A bearing outer ring sorting device for the bearing outer ring groove grinding process

Abstract

The present invention discloses a bearing outer ring sorting device for use in a bearing outer ring groove grinding process, comprising a platform, a workpiece measuring mechanism, a defective product rejection mechanism, a workpiece transport mechanism, and a PLC controller. The platform is provided with a measuring station and a rejection station, and is provided with a first slotted hole and a second slotted hole extending vertically therethrough, the first slotted hole and the second slotted hole being provided at the measuring station and the rejection station, respectively. The workpiece measuring mechanism comprises a caliper probe, a lifting cylinder, a measuring cylinder, and a measuring sensor, and the defective product rejection mechanism comprises a material storage rack, a material storage rod, a one-way passage mechanism, a workpiece lifting platform, and a lifting cylinder. The sorting device can achieve a measurement accuracy of 0.01 mm for bearing outer rings, and can automatically identify and reject defective products and mixing of bearing outer ring materials caused by other processes, effectively avoiding collisions, equipment damage, and safety accidents caused by abnormal workpieces entering the grinding machine. The device also has high sorting efficiency, ensuring the efficiency and yield of the bearing outer ring groove finishing process.

Description

Technical Field

[0001] The present invention relates to a bearing outer ring sorting device, in particular to a bearing outer ring sorting device used in a bearing outer ring groove grinding process. Background Art

[0002] A bearing typically consists of an outer ring, inner ring, steel balls, a cage, and a sealing ring. The inner surface of the outer ring is equipped with an annular groove and dustproof groove. The groove has an arc-shaped cross-section that matches the diameter of the steel ball. After the bearing is assembled, one side of the steel ball engages the groove and contacts the groove surface. After the bearing outer ring is rough-machined by lathe to form the groove, it is then fine-ground on a grinder. During fine-grinding of the bearing outer ring groove, the grinding allowance is small, only approximately 0.15mm. Due to the preceding lathe process of fine grinding, defective products such as no groove, large groove allowance, off-center groove, or no dustproof groove may occur. Alternatively, materials may be mixed with the bearing outer ring due to other processes. These abnormal parts, when fed onto the loading tray and fed into the grinder during fine-grinding of the bearing outer ring groove, can cause collisions. In severe cases, this can damage the equipment or cause safety accidents. In the existing bearing production process, the outer ring groove grinding of the bearing is an automated continuous operation. Before the workpieces enter the grinder, they cannot be fully pre-inspected and sorted. Batch manual inspection can only be carried out after an abnormality is found, which is inefficient and costly. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a bearing outer ring sorting device for the bearing outer ring groove grinding process in view of the shortcomings of the existing technology. The sorting device can automatically identify and remove abnormal workpieces, thereby ensuring the efficiency and yield of the bearing outer ring groove fine grinding process.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: a bearing outer ring sorting device for a bearing outer ring groove grinding process, comprising a platform, a workpiece measuring mechanism, a defective product rejection mechanism, a workpiece transport mechanism and a PLC controller, wherein the platform is provided with a measuring station and a rejection station, and the platform is provided with a first slotted hole and a second slotted hole running vertically therethrough, wherein the first slotted hole and the second slotted hole are respectively provided at the measuring station and the rejection station;

[0005] The workpiece measuring mechanism includes a caliper probe, a rising cylinder, a measuring cylinder and a measuring sensor. The rising cylinder is uprightly arranged below the platform. The caliper probe is vertically penetrated through the first slot. The lower end of the caliper probe is connected to the cylinder rod of the rising cylinder. The upper end of the caliper probe is inlaid with a steel ball. The outer side surface of the upper end of the caliper probe is a measuring surface. The contour of the measuring surface is consistent with the contour of the cross section of the outer ring groove of a qualified bearing. The cylinder body of the rising cylinder is fixed on a bracket. A linear slider is fixed on the bracket. A linear guide rail is installed at the bottom of the platform. The linear slider can move forward and backward The bearing is movably mounted on the linear guide rail, a limit screw and a signaling rod are mounted on the bracket, an upright fixed plate is mounted on the platform, the fixed plate is connected to the bracket via a transversely arranged tension spring, the measuring cylinder and the measuring sensor are respectively transversely mounted on the fixed plate, the cylinder rod of the measuring cylinder faces the limit screw, the measuring cylinder is used to push the bracket to move back and forth in a straight line, the measuring sensor faces the signaling rod, and the signaling rod is used to trigger the measuring sensor to send a signal to the PLC controller, and the PLC controller determines whether the outer ring of the bearing is a qualified product;

