CN110878627A - Putty sanding disc and polishing robot - Google Patents
Putty sanding disc and polishing robot Download PDFInfo
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- CN110878627A CN110878627A CN201911273908.9A CN201911273908A CN110878627A CN 110878627 A CN110878627 A CN 110878627A CN 201911273908 A CN201911273908 A CN 201911273908A CN 110878627 A CN110878627 A CN 110878627A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
- E04F21/16—Implements for after-treatment of plaster or the like before it has hardened or dried, e.g. smoothing-tools, profile trowels
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Abstract
The application relates to the technical field of putty polishing, in particular to a putty polishing disc and a polishing robot, which comprise a polishing circular plate, an installation shaft and a transmission shaft; one end of the mounting shaft is fixedly connected with the polishing circular plate, one end of the transmission shaft penetrates through the end face of the other side of the mounting shaft and extends to the inner cavity of the mounting shaft, and the other end of the transmission shaft is fixed with the rotating device; the transmission shaft is in circumferential clearance fit with the inner cavity of the mounting shaft and is axially and elastically connected with the inner cavity of the mounting shaft, so that the functions of axial flexible expansion and circumferential floatable adjustment of the polishing circular plate are realized when the polishing operation is performed through the rotating device; this application is axial elastic connection between the inner chamber of transmission shaft and installation axle to as the scalable flexible regulatory function of axial of plectane in the in-process of polishing, circumference clearance fit between the inner chamber of transmission shaft and installation axle makes and installs the fixed plectane of polishing of axle and carry out 360 circumference and float.
Description
Technical Field
The application relates to the technical field of putty polishing, in particular to a putty polishing disc and a polishing robot.
Background
Generally, in the process of building interior wall decoration, the fused putty is needed to be used for painting the wall surface, and a putty grinding machine is used for reducing the material of the painted putty after painting so as to ensure that the wall surface is smooth and bright and make a foundation for painting the wall surface.
Therefore, the quality of the putty polisher determines the polishing quality of the wall surface to a great extent. At present, although putty polishing operation can be realized to putty polishing device in the building market, because the unreasonable of design of polishing leads to its precision of polishing not high, can't realize the automation industry demand of accurate polishing.
Disclosure of Invention
The purpose of this application aims at solving one of foretell technical defect at least, and putty grinding device's among the particular prior art polishing precision is not high, can't realize the technical defect of the automation operation demand of accurate polishing.
In order to achieve the above object, the present application provides the following technical solutions:
the application provides a putty abrasive disc, it includes:
polishing the circular plate, the mounting shaft and the transmission shaft;
one end of the mounting shaft is fixedly connected with the polishing circular plate, one end of the transmission shaft penetrates through the end face of the other side of the mounting shaft and extends to the inner cavity of the mounting shaft, and the other end of the transmission shaft is fixed with the rotating device;
the transmission shaft is in circumferential clearance fit with the inner cavity of the installation shaft and is in elastic connection with the inner cavity of the installation shaft in the axial direction, so that the rotating device can achieve the functions of flexible expansion in the axial direction and floating adjustment in the circumferential direction of the polishing circular plate during polishing operation.
In one embodiment, a bayonet lock mounting hole is formed through the inner cavity part of the transmission shaft, which is positioned in the mounting shaft, and a slotted hole is formed through the surface of the mounting shaft, which is opposite to the bayonet lock mounting hole;
the transmission shaft is radially fixed with the mounting shaft through a clamping pin penetrating through the slotted hole and the clamping pin mounting hole; the bayonet lock is in clearance fit with the slotted hole and in interference fit with the bayonet lock mounting hole.
In one embodiment, two ends of the clamping pin are provided with grooves;
the mounting shaft is clamped with the groove in a matched manner through a shaft retainer ring so as to realize movable connection between the transmission shaft and the mounting shaft.
In one embodiment, the transmission shaft is provided with a bearing at the outer part of the mounting shaft, an impeller is fixed at the outer side of the bearing in the circumferential direction, and the impeller and the transmission shaft rotate relatively.
In one embodiment, a spring pressing mechanism is arranged between the grinding circular plate and the impeller;
the elastic pressing mechanisms are at least provided with three groups, and the three groups of elastic pressing mechanisms are uniformly distributed between the polishing circular plate and the impeller.
