A device for grinding and superfinishing the rolling surface of ceramic rollers

Abstract

The present invention relates to the technical field of ceramic roller processing, and provides a device for grinding and superfinishing the rolling surface of a ceramic roller, comprising a support housing, a drive module, a grinding module, and an abrasive circulation module. The grinding module, which is fixed by the support housing, comprises an inner grinding mechanism, an outer grinding ring, and a support collection tank. The inner grinding mechanism comprises a base, a linear drive assembly, multiple inner grinding ring subassemblies, a rotating shaft, and a top cover. The outer grinding ring is coaxially fixedly arranged on the outside of the multiple inner grinding ring subassemblies, and the support collection tank is coaxially fixedly arranged on the outside of the rotating shaft below the multiple inner grinding ring subassemblies and the outer grinding ring. The drive module is fixedly arranged at the bottom of the housing, and can be used to drive the inner grinding mechanism to rotate in a circular motion. One end of the abrasive circulation module is arranged above the grinding module, and the other end of the abrasive circulation module is connected to the support collection tank of the grinding module. The present invention can improve the processing accuracy and processing efficiency of the rolling surface of a ceramic roller.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic roller processing, in particular to a device for grinding and superfinishing the rolling surface of a ceramic roller. Background Art

[0002] High-end roller bearings are the core basic components of major technical equipment in key areas. High-precision rollers are the most core components of high-end roller bearings. The accuracy index of the roller rolling surface directly affects the accuracy, service performance and life of the complete bearing set.

[0003] As the use environments of roller bearings become increasingly diverse, existing ferromagnetic materials can no longer meet or fully meet the requirements for bearing rolling elements. Compared with ferromagnetic materials, engineering ceramics offer excellent properties as bearing rolling element materials, including low density, high strength, high hardness, wear resistance, high temperature resistance, corrosion resistance, and good self-lubrication.

[0004] At present, the commonly used finishing methods for the rolling surface of rollers made of ferromagnetic materials mainly include the through-type super finishing method based on the centerless machining principle, as well as the centering reciprocating super finishing, double-sided grinding, double-disc straight groove grinding and other processing methods based on other machining principles.

[0005] Centerless through-type super finishing is the most representative and currently the most widely used processing method in the field of roller rolling surface processing of ferromagnetic materials. Under this processing method, the workpieces are fed one by one continuously to achieve batch processing of the roller rolling surface. If it is used for the fine processing of the rolling surface of ceramic rollers, due to the high hardness of ceramic materials, the oilstone and guide rollers will produce more severe wear during the processing, resulting in a sharp decrease in equipment accuracy and difficulty in ensuring the consistency of accuracy between multiple workpieces. Under the centering reciprocating super finishing processing method, the workpieces are fed one by one intermittently to achieve batch processing of the roller rolling surface. However, the clamping method requires that the two end faces of the roller be machined with center holes. If it is used for the fine processing of the rolling surface of ceramic rollers, the double-end drilling step is added, which greatly increases the difficulty of the process. At the same time, factors such as clamping accuracy and oilstone wear will cause large processing errors. Double-disc straight groove grinding can achieve batch processing of roller rolling surfaces and can effectively improve the dimensional accuracy consistency of the roller rolling surface. If used for finishing the rolling surface of ceramic rollers, the high hardness of the ceramic material will cause severe wear on the linear and spiral grooves during machining, resulting in a sharp decrease in the grinding disc's precision and increasing the difficulty of trimming the linear grooves. Double-sided grinding is less dependent on equipment accuracy, but the single-shot processing capacity of a single piece of equipment is limited, enabling only small batches of intermittent processing of ceramic rollers. While the rolling surface accuracy of rollers within a batch is relatively consistent, consistency between batches is difficult to guarantee.

[0006] It can be seen from this that if the above processing method is used for the fine processing of the rolling surface of ceramic rollers, due to the limitations of the processing form, ceramic material properties and dependence on the accuracy of processing equipment, it is difficult to achieve both the accuracy consistency of the rolling surface of the roller and batch processing.

[0007] Therefore, how to improve the accuracy and efficiency of ceramic roller rolling surface processing has become a technical problem that needs to be solved urgently. Summary of the Invention

[0008] In view of this, in order to overcome the deficiencies of the prior art, the present invention aims to provide a device for grinding and superfinishing the rolling surface of a ceramic roller.

