CN109848802B - Abrasive belt polishing power head and using method thereof - Google Patents
Abrasive belt polishing power head and using method thereof Download PDFInfo
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- CN109848802B CN109848802B CN201910115146.3A CN201910115146A CN109848802B CN 109848802 B CN109848802 B CN 109848802B CN 201910115146 A CN201910115146 A CN 201910115146A CN 109848802 B CN109848802 B CN 109848802B
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Abstract
The abrasive belt polishing power head comprises a tool handle, a friction wheel, an abrasive belt folding mechanism and a polishing wheel, wherein the tool handle is connected with the friction wheel through a transmission mechanism, the abrasive belt is wound on the abrasive belt folding mechanism and the polishing wheel, and the friction wheel is matched with the abrasive belt folding mechanism and drives the abrasive belt to run through the abrasive belt. The abrasive belt polishing power head is arranged in a main shaft of a machine tool, the main shaft is connected with a tool handle, the tool handle is driven by the main shaft to drive a friction wheel to rotate through a transmission mechanism, an abrasive belt rotates under the friction drive of the friction wheel and an abrasive belt folding mechanism, and the abrasive belt rotates to the polishing wheel to perform polishing operation. The abrasive belt folding mechanism is arranged, so that the length of the abrasive belt is effectively increased, the polishing life of the abrasive belt is prolonged, and the frequency of replacing the abrasive belt is reduced.
Description
Technical Field
The invention relates to the technical field of abrasive belt polishing power heads, in particular to an abrasive belt polishing power head and a using method thereof.
Background
Polishing, also called mirror finishing, is a planar finishing process for producing a flat surface with a small finished deformation layer and no scratches. Numerical control polishing is one of the polishing modes mainly adopted by the blade parts of the prior aero-engine, and not only can the surface roughness of the machined parts be obviously reduced and the surface quality be improved, but also the fatigue strength and the stability of the parts can be improved. At present, numerical control polishing mainly comprises abrasive belt wheel polishing, abrasive belt grinding and polishing and a multi-axis machine. The main disadvantage of belt polishing is that the belt life is too short and the belt needs to be replaced frequently. This is a disadvantage of the prior art.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the abrasive belt polishing power head, which effectively increases the length of an abrasive belt, prolongs the polishing service life of the abrasive belt and reduces the frequency of replacing the abrasive belt.
The scheme is realized by the following technical measures: the abrasive belt polishing power head comprises a tool handle, a friction wheel, an abrasive belt folding mechanism and a polishing wheel, wherein the tool handle is connected with the friction wheel through a transmission mechanism, the abrasive belt is wound on the abrasive belt folding mechanism and the polishing wheel, and the friction wheel is matched with the abrasive belt folding mechanism and drives the abrasive belt to run through the abrasive belt. Adopt this technical scheme, pack into the main shaft of lathe with abrasive band polishing unit head, the main shaft is connected with the handle of a knife, the main shaft belongs to prior art with being connected of handle of a knife, and no longer give unnecessary details here, the handle of a knife drives the friction pulley through drive mechanism and rotates under the drive of main shaft, and the abrasive band rotates under the friction drive of friction pulley and abrasive band folding mechanism, and the abrasive band is changeed to the polishing wheel and is carried out the polishing operation. The abrasive belt folding mechanism is arranged, so that the length of the abrasive belt is effectively increased, the polishing life of the abrasive belt is prolonged, and the frequency of replacing the abrasive belt is reduced.
Preferably, the friction wheel and the abrasive belt folding mechanism are arranged in the machine case, the polishing wheel is arranged outside the machine case, the abrasive belt folding mechanism comprises a plurality of reversing wheels, the abrasive belt is sequentially wound on the reversing wheels and the polishing wheel, and the friction wheel and one or more of the reversing wheels are matched to frictionally drive the abrasive belt to rotate. By adopting the technical scheme, the abrasive belt is wound on the reversing wheels and the polishing wheels according to a certain sequence, the length of the abrasive belt is effectively increased, the abrasive belt is positioned between the friction wheel and one or more reversing wheels, and the abrasive belt is driven to run by the friction between the friction wheel and one or more reversing wheels.
Preferably, the lower extreme of handle of a knife is installed in casing I, bevel gear I is installed to the lower extreme of handle of a knife, drive mechanism is including installing the driven shaft in casing I, install on the driven shaft with the I meshed bevel gear II of bevel gear, the left end of driven shaft is worn out casing I and is got into quick-witted incasement, friction pulley fixed mounting is on the driven shaft. By adopting the technical scheme, the tool handle is driven by the main shaft to rotate, the tool handle drives the bevel gear I to rotate, the bevel gear I drives the driven shaft to rotate through the bevel gear II, and the friction wheel rotates along with the driven shaft.
Preferably, the tool handle is provided with a bearing I, an inner ring of the bearing I is installed in a matched mode with the tool handle, and an outer ring of the bearing I is installed in a matched mode with a bearing hole I in the shell I. By adopting the technical scheme, the knife handle can rotate in the shell I conveniently.
Preferably, a bearing II is installed on the driven shaft, the inner ring of the bearing II is installed with the driven shaft in a matched mode, and the outer ring of the bearing II is installed with a bearing hole II in the shell I in a matched mode. By adopting the technical scheme, the driven shaft can rotate in the shell I conveniently, and then the friction wheel is driven to rotate.
