Double-oilstone swing head for bearing outer ring channel superfinishing process

Abstract

The invention provides a double oilstone swing head for a bearing outer ring channel superfinishing process, which comprises a base, two oilstone frames, an adjusting assembly and a positioning assembly are arranged on the base, the adjusting assembly comprises a rotating seat, a driving part and a transmission part, the two oilstone frames are circumferentially arranged on one side of the rotating seat at intervals, and the two oilstone frames are arranged on the other side of the rotating seat at intervals. One end of the transmission part is connected with the driving part, the other end of the transmission part is in transmission connection with the rotating seat, the transmission part can drive the rotating seat to rotate to switch the positions of the two oilstone frames under the action of the driving part, and the positioning assembly is used for being in positioning fit with the switched oilstone frames. Aiming at the defects in the prior art, the invention provides the double-oilstone swinging head for the bearing outer ring channel superfinishing process, and the double-oilstone swinging head can improve the efficiency and effectively reduce the cost.

Description

Technical Field

[0001] This invention relates to the field of bearing processing equipment, and in particular to a double oilstone swing head for ultra-precision processing of bearing outer ring grooves. Background Technology

[0002] In the manufacturing of deep groove ball bearings, the ultra-precision machining of the outer ring raceway is a key process that determines the bearing's accuracy, noise level, and service life. With the increasing demands for bearing precision in the industrial sector, especially in high-end equipment manufacturing, customers are placing more stringent requirements on the surface roughness (Ra) and total profile deviation (Pt) of the bearing's outer ring raceway. Existing technologies, relying solely on single-stage, single-stone machining, often fall short of these requirements, forcing manufacturers to adopt a step-by-step machining approach: first, a basic abrasive stone is used on one machine to complete the initial ultra-precision machining; after the workpiece is machined, it must be manually unloaded from this machine and transported to another machine equipped with a higher-precision abrasive stone for secondary finishing. This machining mode has particularly prominent limitations in mass production scenarios: on the one hand, the purchase, installation, and daily maintenance of the two machines require significant investment, significantly increasing production costs; on the other hand, the multiple transfers of the workpiece between the two machines not only extend the production cycle and reduce output efficiency per unit time, but may also affect the stability of machining accuracy due to collisions and positioning deviations during transport. Therefore, further development of existing technologies is necessary. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a double oilstone oscillating head for ultra-precision machining of bearing outer ring raceways, which can improve efficiency and effectively reduce costs.

[0004] To achieve the above objectives, the present invention provides a double oilstone swing head for ultra-precision machining of bearing outer ring raceways, comprising a base, on which two oilstone frames, an adjustment component, and a positioning component are mounted. The adjustment component includes a rotating seat, a driving component, and a transmission component. The two oilstone frames are circumferentially spaced on one side of the rotating seat. One end of the transmission component is connected to the driving component, and the other end of the transmission component is connected to the rotating seat. The transmission component can drive the rotating seat to rotate and switch the positions of the two oilstone frames under the action of the driving component. The positioning component is used to form a positioning engagement with the switched oilstone frames.

[0005] The advantages of the above technical solution are: by setting a rotating seat with two oilstone frames on the base, and cooperating with the adjustment component including the drive component and the transmission component, the two oilstone frames can be switched on the same equipment. Combined with the positioning component to position the switched oilstone frames, the stability during use is guaranteed. Not only can the ultra-high precision machining requirements of the bearing outer ring groove be met by using different combinations of oilstones, but the transportation and transfer between multiple equipment is also eliminated, a lot of equipment space is saved, and production efficiency is greatly improved.

[0006] The present invention can be further configured such that: a semi-circular toothed portion is provided on the other side of the rotating seat, and the transmission component is rack-shaped and meshes with the toothed portion.

[0007] By further configuring the mechanism, a semi-circular toothed section is provided on the other side of the rotating seat, and the transmission component is designed as a rack and pinion to mesh with the toothed section. This allows the rotating seat to rotate smoothly through the precise transmission of the gears and racks when the driving component moves the transmission component, thereby enabling the switching of the two oilstone frames. The mechanical meshing transmission method provides strong stability and rapid response.

