A convex cylindrical tapered roller outer diameter superfinishing machine tool

Abstract

The utility model discloses a convex degree cylindrical conical roller outer diameter superfinishing machine tool belongs to bearing finish machining technical field, the machine tool of the utility model includes the lathe body, is provided with the guide roller mechanism on the lathe body, and the guide roller mechanism one side is equipped with oil stone subassembly, and the oil stone subassembly includes the first base of fixedly arranged on the lathe body, and the first base one side is equipped with the feed worktable that can displace relative thereto, and the feed worktable one side is connected with the mounting base plate that can displace relative thereto, and the mounting base plate bottom detachably connected with the oil stone clamp, and the oil stone clamp has at least two installation oil stone's installation groove in, and the installation base plate one side is equipped with the pressure cylinder of corresponding cooperation arrangement with oil stone. The utility model solves the machining precision stability problem of lacking of the existing through type convex degree cylindrical conical roller outer diameter superfinishing equipment.

Description

Technical Field

[0001] This utility model relates to the field of bearing precision machining technology, specifically to an ultra-precision machine tool for the outer diameter of cylindrical and tapered rollers with convexity. Background Technology

[0002] In the bearing manufacturing industry, convex cylindrical and tapered rollers are the core load-bearing components of rolling bearings. The machining accuracy of their outer diameter surface directly determines the bearing's rotational stability, load-bearing capacity, and service life. With the continuous improvement of bearing performance requirements in high-end equipment, the market demand for precision, efficiency, and compatibility in ultra-precision machining of convex cylindrical and tapered roller outer diameters is becoming increasingly stringent. As a key processing equipment, the technical performance of ultra-precision roller outer diameter machining tools has become one of the important factors restricting the high-quality development of the bearing industry. Currently, the mainstream ultra-precision roller outer diameter machining equipment in the industry is mainly divided into two categories: through-type and non-through-type. Among them, through-type equipment, due to its continuous processing capability and adaptability to batch production needs, has become the main choice for mid-to-high-end roller machining. However, existing ultra-precision roller outer diameter equipment generally has technical defects, making it difficult to meet the diversified and high-precision needs in actual production. For example, existing equipment has the problem of insufficient processing accuracy stability, which is difficult to solve in actual production. The honing stone components of existing equipment are mostly adjusted manually or by simple mechanical structures, lacking precise electric lifting and displacement control mechanisms. The fit between the honing stone and the outer diameter of the roller is difficult to control precisely, and the compensation accuracy after the honing stone wears during processing is low, which easily leads to poor consistency of the outer diameter of the roller and excessive deviation of the convexity curve.

[0003] To address this issue, existing technologies exist, such as AU2023229469A1, which discloses a device and method for ultra-finishing the circumferential surface of rollers. This method solves the problem of low processing efficiency caused by poor coordination between the loading / unloading mechanism and the ultra-finishing mechanism in current ultra-finishing roller processing. This invention uses a stepped pallet to transport the rollers, connecting the external loading mechanism to the ultra-finishing station. After adjusting the positions of the rollers on the second loading platform and the first loading platform, the rollers to be processed are precisely fed into the ultra-finishing station, while the processed rollers are simultaneously lifted from the ultra-finishing station and moved to the receiving plate. This method improves the loading speed and accuracy of the rollers, thereby increasing the efficiency of ultra-finishing processing. However, existing equipment still has room for improvement in terms of high precision and high efficiency during processing. Summary of the Invention

[0004] The purpose of this invention is to provide a super-precision machine tool for the outer diameter of convex cylindrical and tapered rollers, which solves the problem of insufficient machining accuracy and stability in existing through-type super-precision equipment for the outer diameter of convex cylindrical and tapered rollers.

