped in the V-shaped slot 251. Due to the setting of the stop bar 610, the other side of the bearing 130 can be pressed against the stop bar 610, thereby limiting the bearing 130 to ensure that the bearing 130 can be stably clamped in the slot 251 of the workpiece moving unit and move with the workpiece moving unit toward the end of the conveying platform 600. In this embodiment, the stop bar 610 is made of POM material.

[0038] like Figure 5 As shown, further, the first driving unit includes a first cylinder 210, a first track 220, and a mounting seat 230. The first track 220 is arranged in parallel with the conveying platform 600, the mounting seat 230 is slidably arranged on the first track 220, the output end of the first cylinder 210 is connected to the mounting seat 230, and is used to drive the mounting seat 230 to slide along the first track 220, the second driving unit is installed on the mounting seat 230, and the workpiece moving unit is installed at the output end of the second driving unit.

[0039] Furthermore, the second driving unit includes a second cylinder 240, which is mounted on the mounting base 230, and the workpiece moving unit is mounted at the output end of the second cylinder 240. The second cylinder 240 can drive the workpiece moving unit to move in a direction close to or away from the conveying platform 600 (moving in a direction perpendicular to the length of the conveying platform 600).

[0040] Specifically, there are two mounting seats 230, and correspondingly, there are two second cylinders 240. Both mounting seats 230 are slidably mounted on the first track 220, and the two second cylinders 240 are mounted on the two mounting seats 230, respectively.

[0041] like Figure 5 As shown, in this embodiment, the workpiece moving unit includes a first crossbar 252 and a plurality of fixed blocks 250. The first crossbar 252 is fixedly mounted at the output end of the second cylinder 240, and the two second cylinders 240 are symmetrically arranged along the center of the first crossbar 252. The fixed blocks 250 are evenly spaced and mounted on the first crossbar 252 on a side away from the second cylinder 240, and a V-shaped groove 251 adapted to the bearing 130 is provided at the end of each fixed block 250, and the distance between two adjacent grooves 251 is a first length.

[0042] Specifically, all the fixing blocks 250 are fixed to the first cross bar 252 by bolts. The first fixing block 250 located near the feeding mechanism 300 and the first fixing block 250 located near the end of the conveying platform 600 are different in structure from the other fixing blocks 250. The other fixing blocks 250 are all square plate structures, and a V-shaped groove 251 is provided in the middle of one end away from the first cross bar 252. The first fixing block 250 located near the feeding mechanism 300 is much longer than the other fixing blocks 250, and two grooves 251 are provided on the top of the fixing block 250, and the distance between the two grooves 251 is the first length. The structure of the first fixed block 250 located near the end of the conveying platform 600 is roughly the same as that of the square fixed plate located in the middle part. The only difference is that the end of the first fixed block 250 located near the end of the conveying platform 600 away from the first cross bar 252 is only provided with a protrusion on the side close to the loading mechanism 300 (the end does not form a slot 251), and the side of its end close to the end of the conveying platform 600 is a planar structure to facilitate pushing the bearing 130 to the end of the conveying platform 600.

[0043] In this embodiment, the laser quenching mechanism 400 is fixedly mounted on the mounting platform 120 by bolts, and the laser quenching mechanism 400 adopts a laser quenching head, which is located on the side of the conveying platform 600 away from the clamping and traverse mechanism 200, and the laser quenching head is arranged at the first station of the conveying platform 600, and is used to quench the bearing 130 stopped at the first station. The laser quenching head has a three-way adjustment function, which can adjust the position along the length of the mounting platform 120, can adjust the position along the width direction of the mounting platform 120, and can adjust the position along the height direction.

[0044] In addition, the bearing 130 surface strengthening and defect detection device also includes a processing auxiliary mechanism, which includes a first rotating lifting assembly 700. The first rotating lifting assembly 700 is arranged on the first workstation and is used to lift the bearing 130 at the first workstation to a height flush with the laser quenching mechanism 400, and drive the bearing 130 to rotate, thereby completing the full surface quenching of the bearing 130.