[0008] The present invention can be further configured such that: the rotating seat is provided with a rotating shaft and two bearings, the two bearings are respectively located at the upper and lower ends of the rotating seat, the rotating shaft passes through the rotating seat, and the upper and lower ends of the rotating shaft are respectively fixed to the inner holes of the two bearings, and the outer rings of the two bearings are positioned and fitted with the base.

[0009] By further configuring bearings at both ends of the rotating seat, fixing the rotating shaft passing through the rotating seat to the bearing inner hole, and positioning the bearing outer ring to the base, a stable rotating support structure is formed. This ensures that the rotation center of the rotating seat is accurately fixed, the position of the oilstone frame is correct, and the stability of the product is guaranteed.

[0010] The present invention can be further configured such that: the base is provided with an elongated groove for the transmission component to slide therein, the driving component is fixed at one end of the elongated groove, and a mounting clamp is provided at the other end of the elongated groove, the transmission component extends into the mounting clamp and engages with the rotating seat.

[0011] By further designing the base, a long groove is provided for the transmission component to slide, and the long groove also provides protection for the transmission component. The drive component is fixed to one end of the long groove, and an installation clamp is provided at the other end of the long groove. This provides installation space for the meshing part of the transmission component and the rotating seat, and also provides protection and limit at the connection between the two, ensuring the stability of the product.

[0012] The present invention can be further configured such that: the positioning component includes a lifting pressure rod, the oilstone frame is provided with a limiting groove, the end of the pressure rod is provided with a locking head, and the locking head can extend into the limiting groove and abut against the inner wall of the limiting groove.

[0013] By further configuring the lifting pressure rod in conjunction with the upper limit groove of the oilstone frame, the two oilstone frames can be switched and positioned by adjusting the lifting pressure rod. When the oilstone frame is switched to the working position with the rotating seat, the pressure rod descends, causing the end clamp to extend into the limit groove and abut against the inner wall of the groove, achieving a limit fixation and ensuring stability. After the pressure rod rises, the two oilstone frames can be freely switched through the transmission component.

[0014] The invention can be further configured such that: the pressure rod includes an inclined section extending downwards, and the clamp head extends horizontally.

[0015] By further designing the lever, the inclined section extends downwards to make way, and then the locking head extends horizontally to fully enter the limiting groove, ensuring the limiting effect through sufficient contact area.

[0016] The present invention can be further configured such that: the positioning component includes a guide post, the guide post is positioned at the middle position of the pressure rod, the guide post and the pressure rod are slidably inserted into each other, and the guide post extends in the direction of lifting and lowering of the pressure rod.

[0017] By further configuring the guide post in the middle of the pressure rod, and by slidably inserting the guide post into the pressure rod and extending it along the lifting direction, the lifting movement of the pressure rod is guided, so that the pressure rod will not swing or slip during the lifting process, thereby ensuring that the clamp can be accurately inserted into the limiting groove.

[0018] The present invention can be further configured to include a limiting frame, wherein the limiting frame is disposed on both sides of the pressure rod and forms a sliding abutment engagement with the pressure rod, and the limiting frame is disposed near the guide post.

[0019] By further configuring the limit brackets on both sides of the pressure rod and near the guide post, and making them slide against the pressure rod, the guidance of the pressure rod is further enhanced. Furthermore, the brackets are positioned near the guide post, allowing the guide post to slide and insert into the middle of the pressure rod for guidance, while the limit brackets form lateral limits from both sides of the pressure rod.

[0020] The present invention can be further configured such that: the positioning component includes a guide block, an arc-shaped notch is provided on the other side of the rotating seat, the guide block is provided on the other side of the rotating seat, the guide block is provided with a protrusion, and the protrusion can slide along the bottom of the arc-shaped notch and abut against the two end faces of the arc-shaped notch.