[0005] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution: a super-precision machine tool for the outer diameter of convex cylindrical and tapered rollers, including a bed, a guide roller mechanism on the bed, and an oilstone assembly on one side of the guide roller mechanism. The oilstone assembly includes a first base fixed to the bed, a feed table on one side of the first base that can be displaced relative to it, a mounting base connected to one side of the feed table that can be displaced relative to it, an oilstone clamp detachably connected to the bottom of the mounting base, the oilstone clamp having at least two mounting grooves for mounting oilstones, and a pressure cylinder corresponding to and cooperating with the oilstones on one side of the mounting base. This utility model uses the bed as a support base to support the guide roller mechanism and the oilstone assembly. Furthermore, the first base in the oilstone assembly is fixed to the feed table, and its relative displacement can flexibly adjust the initial distance between the oilstone and the roller, achieving preliminary precise alignment control. The displacement of the mounting base relative to the feed table allows for further fine-tuning of the honing stone position, improving the fit between the honing stone and the outer diameter of the roller. The honing stone clamp is detachable and contains at least two mounting slots, facilitating quick and easy honing stone replacement and supporting simultaneous processing of multiple honing stones, thus improving processing efficiency. The pressurizing cylinder applies stable pressure to the honing stone, ensuring continuous and reliable contact between the honing stone and the roller, effectively reducing dimensional deviations in processing.

[0006] According to one embodiment of this utility model, a reducer is provided at the upper end of the first base, and a lead screw is provided at the output end of the reducer. The lead screw is placed inside the first base and is set in a vertical position. A lead screw nut seat is provided on the lead screw, and the lead screw nut seat is connected to the side of the feed table. The first base of this utility model provides mounting support for the reducer and the lead screw. The reducer is used to regulate the rotation speed of the lead screw at the output end, preventing the feed table from overshooting due to excessive lead screw speed, or affecting processing efficiency due to excessively slow speed, thus achieving controllable feed speed. The vertically set lead screw and lead screw nut seat can convert the rotational power of the reducer into the vertical linear motion of the lead screw nut seat. In addition, this utility model can drive the feed table to move vertically and stably along the first base through the rigid connection between the lead screw nut seat and the side of the feed table, ensuring accurate positioning when the feed table drives the related components of the honing stone to adjust the height.

[0007] According to one embodiment of this utility model, a thrust ball bearing, a deep groove ball bearing, and a locking nut are provided at the connection between the lead screw and the first base. The thrust ball bearing at the connection between the lead screw and the first base can effectively withstand the axial force generated when the lead screw is vertically transmitted, and avoid the lead screw from being deviated due to axial force affecting the transmission accuracy; the deep groove ball bearing can simultaneously restrain the radial wobble of the lead screw, ensure the coaxiality of the lead screw when rotating, and reduce the displacement error caused by radial clearance.

[0008] According to one embodiment of this utility model, a reciprocating mechanism connected to a mounting base is provided within a feed table. The reciprocating mechanism includes a second base installed within the feed table, a mounting guide rail connected to the mounting base, and a forward / reverse cylinder. The second base and the feed table are detachably connected. The feed table provides a mounting carrier. The detachable connection of the second base to the feed table facilitates the disassembly, maintenance, and component replacement of the reciprocating mechanism. The mounting guide rail within the second base connects to the mounting base, guiding the mounting base to move smoothly and linearly along the guide rail, reducing lateral offset errors. The forward / reverse cylinder provides controllable driving force to control the forward and backward stroke of the mounting base.

[0009] According to one embodiment of this utility model, a reciprocating guide rod and an oscillating spring are provided on the side of the second base, and a cylinder mounting seat is provided on the side of the feed table. The cylinder mounting seat contains an oscillating cylinder that cooperates with the oscillating spring. The reciprocating guide rod on the side of the second base provides guidance for the reciprocating motion of the mounting plate and constrains the motion trajectory to prevent deviation. The oscillating spring can cooperate with the oscillating cylinder built into the cylinder mounting seat. The oscillating cylinder can output periodic driving force, and the oscillating spring can buffer the impact of the driving force and assist in reset, reducing the feeling of motion jerking and making the reciprocating motion smoother. The cylinder mounting seat provides a stable mounting support for the oscillating cylinder and prevents it from shifting during operation.

[0010] A three-phase motor is installed on the first base. The three-phase motor is connected to the reciprocating guide rod through a transmission component to provide reciprocating power.

