Silicon carbide ceramic membrane processing device

Abstract

The silicon carbide ceramic membrane machining device comprises a workbench and a grinding wheel which is arranged on the workbench and used for polishing the surface of a to-be-machined part, and the workbench is provided with a diameter adapting structure used for polishing the cylindrical to-be-machined part with the irregular outer diameter. The diameter adapting structure comprises a bearing seat fixedly connected to the workbench and used for supporting a to-be-machined part, the two horizontal sides of the bearing seat are each provided with an inner supporting assembly, each inner supporting assembly comprises a side frame fixedly connected to the workbench, and each side frame is provided with a transverse moving assembly for driving the corresponding arc-shaped pressing plate to penetrate into an inner hole of the to-be-machined part. By arranging the diameter adapting structure, silicon carbide ceramic membrane parts of different types and sizes, especially cylindrical parts with irregular outer diameters, can be effectively treated, and by achieving tight attachment of the grinding wheel and the peripheral face of the part to be machined, uniform distribution of grinding force in the polishing process is ensured, and the surface smoothness and polishing consistency are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of polishing equipment, in particular to a silicon carbide ceramic film processing device. Background Art

[0002] Silicon carbide ceramic membranes have gained wide attention and application in water treatment, gas separation, high-temperature filtration and other fields due to their excellent high-temperature stability, corrosion resistance, high mechanical strength and good wear resistance. Compared with traditional polymer membranes or ceramic membranes such as alumina and titanium dioxide, silicon carbide ceramic membranes can not only maintain stable performance under higher operating temperatures and harsh corrosive environments, but also achieve higher flux and longer service life.

[0003] The production process of silicon carbide ceramic membranes is relatively complex, including multiple steps such as raw material powder preparation, molding, sintering, surface treatment (such as impregnation, coating) and finishing. Especially in the subsequent processing steps of membrane elements or related parts, how to ensure the structural uniformity, pore size distribution stability and surface quality of the membrane surface has always been the focus of process technicians. In this process, it is very necessary to carry out reasonable and effective surface finishing methods. Among them, polishing is an important link to ensure the surface quality of membrane components and achieve stable performance.

[0004] Chinese patent (Announcement No.: CN114211330B), the solution specifically includes a base and an operating table, a placing platform is installed in the operating table, and clamping mechanisms are set at both ends of the placing platform, and adjustment mechanisms are set on both sides of the clamping mechanism, the placing platform includes a placing table, a guide groove is set in the placing table, and a guide rod is set in the guide groove, and a buffer spring and a first telescope are placed on both sides of the guide rod, respectively, and a matching groove is opened on the outside of the guide groove, and an ejection hole is set outside the matching groove. During the use of the silicon carbide ceramic film processing equipment, the clamping mechanism and the adjustment mechanism are used in coordination, without affecting the clamping effect of the ceramic film, and the ceramic film can be effectively prevented from being affected by the clamping tool, resulting in the problem of grinding dead angles during the grinding process.

[0005] Chinese patent (Announcement No.: CN116442035A), the solution specifically includes a box; a first grinding disc, which is installed on the top of the box and rotates around a vertical axis, and is used to grind the upper surface of the ceramic membrane; a second grinding disc, which is installed on the bottom of the box and rotates around a vertical axis, and is used to carry and grind the lower surface of the ceramic membrane; a first adsorption piece, which is installed in the box and slides vertically and has a first downward adsorption port, and is used to adsorb and limit the upper surface of the ceramic membrane; a second adsorption piece, which is installed in the box and slides vertically and has a second upward adsorption port, and is used to adsorb and limit the lower surface of the ceramic membrane; when the first adsorption piece adsorbs the upper surface of the ceramic membrane, the second grinding disc works to grind the lower surface of the ceramic membrane; when the second adsorption piece adsorbs the lower surface of the ceramic membrane, the first grinding disc works to grind the upper surface of the ceramic membrane. This application can effectively improve the compactness of the equipment and reduce the space occupied by the equipment.

