Bearing outer ring drilling device

Abstract

The application relates to a bearing outer ring drilling processing device and belongs to the bearing outer ring processing device field. The device comprises a base and a material box. A bearing expansion clamp is arranged on the base. A cutting blade depth processing drilling machine is arranged on the base and located directly above the bearing expansion clamp. An upper feeding track is arranged on the base in an inclined mode. The bottom of the upper feeding track is provided with a clamping opening. A clamping unit is arranged on the base in a sliding mode along the axial direction of the bearing expansion clamp. The clamping unit is used for clamping the bearing outer ring at the bottom of the upper feeding track. The clamping unit penetrates through the clamping opening. The clamping unit is connected with a displacement unit. The application has the technical effects of improving the work efficiency and the processing precision.

Description

Technical Field

[0001] This application relates to the technical field of bearing outer ring machining apparatus, and in particular to a bearing outer ring drilling machining apparatus. Background Technology

[0002] During the production and processing of bearing outer rings, fixed-point drilling is required. Existing traditional processing methods mostly involve manual picking and placing, aligning and clamping of each bearing before drilling. This involves many manual steps, high labor intensity, and low work efficiency, making it difficult to meet the needs of large-scale continuous production.

[0003] Existing drilling equipment generally suffers from complex feeding structures, requiring additional drive and feeding mechanisms, resulting in large structural space occupation and high manufacturing costs. At the same time, workpiece feeding, transfer, and station docking largely rely on manual alignment, leading to poor positioning accuracy and easy clamping misalignment, which affects the drilling accuracy of bearing outer rings and product consistency.

[0004] Regarding the aforementioned technologies, the inventors believe that they suffer from drawbacks such as the need for manual feeding and poor positioning accuracy. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this application provides a bearing outer ring drilling apparatus.

[0006] This application provides a bearing outer ring drilling and machining device, which adopts the following technical solution: A bearing outer ring drilling device includes a base and a material box; a bearing expansion clamp is provided on the base; a cutting tool deep machining drill is slidably arranged on the base along the vertical direction; the cutting tool deep machining drill is located directly above the bearing expansion clamp; a feeding track is inclinedly arranged on the base; the bottom of the feeding track has a clamping opening; a clamping unit is slidably arranged on the base along the axial direction of the bearing expansion clamp; the clamping unit is used to clamp the bearing outer ring at the bottom of the feeding track; the clamping unit passes through the clamping opening; and a displacement unit is connected to the clamping unit.

[0007] By adopting the above technical solution, the bearing outer rings can be automatically rolled down sequentially by their own weight through the inclined feeding track. With precise limiting of the material output through the clamping port, there is no need to add a complex feeding drive mechanism. This allows for a continuous and orderly supply of bearing outer rings to the processing station, ensuring the needs of batch continuous drilling processing. The clamping unit and the displacement unit work together to automatically clamp the bearing outer rings at the feeding track, transfer them through the clamping port to the bearing expansion fixture station, and realize the full automation of bearing outer ring feeding, transfer and station docking. This eliminates manual handling and alignment operations, reduces labor intensity and improves work efficiency.

[0008] Preferably, the clamping unit includes a first cylinder, a slide rail, a clamping seat, a return spring, a first compression ring, and two expansion airbags; the first cylinder is mounted on the displacement unit; the slide rail is connected to the power output end of the first cylinder; the slide rail is coaxial with the bearing expansion clamp; the clamping seat is slidably mounted on the slide rail; the return spring is sleeved on the slide rail; a fixing plate is connected to the slide rail; both ends of the return spring are respectively connected to the clamping seat and the fixing plate; the first compression ring is sleeved on the clamping seat and connected to the fixing plate; the two expansion airbags are respectively mounted on the clamping seat; each of the two expansion airbags is connected to an air supply source; the peripheral sidewalls of the two expansion airbags abut against the inner walls at both ends of the outer ring of the bearing.

[0009] By adopting the above technical solution, the slide rail and the bearing expansion clamp are coaxially set, and the clamping unit accurately transports the bearing outer ring along the axial direction, ensuring the coaxiality of the bearing outer ring transfer, docking and clamping; the expansion airbags are used to abut and clamp the inner walls at both ends of the bearing outer ring, which is a flexible surface contact clamping method. The clamping force is uniform, avoiding the impact, scratches and deformation of the bearing outer ring caused by rigid clamping, and adapting to the centering and clamping requirements of bearing outer rings of different specifications.

[0010] Preferably, the clamping seat is provided with two limiting members; the limiting members are provided with annular grooves; the inflatable airbag is located in the annular grooves.

[0011] By adopting the above technical solution, the annular groove of the limiting component accurately limits the expansion airbag, preventing axial movement and displacement during airbag clamping, inflation and deflation, and bearing outer ring transportation, thus ensuring clamping stability; the annular groove forms a wrapping positioning for the expansion airbag, ensuring uniform force after the airbag is inflated, ensuring tight contact with the inner wall of the bearing outer ring, and improving clamping positioning accuracy.

