CN112757059B - Handheld full-automatic grinding wheel machine for fine grinding - Google Patents

Handheld full-automatic grinding wheel machine for fine grinding Download PDF

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Publication number
CN112757059B
CN112757059B CN202011613463.7A CN202011613463A CN112757059B CN 112757059 B CN112757059 B CN 112757059B CN 202011613463 A CN202011613463 A CN 202011613463A CN 112757059 B CN112757059 B CN 112757059B
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Prior art keywords
polishing
rod
brake wheel
cutter
outer cover
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CN202011613463.7A
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CN112757059A (en
Inventor
陈文涛
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Gannan Power Supply Co Of State Grid Gansu Electric Power Co
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Gannan Power Supply Co Of State Grid Gansu Electric Power Co
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Priority to CN202011613463.7A priority Critical patent/CN112757059B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The invention belongs to the technical field of machining equipment, and particularly relates to a handheld full-automatic fine grinding wheel machine which comprises a handheld handle, an outer cover, a motor and a wheel mechanism, wherein the outer cover is arranged on the handheld handle; the hand-held handle is fixedly arranged on the outer surface of the rear end and the outer surface of the front end of the outer cover, and a motor is arranged on the lower side of the hand-held handle at the rear end; the motor is fixedly arranged in the rear end of the outer cover, and a grinding wheel mechanism is arranged on the right side of the motor; the grinding wheel mechanism is arranged inside the front end of the outer cover and comprises a brake wheel, a grinding piece, a connecting shaft and a compression rod; the brake wheel is rotationally connected in the inner wall of the front end of the outer cover; the invention is mainly used for designing a novel handheld grinder, and the contact pressure between a grinding wheel and a cutter surface can be automatically adjusted when the cutter is ground through a unique working mode, so that the cutter can be effectively protected while a grinding effect with higher quality is obtained, and the cutter is prevented from being broken.

Description

Handheld full-automatic fine grinding grinder
Technical Field
The invention belongs to the technical field of machining equipment, and particularly relates to a handheld full-automatic fine grinding wheel machine.
Background
The grinder is a machining grinding tool and is applied to various industries. For example, in the machining process, the cutter is worn and becomes dull or the cutter is damaged and loses the cutting capability, and the cutter needs to be sharpened on a grinding wheel to recover the cutting capability.
With the rapid development of science and technology, grinding machines have various types and functions, the most common of which belongs to a vertical grinding machine and a handheld grinding machine, the vertical grinding machine can grind large objects and has the highest grinding precision and safety, the handheld grinding machine has the outstanding convenience and can be manually and randomly moved and is usually used for grinding a plurality of cutters and small parts, but the supporting point of the handheld grinding machine is the arm of people and is not fixed like the vertical grinding machine, and the cutters are usually thin, so that when the handheld grinding machine is used for grinding the cutters, the pressure between the grinding wheel and the cutter surface needs to be controlled by concentrating the mental force, the grinding effect cannot be better when the force is small, and the cutters are broken easily when the force is too large.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a handheld full-automatic fine grinding wheel machine. The invention is mainly used for designing a novel handheld grinder, and the contact pressure between a grinding wheel and a cutter surface can be automatically adjusted when the cutter is ground through a unique working mode, so that the cutter can be effectively protected while a grinding effect with higher quality is obtained, and the cutter is prevented from being broken.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a handheld full-automatic fine grinding wheel machine, which comprises a handheld grip, an outer cover, a motor and a wheel mechanism, wherein the outer cover is arranged on the handheld grip; the handheld handle is fixedly arranged on the outer surface of the rear end and the outer surface of the front end of the outer cover, and a motor is arranged on the lower side of the handheld handle of the rear end; the motor is fixedly arranged in the rear end of the outer cover, and a grinding wheel mechanism is arranged on the right side of the motor; the grinding wheel mechanism is arranged inside the front end of the outer cover and comprises a brake wheel, a grinding piece, a connecting shaft and a compression rod; the brake wheel is rotationally connected in the inner wall of the front end of the outer cover, two ends of the brake wheel are connected with a rotating shaft of the motor through a transmission belt, and the outer side of the brake wheel is provided with a polishing sheet; the grinding sheets are arranged in an arc shape, are uniformly arranged on the outer side of the brake wheel around the circumference, and are rotationally connected through a connecting shaft; the inner surface of the connecting shaft is fixedly connected with a compression rod; the inner end of the compression rod is fixedly connected to the outer surface of the brake wheel.