[0021] By further designing the rotating seat, an arc-shaped notch is provided on the other side, along with corresponding guide blocks and their protrusions, guiding and limiting the rotation of the rotating seat. When the rotating seat drives the oilstone frame to switch positions, the protrusions on the guide blocks slide along the bottom of the arc-shaped notch to provide guidance. When the rotating seat is switched into position, the protrusions abut against the two end faces of the arc-shaped notch to form a limit, ensuring the stability of the product. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 This is a front view of an embodiment of the present invention; Figure 3 This is an embodiment of the present invention. Figure 2 Sectional view at point AA; Figure 4 This is an embodiment of the present invention. Figure 2 Sectional view at point BB; Figure 5 This is a schematic diagram of the mating structure of the rotating seat, transmission component, and guide block in an embodiment of the present invention; Figure 6 This is a schematic diagram of the cooperative structure of the rotating seat, oilstone frame, pressure rod, guide column and limiting frame in an embodiment of the present invention; The components include: base 1; long groove 11; mounting clamp 12; oilstone frame 2; limiting groove 21; adjusting component 3; rotating seat 31; toothed part 311; rotating shaft 312; bearing 313; arc-shaped notch 314; driving component 32; transmission component 33; positioning component 4; pressure rod 41; clamp 411; inclined section 412; guide column 42; limiting frame 43; guide block 44; and protrusion 441. Detailed Implementation

[0023] An embodiment of the present invention, a double oilstone oscillating head for ultra-precision machining of bearing outer ring raceways, is provided below. Figure 1-6 As shown: It includes a base 1, on which two oilstone racks 2, an adjustment component 3, and a positioning component 4 are provided. The adjustment component 3 includes a rotating seat 31, a driving component 32, and a transmission component 33. The two oilstone racks 2 are circumferentially spaced on one side of the rotating seat 31. One end of the transmission component 33 is connected to the driving component 32. The driving component 32 can be driven by pneumatic or hydraulic pressure, or by a motor. The other end of the transmission component 33 is connected to the rotating seat 31 for transmission. The transmission component 33 can drive the rotating seat 31 to rotate and switch the positions of the two oilstone racks 2 under the action of the driving component 32. The positioning component 4 is used to form a positioning engagement with the switched oilstone racks 2.

[0024] A semi-circular toothed portion 311 is provided on the other side of the rotating seat 31, and the transmission component 33 is rack-shaped and meshes with the toothed portion 311.

[0025] The rotating seat 31 is provided with a rotating shaft 312 and two bearings 313. The two bearings 313 are respectively located at the upper and lower ends of the rotating seat 31. The rotating shaft 312 passes through the rotating seat 31, and the upper and lower ends of the rotating shaft 312 are respectively fixed to the inner holes of the two bearings 313. The outer rings of the two bearings 313 are positioned and fitted with the base 1.

[0026] The base 1 is provided with a long groove 11 for the transmission component 33 to slide therein. The driving component 32 is fixed at one end of the long groove 11. The other end of the long groove 11 is provided with a mounting clamp 12. The transmission component 33 extends into the mounting clamp 12 and engages with the rotating seat 31.

[0027] The positioning component 4 includes a lifting pressure rod 41, and the oilstone frame 2 is provided with a limiting groove 21. The end of the pressure rod 41 is provided with a locking head 411, which can extend into the limiting groove 21 and abut against the inner wall of the limiting groove 21. In this embodiment, the oilstone frame 2 is arranged symmetrically at the top and bottom for easy installation.

[0028] The pressure rod 41 includes an inclined section 412 that extends downwards, and the clamping head 411 extends horizontally. In this embodiment, the inclined section 412 is also gradually reduced in size downwards to ensure its own strength while smoothly transitioning to the clamping head 411.