[0012] Preferably, the bearing expansion clamp is provided with an abutment plate; a second compression ring is slidably provided on the bearing expansion clamp; a compression spring is sleeved on the bearing expansion clamp; and the two ends of the compression spring are respectively connected to the abutment plate and the second compression ring.

[0013] By adopting the above technical solution, the first extrusion ring and the sliding second extrusion ring form a bidirectional axial clamping and limiting mechanism. With the elastic pre-tightening of the extrusion spring, the outer ring of the bearing is precisely positioned twice, effectively preventing axial movement of the outer ring during transport and docking, and ensuring coaxial alignment accuracy with the bearing expansion fixture. Utilizing the elastic structure of the abutment plate, the extrusion spring, and the second extrusion ring, the bearing outer ring can be limited during clamping and automatically pushed back to the clamping seat by the elasticity of the spring after drilling, achieving a flexible and impact-free transfer of the bearing outer ring and avoiding rigid impact damage to the bearing outer ring.

[0014] Preferably, a baffle is connected between the fixing plate and the first compression ring.

[0015] By adopting the above technical solution, the baffle moves synchronously with the clamping unit, which can block and release the bottom of the feeding track in a timely manner, accurately control the falling sequence of the outer ring of the bearing to be processed, realize the orderly feeding of the outer ring of the single bearing, and avoid the accumulation of the outer ring of the bearing.

[0016] Preferably, the inflatable airbag is provided with a vent; a pressure relief valve is provided inside the vent, the pressure relief valve includes a vent housing, a vent rod, a sealing plate, and a vent spring; the vent housing is disposed inside the vent; a vent hole is formed on the vent housing; multiple sliding grooves are formed on the inner wall of the vent hole; sliders are respectively provided on the periphery of the vent rod; multiple sliders are slidably disposed in multiple sliding grooves; one end of the vent rod extends out of the vent hole and passes through the limiting member near the bearing expansion clamp; the sealing plate is disposed at the other end of the vent rod; the vent spring is sleeved on the vent rod, one end of the vent spring is connected to multiple sliders, and the other end is connected to the inner wall of the vent hole.

[0017] Preferably, the displacement unit includes a displacement guide rail, a second cylinder, and a slide block; the slide block is slidably disposed on the displacement guide rail; the first cylinder is disposed on the slide block; the second cylinder is disposed on the displacement guide rail; and the power output end of the second cylinder is connected to the slide block.

[0018] Preferably, the clamping seat is provided with a limiting plate; the fixing plate is provided with a stop plate; the limiting plate abuts against the stop plate.

[0019] By adopting the above technical solution, the clamping seat can be stably locked at the limit position at the end of the slide rail by the rigid contact between the limiting plate and the stop plate, and the return spring can push it normally, thus preventing the clamping seat from sliding out of its travel range.

[0020] Preferably, the material bin is provided with a discharge plate.

[0021] By adopting the above technical solution, after the inflatable airbag deflates and contracts, the outer ring of the bearing falls smoothly into the clamping seat by its own weight; after being pushed away by the unloading plate, the outer ring of the bearing falls directly into the material box by its own weight, automatically completing the finished product collection without the need for manual picking and transportation, thus reducing labor intensity.

[0022] Preferably, the base is provided with a nozzle; the nozzle is connected to a gear pump; the gear pump is located inside a storage tank; the storage tank contains cutting fluid.

[0023] By adopting the above technical solution, a cutting fluid spraying mechanism is formed by a storage tank, a gear pump and a nozzle. During drilling, cutting fluid is accurately sprayed onto the drilling position, which can cool down the temperature, lubricate the tool and flush away iron filings, thereby improving drilling accuracy and tool life.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. The inclined feeding track allows the bearing outer rings to automatically roll down sequentially based on their own weight. Combined with precise positioning at the clamping port, the bearings can be fed continuously and systematically to the machining station without the need for an additional complex feeding drive mechanism, ensuring the needs of batch continuous drilling. The clamping unit, in conjunction with the displacement unit, automatically clamps the bearing outer rings at the feeding track, transfers them through the clamping port to the bearing expansion fixture station, achieving full automation of bearing outer ring feeding, transfer, and station docking. This eliminates manual handling and alignment operations, reduces labor intensity, and improves work efficiency.

[0025] 2. The first extrusion ring and the sliding second extrusion ring form a bidirectional axial clamping and limiting mechanism. With the elastic pre-tightening of the extrusion spring, the outer ring of the bearing is precisely positioned twice, effectively preventing axial movement during the transfer and docking of the outer ring and ensuring coaxial alignment accuracy with the bearing expansion fixture. Utilizing the elastic structure of the abutment plate, the extrusion spring, and the second extrusion ring, the bearing outer ring can be limited during clamping and automatically pushed back to the clamping seat by the elasticity of the spring after drilling. This achieves a flexible and impact-free transfer of the bearing outer ring and avoids rigid impact damage to the bearing outer ring. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a bearing outer ring drilling and machining device.

