CN115122223B - Rotary polishing and grinding floating tool for machining surfaces of ferrule parts - Google Patents
Rotary polishing and grinding floating tool for machining surfaces of ferrule parts Download PDFInfo
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- CN115122223B CN115122223B CN202211059711.7A CN202211059711A CN115122223B CN 115122223 B CN115122223 B CN 115122223B CN 202211059711 A CN202211059711 A CN 202211059711A CN 115122223 B CN115122223 B CN 115122223B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/02—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels
- B24B31/0224—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels the workpieces being fitted on a support
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
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- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention belongs to the technical field of finishing processing, in particular to a rotary polishing and grinding floating tool for processing the surface of a ferrule part, which solves the technical problems in the background technology and comprises a processing container, a lower connecting disc, an upper connecting disc and at least three supporting rods, wherein the processing container comprises a processing bin and a sealing cover which are detachably connected, the lower connecting disc is fixedly connected to the center of the bottom wall of the processing bin, the upper connecting disc is fixedly connected to the center of the inner wall of the sealing cover, two ends of the supporting rods are respectively detachably and vertically connected to the upper connecting disc and the lower connecting disc, all the supporting rods are uniformly distributed on a circumference which takes the center of the bottom wall of the processing bin as the center of a circle, ferrules to be processed are sleeved outside all the supporting rods, and the radius of the ferrules is larger than that of the circumference where the supporting rods are located; the processing container is filled with polishing and grinding processing medium. Utilize the frock adds man-hour to the part, and the material volume of getting rid of is less, improves its surface quality on the basis of guaranteeing the original precision of lasso part, can realize the processing of shape in coordination polishing.
Description
Technical Field
The invention belongs to the technical field of finishing machining, and particularly relates to a rotary polishing and grinding floating tool for machining the surface of a ferrule part.
Background
The aircraft engine is in service in extreme environments of high temperature, high pressure and high rotating speed, but the reliable running performance and the service life of the aircraft engine still need to be ensured. The main shaft bearing is used as a joint of an aircraft engine rotor system and bears the mission of normal operation of the whole machine. The ferrule is a major load bearing component, and the surface quality of the ferrule directly affects the running performance and the service life of the engine. The currently used ferrule finishing processing methods include an online electrolytic grinding technology, electrochemical grinding, double electrolytic grinding, abrasive particle flow polishing based on dielectrophoresis effect and the like, and the processes have advantages and disadvantages. However, the machining of a specific simple regular surface of a part, such as an inner surface, an outer surface or a raceway, cannot realize the integral cooperative machining of all surfaces of the part.
The barreling finishing process is a typical, common and effective surface integrity manufacturing process, and can comprehensively improve multiple indexes influencing the surface integrity of parts while maintaining the precision. The Chinese Aero-Haerbin bearing Limited company provides a method (CN 202011607714.0) for finishing the inner and outer surfaces of a bearing ring by adopting a rotational flow tumbling process, wherein the inner and outer surfaces of the ring are respectively finished by two steps, and the ring is required to be fixedly clamped. However, the surface of the outer ring is marked by fixing and clamping, and the problems of poor processing uniformity of the inner surface of the outer ring, failure in reaching the standard of residual compressive stress and the like exist. Therefore, a tool device and a method capable of realizing nondestructive clamping of large and medium-sized ferrule parts are needed to realize nondestructive, integral, uniform and consistent polishing and grinding of the large and medium-sized ferrule parts and improve the surface integrity of each surface of the ferrule.
Disclosure of Invention
The invention aims to solve the technical problems that the surface of a bearing ring is poor in processing uniformity, residual compressive stress cannot reach the standard and the like due to the fact that the surface of the bearing ring is always left with traces because the bearing ring is required to be fixedly clamped when the inner surface and the outer surface of the bearing ring are finished by the barreling process at present, and provides a rotary polishing floating tool for surface processing of ring parts.