[0006] The defective product rejection mechanism includes a storage rack, a storage rod, a one-way passage mechanism, a workpiece lifting platform and a lifting cylinder. The storage rack is arranged on the rear side of the platform, the storage rod is suspended on the storage rack, the outer diameter of the storage rod is smaller than the inner diameter of the bearing outer ring, the one-way passage mechanism is arranged directly below the storage rod, and the one-way passage mechanism only allows defective products of the bearing outer ring to pass upward in one direction to be sleeved on the storage rod. The lifting cylinder is uprightly installed at the bottom of the platform, the workpiece lifting platform is connected to the cylinder rod of the lifting cylinder, the workpiece lifting platform can extend up and down into and out of the second slot, and the workpiece lifting platform is located directly below the one-way passage mechanism.

[0007] The workpiece transport mechanism is used to move the bearing outer ring to be tested to the measuring station, move the bearing outer ring that fails the measurement to the rejection station, and move the bearing outer ring that passes the measurement to the feeding system of the grinding machine.

[0008] The working principle of the bearing outer ring sorting device of the present invention is as follows: 1) when the workpiece measuring mechanism is not working, the measuring cylinder is pushed out and the limit screw is pushed, so that the bracket together with the rising cylinder, the caliper probe and the linear slide move backward along the linear guide rail and away from the fixed plate, and the front and rear movement distance of the caliper probe is controlled by the limit screw, and the caliper probe is driven downward by the rising cylinder to make the upper end face of the caliper probe return to the original position in the first slot hole. At the same time, the defective product rejection mechanism does not work, and the upper end face of the workpiece lifting platform is flush with the upper end face of the platform; 2) when the workpiece measuring mechanism is working, the workpiece transport mechanism moves the bearing outer ring to be inspected to the measuring station, and then the rising cylinder works to drive the caliper probe to move upward until the caliper probe extends from the first slot hole. When the measuring surface on the caliper probe is facing the position of the bearing outer ring groove, the measuring cylinder retracts, and under the tension of the tension spring, the bracket drives the rising cylinder, the caliper probe and the linear slide to move forward along the linear guide rail. When the steel ball on the probe contacts the groove of the outer ring of the bearing, the teeth of the dustproof groove on the caliper probe are inserted into the dustproof groove of the outer ring of the bearing. At this time, the measuring surface on the caliper probe is in close contact with the groove of the outer ring of the bearing, completing the measurement action. The sending rod contacts the measuring sensor, and the measuring sensor sends the signal to the PLC controller. The PLC controller converts the signal into data and determines whether the product is qualified. If it is judged to be unqualified, the workpiece handling mechanism is controlled to move the unqualified bearing outer ring to the workpiece lifting platform of the rejection station. The workpiece lifting platform is lifted upward by the lifting cylinder, so that the unqualified bearing outer ring passes through the one-way passage mechanism upward and is then put on the storage rod. As the sorting proceeds, if the cumulative number of unqualified products increases, they will be stacked on the storage rod one by one for storage; if it is judged to be qualified, the workpiece handling mechanism is controlled to move the qualified bearing outer ring directly to the feeding system of the grinder, and it is transported to the grinder through the feeding system for fine grinding of the bearing outer ring groove.