[0009] The present invention provides a device for grinding and superfinishing the rolling surface of a ceramic roller, the device comprising a supporting shell, a driving module, a grinding module, and an abrasive circulation module. The supporting shell comprises a box body and a single-arm bracket fixedly arranged on the top of the box body. The grinding module fixed by the supporting shell comprises an inner grinding mechanism, an outer grinding ring, and a support collection tank. The inner grinding mechanism comprises a base, a linear drive component, a plurality of inner grinding ring subassemblies, a rotating shaft, and a top cover. The base and the top cover are coaxially sleeved on the outer side of the rotating shaft from bottom to top. The plurality of inner grinding ring subassemblies are circumferentially distributed along the rotating shaft and are connected to each other. Between the base and the top cover, a linear drive assembly is fixedly arranged on one side of the rotating shaft, and the linear drive assembly can drive multiple inner grinding ring split assemblies to move linearly. The outer grinding ring is coaxially fixedly arranged on the outside of the multiple inner grinding ring split assemblies, and the support collection tank is coaxially fixedly arranged on the outside of the rotating shaft below the multiple inner grinding ring split assemblies and the outer grinding ring; the drive module is fixedly arranged at the bottom of the box, and the drive module can drive the internal grinding mechanism to rotate in a circular motion; one end of the abrasive circulation module is arranged above the grinding module, and the other end of the abrasive circulation module is connected to the support collection tank of the grinding module.

[0010] Preferably, in the device for grinding and superfinishing the rolling surface of a ceramic roller of the present invention, the linear drive assembly includes a linear drive motor, a first gear and a gear ring, the gear ring is fixed on the base coaxially with the rotating shaft, and the first gear fixedly assembled at the output end of the linear drive motor matches the inner side of the gear ring.

[0011] Preferably, in the device for grinding and superfinishing the rolling surface of a ceramic roller of the present invention, the inner grinding ring split assembly includes a second gear, a rack, a slider, a slide rail, a split grinding block and a split grinding block substrate. The slide rail is fixedly arranged on the base according to the linear motion direction of the grinding ring split assembly, the slider is matchedly assembled on the slide rail, the split grinding block substrate is fixedly arranged on the upper end face of the slider, the split grinding block is arranged at the outer end of the split grinding block substrate, the rack is fixedly assembled on the side end face of the slider, and the second gear is matchedly arranged between the rack and the linear drive assembly.

[0012] Preferably, in the device for grinding and superfinishing the rolling surface of a ceramic roller of the present invention, the outer end face of the split grinding block is arc-shaped, the outer end faces of multiple split grinding blocks are connected to each other to form a complete inner grinding ring working surface, the inner end face of the split grinding block is fixedly connected to the first cylinder radially arranged with the rotating shaft as the center, the outer end of the split grinding block substrate matches the split grinding block, and the inner end of the split grinding block substrate is triangular.

[0013] Preferably, in the device for grinding and superfinishing the rolling surface of ceramic rollers of the present invention, the outer grinding ring is in the shape of a non-closed circular ring as a whole, a feed and discharge channel is provided on the outer grinding ring, and two conveying guide rails are symmetrically arranged on both sides of the feed and discharge channel.

[0014] Preferably, in the device for grinding and superfinishing the rolling surface of ceramic rollers of the present invention, a trimming block is arranged between the conveying guide rails, the inner end face of the trimming block is an arc surface matching the inner grinding ring split assembly, and the outer end face of the trimming block is fixedly provided with a second cylinder.

[0015] Preferably, in the device for grinding and superfinishing the rolling surface of a ceramic roller of the present invention, the annular trough body of the support collection trough is concave downward, and an annular support frame is coaxially arranged in the annular trough body. The support frame matches the annular gap between the inner grinding mechanism and the outer grinding ring in the vertical direction. An abrasive outlet is arranged at the bottom of the annular trough body, and a plurality of fastening protrusions are circumferentially distributed on the top of the support collection trough. Fastening holes are arranged one by one on the fastening protrusions, and the support collection trough is fixedly connected to the top of the box body by assembling the fastening holes and the fasteners.

[0016] Preferably, in the device for grinding and superfinishing the rolling surface of a ceramic roller of the present invention, the drive module includes a drive motor, a belt transmission assembly, a reducer, a third gear and a pull plate, one end of the belt transmission assembly is connected to the output end of the drive motor, and the other end of the belt transmission assembly is connected to the input end of the reducer, and the third gear and the pull plate are fixedly arranged at the output end of the reducer from bottom to top.

[0017] Preferably, in the device for grinding and superfinishing the rolling surface of ceramic rollers of the present invention, a support seat is provided at the bottom of the box body supporting the shell, the lower end of the rotating shaft of the internal grinding mechanism is coaxially assembled in the support seat, the upper end of the rotating shaft is assembled and connected to the single-arm bracket supporting the shell, and the rotating shaft in the box body is provided with a rotating shaft box and a fourth gear from top to bottom.