[0045] In addition, a coaxial thermometer 410 is also provided on the mounting platform 120. The coaxial thermometer 410 is fixedly mounted on the mounting platform 120 by bolts and also has a three-way adjustment function that can adjust the position along the length of the mounting platform 120, can adjust the position along the width direction of the mounting platform 120, and can adjust the position along the height direction. The coaxial thermometer 410 is set at the first station and is used to detect the quenching temperature in real time.

[0046] Specifically, the first rotary lifting assembly 700 is mounted on the mounting platform 120 and is located below the conveying platform 600. The first rotary lifting assembly 700 includes a first rotary drive member and a first linear drive member. The first rotary drive member is mounted on the mounting platform 120, the first linear drive member is mounted on the first rotary drive member, and the conveying platform 600 is provided with a first opening at the first station. When the first rotary lifting assembly 700 is not in operation, the top of the first linear drive member is flush with the first opening. When the bearing 130 reaches the first station, the first rotary lifting assembly 700 is started, the first linear drive member moves upward, and lifts the bearing 130 located at the first station so that the bearing rises to a height flush with the laser quenching head. Then, the first rotary drive member drives the first linear drive member and the bearing 130 to rotate, and the laser quenching head performs a 360° full-surface laser quenching treatment on the bearing 130. After the laser quenching is completed, the first linear drive member drives the bearing 130 to descend to the conveying platform 600.

[0047] In this embodiment, the detection mechanism 500 uses a detection camera, which is fixedly mounted on the mounting platform 120 by bolts, and is located on the side of the conveying platform 600 away from the clamping and traverse mechanism 200, and the detection camera is set at the second station of the conveying platform 600, for performing defect detection on the bearing 130 stopped at the second station. Similarly, the detection mechanism 500 has a three-way adjustment function that can adjust the position along the length of the mounting platform 120, can adjust the position along the width direction of the mounting platform 120, and can adjust the position along the height direction. The second station is set between the end of the conveying platform 600 and the first station, that is, the bearing 130 first arrives at the first station for laser quenching treatment, and then arrives at the second station for defect detection.

[0048] Furthermore, the processing auxiliary mechanism also includes a second rotating lifting assembly 710, which is arranged on the second workstation and is used to lift the bearing 130 at the second workstation to a height flush with the detection camera, and drive the bearing 130 to rotate, thereby completing the full-surface quenching defect detection of the bearing 130 after quenching.

[0049] Specifically, the second rotary lifting assembly 710 is mounted on the mounting platform and is located below the conveying platform 600. The second rotary lifting assembly 710 includes a second rotary drive member and a second linear drive member, the second rotary drive member is mounted on the mounting platform 120, the second linear drive member is mounted on the second rotary drive member, and the conveying platform 600 is provided with a second opening on the second station. When the second rotary lifting assembly 710 is not in motion, the top of the second linear drive member is flush with the second opening. When the bearing 130 reaches the second station, the second rotary lifting assembly 710 is started, and the second linear drive member moves upward to lift the bearing 130 located on the second station, so that the bearing rises to a height flush with the detection camera. Then, the second rotary drive member drives the second linear drive member and the bearing 130 to rotate, and the detection performs a 360° full surface detection on the bearing 130. After the detection is completed, the second linear drive member drives the bearing 130 to descend to the conveying platform 600.

[0050] like Figure 1 , 2 As shown in Figures 4 and 5, the bearing surface strengthening and defect detection device also includes an OK coding mechanism and an NG coding mechanism. The OK coding mechanism includes a first slide 810, a third cylinder 820, and a first coding area 830. The first slide 810 connects the end of the conveying platform 600 with the first coding area 830, and the qualified bearings 130 detected by the detection mechanism 500 enter the entrance of the first coding area 830 through the first slide 810. The third cylinder 820 is arranged at the entrance of the first coding area 830 (i.e., the exit of the first slide 810), and is used to push the qualified bearings 130 into the first coding area 830 and arrange them in a row.

[0051] Optionally, the OK coding mechanism further includes a sixth cylinder 980 and a push plate 990. The sixth cylinder 980 is arranged in a direction perpendicular to the conveying platform 600, and the push plate 990 is installed on the output end of the sixth cylinder 980. When a row of bearings 130 at the entrance of the first coding area 830 is fully arranged, the sixth cylinder 980 drives the push plate 990 to push the row of bearings 130 forward to the inside of the first coding area 830. Then, the third cylinder 820 continues to arrange the subsequent bearings 130 in a row at the entrance of the first coding area 830. When they are fully arranged again, the sixth cylinder 980 drives the push plate 990 to push the bearings 130 to the inside of the first coding area 830, and the above steps are repeated in sequence until the first coding area 830 is full.