Preferably, one side of casing I is fixed and is provided with casing II, be provided with the shoulder hole in the casing II, be provided with spacing axle in the shoulder hole, the cover is equipped with compression spring I on the spacing axle, the upper end fixedly connected with spacer pin of spacing axle, be provided with the spacing hole that matches with the spacer pin on the handle of a knife. By adopting the technical scheme, the limiting shaft is a stepped shaft, when the abrasive belt polishing power head is installed in the main shaft of the machine tool, the end surface of the main shaft presses the limiting shaft in the shell II, the limiting shaft presses the compression spring I, so that the limiting pin is separated from the limiting hole in the tool handle, and the tool handle can rotate relative to the shell I; after the abrasive belt polishing power head is taken down from the main shaft, the end face of the main shaft is separated from the limiting shaft, the compression spring I drives the limiting shaft upwards under the action of restoring force, the limiting pin enters the limiting hole in the tool handle, and the tool handle and the shell I do not rotate relatively any more.
Preferably, the shell II is fixedly arranged on a lantern ring with an opening, the lantern ring is sleeved on the shell I, and the lantern ring can tightly support the shell I through a fastening bolt. By adopting the technical scheme, when the tool shank is connected with the main shaft of the machine tool, the tightening bolt is screwed to hold the lantern ring tightly on the shell I, the upper end of the limiting shaft is clamped into the clamping groove on the end surface of the main shaft of the machine tool, the limiting shaft limits the rotation of the shell I and the shell II, after the tightening bolt is loosened, the rotatable shell I of an operator rotates around the axis of the tool shank, and then the angle of the polishing wheel is adjusted.
Preferably, the reversing wheel is rotatably connected with an inner plate of the chassis; the machine case is fixedly connected with a mounting plate, and the polishing wheel is rotatably connected with the mounting plate.
Preferably, install set nut I on the handle of a knife, bearing I sets up the top at set nut I, the top of bearing I is provided with gasket I, the top of gasket I be provided with I fixed connection's of casing last gland, it is provided with the skeleton oil blanket to go up between gland and the handle of a knife. By adopting the technical scheme, the positioning nut I, the gasket I and the upper gland play an axial positioning role in the bearing I, so that the bevel gear I is effectively meshed with the bevel gear II, and the tool shank cannot jump up and down.
Preferably, the bearing II comprises a left bearing II and a right bearing II, a positioning sleeve I is arranged between the left bearing II and the friction wheel, the left bearing II is positioned between the positioning sleeve I and a shaft shoulder of the driven shaft, a gasket II is arranged at the left end of the left bearing II, and a left end cover fixedly connected with the shell I is arranged at the left end of the gasket II; right bearing II is installed on the tip of bevel gear II, at the right-hand member of right bearing II, install positioning nut II on the driven shaft, the right side of driven shaft is provided with the right-hand member lid with I fixed connection of casing, be provided with gasket III between right-hand member lid and the right bearing II. By adopting the technical scheme, the shaft shoulders on the positioning sleeve I and the driven shaft play a role in axial positioning for the left bearing II, and the positioning nut II and the bevel gear II play a role in axial positioning for the right bearing II, so that the bevel gear II is effectively meshed with the bevel gear I, and the driven shaft cannot move left and right.
Preferably, the reversing wheel is connected with the connecting shaft I through a bearing III, the connecting shaft I is fixedly connected with the case, an inner ring of the bearing III is installed in a matched mode with the connecting shaft I, an outer ring of the bearing III is installed in a matched mode with the reversing wheel, and the bearing III is axially positioned through an axial positioning mechanism I.
Preferably, axial positioning mechanism I is including the annular location arch I that the cover established the location sleeve II on connecting axle I and the I left end of connecting axle and set up.
Preferably, the polishing wheel is connected with the connecting shaft II through a bearing IV, the connecting shaft II is fixedly connected with the mounting plate, an inner ring of the bearing IV is installed in a matched mode with the connecting shaft II, an outer ring of the bearing IV is installed in a matched mode with the polishing wheel, and the bearing IV is axially positioned through an axial positioning mechanism II.
Preferably, the axial positioning mechanism II comprises a positioning sleeve III sleeved on the connecting shaft II and an annular positioning bulge II arranged at the left end of the connecting shaft II.
Preferably, at least one elastic tensioning reversing wheel is arranged in the reversing wheels, and the elastic tensioning reversing wheel is connected with an elastic tensioning mechanism. By adopting the technical scheme, the elastic tensioning mechanism can ensure that the abrasive belt is in a tensioning state, and the influence of elastic deformation of the abrasive belt after the abrasive belt is used for a period of time is avoided.
Preferably, the elastic tensioning reversing wheel is connected with a connecting shaft III through a bearing V, the connecting shaft III is fixedly connected with the sliding plate, an inner ring of the bearing V is installed in a matched mode with the connecting shaft III, an outer ring of the bearing V is installed in a matched mode with the elastic tensioning reversing wheel, the bearing V is axially positioned through an axial positioning mechanism III, the sliding plate can slide in a sliding groove of an inner plate of the case, a base fixedly connected with the inner plate of the case is arranged at the lower end of the sliding plate, and a compression spring II is arranged between the sliding plate and the base. By adopting the technical scheme, the compression spring II provides enough supporting force for the elastic tensioning reversing wheel through the sliding plate, so that the abrasive belt is kept in a tensioning state.