[0027] Figure 2 This is a schematic diagram of the bearing outer ring at the bottom of the feeding track in the embodiment when it is not clamped.

[0028] Figure 3 This is a schematic diagram of the clamping unit in the embodiment.

[0029] Figure 4 This is a schematic diagram of the clamping seat in the embodiment.

[0030] Figure 5 This is a schematic diagram of the structure of the adjustment seat in the embodiment.

[0031] Figure 6 yes Figure 5 A magnified view of part B in the image.

[0032] Figure 7 This is a schematic diagram of the structure of the driving airbag in the embodiment.

[0033] Figure 8 This is a schematic diagram of the structure of the first compression ring in the embodiment.

[0034] Figure 9 This is a schematic diagram of the structure of the inflatable airbag in the embodiment.

[0035] Figure 10 yes Figure 1 A magnified view of part A in the image.

[0036] Figure 11 yes Figure 4 A magnified view of part C.

[0037] Explanation of reference numerals in the attached figures: 1. Base; 11. Nozzle; 2. Material box; 21. Unloading plate; 22. Pressure plate; 3. Bearing expansion clamp; 31. Abutment plate; 32. Second extrusion ring; 33. Extrusion spring; 4. Drilling machine for deep machining of cutting blades; 5. Feeding track; 51. Clamping port; 6. Clamping unit; 61. First cylinder; 611. First chamber; 612. Second chamber; 62. Slide rail; 621. Fixing plate; 6211. Stop plate; 622. Baffle; 63. Clamping seat; 631. Limiting component; 6311. Annular groove; 632. Limiting plate; 633. Air outlet ; 634, Air passage; 64, Return spring; 65, First compression ring; 651, Groove; 652, Drive airbag; 66, Inflatable airbag; 661, Receiving groove; 7, Displacement unit; 71, Displacement guide rail; 72, Second cylinder; 73, Slide seat; 8, Bearing outer ring; 8, Adjusting seat; 81, Connecting hole; 82, Sliding hole; 83, Adjusting rod; 831, Adjusting hole; 832, Pressure relief piston; 84, Adjusting spring; 9, Pressure relief valve; 91, Air relief housing; 911, Air relief hole; 92, Air relief rod; 921, Slider; 93, Sealing plate; 94, Air relief spring. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-11 This application will be described in further detail.

[0039] This application discloses a drilling apparatus for the outer ring 8 of a bearing. (Refer to...) Figure 1-2The system includes a base 1 and a material box 2. A bearing expansion clamp 3 is installed on the base 1. A drilling machine 4 for deep machining of cutting tools is installed on the base 1. The drilling machine 4 for deep machining of cutting tools is located directly above the bearing expansion clamp 3. The drilling machine 4 for deep machining of cutting tools can drill holes in the bearing outer ring 8 on the bearing expansion clamp 3. A feeding track 5 is inclinedly installed on the base 1. The bottom of the feeding track 5 has a clamping port 51. A batch of bearing outer rings 8 to be processed are neatly stacked inside the inclined feeding track 5. Relying on their own gravity, the bearing outer rings 8 roll freely down the inclined slope of the feeding track 5 one by one and are transported to the clamping port 51 at the bottom of the feeding track 5 in an orderly manner. When the bearing outer ring 8 at the clamping port 51 is not clamped, the bearing outer ring 8 is not directly facing the clamping port 51, but is lower than the clamping port 51. The side wall of the feeding track 5 can block the bearing outer ring 8 and prevent it from falling from the clamping port 51.

[0040] A clamping unit 6 is slidably mounted on the base 1 along the axial direction of the bearing expansion clamp 3; the clamping unit 6 is used to clamp the bearing outer ring 8 at the bottom of the loading track 5; after the clamping unit 6 passes through the clamping port 51, it brings the bearing outer ring 8 to the bearing expansion clamp 3; the clamping unit 6 is connected to a displacement unit 7; after the drilling machine 4 for deep machining of the cutting tool has finished drilling the hole, the bearing expansion clamp 3 releases the bearing outer ring 8, the clamping unit 6 clamps the bearing outer ring 8 and moves it away from the bearing expansion clamp 3; the displacement unit 7 can drive the clamping unit 6 to move to the material box 2 and place the machined bearing outer ring 8 into the material box 2.

[0041] The displacement unit 7 includes a displacement guide rail 71, a second cylinder 72, and a slide block 73; the slide block 73 is slidably mounted on the displacement guide rail 71; the first cylinder 61 is mounted on the slide block 73; the second cylinder 72 is mounted on the displacement guide rail 71; and the power output end of the second cylinder 72 is connected to the slide block 73.

