CN114536218A - Supporting device for polishing thin-wall parts - Google Patents
Supporting device for polishing thin-wall parts Download PDFInfo
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- CN114536218A CN114536218A CN202210438194.8A CN202210438194A CN114536218A CN 114536218 A CN114536218 A CN 114536218A CN 202210438194 A CN202210438194 A CN 202210438194A CN 114536218 A CN114536218 A CN 114536218A
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- wall part
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses a supporting device for polishing a thin-wall part, which belongs to the technical field of thin-wall part processing and comprises a driving shaft sleeve, wherein a driving groove is formed in the inner wall of the driving shaft sleeve; the driving shaft sleeve is sleeved with an installation sleeve block, the installation sleeve block is of a disc-shaped structure and can rotate relative to the driving shaft sleeve, a connecting seat is embedded in the outer circular surface of the installation sleeve block, at least four connection seats are arranged on the connecting seat and distributed at equal intervals, a plurality of expanding blocks coaxial with the installation sleeve block are arranged around the installation sleeve block in a surrounding mode, the number of the expanding blocks is the same as that of the connecting seat, the number of the expanding blocks corresponds to that of the connecting seat, and a supporting piece is arranged between each corresponding expanding block and the corresponding connecting seat; a plurality of auxiliary main cavities are formed in the mounting sleeve block, and the number of the auxiliary main cavities is the same as that of the connecting seats and corresponds to that of the connecting seats in a single mode. This a strutting arrangement for thin wall part is polished can be at the support or the lock of polishing in-process to thin wall part more firm.
Description
Technical Field
The invention belongs to the technical field of thin-wall part machining, and particularly relates to a supporting device for polishing a thin-wall part.
Background
Thin-walled parts are parts made of a metal material having a wall thickness of 1mm or less. Thin-walled parts are increasingly used in industrial sectors because of their light weight, material saving, compact construction and the like. However, the thin-walled parts are difficult to machine in turning because the thin-walled parts have poor rigidity and strength, are very easy to deform in machining, increase the form and position errors of the parts, and are difficult to ensure the machining quality of the parts, so that a specific supporting device is needed.
At present, when turning processing of an outer circle and an end face of an annular thin-wall part is carried out, an inner hole is required to be used as a positioning clamping reference, an adjustable supporting piece is usually used for supporting an annular body formed by a plurality of supporting blocks, the supporting blocks are abutted to the inner wall of the annular thin-wall part, the clamping mode can be used for processing annular thin-wall parts with different sizes, but in the processing process, the supporting force of the supporting blocks on the inner wall of the annular thin-wall part is limited, the phenomenon that the supporting blocks and the annular thin-wall part slip easily occurs, and polishing processing of the annular thin-wall part is influenced. For this reason, a supporting device for grinding thin-walled parts is needed to solve the above problems.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, in the clamping mode that an annular body consisting of a plurality of supporting blocks is supported by an adjustable supporting piece to support an annular thin-wall part, the supporting force of the supporting block to the inner wall of the annular thin-wall part is limited in the machining process, and the supporting block and the annular thin-wall part are easy to slip.
In order to achieve the purpose, the invention provides the following technical scheme: a supporting device for polishing a thin-wall part comprises a driving shaft sleeve, wherein a driving groove is formed in the inner wall of the driving shaft sleeve;
the driving shaft sleeve is sleeved with an installation sleeve block, the installation sleeve block is of a disc-shaped structure and can rotate relative to the driving shaft sleeve, a connecting seat is embedded in the outer circular surface of the installation sleeve block, at least four connection seats are arranged on the connecting seat and distributed at equal intervals, a plurality of expanding blocks coaxial with the installation sleeve block are arranged around the installation sleeve block in a surrounding mode, the number of the expanding blocks is the same as that of the connecting seat, the number of the expanding blocks corresponds to that of the connecting seat, and a supporting piece is arranged between each corresponding expanding block and the corresponding connecting seat;
the installation cover piece is inside to have seted up a plurality of supplementary main cavities, the quantity of supplementary main cavity with the same and single correspondence of quantity of connecting seat is a plurality of supplementary main cavity encircles the drive axle sleeve and arranges, in the supplementary main cavity of connecting seat activity embedding, be fixed with first auxiliary arm on the drive axle sleeve outer wall, first auxiliary arm with supplementary main cavity quantity is the same and single correspondence, the one end that the drive axle sleeve was kept away from to first auxiliary arm stretches into in the supplementary main cavity that corresponds and is provided with the connecting axle, it is connected with the second auxiliary arm to rotate on the connecting axle, the one end that the connecting axle was kept away from to the second auxiliary arm rotates with the connecting seat and is connected.