[0018] Preferably, in the device for grinding and superfinishing the rolling surface of a ceramic roller of the present invention, the abrasive circulation module includes an abrasive drip irrigation pipe, an abrasive delivery pipe, an abrasive delivery pump, an abrasive collection box and an abrasive collection pipe. The abrasive collection box is fixedly arranged in the box body, and the abrasive drip irrigation pipe, which is arranged above the grinding module and is in an open ring shape as a whole, is connected to the abrasive collection box in turn through the abrasive delivery pipe and the abrasive delivery pump. One end of the abrasive collection pipe is connected to the support collection trough, and the other end of the abrasive collection pipe is connected to the abrasive collection box.

[0019] The device for grinding and superfinishing the rolling surface of a ceramic roller of the present invention can realize high-precision surface forming processing of the rolling surface of the ceramic roller through a comprehensive structural design. While increasing the number of single processing of ceramic rollers, it significantly improves the batch accuracy consistency problem, effectively reduces the dependence on equipment accuracy during the processing process, and improves the processing accuracy and processing efficiency of the rolling surface of the ceramic roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 Schematic diagram of a device for grinding and superfinishing the rolling surface of a ceramic roller according to an exemplary embodiment of the present invention;

[0022] Figure 2 is another structural schematic diagram of a device for grinding and superfinishing the rolling surface of a ceramic roller according to an exemplary embodiment of the present invention;

[0023] Figure 3 Schematic diagram of a partial structure of a device for grinding and superfinishing the rolling surface of a ceramic roller according to an exemplary embodiment of the present invention;

[0024] Figure 4 is another partial structural schematic diagram of a device for grinding and superfinishing the rolling surface of a ceramic roller according to an exemplary embodiment of the present invention;

[0025] Figure 5 Schematic diagram of the structure of an outer grinding ring of an apparatus for grinding and superfinishing the rolling surface of a ceramic roller according to an exemplary embodiment of the present invention;

[0026] Figure 6 A schematic diagram of a partial assembly structure of a device for grinding and superfinishing the rolling surface of a ceramic roller according to an exemplary embodiment of the present invention;

[0027] Figure 7 Schematic diagram of the structure of a support and collection tank of a device for grinding and superfinishing the rolling surface of a ceramic roller according to an exemplary embodiment of the present invention;

[0028] Figure 8 An example diagram of the first stage of creating a high-precision shaping and rolling surface for ceramic rollers;

[0029] Figure 9 An example diagram of the second stage of creating high-precision shaping of the rolling surface of ceramic rollers;

[0030] Figure 10 An example diagram of the third stage of creating high-precision shaping of the rolling surface of ceramic rollers;

[0031] Figure 11 An example diagram of the fourth stage of creating high-precision shaping of the rolling surface of ceramic rollers;

[0032] Figure 12 This is an example diagram of a ceramic roller in the processing area;

[0033] Figure 13 This is an example diagram of the contact relationship and relative motion state between the ceramic roller and the outer end surface of the split grinding block in this example;

[0034] Figure 14 This is an example diagram of the contact relationship and relative motion state between the ceramic roller and the working surface of the outer grinding ring in this example;

[0035] Figure 15 This is an example diagram of a conical ceramic roller in the processing area;

[0036] Figure 16 This is an example diagram of a spherical ceramic roller in the processing area.

[0037] In the figure, 1-support shell, 2-drive module, 3-grinding module, 4-abrasive circulation module, 11-box, 12-single-arm bracket, 31-inner grinding mechanism, 32-outer grinding ring, 33-support collection tank, 21-drive motor, 22-belt transmission assembly, 23-reducer, 24-third gear, 25-pull plate, 41-abrasive drip irrigation pipe, 42-abrasive delivery pipe, 43-abrasive delivery pump, 44-abrasive collection box, 45-abrasive collection pipe, 311-base, 312-linear drive assembly, 313-inner grinding ring split assembly, 314-rotating shaft, 315-top cover, 3121-linear drive motor, 3122-first gear, 3123-gear Wheel ring, 3131-second gear, 3132-rack, 3133-slider, 3134-slide rail, 3135-split grinding block, 3136-split grinding block substrate, 3137-first cylinder, 321-feed and discharge channel, 322-conveying guide rail, 323-dressing block, 324-second cylinder, 13-support seat, 316-rotating shaft box, 317-fourth gear, 331-annular groove body, 332-support frame, 333-abrasive outlet, 334-fastening protrusion, 335-fastening hole, 5-ceramic roller, 6-spacer, 7-abrasive, 8-debris, 51-first contact line, 52-second contact line; 53-own axis, 54-circular trajectory. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0039] It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments may be combined with each other; and, based on the embodiments in this disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative work are within the scope of protection of this disclosure.

[0040] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this disclosure, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0041] Figure 1 FIG. 1 is a schematic structural diagram of a device for grinding and superfinishing the rolling surface of a ceramic roller according to an exemplary embodiment of the present invention. Figure 1 As shown, the device for grinding and superfinishing the rolling surface of a ceramic roller in this embodiment includes a supporting shell 1, a driving module 2, a grinding module 3, and an abrasive circulation module 4.

