A drilling device for a bearing inner ring

Abstract

The application relates to a bearing inner ring drilling device, which comprises a frame, a rotating disc arranged on the frame and a driving assembly for driving the rotating disc to rotate, a plurality of clamps for locking the bearing inner ring are arranged on the rotating disc, a feeding structure for conveying the bearing inner ring to the clamps and a discharging structure for taking the bearing inner ring away from the clamps are arranged on the frame, the feeding structure comprises a feeding track for conveying the bearing inner ring one by one and a feeding clamping assembly, the discharging structure comprises a discharging track for conveying the bearing inner ring one by one and a discharging clamping assembly, a drilling assembly for drilling the bearing inner ring and a tapping assembly for tapping the bearing inner ring are arranged on the frame, and the feeding structure, the drilling assembly, the tapping assembly and the discharging structure are arranged in a circle along the peripheral wall of the rotating disc. The application improves the automation degree of the drilling device to save manpower and time and improves the processing efficiency of the bearing inner ring.

Description

Technical Field

[0001] This application relates to the field of drilling apparatus, and more particularly to a drilling apparatus for the inner ring of a bearing. Background Technology

[0002] Reference Figure 1 When manufacturing the inner ring of a bearing, two holes need to be made on the circumferential wall of the inner ring.

[0003] Currently, after drilling, the inner ring of the bearing needs to be tapped. Then, a tapping machine is used to tap the drilled hole. Therefore, different equipment is needed to process it step by step in different processes.

[0004] Chinese utility model application CN201821678004.5 discloses a device for drilling double-set screw holes in the inner ring of a bearing, including a swing-table cylinder. A fixture seat is mounted on the turntable of the swing-table cylinder, and internal expansion fixture heads are respectively mounted at the front and rear ends of the fixture seat. The rear side of the swing-table cylinder is a drilling station, and the front side is a tapping station. The rotation of the swing-table cylinder drives the two internal expansion fixture heads to reciprocate between the drilling station and the tapping station. Drilling devices are respectively mounted on both sides of the drilling station, and tapping devices are respectively mounted on both sides of the tapping station. With two stations, drilling and tapping operations on the inner ring can be performed simultaneously.

[0005] Regarding the aforementioned technologies, the inventors discovered that the inner ring needs to be manually installed on the internal expansion fixture at the drilling station. When drilling and tapping the inner rings of a batch of bearings, the bearing inner rings need to be repeatedly positioned manually, resulting in a long processing cycle and high labor costs. Summary of the Invention

[0006] In order to improve the automation level of the device to save manpower and time, and to improve the processing efficiency of bearing inner rings, this application provides a drilling device for bearing inner rings.

[0007] This application provides a drilling device for the inner ring of a bearing, which adopts the following technical solution:

[0008] A drilling device for bearing inner rings includes a frame, a turntable rotatably mounted on the frame, and a drive assembly for driving the turntable to rotate. The turntable is provided with multiple clamps for locking the bearing inner rings. The frame is provided with a loading structure for transporting the bearing inner rings to the clamps and a unloading structure for removing the bearing inner rings from the clamps. The loading structure includes a loading track for transporting bearing inner rings one by one and a loading clamping assembly. The unloading structure includes a unloading track for transporting bearing inner rings one by one and an unloading clamping assembly. The frame is provided with a drilling assembly for drilling holes in the bearing inner rings and a tapping assembly for tapping the bearing inner rings. The loading structure, drilling assembly, tapping assembly, and unloading structure are arranged circumferentially along the circumferential wall of the turntable.

[0009] By adopting the above technical solution, the user places the bearing inner ring on the loading track, then uses the loading clamping assembly to place the bearing inner ring in the fixture for fixation, then opens the drive assembly to drive the turntable to the drilling position, and uses the drilling assembly to drill the circumferential wall of the bearing inner ring. After drilling, the turntable is rotated to the tapping position and the tapping assembly is used to tap the hole on the bearing inner ring. Finally, the unloading clamping assembly transports the bearing inner ring to the unloading track, and the conveyor belt in the unloading track transports the bearing inner ring to the next process, thereby automatically completing the drilling and tapping of the bearing inner ring, improving the automation level of the drilling device to save manpower and time, and improving the processing efficiency of the bearing inner ring.

[0010] Preferably, the loading and clamping assembly includes a first moving module, a first slide table, and a loading and clamping component. The first moving module is used to drive the first slide table to move vertically and to drive the first slide table to move radially along the turntable. The loading and clamping component includes a first mounting block connected to the first slide table, a first clamping rod, a first clamping plate connected to the first clamping rod, and a second clamping plate. One end of the first clamping rod is connected to the first mounting block, and the other end of the first clamping rod is connected to the top of the first clamping plate. The first clamping plate is connected to the second clamping plate through a telescopic component. The bottom of the second clamping plate is connected to a clamping component for clamping the inner ring of the bearing. The clamp includes a placement seat for placing the inner ring of the bearing and a driving component for disengaging the inner ring of the bearing from the clamping component. The placement seat has a placement groove, and the inner ring of the bearing is slidably connected to the placement groove in a vertical direction.