Through the technical scheme, when the outer disc of annular thin wall part is polished to needs, annular thin wall part cover is on the polylith expands the bracer, the drive axle sleeve drives first auxiliary arm and rotates towards one side of supplementary main cavity room, second auxiliary arm and first auxiliary arm will tend to same length direction's state by the state of buckling each other, this change process has benefited, will promote the connecting seat and stretch out towards supplementary main cavity room outside, expand the even supporting force that continuously exerts of bracer to the polylith, and then exert continuous expansion power to annular thin wall part, make annular thin wall part increase more firm in the outer disc polishing process.
In a further embodiment, a main limiting block is arranged on the inner side wall of the auxiliary main cavity chamber, and the main limiting block and the connecting shaft are located on the same annular motion track.
Through above-mentioned technical scheme, the activity that first auxiliary arm faced one side can be restricted to main stopper, makes first auxiliary arm and second auxiliary arm keep in same length direction.
In a further embodiment, the supporting member comprises a buffering cylinder installed at one end, far away from the installation sleeve block, of the connecting seat, a threaded column inserted on the buffering cylinder, and a sleeve sleeved at one end, far away from the buffering cylinder, of the threaded column, the sleeve is rotatably connected with the expanding block, and a nut sleeve is fixedly sleeved on the outer wall of the sleeve.
Through above-mentioned technical scheme, twist the nut cover and drive the sleeve and rotate, utilize the screw thread of sleeve and screw thread post to cup joint, can realize the regulation to expanding bracer and connecting seat interval, be applicable to not polishing of unidimensional thin wall part.
In a further embodiment, the one end that the screw thread post was kept away from to the sleeve is fixed with the rotation axis, expand the bracer and fix towards the one side of installation sleeve piece and inlay and have the bearing, the bearing cup joints with the rotation axis.
Through above-mentioned technical scheme, utilize the rotation regulation of rotation axis and bearing, can expand the in-process of kicking block and connecting seat interval in the regulation, expand the kicking block not rotate with sleeve synchronization.
In a further embodiment, a clamp spring is movably arranged between the expansion blocks in a penetrating manner, and the clamp spring and the installation sleeve block are coaxially arranged.
Through above-mentioned technical scheme, at the in-process of adjusting the connecting seat and expanding the bracer interval, the jump ring can expand the bracer spacing to the polylith, avoids expanding the bracer and sleeve synchronous rotation as far as possible.
In a further embodiment, a fastening block is arranged on one side of the expanding block, the fastening block and one surface of the expanding block, which is far away from the mounting sleeve block, are flush and are both arc surfaces, and one surface of the fastening block, which faces the mounting sleeve block, is also an arc surface.
Through above-mentioned technical scheme, polylith lock piece forms annular lock body for to annular thin wall part centre gripping, the setting of arc surface makes that expand the piece can be better support annular thin wall part.
In a further embodiment, an auxiliary cavity for expanding the movement track of the connecting shaft is formed in one side, opposite to the main limiting block, of the auxiliary main cavity, and an auxiliary limiting block for supporting the connecting shaft is arranged on the inner wall of the auxiliary cavity.
Through the technical scheme, when the inner circular surface of the annular thin-wall part needs to be polished, the annular thin-wall part is embedded between the multiple buckling blocks, the rotating direction of the driving shaft sleeve is opposite to the rotating direction of the outer circular surface of the annular thin-wall part during polishing, the driving shaft sleeve drives the first auxiliary arm to rotate towards the auxiliary cavity, the first auxiliary arm and the second auxiliary arm tend to be bent from the state of the same length direction, the change process is facilitated, the connecting seat is driven to tend to move in the auxiliary cavity, the contraction force is uniformly and continuously applied to the multiple expanding blocks and the buckling blocks, continuous buckling force is further applied to the annular thin-wall part, and the annular thin-wall part is enabled to be more stable in the inner circular surface polishing process.
In a further embodiment, a limiting plate is fixed to one end, inserted into the buffer cylinder, of the threaded column, a limiting groove is formed in the side wall of the limiting plate, and a limiting strip embedded into the limiting groove is vertically formed in the inner wall of the buffer cylinder.
Through above-mentioned technical scheme, when twisting sleeve regulation connecting seat and expand the bracer interval, spacing and spacing cooperation of spacing groove can avoid screw thread post and sleeve synchronous rotation as far as possible.