[0052] like Figure 1 , 2As shown in Figure 4, the NG code material mechanism includes a fourth cylinder 910, a fifth cylinder 920, a second chute 930, a baffle 940, and a second code material area 950. A groove 960 is provided on the conveying platform 600, and a through hole 970 is provided at the bottom of the groove 960. The two ends of the second chute 930 are respectively connected to the through hole 970 at the bottom of the groove 960 and the second code material area 950. The baffle 940 matches the shape of the groove 960, and the fourth cylinder 910 is connected to the baffle 940. When the detection mechanism detects an unqualified bearing 130, the fourth cylinder 910 drives the baffle 940 to pull out the groove 960, and the unqualified bearing 130 falls into the second chute 930 along the through hole 970 at the bottom of the groove 960, thereby entering the entrance of the second code material area 950. The fifth cylinder 920 is set at the entrance of the second code material area 950, and is used to push the unqualified bearing 130 into the second code material area 950.

[0053] When the detection mechanism detects that the bearing 130 is qualified, the fourth cylinder 910 drives the baffle 940 to be inserted into the groove 960. The baffle 940 can fill the groove 960, and the upper surface of the baffle 940 is flush with the upper surfaces of the conveying platforms 600 on both sides, so that the qualified bearing 130 can pass smoothly over the baffle 940 and reach the end of the conveying platform 600. The first fixed block 250 located near the end side of the conveying platform 600 transports the qualified bearing 130 to a position near the end of the conveying platform 600. Multiple qualified bearings 130 are stacked, and then the bearing 130 in front is pushed into the groove 960 in turn.

[0054] like Figure 3 As shown, in this embodiment, the bearing surface strengthening and defect detection device also includes a shell 110 and a frame 100, the mounting platform 120 is fixed to the frame 100 by bolts, and the shell 110 is fixed to the mounting platform 120 by bolts to cover each component inside the shell 110.

[0055] The bearing surface strengthening and defect detection device in this embodiment has a high degree of automation, and the loading and unloading process, the transmission process, the quenching and the detection process are all automated, which effectively improves the efficiency of the bearing heat treatment. In addition, the heat treatment process of the bearing in this embodiment adopts laser quenching, and the bearings are quenched one by one, and the quenching temperature can be adjusted in real time. Combined with the subsequent detection mechanism 500, the quality of each bearing can be effectively controlled to ensure that the quenching depth, surface hardness and other indicators of the quenched bearing are consistent. In addition, compared with the traditional bearing heat treatment process, the laser quenching in this embodiment has the advantages of short cycle and low energy consumption.

[0056] Example 2

[0057] This embodiment discloses a method for bearing surface strengthening and defect detection, using the bearing surface strengthening and defect detection device in Embodiment 1, the method is as follows: S1, at the initial position, the first slot 251 on the workpiece moving unit close to the feeding mechanism 300 is aligned with the bearing on the feeding mechanism 300, and the second driving unit drives the workpiece moving unit to move toward the direction close to the conveying platform 600, and the bearing is clamped in the first slot 251 on the workpiece moving unit close to the feeding mechanism 300; S2, the first driving unit drives the workpiece moving unit to move a first distance in a direction away from the loading mechanism 300, thereby driving the bearing to move a first distance toward the end of the conveying platform 600; S3, the second driving unit drives the workpiece moving unit to move in a direction away from the conveying platform 600, so that the bearing is disengaged from the first slot 251 on the workpiece moving unit near the feeding mechanism 300; S4, the first driving unit drives the workpiece moving unit to move a first distance toward the direction close to the feeding mechanism 300, the bearing on the conveying platform 600 is aligned with the second slot 251 on the workpiece moving unit close to the feeding mechanism 300, and the first slot 251 on the workpiece moving unit close to the feeding mechanism 300 is aligned with the next bearing on the feeding mechanism 300; S5. When the bearing passes through the first station, the first rotating lifting assembly 700 drives the bearing to lift and rotate, and the laser quenching mechanism 400 quenches the bearing surface; S6, when the bearing passes through the second station, the second rotating lifting assembly 710 drives the bearing to lift and rotate, and the detection mechanism 500 detects the bearing; S7. The bearings that pass the test enter the OK coding mechanism, and the bearings that fail the test enter the NG coding mechanism.

