Tapered roller bearing inner ring flange superfinishing device

Abstract

The utility model discloses a tapered roller bearing inner ring flange superfinishing device, which belongs to the technical field of bearing production and processing equipment, and comprises a support, a cylinder and an oilstone frame, the support comprises a fixed plate and an L-shaped support plate, the fixed plate is used for connecting a lower pinch roller support of a superfinishing machine, a first side plate of the L-shaped support plate is connected with the fixed plate, and a second side plate of the L-shaped support plate is connected with the oilstone frame. The air cylinder is arranged on a second side plate of the L-shaped supporting plate, an air cylinder connector is arranged at the output end of the air cylinder, a connecting block is arranged at the top of the fixing plate, the oilstone frame comprises a mounting part and a connecting part, the connecting part is arranged on the connecting block, the mounting part is provided with a hole channel used for allowing oilstone to penetrate through, and the end face of the hole channel is opposite to the air cylinder connector. The device is simple and practical in structure, and is matched with a superfinishing machine so as to realize superfinishing of the inner ring raceway of the tapered roller bearing and superfinishing of the inner ring flange of the tapered roller bearing.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bearing production and processing equipment technical field, especially relate to a conical roller bearing inner race flange superfinishing device. BACKGROUND

[0002] The superfinishing machine is used for high-precision machining of conical roller bearings, and is composed of a bed, a workpiece driving system, an oil stone oscillation system and the like. The superfinishing process is realized by the contact of the oil stone with the rotating bearing surface under a certain pressure and the high-frequency short-amplitude reciprocating oscillation movement to achieve micro-grinding. The pressure and speed can be accurately controlled during machining, and the pressure, workpiece rotation speed and oil stone reciprocating speed are different in the rough superfinishing and fine superfinishing stages. The existing superfinishing machine can only realize the superfinishing of the inner raceway of the conical roller bearing, and cannot simultaneously superfinish the inner race flange of the conical roller bearing. Based on this, the conical roller bearing inner race flange superfinishing device is proposed. SUMMARY

[0003] The utility model discloses a conical roller bearing inner race flange superfinishing device, which aims to solve the technical problem that the existing superfinishing machine cannot simultaneously superfinish the inner raceway and the inner race flange of the conical roller bearing.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0005] A conical roller bearing inner race flange superfinishing device, comprising a support, a cylinder and an oil stone holder, the support comprises a fixed plate and an L-shaped support plate, the fixed plate is used for connecting the lower pressing wheel support of the superfinishing machine, the first side plate of the L-shaped support plate is connected with the fixed plate, the cylinder is arranged on the second side plate of the L-shaped support plate, the output end of the cylinder is provided with a cylinder joint, the top of the fixed plate is provided with a connecting block, the oil stone holder comprises a mounting part and a connecting part, the connecting part is arranged on the connecting block, the mounting part is provided with a hole for passing the oil stone, and the end face of the hole is opposite to the cylinder joint.

[0006] Further, the oil stone holder is provided with an adjusting mechanism, the adjusting mechanism is used for adjusting the position of the oil stone holder, the adjusting mechanism comprises a fastening bolt, the top of the connecting block is provided with a first threaded hole, the connecting part is provided with a connecting groove which penetrates up and down along the extension and retraction direction of the cylinder, and the fastening bolt is threadedly connected with the first threaded hole through the connecting groove, and the fastening bolt is used for fixing the position of the oil stone holder.

[0007] Further, the oil stone holder is provided with an adjusting mechanism, the adjusting mechanism is used for adjusting the position of the oil stone holder, the oil stone holder and the connecting block are slidably connected along the extension and retraction direction of the cylinder, the adjusting mechanism comprises a stepping motor arranged on the connecting block and a lead screw arranged in the connecting part, the connecting part is provided with a threaded sleeve, and the threaded sleeve is threadedly connected with the lead screw.

[0008] Further, the mounting portion is provided with a clamping mechanism, the clamping mechanism comprises a pressing plate and a screw rod, the pressing plate is arranged in the hole and is parallel to the side wall of the hole, the two side edges of the pressing plate are slidably connected with the inner wall of the hole, and the pressing plate is used for abutting against the oil stone, the side wall of the hole is provided with a second threaded hole in position of the pressing plate, the screw rod is threadedly connected with the second threaded hole, one end of the screw rod is rotatably connected with the pressing plate, and the other end is provided with a hand holding portion.

[0009] Further, one side of the hand holding portion towards the hole is provided with a sliding channel, the sliding channel is slidably connected with a positioning rod, a spring is arranged between the end of the positioning rod and the inner end face of the sliding channel, the mounting portion is correspondingly provided with positioning holes, a plurality of positioning holes are uniformly arranged around the screw rod, and the end of the positioning rod penetrates into the positioning hole in position of the positioning rod to limit the screw rod.