[0011] According to one embodiment of this utility model, a mounting slide rail is provided on the side of the mounting base plate, and the side of the mounting slide rail has an outward protrusion structure. A groove is provided on the side of the oilstone clamp, and the groove corresponds to the mounting slide rail and the outward protrusion structure on its side. The mounting slide rail with outward protrusion structure on the side of the mounting base plate is adapted to the groove on the side of the oilstone clamp to realize the quick positioning and installation of the oilstone clamp and avoid lateral displacement during installation. The outward protrusion structure can also limit the loosening or movement of the oilstone clamp along the slide rail direction during processing, ensuring the stability of the connection between the oilstone clamp and the mounting base plate. At the same time, the matching structure of the slide rail and the groove simplifies the disassembly and assembly process of the oilstone clamp.

[0012] According to one embodiment of this utility model, a tensioning plate is provided between the oilstone clamp and the mounting base plate. One side of the tensioning plate has a first elastic strip that contacts the side of the oilstone clamp, and the other side has a second elastic strip that contacts the mounting base plate. The tensioning plate between the oilstone clamp and the mounting base plate fills the assembly gap between them, preventing the oilstone clamp from loosening or shifting during processing. The first elastic strip on one side of the tensioning plate is in close contact with the side of the oilstone clamp, and the second elastic strip on the other side is in close contact with the side of the mounting base plate. The elastic strips can buffer the impact of processing vibrations on the oilstone clamp through deformation, and can also prevent component wear caused by rigid contact.

[0013] According to one embodiment of this utility model, a ball spring plunger is detachably connected to the side of the tensioning plate. The ball spring plunger has a blind hole at one end of a threaded post, within which a ball is placed. A spring is positioned between the ball and the bottom of the blind hole, allowing a portion of the ball to protrude from one end of the threaded post. This detachable ball spring plunger on the side of the tensioning plate facilitates disassembly, maintenance, and replacement of the plunger, while its threaded post structure ensures a stable connection with the tensioning plate. The spring within the blind hole pushes the ball to protrude, allowing it to elastically engage with the whetstone clamp or mounting base, further eliminating assembly gaps between the whetstone clamp and the mounting base and preventing slight displacement of the whetstone clamp due to vibration during processing.

[0014] According to one embodiment of this utility model, a pressure adjuster is provided above the first base, corresponding to and connected to the pressurizing cylinder. The pressure adjuster is connected to the pressurizing cylinder and can adjust the pressure applied by the pressurizing cylinder to the whetstone according to the actual requirements of ultra-precision machining of the outer diameter of the convex cylindrical and tapered rollers.