[0029] The positioning component 4 includes a guide post 42 and a limiting frame 43. The guide post 42 is positioned at the middle of the pressure rod 41 and is slidably inserted into the pressure rod 41. The guide post 42 extends in the lifting direction of the pressure rod 41. The limiting frame 43 is positioned on both sides of the pressure rod 41 and forms a slidable abutment with the pressure rod 41. The limiting frame 43 is positioned near the guide post 42. In this embodiment, both the guide post 42 and the limiting frame 43 are mounted on a pad, and the pad is detachably connected to the base 1.

[0030] The positioning component 4 includes a guide block 44. An arc-shaped notch 314 is provided on the other side of the rotating seat 31. The guide block 44 is provided on the other side of the rotating seat 31. A protrusion 441 is provided on the guide block 44. The protrusion 441 can slide along the bottom of the arc-shaped notch 314 and abut against the two end faces of the arc-shaped notch 314.

[0031] The above examples are merely one preferred embodiment of the present invention. Ordinary variations and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included within the protection scope of the present invention.

Claims

1. A double-stone pendulum head for bearing outer ring groove superfinishing process, characterized in that: The base is provided with two oil stone racks, an adjusting assembly and a positioning assembly, the adjusting assembly comprises a rotating seat, a driving member and a transmission member, the two oil stone racks are circumferentially and spacedly arranged at one side of the rotating seat, one end of the transmission member is connected with the driving member, and the other end of the transmission member is in transmission connection with the rotating seat, the transmission member can drive the rotating seat to rotate and switch the positions of the two oil stone racks under the action of the driving member, and the positioning assembly is used for positioning cooperation with the switched oil stone rack.

2. Double-stone pendulum head for bearing outer ring groove superfinishing process according to claim 1, characterized in that: The other side of the rotating seat is provided with a semicircular tooth portion, and the transmission member is in the form of a rack and is in meshing with the tooth portion.

3. Double-stone pendulum head for bearing outer ring groove superfinishing process according to claim 2, characterized in that: The rotating seat is provided with a rotating shaft and two bearings, the two bearings are arranged at the upper and lower ends of the rotating seat respectively, the rotating shaft is arranged in the rotating seat, and the upper and lower ends of the rotating shaft are fixed with the inner holes of the two bearings respectively, and the outer rings of the two bearings are in positioning cooperation with the base.

4. Double-stone pendulum head for bearing outer ring groove superfinishing process according to claim 2 or 3, characterized in that: The base is provided with a long groove for slidingly arranging the transmission member therein, the driving member is fixed at one end of the long groove, the other end of the long groove is provided with a mounting clamping opening, the transmission member extends into the mounting clamping opening and is in meshing with the rotating seat.

5. Double oil-stone pendulum head for bearing outer ring groove superfinishing process according to claim 1 or 2 or 3, characterized in that: The positioning assembly comprises a lifting press rod, the oil stone rack is provided with a limiting groove, the end of the press rod is provided with a clamping head, the clamping head can extend into the limiting groove and abut against the inner wall of the limiting groove.

6. Double-stone pendulum head for bearing outer raceway superfinishing process according to claim 5, characterized in that: The press rod comprises an inclined section extending downwardly and obliquely, and the clamping head extends horizontally.

7. Double-stone pendulum head for bearing outer ring groove superfinishing process according to claim 6, characterized in that: The positioning assembly comprises a guide column, the guide column is arranged at the middle position of the press rod in a sliding and plug-in manner, and the guide column extends in the lifting direction of the press rod.

8. The double-stone pendulum head for bearing outer raceway superfinishing process according to claim 6, characterized in that: The positioning assembly comprises a limiting frame, the limiting frame is arranged at the two sides of the press rod and is in sliding abutment with the press rod, and the limiting frame is arranged close to the guide column.

9. The double-stone pendulum head for bearing outer raceway superfinishing process according to claim 5, characterized in that: The positioning assembly comprises a guide block, the other side of the rotating seat is provided with an arc-shaped notch, the guide block is arranged at the other side of the rotating seat, the guide block is provided with a protruding portion, the protruding portion can slide along the bottom of the arc-shaped notch and abut against the end faces of the two sides of the arc-shaped notch.

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