In one embodiment, the spring pressing mechanism comprises a guide post, a tower spring and an adjusting nut;
the tower spring is arranged between the polishing circular plate and the impeller, one end of the guide column penetrates through the surface of the impeller and extends into the tower spring, and the other end of the guide column is in threaded connection with the adjusting nut.
In one embodiment, one end of the guide post is locked with the grinding circular plate through a screw, and the other end of the guide post is limited and fixed with the impeller through the adjusting nut.
In one embodiment, the impeller comprises a hub, an impeller outer edge, small blades and large blades;
the hub is positioned in the center of the outer edge of the impeller, and the large blades and the small blades are uniformly distributed between the hub and the outer edge of the impeller at intervals.
In one embodiment, the outer edge of the impeller is annular, and a rim is arranged on the inner side of the impeller;
one end of each small blade is fixed with the hub, and the other end of each small blade is fixed with the rim through a spoke collinear with the small blade;
one end of the large blade is fixed with the hub, and the other end of the large blade is fixed with the rim;
the hub is fixed with the outer ring of the bearing through the bearing mounting hole, and the transmission shaft is fixed with the inner ring of the bearing.
In one embodiment, the number of the spokes is at least three, and guide post mounting holes are formed in the surfaces of the three groups of the spokes in a penetrating manner;
the guide post is inserted into the guide post mounting hole and extends into the tower spring, and the adjusting nut is arranged above the spoke; and the guide post mounting holes are in clearance fit with the guide posts.
The application also provides a polishing robot, which comprises a mechanical arm and the putty polishing disc in any one of the embodiments; the transmission shaft is connected to a rotating device on the mechanical arm, so that a polishing function is achieved through the rotating device.
The putty polishing disc and the polishing robot comprise polishing circular plates, mounting shafts and transmission shafts; one end of the mounting shaft is fixedly connected with the polishing circular plate, one end of the transmission shaft penetrates through the end face of the other side of the mounting shaft and extends to the inner cavity of the mounting shaft, and the other end of the transmission shaft is fixed with the rotating device; the transmission shaft is in circumferential clearance fit with the inner cavity of the installation shaft and is in elastic connection with the inner cavity of the installation shaft in the axial direction, so that the rotating device can achieve the functions of flexible expansion in the axial direction and floating adjustment in the circumferential direction of the polishing circular plate during polishing operation.
In this application, polish through installing hub connection between plectane and the transmission shaft, the transmission shaft is connected with rotating device to drive the installation axle and polish the plectane through rotating device and polish the operation. In the process of connecting the transmission shaft and the installation shaft, the end part of the transmission shaft opposite to the rotating device penetrates through and extends to the inner cavity of the installation shaft, and is axially and elastically connected with the inner cavity of the installation shaft to serve as an axially telescopic flexible adjusting function of the polishing circular plate in the polishing process; in addition, the transmission shaft is in circumferential clearance fit with the inner cavity of the installation shaft, so that the installation shaft can circumferentially float for 360 degrees around the transmission shaft, and the polishing circular plate fixed with the installation shaft is driven to circumferentially float for 360 degrees, so that the polishing effect of the polishing circular plate is further improved, and the flexible polishing function can be realized in the circumferential direction and the axial direction.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a putty sanding disc construction according to one embodiment;
FIG. 2 is an enlarged partial view of one embodiment between the mounting shaft and the rotating shaft;
FIG. 3a is a representation of a cross-sectional clearance in an embodiment of a shaft end circumferential float mechanism;
FIG. 3b is a representation of slot clearance in one embodiment of a shaft end circumferential float mechanism;
FIG. 3c is a representation of the gap between the slot and the detent in the floating mechanism for circumferentially floating the shaft end according to one embodiment;
FIG. 4 is a functional design feature representation of the mounting shaft and drive shaft of one embodiment;
FIG. 5a is a representation of one embodiment of a floating space implementation of a three-point biasing mechanism;
FIG. 5b is a schematic cross-sectional projection of a biasing mechanism according to one embodiment;
FIG. 6 is an illustration of an implementation of a biasing mechanism according to one embodiment;
FIG. 7 is an enlarged partial view of one embodiment of a biasing mechanism;
FIG. 8 is a schematic view of an impeller configuration according to one embodiment.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Generally, in the process of building interior wall decoration, the fused putty is needed to be used for painting the wall surface, and a putty grinding machine is used for reducing the material of the painted putty after painting so as to ensure that the wall surface is smooth and bright and make a foundation for painting the wall surface.