The technical means for solving the technical problems of the invention is as follows: a rotary polishing and grinding floating tool for processing the surfaces of ferrule parts comprises a processing container, a lower connecting disc, an upper connecting disc and at least three supporting rods, wherein the processing container comprises a processing bin and a sealing cover which are detachably connected, the lower connecting disc is fixedly connected to the center of the bottom wall of the processing bin, the upper connecting disc is fixedly connected to the center of the inner wall of the sealing cover, the middle point of the bottom wall of the processing bin and the middle point of the sealing cover are both positioned on the rotating axis of the floating tool, two ends of the supporting rods are respectively detachably and vertically connected to the upper connecting disc and the lower connecting disc, all the supporting rods are uniformly distributed on a circumference which takes the center of the bottom wall of the processing bin as the center of a circle, ferrules to be processed are sleeved outside all the supporting rods, and the inner diameters of the ferrules are larger than the radius of the circumferences where the supporting rods are positioned; the processing container is filled with polishing and grinding processing medium. The ferrule to be processed is hung on all the support rods, because the radius of the ferrule is larger than that of the circumference of the support rods, therefore, the floating clamping of the ferrule is realized through the single-side constraint of the support rods, and when the support rods rotate along with the processing container, the ferrule realizes continuous rotation motion through friction between the ferrule and the support rods. When in processing, a polishing and grinding medium is filled in a processing container, and the polishing and grinding medium moves along with the container to generate certain relative motion and acting force on the surfaces of the ferrules, so that the purpose of one-time finishing and processing of the surfaces of the ferrule parts is achieved. During specific practical use, the floating tool is in a vertical state, wherein the rear end part of the floating tool is the bottom wall of the processing bin, the front end part of the floating tool is the position of the sealing cover, the lower connecting disc is located on the rear side, the upper connecting disc is located on the front side, when the processing container is static, the whole ferrule is located in the vertical direction, and the ferrule is hung on the two support rods which are close to the upper supporting disc. An intermediate plane in the processing container is used as a reference plane, a rotation axis of the floating tool is used as an X axis, an intersection point of the reference plane and the rotation axis is used as an original point O, an XYZ rectangular coordinate system is established on the processing container, and the processing container can rotate around the X axis in a positive and negative mode. In order to prevent the polishing medium from being adhered to the ferrule to scratch the surface of the ferrule in the polishing process, two wedge angles are cut on the cylindrical surface of the supporting rod.
The invention relates to a use method of a rotary polishing and grinding floating tool for processing the surface of a ferrule part, which comprises the following steps:
s1, fixing a lower limiting strip on a lower connecting disc through a screw, connecting the bottom ends of all supporting rods with the lower connecting disc to form a lower connecting piece, and installing the lower connecting piece on the center of the bottom wall of a processing bin;
s2, hanging the ferrule to be processed on a support rod;
s3, fixing the upper limiting strip on the upper connecting disc through a screw, and connecting the upper connecting disc with the top end of the supporting rod through a screw;
s4, filling polishing and grinding media into the processing bin, wherein the filling amount of the polishing and grinding media is 50% -80% of the volume of the processing container;
s5, installing two O-shaped rubber sealing rings in two circumferential edge grooves on the upper end face of the processing bin, which is in contact with the sealing cover, and then closing the sealing cover;
s6, fixing the rotary polishing floating tool on the motor through a connecting piece at a rotating speed n 1 Clockwise rotating around the rotation axis for a processing time t 1 ；
S7, then rotating at the rotating speed n 2 Rotate around the rotation axis anticlockwise for a processing time t 2 ；
S8, repeating the processing step S 6 To S 7 Until finishing processing of the ferrule;
and S9, taking down the sealing cover and the upper connecting disc, and taking down the ferrule from the supporting rod.
Preferably, the upper connecting disc and the lower connecting disc are both circular ring plates, and the circle centers of the upper connecting disc and the lower connecting disc are positioned on the rotating axis of the floating tool, so that the rotating center of gravity is stable; the upper connecting disc is connected with at least three upper limiting strips positioned in the radial direction of the upper connecting disc, and the upper limiting strips are uniformly distributed along the circumferential direction of the upper connecting disc; the lower connecting disc is connected with at least three lower limiting strips located on the radial direction of the lower connecting disc, the lower limiting strips are evenly distributed along the circumferential direction of the lower connecting disc, the upper limiting strips and the lower limiting strips on the upper connecting disc and the lower connecting disc can limit the horizontal polishing and grinding range of the ferrule, the upper limiting strips and the lower limiting strips can also prevent the ferrule from directly colliding with the inner wall of a processing container, and the horizontal limiting of the ferrule can be realized through the upper limiting strips and the lower limiting strips.
Preferably, the upper limiting strip and the lower limiting strip are semi-cylindrical strip structures with the same structure and size, and the straight side walls of the upper limiting strip and the lower limiting strip are respectively tightly attached to the upper connecting disc and the lower connecting disc. The face of cylinder of going up spacing and lower spacing is towards treating the processing lasso, prevents to treat that the processing lasso is damaged or is prevented to be blocked by the damage of colliding with when the gyration, influences final processing effect.