In a further embodiment, a first spring is arranged between the limiting plate and the bottom wall inside the buffer cylinder, a second spring is arranged between the limiting plate and the top wall inside the buffer cylinder, and the second spring is sleeved on the threaded column.
Through the technical scheme, the multiple buckling blocks are enabled to continuously expand the annular thin-wall part in the expanding process through the arrangement of the first spring, the damage to the annular thin-wall part caused by the excessive expanding can be avoided as much as possible, the multiple buckling blocks are enabled to continuously buckle the annular thin-wall part in the buckling process through the arrangement of the second spring, and the damage to the annular thin-wall part caused by the excessive buckling can be avoided as much as possible.
In a further embodiment, two ends of one end of the connecting seat facing the inside of the auxiliary main cavity chamber are provided with limiting bulges, and the limiting bulges are in sliding contact with the inner wall of the auxiliary main cavity chamber.
Through above-mentioned technical scheme, can improve the stability when the connecting seat stretches into or stretches out supplementary main cavity room.
The invention has the technical effects and advantages that:
when the outer circular surface of the annular thin-wall part needs to be polished, the annular thin-wall part is sleeved on the plurality of expanding blocks, the driving shaft sleeve drives the first auxiliary arm to rotate towards the direction of the main limiting block, the second auxiliary arm and the first auxiliary arm tend to be in the same length direction from the mutually bent state, the change process is benefited, the connecting seat is pushed to extend towards the outer side of the auxiliary main cavity, the plurality of expanding blocks are uniformly and continuously applied with supporting force, and then continuous expanding force is applied to the annular thin-wall part, so that the annular thin-wall part is more and more stable in the outer circular surface polishing process. And the first spring is matched, so that the annular thin-wall part is continuously expanded by the plurality of expansion blocks, and the damage to the annular thin-wall part caused by excessive expansion can be avoided as much as possible.
When the inner circular surface of the annular thin-wall part needs to be polished, the annular thin-wall part is embedded among the plurality of buckling blocks, the rotating direction of the driving shaft sleeve is opposite to the rotating direction of the outer circular surface of the annular thin-wall part during polishing, the driving shaft sleeve drives the first auxiliary arm to rotate towards the auxiliary cavity at the moment, the first auxiliary arm and the second auxiliary arm tend to be in a mutually bent state from a state in the same length direction, the change process is benefited, the connecting seat is driven to tend to move in the auxiliary main cavity, the plurality of expanding blocks and the buckling blocks are uniformly and continuously applied with contraction force, and then continuous buckling force is applied to the annular thin-wall part, so that the annular thin-wall part is more and more stable in the inner circular surface polishing process. And the second spring is matched, so that the damage to the annular thin-wall part caused by excessive buckling can be avoided as much as possible in the process of continuously buckling the annular thin-wall part by the plurality of buckling blocks.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of a mounting block of the present invention;
FIG. 3 is a schematic structural view of the expanding block of the present invention;
FIG. 4 is a schematic view of the internal structure of the auxiliary main chamber of the present invention;
FIG. 5 is a schematic view of the structure of the driving sleeve of the present invention;
FIG. 6 is a schematic view of the structure of the support member of the present invention;
FIG. 7 is a schematic structural view of a cushion cylinder according to the present invention;
fig. 8 is a schematic structural diagram of the limiting plate of the invention.
In the figure: 1. a drive shaft sleeve; 2. installing a sleeve block; 3. a connecting seat; 4. a support member; 5. expanding a support block; 6. a clamp spring; 7. buckling blocks; 8. connecting a lug plate; 9. a bearing; 10. an auxiliary main chamber; 11. a limiting bulge; 12. a first auxiliary arm; 13. a second auxiliary arm; 14. an auxiliary sub-chamber; 15. a main limiting block; 16. an auxiliary limiting block; 17. a drive slot; 18. a connecting shaft; 19. a cushion cylinder; 20. a threaded post; 21. a sleeve; 22. a nut sleeve; 23. a rotating shaft; 24. a limiting plate; 25. a first spring; 26. a second spring; 27. a limiting strip; 28. a limiting groove; 29. and (4) a ring seat.
Detailed Description
The present invention is described in detail with reference to the drawings, but the scope of the present invention is not limited to the following embodiments, and all simple equivalent changes and modifications made by the claims and the contents of the specification of the present invention are still within the scope of the present invention.