[0011] By adopting the above technical solution, when the inner ring of the bearing moves to the end of the feeding track, the user activates the first moving module to lower the second clamping plate. At this time, the clamping component clamps the inner ring of the bearing. Then, the first moving module raises the second clamping plate, and the second clamping plate moves radially along the turntable. When the second clamping plate is above the placement seat, the second clamping plate is lowered. At this time, the driving component causes the inner ring of the bearing to disengage from the clamping component and lock in the placement seat, thereby improving the automation level of the device and thus improving drilling efficiency.

[0012] Preferably, the clamping component includes a first support rod, two first clamping blocks, and two first springs. One end of the first support rod is connected to the center of the bottom of the second clamping plate. The two first clamping blocks are located on both sides of the first support rod. A first sliding groove is provided at the bottom of the second clamping plate. A first slider is connected to the top of the two first clamping blocks. The first slider is slidably connected to the first sliding groove and slides radially along the turntable. One end of the first spring is connected to the side of the first clamping block near the first support rod, and the other end of the first spring is connected to the first support rod. A first guide slope is provided at the bottom of the first clamping block. When the first clamping block descends, the first guide slope abuts against the inner wall of the inner ring of the bearing to bring the two first clamping blocks closer to each other.

[0013] By adopting the above technical solution, when the inner ring of the bearing moves to the end of the feeding track, the user opens the moving module to lower the second clamping plate. The guide slope abuts against the inner wall of the inner ring of the bearing so that the two first clamping blocks move closer to each other and enter the inner ring of the bearing. Then, the extension force of the spring moves the two first clamping blocks away from each other to achieve the clamping of the inner ring of the bearing.

[0014] Preferably, the telescopic component includes a telescopic rod and a second spring. A sliding hole is provided on the first clamping plate, through which the telescopic rod slides. The second spring is located between the first and second clamping plates and is sleeved on the telescopic rod. The driving component includes a driving frame, a movable rod, a third spring, a push plate, and two moving blocks. The driving frame is connected to the bottom wall of the placement groove. Moving blocks are slidably connected to both ends of the driving frame, and the sliding direction is radially moving along the placement groove. The side of the two sets of moving blocks that are close to each other is an inclined surface. A push plate is slidably connected between the inclined surfaces of the two sets of moving blocks. A movable rod is connected to the top of the push plate. One end of the movable rod passes through the driving frame and extends to the outside of the driving frame, and a pressing block is connected to this end. The third spring is sleeved on the end of the movable rod located outside the driving frame. A connecting rod is connected to the side of the moving block away from the push plate. A fifth spring is sleeved on the connecting rod. The end of the connecting rod away from the moving block passes through the driving frame and is connected to an inner expansion block. When the second clamping plate descends, the first support rod abuts against the pressing block.

[0015] By adopting the above technical solution, when the second clamping plate is above the placement seat, the second clamping plate is lowered. At this time, the first support rod abuts against the pressing block, thereby driving the movable rod to descend so that the inner expansion block abuts against the inner wall of the bearing inner ring. At this time, the second clamping plate continues to descend, the telescopic rod moves, and the second spring contracts, thereby causing the first clamping block to disengage from the bearing inner ring, realizing the feeding of the bearing inner ring, thereby improving the automation level of the device and thus improving work efficiency.

[0016] Preferably, the unloading clamping assembly includes a second moving module, a second slide table, and an unloading clamping component. The unloading clamping component includes a second mounting block connected to the second slide table, a second clamping rod, a third clamping plate connected to the second clamping rod, a second support rod, two second clamping blocks, and two fourth springs. One end of the second clamping rod is connected to the second mounting block, and the other end of the second clamping rod is connected to the top of the second clamping plate. One end of the second support rod is connected to the center of the bottom of the third clamping plate. The two second clamping blocks are located on both sides of the second support rod. A second sliding groove is provided at the bottom of the third clamping plate. A second slider is connected to the top of the two second clamping blocks. The second slider is slidably connected to the second sliding groove and slides radially along the turntable. One end of the fourth spring is connected to the side of the second clamping block near the second support rod, and the other end of the fourth spring is connected to the second support rod. A second guide slope is provided at the bottom of the second clamping block. When the second clamping block descends, the second guide slope abuts against the outer wall of the inner ring of the bearing to make the two second clamping blocks move away from each other.

[0017] By adopting the above technical solution, after the inner ring of the bearing is drilled and tapped, the turntable moves the inner ring of the bearing to the unloading position. At this time, the third clamping plate is driven to descend by the second moving module, so that when the second clamping block descends, the second guide slope abuts against the outer wall of the inner ring of the bearing, so that the two second clamping blocks move away from each other and clamp the inner ring of the bearing.