[0010] Further, the rod body of the positioning rod located outside the hand holding portion is provided with a push rod connected vertically thereto, and the push rod is used for driving the positioning rod to separate from the positioning hole.

[0011] Compared with the defects and deficiencies of the prior art, the utility model has the following beneficial effects.

[0012] 1. The utility model provides a conical roller bearing inner ring baffle ultrafine grinding device, through fixed plate and ultrafine grinding machine's down pressure wheel support connection, make this conical roller bearing inner ring baffle ultrafine grinding device with down pressure wheel support movement, utilize cylinder to drive cylinder joint and oil stone abut, to realize the ultrafine grinding conical roller bearing inner ring raceway, simultaneously ultrafine grinding conical roller bearing inner ring baffle, be favorable to the product quality of conical roller bearing.

[0013] 2. Adjusting mechanism is used for adjusting the position of the oil stone frame to adapt to different specifications and sizes of conical roller bearings, and the oil stone frame is manually adjusted by using the fastening bolt, which has the advantage of low cost, and the oil stone frame is adjusted by using the stepping motor, which has the advantages of high adjustment accuracy and high adjustment efficiency.

[0014] 3. The mounting portion of the oil stone frame is provided with a clamping mechanism, and the oil stone is clamped and fixed in the hole by cooperation of the screw rod and the pressing plate, which facilitates oil stone replacement and is conducive to ensuring the stability of the oil stone fixation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of a conical roller bearing inner ring baffle ultrafine grinding device in the utility model.

[0016] Figure 2 It is a structure schematic view of one embodiment of the adjusting mechanism in the utility model.

[0017] Figure 3 It is a structure schematic view of another embodiment of the adjusting mechanism in the utility model.

[0018] Figure 4 is the structure diagram of the clamping mechanism of the oil stone rack in the utility model.

[0019] In the figure: 1, support; 2, fixed plate; 3, L-shaped support plate; 4, first side plate; 5, second side plate; 6, air cylinder; 7, air cylinder joint; 8, oil stone rack; 9, mounting portion; 10, connecting portion; 11, connecting block; 12, oil stone; 13, hole; 14, adjusting mechanism; 15, fastening bolt; 16, stepper motor; 17, screw rod; 18, threaded sleeve; 19, support rod; 20, recess; 21, first sliding groove; 22, first sliding block; 23, pressing plate; 24, screw rod; 25, hand-held portion; 26, slide; 27, spring; 28, positioning rod; 29, lever; 30, positioning hole; 31, second sliding groove; 32, connecting groove; 33, second threaded hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0021] Referring to Figures 1-4 A kind of conical roller bearing inner ring flange superfinishing device, including support 1, air cylinder 6 and oil stone rack 8, support 1 includes fixed plate 2 and L-shaped support plate 3, fixed plate 2 is used to connect the lower pressing wheel support of superfinishing machine, fixed plate 2 top surface is equipped with connecting block 11, oil stone rack 8 is set to the top of connecting block 11, L-shaped support plate 3 includes vertically connected first side plate 4 and second side plate 5, wherein, first side plate 4 is connected with the bottom surface of fixed plate 2, second side plate 5 is located at one side of fixed plate 2, air cylinder 6 is vertically set to one side of second side plate 5, second side plate 5 other side is equipped with air cylinder joint 7, the output end of air cylinder 6 is connected with air cylinder joint 7, oil stone rack 8 has connecting portion 10 and mounting portion 9, connecting portion 10 is connected with connecting block 11, mounting portion 9 is equipped with hole 13 for placing oil stone 12, hole 13 is opposite to the end surface of air cylinder joint 7.

[0022] In one embodiment, the connecting part 10 is provided with an adjusting mechanism 14, the adjusting mechanism 14 includes a fastening bolt 15, the top surface of the connecting block 11 is provided with a first threaded hole, the corresponding connecting part 10 is provided with a connecting groove 32 penetrating upward and downward, the extension direction of the connecting groove 32 is the same as the extension direction of the cylinder 6, the fastening bolt 15 is threadedly connected with the first threaded hole through the connecting groove 32, the bolt head of the fastening bolt 15 is pressed against the top surface of the connecting part 10, so as to fix the oil stone holder 8 to the connecting block 11, when processing different specifications of tapered roller bearings, the fastening bolt 15 is rotated, the bolt head at the top of the fastening bolt 15 is separated from the top surface of the connecting part 10, the position of the oil stone holder 8 is adjusted along the extension direction of the cylinder 6, after the oil stone holder 8 is moved to the target position, the fastening bolt 15 is tightened, and the bolt head at the top of the fastening bolt 15 is pressed against the connecting part 10 to fix the oil stone holder 8.