[0015] According to one embodiment of the present invention, a spray pipe is provided above the guide roller mechanism. The spray pipe provided above the guide roller mechanism can be aimed at the contact area between the roller and the guide roller and the oilstone processing part, and can continuously spray cooling and lubricating fluid during processing.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model realizes the adjustment and stable transmission of the position of the oilstone, reduces the displacement error and vibration influence during the processing, improves the convenience of oilstone replacement and equipment maintenance, and ensures the accuracy and efficiency of ultra-precision machining of the outer diameter of the roller. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of an ultra-precision machine tool for the outer diameter of a cylindrical and tapered roller with convexity according to the present invention; Figure 2 This is a schematic diagram of the connection scheme between the first base and the feed table of this utility model; Figure 3 This is a schematic diagram of the internal connection scheme between the reducer and the first base of this utility model; Figure 4 This is a schematic diagram of the second base design of this utility model; Figure 5 This is a schematic diagram of the connection scheme between the mounting base plate and the whetstone clamp of this utility model; Figure 6 This is a schematic diagram of the oilstone clamp structure of this utility model; Figure 7 This is a cross-sectional view of the oilstone clamp of this utility model; Figure 8 This is a first-view schematic diagram of the tensioning insert plate of this utility model; Figure 9 This is a second-view schematic diagram of the tensioning insert plate of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 10. Bed; 11. Box partition; 12. Guide rail; 20. Guide roller mechanism; 21. Guide roller; 30. Spray pipe; 40. Gearbox; 50. Feeding mechanism; 60. Oilstone assembly; 61. Pressure regulator; 62. Oscillating cylinder; 63. First base; 64. Three-phase motor; 65. Reducer; 66. Feed table; 67. Cylinder mounting seat; 68. Lead screw; 69. Lead screw nut seat; 610. Second base; 611. Mounting guide rail; 612. Forward / reverse cylinder; 613. Reciprocating guide rod; 614. Oscillating spring; 615. Mounting base plate; 616. Mounting slide rail; 617. Pressurizing cylinder; 618. Oilstone clamp; 619. Tensioning plate; 620. First elastic bar; 621. Ball spring plunger; 622. Second elastic bar. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] The concepts involved in this application will first be described with reference to the accompanying drawings. It should be noted that the following descriptions of various concepts are only for the purpose of making the content of this application easier to understand and do not constitute a limitation on the scope of protection of this application; furthermore, the embodiments and features in the embodiments of this application can be combined with each other unless otherwise specified. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Example 1: As shown in the attached figure Figure 1-9As shown, a machine tool for ultra-precision machining of the outer diameter of a convex cylindrical and tapered roller includes a bed 10, a guide roller mechanism 20 mounted on the bed 10, and an oilstone assembly 60 disposed on one side of the guide roller mechanism 20. The oilstone assembly 60 includes a first base 63, which is fixedly mounted on the bed 10. A feed table 66 is provided on one side of the first base 63, and the feed table 66 can be displaced relative to the first base 63. A mounting plate 615 is connected to one side of the feed table 66, and the mounting plate 615 can be displaced relative to the feed table 66. An oilstone clamp 618 is detachably connected to the bottom of the mounting plate 615. The oilstone clamp 618 has at least two mounting grooves inside, which are used to mount oilstones. A pressure cylinder 617 is provided on one side of the mounting plate 615, and the pressure cylinder 617 is configured to cooperate with the oilstone. This invention utilizes a machine tool with a bed 10 as a support base to support the guide roller mechanism 20 and the oilstone assembly 60. Furthermore, the first base 63 in the oilstone assembly 60 is fixed to the feed table 66, and its relative displacement allows for flexible adjustment of the initial distance between the oilstone and the roller, achieving precise control of initial alignment. The displacement of the mounting base 615 relative to the feed table 66 allows for further fine-tuning of the oilstone position, improving the fit between the oilstone and the outer diameter of the roller. The oilstone clamp 618 is detachable and contains at least two mounting slots, facilitating quick oilstone replacement and supporting simultaneous processing of multiple oilstones, thus improving processing efficiency. The pressure cylinder 617 applies stable pressure to the oilstone, ensuring continuous and reliable contact between the oilstone and the roller, effectively reducing dimensional deviations during processing.

[0023] In this ultra-precision machine tool for outer diameter of cylindrical and tapered rollers with convexity, a reducer 65 is mounted on the upper end of the first base 63, and the output end of the reducer 65 is connected to a lead screw 68. The lead screw 68 is located inside the first base 63 and is arranged vertically. A lead screw nut seat 69 is also installed on the lead screw 68, and the lead screw nut seat 69 is connected to the side of the feed table 66. Through this structural cooperation, power transmission and displacement adjustment of the feed table 66 can be realized. The first base 63 of this invention provides mounting support for the reducer 65 and the lead screw 68. The reducer 65 is used to regulate the rotation speed of the output lead screw 68, preventing the lead screw 68 from rotating too fast and causing the feed table 66 to overshoot, or rotating too slow and affecting processing efficiency, thus achieving controllable feed speed. The vertically arranged lead screw 68 and lead screw nut seat 69 can convert the rotational power of the reducer 65 into the vertical linear motion of the lead screw nut seat 69. In addition, this invention can drive the feed table 66 to move stably vertically along the first base 63 through the rigid connection between the lead screw nut seat 69 and the side of the feed table 66, ensuring that the feed table 66 can accurately adjust the height of the related components of the honing stone.

[0024] The connection between the lead screw 68 and the first base 63 is equipped with a thrust ball bearing, a deep groove ball bearing, and a lock nut. The thrust ball bearing at the connection between the lead screw 68 and the first base 63 can effectively withstand the axial force generated when the lead screw 68 is vertically driven, and prevent the lead screw 68 from being deviated due to axial force, thus affecting the transmission accuracy. The deep groove ball bearing can simultaneously restrain the radial wobble of the lead screw 68, ensuring the coaxiality of the lead screw 68 when rotating, and reducing the displacement error caused by radial clearance.