Preferably, the inner cavity of the processing container is coated with a soft elastic adhesion layer, the axial distance between the lower connecting disc and the upper connecting disc in the processing bin is L, L = B +2a +2b, B is the thickness of the ferrule to be processed, a is the radius of the upper limiting bar or the lower limiting bar, B is the distance between two end faces of the ferrule to be processed and the corresponding upper limiting bar or the lower limiting bar respectively, and the minimum value range of B is controlled to be 30-60 mm. The setting accords with the processing requirement like this, and soft elasticity adhesive layer can set up to materials such as polyurethane or nylon, and soft elasticity adhesive layer can prevent to process the container inner wall and be ground the processing medium wearing and tearing and improve coefficient of friction by throwing.
Preferably, the processing bin is in a regular hexagonal prism shape, and the radius of an inscribed circle of the processing bin is r b ，r b =R I +R O -r-r s + h, wherein R I Is the inner diameter of the ferrule, R O Is the outer diameter of a ferrule, r is the distance between the circle center of a single supporting rod and the rotation center of the floating tool, and r is s The radius of the supporting rod is h is the distance between the lowest point of the ferrule when the ferrule is static and the lowest point of the inner wall of the processing bin, and the minimum value range of h is controlled to be 50-100 mm. The structure is reasonable, and the processing requirement is met.
Preferably, the radius of the circumcircle of the circumference where all the support rods are located is r f The distance between the circle center of the single supporting rod and the rotation center of the floating tool is r, and r is f =r+ r s In order to meet the requirement of floating clamping, 3r needs to be met s <r f <R I . The arrangement structure is reasonable.
Preferably, the support rod is made of carbon steel, and a flexible sleeve is sleeved on the outer wall of the support rod. The bracing piece adopts the form of arranging of "hard outer gentle" in, and inside adopts the carbon steel material, satisfies the requirement of bearing to the lasso, and its outside cover has flexible sleeve, avoids colliding with the internal surface of work piece in the processing, can play the guard action, and flexible sleeve can provide the required coefficient of friction of realization friction drive for waiting to process the lasso simultaneously.
Preferably, two circumferential edge grooves are formed in the upper end face, in contact with the sealing cover, of the processing bin, O-shaped rubber sealing rings are assembled in the circumferential edge grooves, and the processing bin is fixedly connected with the sealing cover through a plurality of sets of fastening bolt and nut assemblies after being closed.
Preferably, the processing bin can also be arranged into a cylindrical shape or a regular pentagonal prism, and the shape of the sealing cover is matched with that of the processing bin. The shapes of the processing bin and the sealing cover are set according to specific requirements, and other polygonal columns can be arranged.
Preferably, the polishing and grinding medium comprises a roll polishing and grinding block and a liquid medium, and the filling amount of the roll polishing and grinding block is 50-80% of the volume of the processing container. This arrangement is very reasonable.
The invention has the beneficial effects that: when the rotary polishing and grinding floating tool is used for processing parts, the material removal amount is small, the surface quality of the ferrule parts is improved on the basis of ensuring the original precision of the ferrule parts, and the shape-synergetic polishing and grinding processing can be realized; the method can effectively reduce the roughness value of the surface of the ferrule, improve the surface texture, improve the surface integrity of the ferrule, realize one-time processing of each surface, effectively improve the efficiency and reduce the cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic overall structure diagram of a rotary polishing floating tool for surface machining of a ferrule type part during ferrule machining.
Fig. 2 isbase:Sub>A sectional view taken alongbase:Sub>A-base:Sub>A of fig. 1.
Fig. 3 is a partially enlarged cross-sectional view of a support rod of the rotary polishing and floating tool according to the present invention (i.e., an enlarged view at I in fig. 1).
Fig. 4 is a surface view of the bearing ring before machining.
Fig. 5 is a surface view of the bearing ring after machining.
FIG. 6 is a surface topography map before bearing ring machining.
FIG. 7 is a surface topography of a bearing ring after machining.