[0058] Specifically, the conveyor belt of the feeding structure stops after transporting the bearing 130 to the designated position. At the initial position, the first clamping groove 251 on the workpiece moving unit close to the feeding mechanism 300 is aligned with the bearing 130 located at the designated position on the feeding mechanism 300. The second driving unit drives the workpiece moving unit to move toward the direction close to the conveying platform 600, and the bearing 130 is clamped in the first clamping groove 251 on the workpiece moving unit close to the feeding mechanism 300.

[0059] Then, the first driving unit drives the workpiece moving unit to move a first distance in a direction away from the feeding mechanism 300. Since the bearing is clamped in the first clamping groove 251 on the workpiece moving unit close to the feeding mechanism 300, the bearing in the clamping groove 251 will follow the workpiece moving unit to move a first distance in a direction away from the feeding mechanism 300, thereby realizing the movement of the bearing on the conveying platform 600.

[0060] Afterwards, the second driving unit drives the workpiece moving unit to move in a direction away from the conveying platform 600, so that the bearing is disengaged from the first clamping groove 251 on the workpiece moving unit near the feeding mechanism 300;

[0061] The first driving unit then drives the workpiece moving unit to move a first distance toward the direction close to the feeding mechanism 300, and the bearing on the conveying platform 600 is aligned with the second slot 251 on the workpiece moving unit close to the feeding mechanism 300, and the first slot 251 on the workpiece moving unit close to the feeding mechanism 300 is aligned with the next bearing on the feeding mechanism 300;

[0062] The second driving unit and the first driving unit move alternately to drive the workpiece moving unit to move cyclically, so that the bearing is sequentially inserted into each of the slots 251 of the workpiece moving unit, and then the bearing is driven to move from the designated position of the loading position to the end of the conveying platform 600;

[0063] When the bearing passes through the first station, the first linear drive member drives the bearing to be lifted to a position flush with the laser quenching head, and the first rotary drive member drives the first linear drive member and the bearing to rotate one circle and then stop, thereby performing 360° full surface quenching on the bearing. After the quenching is completed, the first linear drive member drives the bearing to descend to the conveying platform 600; at the same time, the coaxial side temperature meter located at the first station monitors the temperature of the bearing;

[0064] When the bearing passes through the second station, the second linear drive member drives the bearing to be lifted to a position flush with the inspection camera, and the second rotary drive member drives the second linear drive member and the bearing to rotate one circle and then stop, thereby performing a 360° full surface inspection on the bearing. After the inspection is completed, the second linear drive member drives the bearing to descend to the conveying platform 600;

[0065] For the unqualified bearings detected, the fourth cylinder 910 drives the baffle 940 to extract the groove 960, so that the unqualified bearings fall into the second slide groove 930 from the through hole 970 of the groove 960, and slide along the second slide groove 930 to the entrance of the second coding area 950, and the fifth cylinder 920 pushes the bearings at the entrance of the second coding area 950 into the second coding area 950;

[0066] For bearings that have passed the inspection, the fourth cylinder 910 drives the baffle 940 to insert into the groove 960, so that the qualified bearings can pass smoothly from the baffle 940 to the end of the conveying platform 600, and then enter the first slide groove 810, and slide into the entrance of the first coding area 830 through the first slide groove 810. The third cylinder 820 arranges multiple bearings at the entrance of the first coding area 830 into a row. When a row is arranged, the sixth cylinder 980 drives the push plate 990 to push the arranged bearings into the interior of the first coding area 830.

[0067] Further, steps S1-S4 are repeated, and the slots 251 on the workpiece moving unit transfer the bearings transmitted from the loading mechanism 300 to the conveying platform 600 one by one, and by repeating the above steps, multiple bearings can be transported on the conveying platform 600 at the same time, each bearing first engages with the first slot 251 on the workpiece moving unit close to the loading mechanism 300 side, and then engages with the second slot 251 close to the loading mechanism 300 side, until it engages with the first slot 251 on the end side of the conveying platform 600. Each time the first driving unit drives the workpiece moving unit to move in a direction away from the end of the loading mechanism 300, it drives the bearing on the conveying platform 600 to move a first length toward the end of the conveying platform 600.