Therefore, the quality of the putty polisher determines the polishing quality of the wall surface to a great extent. At present, although putty polishing operation can be realized to putty polishing device in the building market, because the unreasonable of design of polishing leads to its precision of polishing not high, can't realize the automation industry demand of accurate polishing.
In addition, in the prior art, the related patent documents of the polishing optimize the putty polishing operation mode to a certain extent, and a built-in dust collection mechanism is provided, but the technology is still imperfect, a feedback unit and a process flexible design are not introduced, and the dust collection mode required by polishing matched with the operation of a robot is not provided, so that the technology is deficient in the aspect.
The implementation of this application is based on the equipment that the construction of polishing of robot automation and intellectuality will carry on the application, as terminal execution equipment, to the not enough and needs the place of improving that prior art product faced, this application aims at providing a polishing dish that has the unsteady balanced structure of impeller, emphatically solves the structural technical problem who floats and polish, so the functional structure design that this application provided to the problem point mainly contains: the structural design of axial and axial floating allowance in the internal structure of the polishing disc needs to be emphasized, the tail end flexible polishing circular plate can be reset automatically, and the technical difficulties of the design of an elastic mechanism capable of adjusting reset prepressure, the integrated functional structural design of the impeller compactness and integrating dust absorption and supporting functions, the rotation design of integral symmetry and the like are solved, so that the performance of the polishing device is improved, and the polishing device is well applied to robot automation operation, and the specific scheme is as follows:
in one embodiment, as shown in FIG. 1, FIG. 1 is a schematic view of a putty sanding disc construction of one embodiment; the application provides a putty abrasive disc, it includes: polishing the circular plate 1, mounting the shaft 2 and the transmission shaft 3.
One end of the mounting shaft 2 is fixedly connected with the polishing circular plate 1, one end of the transmission shaft 3 penetrates through the end face of the other side of the mounting shaft 2 and extends to the inner cavity of the mounting shaft 2, and the other end of the transmission shaft 3 is fixed with the rotating device.
And, the transmission shaft 3 with the inner chamber circumference clearance fit of installation axle 2, axial elastic connection to when polishing the operation through rotating device, realize polishing the flexible and the floatable regulatory function of circumference of plectane 1.
In this application, polish and be connected through installation axle 2 between plectane 1 and the transmission shaft 3, transmission shaft 3 is connected with rotating device to drive installation axle 2 and polish plectane 1 through rotating device and polish the operation.
Specifically, in the process of connecting the transmission shaft 3 and the installation shaft 2, the end part of the transmission shaft 3 opposite to the rotating device penetrates through the inner cavity extending to the installation shaft 2 and is elastically connected with the inner cavity of the installation shaft 2 in the axial direction, so as to serve as the axial telescopic flexible adjustment of the polishing circular plate 1 in the polishing process.
Further, circumference clearance fit between the inner chamber of transmission shaft 3 and installation axle 2 for installation axle 2 can carry out 360 circumference around transmission shaft 3 and float, and drive and install the fixed plectane 1 of polishing of axle 2 and carry out 360 circumference and float, in order to further promote the effect of polishing of plectane 1, makes it all can realize the flexible function of polishing in circumference and axial.
It is understood that the rotating device includes, but is not limited to, a device that can perform multi-angle rotation and auxiliary supporting function in connection with an automated working mechanism with a manipulation capability, such as a grinding robot, a robot arm, etc.
The elastic axial connection between the transmission shaft 3 and the inner cavity of the mounting shaft 2 includes, but is not limited to, a cylindrical spring 6, the cylindrical spring 6 is fixed in the center of the inner end surface of the mounting shaft 2, and the cylindrical spring 6 is in a compressed state after being installed, and the compression force is related to the rigidity of the selected spring and affects the resistance characteristic of circumferential expansion and contraction.
Therefore, the selected innersprings can select springs with different rigidity according to different construction process requirements, so that the telescopic flexible polishing function of the polishing circular plate 1 is improved.