In the figure: 1. processing the container; 2. a lower connecting disc; 3. an upper connecting disc; 4. a support bar; 5. a processing bin; 6. sealing the cover; 7. a ferrule is to be processed; 8. polishing and grinding the processing medium; 9. an upper limit strip; 10. a lower limit strip; 11. an O-shaped rubber sealing ring; 12. bolt nut subassembly.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A rotary polishing and grinding floating tool for processing the surface of a ferrule part comprises a processing container 1, a lower connecting disc 2, an upper connecting disc 3 and at least three supporting rods 4, wherein the processing container 1 comprises a processing bin 5 and a sealing cover 6 which are detachably connected, and the processing bin 5 is in contact with the sealing cover 6The upper end surface of the processing bin is provided with two circumferential edge grooves, O-shaped rubber sealing rings 11 are assembled in the circumferential edge grooves, the processing bin 5 and the sealing cover 6 are fixedly connected through a plurality of sets of bolt and nut assemblies 12 after being closed, each bolt and nut assembly 12 comprises a lifting eye nut and an eyelet bolt, a plurality of groups of pin shafts for assembling the bolt and nut assemblies 12 are connected to the edge, close to the front end, of the outer wall of the processing bin 5 through hinge lugs, the eyelet bolts penetrate through the pin shafts, flanges are arranged at the edges of the processing bin 5 and the sealing cover 6, notches for avoiding the eyelet bolts are formed in the flanges corresponding to each group of eyelet bolts, and after the eyelet bolts are arranged in the corresponding notches in a rotating mode, the eyelet bolts are in threaded fit fastening connection with the lifting eye nuts, so that the sealing cover 6 and the processing bin 5 are in fastening connection; the inner cavity of the processing container 1 is coated with a soft elastic adhesion layer, the axial distance between a lower connecting disc 2 and an upper connecting disc 3 in a processing bin 5 is L, L = B +2a +2b, B is the thickness of a ferrule 7 to be processed, a is the radius of an upper limiting strip 9 or a lower limiting strip 10, B is the distance between two end faces of the ferrule 7 to be processed and the corresponding upper limiting strip 9 or lower limiting strip 10 respectively, c is the thickness of the lower connecting disc 2, the minimum value range of B is controlled to be 30-60mm, and the axial distance L between the lower connecting disc 2 and the upper connecting disc 3 in the processing bin 5 is the processing moving range of the ferrule 7 to be processed; the processing bin 5 is in a regular hexagonal prism shape, and the radius of an inscribed circle of the processing bin 5 is r b ，r b =R I +R O -r-r s + h, wherein R I Is the inner diameter of the ferrule, R O Is the outer diameter of a ferrule, r is the distance between the circle center of a single supporting rod 4 and the rotation center of the floating tool, and r is s The radius of the support rod 4 is defined, h is the distance between the lowest point of the ferrule when the ferrule is static and the lowest point of the inner wall of the processing bin 5, and the minimum value range of h is controlled to be 50-100 mm; the processing bin 5 can also be arranged in other polygonal shapes such as a cylindrical shape or a regular pentagonal prism, and the shape of the sealing cover 6 is matched with that of the processing bin 5; the lower connecting disc 2 is fixedly connected to the center of the bottom wall of the processing bin 5, the upper connecting disc 3 is fixedly connected to the center of the inner wall of the sealing cover 6, the upper connecting disc 3 and the lower connecting disc 2 are both circular annular plates, and the circle centers of the upper connecting disc 3 and the lower connecting disc 2 are located on a rotating axis of the floating tool, so that the rotating center of gravity is stable; at least three upper limiting strips 9 positioned on the upper connecting disc 3 in the radial direction are connected on the upper connecting disc 3The limiting strips 9 are uniformly distributed along the circumferential direction of the upper connecting disc 3; the lower connecting disc 2 is connected with at least three lower limiting strips 10 which are positioned on the lower connecting disc 2 in the radial direction, and the lower limiting strips 10 are uniformly distributed along the circumferential direction of the lower connecting disc 2; the upper limiting strip 9 and the lower limiting strip 10 are semi-cylindrical strip structures with the same structure size, and the straight side walls of the upper limiting strip 9 and the lower limiting strip 10 are respectively tightly attached to the upper connecting disc 3 and the lower connecting disc 2; the middle point of the bottom wall of the processing bin 5 and the middle point of the sealing cover 6 are both positioned on the rotating axis of the floating tool, two ends of the supporting rods 4 are respectively detachably and vertically connected to the upper connecting disc 3 and the lower connecting disc 2, all the supporting rods 4 are uniformly distributed on the circumference which takes the center of the bottom wall of the processing bin 5 as the circle center, and the to-be-processed ferrules 7 are sleeved outside all the supporting rods 4 and the radius of the ferrules is larger than that of the circumference where the supporting rods 4 are positioned; the radius of the circumcircle of the circumference of all the support rods 4 is r f The distance between the circle center of the single support rod 4 and the rotation center of the floating tool is r, and r is f =r+ r s In order to meet the requirement of floating clamping, 3r needs to be met s <r f <R I (ii) a The support rod 4 is made of carbon steel, and a flexible sleeve is sleeved on the outer wall of the support rod 4; the processing container 1 is filled with a polishing and grinding processing medium 8, the polishing and grinding processing medium 8 comprises a barrel polishing and grinding block and a liquid medium, and the filling amount of the barrel polishing and grinding block is 50% -80% of the volume of the processing container 1. In specific implementation, the number of the supporting rod 4, the number of the upper limiting strips 9 and the number of the lower limiting strips 10 can be set to be 3 to 10, and in specific embodiments, the number of the supporting rod 4, the number of the upper limiting strips 9 and the number of the lower limiting strips 10 are respectively set to be six. And the included angle between the support rod 4 and the upper limiting bar 9/the lower limiting bar 10 is alpha, and the value of alpha is determined according to the condition that alpha =360 degrees/2 n.