[0009] The bearing outer ring sorting device of the present invention can measure the bearing outer ring with an accuracy of up to 0.01mm. It can automatically identify and remove defective products such as those without grooves, those with large groove margins, deviated grooves, those without dustproof grooves, and those mixed with bearing outer rings caused by other processes, effectively avoiding collisions, equipment damage and safety accidents caused by abnormal workpieces entering the grinder online. The device has high sorting efficiency, which can ensure the efficiency and yield of the fine grinding of the bearing outer ring grooves.

[0010] Preferably, the one-way passage mechanism includes a caliper sleeve, and the caliper sleeve includes an upper ring sleeve, a lower ring sleeve and three caliper claws. The upper ring sleeve is stacked and fixed on the lower ring sleeve, and the lower ring sleeve is fixed on a base. The base is installed on the storage rack. A avoidance hole is provided on the base. The inner diameter of the upper ring sleeve and the inner diameter of the lower ring sleeve are respectively adapted to the outer diameter of the bearing outer ring. The inner hole of the upper ring sleeve, the inner hole of the lower ring sleeve and the avoidance hole are connected up and down. The workpiece lifting platform is located directly below the avoidance hole of the lower ring sleeve, and the side wall of the lower ring sleeve is evenly spaced. There are three radial through slots, a caliper shaft passes through each of the radial through slots, a caliper claw is fixed to the inner end of each caliper shaft, a limiting ring is fixed to the outer end of each caliper shaft, the outer diameter of the limiting ring is larger than the outer diameter of the radial through slot, and a spring is sleeved on each of the caliper shafts. The inner surface of each caliper claw is an inclined surface that is inclined from bottom to top toward the radial inner side of the lower ring sleeve. When each of the springs is naturally stretched, the top end of each inclined surface extends horizontally into the inner hole of the lower ring sleeve by 2 mm, and the bottom end of each inclined surface does not extend into the inner hole of the lower ring sleeve. When a defective product is measured, the workpiece handling mechanism moves it to the workpiece lifting platform at the rejection station. The lifting cylinder then lifts the platform upward, causing the defective outer ring of the bearing to move upward. After passing through the avoidance hole on the base, the outer ring of the bearing pushes the inner surface of the three caliper claws, causing the three caliper claws to move radially along the lower ring sleeve. At the same time, the spring is compressed. After the outer ring of the bearing passes through the lower ring sleeve, the three caliper claws return to their initial positions under the elastic force of the spring. The above-mentioned caliper sleeve has a simple structure, and its three caliper claws can move radially along the lower ring sleeve and have a certain degree of rebound elasticity, which ensures that defective products of the bearing outer ring can only pass through the caliper sleeve in a single direction from bottom to top and will not fall downward.

[0011] Preferably, the diameter of the steel ball is 0.3 mm smaller than the diameter of the cross section of the outer ring groove of a qualified bearing.

[0012] Preferably, upright side panels are fixed to the platform, and a V-shaped groove is provided on the side panel near the measuring station for positioning the bearing outer ring to be tested. When the workpiece handling mechanism moves the bearing outer ring to be tested to the measuring station, the bearing outer ring to be tested contacts the V-shaped groove, forming a fixed position, which helps to ensure measurement accuracy.

[0013] Preferably, the storage rack includes two upright support rods arranged opposite to each other, a support plate is fixed to the top of each support rod, a gap is formed between the two support plates, a connecting plate is fixed to the top of the storage rod, the width of the connecting plate is greater than the width of the gap, the connecting plate spans both sides of the gap and is mounted on the two support plates. The storage rack has a simple structure and is convenient for taking and placing the storage rods. When the number of defective products stacked on the storage rods reaches a certain level, the connecting plate and the storage rods can be horizontally moved out of the gap, and after removing the defective products, the connecting plate and the storage rods can be reinstalled on the storage rack, which is easy to operate.

[0014] Preferably, the bracket comprises a horizontal portion and a vertical portion integrally arranged vertically, the linear slider being fixed to the horizontal portion, the cylinder body, limit screw, and signaling rod of the lifting cylinder being fixed to the vertical portion, and the fixing plate being connected to the vertical portion via the tension spring. The bracket has a simple structure and facilitates assembly of the linear slider, cylinder body, limit screw, signaling rod, tension spring, and other components.