Preferably, the axial positioning mechanism III comprises a positioning sleeve IV sleeved on the connecting shaft III and an annular positioning bulge III arranged at the left end of the connecting shaft III.
All the other reversing wheels are connected with a connecting shaft I through a bearing III, the connecting shaft I is fixedly connected with a case, an inner ring of the bearing III is installed in a matched mode with the connecting shaft I, an outer ring of the bearing III is installed in a matched mode with the reversing wheels, and the bearing III is axially positioned through an axial positioning mechanism I.
Preferably, axial positioning mechanism I is including the annular location arch I that the cover established the location sleeve II on connecting axle I and the I left end of connecting axle and set up.
Preferably, the polishing wheel is connected with the connecting shaft II through a bearing IV, the connecting shaft II is fixedly connected with the mounting plate, an inner ring of the bearing IV is installed in a matched mode with the connecting shaft II, an outer ring of the bearing IV is installed in a matched mode with the polishing wheel, and the bearing IV is axially positioned through an axial positioning mechanism II.
Preferably, the axial positioning mechanism II comprises a positioning sleeve III sleeved on the connecting shaft II and an annular positioning bulge II arranged at the left end of the connecting shaft II.
Preferably, when the limiting pin on the limiting shaft is separated from the limiting hole on the tool handle, the angle of the polishing wheel can be changed by rotating the rotating shell I around the tool handle; preferably, the angle of the polishing wheel can be changed by changing the included angle between the axis of the tool shank and the axis of the driven shaft. By adopting the technical scheme, the abrasive belt polishing power heads with different included angles between the axes of the tool handles and the axis of the driven shaft are arranged on the machining center, when different regions of a workpiece are polished and machined, the abrasive belt polishing power heads with different included angles between the axes of the tool handles and the axis of the driven shaft can be selected, and then the angle of a proper polishing wheel is adjusted by rotating the rotating shell I around the tool handle, so that the applicability of the abrasive belt polishing power heads is improved.
A use method of a belt polishing power head comprises the following steps: a group of abrasive belt polishing power heads with different included angles between the axis of the tool holder and the axis of the driven shaft are arranged on the processing center, the fastening bolt is screwed to tightly hold the lantern ring on the shell I, during polishing, selecting a proper abrasive belt polishing power head to be connected with a main shaft of a machine tool, pressing a limiting shaft in a shell II downwards on the end face of the main shaft, pressing a compression spring I downwards by the limiting shaft, so that the limiting pin is separated from the limiting hole in the cutter handle, the cutter handle can rotate relative to the shell I, meanwhile, the upper end of the limiting shaft enters the clamping groove on the end surface of the main shaft, the shell I and the shell II are further positioned, the tool shank is driven by the main shaft to rotate, the bevel gear I is driven by the tool shank to be meshed with the bevel gear II to drive the driven shaft to rotate, the driven shaft drives a friction wheel to rotate, the friction wheel is matched with a reversing wheel, and an abrasive belt is driven to rotate through a friction abrasive belt;
preferably, the fastening bolt is loosened, the rotatable shell I rotates around the axis of the tool holder to adjust the angle of the polishing wheel, and after the adjustment is completed, the fastening bolt is screwed to hold the lantern ring tightly on the shell I;
preferably, when the angle of the polishing wheel required by the part of the workpiece to be polished cannot be completed by rotating the shell I, the abrasive belt polishing power head with different included angles between the axis of the tool handle and the axis of the driven shaft can be replaced, and the operation is repeated.
Adopt this technical scheme, set up the abrasive band polishing unit head that the contained angle between the axis of a set of handle of a knife and the axis of driven shaft is different according to the work piece that will polish, on same abrasive band polishing unit head, the angle of polishing wheel is changed to accessible rotary shell I, when the required angle of polishing wheel in the position of the work piece that will polish can not accomplish through rotary shell I, the abrasive band polishing unit head that the contained angle is different between the axis of changing the handle of a knife and the axis of driven shaft realizes, the abrasive band polishing unit head that the contained angle is different between the axis that sets up a set of handle of a knife and the axis of driven shaft according to the work piece that polishes has effectually increased the suitability.
Therefore, compared with the prior art, the invention has prominent substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic view of the mounting structure of the reverse wheel;
fig. 5 is a schematic perspective view of embodiment 1 of the present invention (a cover plate of a chassis is not shown);
FIG. 6 is a front view structural schematic of FIG. 5;
fig. 7 is a schematic perspective view of embodiment 2 of the present invention (the cover plate of the chassis is not shown);
FIG. 8 is a schematic front view of the structure of FIG. 7;
FIG. 9 is a schematic structural view taken along the line A-A in FIG. 8;
fig. 10 is a schematic structural view of section B-B in fig. 8.
