A bearing inner ring machining device

Abstract

The application relates to the technical field of bearing inner ring machining, in particular to a bearing inner ring machining equipment, which comprises a base, a polishing motor, a top cover and a supporting ring, a discharging hole is arranged in the middle of the base, a supporting column is arranged in the discharging hole, an outer ring is arranged at the top of the discharging hole, the top of the supporting column is higher than that of the outer ring, a first clamping mechanism is arranged on the outer ring, a second clamping mechanism is arranged on the top of the base, a driving shaft is arranged on the polishing motor, a scraping disc is arranged at the bottom of the driving shaft, an adjusting sliding block is slidably arranged on the top cover, L-shaped mounting blocks are arranged on the two sides of the adjusting sliding block, L-shaped baffles are arranged on the bottoms of the two L-shaped mounting blocks, an extension abutting mechanism is arranged at the front of the L-shaped baffle, an L-shaped cantilever is arranged on one side of the adjusting sliding block, an L-shaped scraper and a reset mechanism are arranged on the L-shaped cantilever, an abutting rod is arranged at one end of the L-shaped scraper, and a rotating mechanism and two axial adjusting mechanisms are arranged on the top of the supporting ring. The application improves the machining efficiency and machining quality of the bearing inner ring.

Description

Technical Field

[0001] This invention relates to the field of bearing inner ring machining technology, specifically to a bearing inner ring machining equipment. Background Technology

[0002] During bearing machining, burrs and other protrusions are easily generated on the machined surface, typically on the inner ring. This is because the machining equipment is limited in size during inner ring machining, leading to a decrease in machining accuracy. Therefore, to facilitate later installation, these burrs need to be removed, primarily through scraping. Scraping involves using a scraper or scraper to remove a small amount of metal from the surface of the machined workpiece to improve surface shape accuracy and enhance the contact between mating surfaces. Scraping is an important method for final finishing various surfaces in mechanical manufacturing and repair.

[0003] Chinese invention patent CN119870615A discloses a bearing inner ring machining device, including a protective frame, a scraper, and a reset assembly. This invention uses a protective frame that works in conjunction with the bearing inner ring to form a protective barrier on the outside of the scraper disc, preventing the further spread of splashed chips. The pre-reserved gap between the inner and outer sides of the outer ring collects falling chips, achieving self-cleaning and self-collection functions, reducing subsequent cleaning work. Simultaneously, the reset scraper removes chips adhering to the inner wall of the protective frame, promptly clearing the adhering chips from the protected area and preventing continuous chip accumulation that could affect the protective effect.

[0004] However, the above-mentioned patent still has the following shortcomings in actual use: 1. The patent uses the protective chamber formed by the protective frame and the inner ring to block the flying scraping chips, but the protective frame is U-shaped. Whether the base rotates clockwise or counterclockwise, one end of the protective frame will first come into contact with the burrs remaining on the inner wall of the bearing inner ring. These burrs will easily cause wear on the end of the protective frame, so the protective frame needs to be maintained frequently, which affects the processing efficiency of the bearing inner ring; 2. The patent uses a hydraulic rod to drive the scraper to move downward, so that the scraper directly comes into contact with the inner wall of the bearing inner ring. This means that the scraper can only clean the burrs on the bearing inner ring of a specified inner diameter, which is quite limited. The bottom end of the scraper is also prone to hitting the top edge of the bearing inner ring, which affects the processing quality of the bearing inner ring. Summary of the Invention

[0005] To overcome the above deficiencies, the present invention provides a bearing inner ring machining equipment to solve the problem of how to improve the machining efficiency and quality of bearing inner rings mentioned in the background art.

[0006] The technical solution of this invention is:

[0007] A bearing inner ring processing device includes a base, a grinding motor, a top cover, and a support ring. The base has a discharge hole in its center, and a support column is installed inside the discharge hole. Multiple connecting columns connected to the inner wall of the discharge hole are provided on the outer wall of the support column. An outer ring is connected to the top of the discharge hole, and the top of the support column is higher than the top of the outer ring. A first clamping mechanism for holding the bearing inner ring is installed on the outer ring. A second clamping mechanism for holding the bearing inner ring is provided on the top of the base. A drive shaft is installed on the grinding motor, and a scraper disc is provided at the bottom end of the drive shaft. An adjusting slider is slidably mounted on the top cover. The adjusting slider has a rotating hole that mates with the drive shaft. The inner top wall of the top cover has a moving groove for the drive shaft to move. Both sides of the adjusting slider have L-shaped mounting blocks. The bottom of the two L-shaped mounting blocks is equipped with an L-shaped baffle. The front of the L-shaped baffle is equipped with a telescopic clamping mechanism. One side of the adjusting slider has an L-shaped cantilever. An L-shaped scraper and a reset mechanism are mounted on the L-shaped cantilever. One end of the L-shaped scraper is equipped with an abutment rod. The top of the support ring is equipped with a rotating mechanism for driving the base to rotate and two axial adjustment mechanisms for driving the grinding motor to move up, down, forward, and backward. The base is rotatably mounted on the support ring.