[0006] In the processing of silicon carbide ceramic membrane parts, due to the diversity of part types and sizes, especially in the polishing process, existing polishing equipment is difficult to effectively adapt to parts of various shapes and sizes. Specifically, the polishing device in the above patent can handle plate-shaped parts well, but it performs poorly when polishing the outer surface of cylindrical structural parts, especially for cylindrical parts with irregular changes in outer diameter. It is difficult for traditional equipment to achieve uniform and efficient polishing. This makes it difficult for cylindrical parts of different sizes and shapes to obtain comprehensive and consistent surface quality during the polishing process, which in turn affects the overall processing efficiency and product performance. Therefore, a silicon carbide ceramic membrane processing device is proposed. Summary of the invention

[0007] The purpose of the present invention is to provide a silicon carbide ceramic film processing device, which has the advantages of comprehensively polishing cylindrical parts with irregular outer diameters and improving processing efficiency, and solves the problem that it is difficult to achieve uniform and efficient polishing of cylindrical parts with different diameters.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solutions: a silicon carbide ceramic film processing device, comprising a workbench and a grinding wheel thereon for polishing the surface of a part to be processed, wherein the workbench is provided with a diameter-adapting structure for polishing a cylindrical part to be processed with an irregular outer diameter; The diameter-adapting structure includes a support seat fixedly connected to the workbench and used to support the part to be processed, a group of inner support components are respectively provided on the horizontal sides of the support seat, and the inner support components include a side frame fixedly connected to the workbench, and a plurality of groups of arc-shaped pressing plates arranged in a circular array are provided on the side frame, and the plurality of groups of arc-shaped pressing plates move synchronously toward or away from each other, and the arc-shaped pressing plates are in compression contact with the inner surface of the part to be processed, and a transverse movement component is provided on the side frame to drive the plurality of groups of arc-shaped pressing plates to penetrate into the inner hole of the part to be processed; The workbench is fixedly connected with a transverse slide frame, the transverse slide frame is provided with a unidirectional rod that can move freely in the horizontal direction, the grinding wheel is fixedly arranged on the unidirectional rod, and the workbench is provided with a shifting assembly that drives the unidirectional rod to adapt to different outer diameters of the parts to be processed; The edge frame is provided with a circumferential component for driving multiple groups of arc-shaped pressing plates and the parts to be processed to rotate synchronously.

[0009] Preferably, the inner support assembly comprises a cross inner frame arranged on the side frame, a cross rod freely moving in the horizontal direction is arranged on the cross inner frame, a plurality of rectangular frames arranged in a circular array are slidably sleeved on the cross rod, an upper connecting rod is fixedly rotated on the rectangular frame, and one end of the upper connecting rod away from the rectangular frame is fixedly rotated on the cross inner frame; The cross inner frame is provided with a plurality of groups of supporting rods fixedly connected to the arc pressure plate, and a groove body for sliding connection of the supporting rods is opened on the cross inner frame, a lower connecting rod is fixedly rotated on one side of the rectangular frame away from the upper connecting rod, and one end of the lower connecting rod away from the rectangular frame is fixedly rotated on the supporting rod.

[0010] Preferably, the circumferential component comprises a hollow ratchet disk driven by a motor and freely rotating in a vertical direction, the hollow ratchet disk is fixedly rotated on the edge frame, and multiple groups of inner ratchet pawls and multiple groups of outer ratchet pawls in an annular array are fixedly rotated on the hollow ratchet disk, the inner ratchet pawls are meshedly connected with the ratchet wheel, the outer ratchet pawls are meshedly connected with the inner ratchet disk, and the inner ratchet disk and the ratchet wheel are both fixedly rotated on the edge frame; The ratchet wheel is coaxially fixed with a spline shaft, the cross rod is coaxially fixed with an inner key cylinder, and both the cross rod and the inner key cylinder are slidably sleeved on the spline shaft; The cross inner frame is provided with a round hole for the inner key cylinder to slide through.

[0011] Preferably, the transverse movement assembly includes an incomplete single position disk and an incomplete coincident disk which are located on both sides of the inner key cylinder and rotate synchronously in the horizontal direction. The incomplete coincident disk is in sliding contact with the inner cross frame. A blocking disk is fixedly provided on the inner key cylinder. The incomplete single position disk and the blocking disk are in sliding contact with each other.

[0012] The outer circumferential surface of the inner key cylinder is sleeved with a return spring, and the two ends of the return spring are respectively fixedly connected to the cross inner frame and the blocking plate.

[0013] Preferably, the incomplete coinciding disk and the incomplete single-position disk are both fixedly rotated on the side frame, a driving wheel is coaxially fixed on the incomplete coinciding disk, and a driven wheel is coaxially fixed on the incomplete single-position disk, and the driving wheel and the driven wheel are connected by a belt drive; The driving wheel is transmission connected to the inner ratchet disc.

[0014] Preferably, the shifting assembly comprises a base plate fixed with bolts between the workbench, a horizontal sliding seat is provided on the horizontal sliding frame and moves horizontally synchronously with the unidirectional rod, and a second groove body is provided on the horizontal sliding seat for the unidirectional rod to slide through; A positioning pin is fixedly connected to a side of the unidirectional rod facing the base plate, and the base plate is provided with two groups of guide grooves and one group of unidirectional grooves for the slidable connection of the positioning pin.