[0025] The feed table 66 contains a reciprocating mechanism connected to the mounting base 615. The reciprocating mechanism includes a second base 610 installed within the feed table 66. The second base 610 contains a mounting guide rail 611 connected to the mounting base 615, and a forward / reverse cylinder 612. The second base 610 is detachably connected to the feed table 66. The feed table 66 provides a mounting carrier. The detachable connection of the second base 610 to the feed table 66 facilitates the disassembly, maintenance, and component replacement of the reciprocating mechanism. The mounting guide rail 611 within the second base 610 connects to the mounting base 615, guiding the mounting base 615 to move smoothly and linearly along the guide rail, reducing lateral offset errors. The forward / reverse cylinder 612 provides controllable driving force to control the forward and backward stroke of the mounting base 615.

[0026] The second base 610 has a reciprocating guide rod 613 and an oscillating spring 614 on its side, and a cylinder mounting seat 67 is provided on the side of the feed table 66. The cylinder mounting seat 67 houses an oscillating cylinder 62 that cooperates with the oscillating spring 614. The reciprocating guide rod 613 on the side of the second base 610 provides guidance for the reciprocating motion of the mounting plate 615 and constrains the motion trajectory to prevent deviation. The oscillating spring 614 can cooperate with the oscillating cylinder 62 built into the cylinder mounting seat 67. The oscillating cylinder 62 can output periodic driving force, and the oscillating spring 614 can buffer the impact of the driving force and assist in reset, reducing the feeling of motion jerking and making the reciprocating motion smoother. The cylinder mounting seat 67 provides a stable mounting support for the oscillating cylinder 62 to prevent it from shifting during operation.

[0027] A three-phase motor 64 is provided on the first base 63. The three-phase motor 64 is connected to the reciprocating guide rod 613 through a transmission component to provide reciprocating power.

[0028] The mounting base plate 615 has a mounting slide rail 616 on its side, and the mounting slide rail 616 has an outward protrusion structure on its side. The oilstone clamp 618 has a sliding groove on its side, which corresponds to the mounting slide rail 616 and its outward protrusion structure. The mounting slide rail 616 on the side of the mounting base plate 615 has an outward protrusion structure that matches the sliding groove on the side of the oilstone clamp 618, which is used to realize the quick positioning and installation of the oilstone clamp 618 and avoid lateral displacement during installation. The outward protrusion structure can also limit the loosening or movement of the oilstone clamp 618 along the slide rail direction during processing, ensuring the stability of the connection between the oilstone clamp 618 and the mounting base plate 615. At the same time, the matching structure of the slide rail and the sliding groove simplifies the disassembly and assembly process of the oilstone clamp 618.

[0029] A tensioning plate 619 is provided between the oilstone clamp 618 and the mounting base plate 615. One side of the tensioning plate 619 has a first elastic strip 620 that contacts the side of the oilstone clamp 618, and the other side has a second elastic strip 620 that contacts the mounting base plate 615. The tensioning plate 619 between the oilstone clamp 618 and the mounting base plate 615 is used to fill the assembly gap between the two and prevent the oilstone clamp 618 from loosening or shifting due to the gap during processing. The first elastic strip 620 on one side of the tensioning plate 619 is in close contact with the side of the oilstone clamp 618, and the second elastic strip 620 on the other side is in close contact with the side of the mounting base plate 615. The elastic strips can buffer the impact of processing vibration on the oilstone clamp 618 through deformation and can also avoid component wear caused by rigid contact.

[0030] A ball spring plunger 621 is detachably connected to the side of the tensioning plate 619. The ball spring plunger 621 has a blind hole at one end of a threaded post, within which a ball is placed. A spring is positioned between the ball and the bottom of the blind hole, allowing part of the ball to protrude from one end of the threaded post. The detachable ball spring plunger 621 on the side of the tensioning plate 619 facilitates plunger disassembly, maintenance, and replacement, while its threaded post structure ensures a secure connection with the tensioning plate 619. The spring within the blind hole of the ball spring plunger 621 pushes the ball to protrude, allowing it to elastically engage with the whetstone clamp 618 or the mounting base plate 615, further eliminating assembly gaps between the whetstone clamp 618 and the mounting base plate 615 and preventing slight displacement of the whetstone clamp 618 due to vibration during processing.