[0008] Preferably, the first clamping mechanism includes a plurality of horizontal sliding rods, an abutment block is slidably provided on the horizontal sliding rod, the top end of the abutment block is provided with an inner chamfer, one end of the horizontal sliding rod is provided with a first limiting block, a first spring is provided between the back of the abutment block and the first limiting block, and the plurality of horizontal sliding rods are installed at equal angles around the circumference of the outer ring on the outer wall of the outer ring.

[0009] Preferably, the second clamping mechanism includes four rotating seats, two bidirectional screws, two V-shaped clamps, and a clamping motor. One end of each bidirectional screw is provided with a sprocket, and both ends of each V-shaped clamp are provided with moving blocks that cooperate with the bidirectional screws. The four rotating seats are rectangularly distributed around the outer ring. The bidirectional screws are rotatably mounted on two rotating seats. The two V-shaped clamps are symmetrically arranged. The clamping motor is mounted on one of the rotating seats, and the output end of the clamping motor is connected to the other end of one of the bidirectional screws. The two sprockets are connected by chain drive.

[0010] Preferably, the telescopic clamping mechanism includes an abutment, a corrugated telescopic tube, and a transmission block. The head of the abutment has an arc-shaped surface, and the back of the abutment has two telescopic rods that are symmetrically arranged vertically. The back of the transmission block has multiple second springs. The back of the L-shaped baffle has an internal groove that slides with the transmission block and a closing plate. The front end of the internal groove has two telescopic holes that slide with the telescopic rods. One end of the telescopic rod is fixedly connected to the front of the transmission block, and both ends of the corrugated telescopic tube are fixedly connected to the front of the L-shaped baffle and the back of the abutment, respectively.

[0011] Preferably, the rotating mechanism includes a rotating motor, a driving gear, and a driven gear ring. The rotating motor is vertically mounted on the top of the support ring. The driving gear is fixedly connected to the output end of the rotating motor. The driven gear ring is mounted on the outer wall of the base and meshes with the driving gear.

[0012] Preferably, the reset mechanism includes a top frame, a synchronizing rod, and a third spring. A guide groove is provided on one side of the top of the L-shaped cantilever to slide with the synchronizing rod. The top frame is disposed on the top of the L-shaped cantilever, the synchronizing rod is slidably disposed in the top frame, and the third spring is disposed on the top of the synchronizing rod.

[0013] Preferably, the top frame has a side frame on its side wall, and a striking rod is slidably provided in the side frame. A linkage rod is provided on the back of the striking rod, and a second limiting block is provided at the tail end of the linkage rod. A fourth spring is provided between the second limiting block and the side frame. The head end of the striking rod has two first wedge surfaces arranged symmetrically at the top and bottom. The side wall of the synchronizing rod has multiple slots arranged at equal intervals along its height direction. Two second wedge surfaces arranged symmetrically at the top and bottom and cooperating with the first wedge surfaces are provided in the slots.

[0014] Preferably, a suspension block is provided on the outer wall of one end of the L-shaped baffle, a balance guide rod is provided on the top of the suspension block, and a sliding hole is provided on the abutment rod to cooperate with the balance guide rod.

[0015] Preferably, the dual-axis adjustment mechanism includes a vertical frame, a horizontal frame, and a lifting frame. The vertical frame is provided with a lifting electric push rod, the horizontal frame is provided with a pushing electric push rod, the vertical frame is located on top of the support ring, the horizontal frame is connected to the output end of the lifting electric push rod, the lifting frame is connected to the output end of the pushing electric push rod, and the grinding motor is located inside the lifting frame.