[0023] In the above embodiment, the oil stone holder 8 is manually adjusted, and the adjustment accuracy and efficiency are low. Therefore, we propose an improved adjusting mechanism 14.

[0024] The oil stone holder 8 is in sliding fit with the connecting block 11, specifically, the bottom of the oil stone holder 8 is provided with a first sliding block 22, the top surface of the connecting block 11 is provided with a first sliding groove 21 arranged along the extension direction of the cylinder 6, the first sliding block 22 is in sliding connection with the first sliding groove 21, the adjusting mechanism 14 includes a stepping motor 16 and a lead screw 17, the stepping motor 16 is arranged on the connecting block 11, the stepping motor 16 is located at one end in the sliding direction of the oil stone holder 8, the bottom surface of the connecting part 10 of the oil stone holder 8 is provided with a recessed part 20, the top surface of the connecting block 11 located in the recessed part 20 is provided with a support rod 19, the lead screw 17 penetrates the connecting part 10 along the sliding direction of the oil stone holder 8, one end of the lead screw 17 is connected with the output end of the stepping motor 16, the other end penetrates into the recessed part 20 and is rotationally connected with the support rod 19, the connecting part 10 is provided with a threaded sleeve 18, the threaded sleeve 18 is in threaded transmission connection with the lead screw 17. The stepping motor 16 drives the lead screw 17 to rotate, and drives the oil stone holder 8 to move along the first sliding groove 21 through the threaded sleeve 18, so as to adjust the position of the oil stone holder 8, the adjustment operation is convenient and the accuracy is high.

[0025] In one embodiment, the mounting portion 9 of the oil stone rack 8 is provided with a clamping mechanism for limiting the oil stone 12 and facilitating replacement of the oil stone 12. The clamping mechanism includes a pressing plate 23 and a screw rod 24. The pressing plate 23 is located in the hole 13 and parallel to one side wall of the hole 13. The two side edges of the pressing plate 23 are respectively in sliding connection with the corresponding side walls of the hole 13. Specifically, the two side edges of the pressing plate 23 are respectively provided with second sliding blocks. The inner walls of the corresponding holes 13 are provided with second sliding grooves 31. The second sliding blocks are in sliding connection with the second sliding grooves 31. The sliding direction of the pressing plate 23 is perpendicular to the penetrating direction of the oil stone 12. The side wall of the hole 13 opposite to the pressing plate 23 is provided with a second threaded hole 33. The screw rod 24 is in threaded connection with the second threaded hole 33. The end of the screw rod 24 is in rotational connection with the pressing plate 23. The other end of the screw rod 24 is located outside the hole 13 and is provided with a hand holding portion 25. The hand holding portion 25 is used to drive the screw rod 24 to rotate. One side of the hand holding portion 25 facing the hole 13 is provided with an embedded sliding channel 26. The sliding channel 26 is provided with a positioning rod 28 in sliding connection therewith. The mounting portion 9 is provided with positioning holes 30 on the side wall outside the hole 13. The positioning holes 30 are uniformly arranged around the screw rod 24. The end of the positioning rod 28 and the inner end surface of the sliding channel 26 are provided with a spring 27. Under the action of the spring 27, the end of the positioning rod 28 outside the hand holding portion 25 penetrates into the corresponding positioning hole 30 to limit the rotation of the screw rod 24, so that the pressing plate 23 keeps abutting against the oil stone 12. The rod body of the positioning rod 28 outside the hand holding portion 25 is provided with a push rod 29. The push rod 29 is in perpendicular connection with the positioning rod 28. The push rod 29 is used to drive the positioning rod 28 to separate from the positioning hole 30, so as to facilitate the staff to control the positioning rod 28. The rotation of the screw rod 24 makes the pressing plate 23 separate from the oil stone 12, so as to replace the oil stone 12.

[0026] When the conical roller bearing inner ring rib superfinishing device is used, the cylinder 6 pushes the cylinder joint 7 to press the oil stone 12. The end of the oil stone 12 superfinishes the conical roller bearing inner ring rib. After completion, the cylinder 6 is retracted. The conical roller bearing inner ring rib superfinishing device jumps out of the pressing wheel frame, which does not affect the feeding of the bearing inner ring.

[0027] When it is necessary to replace the conical roller bearings of different specifications and sizes for processing, the screw rod 17 is driven to rotate by the stepping motor 16. The threaded sleeve 18 drives the oil stone rack 8 to slide along the first sliding groove 21 to adjust the position of the oil stone rack 8, so as to adapt to the processing of conical roller bearings of different specifications and sizes.