In the figure: 1-knife handle, 2-bevel gear I, 3-positioning nut I, 4-shell I, 5-bearing I, 6-gasket I, 7-upper gland, 8-framework oil seal, 9-driven shaft, 10-bevel gear II, 11-right bearing II, 12-positioning nut II, 13-gasket III, 14-right end cover, 15-left bearing II, 16-gasket II, 17-positioning sleeve I, 18-left end cover, 19-friction wheel, 20-machine case, 20.1-inner plate of machine case, 20.1.1-chute, 21-cover plate of machine case, 22-reversing wheel, 23-mounting plate, 24-polishing wheel, 25-abrasive belt, 26-shell II, 27-limiting shaft, 28-compression spring I, 29-limiting pin, 30-positioning nut III, 31-connecting shaft I, 31.1-annular positioning protrusion I, 32-bearing III, 33-positioning sleeve II, 34-connecting shaft II, 34.1-annular positioning protrusion II, 35-bearing IV, 36-positioning sleeve III, 37-elastic tensioning reversing wheel, 38-connecting shaft III, 38.1-annular positioning protrusion III, 39-bearing V, 40-positioning sleeve IV, 41-sliding plate, 42-base, 43-compression spring II, 44-gasket IV, 45-collar, 45.1-opening, 46-fastening bolt, 47-fixing bolt and 48-positioning ring.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments and drawings. 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 scope of protection of this patent.
As shown in fig. 1-6, an abrasive belt polishing power head includes a tool handle 1, a friction wheel 19, an abrasive belt 25, an abrasive belt folding mechanism, and a polishing wheel 24, wherein the tool handle 1 is connected to the friction wheel 19 through a transmission mechanism, the abrasive belt 25 is wound around the abrasive belt folding mechanism and the polishing wheel 24, and the friction wheel 19 is matched with the abrasive belt folding mechanism to drive the abrasive belt 25 to operate through the abrasive belt. The abrasive belt polishing power head is arranged in a main shaft of a machine tool, the main shaft is connected with a tool handle 1, the connection of the main shaft and the tool handle belongs to the prior art, and is not described again, the tool handle 1 drives a friction wheel 19 to rotate through a transmission mechanism under the driving of the main shaft, an abrasive belt 25 rotates under the driving of the friction wheel 19 and an abrasive belt folding mechanism, and the abrasive belt 25 rotates to a polishing wheel 24 to perform polishing operation. The abrasive belt folding mechanism is arranged, so that the length of the abrasive belt 25 is effectively increased, the polishing life of the abrasive belt 25 is prolonged, and the frequency of replacing the abrasive belt 25 is reduced.
In the technical scheme, the friction wheel 19 and the abrasive belt folding mechanism are arranged in the machine case 20, the polishing wheel 24 is arranged outside the machine case 20, the abrasive belt folding mechanism comprises a plurality of reversing wheels 22, the abrasive belt 25 is sequentially wound on the reversing wheels 22 and the polishing wheel 24, and the friction wheel 19 and one or more of the reversing wheels 22 are matched with friction to drive the abrasive belt 25 to run. A plurality of reversing wheels 22 are arranged, the abrasive belt 25 is wound on the plurality of reversing wheels 22 and the polishing wheel 24 according to a certain sequence, the length of the abrasive belt 25 is effectively increased, the abrasive belt 25 is positioned between the friction wheel 19 and one or more reversing wheels 22, and the abrasive belt 25 is driven to run by the friction between the friction wheel 19 and one or more reversing wheels 22.
In this technical scheme, the lower extreme of handle of a knife 1 is installed in casing I4, bevel gear I2 is installed to the lower extreme of handle of a knife 1, drive mechanism is including installing the driven shaft 9 in casing I4, install the bevel gear II 10 with bevel gear I2 meshing on the driven shaft 9, the left end of driven shaft 9 is worn out casing I4 and is got into in quick-witted case 20, friction pulley 19 fixed mounting is on driven shaft 4. The tool handle 1 is driven by the main shaft to rotate, the tool handle 1 drives the bevel gear I2 to rotate, the bevel gear I2 drives the driven shaft 9 to rotate through the bevel gear II 10, and the friction wheel 19 rotates along with the driven shaft 4.
In this technical scheme, handle of a knife 1 is connected with casing I4 through bearing I5 install bearing I5 on the handle of a knife 1, the inner circle and the 1 cooperation installation of handle of a knife of bearing I5, the outer lane of bearing I5 and the I cooperation installation of bearing hole in the casing I4 make things convenient for handle of a knife 1 at I4 internal rotations of casing.
In this technical scheme, driven shaft 9 is connected with casing I4 through bearing II, install bearing II on the driven shaft 9, the inner circle and the driven shaft 9 cooperation installation of bearing II, the outer lane of bearing II and the II cooperation installations of bearing hole in the casing I4 make things convenient for driven shaft 9 at casing I4 internal rotation, and then drive friction pulley 19 and rotate.