[0015] Preferably, the two groups of guide grooves are respectively connected to one end of the same-direction grooves, and the structural shape of the same-direction grooves is consistent with the shape of the diameter cross-section of the part to be processed.

[0016] Preferably, a reciprocating screw rod which is fixedly rotated on the horizontal slide frame and is transmission-connected to the ratchet wheel, the reciprocating screw rod and the horizontal slide seat are threadedly connected, and a receiving groove for the horizontal sliding seat to slide horizontally is provided on the horizontal slide frame.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can effectively process silicon carbide ceramic membrane parts of different types and sizes, especially cylindrical parts with irregular outer diameters, by setting up an adaptive diameter structure. By achieving close fit between the grinding wheel and the outer peripheral surface of the part to be processed, the uniform distribution of grinding force during the polishing process is ensured, the surface finish and polishing consistency are significantly improved, and the quality requirements of high-precision silicon carbide ceramic membranes are met.

[0018] 2. The present invention provides a shifting component and a circumferential component to drive the workpiece to be processed to rotate while adapting to the horizontal movement of the grinding wheel. Under the synergistic effect of the two, it is ensured that the grinding wheel can closely fit the outer peripheral surface of the workpiece to be processed, thereby achieving comprehensive polishing from one end to the other, avoiding missing areas, and improving the comprehensiveness of polishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the components of the edge frame of the present invention; Figure 3 This is a schematic diagram of the components of the cross of the present invention; Figure 4 This is a schematic diagram of the components where the inner key cylinder of the present invention is located; Figure 5 This is a schematic diagram of the components where the incompletely aligned disk of the present invention is located; Figure 6 This is a schematic diagram of the components where the unidirectional grooves of the present invention are located; Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle; Figure 8 It is a schematic diagram of the parts where the hollow ratchet disc of the present invention is located; Fig. 9 For the present invention Figure 8 Enlarged view of point A in the middle.

[0020] In the figure: 1. workbench; 2. parts to be processed; 3. side frame; 4. cross inner frame; 5. cross rod; 6. rectangular frame; 7. upper connecting rod; 8. lower connecting rod; 9. holding rod; 10. arc pressure plate; 11. spline shaft; 12. inner key cylinder; 13. return spring; 14. blocking plate; 15. incomplete aligning plate; 16. incomplete single-position plate; 17. driven wheel; 18. driving wheel; 19. supporting seat; 20. hollow ratchet plate; 21. inner ratchet plate; 22. ratchet; 23. inner pawl; 24. outer pawl; 25. reciprocating screw; 26. horizontal slide seat; 27. unidirectional rod; 28. positioning pin; 29. ​​base plate; 30. unidirectional groove; 31. guide groove; 32. horizontal slide frame. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 9 The present invention provides a technical solution: a silicon carbide ceramic film processing device, comprising a workbench 1 and a grinding wheel thereon for polishing the surface of a part to be processed 2, wherein the workbench 1 is provided with a diameter-adapting structure for polishing a cylindrical part to be processed 2 with an irregular outer diameter; The diameter-adapting structure includes a support seat 19 fixedly connected to the workbench 1 and used to support the part 2 to be processed. A group of inner support components are respectively provided on the horizontal sides of the support seat 19. The inner support components include an edge frame 3 fixedly connected to the workbench 1. The edge frame 3 is provided with a plurality of groups of arc-shaped pressing plates 10 arranged in a circular array. The plurality of groups of arc-shaped pressing plates 10 move synchronously toward or away from each other, and the arc-shaped pressing plates 10 are in compression contact with the inner surface of the part 2 to be processed. The edge frame 3 is provided with a transverse movement component for driving the plurality of groups of arc-shaped pressing plates 10 to penetrate into the inner hole of the part 2 to be processed; The workbench 1 is fixedly connected with a transverse slide 32, on which a unidirectional rod 27 that can freely move in the horizontal direction is provided, and a grinding wheel is fixedly arranged on the unidirectional rod 27, and a shifting assembly that drives the unidirectional rod 27 to adapt to different outer diameters of the parts 2 to be processed is provided on the workbench 1; The edge frame 3 is provided with a circumferential component for driving multiple groups of arc-shaped pressure plates 10 and the workpiece 2 to be processed to rotate synchronously.