In one embodiment, a mounting hole of the bayonet 7 is formed through the inner cavity of the transmission shaft 3 in the mounting shaft 2, and a slot 21 is formed through the surface of the mounting shaft 2 opposite to the mounting hole of the bayonet 7.
The transmission shaft 3 is radially fixed with the mounting shaft 2 through a bayonet 7 penetrating through the slotted hole 21 and the mounting hole of the bayonet 7; detailed description of the preferred embodimentreferring to fig. 2, fig. 2 is an enlarged partial view of one embodiment of the mounting shaft 2 and the drive shaft 3.
In fig. 2, the polishing circular plate 1 is installed on the end face of the installation shaft 2, the circular space of the inner cavity of the installation shaft 2 penetrates into the left end of the drawing of the transmission shaft 3, and when the transmission shaft 3 is in the inner cavity of the installation shaft 2, the transmission shaft 3 penetrates through the radial clamping pins 7, so that the installation shaft 2 can do telescopic motion relative to the transmission shaft 3, and the clamping pins 7 limit the limit stroke of the telescopic motion.
It should be noted that, here, the bayonet lock 7 is in clearance fit with the slot 21 and in interference fit with the mounting hole of the bayonet lock 7, so as to realize the telescopic adjustment and circumferential floating adjustment functions between the transmission shaft 3 and the mounting shaft 2, and at the same time, to increase the compactness between the bayonet lock 7 and the transmission shaft 3 and reduce the wear.
In the above embodiment, the circumferential floating design is an effective design mode for realizing flexible polishing and guaranteeing operation of the putty polishing disc at an angle of 360 degrees in the application, the application realizes circumferential polishing floating by introducing a clearance fit structure design of multiple position points, as shown in fig. 3a-3c, fig. 3a is a cross section clearance expression diagram in the shaft end circumferential floating mechanism of an embodiment; FIG. 3b is a representation of the clearance of the slot 21 in the shaft end circumferential floating mechanism according to one embodiment; fig. 3c is a diagram showing the gap between the groove hole 21 and the detent 7 in the shaft end peripheral floating mechanism according to the embodiment.
As shown in fig. 3a, the center line of the installation of the transmission shaft 3 and the installation shaft 2 is designed to be cylindrical through center fit, but the outer surface of the transmission shaft 3 and the inner surface of the installation shaft 2 are not designed to be tightly fitted, but have a circumferential clearance, and in the axial telescopic moving state, the circumferential direction can be offset at any angle, and the offset can be designed to be enlarged or reduced according to the floating operation requirement of polishing, and the position is not limited specifically.
As shown in fig. 3b, the slot 21 of the mounting shaft 2 is designed to limit the axial expansion displacement and also to ensure the circumferential floating function, the slot 21 and the detent 7 are designed to be in clearance fit, and the detent 7 is provided with a margin for axial deflection when limiting the axial movement.
As shown in fig. 3c, the locking pin 7 is designed to be one turn smaller than the slot 21, and this design is used to achieve axial floating without restricting the floating path in one direction due to the functional fit of the "pin-hole".
The matching design of the circumferential floating mechanism of the putty polishing disc is realized through the graphs 3a-3c, so that the telescopic flexibility and the circumferential floating performance of the polishing disc in the putty polishing process are improved, and the operation precision is improved.
In one embodiment, both ends of the bayonet 7 are provided with grooves; the mounting shaft 2 is clamped with the groove in a matched manner through a shaft retainer ring so as to realize movable connection between the transmission shaft 3 and the mounting shaft 2.
Referring to fig. 2 specifically, in fig. 2, the installation axle 2 inner chamber circle space penetrates the left end of the drawing of transmission shaft 3, when the transmission shaft 3 is in installation axle 2 inner chamber, penetrates transmission shaft 3 through radial bayonet lock 7, position symmetrical arrangement about the drawing, the both ends of bayonet lock 7 are equipped with the recess of installation axle 2 with outer retainer ring, the axle is blocked bayonet lock 7 tip of both sides about the axle respectively, and the overall arrangement is in the outside of installation axle 2, realizes installing the connection of the non-rigid nature of axle 2 with transmission shaft 3.