The first embodiment is as follows:
referring to fig. 1, a strutting arrangement for be used for thin wall part to polish, including drive axle sleeve 1, seted up drive groove 17 (referring to fig. 5) on the drive axle sleeve 1 inner wall, establish connecting seat 3 cover on the drive shaft of the drive equipment of similar with the motor, cooperation drive groove 17 is spacing, can drive connecting seat 3 and rotate at a high speed.
Referring to fig. 1, the cover is equipped with installation sleeve block 2 on the drive axle sleeve 1, installation sleeve block 2 is discoid structure and can rotate relatively with drive axle sleeve 1, it has connecting seat 3 to inlay on the outer disc of installation sleeve block 2, connecting seat 3 is provided with four at least and equidistant distribution, install and encircle around the sleeve block 2 and arrange polylith and the coaxial expansion bracer 5 of installation sleeve block 2, the polylith expands bracer 5 and forms annular supporter, a support for annular thin wall part, expand bracer 5 and keep away from the one side of installation sleeve block 2 and be the arc surface, can be better support annular thin wall part. The number of the expanding blocks 5 is the same as that of the connecting seats 3, the expanding blocks correspond to the connecting seats 3 in a single mode, supporting pieces 4 are arranged between the corresponding expanding blocks 5 and the connecting seats 3, and each expanding block 5 is supported through the supporting pieces 4.
Referring to fig. 1, fig. 2 and fig. 4, a plurality of supplementary main cavity rooms 10 have been seted up to installation cover block 2 inside, the quantity of supplementary main cavity room 10 is the same and single corresponding with the quantity of connecting seat 3, a plurality of supplementary main cavity rooms 10 encircle drive axle sleeve 1 and arrange, in the supplementary main cavity room 10 of 3 movable embedding of connecting seat, connecting seat 3 can freely stretch into or stretch out supplementary main cavity room 10, connecting seat 3 all is provided with spacing arch 11 towards the both ends of the inside one end of supplementary main cavity room 10, spacing arch 11 and supplementary main cavity room 10 inner wall sliding contact, stability when connecting seat 3 stretches into or stretches out supplementary main cavity room 10 can be improved. The expanding and contracting of the expanding block 5 are realized. Be fixed with first auxiliary arm 12 on the drive axle sleeve 1 outer wall, first auxiliary arm 12 is the same and single corresponding with supplementary main cavity 10 quantity, and the one end that drive axle sleeve 1 was kept away from to first auxiliary arm 12 stretches into in the supplementary main cavity 10 that corresponds and is provided with connecting axle 18 (refer to fig. 5), rotates on the connecting axle 18 and is connected with second auxiliary arm 13, and the one end that connecting axle 18 was kept away from to second auxiliary arm 13 rotates with connecting seat 3 and is connected. The auxiliary main chamber 10 is provided with a main limiting block 15 on the inner side wall, and the main limiting block 15 and the connecting shaft 18 are located on the same annular motion track. The main stopper 15 can restrict the movement of the first auxiliary arm 12 toward one side, so that the first auxiliary arm 12 and the second auxiliary arm 13 are maintained in the same longitudinal direction. In the using process, the annular thin-wall part is sleeved on an annular supporting body formed by the expanding blocks 5, the driving shaft sleeve 1 drives the first auxiliary arm 12 to rotate towards the direction of the main limiting block 15, the second auxiliary arm 13 and the first auxiliary arm 12 tend to be in the same length direction from the mutually bent state, the main limiting block 15 limits the state of the first auxiliary arm 12 and the second auxiliary arm 13 in the same length direction, in the changing process, the connecting seat 3 is pushed to extend out towards the outer side of the auxiliary main chamber 10, the supporting force is uniformly and continuously applied to the expanding blocks 5, and then continuous expanding force is applied to the annular thin-wall part.
Example two:
referring to fig. 1, one side of the expanding block 5 is provided with a buckling block 7, the quantity of the buckling blocks 7 is the same as that of the expanding block 5, at least four buckling blocks are arranged, and the buckling blocks 7 form an annular buckling body for clamping an annular thin-wall part. The fastening block 7 and the expanding block 5 are parallel and level to the surface far away from the mounting sleeve block 2 and are both arc surfaces, so that the influence of the fastening block 7 on the expanding of the annular thin-wall part is avoided as much as possible. The surface of the buckling block 7 facing the mounting sleeve block 2 is also an arc surface, so that the annular buckling body formed by the plurality of buckling blocks 7 is used for clamping the annular thin-wall part.