[0042] Figure 2 FIG. 1 is another structural diagram of an apparatus for grinding and superfinishing the rolling surface of a ceramic roller according to an exemplary embodiment of the present invention, as shown in FIG. Figure 1 and Figure 2 As shown, the supporting shell 1 includes a box body 11 and a single-arm bracket 12 fixedly arranged on the top of the box body 11 , and the grinding module 3 fixed by the supporting shell 1 includes an inner grinding mechanism 31 , an outer grinding ring 32 and a supporting collection tank 33 .

[0043] The driving module 2 is fixedly arranged at the bottom of the box body 11, and the internal grinding mechanism 31 can be driven to rotate in a circular motion through the driving module 2; the driving module 2 includes a driving motor 21, a belt transmission assembly 22, a reducer 23, a third gear 24 and a pull plate 25, one end of the belt transmission assembly 22 is connected to the output end of the driving motor 21, and the other end of the belt transmission assembly 22 is connected to the input end of the reducer 23, and the third gear 24 and the pull plate 25 are fixedly arranged at the output end of the reducer 23 from bottom to top.

[0044] One end of the abrasive circulation module 4 is arranged above the grinding module 3, and the other end of the abrasive circulation module 4 is connected to the support collection tank 33 of the grinding module 3. The abrasive circulation module 4 includes an abrasive drip irrigation pipe 41, an abrasive delivery pipe 42, an abrasive delivery pump 43, an abrasive collection box 44 and an abrasive collection pipe 45. The abrasive collection box 44 is fixedly arranged in the box body 11. The abrasive drip irrigation pipe 41, which is arranged above the grinding module 3 and is in the shape of an open ring, is connected to the abrasive collection box 44 in sequence through the abrasive delivery pipe 42 and the abrasive delivery pump 43. One end of the abrasive collection pipe 45 is connected to the support collection tank 33, and the other end of the abrasive collection pipe 45 is connected to the abrasive collection box 44.

[0045] Figure 3 FIG. 1 is a partial structural diagram of a device for grinding and superfinishing the rolling surface of a ceramic roller according to an exemplary embodiment of the present invention, as shown in FIG. Figure 3 、 Figure 2 and Figure 1As shown, the inner grinding mechanism 31 includes a base 311, a linear drive component 312, a plurality of inner grinding ring split components 313, a rotating shaft 314 and a top cover 315. The base 311 and the top cover 315 are coaxially sleeved on the outside of the rotating shaft 314 from bottom to top. The plurality of inner grinding ring split components 313 are circumferentially distributed between the base 311 and the top cover 315 along the rotating shaft 314 and are connected to each other. The linear drive component 312 is fixedly arranged on one side of the rotating shaft 314, and the plurality of inner grinding ring split components 313 can be driven to move linearly by the linear drive component 312. The outer grinding ring 32 is coaxially fixedly arranged on the outside of the plurality of inner grinding ring split components 313. The support collection tank 33 is coaxially fixedly arranged on the outside of the rotating shaft 314 below the plurality of inner grinding ring split components 313 and the outer grinding ring 32.

[0046] like Figure 3 As shown, the linear drive assembly 312 includes a linear drive motor 3121, a first gear 3122 and a gear ring 3123. The gear ring 3123 is fixedly arranged on the base 311 coaxially with the rotating shaft 314. The first gear 3122 fixedly assembled at the output end of the linear drive motor 3121 matches the inner side of the gear ring 3123.

[0047] Figure 4 FIG. 1 is another partial structural diagram of an apparatus for grinding and superfinishing the rolling surface of a ceramic roller according to an exemplary embodiment of the present invention. Figure 4 As shown, the inner grinding ring split assembly 313 includes a second gear 3131, a rack 3132, a slider 3133, a slide rail 3134, a split grinding block 3135 and a split grinding block substrate 3136. The slide rail 3134 is fixedly set on the base 311 according to the linear motion direction of the grinding ring split assembly 313. The slider 3133 is matchedly assembled on the slide rail 3134. The split grinding block substrate 3136 is fixedly set on the upper end surface of the slider 3133. The split grinding block 3135 is set at the outer end of the split grinding block substrate 3136. The rack 3132 is fixedly assembled on the side end surface of the slider 3133. The second gear 3131 is matchedly arranged between the rack 3132 and the linear drive assembly 312. The outer end face of the split grinding block 3135 is arc-shaped, and the outer end faces of multiple split grinding blocks 3135 are connected to each other to form a complete inner grinding ring working surface. The inner end face of the split grinding block 3135 is fixedly connected to the first cylinder 3137 radially arranged with the rotating shaft 314 as the center. The outer end of the split grinding block substrate 3136 matches the split grinding block 3135, and the inner end of the split grinding block substrate 3136 is triangular.