[0042] It should be noted that the first cylinder 61 and the second cylinder 72 are respectively connected to the air supply source through solenoid valves; and the working principle of the air supply source, solenoid valve and internal parts of the cylinder when the cylinder is working is common knowledge to those skilled in the art, and will not be described in detail here.

[0043] Reference Figures 3 to 9The clamping unit 6 includes a first cylinder 61, a slide rail 62, a clamping seat 63, a return spring 64, a first compression ring 65, and two expansion airbags 66. The first cylinder 61 is mounted on the slide seat 73 of the displacement unit 7. The slide rail 62 is connected to the power output end of the first cylinder 61. The slide rail 62 is coaxial with the bearing expansion clamp 3. The clamping seat 63 is slidably mounted on the slide rail 62. The return spring 64 is sleeved on the slide rail 62. A limit plate 632 is provided on the clamping seat 63. A stop plate 6211 is provided on the fixing plate 621. Under normal conditions, the return spring 64 always pushes the clamping seat 63 to slide towards the bearing expansion clamp 3, so that the end of the clamping seat 63... The part extends out of the slide rail 62. When the limiting plate 632 and the stop plate 6211 rigidly abut against each other, the clamping seat 63 is locked at the extreme position at the end of the slide rail 62 to prevent slippage. A fixing plate 621 is connected to the slide rail 62. The two ends of the return spring 64 are respectively connected to the clamping seat 63 and the fixing plate 621. Two limiting members 631 are provided on the clamping seat 63. An annular groove 6311 is opened on the limiting member 631. The inflatable airbag 66 is made of rubber. The two inflatable airbags 66 are respectively set on the clamping seat 63 and are respectively located in the two annular grooves 6311. The first compression ring 65 is sleeved on the clamping seat 63 and connected to the fixing plate 621.

[0044] A groove 651 is formed on the side wall of the first compression ring 65 near the bearing expansion clamp 3; a driving airbag 652 is disposed in the groove 651. The piston in the first cylinder 61 divides the interior of the first cylinder 61 into two chambers, the chamber away from the clamping seat 63 is defined as the first chamber 611; the other chamber is defined as the second chamber 612; a pressure relief hole is formed on the side wall of the first chamber 611; an adjusting seat 8 is provided on the first cylinder 61; a connecting hole 81 is formed on the adjusting seat 8; one end of the connecting hole 81 communicates with the pressure relief hole, and the other end communicates with any expansion airbag 66; a sliding hole 82 is formed on the adjusting seat 8 that communicates with the connecting hole 81; the sliding hole One end of 82 is connected to any inflatable airbag 66; an adjusting rod 83 is slidably disposed in the sliding hole 82; an adjusting hole 831 is provided on the adjusting rod 83; a pressure relief piston 832 is provided at one end of the adjusting rod 83; an adjusting spring 84 is connected between the adjusting rod 83 and the adjusting seat 8; in the initial state, the adjusting spring 84 squeezes the adjusting rod 83 to move towards the pressure relief piston 832; at this time, the adjusting hole 831 is misaligned with the connecting hole 81, and the adjusting rod 83 isolates the connecting hole 81; the inflatable airbag 66 is in a contracted state.

[0045] When it is necessary to clamp the outer ring 8 of the bearing, the air supply source introduces air pressure into the first chamber 611. The first cylinder 61 extends and pushes the slide rail 62 to move linearly towards the clamping port 51, driving the clamping seat 63 to move forward synchronously. This precisely delivers the two contracted expansion airbags 66 on the clamping seat 63 into the inner ring cavity of the outer ring 8 of the bearing to be processed. As the clamping seat 63 moves, the uppermost drive airbag 652 on the first compression ring 65 contacts and is compressed against the outer ring 8 of the bearing. The gas in the compressed drive airbag 652 flows into the second piston of the slide hole 82 and compresses the second piston and the adjusting rod 83, overcoming the elastic force of the adjusting spring 84 and moving towards the first piston. At this time, the gas in the first chamber 611... As the air pressure decreases, the first cylinder 61 can no longer push the clamping seat 63 to move. When the adjusting hole 831 is aligned with the connecting hole 81, the air pressure in the driving airbag 652 is balanced with the elastic force of the adjusting spring 84. The gas in the first chamber 611 enters the expanding airbag 66 through the connecting hole 81. The expanding airbag 66 expands radially under the action of air pressure and gradually lifts the outer ring 8 of the bearing. The expanding airbag 66 is annular. After the outer peripheral wall of the expanding airbag 66 is tightly attached to the inner walls of both ends of the outer ring 8 of the bearing, it can ensure that the axis of the outer ring 8 of the bearing is coaxial with the axis of the clamping seat 63. Thus, the outer ring 8 of the bearing is aligned with the clamping port 51 and coaxial with the bearing expansion clamp 3, thereby realizing the axial positioning of the outer ring 8 of the bearing.