[0023] like Figure 1-Figure 5As shown, when polishing a cylindrical part 2 to be processed with an irregular outer diameter, the part 2 to be processed is placed on a supporting seat 19, and the part 2 to be processed is clamped and fixed by two groups of inner support assemblies arranged at the end of the supporting seat 19, wherein, driven by the transverse movement assembly, the side frame 3 and the multiple groups of arc pressure plates 10 arranged thereon can move in the horizontal direction, thereby allowing the multiple groups of arc pressure plates 10 to penetrate into the inner hole of the part 2 to be processed.

[0024] At the same time, driven by the inner support component, multiple groups of arc pressure plates 10 move synchronously in opposite directions in the vertical direction, so that the multiple groups of arc pressure plates 10 can be squeezed into contact with the inner wall of the part to be processed 2, and subsequently, driven by the circumferential component, the multiple groups of arc pressure plates 10 can be driven to rotate to drive the part to be processed 2 to rotate in the vertical direction.

[0025] It should be noted that, in actual use, when the part to be processed 2 is placed on the supporting seat 19, the height of its axis is lower than the center line of the circular array presented by the multiple groups of arc pressure plates 10, and then when the multiple groups of arc pressure plates 10 move away from each other to support the inner wall of the part to be processed 2, the horizontal height of the part to be processed 2 can be slightly raised so that it no longer contacts the supporting seat 19 below, so that the supporting seat 19 can support and preliminarily position the part to be processed 2 before polishing, and when the part to be processed 2 is in the polishing operation, it can avoid contact with the outer surface of the part to be processed 2 and generate additional rotational resistance, thereby ensuring the smooth progress of the polishing operation and guaranteeing the polishing quality.

[0026] Among them, the unidirectional rod 27 drives the grinding wheel set at the end to move in the horizontal direction, and then polishes the outer peripheral surface of the part 2 to be processed from one end to the other end, and under the drive of the shifting component, the unidirectional rod 27 can move in the horizontal direction according to the change of the cross-sectional size of the part 2 to be processed, thereby ensuring that the grinding wheel can always fit the outer peripheral surface of the part 2 to be processed, and the distance between the grinding wheel and the central axis of the part 2 to be processed can adapt to the change according to the cross-sectional size of the part 2 to be processed, so as to ensure the comprehensiveness of the polishing of the outer peripheral surface of the part 2 to be processed, thereby improving the polishing efficiency.

[0027] The shifting assembly ensures the uniform distribution of grinding force during the polishing process by achieving a close fit between the grinding wheel and the outer peripheral surface of the part 2 to be processed, thereby improving the surface finish and polishing uniformity and meeting the quality requirements of high-precision silicon carbide ceramic films.

[0028] In one of the more preferred embodiments, the inner support assembly comprises a cross inner frame 4 arranged on the side frame 3, a cross rod 5 freely moving in the horizontal direction is provided on the cross inner frame 4, a plurality of rectangular frames 6 arranged in a circular array are slidably sleeved on the cross rod 5, an upper connecting rod 7 is fixedly rotated on the rectangular frame 6, and one end of the upper connecting rod 7 away from the rectangular frame 6 is fixedly rotated on the cross inner frame 4; The cross inner frame 4 is provided with a plurality of groups of supporting rods 9 fixedly connected to the arc pressure plate 10, and a groove body for sliding connection of the supporting rods 9 is opened on the cross inner frame 4, and a lower connecting rod 8 is fixedly rotated on the side of the rectangular frame 6 away from the upper connecting rod 7, and the end of the lower connecting rod 8 away from the rectangular frame 6 is fixedly rotated on the supporting rod 9.

[0029] like Figure 2-Figure 5 As shown, when the cross rod 5 moves in the horizontal direction toward the side away from the arc pressure plate 10, under the restriction of the upper connecting rod 7, the multiple groups of rectangular frames 6 slidably mounted thereon can slide on the cross rod 5, thereby driving the lower connecting rod 8 arranged thereon to deflect, wherein the two ends of the lower connecting rod 8 are respectively rotated on the rectangular frame 6 and the supporting rod 9 on a fixed axis. Therefore, when the lower connecting rod 8 is deflected, the supporting rod 9 can be driven to slide on the inner frame 4 of the cross, thereby driving the multiple groups of arc pressure plates 10 fixedly connected to each other by a group of supporting rods 9 to move synchronously toward or away from each other in the vertical direction.

[0030] At the same time, when driven by the transverse movement component to extend multiple groups of arc pressure plates 10 into the inner hole of the part 2 to be processed, during this process, the side frames 3 of the two groups of inner support components move toward each other, and the annular side walls of the part 2 to be processed are supported by the side frames 3 to determine the position of the part 2 to be processed, so that the part 2 to be processed can be in the middle position of the two groups of inner support components, and then subsequently, driven by the inner support component, the multiple groups of arc pressure plates 10 can be pressed against the inner wall of the part 2 to be processed, so as to achieve the purpose of lateral position limitation and height limitation of the part 2 to be processed, so as to avoid processing quality defects caused by position deviation during polishing of the part 2 to be processed.