Further, as shown in fig. 4, fig. 4 is a functional design feature expression diagram of the mounting shaft 2 and the transmission shaft 3 according to an embodiment; the mounting shaft 2 is provided with two opposite slotted holes 21 penetrating through the cylindrical surface, the inner side surface of the gap is larger than the outer circular surface of the transmission shaft 3, the diameter difference is designed gap amount, and the gap amount is used for controlling the axial floating limit angle.
In addition, when the roughness design is carried out in the inner side surface of the gap, the roughness of the inner side surface of the gap is smaller than that of the outer wall and other parts, so that smooth friction existing in the matching of the transmission shaft 3 and the mounting shaft 2 is reduced, and abrasion is reduced.
Referring to fig. 4, the left end of the transmission shaft 3 is provided with a large fillet, and the design of the large fillet aims to facilitate the swing between the installation shaft 2 and the transmission shaft 3 and reduce the abrasion. So, can satisfy the demand of design of floating through the functional structure characteristic design of installation axle 2, transmission shaft 3.
In one embodiment, the transmission shaft 3 is provided with a bearing at the outer part of the mounting shaft 2, an impeller 5 is fixed at the outer side of the bearing in the circumferential direction, and the impeller 5 and the transmission shaft 3 rotate relatively.
Referring to fig. 2 in particular, the support of the positions of the drive shaft 3 and the impeller 5 is supported by bearings, that is, the impeller 5 and the drive shaft 3 can rotate relatively.
In one embodiment, a spring pressing mechanism 4 is arranged between the grinding circular plate 1 and the impeller 5; the elastic pressing mechanisms 4 are at least provided with three groups, and the elastic pressing mechanisms 4 are uniformly distributed between the polishing circular plate 1 and the impeller 5.
In the embodiment, because the spatial axial force and the circumferential force need to be comprehensively considered during polishing, the single-group biasing mechanism 4 cannot meet the operation requirement of actually polishing the circular plate 1, and therefore the three-point floating force-applying spatial structure design is adopted in the application to solve the problem.
As shown in fig. 5a-5b, fig. 5a is a representation of a floating space implementation of the three-point biasing mechanism 4 according to one embodiment; fig. 5b is a schematic cross-sectional projection view of the biasing mechanism 4 according to an embodiment.
In fig. 5a, the three-point floating acting point includes three groups of the biasing mechanism 4a, the biasing mechanism 4b and the biasing mechanism 4c, and the large end faces of the three groups of the biasing mechanisms 4 are consistent in direction and staggered in space between the impeller 5 and the polishing circular plate 1, but the axes are all parallel.
In this embodiment, the use of the three-point floating layout design has the following effects: when the grinding circular plate 1 is subjected to an offset load acting force, a certain elastic pressing mechanism 4 is pressed to be compressed, in order to ensure that the construction surface of the grinding circular plate 1 is a local plane, and the grinding circular plate has follow-up property, a plane formed by three points is designed to be a preferably floating flexible plane.
For example, when the pressing mechanism 4a is compressed, the other two pressing mechanisms 4b and 4c can be inclined towards the pressing mechanism 4a to form an inclined plane, and there is no interference of redundant force acting points; in the same way, when two groups of the elastic pressing mechanisms 4 are compressed, the rest group of the elastic pressing mechanisms 4 can incline in the super-compression direction, and the requirement of real-time floating change polishing operation is met.
And when the spatial layout of more than three points, such as four points, five points or more, certain state single group stress uncertain or suspension state necessarily exists, and there exists redundancy design, and the redundancy is unfavorable for the copying floating of the polishing disc.
Further, as shown in fig. 5b, the key point involved in the implementation of the spatial floating of the three-point floating force application point is that the three groups of biasing mechanisms 4 are uniformly distributed, and the axial projections of the biasing mechanisms 4a, 4b, and 4c are uniformly distributed by taking the transmission shaft 3 as the center.
For example, the included angle between each pressing mechanism 4 and the transmission shaft 3 is 120 ° with the transmission shaft 3 as the center, and the axial projection is a single dot, and the two parts are dislocated, so as to realize the layout of the three-point buoyancy acting points.