In this technical scheme, one side fixedly connected with casing II 26 of casing I4, be provided with the shoulder hole in the casing II 26, be provided with spacing axle 27 in the shoulder hole, the cover is equipped with compression spring I28 on the spacing axle 27, the upper end fixedly connected with spacer pin 29 of spacing axle 27, be provided with the spacing hole that matches with spacer pin 29 on the handle of a knife 1. Spacing axle 27 is the shoulder shaft, the shoulder hole is the through-hole, spacing axle 27 runs through the shoulder hole, shoulder hole upper end opening is big, the lower extreme opening is little, spacing 27 upper end sizes are big, the lower extreme size is little, compression spring I28 sets up between shoulder hole step and spacing 27 reducing departments, the lower extreme of spacing axle 27 is provided with the constant head tank, be provided with holding ring 48 in the constant head tank. When the abrasive belt polishing power head is installed in a main shaft of a machine tool, the end face of the main shaft presses the limiting shaft 27 in the shell II 26, the limiting shaft 27 presses the compression spring I28 downwards, the limiting pin 29 is separated from the limiting hole in the tool shank 1, and the tool shank 1 can rotate relative to the shell I4; when the abrasive belt polishing power head is taken down from the main shaft, the end face of the main shaft is separated from the limiting shaft 27, the compression spring I28 drives the limiting shaft 27 upwards under the action of restoring force, the limiting pin 29 enters the limiting hole in the tool handle 1, the tool handle 1 and the shell I4 do not rotate relatively any more, and the locating ring 48 conducts limiting when the limiting shaft 27 goes upwards.
In this technical scheme, casing II 26 is fixed to be set up on the lantern ring 45 that has opening 45.1 through fixing bolt 47, lantern ring 45 cover is established on casing I4, lantern ring 45 sets up the below at last gland 7, go up gland 7 and the ladder on the casing I4 can fix a position lantern ring 45 from top to bottom, lantern ring 45 accessible fastening bolt 46 reports tight casing I4. Be provided with on the terminal surface of the main shaft of lathe with spacing axle 27 upper end complex draw-in groove, when the main shaft of handle of a knife 1 and lathe is connected, fastening bolt 46 of screwing holds lantern ring 45 tightly on casing I4, in the draw-in groove on the terminal surface of the main shaft of lathe is gone into to the upper end card of spacing axle 27, spacing axle 27 restricts the rotation of casing I4 and casing II 26, loosens fastening bolt 46 back, and rotatable casing I4 of operating personnel rotates round the axis of handle of a knife 1, and then the angle of adjustment polishing wheel 24.
In the present technical solution, the reversing wheel 22 is rotatably connected with the inner plate 20.1 of the chassis 20; the case 20 is fixedly connected with a mounting plate 23, and the polishing wheel 24 is rotatably connected with the mounting plate 23.
In this technical scheme, install set nut I3 on the handle of a knife 1, bearing I5 sets up the top at set nut I3, the top of bearing I5 is provided with gasket I6, the top of gasket I6 be provided with I4 fixed connection's of casing last gland 7, it is provided with skeleton oil blanket 8 to go up between gland 7 and the handle of a knife 1, the below of bearing I5 is provided with gasket IV 44, gasket IV 44 sets up and establishes the periphery at set nut I3 at the lower extreme of dead eye I and cover. The positioning nut I3, the gasket I6 and the upper gland 7 play an axial positioning role in the bearing I5, so that the bevel gear I2 is effectively meshed with the bevel gear II 10, and the tool shank 1 cannot leap up and down.
In the technical scheme, the bearing II comprises a left bearing II 15 and a right bearing II 11, a positioning sleeve I17 is arranged between the left bearing II 15 and a friction wheel 19, a positioning nut III 30 is arranged at the left end of the driven shaft 9, the left bearing II 15 is positioned between the positioning sleeve I17 and a shaft shoulder of the driven shaft 9, a gasket II 16 is arranged at the left end of the left bearing II 15, and a left end cover 18 fixedly connected with the shell I4 is arranged at the left end of the gasket II 16; right bearing II 11 is installed on the tip of bevel gear II 10, and the right-hand member of right bearing II 11, install positioning nut II 12 on the driven shaft 9, the right side of driven shaft 9 is provided with the right-hand member lid 14 with I4 fixed connection of casing, be provided with gasket III 13 between right-hand member lid 14 and the right bearing II 11. The shaft shoulders on the positioning sleeve I17 and the driven shaft 9 play an axial positioning role in the left bearing II 15, and the positioning nut II 12 and the bevel gear II 10 play an axial positioning role in the right bearing II 11, so that the bevel gear II 2 is effectively meshed with the bevel gear I10, and the driven shaft 4 cannot move left and right.
In the technical scheme, the reversing wheel 22 is rotatably connected with a connecting shaft I31 through a bearing III 32, the connecting shaft I31 is fixedly connected with the case 20, an inner ring of the bearing III 32 is installed in a matched manner with the connecting shaft I31, an outer ring of the bearing III 32 is installed in a matched manner with the reversing wheel 22, and the bearing III 32 is axially positioned through an axial positioning mechanism I; axial positioning mechanism I is including the annular location arch I31.1 that the cover established location sleeve II 33 and the I31 left end of connecting axle on connecting axle I31 and set up.
In the technical scheme, the polishing wheel 24 is rotatably connected with a connecting shaft II 34 through a bearing IV 35, the connecting shaft II 34 is fixedly connected with the mounting plate 23, an inner ring of the bearing IV 35 is installed in a matched manner with the connecting shaft II 34, an outer ring of the bearing IV 35 is installed in a matched manner with the polishing wheel 24, and the bearing IV 35 is axially positioned through an axial positioning mechanism II; the axial positioning mechanism II comprises a positioning sleeve III 36 sleeved on the connecting shaft II 34 and an annular positioning bulge II 34.1 arranged at the left end of the connecting shaft II 34.