[0031] Further, the circumferential assembly includes a hollow ratchet disc 20 driven by a motor and freely rotating in a vertical direction, the hollow ratchet disc 20 is fixedly rotated on the edge frame 3, and the hollow ratchet disc 20 is fixedly rotated with multiple groups of inner ratchet pawls 23 and multiple groups of outer ratchet pawls 24 in a circular array, the inner ratchet pawls 23 are meshedly connected with the ratchet wheel 22, the outer ratchet pawls 24 are meshedly connected with the inner ratchet disc 21, and the inner ratchet disc 21 and the ratchet wheel 22 are both fixedly rotated on the edge frame 3; The ratchet 22 is coaxially fixed with the spline shaft 11, the cross rod 5 is coaxially fixed with the inner key cylinder 12, and both the cross rod 5 and the inner key cylinder 12 are slidably sleeved on the spline shaft 11. The ratchet 22 is coaxially fixed with the spline shaft 11, the cross rod 5 is coaxially fixed with the inner key cylinder 12, and both the cross rod 5 and the inner key cylinder 12 are slidably sleeved on the spline shaft 11; The cross inner frame 4 is provided with a round hole for the inner key cylinder 12 to slide through. The cross inner frame 4 is provided with a round hole for the inner key cylinder 12 to slide through.

[0032] like Figure 1 , Figure 3 , Figure 8 and Fig. 9 As shown, the hollow ratchet disc 20 is driven to rotate freely in the vertical direction by a motor fixed on the edge frame 3, wherein, when the hollow ratchet disc 20 rotates forward, the outer pawl 24 thereon is engaged with the inner ratchet disc 21, and at this time the inner pawl 23 is not engaged with the ratchet wheel 22, so when the hollow ratchet disc 20 rotates forward, only the inner ratchet disc 21 will be driven to rotate, on the contrary, when the hollow ratchet disc 20 rotates reversely, the ratchet wheel 22 can be driven to rotate in the vertical direction through the inner pawl 23 without driving the inner ratchet disc 21 to rotate.

[0033] It should be noted that the hollow ratchet disk 20 is respectively provided with a torsion spring for driving the outer pawl 24 and the inner pawl 23 to return to the initial deflected state. The torsion spring is an existing device and a technical means well known to those skilled in the art, so it is not shown in the figure. Under the action of the two sets of torsion springs, the inner ratchet disk 21 and the ratchet wheel 22 can realize the alternating rotation process when the hollow ratchet disk 20 turns differently.

[0034] Among them, the ratchet 22 is coaxially fixed with the spline shaft 11, and the spline shaft 11 is slidably sleeved with an inner key cylinder 12 and a cross rod 5. Therefore, when the ratchet 22 rotates, it can drive the cross rod 5 and the inner key cylinder 12 to rotate synchronously, and then drive the cross inner frame 4, the upper connecting rod 7 and multiple groups of arc pressure plates 10 to rotate synchronously, and under the drive of the inner support assembly, the multiple groups of arc pressure plates 10 are pressed against the inner wall of the part to be processed 2, so that the part to be processed 2 can be driven to rotate in the vertical direction through the rotation process of the ratchet 22 and the spline shaft 11, thereby ensuring that the entire outer circumference of the part to be processed 2 can be evenly polished, which not only improves the comprehensiveness of the polishing, but also reduces the generation of missed areas.

[0035] On the basis of the embodiment of the circumferential assembly, the transverse movement assembly includes an incomplete single disk 16 and an incomplete coinciding disk 15 which are located on both sides of the inner key cylinder 12 and rotate synchronously in the horizontal direction, the incomplete coinciding disk 15 is in sliding contact with the inner cross frame 4, a blocking disk 14 is fixedly sleeved on the inner key cylinder 12, and the incomplete single disk 16 is in sliding contact with the blocking disk 14; The outer circumference of the inner key cylinder 12 is sleeved with a return spring 13 , and two ends of the return spring 13 are fixedly connected to the cross inner frame 4 and the blocking plate 14 respectively.

[0036] The incomplete coinciding disc 15 and the incomplete single-position disc 16 are both rotatable on the side frame 3, a driving wheel 18 is coaxially fixed on the incomplete coinciding disc 15, and a driven wheel 17 is coaxially fixed on the incomplete single-position disc 16, and the driving wheel 18 and the driven wheel 17 are connected by a belt transmission; The driving wheel 18 is transmission-connected to the inner ratchet disc 21 .