[0018] Preferably, the end of the feeding track near the turntable is provided with an opening block, and the top of the opening block is provided with an opening guide slope. When the second gripping block descends, the second guide slope abuts against the opening guide slope so that the two second gripping blocks move away from each other.

[0019] By adopting the above technical solution, when the second clamping block descends, the second guide slope abuts against the opening guide slope to make the two second clamping blocks move away from each other, thereby releasing the bearing inner ring from the two second clamping blocks, and then transporting the bearing inner ring to the next process by the conveyor belt in the unloading track.

[0020] Preferably, the system further includes a cooling assembly comprising multiple nozzles, multiple water tanks, a recovery tank, and a circulation pump. Each water tank is connected to an inlet pipe, the other end of which is connected to a drilling fluid source. One end of each nozzle is connected to a water tank, and the other end is located above a clamp near the drilling or tapping assembly. The recovery tank is located below the turntable. The inlet of the circulation pump is connected to the recovery tank, and a filter screen for filtering metal debris is provided at the opening connecting the circulation pump and the recovery tank. The outlet of the circulation pump is connected to multiple water tanks. Each water tank contains a pressing assembly, which applies pressure to the drilling fluid within the water tank to cause the drilling fluid to be ejected from the nozzle.

[0021] By adopting the above technical solution, when drilling or tapping the inner ring of a bearing, the drilling fluid is sprayed out from the nozzle by the extrusion component, thereby spraying the drilling fluid onto the inner ring of the bearing being drilled or tapped, so as to avoid damage to the drilling and tapping components. Excess drilling fluid will fall into the recycling tank, where it will be recycled and reused by the circulation pump, thus saving resources.

[0022] Preferably, the drilling assembly includes two drilling bases, two drilling hydraulic cylinders, and two drilling parts; the tapping assembly includes a tapping base, a tapping hydraulic cylinder, and a tapping part. Both drilling bases are connected to the frame, and the two drilling hydraulic cylinders are respectively connected to the two drilling bases. The piston rods of the two drilling hydraulic cylinders are respectively connected to the two drilling parts through connecting parts. Both tapping bases are connected to the frame, and the two tapping hydraulic cylinders are respectively connected to the two tapping bases. The piston rods of the two tapping hydraulic cylinders are respectively connected to the two tapping parts through connecting parts.

[0023] By adopting the above technical solution, when drilling or tapping is required, the user only needs to open the drilling hydraulic cylinder or tapping hydraulic cylinder to drive the drilling or tapping parts to drill or tap the inner ring of the bearing. The structure is simple and the procurement is convenient.

[0024] Preferably, the extrusion assembly includes a push rod, an extrusion rod, an extrusion plate, and a sixth spring. The connecting member includes a connecting seat, which is connected to a drilling or tapping component and a drilling or tapping hydraulic cylinder. The push rod is connected to the connecting seat. One end of the extrusion rod passes through the top of the water tank and enters the interior of the water tank, connecting to the extrusion plate. The extrusion plate is slidably and sealed within the water tank, and the sliding direction is vertical. The sixth spring is sleeved on the end of the extrusion rod located outside the water tank. A guide bar is connected to the top of the extrusion rod. The connecting seat is connected to the push rod. When the drilling or tapping hydraulic cylinder operates, the push rod abuts against the guide slope of the guide bar to make the extrusion rod move vertically downward.

[0025] By adopting the above technical solution, when drilling or tapping is required, the user only needs to open the drilling hydraulic cylinder or the tapping hydraulic cylinder to drive the drilling or tapping parts to drill or tap the inner ring of the bearing. At this time, the push rod and the guide inclined surface of the guide inclined rod abut against each other so that the extrusion rod moves vertically downward, thereby driving the extrusion plate to extrude the drilling fluid in the water tank, thereby improving the linkage and reducing the cost of the water pump.

[0026] Preferably, the drive assembly includes a motor, a driving bevel gear, a first driven bevel gear, and a second driven bevel gear. The first driven bevel gear and the second driven bevel gear are both meshed with the driving bevel gear. The output shaft of the motor is circumferentially fixed to the driving bevel gear. A stirring rod is provided inside the recycling bin. The stirring rod is circumferentially fixed to the second driven bevel gear. The first driven bevel gear is circumferentially fixed to the turntable.