In one embodiment, as shown in fig. 6, fig. 6 is an implementation representation of the biasing mechanism 4 of one embodiment; in fig. 6, the biasing mechanism 4 may include a guide post 42, a tower spring 41, and an adjustment nut 43.
The tower spring 41 is disposed between the grinding circular plate 1 and the impeller 5, one end of the guide post 42 penetrates the surface of the impeller 5 and extends into the tower spring 41, and the other end is screwed with the adjusting nut 43.
According to the putty sanding disc, the guide post 42, the tower spring 41 and the adjusting nut 43 form the group of the elastic pressing mechanism 4, the elastic pressing mechanism 4 can achieve axial extension and retraction of the putty sanding disc, as shown in fig. 6, the elastic pressing part of the elastic pressing mechanism 4 is clamped between the sanding disc 1 and the impeller 5 auxiliary support, namely, the tower spring 41 can be compressed in two structural members.
When the external stress is relieved, the tower spring 41 rebounds the two structures to the initial position until reaching the limiting position, the guide post 42 in the middle is used for penetrating the tower spring 41, and the nut is pre-pressed and installed at the limiting adjustable position point of the guide post 42, so that pre-pressure is provided for the tower spring 41, and the pre-pressure can influence the floating flexibility of the polishing circular plate 1.
In the embodiment, the single group of the elastic pressing mechanisms 4 are arranged to be adjustable structures, so that floating rigidity control is convenient to realize, and a single rigidity unchangeable device is not used, so that the multiple usability of grinding operation is facilitated; and, this axial equipartition guarantee is realized through guide post 42, and that is each group suppress mechanism 4 independently floating state, and accessible guide post 42 realizes position restriction, guarantees that three group suppress mechanism 4 float separately, realizes the control of space impetus.
In one embodiment, as shown in fig. 7, fig. 7 is a partially enlarged view of the biasing mechanism 4 of one embodiment; in fig. 7, one end of the guide post 42 is locked to the grinding circular plate 1 by a screw 44, and the other end is fixed to the impeller 5 by being limited by the adjusting nut 43.
In one embodiment, as shown in fig. 8, fig. 8 is a structural schematic view of an impeller 5 of one embodiment; in fig. 8, the impeller 5 comprises a hub 52, an outer edge of the impeller 5, small blades 54 and large blades 53; the hub 52 is located at the center of the outer edge of the impeller 5, and the large blades 53 and the small blades 54 are evenly distributed between the hub 52 and the outer edge of the impeller 5 at intervals.
The impeller 5 is designed in a form of an internal blade external fixing ring, and specifically comprises internal large blades 53, small blades 54, a hub 52, an impeller 5 outer edge and other functional parts, wherein the large blades 53 are arranged in a central symmetry manner and are main stress parts for pushing air, and the small blades 54 are auxiliary stress parts for pushing air.
In one embodiment, as shown in fig. 8, the impeller outer rim 51 is circular and has a rim on its inner side; the small blades 54 are fixed at one end to the hub 52 and at the other end to the rim by spokes 55 which are co-linear therewith.
One end of the large blade 53 is fixed to the hub 52, and the other end is fixed to the rim; the hub 52 is fixed to the outer ring of the bearing through a bearing mounting hole 57, and the transmission shaft 3 is fixed to the inner ring of the bearing.
Structural design of impeller 5 referring to fig. 8, a bearing mounting hole 57 is formed in the middle of hub 52, the mounting hole is a stepped hole, impeller 5 can be mounted on transmission shaft 3 through a bearing, and is pressed and fixed axially through a bearing pressing plate, and impeller 5 can rotate around transmission shaft 3.
Preferably, the bearings herein use rolling bearings, with which the drive shaft 3 and the hub 52 are connected to achieve relative movement between the drive shaft 3 and the impeller 5.
The blades in the impeller 5 are designed radially and uniformly and include, but are not limited to, three large blades 53 and three small blades 54, the small blades 54 are connected with spokes 55, the spokes 55 are stress points of the biasing mechanism 4 on the impeller 5, wherein the large blades 53 and the small blades 54 are arranged in a staggered manner, and two connected included angles of the whole blades are 60 degrees; the blades in the impeller 5 extrude air in the rotating process, so that the air is forced to flow along the inner side surfaces of the blades, the air moves from outside to inside passively, a suction effect is generated, and the rotating dust collection function design is realized.