[0031] A pressure regulator 61 is provided above the first base 63, which is connected to the pressurizing cylinder 617. The pressure regulator 61 is connected to the pressurizing cylinder 617 and can adjust the pressure applied by the pressurizing cylinder 617 to the whetstone according to the actual needs of ultra-precision machining of the outer diameter of the convex cylindrical tapered roller.

[0032] A spray pipe 30 is provided above the guide roller mechanism 20. The spray pipe 30 above the guide roller mechanism 20 can be aimed at the contact area between the roller and the guide roller and the oilstone processing area, and can continuously spray cooling and lubricating fluid during processing.

[0033] Example 2: An ultra-precision machine tool for outer diameter of cylindrical and tapered rollers with convexity. This embodiment includes the content of embodiment 1, and this embodiment is a further improvement on the basis of embodiment 1.

[0034] The bed 20 is equipped with an electrical control box, which is used to control the start and stop of various components and other operations.

[0035] Example 3: An ultra-precision machine tool for outer diameter of cylindrical and tapered rollers with convexity. This embodiment includes the content of embodiment 1, and this embodiment is a further improvement on the basis of embodiment 1.

[0036] A partition 11 is provided on one side of the bed 20, which can be separated from the bed 20 to facilitate personnel to maintain and repair the internal components of the bed 20.

[0037] Example 4: An ultra-precision machine tool for outer diameter of cylindrical and tapered rollers with convexity. This embodiment includes the content of embodiment 1, and this embodiment is a further improvement on the basis of embodiment 1.

[0038] The bed 20 is equipped with a guide rail 12, and the spray pipe 30 is mounted on the guide rail 12 by a mounting bracket. The spray position of the spray pipe 30 can be changed by moving the mounting bracket.

[0039] Example 5: An ultra-precision machine tool for outer diameter of cylindrical and tapered rollers with convexity. This embodiment includes the content of embodiment 1, and this embodiment is a further improvement on the basis of embodiment 1.

[0040] A gearbox 40 is provided on one side of the bed 20. The gearbox 40 is connected to the drive motor built into the bed 10. Both are used to output power to the guide roller mechanism 20.

[0041] Example 6: An ultra-precision machine tool for outer diameter of cylindrical and tapered rollers with convexity. This embodiment includes the content of embodiment 1, and this embodiment is a further improvement on the basis of embodiment 1.

[0042] The guide roller mechanism 20 has a base box for mounting the guide roller, and the base box is provided with a guide roller mounting seat that matches the end of the guide roller. The base box is made of ductile iron using an integral casting process. The guide roller mounting seat on the base box that matches the end of the guide roller is precision bored, and the clearance between its inner hole and the end of the guide roller shaft is controlled within 0.003mm-0.005mm. At the same time, the guide roller mounting seat is connected to the base box with detachable bolts, which can provide stable support when adjusting the horizontal / vertical angle of the guide roller to avoid the angle rebound after adjustment, and can also achieve quick disassembly and replacement after the guide roller wears.

[0043] A feeding mechanism 50 is provided on one side of the base box to feed materials into the gap between two guide rollers. The feeding mechanism 50 can be a conveying pipe installed on the upper part of a vertical rod connected to the machine bed 10. After the material is placed into the conveying pipe, it slides into the gap between the two guide rollers. The feeding mechanism 50 solves the stability problem of traditional feeding methods. The vertical rod is directly fixed to the machine bed 10, forming a rigid connection with the machine tool body. This can offset the vibration generated by the high-speed rotation of the guide rollers and avoid the roller feeding deviation caused by vibration offset of the feeding mechanism, ensuring that the roller falls into the center of the gap between the two guide rollers. Among them, the conveying pipe, as a material guide, can be designed with an appropriate inner diameter and tilt angle according to the roller specifications. The tilt angle can control the roller to slide down the pipe at a uniform speed, avoiding the roller collision caused by gravity acceleration. In addition, the closed guide of the conveying pipe can prevent the roller from being contaminated by external dust during the feeding process.