[0046] The outer wall of the inflatable airbag 66 has a receiving groove 661; when the outer ring 8 of the bearing is aligned, the drive airbag 652 enters the receiving groove 661, the adjusting spring 84 presses the adjusting rod 83 to reset, the first chamber 611 returns to normal, and can continue to push the piston in the first cylinder 61, so that the first cylinder 61 pushes the clamping seat 63 to move again.

[0047] Reference Figure 10 and Figure 11 The bearing expansion clamp 3 is provided with an abutment plate 31; a second compression ring 32 is slidably provided on the bearing expansion clamp 3; a compression spring 33 is sleeved on the bearing expansion clamp 3; the two ends of the compression spring 33 are respectively connected to the abutment plate 31 and the second compression ring 32.

[0048] A vent is provided on the inflatable airbag 66; a pressure relief valve 9 is provided inside the vent, the pressure relief valve 9 includes a vent housing 91, a vent rod 92, a sealing plate 93, and a vent spring 94; the vent housing 91 is disposed inside the vent; a vent hole 911 is provided on the vent housing 91; multiple sliding grooves are provided on the inner wall of the vent hole 911; sliders 921 are respectively provided on the periphery of the vent rod 92; multiple sliders 921 are slidably disposed in multiple sliding grooves; one end of the vent rod 92 extends out of the vent hole 911 and passes through the airbag 94. The limiting member 631 of the bearing expansion clamp 3 is near the bearing expansion clamp 3; the sealing plate 93 is set at the other end of the venting rod 92; the venting spring 94 is sleeved on the venting rod 92, one end of the venting spring 94 is connected to multiple sliders 921, and the other end is connected to the inner wall of the venting hole 911; in the initial state, the venting spring 94 pushes multiple sliders 921 to move towards the bearing expansion clamp 3, ensuring that the venting rod 92 protrudes out of the limiting member 631; and the sealing plate 93 closes the end of the venting hole 911 located in the expansion bladder 66.

[0049] After the bearing outer ring 8 is clamped, the first cylinder 61 continues to push the slide rail 62 to move towards the bearing expansion clamp 3. The clamping seat 63 carries the positioned bearing outer ring 8 through the equipment clamping port 51 until the end of the clamping seat 63 rigidly abuts against the end of the bearing expansion clamp 3. A baffle 622 is connected between the fixing plate 621 and the first extrusion ring 65. The baffle 622 can extend into the bottom of the feeding track 5 to prevent the bearing outer ring 8 above from moving down. At this time, the two ends of the bearing outer ring 8 in the axial direction are respectively attached to the first extrusion ring 65 and the second extrusion ring 32. Relying on the limiting support of the first extrusion ring 65 and the second extrusion ring 32, the bearing outer ring 8 is accurately positioned again in the axial direction. Simultaneously, the bearing expansion clamp 3 squeezes the vent rod 92, pushing it into the expansion bladder 66 and causing the sealing plate 93 to move away from the vent hole 911. Gas inside the expansion bladder 66 is then released through the vent hole 911, causing the expansion bladder 66 to contract. As the slide rail 62 continues to move slightly forward with the first cylinder 61, the clamping seat 63, blocked by the bearing expansion clamp 3, slides in the opposite direction relative to the slide rail 62, gradually retracting away from the bearing expansion clamp 3, causing the outer ring 8 of the bearing to slowly disengage from the support limit of the clamping seat 63. At the same time, the fixed first compression ring 65 forms an axial pushing limit, smoothly pushing the outer ring 8 of the bearing to the installation position of the bearing expansion clamp 3 until the outer ring 8 completely disengages from the clamping seat 63 and is fully fitted onto the outside of the bearing expansion clamp 3. Subsequently, the bearing expansion clamp 3 starts its expansion operation, and through its own radial expansion, it clamps the inner wall of the bearing outer ring 8, firmly fixing the bearing outer ring 8 to the machining station, completing the clamping and positioning of the expansion airbag 66; after clamping, the first cylinder 61 drives the slide rail 62 to retract away from the bearing expansion clamp 3, the clamping seat 63 loses its external abutment constraint, and under the elastic thrust of the return spring 64, it automatically slides and resets along the slide rail 62, returning to the initial limit position; the drilling machine 4 for deep machining of the cutting tool drills a hole in the bearing outer ring 8; a nozzle 11 is set on the base 1; the nozzle 11 is connected to a gear pump; the gear pump is located in the reservoir; the reservoir contains cutting fluid; the gear pump draws out the cutting fluid from the reservoir and sprays it from the nozzle 11 to the drilled hole in the bearing outer ring 8.

[0050] To prevent cutting fluid and metal chips from splashing onto the feeding track 5 during drilling, a splash-proof distance needs to be set between the feeding track 5 and the bearing expansion clamp 3; the splash-proof distance is adjusted according to the actual splashing situation of metal chips and cutting fluid.