The to-be-processed ferrule 7 is hung on all the support rods 4, because the radius of the ferrule is larger than that of the circumference where the support rods 4 are located, the floating clamping of the ferrule is realized through the single-side constraint of the support rods 4, and when the support rods 4 rotate along with the processing container 1, the ferrule realizes continuous rotation motion through friction between the ferrule and the support rods 4. During processing, a polishing medium 8 is filled in the processing container 1, the polishing medium 8 moves along with the container to generate certain relative motion and acting force on the surface of the ferrule, so that the purpose of one-time polishing processing of the surface of the ferrule part is achieved, the removal amount of materials in the polishing method is small, the original precision of the ferrule part can be ensured, the surface performance can be improved, the shape synergistic polishing processing is realized, and the specific processing diagram is shown in fig. 4-7. During specific practical use, the frock of floating is vertical state, and wherein the rear end portion of frock of floating is the diapire of processing storehouse 5 promptly, and the preceding tip of frock of floating is the position of closing cap 6 promptly, and lower connection pad 2 is located the rear side, and upper connection pad 3 is located the front side, and when processing container 1 was static, the lasso was whole to be located vertical direction, and the lasso hangs on two spinal branch vaulting poles 4 that lean on. An intermediate plane in the processing container 1 is used as a reference plane, a rotation axis of the floating tool is used as an X axis, an intersection point of the reference plane and the rotation axis is used as an original point O, an XYZ rectangular coordinate system is established on the processing container 1, and the processing container 1 can rotate around the X axis in a positive and negative mode. To prevent scratches from being left on the ferrule surface by the abrasive media sticking to the ferrule during the abrasive process, two wedge angles were cut on the cylindrical surface of the support rod 4, as shown in fig. 3. The invention discloses a using method of a rotary polishing and grinding floating tool for processing the surface of a ferrule part, which comprises the following steps:
s1, fixing a lower limiting strip 10 on a lower connecting disc 2 through a screw, connecting the bottom ends of all supporting rods 4 with the lower connecting disc 2 to form a lower connecting piece, and installing the lower connecting piece on the center of the bottom wall of a processing bin 5;
s2, hanging the ferrule 7 to be processed on the support rod 4;
s3, fixing the upper limiting strip 9 on the upper connecting disc 3 through a screw, and connecting the upper connecting disc 3 with the top end of the supporting rod 4 through a screw;
s4, filling polishing and grinding media 8 into the processing bin 5, wherein the filling amount of the polishing and grinding media 8 is 50-80% of the volume of the processing container 1;
s5, installing two O-shaped rubber sealing rings 11 in two circumferential edge grooves on the upper end surface of the processing bin 5, which is in contact with the sealing cover 6, and then closing the sealing cover 6;
s6, fixing the rotary polishing floating tool on a motor through a connecting piece, and clockwise rotating around a rotary axis at a rotating speed n1 for t 1;
s7, then rotating around the rotation axis counterclockwise at the rotation speed n2, wherein the processing time is t 2;
s8, repeating the processing steps S6 to S7 until finishing processing of the ferrule is completed;
and S9, taking down the sealing cover 6 and the upper connecting disc 3, and taking down the ferrule from the support rod 4.