Referring to fig. 3, the two sides of the expanding block 5 and the buckling block 7 are both provided with connecting lugs 8, and the connecting lugs 8 are fixed by bolts so as to facilitate replacement or adjustment of the buckling block 7.
Referring to fig. 1, 2 and 4, an auxiliary sub-chamber 14 for extending the movement track of the connecting shaft 18 is disposed on a side of the auxiliary main chamber 10 opposite to the main limiting block 15, the driving shaft sleeve 1 drives the first auxiliary arm 12 to rotate the connecting shaft 18 into the auxiliary sub-chamber 14, so that the first auxiliary arm 12 and the second auxiliary arm 13 can be bent to each other as much as possible, an auxiliary limiting block 16 for supporting the connecting shaft 18 is disposed on an inner wall of the auxiliary sub-chamber 14, and the auxiliary limiting block 16 plays a role in limiting the maximum bending angle of the first auxiliary arm 12 and the second auxiliary arm 13. When the device is used, the annular thin-wall part is embedded among the plurality of buckling blocks 7, the driving shaft sleeve 1 is driven to rotate towards the direction opposite to the direction of polishing the outer circular surface of the annular thin-wall part, at the moment, the driving shaft sleeve 1 drives the first auxiliary arm 12 to rotate towards the auxiliary cavity 14, the first auxiliary arm 12 and the second auxiliary arm 13 tend to be mutually bent from the state of the same length direction, the auxiliary limiting block 16 limits the maximum bending angle of the first auxiliary arm 12 and the second auxiliary arm 13, and in the change process, the connecting seat 3 is driven to tend to move in the auxiliary main cavity 10, the plurality of expanding blocks 5 and the buckling blocks 7 are uniformly and continuously applied with contraction force, and the annular thin-wall parts are continuously buckled and fixed by the method, the polishing device is used for polishing the inner wall of the annular thin-wall part, and the annular thin-wall part is increasingly stabilized in the polishing process of the inner circular surface.
Example three:
referring to fig. 1, 2 and 4, the buckling blocks 7 are provided with four buckling blocks, when in use, the thin-wall part with the rectangular outer surface structure is placed between the four buckling blocks 7, the driving shaft sleeve 1 is driven to drive the first auxiliary arm 12 to rotate towards the auxiliary chamber 14, the first auxiliary arm 12 and the second auxiliary arm 13 tend to be in a mutually bent state from a state with the same length direction, the auxiliary limiting block 16 limits the maximum bending angle of the first auxiliary arm 12 and the second auxiliary arm 13, in the change process, the connecting seat 3 is driven to tend to move in the auxiliary main chamber 10, the four buckling blocks 7 are uniformly and continuously applied with contraction force, the four buckling blocks 7 are respectively abutted against four surfaces of the thin-wall part with the rectangular outer surface structure and are applied with continuous buckling force, and the thin-wall part with the rectangular outer surface structure can be buckled and fixed by using the method for polishing the inner cavity of the thin-wall part with the rectangular outer surface structure, and the thin-wall part with the rectangular outer surface structure can be increasingly stabilized in the inner cavity polishing process.
Example four:
referring to fig. 1 and 6, a buffer cylinder 19 installed at one end of the connecting seat 3 far away from the installation sleeve block 2, a threaded column 20 inserted on the buffer cylinder 19, and a sleeve 21 threaded at one end of the threaded column 20 far away from the buffer cylinder 19, wherein the sleeve 21 is rotatably connected with the expanding block 5. The nut sleeve 22 is fixedly sleeved on the outer wall of the sleeve 21, the nut sleeve 22 is screwed to drive the sleeve 21 to rotate, the distance between the expanding block 5 and the connecting seat 3 can be adjusted by utilizing the threaded sleeve connection of the sleeve 21 and the threaded column 20, and the grinding tool is suitable for grinding thin-wall parts with different sizes by matching with the embodiment. One end of the sleeve 21, which is far away from the threaded column 20, is fixed with a rotating shaft 23, one surface of the expanding block 5, which faces the mounting sleeve block 2, is fixedly embedded with a bearing 9, and the bearing 9 is sleeved with the rotating shaft 23. By utilizing the rotation adjustment of the rotating shaft 23 and the bearing 9, the expanding block 5 does not rotate synchronously with the sleeve 21 in the process of adjusting the distance between the expanding block 5 and the connecting seat 3. The cushion cylinder 19 is provided with a ring seat 29, and the cushion cylinder 19 is connected with the connecting seat 3 through the ring seat 29, so that the cushion cylinder 19 and the connecting seat 3 can be conveniently detached and maintained.