[0051] After drilling is completed, the drilling machine 4 for deep machining of the cutting tool is reset; the first cylinder 61 pushes the slide rail 62 forward towards the bearing expansion clamp 3 again, so that the end of the clamping seat 63 abuts against the end face of the bearing expansion clamp 3 again. Then the bearing expansion clamp 3 contracts and releases the clamping fixation on the bearing outer ring 8. The compression spring 33 on the bearing expansion clamp 3 releases its elastic potential energy and axially pushes the second compression ring 32. The second compression ring 32 smoothly pushes the machined bearing outer ring 8 back onto the clamping seat 63. Since the expansion airbag 66 is in a contracted state, the bearing outer ring 8 falls onto the clamping seat 63. The second compression ring 32 presses the bearing outer ring 8 onto the driving airbag 652, so that the connecting hole 81 and the adjusting hole 831 are reconnected. The expansion airbag 66 is inflated. After the airbag expands, it fits tightly against the inner walls of both ends of the bearing outer ring 8, so as to achieve complete sealing of both ends of the bearing outer ring 8. At the same time, the driving airbag 652 presses the bearing outer ring 8 onto the driving airbag 652, so that the connecting hole 81 and the adjusting hole 831 are reconnected. The expansion airbag 66 is inflated. After the airbag expands, it fits tightly against the inner walls of both ends of the bearing outer ring 8, so as to achieve complete sealing of both ends of the bearing outer ring 8. The airbag 652 re-enters the receiving groove 661, and the connecting hole and the adjusting hole 831 are misaligned. An air outlet 633 is provided on the clamping seat 63, and an air passage 634 communicating with the air outlet 633 is provided inside the clamping seat 63. The air passage 634 is connected to the air outlet 633 of the air supply source. At the same time, the air supply source is connected to the air passage 634 inside the clamping seat 63 through a pipeline. High-pressure gas is sent from the air outlet 633 of the clamping seat 63 through the air passage 634 into the sealed cavity inside the outer ring 8 of the bearing. The air pressure in the sealed cavity gradually increases, and the high-pressure airflow can only rush out from the drilled hole in the outer ring 8 of the bearing. The high-speed airflow carries away the residual iron filings and impurities from the drilling and completes the flushing and cleaning of the drill hole. As the first cylinder 61 drives the slide rail 62 and the clamping seat 63 to pass through the clamping opening 51, the outer ring 8 of the bearing in the feeding track 5 loses the obstruction of the baffle 622 and then enters the bottom of the feeding track 5.

[0052] Reference Figure 1The material box 2 is equipped with a discharge plate 21 and a pressure plate 22. After the clamping unit 6 clamps the drilled bearing outer ring 8 and disengages from the bearing expansion clamp 3, the second cylinder 72 drives the slide 73 and the first cylinder 61 mounted on the slide 73 to move horizontally towards the material box 2, realizing the overall lateral displacement of the clamping unit 6, so that the clamping seat 63 and the clamped bearing outer ring 8 are aligned with the area above the material box 2 and the discharge plate 21. After the second cylinder 72 drives the slide 73 to the position, the first cylinder 61 extends again, pushing the slide rail 62, the clamping seat 63, and the bearing outer ring 8 supported and sealed by the expansion air bladder 66 on the clamping seat 63, together to continue moving from the position above the discharge plate 21 towards the inside of the material box 2. When the bearing outer ring 8 moves past the set position of the discharge plate 21 with the clamping seat 63, the pressure relief rod abuts against the pressure plate 22 and opens the vent hole 911. The expansion air bladder 66 contains... The compressed gas is quickly discharged, and the airbag itself deflates and contracts under the elasticity of the rubber. After the expansion airbag 66 contracts, its outer peripheral wall no longer provides tight support and locking limit to the inner walls at both ends of the bearing outer ring 8. The bearing outer ring 8 loses the radial support and axial locking constraint of the expansion airbag 66 and falls naturally under its own weight, landing smoothly on the bearing surface of the clamping seat 63. Then, the first cylinder 61 retracts and moves back, causing the slide rail 62, the clamping seat 63, and the bearing outer ring 8 that has landed on the clamping seat 63 to move in the opposite direction, gradually moving away from the material box 2. During the retraction process, the fixed unloading plate 21 and the bearing outer ring 8 that retracts with the clamping seat 63 generate relative movement. The unloading plate 21 then pushes the bearing outer ring 8 laterally away from the clamping seat 63, causing the bearing outer ring 8 to detach from the clamping seat 63 and fall directly into the material box 2 below by its own weight, completing the automatic unloading and storage of the finished bearing outer ring 8.

[0053] After the outer ring 8 of the bearing falls completely into the material box 2, the second cylinder 72 moves in the opposite direction, driving the slide 73, the first cylinder 61 and the clamping unit 6 to reset to the initial working position, waiting for the next round of bearing outer ring 8 clamping, drilling and unloading cycle operation.