In the above embodiment, the impeller 5 has six blades arranged symmetrically with respect to the center, so as to ensure the overall dynamic balance, and the outer edge 51 of the impeller is in the shape of an overall ring and is provided with a rim, and the outer edges of the large blades 53 and the spokes 55 are overlapped to realize six-point uniform distribution; the impeller 5 is provided with a hub 52 at the center for mounting the transmission shaft 3, wherein a bearing mounting hole 57 is formed at one side end for mounting an outer ring of the rolling bearing, and the end face of the bearing mounting hole is matched with the bearing pressing plate to axially fix the rolling bearing.
In the present application, the impeller 5 is designed to have a certain use direction, and is rotated in the dust cover inner cavity space in the counterclockwise direction shown in fig. 8 as a set working direction.
In one embodiment, the spokes 55 are at least three groups, and the surface of the spokes 55 has guide post mounting holes 56 formed therethrough.
The guide post 42 is inserted into the guide post mounting hole 56 and extends into the tower spring 41, and the adjusting nut 43 is disposed above the spoke 55; the guide post mounting holes 56 are a clearance fit with the guide posts 42.
In the present application, the supporting points provided in the impeller 5 are the spokes 55, and the spokes 55 and the small blades 54 are arranged in the impeller 5 in a collinear manner, preferably three groups, corresponding to the three groups of biasing mechanisms 4; the spokes 55 are designed to be flat and flush with the outer edge 51 of the impeller, and overlap the small blades 54 at the inner part, and are merged with the outermost sides of the small blades 54 at the round points.
The round hole in the middle of spoke 55 position is used as guide post mounting hole 56 for penetrating of guide post 42, belongs to clearance fit in suppressing mechanism 4, and guide post mounting hole 56 realizes the cylinder direction of guide post 42, and the terminal surface is used for bearing limiting thread.
In the above embodiment, the overall structure of the impeller 5 is designed into the form of the internal blade external fixing ring, the specific structure includes the internal large blades 53, the small blades 54, the spokes 55, the hub 52, the impeller outer edge 51 and other functional parts, the large blades 53 adopt the central symmetrical layout and are the main stress parts for pushing air, the small blades 54 are the auxiliary parts for pushing air to be stressed, the small blades 54 simultaneously take into account the structural design of the spokes 55 and the guide post mounting holes 56, and the beneficial effects that the dynamic load balance of the impeller 5 and the whole air flow are pushed are also matched.
The application also provides a polishing robot, which comprises a mechanical arm and the putty polishing disc in any one of the embodiments; the transmission shaft 3 is connected to a rotating device on the mechanical arm, so that a grinding function is realized through the rotating device.
Specifically, installation axle 2 in this application and 7 clearance mounting structure designs of bayonet lock reach 3 terminal surfaces of transmission shaft and polish plectane 1 flexible and 360 can the unsteady functional effect of circumference of axial, and the adjustable reset formula mechanism of three point spring that impeller 5 was equipped with simultaneously makes polishing plectane 1 realize that spatial force supports and flexible adjustable effect, has flexible function maximization and has the adjustability, and the polishing dish simple structure, convenient assembling, the construction advantage that the effect is good of polishing.
In addition, the grinding disc with the impeller floating balance structure has wide applicability, can be applied to occasions such as polishing, grinding, deburring and edge removing only by adjusting the type of grinding abrasive paper, can be used in building decoration, furniture decoration and industrial product surface treatment, and is particularly suitable for occasions easily producing dust powder, such as grinding of the outer surface of a blank workpiece, surface treatment before painting of furniture equipment doors and chairs and the like.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (11)
1. A putty polishing disc is characterized in that: the method comprises the following steps:
polishing the circular plate, the mounting shaft and the transmission shaft;
one end of the mounting shaft is fixedly connected with the polishing circular plate, one end of the transmission shaft penetrates through the end face of the other side of the mounting shaft and extends to the inner cavity of the mounting shaft, and the other end of the transmission shaft is fixed with the rotating device;
the transmission shaft is in circumferential clearance fit with the inner cavity of the installation shaft and is in elastic connection with the inner cavity of the installation shaft in the axial direction, so that the rotating device can achieve the functions of flexible expansion in the axial direction and floating adjustment in the circumferential direction of the polishing circular plate during polishing operation.