[0015] Preferably, the caliper gauge head is made of tungsten steel, and the steel ball is made of tungsten steel. Tungsten steel is wear-resistant and has a high hardness, which can ensure the service life of the caliper gauge head and the steel ball.

[0016] Compared with the prior art, the present invention has the following advantages: the bearing outer ring sorting device for the bearing outer ring groove grinding process of the present invention is equipped with a measuring station and a rejecting station, and a workpiece measuring mechanism and a defective product rejecting mechanism are respectively arranged at the measuring station and the rejecting station. The measurement accuracy of the bearing outer ring can reach 0.01mm, and defective products such as no groove, large groove margin, biased groove, no dustproof groove, and mixed bearing outer rings caused by other processes can be automatically identified and rejected, effectively avoiding collisions, equipment damage and safety accidents caused by abnormal workpieces entering the grinding machine online, and the sorting efficiency is high, which can ensure the efficiency and yield of the bearing outer ring groove fine grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a partial cross-sectional front view of the sorting device in the embodiment;

[0018] Figure 2 For the enlarged Figure 1 Middle K-direction view (non-measurement state);

[0019] Figure 3 For the enlarged Figure 1 Middle K-direction view (measurement status);

[0020] Figure 4 For the enlarged Figure 1 A partial top view of the culling station;

[0021] Figure 5 for Figure 4 Middle AA section view;

[0022] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0023] Figure 7 For the enlarged Figure 1 Partial top view of the measuring station;

[0024] Figure 8 for Figure 7 Enlarged view of point C in the middle. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0026] The bearing outer ring groove grinding process of the embodiment uses a bearing outer ring sorting device, such as Figures 1 to 8 As shown, it includes a platform 1, a workpiece measuring mechanism, a defective product rejection mechanism, a workpiece transport mechanism 4 and a PLC controller (not shown in the figure). The platform 1 is provided with a measuring station 11 and a rejection station 12 ( Figure 1 The platform positions corresponding to the arrows marked 11 and 12 are the measuring station and the rejecting station, respectively. A first slot hole 13 and a second slot hole 14 are provided on the platform 1, which pass through the platform 1 from top to bottom. The first slot hole 13 and the second slot hole 14 are respectively provided at the measuring station 11 and the rejecting station 12. An upright side baffle 15 is fixed on the platform 1. A V-groove 16 is provided on the side baffle 15 close to the measuring station 11 for positioning the bearing outer ring 7 to be inspected.

[0027] In this embodiment, the workpiece measuring mechanism includes a caliper probe 21 made of tungsten steel, a rising cylinder 22, a measuring cylinder 23 and a measuring sensor 24. The rising cylinder 22 is upright below the platform 1. The caliper probe 21 is vertically penetrated into the first slot 13. The width of the first slot 13 is 3.5 mm. The lower end of the caliper probe 21 is connected to the cylinder rod of the rising cylinder 22. The upper end of the caliper probe 21 is inlaid with a steel ball 25 made of tungsten steel. The diameter of the steel ball 25 is 0.3 mm smaller than the diameter of the cross section of the qualified bearing outer ring groove 71. The outer side surface of the upper end of the caliper probe 21 is a measuring surface 26. The contour of the measuring surface 26 is consistent with the contour of the cross section of the qualified bearing outer ring groove 71. The cylinder body of the rising cylinder 22 is fixed on a bracket 3. A linear slider 41 is fixed on the bracket 3, a linear guide rail 42 is installed at the bottom of the platform 1, the linear slider 41 can be installed on the linear guide rail 42 so as to move linearly forward and backward, a limit screw 43 and a signaling rod 44 are installed on the bracket 3, an upright fixed plate 17 is installed on the platform 1, the fixed plate 17 is connected to the bracket 3 through a transversely arranged tension spring 18, the measuring cylinder 23 and the measuring sensor 24 are respectively installed transversely on the fixed plate 17, the cylinder rod of the measuring cylinder 23 is facing the limit screw 43, the measuring cylinder 23 is used to push the bracket 3 to move linearly forward and backward, the measuring sensor 24 is facing the signaling rod 44, the signaling rod 44 is used to trigger the measuring sensor 24 to send a signal to the PLC controller, and the PLC controller determines whether the bearing outer ring 7 is a qualified product. In a specific embodiment, the bracket 3 includes a horizontal part 31 and a vertical part 32 that are integrally arranged vertically, the linear slider 41 is fixed on the horizontal part 31, the cylinder body, the limiting screw 43 and the sending rod 44 of the rising cylinder 22 are respectively fixed on the vertical part 32, and the fixing plate 17 is connected to the vertical part 32 via the tension spring 18.