[0054] The working principle of the bearing outer ring 8 drilling and machining device in this application is as follows: The outer rings 8 of the bearings to be processed are neatly stacked in the inclined feeding track 5. They roll freely down the slope of the feeding track 5 by their own weight and are transported one by one to the clamping port 51 at the bottom of the feeding track 5. Under normal conditions, the outer rings 8 of the bearings are lower than the clamping port 51 and are blocked by the side wall of the feeding track 5 to prevent them from falling, waiting for the clamping unit 6 to pick them up.

[0055] The second cylinder 72 of the displacement unit 7 can drive the slide block 73 to slide laterally along the displacement guide rail 71. The first cylinder 61 extends after being positioned synchronously with the slide block 73, pushing the slide rail 62 and the clamping seat 63 forward, sending the contracted inflated airbag 66 into the inner ring cavity of the outer ring 8 of the bearing. During the forward movement, the driving airbag 652 on the first compression ring 65 contacts and is compressed with the outer ring 8 of the bearing. The internal gas triggers the adjusting rod 83 to slide against the elastic force of the adjusting spring 84, so that the adjusting hole 831 is connected to the connecting hole 81, and the first cavity Air pressure in chamber 611 is introduced into expansion airbag 66 through pipeline. Expansion airbag 66 expands radially to fit the inner walls of both ends of the outer ring 8 of the bearing, automatically correcting the posture of the outer ring 8 of the bearing to ensure that it is coaxial with the clamping seat 63 and the bearing expansion clamp 3, and completing precise axial and radial alignment. After the outer ring 8 of the bearing is aligned, drive airbag 652 is driven into the receiving groove 661 on the outer wall of expansion airbag 66. Adjusting rod 83 is reset and cut off the air passage under the action of adjusting spring 84. First cylinder 61 resumes thrust and continues to push clamping seat 63 forward.

[0056] The first cylinder 61 continuously pushes the clamping seat 63, carrying the aligned bearing outer ring 8 through the clamping opening 51, until the end of the clamping seat 63 abuts against the bearing expansion clamp 3. At this time, the baffle 622 extends into the bottom of the feeding track 5, blocking the upper bearing outer ring 8 from moving downward and preventing feeding errors. The axial ends of the bearing outer ring 8 are limited and supported by the first extrusion ring 65 and the second extrusion ring 32 on the bearing expansion clamp 3, achieving secondary axial precise positioning. At the same time, the bearing expansion clamp 3 extrudes the vent rod 92, opens the sealing plate 93 of the pressure relief valve 9, and the gas in the expansion bladder 66 is discharged and contracted from the vent hole 911. The clamping seat 63 is blocked by the clamp and slides back in the opposite direction to the slide rail 62. With the fixed first extrusion ring 65 pushing axially, the bearing outer ring 8 is smoothly pushed and fitted onto the outside of the bearing expansion clamp 3.

[0057] The bearing expansion clamp 3 initiates radial expansion, gripping the inner wall of the bearing outer ring 8 to achieve rigid fixation; then the drilling machine moves down to perform drilling operations on the fixed bearing outer ring 8; during the operation, the gear pump draws cutting fluid from the storage tank and sprays it precisely onto the drilling position through the nozzle 11 to achieve cooling and lubrication; a splash-proof distance is reserved between the loading track 5 and the clamp to avoid cutting fluid and metal chips splashing and contaminating the loading track 5.

[0058] After drilling is completed, the drilling machine resets, and the first cylinder 61 pushes the clamping seat 63 to abut the end face of the bearing expansion clamp 3 again; the clamp retracts to release the grip on the outer ring 8 of the bearing, and the compression spring 33 pushes the second compression ring 32 to push the machined outer ring 8 of the bearing back to the clamping seat 63; the compression drive airbag 652 of the outer ring 8 of the bearing opens the air passage again, and the expansion airbag 66 re-inflates and seals the two ports on both sides of the outer ring 8 of the bearing; the air supply source introduces high-pressure gas into the sealed cavity of the outer ring 8 of the bearing through the air passage 634 and the air outlet 633 of the clamping seat 63, and the airflow only rushes out from the drilled hole, carrying away the residual iron filings and impurities in the hole and discharging them simultaneously, completing the automatic cleaning of the drilled hole.

[0059] After the hole cleaning is completed, the second cylinder 72 drives the slide 73 to move the first cylinder 61, the clamping unit 6, and the processed bearing outer ring 8 laterally to the top of the material box 2; the first cylinder 61 extends again to push the clamping seat 63 into the material box 2. During the movement, the venting rod 92 abuts against the pressure plate 22 of the material box 2, and the pressure relief valve 9 is opened again to make the expansion air bag 66 quickly deflate and contract, losing its support and clamping position for the bearing outer ring 8; the bearing outer ring 8 falls on the bearing surface of the clamping seat 63, the first cylinder 61 retracts and moves back, and the fixed unloading plate 21 is laterally pushed away from the bearing outer ring 8. The workpiece falls into the material box 2 by its own weight to complete the storage; finally, the second cylinder 72 drives the components in the opposite direction to reset the whole assembly to the initial position, waiting for the next round of loading, clamping, drilling, and unloading cycle.