[0027] By adopting the above technical solution, when the motor drives the turntable to rotate, it also drives the stirring rod to rotate, thereby preventing metal debris in the recycling tank from accumulating at the filter screen and affecting the operation of the circulation pump.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. The user places the bearing inner ring on the loading track, and then uses the loading clamping assembly to place the bearing inner ring in the fixture for fixation. Then, the drive assembly is turned on to rotate the turntable to the drilling position. The drilling assembly drills holes in the circumference of the bearing inner ring. After drilling, the turntable is rotated to the tapping position and the tapping assembly is used to tap the holes on the bearing inner ring. Finally, the unloading clamping assembly transports the bearing inner ring to the unloading track. The conveyor belt in the unloading track transports the bearing inner ring to the next process, thereby automatically completing the drilling and tapping of the bearing inner ring, improving the automation level of the drilling device to save manpower and time, and improving the processing efficiency of the bearing inner ring.

[0030] 2. When the second clamping plate is above the placement seat, the second clamping plate is lowered. At this time, the first support rod abuts against the pressing block, thereby driving the movable rod to descend so that the inner expansion block abuts against the inner wall of the bearing inner ring. At this time, the second clamping plate continues to descend, the telescopic rod moves, the second spring contracts, thereby causing the first clamping block to disengage from the bearing inner ring, realizing the feeding of the bearing inner ring, thereby improving the automation level of the device and thus improving work efficiency.

[0031] 3. When drilling or tapping is required, the user only needs to open the drilling hydraulic cylinder or tapping hydraulic cylinder to drive the drilling or tapping parts to drill or tap the inner ring of the bearing. At this time, the push rod and the guide inclined surface of the guide inclined rod abut against each other so that the extrusion rod moves vertically downward, thereby driving the extrusion plate to extrude the drilling fluid in the water tank, thereby improving the linkage and reducing the cost of the water pump. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the bearing inner ring.

[0033] Figure 2 This is a schematic diagram of the overall structure of the drilling device according to an embodiment of this application.

[0034] Figure 3 This is a cross-sectional schematic diagram of the drilling apparatus according to an embodiment of this application.

[0035] Figure 4 yes Figure 3 The enlarged schematic diagram at point A in the middle mainly shows the cross-sectional schematic diagram of the feeding and clamping component.

[0036] Figure 5 yes Figure 3The enlarged schematic diagram at point B mainly shows the cross-sectional view of the fixture.

[0037] Figure 6 This is a cross-sectional schematic diagram of the unloading fixture and unloading track according to an embodiment of this application.

[0038] Figure 7 This is a cross-sectional schematic diagram of the water tank according to an embodiment of this application.

[0039] Explanation of reference numerals in the attached drawings: 1. Inner ring of bearing; 100. Frame; 200. Turntable; 210. Placement seat; 221. Drive frame; 222. Movable rod; 223. Third spring; 224. Push plate; 225. Moving block; 226. Inner expansion block; 227. Pressing block; 228. Fifth spring; 229. Connecting rod; 310. Feeding track; 320. First moving module; 330. First slide; 340. First mounting block; 350. First clamping rod; 360. First clamping plate; 370. Second clamping plate; 371. Telescopic rod; 372. Second spring; 381. First support rod; 382. First clamping block; 383. First spring; 410. Second moving module; 420. Second slide; 431. Second mounting block; 4 32. Second clamping rod; 433. Third clamping plate; 444. Second support rod; 445. Second clamping block; 446. Fourth spring; 450. Feeding track; 451. Opening block; 510. Spray pipe; 520. Water tank; 521. Water inlet pipe; 530. Recycling bucket; 531. Stirring rod; 540. Circulating pump; 551. Push rod; 552. Extrusion rod; 553. Extrusion plate; 556. Sixth spring; 557. Guide slant rod; 600. Connecting seat; 710. Drilling base; 720. Drilling hydraulic cylinder; 730. Drilling component; 810. Tapping base; 820. Tapping hydraulic cylinder; 830. Tapping component; 910. Motor; 920. Driving bevel gear; 930. First driven bevel gear; 940. Second driven bevel gear. Detailed Implementation

[0040] The present application will be further described in detail below with reference to all the accompanying drawings.

[0041] This application discloses a drilling device for the inner ring of a bearing. (Refer to...) Figure 1 , Figure 2 , Figure 2A drilling device for bearing inner rings includes a frame 100, a turntable 200 rotatably mounted on the frame 100, and a drive assembly for driving the turntable 200 to rotate. The turntable 200 is provided with four clamps for locking the bearing inner ring 1, the four clamps being evenly arranged circumferentially along the turntable 200. The frame 100 is provided with a loading structure for transporting the bearing inner ring 1 to the clamps and a unloading structure for removing the bearing inner ring 1 from the clamps. The loading structure includes transporting the bearing inner rings one by one. The feeding track 310 and feeding clamping assembly of 1, the unloading structure includes the unloading track 450 for transporting the bearing inner ring 1 one by one and the unloading clamping assembly, the frame 100 is provided with a drilling assembly for drilling holes in the bearing inner ring 1 and a tapping assembly for tapping the bearing inner ring 1, the feeding structure, drilling assembly, tapping assembly and unloading structure are arranged in a circle along the circumference of the turntable 200, wherein the feeding track 310 and the unloading track 450 are both provided with conveyor belts for transporting the bearing inner ring 1.