Refer to fig. 6, fig. 7, fig. 8, the one end that the screw post 20 inserted 19 inside is fixed with limiting plate 24, limiting groove 28 has been seted up on the limiting plate 24 lateral wall, the vertical spacing strip 27 of seting up in embedding limiting groove 28 on the 19 inner walls of cushion cylinder, when twisting sleeve 21 and adjusting connecting seat 3 and expanding the 5 intervals of kickback, spacing strip 27 and the spacing cooperation of limiting groove 28, can avoid screw post 20 and sleeve 21 to rotate in step as far as possible, guarantee to expand kickback 5 and the stability of 3 interval modulation of connecting seat. Jump ring 6 is worn to be equipped with in the joint activity between the polylith expands the brace piece 5, jump ring 6 and the coaxial setting of installation cover piece 2. In the process of adjusting the distance between the connecting seat 3 and the expanding support block 5, the clamp spring 6 can limit the expanding support blocks 5 to the multiple blocks, and the expanding support blocks 5 and the sleeve 21 are prevented from rotating synchronously as much as possible. Be provided with first spring 25 between limiting plate 24 and the inside diapire of buffer cylinder 19, through the setting of first spring 25, make polylith expand the stay block 5 and continue to expand the in-process to annular thin wall part, can avoid excessively expanding the damage that props the annular thin wall part and cause as far as possible. A second spring 26 is arranged between the limiting plate 24 and the top wall inside the buffer cylinder 19, and the second spring 26 is sleeved on the threaded column 20. Through the arrangement of the second spring 26, in the process that the plurality of buckling blocks 7 continuously buckle the annular thin-wall part, damage to the annular thin-wall part caused by excessive buckling can be avoided as much as possible.
The working principle is as follows: when the polishing device is used, when the outer circular surface of the annular thin-wall part needs to be polished, the annular thin-wall part is sleeved on an annular supporting body formed by the expansion blocks 5, the threaded column 20 is screwed to drive the sleeve 21 and the threaded column 20 to rotate relatively, the distance between the expansion blocks 5 and the connecting seat 3 is uniformly adjusted until the expansion blocks 5 are abutted against the inner circular surface of the annular thin-wall part, the purpose of supporting the annular thin-wall part can be achieved, and at the moment, the annular thin-wall part and the driving shaft sleeve 1 can be driven to rotate coaxially only by driving the driving shaft sleeve 1 to rotate, so that the polishing operation is realized.
In-process that the disc outside of annular thin wall part was polished, drive axle sleeve 1 drives first auxiliary boom 12 and rotates towards the direction of main stopper 15, second auxiliary boom 13 and first auxiliary boom 12 tend to same length direction's state by the state of buckling each other, it is spacing to be in same length direction's state first auxiliary boom 12 and second auxiliary boom 13 by main stopper 15, this change in-process, will promote connecting seat 3 and stretch out towards supplementary main cavity 10 outsides, expand 5 even support force of continuously applying of braced block to the polylith, and then exert the expanding force that lasts to annular thin wall part, make annular thin wall part more stable in the disc polishing process outward. Through the arrangement of the first spring 25, the plurality of expanding blocks 5 continuously expand the annular thin-wall part in the expanding process, and the damage to the annular thin-wall part caused by excessive expanding can be avoided as much as possible.
When the inner circle surface of the annular thin-wall part needs to be polished, the annular thin-wall part is embedded among the plurality of buckling blocks 7, the nut sleeve 22 is screwed to enable the sleeve 21 to move relative to the threaded column 20, the distance between the plurality of expanding blocks 5 and the installation sleeve block 2 is uniformly adjusted to achieve uniform adjustment of the plurality of buckling blocks 7 until the buckling blocks 7 abut against the outer circle surface of the annular thin-wall part, and the driving shaft sleeve 1 and the annular thin-wall part can be driven to rotate coaxially, so that the polishing operation of the inner circle surface of the annular thin-wall part is achieved.