In the specific embodiment 1, in order to ensure that the ferrule 5 can realize continuous movement, the number of the support rod 4, the upper limit strip 9 and the lower limit strip 10 is six. The radius of the circumscribed circle of the circumference of the whole supporting rod 4 is 200mm, wherein the radius of a single supporting rod 4 is 25cm, and the cross section of the container body is in the shape of a regular hexagon. Its inscribed circle radius R B The distance between the center of the single support rod 5 with the length of 540mm and the rotation center of the floating tool is 175mm; go up spacing 9 and spacing 10 position down and correspond, go up spacing 9 or spacing 10 and bracing piece 4 position homogeneous phase and contained angle is 30 down, go up spacing 9 and spacing 10 down and be the halfcylinder, the radius is 30mm, length L 1 The diameter is 300mm, the ring 7 to be processed can be a bearing outer ring, the outer diameter of the bearing outer ring is 605mm, and the width in the horizontal direction is 78mm. The process of polishing and grinding the ferrule 7 to be machined by utilizing the rotary polishing and grinding floating tool for machining the surface of the ferrule part is as follows:
s1, fixing a lower limiting strip 10 on a lower connecting disc 2 through a screw, connecting the bottom ends of all supporting rods 4 with the lower connecting disc 2 to form a lower connecting piece, and installing the lower connecting piece on the center of the bottom wall of a processing bin 5;
s2, hanging the ferrule 7 to be processed on the support rod 4;
s3, fixing the upper limiting strip 9 on the upper connecting disc 3 through a screw, and connecting the upper connecting disc 3 with the top end of the supporting rod 4 through a screw;
s4, filling a polishing medium 8 into the processing bin 5, wherein the volume of the processing bin 5 is about 232L, the filling amount of the polishing medium 8 is 70% of the volume of the processing container 1, the filling amount of the polishing medium 8 is about 150L, and the polishing medium 8 consists of 14# walnut shells and S-100 tumbling oil;
s5, installing two O-shaped rubber sealing rings 11 in two circumferential edge grooves on the upper end surface of the processing bin 5, which is in contact with the sealing cover 6, and then closing the sealing cover 6;
s6, fixing the rotary polishing floating tool on a motor through a connecting piece, and clockwise rotating around a rotary axis at a rotating speed of 62r/min for 60min;
s7, then rotating around the rotation axis counterclockwise at the rotation speed of 62r/min, wherein the processing time is 60min;
s8, repeating the processing steps from S6 to S7, wherein the total processing time is 240min until finishing processing of the ferrule is completed;
and S9, taking down the sealing cover 6 and the upper connecting disc 3, and taking down the ferrule from the support rod 4.
The processing effect is as follows: the roughness Ra value of the inner cylindrical surface of the ferrule is reduced from 0.795 mu m to 0.613 mu m, the scratch part is removed, the roughness Ra value of the outer cylindrical surface is reduced from 0.929 mu m to 0.872 mu m, the scratch part is removed, the end surface roughness Ra value is reduced from 0.615 mu m to 0.525 mu m, and the scratch part is removed, thereby realizing the finishing processing target.
In the specific embodiment 2, the to-be-processed ferrule 7 is a bearing inner ring, the outer diameter of the to-be-processed ferrule is 490mm, the width of the to-be-processed ferrule is 41mm, and the polishing process performed by using the rotary polishing floating tool for surface processing of ferrule parts provided by the invention comprises the following steps:
s1, fixing a lower limiting strip 10 on a lower connecting disc 2 through a screw, connecting the bottom ends of all supporting rods 4 with the lower connecting disc 2 to form a lower connecting piece, and installing the lower connecting piece on the center of the bottom wall of a processing bin 5;
s2, hanging the ferrule 7 to be processed on the support rod 4;
s3, fixing the upper limiting strip 9 on the upper connecting disc 3 through a screw, and connecting the upper connecting disc 3 with the top end of the supporting rod 4 through a screw;
s4, filling a polishing medium 8 into the processing bin 5, wherein the volume of the processing bin 5 is about 232L, the filling amount of the polishing medium 8 is 90% of the volume of the processing container 1, the filling amount of the polishing medium 8 is about 190L, and the polishing medium 8 consists of 14# walnut shells and S-100 tumbling oil;
s5, installing two O-shaped rubber sealing rings 11 in two circumferential edge grooves on the upper end surface of the processing bin 5, which is in contact with the sealing cover 6, and then closing the sealing cover 6;
s6, fixing the rotary polishing and grinding floating tool on a motor through a connecting piece, and clockwise rotating around a rotary axis at a rotating speed of 39r/min for 60min;
s7, then rotating around the rotation axis counterclockwise at the rotation speed of 39r/min, wherein the processing time is 60min;
s8, repeating the processing steps from S6 to S7, wherein the total processing time is 720min until finishing the finishing processing of the ferrule;
and S9, taking down the sealing cover 6 and the upper connecting disc 3, and taking down the ferrule from the support rod 4.