[0042] Reference Figure 3 , Figure 4 The loading and clamping assembly includes a first moving module 320, a first slide table 330, and loading and clamping components. The first moving module 320 is used to drive the first slide table 330 to move vertically and radially along the turntable 200. The first moving module 320 adopts an XY-axis moving platform. The loading and clamping components include a first mounting block 340 connected to the first slide table 330, a first clamping rod 350, a first clamping plate 360 ​​connected to the first clamping rod 350, and a second clamping plate 370. One end of the first clamping rod 350 is connected to the first mounting block 340, and the other end of the first clamping rod 350 is connected to the top of the first clamping plate 360. The first clamping plate 360 ​​is connected to the second clamping plate 370 through a telescopic member. The bottom of the second clamping plate 370 is connected to a clamping member for clamping the bearing inner ring 1. The fixture includes a placement seat 210 for placing the bearing inner ring 1 and a driving member for disengaging the bearing inner ring 1 from the clamping member. The placement seat 210 has a placement groove with a circular cross-section. The bearing inner ring 1 is slidably connected to the placement groove and the sliding direction is vertical.

[0043] The clamping component includes a first support rod 381, two first clamping blocks 382, ​​and two first springs 383. One end of the first support rod 381 is welded to the center of the bottom of the second clamping plate 370. The two first clamping blocks 382 are located on both sides of the first support rod 381. The bottom of the second clamping plate 370 is provided with a first sliding groove with a vertical cross-section in the shape of a T. The top of the two first clamping blocks 382 is connected to a first slider with a vertical cross-section in the shape of a T to prevent the first slider from disengaging from the first sliding groove. The first slider is slidably connected to the first sliding groove and slides radially along the turntable 200. One end of the first spring 383 is bonded to the side of the first clamping block 382 near the first support rod 381, and the other end of the first spring 383 is bonded to the first support rod 381. The bottom of the first clamping block 382 is provided with a first guide slope. When the first clamping block 382 descends, the first guide slope abuts against the inner wall of the inner ring 1 of the bearing to bring the two first clamping blocks 382 closer to each other.

[0044] Reference Figure 4 , Figure 5 The telescopic component includes two telescopic rods 371 and two second springs 372. Two sliding holes are provided on the first clamping plate 360, through which the telescopic rods 371 slide. The second springs 372 are located between the first clamping plate 360 ​​and the second clamping plate 370, and are sleeved on the telescopic rods 371. A limiting block is connected to the top of the telescopic rods 371; the diameter of the limiting block is larger than the diameter of the sliding holes to prevent the telescopic rods 371 from disengaging from the sliding holes. The driving component includes a driving frame 221, a movable rod 222, a third spring 223, a push plate 224, and two moving blocks 225. The driving frame 221 is connected to the bottom wall of the placement groove. Moving blocks 225 are slidably connected to both ends of the driving frame 221, and the sliding direction is radial along the placement groove. The sides of the two sets of moving blocks 225 that are close to each other are inclined surfaces. A push plate 224 is slidably connected between the inclined surfaces of the two sets of moving blocks 225. A movable rod 222 is connected to the top of the push plate 224. One end of the movable rod 222 passes through the drive frame 221 and extends to the outside of the drive frame 221. A pressing block 227 is connected to this end. A third spring 223 is sleeved on the end of the movable rod 222 located outside the drive frame 221. A connecting rod 229 is connected to the side of the moving block 225 away from the push plate 224. A fifth spring 228 is sleeved on the connecting rod 229. An inner expansion block 226 is connected to the end of the connecting rod 229 away from the moving block 225 that passes through the drive frame 221. When the second clamping plate 370 descends, the first support rod 381 abuts against the pressing block 227.

[0045] Reference Figure 2 , Figure 6The unloading clamping assembly includes a second moving module 410, a second slide table 420, and unloading clamping components. The second moving module 410 adopts an XY-axis moving platform. The unloading clamping components include a second mounting block 431 connected to the second slide table 420, a second clamping rod 432, a third clamping plate 433 connected to the second clamping rod 432, a second support rod 444, two second clamping blocks 445, and two fourth springs 446. One end of the second clamping rod 432 is connected to the second mounting block 431, and the other end of the second clamping rod 432 is connected to the top of the second clamping plate 470. One end of the second support rod 444 is connected to the center of the bottom of the third clamping plate 433. The two second clamping blocks... 445 are located on both sides of the second support rod 444. The bottom of the third clamping plate 433 is provided with a second sliding groove. The top of the two second clamping blocks 445 are connected to the second sliders. The vertical cross-sections of the second sliders and the second sliding grooves are both T-shaped. The second sliders are slidably connected to the second sliding grooves and slide radially along the turntable 200. One end of the fourth spring 446 is connected to the side of the second clamping block 445 near the second support rod 444, and the other end of the fourth spring 446 is connected to the second support rod 444. The bottom of the second clamping block 445 is provided with a second guide slope. When the second clamping block 445 descends, the second guide slope abuts against the outer wall of the inner ring 1 of the bearing so that the two second clamping blocks 445 move away from each other.