[0048] It should be noted that the number of inner grinding ring split assemblies 313 in the apparatus for grinding and superfinishing the rolling surface of a ceramic roller according to the present invention can be specifically selected based on the actual processing scenario. For example, when 10 inner grinding ring split assemblies 313 are provided, the outer end faces of the 10 split grinding blocks 3135 are connected to each other to form a complete inner grinding ring working surface; the split grinding block base plate 3136, driven by the linear drive assembly 312, performs a linear feed motion along a direction parallel to the edge line of a regular decagon with the axis of the rotating shaft 314 as the midpoint. This linear feed motion can achieve diameter compensation of the inner grinding ring working surface. In conjunction with the trimming of the inner grinding ring working surface by the trimming block 323, a continuous and complete inner grinding ring working surface of different diameter sizes can be obtained. The first cylinder 3137 applies a radial load to the split grinding block 3135, further applying the load to the ceramic roller 5. Under the action of the 10 first cylinders 3137, the stable application of the processing load is guaranteed.

[0049] In practical applications, in embodiments of the present invention, the material of the split grinding block 3135 can be specifically selected based on the abrasive form, including but not limited to a split grinding block 3135 suitable for fixed abrasives and a split grinding block 3135 suitable for free abrasives. When a split grinding block 3135 suitable for free abrasives is used for processing, the trimming block 323 is in direct contact with the working surface of the inner grinding ring to trim the geometric and dimensional accuracy of the working surface of the inner grinding ring. When a split grinding block 3135 suitable for fixed abrasives is used for processing, the trimming block 323 does not need to perform real-time trimming of the working surface of the inner grinding ring during the processing. When the split grinding block 3135 is worn and the remaining amount of the split grinding block 3135 or the fixed abrasive cannot meet the processing requirements, the split grinding block 3135 of the corresponding type and size can be directly replaced.

[0050] Figure 5 FIG1 is a schematic structural diagram of an outer grinding ring of an apparatus for grinding and superfinishing the rolling surface of a ceramic roller according to an exemplary embodiment of the present invention. Figure 6 FIG. 1 is a schematic diagram of a partial assembly structure of a device for grinding and superfinishing the rolling surface of a ceramic roller according to an exemplary embodiment of the present invention, as shown in FIG. Figure 5 、 Figure 6 As shown, the outer grinding ring 32 is generally annular and has an inlet and outlet channel 321 disposed thereon. Two conveying rails 322 are symmetrically arranged on either side of the inlet and outlet channel 321. A trimming block 323 is disposed between the conveying rails 322. The inner end surface of the trimming block 323 is an arc surface that matches the inner grinding ring split assembly 313. A second cylinder 324 is fixedly mounted on the outer end surface of the trimming block 323.

[0051] It should be noted that in the embodiment of the present invention, when free abrasives are used for processing, the material of the outer grinding ring 32 needs to be more wear-resistant than the material of the separate grinding block 3135, in order to achieve differential wear of the inner and outer grinding rings, that is, the inner grinding ring wears first and the outer grinding ring wears less, which is beneficial to ensure the processing accuracy of the device and reduce maintenance costs. During the processing, the outer grinding ring 32 is fixed, and the working surface of the outer grinding ring 32 can be trimmed by indirect trimming, that is, based on the trimmed working surface of the inner grinding ring, the working surface of the outer grinding ring 32 is trimmed for geometric accuracy and dimensional accuracy during the processing. The feed and discharge channel 321 provided on the outer grinding ring 32 is used for the in and out circulation of the ceramic roller 5 to be processed, so as to realize batch processing of the ceramic roller 5. In the embodiment of the present invention, the material of the trimming block 323 needs to be more wear-resistant than the material of the separate grinding block 3135 to achieve the trimming of the working surface of the inner grinding ring.

[0052] A support base 13 is set at the bottom of the box body 11 supporting the shell 1, and the lower end of the rotating shaft 314 of the internal grinding mechanism 31 is coaxially assembled in the support base 13, and the upper end of the rotating shaft 314 is assembled and connected to the single-arm bracket 12 supporting the shell 1. The rotating shaft 314 in the box body 11 is provided with a rotating shaft box 316 and a fourth gear 317 from top to bottom.

[0053] Figure 7 FIG. 1 is a schematic structural diagram of a support collecting tank of a device for grinding and superfinishing the rolling surface of a ceramic roller according to an exemplary embodiment of the present invention. Figure 7 、 Figure 6 、 Figure 4 、 Figure 3 、 Figure 2 and Figure 1 As shown, the annular groove body 331 of the support collection groove 33 is concave downward, and an annular support frame 332 is coaxially arranged in the annular groove body 331. The support frame 332 matches the annular gap between the inner grinding mechanism 31 and the outer grinding ring 32 in the vertical direction. An abrasive outlet 333 is set at the bottom of the annular groove body 331, and a plurality of fastening protrusions 334 are circumferentially distributed on the top of the support collection groove 33. Fastening holes 335 are correspondingly arranged on the fastening protrusions 334. The support collection groove 33 is fixedly connected to the top of the box body 11 by assembling the fastening holes 335 with the fasteners.