The processing effect is as follows: the roughness Ra value of the inner cylindrical surface of the ferrule is reduced from 1.042 mu m to 0.600 mu m, the scratch part is removed, the roughness Ra value of the outer cylindrical surface is reduced from 0.288 mu m to 0.156 mu m, the scratch part is removed, the end surface roughness Ra value is reduced from 0.266 mu m to 0.144 mu m, and the scratch part is removed, thereby realizing the finishing processing target.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a rotation polishing and grinding frock that floats for lasso class part surface machining, a serial communication port, including processing container (1), lower connection pad (2), go up connection pad (3) and three piece at least spinal branch vaulting poles (4), processing container (1) is including dismantling processing storehouse (5) and closing cap (6) of connecting, lower connection pad (2) link firmly to the diapire central authorities of processing storehouse (5), it links firmly to closing cap (6) inner wall central authorities to go up connection pad (3), the diapire mid point of processing storehouse (5) and the mid point of closing cap (6) all are located frock pivot line that floats, the both ends of bracing piece (4) can be dismantled respectively and connect perpendicularly to last connection pad (3) and lower connection pad (2), and all bracing pieces (4) evenly distributed are to on the circumference that uses the center of the diapire of processing storehouse (5) as the centre of a circle, wait to process the coverThe ring (7) is sleeved outside all the support rods (4), and the inner diameter of the ring (7) to be processed is larger than the radius of the circumference where the support rods (4) are located; a polishing and grinding medium (8) is filled in the processing container (1); the radius of the circumscribed circle of the circumference where all the support rods (4) are positioned is r f The distance between the circle center of the single supporting rod (4) and the rotation center of the floating tool is r, and r is f =r+ r s ，r s The radius of the supporting rod (4) needs to meet the requirement of floating clamp installation by 3r s <r f <R I ，R I Is the inner diameter of the ferrule.
2. The rotary polishing and grinding floating tool for processing the surfaces of ferrule parts as claimed in claim 1, wherein the upper connecting disc (3) and the lower connecting disc (2) are both circular ring plates, and the circle centers of the upper connecting disc (3) and the lower connecting disc (2) are located on the rotation axis of the floating tool; the upper connecting disc (3) is connected with at least three upper limiting strips (9) positioned in the radial direction of the upper connecting disc (3), and the upper limiting strips (9) are uniformly distributed along the circumferential direction of the upper connecting disc (3); at least three lower limiting strips (10) which are positioned on the upper connecting disk (2) in the radial direction are connected to the lower connecting disk (2), and the lower limiting strips (10) are uniformly distributed along the circumferential direction of the lower connecting disk (2).
3. The rotary polishing and grinding floating tool for the surface machining of the ferrule parts as claimed in claim 2, wherein the upper limiting strip (9) and the lower limiting strip (10) are semi-cylindrical strip structures with the same structure and size, and straight side walls of the upper limiting strip (9) and the lower limiting strip (10) are respectively tightly attached to the upper connecting disc (3) and the lower connecting disc (2).
4. The rotary polishing and floating tool for processing the surfaces of ferrule parts as claimed in claim 3, wherein the inner cavity of the processing container (1) is coated with a soft elastic adhesion layer, the axial distance between the lower connecting disc (2) and the upper connecting disc (3) in the processing bin (5) is L, L = B +2a +2b, B is the thickness of the ferrule (7) to be processed, a is the radius of the upper limiting bar (9) or the lower limiting bar (10), B is the distance between the two end faces of the ferrule (7) to be processed and the corresponding upper limiting bar (9) or the corresponding lower limiting bar (10), and the minimum value range of B is controlled to be 30-60 mm.
5. The rotary polishing and grinding floating tool for the surface machining of the ferrule parts as claimed in any one of claims 1 to 4, wherein the machining bin (5) is in a regular hexagonal prism shape, and the radius of an inscribed circle of the machining bin (5) is r b ，r b =R I +R O -r-r s + h, wherein R I Is the inner diameter of the ferrule, R O Is the outer diameter of a ferrule, r is the distance between the circle center of a single supporting rod (4) and the rotation center of the floating tool, and r is s The radius of the supporting rod (4) is defined, h is the distance between the lowest point of the ferrule when the ferrule is static and the lowest point of the inner wall of the processing bin (5), and the minimum value range of h is controlled to be 50-100 mm.
6. The rotary polishing and grinding floating tool for machining the surfaces of ferrule parts as claimed in claim 5, wherein the support rod (4) is made of carbon steel, and a flexible sleeve is sleeved on the outer wall of the support rod (4).
7. The rotary polishing and grinding floating tool for the surface machining of the ferrule parts as claimed in claim 6, wherein two circumferential edge grooves are formed in the upper end face, in contact with the sealing cover (6), of the machining bin (5), O-shaped rubber sealing rings (11) are assembled in the circumferential edge grooves, and the machining bin (5) and the sealing cover (6) are fixedly connected through a plurality of sets of bolt and nut assemblies (12) after being closed.