[0046] An opening block 451 is provided at the end of the feeding track 450 near the turntable 200. An opening guide slope is provided at the top of the opening block 451. When the second gripping block 445 descends, the second guide slope abuts against the opening guide slope so that the two second gripping blocks 445 move away from each other.

[0047] Reference Figure 3 , Figure 7 It also includes a cooling assembly, which comprises four nozzles 510, four water tanks 520, a recovery tank 530, and a circulation pump 540. The water tanks 520 are connected to inlet pipes 521, the other end of which is connected to a drilling fluid source, which can be a tank filled with drilling fluid. One end of each nozzle 510 is connected to a water tank 520, and the other end is located above the mounting base 210 near the drilling or tapping assembly. The recovery tank 530 is located below the turntable 200. The 0 has a recovery hole for the drilling fluid to fall. The inlet of the circulation pump 540 is connected to the recovery tank 530, and the opening connecting the circulation pump 540 and the recovery tank 530 is equipped with a filter screen for filtering metal debris. The metal debris is formed by drilling and tapping. The outlet of the circulation pump 540 is connected to the bottom of four water tanks 520 through four recovery branch pipes. The water tank 520 is equipped with a squeezing assembly, which is used to generate pressure on the drilling fluid in the water tank 520 so that the drilling fluid is sprayed out from the nozzle 510.

[0048] The drilling assembly includes two drilling bases 710, two drilling hydraulic cylinders 720, and two drilling parts 730. The tapping assembly includes a tapping base 810, a tapping hydraulic cylinder 820, and a tapping part 830. The drilling part 730 uses a common electric drill, and the tapping part 830 uses a common tapping machine. Both drilling bases 710 are connected to the frame 100, and the two drilling hydraulic cylinders 720 are respectively connected to the two drilling bases 710. The piston rods of the two drilling hydraulic cylinders 720 are respectively connected to the two drilling parts 730 through connecting parts. Both tapping bases 810 are connected to the frame 100, and the two tapping hydraulic cylinders 820 are respectively connected to the two tapping bases 810. The piston rods of the two tapping hydraulic cylinders 820 are respectively connected to the two tapping parts 830 through connecting parts.

[0049] The extrusion assembly includes a push rod 551, an extrusion rod 552, an extrusion plate 553, and a sixth spring 556. The connecting component includes a connecting seat 600, which is connected to the drilling component 730 or the tapping component 830, and also to the drilling hydraulic cylinder 720 or the tapping hydraulic cylinder 820. The connecting seat 600 is slidably connected to the top of the drilling base 710 or the tapping base 810 in a horizontal direction. The push rod 551 is connected to the connecting seat 600, and one end of the extrusion rod 552 passes through the top of the water tank 520. The part enters the water tank 520 and connects to the extrusion plate 553. The extrusion plate 553 is slidably connected to the water tank 520 and the sliding direction is vertical. The sixth spring 556 is sleeved on the end of the extrusion rod 552 located outside the water tank 520. The top of the extrusion rod 552 is connected to the guide inclined rod 557. The connecting seat 600 is connected to the push rod 551. When the drilling hydraulic cylinder 720 or the tapping hydraulic cylinder 820 is operating, the push rod 551 abuts against the guide inclined surface of the guide inclined rod 557 to make the extrusion rod 552 move vertically downward.

[0050] The drive assembly includes a motor 910, a driving bevel gear 920, a first driven bevel gear 930, and a second driven bevel gear 940. A motor 910 bracket is connected to the inner wall of the recycling bin 530. The motor 910 and the motor 910 bracket are connected by bolts. The driving bevel gear 920, the first driven bevel gear 930, and the second driven bevel gear 940 are all rotatably connected to the motor 910 bracket. The first driven bevel gear 930 and the second driven bevel gear 940 are both meshed with the driving bevel gear 920. The output shaft of the motor 910 is circumferentially fixed to the driving bevel gear 920. A stirring rod 531 is provided inside the recycling bin 530. The stirring rod 531 is circumferentially fixed to the second driven bevel gear 940. The first driven bevel gear 930 is circumferentially fixed to the turntable 200.