The upper end cover 7, the left end cover 18 and the right end cover 14 are fixedly connected with the shell I4 through bolts.
In the technical scheme, when the limiting pin 29 on the limiting shaft 27 is separated from the limiting hole on the tool handle 1, the angle of the polishing wheel 24 can be changed by rotating the rotating shell I4 around the tool handle 1; the angle of the polishing wheel can be changed by changing the included angle between the axis of the tool holder 1 and the axis of the driven shaft 9, and the axis of the driven shaft 9 is parallel to the axis of the connecting shaft I31 and the axis of the connecting shaft II 34.
A use method of a belt polishing power head comprises the following steps: a group of abrasive belt polishing power heads with different included angles between the axis of a tool handle 1 and the axis of a driven shaft 9 are arranged on a machining center, a lantern ring 45 is tightly held on a shell I4 by screwing a fastening bolt 46, during polishing, a proper abrasive belt polishing power head is selected to be connected with a main shaft of a machine tool, the end face of the main shaft presses a limiting shaft 27 in a shell II 26, the limiting shaft 27 presses a compression spring I28 downwards, a limiting pin 29 is separated from a limiting hole in the tool handle 1, the tool handle 1 can rotate relative to the shell I4, meanwhile, the upper end of the limiting shaft 27 enters a clamping groove in the end face of the main shaft to further position the shell I4 and the shell II 26, the tool handle 1 rotates under the driving of the main shaft, the bevel gear I2 is meshed with the bevel gear II 10 under the driving of the tool handle 1 to drive the driven shaft 9 to rotate, the driven shaft 9 drives a friction wheel 19 to rotate, and the friction, The abrasive belt 25 is driven in operation by the abrasive belt 25. Loosening the fastening bolt 46, rotating the rotatable shell I4 around the axis of the tool holder 1 to adjust the angle of the polishing wheel 24, and tightening the fastening bolt 46 to hold the lantern ring 45 on the shell I4 after the adjustment is completed; when the angle of the polishing wheel 24 required by the part of the workpiece to be polished cannot be completed by rotating the shell I4, the abrasive belt polishing power head with different included angles between the axis of the tool handle 1 and the axis of the driven shaft 9 can be replaced, and the operation is repeated.
Example 2
As shown in fig. 1-4 and 7-10, this embodiment is different from embodiment 1 in that there is at least one elastic tensioning reversing wheel 37 in the reversing wheel 22, and the elastic tensioning reversing wheel 37 is connected with an elastic tensioning mechanism, which is configured to ensure that the abrasive belt 25 is in a tensioned state and avoid the influence of elastic deformation of the abrasive belt 25 after a period of use.
In the technical scheme, the elastic tensioning reversing wheel is rotatably connected with a connecting shaft III 38 through a bearing V39, the connecting shaft III 38 is fixedly connected with a sliding plate 41, an inner ring of the bearing V39 is installed in a matched mode with the connecting shaft III 38, an outer ring of the bearing V39 is installed in a matched mode with the elastic tensioning reversing wheel 37, the bearing V39 is axially positioned through an axial positioning mechanism III, the sliding plate 41 can slide in a sliding groove 20.1.1 of an inner plate 20.1 of a case, a base 42 fixedly connected with the inner plate 20.1 of the case is arranged at the lower end of the sliding plate 41, a compression spring II 43 is arranged between the sliding plate 41 and the base 42, and a strip-shaped hole used for enabling the connecting shaft III 38 to move up and down is formed in the inner plate 20.. The compression spring ii 43 gives the elastic tensioning deflecting roller 37 sufficient supporting force via the slide plate 41 so that the sanding belt 25 remains tensioned.
In the technical scheme, the axial positioning mechanism III comprises a positioning sleeve IV 40 sleeved on the connecting shaft III 38 and an annular positioning bulge III 38.1 arranged at the left end of the connecting shaft III 38.
In this technical scheme, except that elasticity tensioning reverse wheel 37, remaining reverse wheel 22 passes through bearing III 32 and connecting axle I31 rotatable coupling, connecting axle I31 and quick-witted case 20 fixed connection, the inner circle and the I31 cooperation installation of connecting axle of bearing III 32, the outer lane and the 22 cooperation installation of reverse wheel of bearing III 32, bearing III 32 is through I axial positioning of axial positioning mechanism, axial positioning mechanism I is including the annular location arch I31.1 that the cover established the setting of locating sleeve II 33 and the I31 left end of connecting axle on connecting axle I31.
In this technical scheme, throwing aureola 24 passes through bearing IV 35 and II 34 rotatable coupling of connecting axle, II 34 of connecting axle and mounting panel 23 fixed connection, the inner circle of bearing IV 35 and II 34 cooperation installations of connecting axle, the outer lane of bearing IV 35 and the cooperation installation of throwing aureola 24, bearing IV 35 passes through II axial positioning of axial positioning mechanism, axial positioning mechanism II is including the annular positioning arch II 34.1 of establishing the setting of the sleeve III 36 of establishing on II 34 of connecting axle and II 34 left ends of connecting axle.