[0016] Preferably, the present invention further includes an air blowing mechanism for blowing air onto the L-shaped scraper. The air blowing mechanism includes a suspension rod, an air blowing head, and an air venting riser. A piston is slidably disposed inside the air venting riser. A lowering block is disposed at the bottom of the piston. A fifth spring is disposed at the top of the piston. Two third wedge surfaces are symmetrically arranged on the bottom of the lowering block. An exhaust head is disposed at the top of the air venting riser. An exhaust one-way valve is installed on the exhaust head. An air inlet head is disposed on the side wall of the air venting riser. An air inlet one-way valve is installed on the air inlet head. A plurality of mating blocks are disposed at equal intervals along the length direction at the top of the top cover. Two fourth wedge surfaces are symmetrically arranged on the side and mating with the third wedge surfaces. A through groove is opened at the middle end of the top of the L-shaped cantilever to slide with the lowering block. The suspension rod is disposed at the top of the adjusting slider. The air blowing head is disposed on the suspension rod. The air venting riser is disposed at the middle end of the top of the L-shaped cantilever. The air blowing head is connected to the exhaust one-way valve through a pipe.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] Firstly, the present invention can clamp various types of bearing inner rings by means of the cooperation of the first clamping mechanism and the second clamping mechanism. The L-shaped baffle cooperates with the inner wall of the outer ring to form a protective area with an opening. After the rotating mechanism drives the base to rotate, the scraper can first contact the burrs, so that the telescopic clamping mechanism can abut against the burr-free inner wall of the bearing inner ring, reducing the damage rate. The two-axis adjustment mechanism can drive the scraper to move in two axes, improving the movement flexibility of the scraper, that is, improving the processing quality of the bearing inner ring.

[0019] Secondly, the present invention enables the striking rod to continuously strike the synchronizing rod when the lifting frame moves up and down through the cooperation between the abutting rod, the synchronizing rod, the third spring, the fourth spring, the first wedge surface, and the second wedge surface, thereby achieving automatic cleaning of the chips stuck at the bottom of the L-shaped scraper.

[0020] Thirdly, the present invention, through the cooperation of two axial adjustment mechanisms and air blowing mechanism, enables the air blowing head to continuously blow air onto the L-shaped scraper, thereby thoroughly cleaning the chips stuck at the bottom of the L-shaped scraper. Attached Figure Description

[0021] Figure 1 This is a front view of the bearing inner ring machining equipment of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the bearing inner ring machining equipment of the present invention. Figure One ;

[0023] Figure 3 This is a three-dimensional structural diagram of the bearing inner ring machining equipment of the present invention. Figure Two ;

[0024] Figure 4 This is a partial structural diagram of the bearing inner ring machining equipment of the present invention. Figure One ;

[0025] Figure 5 This is a schematic diagram of the two-axis adjustment mechanism of the present invention;

[0026] Figure 6 This is a partial structural diagram of the bearing inner ring machining equipment of the present invention. Figure Two ;

[0027] Figure 7 This is a partial structural diagram of the bearing inner ring machining equipment of the present invention. Figure Three ;

[0028] Figure 8 This is a partial cross-sectional view of the L-shaped baffle of the present invention;

[0029] Figure 9 This is a cross-sectional view of the reset mechanism of the present invention;

[0030] Figure 10 This is a partial cross-sectional view of the air blowing mechanism of the present invention.

[0031] In the picture:

[0032] 1. Base; 11. Discharge hole; 12. Support column; 121. Connecting column; 13. Outer ring; 2. Grinding motor; 21. Drive shaft; 22. Scraper disc; 3. Top cover; 31. Adjusting slider; 311. L-shaped mounting block; 32. Moving groove; 33. L-shaped baffle; 331. Internal groove; 332. Sealing plate; 333. Suspension block; 334. Balance guide rod; 34. L-shaped cantilever; 341. Guide groove; 342. Through groove 35. L-shaped scraper; 36. Abutting rod; 37. Mating block; 371. Fourth wedge surface; 4. Support ring; 5. First clamping mechanism; 51. Horizontal slide bar; 52. Abutting block; 53. First limiting block; 54. First spring; 6. Second clamping mechanism; 61. Rotating seat; 62. Bidirectional screw; 63. V-shaped clamping plate; 64. Clamping motor; 65. Sprocket; 66. Moving block; 7. Telescopic abutting mechanism; 71. Abutting joint 72. Corrugated telescopic tube; 73. Transmission block; 74. Telescopic rod; 75. Second spring; 8. Reset mechanism; 81. Top frame; 82. Synchronizing rod; 821. Slot; 822. Second wedge surface; 83. Third spring; 84. Side frame; 85. Striking rod; 851. First wedge surface; 86. Linkage rod; 87. Second limit block; 88. Fourth spring; 9. Rotating mechanism; 91. Rotating motor; 92. Drive gear; 9 3. Driven gear ring; 10. Two-axis adjustment mechanism; 101. Upright frame; 102. Horizontal frame; 103. Lifting frame; 104. Lifting electric push rod; 105. Pushing electric push rod; 20. Air blowing mechanism; 201. Suspension rod; 202. Air blowing head; 203. Ventilation riser; 2031. Exhaust head; 2032. Air inlet head; 204. Piston; 205. Lowering block; 2051. Third wedge surface; 206. Fifth spring. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1-10 The present invention will describe the above technical solution in detail through the following embodiments:

[0035] A bearing inner ring processing device includes a base 1, a grinding motor 2, a top cover 3, and a support ring 4. The base 1 has a discharge hole 11 in its middle, and a support column 12 is installed inside the discharge hole 11. Multiple connecting columns 121 connected to the inner wall of the discharge hole 11 are provided on the outer wall of the support column 12. An outer ring 13 is connected to the top of the discharge hole 11, and the top of the support column 12 is higher than the top of the outer ring 13. A first clamping mechanism 5 for clamping the bearing inner ring is installed on the outer ring 13. A second clamping mechanism 6 for clamping the bearing inner ring is provided on the top of the base 1. A drive shaft 21 is installed on the grinding motor 2, and a scraper disc 22 is provided at the bottom end of the drive shaft 21. An adjusting slider 31 is slidably provided on the top cover 3 for adjustment. The slider 31 is provided with a rotating hole that mates with the drive shaft 21. The inner top wall of the top cover 3 is provided with a moving groove 32 for the drive shaft 21 to move. Both sides of the slider 31 are provided with L-shaped mounting blocks 311. The bottom of the two L-shaped mounting blocks 311 is provided with L-shaped baffles 33. The front of the L-shaped baffles 33 is provided with a telescopic clamping mechanism 7. One side of the slider 31 is provided with an L-shaped cantilever 34. An L-shaped scraper 35 and a reset mechanism 8 are installed on the L-shaped cantilever 34. One end of the L-shaped scraper 35 is provided with an abutment rod 36. The top of the support ring 4 is provided with a rotating mechanism 9 for driving the base 1 to rotate and two axial adjustment mechanisms 10 for driving the grinding motor 2 to move up, down and back. The base 1 is rotatably mounted on the support ring 4.

[0036] This invention, through the cooperation of the first clamping mechanism 5 and the second clamping mechanism 6, can clamp various types of bearing inner rings. The L-shaped baffle 33 cooperates with the inner wall of the outer ring 13 to form a protective area with an opening. After the rotating mechanism 9 drives the base 1 to rotate, the scraper 22 can preferentially contact the burrs, so that the telescopic clamping mechanism 7 can abut against the burr-free inner wall of the bearing inner ring, reducing the damage rate. The two-axis adjustment mechanism 10 can drive the scraper 22 to move in two axes, improving the movement flexibility of the scraper 22, that is, improving the processing quality of the bearing inner ring.

[0037] When using this device, the inner ring of the bearing is first pressed down to the top of the outer ring 13. The inner ring of the bearing is initially clamped by the first clamping mechanism 5. The first clamping mechanism 5 includes multiple horizontal sliding rods 51. Abutment blocks 52 are slidably provided on the horizontal sliding rods 51. The top of the abutment blocks 52 is provided with an inner chamfer. A first limiting block 53 is provided at one end of the horizontal sliding rods 51. A first spring 54 is provided between the back of the abutment blocks 52 and the first limiting block 53. The multiple horizontal sliding rods 51 are installed at equal angles around the circumference of the outer ring 13 on the outer wall of the outer ring 13.

[0038] Pressing the inner ring of the bearing down towards the top of the outer ring 13 allows the inner ring to press against the abutment block 52 via its inner chamfer. Then, the abutment block 52 moves outward on the horizontal slide bar 51, compressing the first spring 54. The elastic force of the first spring 54 applies a force to the abutment block 52 in the direction of the outer ring 13 axis. All abutment blocks 52 can quickly and initially clamp the inner ring of the bearing. The inner diameter of the inner ring of the bearing is not greater than the inner diameter of the outer ring 13, which ensures that the chips can enter the discharge hole 11 and avoids the chips from being stuck at the top of the outer ring 13. Multiple abutment blocks 52 can cooperate to clamp bearing inner rings with different outer diameters, improving flexibility and applicability.

[0039] Subsequently, the inner ring of the bearing is clamped a second time by the second clamping mechanism 6 to ensure the stability of the inner ring clamping. The second clamping mechanism 6 includes four rotating seats 61, two bidirectional screws 62, two V-shaped clamping plates 63 and a clamping motor 64. One end of the bidirectional screw 62 is provided with a sprocket 65, and both ends of the V-shaped clamping plates 63 are provided with moving blocks 66 that cooperate with the bidirectional screws 62. The four rotating seats 61 are rectangularly distributed around the outer ring 13. The bidirectional screws 62 are rotatably mounted on two rotating seats 61. The two V-shaped clamping plates 63 are symmetrically arranged. The clamping motor 64 is mounted on one of the rotating seats 61, and the output end of the clamping motor 64 is connected to the other end of one of the bidirectional screws 62. The two sprockets 65 are connected by chain drive.