[0037] like Figure 2 , Figure 4 and Figure 5 As shown, when the inner ratchet disk 21 rotates in the vertical direction, it can drive the driving wheel 18 connected to it to rotate synchronously, and the driving wheel 18 is connected to the incomplete single disk 16 through a belt, thereby driving the incomplete single disk 15 and the incomplete single disk 16 to rotate synchronously. It should be noted that when the incomplete single disk 15 and the incomplete single disk 16 rotate synchronously, the incomplete single disk 15 first contacts the cross inner frame 4, and as the incomplete single disk 15 rotates, the cross inner frame 4 is pushed to move horizontally, and a reset spring 13 is provided between the cross inner frame 4 and the blocking disk 14, and the reset spring 13 drives the inner key cylinder 12 to move synchronously horizontally, so that the cross inner frame 4 and the multiple groups of arc pressure plates 10 arranged thereon can move toward the direction of the part 2 to be processed, and the multiple groups of arc pressure plates 10 can penetrate into the inner hole of the part 2 to be processed.

[0038] At the same time, as the incomplete single-position disk 16 continues to rotate, the incomplete single-position disk 16 contacts the blocking disk 14, and at this time the outer peripheral surface of the incomplete single-position disk 15 is still in contact with the cross inner frame 4, so the position of the cross inner frame 4 will not change, and under the push of the incomplete single-position disk 16, the blocking disk 14 can move away from the cross inner frame 4, and cause the cross inner frame 4 to undergo compression deformation, so as to drive the blocking disk 14 and the inner key cylinder 12 to slide on the cross inner frame 4, thereby driving the cross rod 5 and the cross inner frame 4 to slide relative to each other, and then driving the multiple groups of arc pressure plates 10 to move away from each other in the vertical direction, and finally making the arc pressure plates 10 press and contact with the inner hole of the part 2 to be processed.

[0039] Subsequently, the ratchet wheel 22 is driven to rotate by the change in the direction of the hollow ratchet plate 20, thereby driving the circumferential component and the shifting component to operate, thereby realizing the polishing operation of the outer peripheral surface of the workpiece 2 to be processed. After the polishing work is completed, the inner ratchet plate 21 is driven to rotate again by the hollow ratchet plate 20 to drive the incomplete aligning plate 15 and the incomplete single plate 16 to continue to rotate. At this time, the incomplete aligning plate 15 is disengaged from the cross inner frame 4, but the incomplete single plate 16 is still in conflict with the blocking plate 14, and then when the reset spring 13 restores its elastic deformation, it can only drive the cross inner frame 4 and the components thereon to move toward the blocking plate 14, and in the subsequent rotation of the incomplete single plate 16, the incomplete single plate 16 and the blocking plate 14 are also in a disengaged state.

[0040] Therefore, by setting the incomplete coinciding disk 15 and the incomplete single-position disk 16, it is possible to drive multiple groups of arc pressure plates 10 to first penetrate into the inner hole of the part to be processed 2 and then extend, so as to achieve the purpose of supporting the inner wall of the part to be processed 2, and then subsequently drive the part to be processed 2 to rotate through the multiple groups of arc pressure plates 10 through the circumferential component, and cooperate with the shifting component to achieve comprehensive polishing of the outer peripheral surface of the cylindrical part to be processed 2 with irregular outer diameter, thereby improving the polishing efficiency, and the subsequent continuous rotation of the incomplete coinciding disk 15 and the incomplete single-position disk 16 drives the cross inner frame 4 and the components thereon to return to the initial position in turn, thereby completing the release process of the part to be processed 2 after polishing, so that it can be on the supporting seat 19 again after polishing, thereby realizing the process of automatic unloading, and achieving the purpose of simplifying the processing steps.

[0041] On the basis of the embodiment of the transverse moving assembly, the transverse moving assembly includes a base plate 29 fixed with bolts between the workbench 1, a transverse sliding seat 26 which moves horizontally synchronously with the unidirectional rod 27 is provided on the transverse sliding frame 32, and a groove body 2 is provided on the transverse sliding seat 26 for the unidirectional rod 27 to slide through; A positioning pin 28 is fixedly connected to one side of the unidirectional rod 27 facing the base plate 29 , and the base plate 29 is provided with two groups of guide grooves 31 and one group of unidirectional grooves 30 for the slidable connection of the positioning pin 28 .

[0042] The two groups of guide grooves 31 are respectively connected to one end of the same-direction groove 30 , and the structural shape of the same-direction groove 30 is consistent with the shape of the diameter cross section of the part 2 to be processed.