[0068] The bearing surface strengthening and defect detection method in the present invention realizes the full automation of the heat treatment of the bearing production process, thereby effectively improving the efficiency of the bearing heat treatment. In addition, the heat treatment method of this embodiment is laser quenching, which performs quenching heat treatment on the bearings one by one, and can control the quenching temperature in real time, which can effectively control the quality of each bearing and ensure that the quenching depth, surface hardness and other indicators of the quenched bearing are consistent. In addition, compared with the traditional bearing heat treatment process, the laser quenching in this method has the advantages of short cycle and low energy consumption.

[0069] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A bearing surface strengthening and defect detection device, characterized in that: It comprises an installation platform (120), a feeding mechanism (300), a laser quenching mechanism (400), a detection mechanism (500), a transmission platform (600), and a clamping and transverse movement mechanism (200). The feeding mechanism (300), the laser quenching mechanism (400), the detection mechanism (500), the conveying platform (600), and the clamping and transverse movement mechanism (200) are all installed on the installation platform (120). The feeding mechanism (300) is in communication with the starting end of the conveying platform (600). The clamping and transverse movement mechanism (200) comprises a first driving unit, a second driving unit and a workpiece moving unit. A plurality of slots (251) are evenly spaced apart on one side of the workpiece moving unit close to the conveying platform (600), and the distance between two adjacent slots (251) is a first length. The second driving unit is connected to the workpiece moving unit and is used to drive the workpiece moving unit to move away from or toward the conveying platform (600), thereby clamping the bearing (130) on the conveying platform (600) in the clamping groove (251) or disengaging from the clamping groove (251). The first driving unit is connected to the workpiece moving unit and is used to drive the workpiece moving unit to move along the length direction of the conveying platform (600). When the first driving unit drives the workpiece moving unit to move in the direction toward the end of the conveying platform (600), it can drive the bearing (130) located in the slot (251) to move a first length distance at a time in the direction toward the end of the conveying platform (600), and each stop position of the bearing (130) is a stop position. The laser quenching mechanism (400) and the detection mechanism (500) are respectively arranged at a first station and a second station on the conveying platform (600), and the first station and the second station are both stop stations. The laser quenching mechanism (400) is used to perform laser quenching on the surface of the bearing (130), and the detection mechanism (500) is used to perform defect detection on the bearing (130) after laser quenching.

2. The bearing surface strengthening and defect detection device according to claim 1, characterized in that: A blocking bar (610) is provided on one side of the conveying platform (600) away from the workpiece moving unit, and the blocking bar (610) is made of a flexible material.

3. The bearing surface strengthening and defect detection device according to claim 2, characterized in that: The first driving unit comprises a first cylinder (210), a first track (220), and a mounting seat (230). The first track (220) is parallel to the conveying platform (600), the mounting seat (230) is slidably disposed on the first track (220), and the output end of the first cylinder (210) is connected to the mounting seat (230) for driving the mounting seat (230) to slide along the first track (220). The second driving unit is mounted on the mounting seat (230), and the workpiece moving unit is mounted on the output end of the second driving unit.

4. The bearing surface strengthening and defect detection device according to claim 3, characterized in that: The second driving unit comprises a second cylinder (240), the second cylinder (240) is mounted on the mounting seat (230), and the workpiece moving unit is mounted on the output end of the second cylinder (240).

5. The bearing surface strengthening and defect detection device according to claim 4, characterized in that: The workpiece moving unit comprises a first crossbar (252), a plurality of fixing blocks (250), The first cross bar (252) is fixedly mounted on the output end of the second cylinder (240), the fixing blocks (250) are evenly spaced and mounted on a side of the first cross bar (252) away from the second cylinder (240), and a slot (251) is provided at the end of each fixing block (250), and the distance between two adjacent slots (251) is a first length.