[0040] The clamping motor 64 drives the corresponding bidirectional screw 62 to rotate, which in turn drives the corresponding sprocket 65 to rotate. The sprocket 65 drives another sprocket 65 and another bidirectional screw 62 to rotate synchronously via a chain. After the two bidirectional screws 62 rotate synchronously, the two moving blocks 66 on the bidirectional screws 62 move relative to each other or in opposite directions, thereby causing the two V-shaped clamps 63 to move relative to each other or in opposite directions. After the two V-shaped clamps 63 move relative to each other, they can clamp the inner rings of bearings with different outer diameters, improving flexibility and applicability.

[0041] Subsequently, the scraper disc 22 is driven to abut against the inner wall of the bearing inner ring by the two-axis adjustment mechanism 10. The two-axis adjustment mechanism 10 includes a vertical frame 101, a horizontal frame 102 and a lifting frame 103. The vertical frame 101 is provided with a lifting electric push rod 104, and the horizontal frame 102 is provided with a pushing electric push rod 105. The vertical frame 101 is set on the top of the support ring 4. The horizontal frame 102 is connected to the output end of the lifting electric push rod 104, and the lifting frame 103 is connected to the output end of the pushing electric push rod 105. The grinding motor 2 is set in the lifting frame 103.

[0042] The lifting electric push rod 104 can drive the cross frame 102 and the lifting frame 103 to move up and down. The pushing electric push rod 105 can drive the lifting frame 103 to move back and forth. The grinding motor 2, drive shaft 21, top cover 3, scraper disc 22, and adjusting slider 31 all move synchronously up and down and back and forth along the lifting frame 103. First, the lifting frame 103 is driven to descend. The abutment rod 36 first abuts against the inner ring of the bearing and the top of the support column 12. After the abutment rod 36 is obstructed, it... Unable to move downwards, the abutment rod 36 causes the L-shaped scraper 35 to also be unable to move downwards. After the L-shaped baffle 33 and the scraper disc 22 are inserted into the discharge hole, the lifting frame 103 is driven to move backwards. The L-shaped baffle 33, the drive shaft 21 and the scraper disc 22 move towards the inner wall of the bearing inner ring. The drive shaft 21 drives the adjusting slider 31 to move synchronously on the top cover 3. The moving groove 32 provides a moving area for the drive shaft 21, and the adjusting slider 31 always keeps the moving groove 32 closed.

[0043] The L-shaped baffle 33 drives the telescopic clamping mechanism 7 to move synchronously. The telescopic clamping mechanism 7 includes abutment 71, corrugated telescopic tube 72 and transmission block 73. The head of abutment 71 is provided with an arc-shaped surface, and the back of abutment 71 is provided with two telescopic rods 74 that are symmetrically arranged vertically. The back of transmission block 73 is provided with multiple second springs 75. The back of L-shaped baffle 33 is provided with an internal groove 331 that slides with transmission block 73 and a closing plate 332. The front end of internal groove 331 is provided with two telescopic holes that slide with telescopic rods 74. One end of telescopic rod 74 is fixedly connected to the front of transmission block 73. The two ends of corrugated telescopic tube 72 are fixedly connected to the front of L-shaped baffle 33 and the back of abutment 71, respectively.

[0044] The abutment 71 first abuts against the inner wall of the bearing inner ring. The abutment 71 drives the telescopic rod 74 to move backward. The telescopic rod 74 drives the transmission block 73 to move backward in the built-in groove 331. The second spring 75 is compressed, and the corrugated telescopic tube 72 is also compressed. This ensures that the L-shaped baffle 33 always blocks one side of the protected area. After the scraper 22 abuts against the inner wall of the bearing inner ring, the two axial adjustment mechanisms 10 stop working.

[0045] Then, the grinding motor 2 drives the drive shaft 21 to rotate, and the drive shaft 21 drives the scraper 22 to rotate. The scraper 22 begins to deburr the inner wall of the bearing inner ring. Then, the rotating mechanism 9 drives the base 1 to rotate, and the base 1 drives the bearing inner ring to rotate synchronously. The rotating mechanism 9 includes a rotating motor 91, a drive gear 92, and a driven gear ring 93. The rotating motor 91 is vertically mounted on the top of the support ring 4. The drive gear 92 is fixedly connected to the output end of the rotating motor 91. The driven gear ring 93 is mounted on the outer wall of the base 1 and meshes with the drive gear 92.

[0046] The rotating motor 91 drives the drive gear 92 to rotate, which in turn drives the driven gear ring 93 to rotate, and the driven gear ring 93 drives the base 1 to rotate synchronously.