The axis of the connecting shaft I31 and the axis of the connecting shaft II 34 are arranged in parallel with the axis of the connecting shaft III 38.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features and inventive features disclosed herein.
Claims (10)
1. The abrasive belt polishing power head is characterized by comprising a tool handle, a friction wheel, an abrasive belt folding mechanism and a polishing wheel, wherein the tool handle is connected with the friction wheel through a transmission mechanism, the abrasive belt is in a closed-loop structure, the abrasive belt is wound on the abrasive belt folding mechanism and the polishing wheel, and the friction wheel is matched with the abrasive belt folding mechanism and drives the abrasive belt to circularly operate through the abrasive belt; the abrasive belt folding mechanism comprises a plurality of reversing wheels, the abrasive belt is sequentially wound on the reversing wheels and the polishing wheels, the friction wheels and one or more reversing wheels are matched with the one or more reversing wheels to drive the abrasive belt to run, the abrasive belt penetrates through the space between the friction wheels and the reversing wheels, and the friction wheels and the reversing wheels are indirectly abutted through the abrasive belt.
2. The abrasive belt polishing power head of claim 1, wherein: the friction wheel and the abrasive belt folding mechanism are arranged in the machine case, and the polishing wheel is arranged outside the machine case.
3. The abrasive belt polishing power head of claim 2, wherein: the lower extreme of handle of a knife is installed in casing I, bevel gear I is installed to the lower extreme of handle of a knife, drive mechanism is including installing the driven shaft in casing I, install on the driven shaft with the I meshing of bevel gear II, the left end of driven shaft is worn out casing I and is got into quick-witted incasement, friction pulley fixed mounting is on the driven shaft.
4. The abrasive belt polishing power head of claim 3, wherein: the tool handle is provided with a bearing I, an inner ring of the bearing I is installed with the tool handle in a matched mode, and an outer ring of the bearing I is installed with a bearing hole I in the shell I in a matched mode;
a bearing II is mounted on the driven shaft, an inner ring of the bearing II is mounted with the driven shaft in a matched mode, and an outer ring of the bearing II is mounted with a bearing hole II in the shell I in a matched mode;
a shell II is fixedly connected to one side of the shell I, a stepped hole is formed in the shell II, a limiting shaft is arranged in the stepped hole, a compression spring I is sleeved on the limiting shaft, a limiting pin is fixedly connected to the upper end of the limiting shaft, and a limiting hole matched with the limiting pin is formed in the cutter handle; the shell II is fixedly arranged on a lantern ring with an opening, the lantern ring is sleeved on the shell I, and the lantern ring can tightly support the shell I through a fastening bolt.
5. The abrasive belt polishing power head of claim 2, wherein: the reversing wheel is rotatably connected with an inner plate of the case;
the machine case is fixedly connected with a mounting plate, and the polishing wheel is rotatably connected with the mounting plate.
6. The abrasive belt polishing power head of claim 4, wherein: the tool handle is provided with a positioning nut I, the bearing I is arranged above the positioning nut I, a gasket I is arranged above the bearing I, an upper gland fixedly connected with the shell I is arranged above the gasket I, and a framework oil seal is arranged between the upper gland and the tool handle;
the bearing II comprises a left bearing II and a right bearing II, a positioning sleeve I is arranged between the left bearing II and the friction wheel, the left bearing II is positioned between the positioning sleeve I and a shaft shoulder of the driven shaft, a gasket II is arranged at the left end of the left bearing II, and a left end cover fixedly connected with the shell I is arranged at the left end of the gasket II;
right bearing II is installed on the tip of bevel gear II, at the right-hand member of right bearing II, install positioning nut II on the driven shaft, the right side of driven shaft is provided with the right-hand member lid with I fixed connection of casing, be provided with gasket III between right-hand member lid and the right bearing II.
7. The abrasive belt polishing power head of claim 5, wherein: the reversing wheel is connected with the connecting shaft I through a bearing III, the connecting shaft I is fixedly connected with the case, an inner ring of the bearing III is installed in a matched mode with the connecting shaft I, an outer ring of the bearing III is installed in a matched mode with the reversing wheel, and the bearing III is axially positioned through an axial positioning mechanism I;
the axial positioning mechanism I comprises a positioning sleeve II sleeved on the connecting shaft I and an annular positioning bulge I arranged at the left end of the connecting shaft I;
the polishing wheel is connected with a connecting shaft II through a bearing IV, the connecting shaft II is fixedly connected with an installation plate, an inner ring of the bearing IV is installed in a matched mode with the connecting shaft II, an outer ring of the bearing IV is installed in a matched mode with the polishing wheel, and the bearing IV is axially located through an axial locating mechanism II;
and the axial positioning mechanism II comprises a positioning sleeve III sleeved on the connecting shaft II and an annular positioning bulge II arranged at the left end of the connecting shaft II.