[0043] A reciprocating screw rod 25 which is connected to the ratchet wheel 22 and rotates on the horizontal slide frame 32 is provided. The reciprocating screw rod 25 and the horizontal slide seat 26 are threadedly connected. A receiving groove for the horizontal slide seat 26 to slide horizontally is provided on the horizontal slide frame 32.

[0044] like Figure 1 , Figure 6 and Figure 7As shown, when the ratchet 22 rotates driven by the hollow ratchet disc 20, it can drive the reciprocating screw 25 which is consistent with its rotation direction and transmission connected to it to rotate synchronously. When the reciprocating screw 25 rotates, it can drive the horizontal sliding seat 26 threadedly connected to it to move in the horizontal longitudinal direction, thereby causing the same-direction rod 27 set thereto to move synchronously in the horizontal longitudinal direction.

[0045] At the same time, the positioning pin 28 fixed on the unidirectional rod 27 is slidably connected to the base plate 29 through two sets of guide grooves 31 and the unidirectional grooves 30. When the unidirectional rod 27 moves in the horizontal longitudinal direction, its horizontal lateral position will change due to the restriction of the guide grooves 31 and the unidirectional grooves 30. When the unidirectional rod 27 slides on the guide grooves 31, the grinding wheel set at the end of the unidirectional rod 27 can approach or move away from the outer peripheral surface of the part 2 to be processed. In the initial state, the grinding wheel does not contact the outer peripheral surface of the part 2 to be processed. When the grinding wheel moves toward the outer peripheral surface of the part 2 to be processed, it can quickly contact the part 2 to be processed. At this time, the grinding wheel is at one end of the part 2 to be processed and enters the working state.

[0046] As the unidirectional rod 27 moves in the horizontal longitudinal direction, the horizontal lateral position of the grinding wheel at its end is restricted by the shape of the unidirectional groove 30, wherein the structural shape of the unidirectional groove 30 is adapted to the shape of the diameter cross-section of the part 2 to be processed, so that the grinding wheel can always be in contact with the outer peripheral surface of the part 2 to be processed when following the horizontal sliding seat 26 to move in the horizontal longitudinal direction, thereby always polishing its outer peripheral surface.

[0047] After the polishing operation is completed, the positioning pin 28 slides on another set of guide grooves 31, thereby driving the grinding wheel away from the workpiece 2 to be processed, thereby avoiding the existence of the grinding wheel after the polishing operation from hindering the unloading process of the workpiece 2 to be processed, and also providing a larger space for the subsequent placement process of the workpiece 2 to be processed on the supporting seat 19, so as to facilitate the subsequent loading process.

[0048] It should be noted that in actual use, if polishing operations are performed on different parts, the spacing between the two sets of internal support assemblies can be adjusted according to the length of the parts, and the same-direction grooves 30 matching the shape of the processed parts can be replaced, and the height of the support seat 19 and the arc-shaped pressure plate 10 adapted to the processed parts can be appropriately changed, so as to adapt to the polishing process of cylindrical parts of different shapes and different batches.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A silicon carbide ceramic film processing device, comprising a workbench (1) and a grinding wheel thereon for polishing the surface of a part to be processed (2), characterized in that: The workbench (1) is provided with a diameter-adapting structure for polishing a cylindrical part (2) to be processed with an irregular outer diameter; The diameter-adapting structure comprises a support seat (19) fixedly connected to the workbench (1) and used to support the part to be processed (2), a group of internal support components are respectively provided on the horizontal sides of the support seat (19), and the internal support components comprise a side frame (3) fixedly connected to the workbench (1), a plurality of groups of arc-shaped pressure plates (10) arranged in a circular array are provided on the side frame (3), the plurality of groups of arc-shaped pressure plates (10) move synchronously towards or away from each other, and the arc-shaped pressure plates (10) are in compression contact with the inner surface of the part to be processed (2), and a transverse movement component is provided on the side frame (3) for driving the plurality of groups of arc-shaped pressure plates (10) to penetrate into the inner hole of the part to be processed (2).

2. A silicon carbide ceramic film processing device according to claim 1, characterized in that: The workbench (1) is fixedly connected to a transverse slide frame (32), the transverse slide frame (32) is provided with a unidirectional rod (27) that can move freely in the horizontal direction, the grinding wheel is fixedly arranged on the unidirectional rod (27), and the workbench (1) is provided with a shifting assembly that drives the unidirectional rod (27) to adapt to different outer diameters of the parts (2) to be processed.