[0047] After the burrs on the inner ring of the bearing are removed, the two axial adjustment mechanisms 10 drive the scraper disk 22 to move upward. The reset mechanism 8 allows the L-shaped scraper 35 to move upward asynchronously, so that the L-shaped scraper 35 can scrape the inner wall of the L-shaped baffle 33, thus removing the chips stuck on the L-shaped baffle 33. The reset mechanism 8 includes a top frame 81, a synchronizing rod 82 and a third spring 83. A guide groove 341 that slides with the synchronizing rod 82 is provided on one side of the top of the L-shaped cantilever 34. The top frame 81 is set on the top of the L-shaped cantilever 34, the synchronizing rod 82 is slidably set in the top frame 81, and the third spring 83 is set on the top of the synchronizing rod 82.

[0048] When the lifting frame 103 moves downward, the abutment rod 36 stops moving downward when it abuts against the top of the bearing inner ring and the support column 12. The synchronizing rod 82 also stops moving downward synchronously. The synchronizing rod 82 gradually retracts into the top frame 81. The third spring 83 is compressed by the abutment of the synchronizing rod 82. When the lifting frame 103 moves upward, the elastic force of the third spring 83 can drive the synchronizing rod 82 to move downward. The synchronizing rod 82 drives the abutment rod 36 to move downward, so that the abutment rod 36 always abuts against the top of the bearing inner ring and the support column 12. After the scraper disc 22 and the L-shaped baffle 33 are disengaged from the discharge hole 11, the abutment rod 36 moves upward synchronously with the lifting frame 103.

[0049] Furthermore, a suspension block 333 is provided on the outer wall of one end of the L-shaped baffle 33, and a balance guide rod 334 is provided on the top of the suspension block 333. A sliding hole is provided on the abutment rod 36 to cooperate with the balance guide rod 334. The suspension block 333 limits the position of the abutment rod 36. The cooperation between the balance guide rod 334 and the sliding hole improves the stability of the lifting and lowering movement of the L-shaped scraper 35.

[0050] A side frame 84 is provided on the side wall of the top frame 81. A striking rod 85 is slidably provided inside the side frame 84. A linkage rod 86 is provided on the back of the striking rod 85. A second limiting block 87 is provided at the tail end of the linkage rod 86. A fourth spring 88 is provided between the second limiting block 87 and the side frame 84. Two first wedge surfaces 851 are provided at the head end of the striking rod 85. Multiple slots 821 are provided on the side wall of the synchronizing rod 82, which are equally spaced along its height direction. Two second wedge surfaces 822 are provided in the slots 821, which are symmetrically arranged and cooperate with the first wedge surfaces 851.

[0051] When the lifting frame 103 moves downward, the synchronizing rod 82 gradually retracts into the top frame 81. The second wedge surface 822 located at the bottom of the slot 821 abuts against the first wedge surface 851 located at the bottom of the striking rod 85. The first wedge surface 851 and the second wedge surface 822 cooperate to drive the striking rod 85 to retract into the side frame 84. The striking rod 85 drives the linkage rod 86 and the second limiting block 87 to move. The fourth spring 88 is also stretched. The striking rod 85 gradually disengages from the slot 821. After the striking rod 85 moves into the next slot 821, the elastic force of the fourth spring 88 can drive the linkage rod 86 to move rapidly in the opposite direction. The linkage rod 86 drives the striking rod 85 to strike the synchronizing rod 82. This cycle repeats, and the synchronizing rod 82 can be continuously struck. This striking force can be transmitted to the L-shaped scraper 35, which can automatically clean up the chips stuck at the bottom of the L-shaped scraper 35. Of course, when the lifting frame moves upward, the synchronizing rod 82 can also be continuously struck.

[0052] The present invention also includes an air blowing mechanism 20 capable of blowing air onto the L-shaped scraper 35, thereby thoroughly cleaning the chips trapped at the bottom of the L-shaped scraper 35. The air blowing mechanism 20 includes a suspension rod 201, an air blowing head 202, and an air venting riser 203. A piston 204 is slidably disposed inside the air venting riser 203. A downward moving block 205 is disposed at the bottom of the piston 204, and a fifth spring 206 is disposed at the top of the piston 204. Two third wedge surfaces 2051 are symmetrically arranged at the bottom of the downward moving block 205. An exhaust head 2031 is disposed at the top of the air venting riser 203, and an exhaust one-way valve is installed on the exhaust head 2031. An air inlet head 2032 is provided on the side wall of 03. An air inlet one-way valve is installed on the air inlet head 2032. The top of the top cover 3 is provided with multiple mating blocks 37 that are equally spaced along its length. The mating blocks 37 are provided with two fourth wedge surfaces 371 that are symmetrically arranged and cooperate with the third wedge surface 2051. The middle of the top of the L-shaped cantilever 34 is provided with a through groove 342 that slides with the lowering block 205. The suspension rod 201 is provided on the top of the adjusting slider 31. The air blowing head 202 is provided on the suspension rod 201. The ventilation riser 203 is provided on the middle of the top of the L-shaped cantilever 34. The air blowing head 202 is connected to the exhaust one-way valve through a pipe.