8. The rotary polishing and grinding floating tool for the surface machining of the ferrule parts as claimed in claim 7, wherein the machining cabin (5) is further configured to be a cylinder or a regular pentagonal prism, and the shape of the sealing cover (6) is matched with that of the machining cabin (5).
9. The rotary polishing and floating tool for the surface machining of the ferrule parts as claimed in claim 8, wherein the polishing and machining medium (8) comprises a barrel polishing block and a liquid medium, and the filling amount of the polishing and machining medium (8) is 50-80% of the volume of the machining container (1).
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| CN202211059711.7A CN115122223B (en) | 2022-09-01 | 2022-09-01 | Rotary polishing and grinding floating tool for machining surfaces of ferrule parts |
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| CN202211059711.7A CN115122223B (en) | 2022-09-01 | 2022-09-01 | Rotary polishing and grinding floating tool for machining surfaces of ferrule parts |
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| CN115122223B true CN115122223B (en) | 2023-02-03 |
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Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2256162B (en) * | 1991-05-29 | 1995-05-03 | Lin Chao Tung | Centrifugal lapping apparatus |
| US5271184A (en) * | 1992-05-06 | 1993-12-21 | Majors Curtis O | Vibratory finishing apparatus for hollow cylindrical and other large or groupings of articles |
| JPH10109262A (en) * | 1996-10-03 | 1998-04-28 | Noritsu Koki Co Ltd | Barrel polishing material and method for selecting work thereby |
| CN201824249U (en) * | 2010-07-27 | 2011-05-11 | 山东开泰抛丸机械有限公司 | Shot blasting machine |
| CN201900014U (en) * | 2010-11-29 | 2011-07-20 | 浙江华联制药机械股份有限公司 | Barrelling type reaction kettle |
| CN103522176B (en) * | 2012-10-18 | 2017-04-26 | 江苏省（扬州）数控机床研究院 | Floating finishing-machining grinding head with controllable grinding force |
| CN203125297U (en) * | 2013-01-11 | 2013-08-14 | 廊坊市北方天宇机电技术有限公司 | Rotating material box finishing machine applicable to long axis parts |
| CN103317440B (en) * | 2013-06-27 | 2015-06-24 | 常州克劳诺斯特种轴承制造有限公司 | Bearing sleeve ring grinding process floating support device |
| CN105619195A (en) * | 2014-11-06 | 2016-06-01 | 无锡市洪成造纸机械有限公司 | Polishing and grinding machine |
| CN104985507B (en) * | 2015-07-22 | 2017-03-15 | 太原理工大学 | A kind of blade surface centrifugal barrel finishing method of employing distributed protection measure |
| CN105728858B (en) * | 2016-02-20 | 2018-02-16 | 太原理工大学 | A kind of big-and-middle-sized roller gear square crossing king post system centrifugal barrel finishing method |
| CN106180909B (en) * | 2016-08-26 | 2018-03-16 | 廊坊市北方天宇机电技术有限公司 | A kind of synchronizer gear sleeve class part spiral-flow type centrifugal barrel finishing fitting device and method |
| CN109909862A (en) * | 2017-12-13 | 2019-06-21 | 廊坊市北方天宇机电技术有限公司 | A kind of large thin-wall cylinder part surfaces externally and internally centrifugal barrel finishing method and apparatus simultaneously |
| RU2703065C1 (en) * | 2019-04-12 | 2019-10-15 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Пензенский государственный университет" (ФГБОУ "ПГУ") | Method of centrifugal abrasive processing of rings of rolling bearings |
| CN210819050U (en) * | 2019-07-12 | 2020-06-23 | 烟台安信机电科技有限公司 | Barreling type polishing processing equipment |
| CN110842749B (en) * | 2019-10-22 | 2021-05-28 | 太原理工大学 | Combined closed cavity vibration type barreling and polishing device and method for processing blade surface |
| CN111702650B (en) * | 2020-06-28 | 2021-09-21 | 长春理工大学 | Equipment for assisting abrasive particle jet flow in precisely machining bearing ring through Laval nozzle |
| CN112720239B (en) * | 2020-12-29 | 2022-08-19 | 中国航发哈尔滨轴承有限公司 | Method for polishing inner and outer surfaces of bearing ring by rotational flow tumbling process |
| CN114131499B (en) * | 2021-12-02 | 2022-10-14 | 成都市鸿侠科技有限责任公司 | Surface precision treatment system and treatment process for split blade of aircraft engine |
| CN114714239B (en) * | 2022-06-10 | 2022-09-06 | 太原理工大学 | Multi-bin ultra-precision centrifugal polishing and grinding device and method for surface of bearing rolling body |
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