8. The abrasive belt polishing power head of claim 2, wherein: the reversing wheel is provided with at least one elastic tensioning reversing wheel, and the elastic tensioning reversing wheel is connected with an elastic tensioning mechanism;
the elastic tensioning reversing wheel is connected with a connecting shaft III through a bearing V, the connecting shaft III is fixedly connected with a sliding plate, an inner ring of the bearing V is installed with the connecting shaft III in a matched mode, an outer ring of the bearing V is installed with the elastic tensioning reversing wheel in a matched mode, the bearing V is axially positioned through an axial positioning mechanism III, the sliding plate can slide in a sliding groove of an inner plate of a case, a base fixedly connected with the inner plate of the case is arranged at the lower end of the sliding plate, and a compression spring II is arranged between the sliding plate and the base;
the axial positioning mechanism III comprises a positioning sleeve IV sleeved on the connecting shaft III and an annular positioning bulge III arranged at the left end of the connecting shaft III;
the other reversing wheels are connected with a connecting shaft I through a bearing III, the connecting shaft I is fixedly connected with a case, an inner ring of the bearing III is installed in a matched mode with the connecting shaft I, an outer ring of the bearing III is installed in a matched mode with the reversing wheels, and the bearing III is axially positioned through an axial positioning mechanism I;
the axial positioning mechanism I comprises a positioning sleeve II sleeved on the connecting shaft I and an annular positioning bulge I arranged at the left end of the connecting shaft I;
the polishing wheel is connected with a connecting shaft II through a bearing IV, the connecting shaft II is fixedly connected with an installation plate, an inner ring of the bearing IV is installed in a matched mode with the connecting shaft II, an outer ring of the bearing IV is installed in a matched mode with the polishing wheel, and the bearing IV is axially located through an axial locating mechanism II;
and the axial positioning mechanism II comprises a positioning sleeve III sleeved on the connecting shaft II and an annular positioning bulge II arranged at the left end of the connecting shaft II.
9. The abrasive belt polishing power head of claim 4, wherein: when the limiting pin on the limiting shaft is separated from the limiting hole on the tool handle, the angle of the polishing wheel can be changed by rotating the rotary shell I around the tool handle; the angle of the polishing wheel can be changed by changing the included angle between the axis of the tool holder and the axis of the driven shaft.
10. A method of using the belt sander power head of any of claims 1-9, the method comprising: a group of abrasive belt polishing power heads with different included angles between the axis of the tool holder and the axis of the driven shaft are arranged on the processing center, the fastening bolt is screwed to tightly hold the lantern ring on the shell I, during polishing, an appropriate abrasive belt polishing power head is selected to be connected with a main shaft of a machine tool, the end face of the main shaft presses a limiting shaft in a shell II, the limiting shaft presses a compression spring I, a limiting pin is separated from a limiting hole in a tool shank, the tool shank can rotate relative to the shell I, meanwhile, the upper end of the limiting shaft enters the clamping groove on the end face of the main shaft to further position the shell I and the shell II, the tool shank rotates under the driving of the main shaft, under the drive of the tool handle, the bevel gear I is meshed with the bevel gear II to drive the driven shaft to rotate, the driven shaft drives the friction wheel to rotate, and the friction wheel is matched with the reversing wheel and drives the abrasive belt to operate through the friction abrasive belt;
loosening the fastening bolt, rotating the rotatable shell I around the axis of the tool holder to adjust the angle of the polishing wheel, and screwing the fastening bolt to hold the lantern ring on the shell I after adjustment is completed;
when the angle of the polishing wheel required by the part of the workpiece to be polished cannot be completed by rotating the shell I, the abrasive belt polishing power head with different included angles between the axis of the tool shank and the axis of the driven shaft can be replaced, and the operation is repeated.
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| CN201910012953 | 2019-01-07 | ||
| CN2019100129532 | 2019-01-07 |
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| CN111037468A (en) * | 2019-12-30 | 2020-04-21 | 枣庄北航机床创新研究院有限公司 | Staggered shaft magnetic transmission device for polishing angle head |
| CN111136579A (en) * | 2020-02-14 | 2020-05-12 | 上海超硅半导体有限公司 | Guiding mechanism and polishing equipment |
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| CN206316430U (en) * | 2016-11-03 | 2017-07-11 | 中信戴卡股份有限公司 | A kind of modular cutting tool assembly |
| CN208100024U (en) * | 2018-04-10 | 2018-11-16 | 天津复印技术有限公司 | A kind of engineering drum end-o f-pipe -control equipment |
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| US5868857A (en) * | 1996-12-30 | 1999-02-09 | Intel Corporation | Rotating belt wafer edge cleaning apparatus |
| GB2416724B (en) * | 2005-04-22 | 2006-07-19 | Mao Shan Machinery Ind Co Ltd | A belt sander having a sand belt replacement apparatus |
| DE102008037205B3 (en) * | 2008-08-11 | 2009-12-17 | Heinz Adams | Vertical-turning-boring-milling-grinding machine for e.g. turning work piece, has vertical-turning-boring-milling-grinding pusher provided with turning tool retainer and combined boring-milling-grinding spindle |
| CN203779276U (en) * | 2014-03-31 | 2014-08-20 | 安吉德迈竹木机械有限公司 | Sanding device for four-face sander |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206316430U (en) * | 2016-11-03 | 2017-07-11 | 中信戴卡股份有限公司 | A kind of modular cutting tool assembly |
| CN208100024U (en) * | 2018-04-10 | 2018-11-16 | 天津复印技术有限公司 | A kind of engineering drum end-o f-pipe -control equipment |
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