[0028] In this embodiment, the defective product rejection mechanism includes a storage rack 51, a storage rod 52, a one-way passage mechanism, a workpiece lifting platform 53 and a lifting cylinder 54. The storage rack 51 is arranged on the rear side of the platform 1, and the storage rod 52 is suspended on the storage rack 51. The outer diameter of the storage rod 52 is smaller than the inner diameter of the bearing outer ring 7. The one-way passage mechanism is arranged directly below the storage rod 52. The one-way passage mechanism only allows defective products of the bearing outer ring 7 to pass upward in one direction to be sleeved on the storage rod 52. The lifting cylinder 54 is upright installed at the bottom of the platform 1, and the workpiece lifting platform 53 is connected to the cylinder rod of the lifting cylinder 54. The workpiece lifting platform 53 can extend up and down into and out of the second slot 14, and the workpiece lifting platform 53 is located directly below the one-way passage mechanism. In a specific embodiment, the storage rack 51 includes two upright support rods 55 arranged opposite to each other, and a support plate 56 is fixed to the top of each support rod 55, with a gap 57 between the two support plates 56, and a connecting plate 58 is fixed to the top of the storage rod 52. The width of the connecting plate 58 is greater than the width of the gap 57, and the connecting plate 58 spans both sides of the gap 57 and is mounted on the two support plates 56.

[0029] In this embodiment, the workpiece transport mechanism 4 is used to move the bearing outer ring 7 to be tested to the measuring station 11, move the unqualified bearing outer ring 7 to the rejection station 12, and move the qualified bearing outer ring 7 to the feeding system of the grinding machine. The workpiece transport mechanism 4 adopts the existing technology. Figure 7 Only the partial structure for clamping the bearing outer ring 7 is briefly shown.

[0030] In this embodiment, the one-way passage mechanism includes a caliper sleeve 6, which includes an upper ring sleeve 61, a lower ring sleeve 62 and three caliper claws 63. The upper ring sleeve 61 is stacked and fixed on the lower ring sleeve 62, and the lower ring sleeve 62 is fixed on a base 64. The base 64 is installed on the storage rack 51, and an avoidance hole 65 is opened on the base 64. The inner diameter of the upper ring sleeve 61 and the inner diameter of the lower ring sleeve 62 are respectively adapted to the outer diameter of the bearing outer ring 7. The inner hole 611 of the upper ring sleeve 61, the inner hole 621 of the lower ring sleeve 62 and the avoidance hole 65 are connected up and down. The workpiece lifting platform 53 is located directly below the avoidance hole 65 of the lower ring sleeve 62, and the side wall of the lower ring sleeve 62 is evenly spaced. There are three radial through slots 66, each of which has a caliper shaft 67 running through it. A caliper claw 63 is fixed to the inner end of each caliper shaft 67, and a limit ring 68 is fixed to the outer end of each caliper shaft 67. The outer diameter of the limit ring 68 is larger than the outer diameter of the radial through slot 66. A spring 69 is sleeved on each caliper shaft 67. The inner surface of each caliper claw 63 is an inclined surface 60 slanting from bottom to top toward the radial inner side of the lower ring sleeve 62. When each spring 69 is naturally extended, the top end of each inclined surface 60 extends horizontally into the inner hole 621 of the lower ring sleeve 62 by a distance S of 2 mm, and the bottom end of each inclined surface 60 does not extend into the inner hole 621 of the lower ring sleeve 62.