2. The putty sanding disc of claim 1, wherein a bayonet mounting hole is formed through an inner cavity portion of the transmission shaft, which is located on the mounting shaft, and a slotted hole is formed through opposite surfaces of the mounting shaft and the bayonet mounting hole;
the transmission shaft is radially fixed with the mounting shaft through a clamping pin penetrating through the slotted hole and the clamping pin mounting hole; the bayonet lock is in clearance fit with the slotted hole and in interference fit with the bayonet lock mounting hole.
3. The putty sanding disc of claim 2, wherein grooves are provided at both ends of the bayonet;
the mounting shaft is clamped with the groove in a matched manner through a shaft retainer ring so as to realize movable connection between the transmission shaft and the mounting shaft.
4. The putty sanding disc of claim 1, wherein a bearing is installed on the outer side portion of the transmission shaft, which is located on the mounting shaft, an impeller is circumferentially fixed on the outer side of the bearing, and the impeller and the transmission shaft rotate relatively.
5. The putty sanding disc of claim 4, wherein a biasing mechanism is disposed between the sanding circular plate and the impeller;
the elastic pressing mechanisms are at least provided with three groups, and the three groups of elastic pressing mechanisms are uniformly distributed between the polishing circular plate and the impeller.
6. The putty sanding disc of claim 5, wherein the biasing mechanism includes a guide post, a tower spring, and an adjustment nut;
the tower spring is arranged between the polishing circular plate and the impeller, one end of the guide column penetrates through the surface of the impeller and extends into the tower spring, and the other end of the guide column is in threaded connection with the adjusting nut.
7. The putty sanding disc of claim 6, wherein one end of the guide post is locked with the sanding circular plate through a screw, and the other end of the guide post is fixed with the impeller in a limiting manner through the adjusting nut.
8. The putty sanding disc of claim 4, wherein the impeller includes a hub, an impeller outer edge, small blades, large blades;
the hub is positioned in the center of the outer edge of the impeller, and the large blades and the small blades are uniformly distributed between the hub and the outer edge of the impeller at intervals.
9. The putty sanding disc of claim 8, wherein the outer edge of the impeller is circular and a rim is arranged on the inner side of the impeller;
one end of each small blade is fixed with the hub, and the other end of each small blade is fixed with the rim through a spoke collinear with the small blade;
one end of the large blade is fixed with the hub, and the other end of the large blade is fixed with the rim;
the hub is fixed with the outer ring of the bearing through the bearing mounting hole, and the transmission shaft is fixed with the inner ring of the bearing.
10. The putty sanding disc of any one of claims 4-9, wherein the spokes are at least three groups, and guide post mounting holes are formed through the surfaces of the three groups of spokes;
the guide post is inserted into the guide post mounting hole and extends into the tower spring, and the adjusting nut is arranged above the spoke; and the guide post mounting holes are in clearance fit with the guide posts.
11. A sanding robot comprising a robotic arm and the putty sanding disc of any of claims 1-10 above; the transmission shaft is connected to a rotating device on the mechanical arm, so that a polishing function is achieved through the rotating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911273908.9A CN110878627A (en) | 2019-12-12 | 2019-12-12 | Putty sanding disc and polishing robot |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911273908.9A CN110878627A (en) | 2019-12-12 | 2019-12-12 | Putty sanding disc and polishing robot |
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| CN110878627A true CN110878627A (en) | 2020-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911273908.9A Pending CN110878627A (en) | 2019-12-12 | 2019-12-12 | Putty sanding disc and polishing robot |
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| CN112388417A (en) * | 2020-10-27 | 2021-02-23 | 广东博智林机器人有限公司 | Polishing module and polishing robot comprising same |
| CN114370145A (en) * | 2020-10-15 | 2022-04-19 | 广东博鼎建筑科技有限公司 | Floating compensation mechanism, coating device and coating equipment |
| CN114370143A (en) * | 2020-10-15 | 2022-04-19 | 广东博鼎建筑科技有限公司 | Rotary transmission mechanism, coating device and putty coating robot |
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Application publication date: 20200313 |