In the polishing process of the inner circular surface of the annular thin-wall part, the rotation direction of the driving shaft sleeve 1 is opposite to the rotation direction of the outer circular surface of the annular thin-wall part during polishing, at the moment, the driving shaft sleeve 1 drives the first auxiliary arm 12 to rotate towards the auxiliary cavity 14, the first auxiliary arm 12 and the second auxiliary arm 13 tend to be in a mutually bent state from a state in the same length direction, the auxiliary limiting block 16 limits the maximum bending angle of the first auxiliary arm 12 and the second auxiliary arm 13, in the changing process, the connecting seat 3 is driven to tend to move in the auxiliary main cavity 10, the plurality of expanding blocks 5 and the plurality of buckling blocks 7 are uniformly and continuously applied with contraction force, continuous buckling force is applied to the annular thin-wall part, and the annular thin-wall part is enabled to be more stable in the polishing process of the inner circular surface. Through the arrangement of the second spring 26, the damage to the annular thin-wall part caused by excessive buckling can be avoided as much as possible in the continuous buckling process of the plurality of buckling blocks 7 to the annular thin-wall part.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A supporting device for polishing thin-wall parts comprises a driving shaft sleeve (1), wherein a driving groove (17) is formed in the inner wall of the driving shaft sleeve (1);
the method is characterized in that: the driving shaft sleeve (1) is sleeved with an installation sleeve block (2), the installation sleeve block (2) is of a disc-shaped structure and can rotate relative to the driving shaft sleeve (1), connecting seats (3) are embedded in the outer circular surface of the installation sleeve block (2), the connecting seats (3) are at least provided with four blocks which are distributed at equal intervals, a plurality of expanding blocks (5) coaxial with the installation sleeve block (2) are arranged around the installation sleeve block (2), the number of the expanding blocks (5) is the same as that of the connecting seats (3), the expanding blocks correspond to the connecting seats in a single mode, and supporting pieces (4) are arranged between the corresponding expanding blocks (5) and the connecting seats (3);
a plurality of auxiliary main cavities (10) are arranged in the mounting sleeve block (2), the number of the auxiliary main cavities (10) is the same as that of the connecting seats (3) and corresponds to that of the connecting seats singly, the auxiliary main cavities (10) are arranged around the driving shaft sleeve (1), the connecting seat (3) is movably embedded into the auxiliary main cavity (10), a first auxiliary arm (12) is fixed on the outer wall of the driving shaft sleeve (1), the first auxiliary arms (12) and the auxiliary main chambers (10) are the same in number and correspond to each other, one end of the first auxiliary arm (12) far away from the driving shaft sleeve (1) extends into the corresponding auxiliary main cavity (10) and is provided with a connecting shaft (18), the connecting shaft (18) is rotatably connected with a second auxiliary arm (13), and one end, far away from the connecting shaft (18), of the second auxiliary arm (13) is rotatably connected with the connecting seat (3).
2. The supporting device for grinding the thin-wall part as claimed in claim 1, wherein: the auxiliary main cavity (10) is characterized in that a main limiting block (15) is arranged on the inner side wall of the auxiliary main cavity, and the main limiting block (15) and the connecting shaft (18) are located on the same annular motion track.
3. The supporting device for grinding the thin-wall part as claimed in claim 1, wherein: support piece (4) including install buffer cylinder (19) of keeping away from installation nested piece (2) one end in connecting seat (3), insert threaded post (20) and the screw thread cover established on buffer cylinder (19) and establish sleeve (21) of keeping away from buffer cylinder (19) one end in threaded post (20), sleeve (21) with expand bracer (5) rotatable coupling, fixed cover is equipped with nut cover (22) on sleeve (21) outer wall.
4. The supporting device for grinding the thin-wall part as claimed in claim 3, wherein: one end that screw thread post (20) were kept away from in sleeve (21) is fixed with rotation axis (23), expand bracer (5) and fix towards the one side of installation sleeve block (2) and inlay and have bearing (9), bearing (9) cup joint with rotation axis (23).
5. The supporting device for grinding the thin-wall part as claimed in claim 4, wherein: the clamping springs (6) penetrate through the expansion blocks (5) in a co-movement mode, and the clamping springs (6) and the installation sleeve blocks (2) are coaxially arranged.
6. The supporting device for grinding the thin-wall part as claimed in claim 1, wherein: one side of the expanding block (5) is provided with a buckling block (7), one side of the buckling block (7) and one side of the expanding block (5) far away from the installation sleeve block (2) are parallel and level and are arc surfaces, and one side of the buckling block (7) facing the installation sleeve block (2) is also an arc surface.
7. The supporting device for grinding the thin-wall part as claimed in claim 2, wherein: an auxiliary chamber (14) used for expanding the moving track of the connecting shaft (18) is arranged on one side, opposite to the main limiting block (15), of the auxiliary main chamber (10), and an auxiliary limiting block (16) used for supporting the connecting shaft (18) is arranged on the inner wall of the auxiliary chamber (14).