A sand plate is fixedly embedded in the outer wall of the polishing disc; the sand plates are arranged in a plurality of blocks, the sand plates are arranged in close proximity, and the friction resistance of the sand plates from left to right is gradually increased; during the use, can take handheld handle and starter motor, make the braked wheel begin to rotate and polish to the cutter surface, when meetting burr and the unevenness position on cutter surface, can make the contact of polishing piece and cutter surface become the point contact from the face contact, can produce an extrusion force to the polishing piece, make the polishing piece move toward braked wheel one side, the both ends connecting axle of polishing piece begins to be discontinuous reciprocating motion promptly, give the slight vibrational force of polishing piece one strand, can realize that the emery wheel all can operate when the cutter in the face of different precisions, and can be according to the precision automatically regulated dynamics of polishing of cutter, ensure to keep good polishing effect still when the cutter in the face of different precisions, when polishing piece and cutter surface contact simultaneously, because of the polishing piece sets up to the arc, so the right side of polishing piece is first with cutter face contact, thereby make the sand board of roughest face earlier with cutter face contact, and the friction dynamics reduces along with the rotation of braked wheel gradually, realize gradual fine grinding effect, thereby make the cutter face of accomplishing more smooth, make the friction effect better.
The inner surface of the middle part of the polishing piece is fixedly connected with a mounting rod; the lower end of the mounting rod is fixedly connected with a mounting pipe; the two sides of the mounting pipe are symmetrically and rotatably connected with arc plates, and the lower end of the mounting pipe is fixedly connected with an extrusion rod; the lower end of the extrusion rod is fixedly connected to the outer surface of the brake wheel; the outer surface of the arc-shaped plate is symmetrically and rotatably connected with a first telescopic rod; the first telescopic rod is rotatably arranged on the outer side of the brake wheel, rotating plates are arranged in the symmetrical direction of the first telescopic rod, and an internal cavity of the first telescopic rod is communicated with an internal cavity of the extrusion rod; the inner surface of the lower end of the rotating plate is hinged with a second telescopic rod; the other end of the second telescopic rod is symmetrically hinged to the lower end of the mounting pipe; the arc-shaped plates in the same polishing sheet can be combined into a circular ring in the through hole of the mounting rod.
The outer surface of the rotating plate is fixedly provided with a magnet plate; a metal inclined plate is obliquely arranged on the outer side of the magnet plate; the metal inclined plates are uniformly and symmetrically arranged on the outer surface of the brake wheel.
A water delivery pipe is fixedly arranged inside the metal inclined plate; the outer end of the water conveying pipe is fixedly connected into the left side wall of the polishing plate in a penetrating mode, and the outer end of the water conveying pipe penetrates through the polishing plate to be arranged at an angle which is inclined to the left side.
The end part of the arc-shaped plate is elastically connected with a contact through an elastic bag; the contact can enter and exit the through hole through the movement of the arc-shaped plate; the inner cavity of the elastic bag is communicated with the inner cavity of the compression rod; contact the in-process that leaves the contact when polishing piece and cutter face begin to extrude it, thereby make the piece of polishing can be towards braked wheel one side bending, can extrude the installation pole promptly, finally make the extrusion stem shrink, thereby make the extrusion stem carry its inside atmospheric pressure to a telescopic link in, and then promote the arc and contract to the inboard, and peg graft gradually in the through-hole of installation pole, make the contact of its tip contact each other, energize the raceway, make the raceway begin to be interrupted spray the water column toward emery wheel the place ahead, can realize the part that the cutter face is not polished and cool down in advance and handle, also can realize moist effect in advance, and then ensure that the effect when polishing piece rubs with the cutter face is better, and set up to the connected state because of elasticity bag inside cavity and the inside cavity of compression pole, so when the piece is extruded to the biggest radian, the inside atmospheric pressure of elasticity bag keeps balanced with the inside atmospheric pressure of pole, even if get polishing piece and cutter face's pressure keep invariable, not only can provide fine protection to polishing, guarantee simultaneously that the cutter face can not receive huge pressure in the twinkling of an eye and take place the fracture.