[0054] The following describes in detail the application method of the device for grinding and superfinishing the rolling surface of a ceramic roller according to an exemplary embodiment of the present invention in a specific scenario:

[0055] Step 1: Based on the target size of the ceramic roller 5 to be machined, determine the size combination of the inner grinding ring working surface and the outer grinding ring 32 formed by the outer end surfaces of the multiple split grinding blocks 3135 that are connected to each other, and select the corresponding split grinding blocks 3135 according to the type of abrasive; start the linear drive motor 3121 to drive the split grinding blocks 3135 to feed, and adjust the inner grinding ring working surface formed by the outer end surfaces of the multiple split grinding blocks 3135 that are connected to each other to meet the initial size;

[0056] Step 2: Directly apply the working surface of the dressing block 323 to the working surface (arc-shaped outer end surface) of the split grinding block 3135, apply a load of 0-5kPa, start the drive motor 21 to make the inner grinding mechanism 31 rotate relatively around the rotating shaft 314 at a speed of 10-20rpm; when free abrasive processing is adopted, according to different processing requirements, the processing area formed by the outer grinding ring 32 and the outer end surfaces of the multiple split grinding blocks 3135 connected to each other to form a complete inner grinding ring working surface is continuously filled with grinding fluid composed of abrasives of different types and particle sizes. When fixed abrasive processing is adopted, coolant is continuously added to the processing area to achieve dressing of the inner grinding ring working surface;

[0057] Step 3: After a period of trimming, the geometric accuracy and dimensional accuracy of the inner grinding ring working surface are tested. When the accuracy of the inner grinding ring working surface meets the processing requirements, proceed to step 4; if the accuracy does not meet the design requirements, loop step 2 until the accuracy meets the standard;

[0058] Step 4: Start the drive motor 21 to rotate the inner grinding mechanism 31 at an initial speed of 0-10 rpm, arrange the ceramic roller 5 and the spacer 6 alternately, and the ceramic roller 5 enters the processing area from the conveying guide rail 322 on one side of the trimming block 323; use the inner grinding ring working surface to press the ceramic roller 5, and under the extrusion and friction of the inner and outer grinding ring working surfaces, the ceramic roller 5 rotates around its own axis while making a circular motion around the rotating shaft 314 in the processing area, and leaves the processing area from the conveying guide rail 322 on the other side of the trimming block 323.

[0059] Step 5: Rearrange the ceramic rollers 5 and the spacers 6 that have left the processing area and send them back into the processing area to ensure that there is a continuous flow of ceramic rollers 5 in and out of the processing area, thereby achieving batch continuous processing of the rolling surface of the ceramic rollers 5;

[0060] Step 6: After the ceramic roller 5 in the processing area circulates stably, the rotation speed of the inner grinding mechanism 31 is adjusted to 10-30 rpm, and the first cylinder 3137 is further used to gradually apply a load of 0-0.5 MPa to the ceramic roller 5; the rolling surface of the ceramic roller 5 begins to be ground or super-finished under the combined action of the working surfaces of the inner grinding ring and the outer grinding ring 32, and the material on the rolling surface of the ceramic roller 5 is effectively removed;

[0061] Step 7: After a period of processing, the ceramic rollers 5 that have left the processing area are randomly inspected. If the accuracy index of the rolling surface of the ceramic rollers 5 does not meet the technical requirements, proceed to step 6; if the accuracy index of the rolling surface of the ceramic rollers 5 meets the technical requirements, proceed to step 8;

[0062] Step 8: Gradually reduce the load applied by the first cylinder 3137 to zero; stop adding grinding fluid or coolant to the processing area; stop the ceramic rollers 5 from entering the processing area until all ceramic rollers 5 leave the processing area; adjust the speed of the internal grinding mechanism 31 to zero; the linear drive motor 3121 reverses to drive the split grinding block 3135 back to its initial position.