[0051] The implementation principle of a drilling device for bearing inner rings according to an embodiment of this application is as follows: 1. The user places the bearing inner ring 1 on the loading track 310, and then fixes the bearing inner ring 1 in the fixture by the loading clamping assembly. Then, the drive assembly is turned on to rotate the turntable 200 to the drilling position. The drilling assembly drills the circumferential wall of the bearing inner ring 1. After drilling, the turntable 200 is rotated to the tapping position and the tapping assembly is used to tap the hole on the bearing inner ring 1. Finally, the unloading clamping assembly transports the bearing inner ring 1 to the unloading track 450. The conveyor belt in the unloading track 450 transports the bearing inner ring 1 to the next process, thereby automatically completing the drilling and tapping of the bearing inner ring 1, improving the automation level of the drilling device to save manpower and time, and improving the processing efficiency of the bearing inner ring 1.

[0052] 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 device for the inner ring of a bearing, characterized in that: The device includes a frame (100), on which a turntable (200) and a drive assembly for driving the turntable (200) to rotate are rotatably mounted. The turntable (200) is provided with multiple clamps for locking the inner ring (1) of the bearing. The frame (100) is provided with a loading structure for transporting the inner ring (1) of the bearing to the clamps and a unloading structure for removing the inner ring (1) of the bearing from the clamps. The loading structure includes a loading track (310) for transporting the inner ring (1) of the bearing one by one and a loading clamping assembly. The unloading structure includes a unloading track (450) for transporting the inner ring (1) of the bearing one by one and an unloading clamping assembly. The frame (100) is provided with a drilling assembly for drilling holes in the inner ring (1) of the bearing and a tapping assembly for tapping the inner ring (1). The loading structure, drilling assembly, tapping assembly, and unloading structure are arranged circumferentially along the circumferential wall of the turntable (200). The loading and clamping assembly includes a first moving module (320), a first slide (330), and a loading and clamping component. The first moving module (320) is used to drive the first slide (330) to move vertically and to drive the first slide (330) to move radially along the turntable (200). The loading and clamping component includes a first mounting block (340) connected to the first slide (330), a first clamping rod (350), a first clamping plate (360) connected to the first clamping rod (350), and a second clamping plate (370). One end of the first clamping rod (350) is connected to the first mounting block (340). The first clamping rod (350) is connected to the top of the first clamping plate (360) at the other end. The first clamping plate (360) is connected to the second clamping plate (370) through a telescopic member. The bottom of the second clamping plate (370) is connected to a clamping member for clamping the bearing inner ring (1). The clamp includes a placement seat (210) for placing the bearing inner ring (1) and a driving member for disengaging the bearing inner ring (1) from the clamping member. The placement seat (210) has a placement groove. The bearing inner ring (1) is slidably connected to the placement groove and the sliding direction is vertical. The clamping component includes a first support rod (381), two first clamping blocks (382), and two first springs (383). One end of the first support rod (381) is connected to the center of the bottom of the second clamping plate (370). The two first clamping blocks (382) are located on both sides of the first support rod (381). The bottom of the second clamping plate (370) is provided with a first sliding groove. The top of the two first clamping blocks (382) is connected to a first slider. The first slider is slidably connected to the first sliding groove and slides radially along the turntable (200). One end of the first spring (383) is connected to the side of the first clamping block (382) near the first support rod (381), and the other end of the first spring (383) is connected to the first support rod (381). The bottom of the first clamping block (382) is provided with a first guide slope. When the first clamping block (382) descends, the first guide slope abuts against the inner wall of the bearing inner ring (1) to bring the two first clamping blocks (382) closer to each other. The telescopic component includes a telescopic rod (371) and a second spring (372). A sliding hole is provided on the first clamping plate (360), through which the telescopic rod (371) slides. The second spring (372) is located between the first clamping plate (360) and the second clamping plate (370) and is sleeved on the telescopic rod (371). The driving component includes a driving frame (221), a movable rod, a third spring (223), a push plate (224), and two moving blocks (225). The driving frame (221) is connected to the bottom wall of the placement groove. Moving blocks (225) are slidably connected to both ends of the driving frame (221) and the sliding direction is radial along the placement groove. The side of the two sets of moving blocks (225) that are close to each other is an inclined surface. A push plate (224) is slidably connected between the inclined surfaces of the second clamping plate (225). A movable rod is connected to the top of the push plate (224). One end of the movable rod passes through the drive frame (221) and extends to the outside of the drive frame (221). A pressing block (227) is connected to the end of the movable rod located outside the drive frame (221). A connecting rod (229) is connected to the side of the moving block (225) away from the push plate (224). A fifth spring (228) is sleeved on the connecting rod (229). The end of the connecting rod (229) away from the moving block (225) passes through the drive frame (221) and is connected to an inner expansion block (226). When the second clamping plate (370) descends, the first support rod (381) abuts against the pressing block (227).