6. The bearing surface strengthening and defect detection device according to claim 1, characterized in that: The invention also includes a processing auxiliary mechanism, wherein the processing auxiliary mechanism includes a first rotating lifting component (700), wherein the first rotating lifting component (700) is arranged on the first work station and is used to lift the bearing (130) at the first work station to a height flush with the laser quenching mechanism (400), and to drive the bearing (130) to rotate, thereby completing full surface quenching of the bearing (130).

7. The bearing surface strengthening and defect detection device according to claim 6, characterized in that: The processing auxiliary mechanism also includes a second rotating lifting component (710), which is arranged on the second workstation and is used to lift the bearing (130) at the second workstation to a height flush with the detection mechanism (500), and drive the bearing (130) to rotate, so as to perform full-surface detection on the bearing (130).

8. The bearing surface strengthening and defect detection device according to claim 5, characterized in that: It also includes the OK code material mechanism and the NG code material mechanism. The OK coding mechanism comprises a first slide groove (810), a third cylinder (820), and a first coding area (830). The first chute (810) connects the end of the conveying platform (600) with the first coding area (830), and the bearing (130) that has passed the inspection of the inspection mechanism (500) enters the entrance of the first coding area (830) through the first chute (810). The third cylinder (820) is arranged at the entrance of the first coding area (830) and is used to push the qualified bearing (130) into the first coding area (830); The NG coding mechanism comprises a fourth cylinder (910), a fifth cylinder (920), a second slide groove (930), a baffle (940), and a second coding area (950). The conveying platform (600) is provided with a groove (960), the bottom of the groove (960) is provided with a through hole (970) running through it, and the two ends of the second slide groove (930) are respectively connected to the through hole (970) at the bottom of the groove (960) and the second material encoding area (950). The baffle (940) matches the shape of the groove (960), and the fourth cylinder (910) is connected to the baffle (940). When the detection mechanism (500) detects an unqualified bearing (130), the fourth cylinder (910) drives the baffle (940) to be drawn out of the groove (960), and the unqualified bearing (130) falls into the second chute (930) along the perforation (970) at the bottom of the groove (960), thereby entering the entrance of the second coding area (950). The fifth cylinder (920) is arranged at the entrance of the second coding area (950) and is used to push the unqualified bearing (130) into the second coding area (950).

9. A method for bearing surface strengthening and defect detection, characterized in that: Using the bearing surface strengthening and defect detection device described in claim 8, the method is as follows: S1, in the initial position, the first clamping groove (251) on the workpiece moving unit close to the feeding mechanism (300) is aligned with the bearing (130) on the feeding mechanism (300), and the second driving unit drives the workpiece moving unit to move in a direction close to the conveying platform (600), so that the bearing (130) is clamped in the first clamping groove (251) on the workpiece moving unit close to the feeding mechanism (300); S2, the first driving unit drives the workpiece moving unit to move a first distance in a direction away from the loading mechanism (300), thereby driving the bearing (130) to move a first distance toward the end of the conveying platform (600); S3, the second driving unit drives the workpiece moving unit to move in a direction away from the conveying platform (600), so that the bearing (130) is disengaged from the first clamping groove (251) on the workpiece moving unit close to the feeding mechanism (300); S4, the first driving unit drives the workpiece moving unit to move a first distance in a direction close to the feeding mechanism (300), the bearing (130) located on the conveying platform (600) is aligned with the second slot (251) on the workpiece moving unit close to the feeding mechanism (300), and the first slot (251) on the workpiece moving unit close to the feeding mechanism (300) is aligned with the next bearing on the feeding mechanism (300); S5, when the bearing (130) passes through the first workstation, the first rotating lifting assembly (700) drives the bearing (130) to lift and rotate, and the laser quenching mechanism (400) quenches the surface of the bearing (130); S6. When the bearing (130) passes through the second station, the second rotating lifting assembly (710) drives the bearing (130) to lift and rotate, and the detection mechanism (500) detects the bearing (130); S7. The bearings (130) that pass the inspection enter the OK coding mechanism, and the bearings (130) that fail the inspection enter the NG coding mechanism.

10. The method for bearing surface strengthening and defect detection according to claim 9, characterized in that: Repeat steps S1-S4 to transport the plurality of bearings (130) on the loading mechanism (300) to the conveying platform (600) in sequence.

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