[0063] Based on the apparatus for grinding and superfinishing the rolling surface of a ceramic roller according to an exemplary embodiment of the present invention, the processing principle and process of ceramic roller processing are further described below. In the embodiment of the present invention, the forming and high-precision creation of the rolling surface of the ceramic roller includes the following stages:

[0064] Stage 1: Under the extrusion effect between the outer end surfaces of the outer grinding ring 32 and the multiple split grinding blocks 3135, which are connected to each other to form a complete inner grinding ring working surface, it is applicable to ceramic rollers 5 with any outer circular cross-section. In batch processing, the rolling surface material of large-diameter ceramic rollers 5 is removed first, and the rolling surface material of small-diameter ceramic rollers 5 is removed later. It can also compare the dimensional accuracy of multiple samples of ceramic rollers 5; Figure 8 An example diagram of the first stage of creating a high-precision shaping and rolling surface for ceramic rollers;

[0065] Phase 2: As the machining process progresses, the ceramic roller 5 is subjected to friction and compression between the abrasive 7, the outer grinding ring 32, and the outer end faces of the multiple split grinding blocks 3135, which are connected to form a complete inner grinding ring working surface. This selectively removes material from the rolling surface, that is, material from high points on the rolling surface is removed first, and material from low points on the rolling surface is removed later, producing debris 8. The dimensional accuracy consistency between multiple samples of the ceramic roller 5 is initially improved. Figure 9 An example diagram of the second stage of creating high-precision shaping of the rolling surface of ceramic rollers;

[0066] Stage 3: As the ceramic roller 5 continues to roll between the abrasive 7, the outer grinding ring 32, and the outer end surfaces of the multiple split grinding blocks 3135, which are connected to form a complete inner grinding ring working surface, the rolling surface material of the ceramic material 5 is continuously removed, and the dimensional accuracy of the ceramic roller 5 between multiple samples continues to improve, and the geometric accuracy is also improved accordingly; Figure 10 An example diagram of the third stage of creating high-precision shaping of the rolling surface of ceramic rollers;

[0067] Stage 4: Under the continuous interaction between the abrasive 7, the outer grinding ring 32 and the outer end faces of the multiple split grinding blocks 3135, which are connected to form a complete inner grinding ring working surface, the precision consistency (size, geometry) of the rolling surface of the ceramic roller 5 continues to converge, achieving the precision evolution goal of the ceramic roller 5 and realizing the high-precision creation of the rolling surface of the ceramic roller 5; Figure 11 An example diagram of the fourth stage of shaping and high-precision creation of the rolling surface of a ceramic roller.

[0068] It should be noted that, in the embodiment of the present invention, the processing area is composed of the outer end surfaces of the outer grinding ring 32 and the multiple split grinding blocks 3135 connected to each other to form a complete inner grinding ring working surface. Figure 12 This is an example diagram of a cylindrical ceramic roller in the processing area. Figure 13 This is an example diagram of the contact relationship and relative motion state between the ceramic roller and the outer end surface of the split grinding block in this example; Figure 14 This is an example diagram of the contact relationship and relative motion state between the ceramic roller and the working surface of the outer grinding ring in this example; Figure 12 、 Figure 13 and Figure 14 As shown, during the machining process, the contact relationship between the rolling surface of the ceramic roller 5 and the outer end surface of the split grinding block 3135 is line contact. Figure 13 The first contact line 51 is used as an example; the contact relationship between the rolling surface of the ceramic roller 5 and the working surface of the outer grinding ring 32 is line contact. Figure 14 The second contact line 52 is used as an illustration; under the extrusion and friction of the outer end faces of the outer grinding ring 32 and the multiple split grinding blocks 3135, which are connected to each other to form a complete inner grinding ring working surface, the ceramic roller 5 rotates around its own axis 53 and also rolls circumferentially along the circumferential trajectory 54, thereby removing the rolling surface material of the ceramic roller.

[0069] It should be noted that the working surfaces of the outer grinding ring 32 and the multiple split grinding blocks 3135 in the device for grinding and superfinishing the rolling surface of ceramic rollers in the embodiment of the present invention can be adaptively adjusted and designed according to the specific shape of the ceramic roller 5, thereby realizing integrated grinding and superfinishing of different types of ceramic rollers 5. Figure 15 This is an example diagram of a conical ceramic roller in the processing area; Figure 16 This is an example diagram of a spherical ceramic roller in the processing area.

[0070] According to the embodiment of the present invention, the device for grinding and superfinishing the rolling surface of a ceramic roller can realize high-precision surface forming processing of the rolling surface of the ceramic roller. While increasing the number of single processing of ceramic rollers, it significantly improves the batch accuracy consistency problem, effectively reduces the dependence on equipment accuracy during the processing process, and improves the processing accuracy and processing efficiency of the rolling surface of the ceramic roller.