[0028] When it is necessary to replace the oil stone 12, the positioning rod 28 is separated from the positioning hole 30 by the push rod 29. The screw rod 24 is rotated by the hand holding portion 25, so as to drive the pressing plate 23 to separate from the oil stone 12. After the oil stone 12 is replaced, the screw rod 24 is rotated again, so that the pressing plate 23 abuts against the oil stone 12. Under the action of the spring 27, the end of the positioning rod 28 penetrates into the corresponding positioning hole 30 to limit the screw rod 24.

[0029] The application drills and taps appropriate positions of the original super-precision machine bed pressure roller frame Figure 1 The 3 cross bars in the device are fixed on the original lower pressure roller support of the super-precision machine through inner hexagonal screws, and a gas circuit and a control circuit are added to control the gas cylinder through an electromagnetic reversing gas valve Figure 1 Figure 2 The device is fixed to connect the gas circuit, and while the bearing raceway is super-precision processed, the gas cylinder pushes the gas cylinder joint to press the oil stone of the oil stone frame against the position of the workpiece to perform super-precision grinding. After the super-precision grinding is completed, the gas cylinder is retracted, the device 1 jumps out of the pressure roller frame, and does not affect the feeding of the bearing inner ring. Meanwhile, the next workpiece enters the circulation state.

[0030] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A device for ultra-finishing the inner ring rib of a tapered roller bearing, characterized in that: The utility model provides a super fine machine oil stone rack, including support (1), cylinder (6) and oil stone rack (8), the support (1) includes fixed plate (2) and L type support plate (3), the fixed plate (2) is used to connect the lower pressure wheel support of super fine machine, the first side plate (4) of L type support plate (3) is connected with fixed plate (2), the cylinder (6) is set up in the second side plate (5) of L type support plate (3), the cylinder (6) output end is equipped with cylinder joint (7), the fixed plate (2) top is equipped with connecting block (11), the oil stone rack (8) includes installation part (9) and connecting part (10), the connecting part (10) is set up in connecting block (11), the installation part (9) is equipped with the hole (13) for passing oil stone (12), the hole (13) end surface is opposite with cylinder joint (7).

2. The apparatus of claim 1 wherein, The oil stone rack (8) is equipped with adjusting mechanism (14), the adjusting mechanism (14) is used for adjusting the position of oil stone rack (8), adjusting mechanism (14) includes fastening bolt (15), the connecting block (11) top is equipped with first threaded hole, the connecting part (10) is equipped with the connecting groove (32) that goes up and down through along the telescopic direction of cylinder (6), the fastening bolt (15) passes through connecting groove (32) and is threadedly connected with first threaded hole, and the fastening bolt (15) is used for fixing the position of oil stone rack (8).

3. The apparatus of claim 1 wherein, The oil stone rack (8) is equipped with adjusting mechanism (14), the adjusting mechanism (14) is used for adjusting the position of oil stone rack (8), the oil stone rack (8) is slidably connected with connecting block (11) along the telescopic direction of cylinder (6), adjusting mechanism (14) includes the step motor (16) of setting up in connecting block (11), and the screw rod (17) of passing through in connecting part (10), the connecting part (10) is equipped with threaded sleeve (18), and the threaded sleeve (18) is threadedly connected with screw rod (17).

4. The apparatus of claim 1 wherein, The installation part (9) is equipped with clamping mechanism, the clamping mechanism includes pressing plate (23) and screw rod (24), the pressing plate (23) is set up in the hole (13) and is parallel with the side wall of one side of hole (13), and the both sides edge of pressing plate (23) is slidably connected with the inner wall of hole (13), and the pressing plate (23) is used for abutting oil stone (12), the side wall of hole (13) and pressing plate (23) is equipped with second threaded hole (33), and the screw rod (24) is threadedly connected with second threaded hole (33), and one end of screw rod (24) is rotatably connected with pressing plate (23), and the other end is equipped with handheld part (25).

5. The apparatus of claim 4 wherein, The side of handheld part (25) towards hole (13) is equipped with slide (26), the slide (26) is slidably connected with positioning rod (28), the spring (27) is arranged between the end of positioning rod (28) and the inner end surface of slide (26), the installation part (9) is correspondingly equipped with positioning hole (30), a plurality of positioning holes (30) are evenly arranged around screw rod (24), and the end of positioning rod (28) penetrates into the positioning hole (30) opposite to it to limit screw rod (24).

6. The apparatus of claim 5 wherein, The positioning rod (28) is provided with a push rod (29) which is vertically connected with the rod body outside the hand-held part (25), and the push rod (29) is used to drive the positioning rod (28) to separate from the positioning hole (30).

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