[0044] It should also be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0045] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the present utility model, and are not intended to limit the implementation methods of the present utility model in any way. Any person skilled in the art can make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in the present utility model, but these should still be regarded as the same technology or embodiment as the present utility model.

[0046] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A super-precision machine tool for outer diameter of cylindrical and tapered rollers with convexity, comprising a bed (10), wherein a guide roller mechanism (20) is provided on the bed (10), and an oilstone assembly (60) is provided on one side of the guide roller mechanism (20), characterized in that, The oilstone assembly (60) includes a first base (63) fixed on the bed (10). A feed table (66) capable of displacement is provided on one side of the first base (63). A mounting plate (615) capable of displacement is connected to one side of the feed table (66). An oilstone clamp (618) is detachably connected to the bottom of the mounting plate (615). The oilstone clamp (618) has at least two mounting slots for mounting oilstones. A pressurizing cylinder (617) corresponding to and cooperating with the oilstone is provided on one side of the mounting plate (615).

2. The ultra-precision machine tool for outer diameter of cylindrical and tapered rollers with convexity according to claim 1, characterized in that, The first base (63) is provided with a reducer (65) at its upper end. The output end of the reducer (65) is provided with a lead screw (68). The lead screw (68) is placed inside the first base (63) and is set in a vertical position. The lead screw (68) is provided with a lead screw nut seat (69). The lead screw nut seat (69) is connected to the side of the feed table (66).

3. The ultra-precision machine tool for outer diameter of cylindrical and tapered rollers with convexity according to claim 2, characterized in that, The connection between the lead screw (68) and the first base (63) is provided with a thrust ball bearing, a deep groove ball bearing and a locking nut.

4. The ultra-precision machine tool for outer diameter of convex cylindrical and tapered rollers according to claim 1, characterized in that, The feed table (66) is provided with a reciprocating mechanism connected to the mounting base plate (615). The reciprocating mechanism includes a second base (610) installed in the feed table (66), the second base (610) having a mounting guide rail (611) connected to the mounting base plate (615) and a forward / backward cylinder (612).

5. The ultra-precision machine tool for outer diameter of convex cylindrical and tapered rollers according to claim 4, characterized in that, The second base (610) is provided with a reciprocating guide rod (613) and an oscillating spring (614) on its side. The feed table (66) is provided with a cylinder mounting seat (67) on its side. The cylinder mounting seat (67) has an oscillating cylinder (62) that is configured to cooperate with the oscillating spring (614).

6. The ultra-precision machine tool for outer diameter of convex cylindrical and tapered rollers according to claim 1, characterized in that, The mounting base plate (615) is provided with a mounting slide rail (616) on its side. The mounting slide rail (616) has an outward protrusion structure on its side. The oilstone clamp (618) has a sliding groove on its side. The sliding groove corresponds to the mounting slide rail (616) and the outward protrusion structure on its side.

7. The ultra-precision machine tool for outer diameter of cylindrical and tapered rollers with convexity according to claim 6, characterized in that, A tensioning insert (619) is provided between the oilstone clamp (618) and the mounting base plate (615). One side of the tensioning insert (619) has a first elastic strip (620) that contacts the side of the oilstone clamp (618), and the other side has a second elastic strip (622) that contacts the mounting base plate (615).

8. The ultra-precision machine tool for outer diameter of convex cylindrical and tapered rollers according to claim 7, characterized in that, The tensioning insert (619) is detachably connected to a ball spring plunger (621) on its side.

9. A super-precision machine tool for the outer diameter of convex cylindrical and tapered rollers according to claim 1, characterized in that, A pressure regulator (61) is provided above the first base (63) and is connected to the pressurizing cylinder (617).

10. A super-precision machine tool for the outer diameter of convex cylindrical and tapered rollers according to claim 1, characterized in that, A spray pipe (30) is provided above the guide roller mechanism (20).

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