[0071] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A device for grinding and superfinishing the rolling surface of ceramic rollers, characterized in that: The device includes a supporting shell, a driving module, a grinding module, and an abrasive circulation module. The supporting shell includes a box body and a single-arm bracket fixedly arranged on the top of the box body. The grinding module fixed by the supporting shell includes an inner grinding mechanism, an outer grinding ring and a support collection tank. The inner grinding mechanism includes a base, a linear drive component, a plurality of inner grinding ring split components, a rotating shaft and a top cover. The base and the top cover are coaxially sleeved on the outside of the rotating shaft from bottom to top. The plurality of inner grinding ring split components are circumferentially distributed between the base and the top cover along the rotating shaft. The linear drive component is fixedly arranged on one side of the rotating shaft. The plurality of inner grinding ring split components can be driven to move linearly by the linear drive component. The outer grinding ring is coaxially fixed. On the outside of the multiple inner grinding ring split assemblies, the support and collection groove is coaxially fixedly arranged on the outside of the rotating shaft below the multiple inner grinding ring split assemblies and the outer grinding ring; the driving module is fixedly arranged at the bottom of the box, and the inner grinding mechanism can be driven to rotate in a circular motion through the driving module; one end of the abrasive circulation module is arranged above the grinding module, and the other end of the abrasive circulation module is connected to the support and collection groove of the grinding module; the outer grinding ring is a non-closed circular ring as a whole, and a feed and discharge channel is arranged on the outer grinding ring, and two conveying guide rails are symmetrically arranged on both sides of the feed and discharge channel; a dressing block is arranged between the conveying guide rails, and the inner end face of the dressing block is an arc surface matching the inner grinding ring split assembly, and a second cylinder is fixedly arranged on the outer end face of the dressing block.

2. The device for grinding and superfinishing the rolling surface of ceramic rollers according to claim 1, characterized in that: The linear drive assembly includes a linear drive motor, a first gear and a gear ring. The gear ring is fixedly arranged on the base coaxially with the rotating shaft. The first gear fixedly assembled on the output end of the linear drive motor matches the inner side of the gear ring.

3. The device for grinding and superfinishing the rolling surface of ceramic rollers according to claim 1, characterized in that: The inner grinding ring split assembly includes a second gear, a rack, a slider, a slide rail, a split grinding block and a split grinding block substrate. The slide rail is fixedly set on the base according to the linear motion direction of the grinding ring split assembly. The slider is matched and assembled on the slide rail. The split grinding block substrate is fixedly set on the upper end surface of the slider. The split grinding block is set at the outer end of the split grinding block substrate. The rack is fixedly assembled on the side end surface of the slider. The second gear is matched and arranged between the rack and the linear drive assembly.

4. The device for grinding and superfinishing the rolling surface of ceramic rollers according to claim 3, characterized in that: The outer end face of the split grinding block is arc-shaped, and the outer end faces of multiple split grinding blocks are connected to each other to form a complete inner grinding ring working surface. The inner end face of the split grinding block is fixedly connected to the first cylinder radially arranged with the rotating shaft as the center. The outer end of the split grinding block substrate matches the split grinding block, and the inner end of the split grinding block substrate is triangular.

5. The device for grinding and superfinishing the rolling surface of ceramic rollers according to claim 1, characterized in that: The annular trough body of the support collection trough is concave downward, and an annular support frame is coaxially arranged in the annular trough body. The support frame matches the annular gap between the inner grinding mechanism and the outer grinding ring in the vertical direction. An abrasive outlet is arranged at the bottom of the annular trough body, and multiple fastening protrusions are circumferentially distributed on the top of the support collection trough. Fastening holes are arranged on the fastening protrusions in a one-to-one correspondence. The support collection trough is fixedly connected to the top of the box body by assembling the fastening holes and the fasteners.

6. The device for grinding and superfinishing the rolling surface of ceramic rollers according to claim 1, characterized in that: The drive module includes a drive motor, a belt transmission assembly, a reducer, a third gear and a pull plate. One end of the belt transmission assembly is connected to the output end of the drive motor, and the other end of the belt transmission assembly is connected to the input end of the reducer. The third gear and the pull plate are fixedly arranged at the output end of the reducer from bottom to top.

7. The device for grinding and superfinishing the rolling surface of ceramic rollers according to claim 6, characterized in that: A support seat is set at the bottom of the box body supporting the shell, the lower end of the rotating shaft of the internal grinding mechanism is coaxially assembled in the support seat, the upper end of the rotating shaft is assembled and connected to the single-arm bracket supporting the shell, and the rotating shaft in the box body is provided with a rotating shaft box and a fourth gear from top to bottom.

8. The device for grinding and superfinishing the rolling surface of ceramic rollers according to claim 1, characterized in that: The abrasive circulation module includes an abrasive drip irrigation pipe, an abrasive delivery pipe, an abrasive delivery pump, an abrasive collection box and an abrasive collection pipe. The abrasive collection box is fixedly arranged in the box body. The abrasive drip irrigation pipe, which is arranged above the grinding module and is in an open ring shape as a whole, is connected to the abrasive collection box through the abrasive delivery pipe and the abrasive delivery pump in turn. One end of the abrasive collection pipe is connected to the support collection tank, and the other end of the abrasive collection pipe is connected to the abrasive collection box.

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