2. The drilling device for the inner ring of a bearing according to claim 1, characterized in that: The unloading clamping assembly includes a second moving module (410), a second slide (420), and an unloading clamping component. The unloading clamping component includes a second mounting block (431) connected to the second slide (420), a second clamping rod (432), a third clamping plate connected to the second clamping rod (432), a second support rod (444), two second clamping blocks (445), and two fourth springs (446). One end of the second clamping rod (432) is connected to the second mounting block (431), and the other end of the second clamping rod (432) is connected to the top of the third clamping plate. One end of the second support rod (444) is connected to the center of the bottom of the third clamping plate. The two second clamping blocks (445) are connected to the center of the bottom of the third clamping plate. The second clamping blocks (445) are located on both sides of the second support rod (444). The bottom of the third clamping plate is provided with a second sliding groove. The top of the two second clamping blocks (445) is connected to a second slider. The second slider is slidably connected to the second sliding groove and slides radially along the turntable (200). One end of the fourth spring (446) is connected to the side of the second clamping block (445) near the second support rod (444). The other end of the fourth spring (446) is connected to the second support rod (444). The bottom of the second clamping block (445) is provided with a second guide slope. When the second clamping block (445) descends, the second guide slope abuts against the outer wall of the inner ring (1) of the bearing so that the two second clamping blocks (445) move away from each other.

3. The drilling device for the inner ring of a bearing according to claim 2, characterized in that: An opening block (451) is provided at the end of the feeding track (450) near the turntable (200). An opening guide slope is provided on the top of the opening block (451). When the second gripping block (445) descends, the second guide slope abuts against the opening guide slope so that the two second gripping blocks (445) move away from each other.

4. The drilling device for the inner ring of a bearing according to claim 1, characterized in that: It also includes a cooling assembly, which comprises multiple nozzles (510), multiple water tanks (520), a recovery tank (530), and a circulation pump (540). The water tanks (520) are connected to an inlet pipe (521), the other end of which is connected to a drilling fluid source. One end of each nozzle (510) is connected to a water tank (520), and the other end of each nozzle (510) is located above a clamp near the drilling or tapping assembly. The recovery tank (530)... Located below the turntable (200), the inlet of the circulation pump (540) is connected to the recycling tank (530), and a filter screen for filtering metal debris is provided on the opening connecting the circulation pump (540) and the recycling tank (530). The outlet of the circulation pump (540) is connected to multiple water tanks (520). An extrusion assembly is provided inside the water tank (520). The extrusion assembly is used to generate pressure on the drilling fluid in the water tank (520) so that the drilling fluid is sprayed out from the nozzle (510).

5. The drilling device for the inner ring of a bearing according to claim 4, characterized in that: The drilling assembly includes two drilling bases (710), two drilling hydraulic cylinders (720), and two drilling parts (730). The tapping assembly includes a tapping base (810), a tapping hydraulic cylinder (820), and a tapping part (830). Both drilling bases (710) are connected to the frame (100), and the two drilling hydraulic cylinders (720) are respectively connected to the two drilling bases (710). The piston rods of the two drilling hydraulic cylinders (720) are respectively connected to the two drilling parts (730) through connecting parts. Both tapping bases (810) are connected to the frame (100), and the two tapping hydraulic cylinders (820) are respectively connected to the two tapping bases (810). The piston rods of the two tapping hydraulic cylinders (820) are respectively connected to the two tapping parts (830) through connecting parts.

6. The drilling device for the inner ring of a bearing according to claim 5, characterized in that: The extrusion assembly includes a push rod (551), an extrusion rod (552), an extrusion plate (553), and a sixth spring (556). The connector includes a connecting seat (600), which is connected to a drilling component (730) or a tapping component (830). The connecting seat (600) is also connected to a drilling hydraulic cylinder (720) or a tapping hydraulic cylinder (820). The push rod (551) is connected to the connecting seat (600). One end of the extrusion rod (552) passes through the top of the water tank (520) and enters the interior of the water tank (520) to connect with the extrusion plate (553). The extrusion plate (553) is sealed and slidably connected to the water tank (520) in a vertical direction. The sixth spring (556) is sleeved on one end of the extrusion rod (552) located outside the water tank (520). The top of the extrusion rod (552) is connected to a guide rod (557). The connecting seat (600) is connected to the push rod (551). When the drilling hydraulic cylinder (720) or tapping hydraulic cylinder (820) is in operation, the push rod (551) and the guide slope of the guide rod (557) abut against each other to make the extrusion rod (552) move vertically downward.

7. The drilling device for the inner ring of a bearing according to claim 4, characterized in that: The drive assembly includes a motor (910), a driving bevel gear (920), a first driven bevel gear (930), and a second driven bevel gear (940). The first driven bevel gear (930) and the second driven bevel gear (940) are both meshed with the driving bevel gear (920). The output shaft of the motor (910) is circumferentially fixed to the driving bevel gear (920). A stirring rod (531) is provided inside the recycling bin (530). The stirring rod (531) is circumferentially fixed to the second driven bevel gear (940), and the first driven bevel gear (930) is circumferentially fixed to the turntable (200).

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