[0031] When the workpiece measuring mechanism is not working, Figure 2 As shown, the measuring cylinder 23 is pushed out, pushing the limit screw 43, so that the bracket 3 together with the rising cylinder 22, the caliper probe 21, and the linear slider 41 move backward along the linear guide rail 42, away from the fixed plate 17, and the front and rear moving distance of the caliper probe 21 is controlled by the limit screw 43, and the caliper probe 21 is driven by the rising cylinder 22 to move downward, so that the upper end face of the caliper probe 21 returns to its original position in the first slot 13. At the same time, the defective product rejection mechanism does not work, and the upper end face of the workpiece lifting platform 53 is flush with the upper end face of the platform 1.

[0032] When the workpiece measuring mechanism is working, the workpiece transport mechanism 4 moves the bearing outer ring 7 to be tested to the measuring station 11, and the V-groove 16 on the side baffle 15 forms a position for the bearing outer ring 7 to be tested. Then, the rising cylinder 22 works to drive the caliper probe 21 to move upward until the caliper probe 21 extends from the first slot 13. When the measuring surface 26 on the caliper probe 21 is facing the position of the bearing outer ring groove 71, the measuring cylinder 23 retreats. Under the tension of the tension spring 18, the bracket 3 drives the rising cylinder 22, the caliper probe 21, and the linear slide 41 to move forward along the linear guide rail 42. When the steel ball 25 on the caliper probe 21 contacts the bearing outer ring groove 71, as shown in FIG. Figure 3 As shown, the teeth of the dustproof groove on the caliper probe 21 are inserted into the dustproof groove of the bearing outer ring 7. At this time, the measuring surface 26 on the caliper probe 21 is in close contact with the bearing outer ring groove 71, completing the measurement action. The signal transmitting rod 44 contacts the measuring sensor 24, and the measuring sensor 24 sends a signal to the PLC controller. The PLC controller converts the signal into data and determines whether the product is qualified. If it is determined to be unqualified, the workpiece handling mechanism 4 is controlled to move the unqualified bearing outer ring 7 to the workpiece lifting platform 53 at the rejection station 12. The lifting cylinder 54 raises the workpiece lifting platform 53 upward, causing the unqualified bearing outer ring 7 to move upward, pass through the avoidance hole 65 on the base 64, pass through the lower ring 62 in one direction, and then pass through the upper ring 61 to be enclosed on the storage rod 52. As the sorting process progresses, if the cumulative number of unqualified products increases, they will be stacked one by one on the storage rod 52 for storage. If it is determined to be a qualified product, the workpiece transport mechanism 4 is controlled to directly move the qualified bearing outer ring 7 to the loading system of the grinding machine, and then transported to the grinding machine through the loading system for fine grinding of the bearing outer ring groove 71.