8. The supporting device for grinding the thin-wall part as claimed in claim 3, wherein: threaded column (20) insert inside one end of cushion cylinder (19) and be fixed with limiting plate (24), limiting groove (28) have been seted up on limiting plate (24) lateral wall, vertical spacing (27) of seting up in embedding limiting groove (28) on cushion cylinder (19) inner wall.
9. The supporting device for grinding the thin-wall part as claimed in claim 8, wherein: be provided with first spring (25) between limiting plate (24) and the inside diapire of cushion cylinder (19), be provided with second spring (26) between limiting plate (24) and the inside roof of cushion cylinder (19), second spring (26) cover is established on screw post (20).
10. The supporting device for grinding the thin-wall part as claimed in claim 1, wherein: connecting seat (3) all are provided with spacing arch (11) towards the both ends of the inside one end of supplementary main cavity room (10), spacing arch (11) and supplementary main cavity room (10) inner wall sliding contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210438194.8A CN114536218A (en) | 2022-04-25 | 2022-04-25 | Supporting device for polishing thin-wall parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210438194.8A CN114536218A (en) | 2022-04-25 | 2022-04-25 | Supporting device for polishing thin-wall parts |
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| Publication Number | Publication Date |
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| CN114536218A true CN114536218A (en) | 2022-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210438194.8A Withdrawn CN114536218A (en) | 2022-04-25 | 2022-04-25 | Supporting device for polishing thin-wall parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114536218A (en) |
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| CN111113091A (en) * | 2019-12-26 | 2020-05-08 | 铜陵市逸欣机械制造有限公司 | Boring clamp for arm hole of automobile steering gear box |
| CN111421343A (en) * | 2020-04-02 | 2020-07-17 | 浙江师范大学 | Supporting device for polishing thin-wall parts |
| CN112959120A (en) * | 2021-03-31 | 2021-06-15 | 深圳市太美亚电子科技有限公司 | Rapid centering device for processing cylinder center hole by utilizing handheld electric tool |
| CN113146297A (en) * | 2021-04-05 | 2021-07-23 | 厦门戴承贸易有限公司 | Self-centering metal pipe stable clamping auxiliary equipment |
| CN113770875A (en) * | 2021-09-23 | 2021-12-10 | 深圳市七客诚品数码有限公司 | Smart electric meter injection moulding shell body forming and processing equipment |
| CN215200723U (en) * | 2021-01-21 | 2021-12-17 | 无锡市康尔迪机械制造有限公司 | Internal-supporting type fixing clamp for compressor casing |
| CN215317652U (en) * | 2021-07-02 | 2021-12-28 | 江西鑫菲洋高分子材料科技有限公司 | Polishing device for rubber ring |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08187639A (en) * | 1994-11-01 | 1996-07-23 | O G A Kk | Expanding mandrel |
| US20150224582A1 (en) * | 2014-02-11 | 2015-08-13 | Rolls-Royce Plc | Fixture |
| CN107984248A (en) * | 2016-10-27 | 2018-05-04 | 北京遥感设备研究所 | A kind of Thin-wall Revolving Part endoporus support device |
| CN111113091A (en) * | 2019-12-26 | 2020-05-08 | 铜陵市逸欣机械制造有限公司 | Boring clamp for arm hole of automobile steering gear box |
| CN111421343A (en) * | 2020-04-02 | 2020-07-17 | 浙江师范大学 | Supporting device for polishing thin-wall parts |
| CN215200723U (en) * | 2021-01-21 | 2021-12-17 | 无锡市康尔迪机械制造有限公司 | Internal-supporting type fixing clamp for compressor casing |
| CN112959120A (en) * | 2021-03-31 | 2021-06-15 | 深圳市太美亚电子科技有限公司 | Rapid centering device for processing cylinder center hole by utilizing handheld electric tool |
| CN113146297A (en) * | 2021-04-05 | 2021-07-23 | 厦门戴承贸易有限公司 | Self-centering metal pipe stable clamping auxiliary equipment |
| CN215317652U (en) * | 2021-07-02 | 2021-12-28 | 江西鑫菲洋高分子材料科技有限公司 | Polishing device for rubber ring |
| CN113770875A (en) * | 2021-09-23 | 2021-12-10 | 深圳市七客诚品数码有限公司 | Smart electric meter injection moulding shell body forming and processing equipment |
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Application publication date: 20220527 |