3. A silicon carbide ceramic film processing device according to claim 2, characterized in that: The edge frame (3) is provided with a circumferential component for driving the plurality of arc-shaped pressing plates (10) and the parts to be processed (2) to rotate synchronously; The inner support assembly comprises a cross inner frame (4) arranged on the side frame (3), a cross rod (5) freely movable in the horizontal direction is arranged on the cross inner frame (4), a plurality of rectangular frames (6) arranged in a circular array are slidably sleeved on the cross rod (5), an upper connecting rod (7) is fixedly rotatable on the rectangular frame (6), and one end of the upper connecting rod (7) away from the rectangular frame (6) is fixedly rotatable on the cross inner frame (4); The cross inner frame (4) is provided with a plurality of groups of supporting rods (9) fixedly connected to the arc-shaped pressure plate (10), and a groove body for sliding connection of the supporting rods (9) is opened on the cross inner frame (4), and a lower connecting rod (8) is fixedly rotated on a side of the rectangular frame (6) away from the upper connecting rod (7), and an end of the lower connecting rod (8) away from the rectangular frame (6) is fixedly rotated on the supporting rod (9); The circumferential component comprises a hollow ratchet disc (20) driven by a motor and freely rotatable in a vertical direction, the hollow ratchet disc (20) being fixedly rotatable on a side frame (3), and the hollow ratchet disc (20) being fixedly rotatable with a plurality of groups of inner ratchet pawls (23) and a plurality of groups of outer ratchet pawls (24) in a circular array, the inner ratchet pawls (23) being meshedly connected with a ratchet wheel (22), the outer ratchet pawls (24) being meshedly connected with an inner ratchet disc (21), and the inner ratchet disc (21) and the ratchet wheel (22) both being fixedly rotatable on the side frame (3); The ratchet wheel (22) is coaxially fixed with a spline shaft (11), an inner key cylinder (12) is coaxially fixed on the cross rod (5), and both the cross rod (5) and the inner key cylinder (12) are slidably sleeved on the spline shaft (11); The cross inner frame (4) is provided with a circular hole for the inner key cylinder (12) to slide through.

4. A silicon carbide ceramic film processing device according to claim 3, characterized in that: The transverse movement assembly comprises an incomplete single-position disk (16) and an incomplete symmetric disk (15) which are respectively located on both sides of the inner key cylinder (12) and rotate synchronously in the horizontal direction, the incomplete symmetric disk (15) is in sliding contact with the inner cross frame (4), a blocking disk (14) is fixedly sleeved on the inner key cylinder (12), and the incomplete single-position disk (16) and the blocking disk (14) are in sliding contact with each other; The outer circumferential surface of the inner key cylinder (12) is sleeved with a return spring (13), and the two ends of the return spring (13) are respectively fixedly connected to the cross inner frame (4) and the blocking plate (14).

5. A silicon carbide ceramic film processing device according to claim 4, characterized in that: The incomplete coinciding disk (15) and the incomplete single-position disk (16) are both rotatably mounted on the side frame (3), a driving wheel (18) is coaxially fixed on the incomplete coinciding disk (15), and a driven wheel (17) is coaxially fixed on the incomplete single-position disk (16), and the driving wheel (18) and the driven wheel (17) are connected via a belt drive. The driving wheel (18) is transmission-connected to the inner ratchet disc (21).

6. The silicon carbide ceramic film processing device according to claim 5, characterized in that: The shifting assembly comprises a base plate (29) fixed to the workbench (1) by bolts, a horizontal slide seat (26) which moves horizontally synchronously with the unidirectional rod (27) is provided on the horizontal slide frame (32), and a second groove body is provided on the horizontal slide seat (26) for the unidirectional rod (27) to slide through; A positioning pin (28) is fixedly connected to one side of the unidirectional rod (27) facing the base plate (29), and the base plate (29) is provided with two groups of guide grooves (31) and a group of unidirectional grooves (30) for sliding connection of the positioning pin (28).

7. The silicon carbide ceramic film processing device according to claim 6, characterized in that: The two groups of guide grooves (31) are respectively connected to one end of the unidirectional groove (30), and the structural shape of the unidirectional groove (30) is consistent with the shape of the diameter cross section of the part (2) to be processed.

8. The silicon carbide ceramic film processing device according to claim 7, characterized in that: A reciprocating screw rod (25) which is in transmission connection with the ratchet wheel (22) is rotatably arranged on the horizontal slide frame (32), the reciprocating screw rod (25) and the horizontal slide seat (26) are threadedly connected, and a receiving groove for the horizontal slide seat (26) to slide horizontally is provided on the horizontal slide frame (32).

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