[0053] After the burrs on the inner wall of the bearing inner ring are cleaned, the lifting frame 103 is driven to move back and forth through the two-axis adjustment mechanism 10. The lifting frame 103 drives the adjusting slider 31 to move synchronously, and the adjusting slider 31 drives the L-shaped cantilever 34 to move synchronously. The third wedge surface 2051 on one side of the lowering block 205 abuts against the fourth wedge surface 371 on one side of the mating block 37. Then, the third wedge surface 2051 and the fourth wedge surface 371 cooperate to make the lowering block 205 move upward. The lowering block 205 drives the piston 204 to move upward in the ventilation riser 203, and the fifth spring 206 is compressed. That is, the piston 204 performs a squeezing operation on the inside of the ventilation riser 203. By cooperating with the intake one-way valve and the exhaust one-way valve, the gas inside the ventilation riser 203 enters the air blowing head 202 through the exhaust head 2031 and the pipe, and then is ejected from the air blowing head 202. The ejected gas can act on the L-shaped scraper 35, and after the third wedge surface 2051 is separated from the corresponding fourth wedge surface 371, the fifth spring 206 can drive the piston 204 to move down, that is, the piston 204 performs a pulling operation on the ventilation riser 203. By cooperating with the intake one-way valve and the exhaust one-way valve, external air enters the ventilation riser 203 through the intake head 2032. This cycle continues, and the air blowing head 202 can continuously spray gas.

[0054] The chips can fall into the discharge hole 11 and then be discharged from the discharge hole 11. To facilitate the collection of chips, a collection frame can be placed below the discharge hole 11.

Claims

1. A bearing inner race machining apparatus characterized by: Including base (1), polishing motor (2), top cover (3) and support ring (4), the middle part of base (1) is provided with discharge hole (11), support column (12) is arranged in discharge hole (11), a plurality of connecting columns (121) are arranged on the outer wall of support column (12) and are connected with the inner wall of discharge hole (11), the top of discharge hole (11) is provided with outer ring (13) connected therewith, the top of support column (12) is higher than the top of outer ring (13), first clamping mechanism (5) for clamping bearing inner ring is installed on outer ring (13), the top of base (1) is provided with second clamping mechanism (6) for clamping bearing inner ring, drive shaft (21) is installed on polishing motor (2), the bottom end of drive shaft (21) is provided with skiving disc (22), adjusting sliding block (31) is slidably arranged on top cover (3), adjusting sliding block (31) is provided with rotating hole matched with drive shaft (21), the inner top wall of top cover (3) is provided with moving groove (32) for the movement of drive shaft (21), both sides of adjusting sliding block (31) are provided with L-shaped mounting block (311), L-shaped baffle (33) is installed on the bottom of two L-shaped mounting blocks (311), telescopic abutting mechanism (7) is arranged on the front of L-shaped baffle (33), one side of adjusting sliding block (31) is provided with L-shaped cantilever (34), L-shaped scraper (35) and reset mechanism (8) are installed on L-shaped cantilever (34), one end of L-shaped scraper (35) is provided with abutting rod (36), reset mechanism (8) comprises top frame (81), synchronous rod (82) and third spring (83), side frame (84) is arranged on the side wall of top frame (81), knocking rod (85) is slidably arranged in side frame (84), linkage rod (86) is arranged on the back of knocking rod (85), second limiting block (87) is arranged at the tail end of linkage rod (86), fourth spring (88) is arranged between second limiting block (87) and side frame (84), the head end of knocking rod (85) is provided with two first wedge surfaces (851) arranged symmetrically in up and down directions, a plurality of insertion grooves (821) are arranged on the side wall of synchronous rod (82) and are equidistantly arranged along the height direction of synchronous rod (82), two second wedge surfaces (822) are arranged in the insertion grooves (821) and are symmetrically arranged in up and down directions and are matched with first wedge surfaces (851), guide groove (341) is arranged on one side of the top of L-shaped cantilever (34) and is slidably matched with synchronous rod (82), top frame (81) is arranged on the top of L-shaped cantilever (34), synchronous rod (82) is slidably arranged in top frame (81), third spring (83) is arranged on the top of synchronous rod (82), rotating mechanism (9) for driving base (1) to rotate and two axial adjusting mechanisms (10) for driving polishing motor (2) to move up and down and front and back are arranged on the top of support ring (4), base (1) is rotatably arranged on support ring (4).