[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 drilling and machining apparatus for bearing outer rings, characterized in that: The device includes a base (1) and a hopper (2); a bearing expansion clamp (3) is provided on the base (1); a drilling machine (4) for deep machining of cutting blades is provided on the base (1); a CNC cutting blade is provided on the drilling machine (4); the drilling machine (4) for deep machining of cutting blades is located directly above the bearing expansion clamp (3); a feeding track (5) is inclinedly provided on the base (1); the bottom of the feeding track (5) has a clamping opening (51); a clamping unit (6) is slidably provided on the base (1) along the axial direction of the bearing expansion clamp (3); the clamping unit (6) is used to clamp the bearing outer ring (8) at the bottom of the feeding track (5); the clamping unit (6) passes through the clamping opening (51); the clamping unit (6) is connected to a displacement unit (7).

2. The bearing outer ring drilling apparatus according to claim 1, characterized in that: The clamping unit (6) includes a first cylinder (61), a slide rail (62), a clamping seat (63), a return spring (64), a first compression ring (65), and two expansion airbags (66); the first cylinder (61) is mounted on the displacement unit (7); the slide rail (62) is connected to the power output end of the first cylinder (61); the slide rail (62) is coaxial with the bearing expansion clamp (3); the clamping seat (63) is slidably mounted on the slide rail (62); the return spring (64) The slide rail (62) is fitted on the slide rail (62); a fixing plate (621) is connected to the slide rail (62); the two ends of the return spring (64) are respectively connected to the clamping seat (63) and the fixing plate (621); the first compression ring (65) is fitted on the clamping seat (63) and connected to the fixing plate (621); the two expansion airbags (66) are respectively disposed on the clamping seat (63); the peripheral sidewalls of the two expansion airbags (66) abut against the inner walls of the two ends of the bearing outer ring (8).

3. The bearing outer ring drilling apparatus according to claim 2, characterized in that: The clamping seat (63) is provided with two limiting members (631); the limiting member (631) is provided with an annular groove (6311); the inflatable airbag (66) is located in the annular groove (6311).

4. The bearing outer ring drilling apparatus according to claim 2, characterized in that: The bearing expansion clamp (3) is provided with an abutment plate (31); a second compression ring (32) is slidably provided on the bearing expansion clamp (3); a compression spring (33) is sleeved on the bearing expansion clamp (3); the two ends of the compression spring (33) are respectively connected to the abutment plate (31) and the second compression ring (32).

5. The bearing outer ring drilling apparatus according to claim 2, characterized in that: A baffle (622) is connected between the fixing plate (621) and the first compression ring (65).

6. The bearing outer ring drilling apparatus according to claim 3, characterized in that: The inflatable airbag (66) is provided with a vent; a pressure relief valve (9) is provided inside the vent, the pressure relief valve (9) includes a vent housing (91), a vent rod (92), a sealing plate (93), and a vent spring (94); the vent housing (91) is disposed inside the vent; a vent hole (911) is provided on the vent housing (91); multiple sliding grooves are provided on the inner wall of the vent hole (911); sliders (921) are respectively provided on the periphery of the vent rod (92); multiple The sliders (921) are slidably disposed in the plurality of grooves; one end of the venting rod (92) extends out of the venting hole (911) and passes through the limiting member (631) near the bearing expansion clamp (3); the sealing plate (93) is disposed at the other end of the venting rod (92); the venting spring (94) is sleeved on the venting rod (92), one end of the venting spring (94) is connected to the plurality of sliders (921), and the other end is connected to the inner wall of the venting hole (911).

7. The bearing outer ring drilling apparatus according to claim 2, characterized in that: The displacement unit (7) includes a displacement guide rail (71), a second cylinder (72), and a slide (73); the slide (73) is slidably disposed on the displacement guide rail (71); the first cylinder (61) is disposed on the slide (73); the second cylinder (72) is disposed on the displacement guide rail (71); the power output end of the second cylinder (72) is connected to the slide (73).

8. The bearing outer ring drilling apparatus according to claim 2, characterized in that: The clamping seat (63) is provided with a limiting plate (632); the fixing plate (621) is provided with a stop plate (6211); the limiting plate (632) abuts against the stop plate (6211).

9. The bearing outer ring drilling apparatus according to claim 1, characterized in that: The material box (2) is equipped with a discharge plate (21).

10. A bearing outer ring drilling apparatus according to claim 1, characterized in that: The base (1) is provided with a nozzle (11); the nozzle (11) is connected to a gear pump; the gear pump is located in the liquid storage tank; the liquid storage tank contains cutting fluid.

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