Claims

1. A bearing outer ring sorting device for a bearing outer ring groove grinding process, characterized in that: The system comprises a platform, a workpiece measuring mechanism, a defective product rejecting mechanism, a workpiece transporting mechanism and a PLC controller. The platform is provided with a measuring station and a rejecting station. The platform is provided with a first slot hole and a second slot hole running through the platform from top to bottom. The first slot hole and the second slot hole are respectively provided at the measuring station and the rejecting station. The workpiece measuring mechanism includes a caliper probe, a rising cylinder, a measuring cylinder and a measuring sensor. The rising cylinder is uprightly arranged below the platform. The caliper probe is vertically penetrated through the first slot. The lower end of the caliper probe is connected to the cylinder rod of the rising cylinder. The upper end of the caliper probe is inlaid with a steel ball. The outer side surface of the upper end of the caliper probe is a measuring surface. The contour of the measuring surface is consistent with the contour of the cross section of the outer ring groove of a qualified bearing. The cylinder body of the rising cylinder is fixed on a bracket. A linear slider is fixed on the bracket. A linear guide rail is installed at the bottom of the platform. The linear slider can move forward and backward The bearing is movably mounted on the linear guide rail, a limit screw and a signaling rod are mounted on the bracket, an upright fixed plate is mounted on the platform, the fixed plate is connected to the bracket via a transversely arranged tension spring, the measuring cylinder and the measuring sensor are respectively transversely mounted on the fixed plate, the cylinder rod of the measuring cylinder faces the limit screw, the measuring cylinder is used to push the bracket to move back and forth in a straight line, the measuring sensor faces the signaling rod, and the signaling rod is used to trigger the measuring sensor to send a signal to the PLC controller, and the PLC controller determines whether the outer ring of the bearing is a qualified product; The defective product rejection mechanism includes a storage rack, a storage rod, a one-way passage mechanism, a workpiece lifting platform and a lifting cylinder. The storage rack is arranged on the rear side of the platform, the storage rod is suspended on the storage rack, the outer diameter of the storage rod is smaller than the inner diameter of the bearing outer ring, the one-way passage mechanism is arranged directly below the storage rod, the one-way passage mechanism only allows defective products of the bearing outer ring to pass upward in one direction to be sleeved on the storage rod, the lifting cylinder is upright installed at the bottom of the platform, the workpiece lifting platform is connected to the cylinder rod of the lifting cylinder, the workpiece lifting platform can extend up and down into and out of the second slot, and the workpiece lifting platform is located directly below the one-way passage mechanism; the one-way passage mechanism includes a caliper sleeve, the caliper sleeve includes an upper ring sleeve, a lower ring sleeve and three caliper claws, the upper ring sleeve is stacked and fixed on the lower ring sleeve, the lower ring sleeve is fixed on a base, and the base is installed in the The cam is provided with a plurality of grooves, each groove is provided with a plurality of grooves, each groove is provided with a plurality of grooves, each groove is provided with a plurality of grooves, each groove is provided with a plurality of grooves, and a plurality of grooves are provided on the cam. The workpiece transport mechanism is used to move the bearing outer ring to be tested to the measuring station, move the bearing outer ring that fails the measurement to the rejection station, and move the bearing outer ring that passes the measurement to the feeding system of the grinding machine.

2. The bearing outer ring sorting device for the bearing outer ring groove grinding process according to claim 1, characterized in that: The diameter of the steel ball is 0.3 mm smaller than the diameter of the cross section of the outer ring groove of a qualified bearing.

3. The bearing outer ring sorting device for the bearing outer ring groove grinding process according to claim 1, characterized in that: An upright side baffle is fixed on the platform, and a V-shaped groove for positioning the outer ring of the bearing to be tested is provided on the side baffle close to the measuring station.

4. The bearing outer ring sorting device for the bearing outer ring groove grinding process according to claim 1, characterized in that: The storage rack includes two upright support rods arranged facing each other, a support plate is fixed to the top of each support rod, and there is a gap between the two support plates. A connecting plate is fixed to the top of the storage rod, and the width of the connecting plate is greater than the width of the gap. The connecting plate spans both sides of the gap and is mounted on the two support plates.

5. The bearing outer ring sorting device for the bearing outer ring groove grinding process according to claim 1, characterized in that: The bracket includes a horizontal part and a vertical part that are vertically arranged as an integral whole. The linear slider is fixed on the horizontal part. The cylinder body, limit screw and sending rod of the rising cylinder are respectively fixed on the vertical part. The fixing plate is connected to the vertical part via the tension spring.

6. The bearing outer ring sorting device for the bearing outer ring groove grinding process according to claim 1, characterized in that: The caliper probe is made of tungsten steel, and the steel ball is made of tungsten steel.

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