2. The bearing inner race machining apparatus of claim 1, wherein: The first clamping mechanism (5) comprises a plurality of transverse sliding rods (51), an abutting block (52) is slidably arranged on the transverse sliding rod (51), the top end of the abutting block (52) is provided with an inner chamfer, one end of the transverse sliding rod (51) is provided with a first limiting block (53), a first spring (54) is arranged between the back of the abutting block (52) and the first limiting block (53), and a plurality of transverse sliding rods (51) are equiangularly arranged on the outer wall of the outer ring (13).

3. The bearing inner race machining apparatus of claim 1, wherein: The second clamping mechanism (6) comprises four rotating seats (61), two bidirectional screws (62), two V-shaped clamping plates (63) and a clamping motor (64), one end of the bidirectional screw (62) is provided with a sprocket (65), both ends of the V-shaped clamping plate (63) are provided with a moving block (66) matched with the bidirectional screw (62), the four rotating seats (61) are arranged in a rectangular distribution around the outer ring (13), the bidirectional screw (62) is rotatably arranged on two rotating seats (61), the two V-shaped clamping plates (63) are symmetrically arranged, the clamping motor (64) is arranged on one of the rotating seats (61), and the output end of the clamping motor (64) is connected with the other end of one of the bidirectional screws (62), and the two sprockets (65) are connected through a chain transmission.

4. The bearing inner race machining apparatus of claim 1, wherein: The telescopic abutting mechanism (7) comprises an abutting head (71), a corrugated telescopic pipe (72) and a transmission block (73), the head of the abutting head (71) is provided with an arc surface, the back of the abutting head (71) is provided with two telescopic rods (74) which are symmetrically arranged in an up-down mode, the back of the transmission block (73) is provided with a plurality of second springs (75), the back of the L-shaped baffle (33) is provided with a built-in groove (331) and a sealing plate (332) which are slidably matched with the transmission block (73), the front end of the built-in groove (331) is provided with two telescopic holes which are slidably matched with the telescopic rods (74), one end of the telescopic rod (74) is fixedly connected with the front part of the transmission block (73), and the two ends of the corrugated telescopic pipe (72) are fixedly connected with the front part of the L-shaped baffle (33) and the back of the abutting head (71) respectively.

5. The bearing inner race machining apparatus of claim 1, wherein: The rotating mechanism (9) comprises a rotating motor (91), a driving gear (92) and a driven gear ring (93), the rotating motor (91) is vertically arranged on the top of the supporting ring (4), the driving gear (92) is fixedly connected with the output end of the rotating motor (91), and the driven gear ring (93) is arranged on the outer wall of the base (1).

6. The bearing inner race machining apparatus of claim 1, wherein: One end of the L-shaped baffle (33) is provided with a suspension block (333), the top of the suspension block (333) is provided with a balance guide rod (334), and the abutting rod (36) is provided with a sliding hole matched with the balance guide rod (334).

7. The bearing inner race machining apparatus of claim 1, wherein: The two axial adjusting mechanisms (10) comprise a stand (101), a cross frame (102) and a lifting frame (103), the stand (101) is internally provided with a lifting electric push rod (104), the cross frame (102) is internally provided with a push electric push rod (105), the stand (101) is arranged at the top of the supporting ring (4), the cross frame (102) is connected with the output end of the lifting electric push rod (104), the lifting frame (103) is connected with the output end of the push electric push rod (105), and the polishing motor (2) is arranged in the lifting frame (103).

8. The bearing inner race machining apparatus of claim 1, wherein: Further comprising a blowing mechanism (20) for blowing the L-shaped scraper (35), the blowing mechanism (20) comprises a suspension rod (201), a blowing head (202) and a ventilation stand pipe (203), the ventilation stand pipe (203) is internally provided with a piston (204) in sliding mode, the bottom of the piston (204) is provided with a downward moving block (205), the top of the piston (204) is provided with a fifth spring (206), the bottom of the downward moving block (205) is provided with two third wedge surfaces (2051) which are symmetrically arranged left and right, the top of the ventilation stand pipe (203) is provided with an exhaust head (2031), the exhaust head (2031) is provided with an exhaust one-way valve, the sidewall of the ventilation stand pipe (203) is provided with an air inlet head (2032), the air inlet head (2032) is provided with an air inlet one-way valve, the top of the top cover (3) is provided with a plurality of matching blocks (37) which are equidistantly arranged along the length direction, the matching blocks (37) are provided with two fourth wedge surfaces (371) which are symmetrically arranged left and right and matched with the third wedge surfaces (2051), the middle end of the top of the L-shaped cantilever (34) is provided with a through groove (342) which is matched with the downward moving block (205) in sliding mode, the suspension rod (201) is arranged at the top of the adjusting sliding block (31), the blowing head (202) is arranged on the suspension rod (201), the ventilation stand pipe (203) is arranged at the middle end of the top of the L-shaped cantilever (34), and the blowing head (202) is connected with the exhaust one-way valve through a pipeline.

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