The invention has the following beneficial effects:
1. when meetting cutter surface's burr and unevenness position, can make the contact of polishing piece and cutter surface become the point contact from the face contact, can produce one extrusion force to the polishing piece, make the polishing piece move toward braked wheel one side, the both ends connecting axle of polishing piece begins to be discontinuous reciprocating motion promptly, give the slight vibrational force of polishing piece, can realize that the emery wheel all can operate when the cutter in the face of different precision, and can be according to the precision automatic adjustment dynamics of polishing of cutter, guarantee to keep good polishing effect still when the cutter in the face of different precision, when polishing piece and cutter surface contact simultaneously, because of the polishing piece sets up to the arc, so the right side of polishing piece earlier with cutter face contact, thereby make the sand plate of the roughest face earlier with cutter face contact, and the friction dynamics reduces along with the rotation of braked wheel gradually, realize the effect of finish grinding gradually, thereby make the cutter face of accomplishing of polishing more smooth, make the friction effect better.
2. Contact the in-process that leaves the contact when polishing piece and cutter face begin to extrude it, thereby make the piece of polishing can be towards braked wheel one side bending, can extrude the installation pole promptly, finally make the extrusion stem shrink, thereby make the extrusion stem carry its inside atmospheric pressure to a telescopic link in, and then promote the arc and contract to the inboard, and peg graft gradually in the through-hole of installation pole, make the contact of its tip contact each other, energize the raceway, make the raceway begin to be interrupted spray the water column toward emery wheel the place ahead, can realize the part that the cutter face is not polished and cool down in advance and handle, also can realize moist effect in advance, and then ensure that the effect when polishing piece rubs with the cutter face is better, and set up to the connected state because of elasticity bag inside cavity and the inside cavity of compression pole, so when the piece is extruded to the biggest radian, the inside atmospheric pressure of elasticity bag keeps balanced with the inside atmospheric pressure of pole, even if get polishing piece and cutter face's pressure keep invariable, not only can provide fine protection to polishing, guarantee simultaneously that the cutter face can not receive huge pressure in the twinkling of an eye and take place the fracture.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the grinder mechanism of the present invention;
FIG. 4 is an enlarged view of a portion of the invention at A in FIG. 3;
in the figure: the hand-held handle 1, the outer cover 2, the motor 3, the grinding wheel mechanism 4, the brake wheel 41, the grinding disc 42, the sand plate 421, the connecting shaft 43, the compression rod 44, the installation rod 45, the through hole 451, the installation pipe 46, the arc-shaped plate 47, the extrusion rod 48, the first expansion link 49, the rotating plate 5, the second expansion link 51, the magnet plate 52, the metal inclined plate 53, the water pipe 54, the elastic bag 55 and the contact 56.
Detailed Description
A hand-held full-automatic fine grinding machine according to an embodiment of the present invention will be described below with reference to fig. 1 to 4.
As shown in fig. 1-4, the invention relates to a hand-held full-automatic fine grinding wheel machine, which comprises a hand-held handle 1, an outer cover 2, a motor 3 and a grinding wheel mechanism 4; the hand-held handle 1 is fixedly arranged on the outer surface of the rear end and the outer surface of the front end of the outer cover 2, and a motor 3 is arranged on the lower side of the rear-end hand-held handle 1; the motor 3 is fixedly arranged inside the rear end of the outer cover 2, and a grinding wheel mechanism 4 is arranged on the right side of the motor 3; the grinding wheel mechanism 4 is arranged inside the front end of the outer cover 2, and the grinding wheel mechanism 4 comprises a brake wheel 41, a grinding sheet 42, a connecting shaft 43 and a compression rod 44; the brake wheel 41 is rotatably connected in the inner wall of the front end of the outer cover 2, two ends of the brake wheel 41 are connected with a rotating shaft of the motor 3 through a transmission belt, and the outer side of the brake wheel 41 is provided with a polishing sheet 42; the polishing sheets 42 are arranged in an arc shape, the polishing sheets 42 are uniformly arranged on the outer side of the brake wheel 41 around the circumference, and the polishing sheets 42 are rotationally connected through a connecting shaft 43; a compression bar 44 is fixedly connected to the inner surface of the connecting shaft 43; the inner end of the compression rod 44 is fixedly attached to the outer surface of the headblock 41.
A sand plate 421 is fixedly embedded in the outer wall of the polishing sheet 42; the sand plates 421 are arranged in a plurality of blocks, the sand plates 421 are arranged closely adjacent to each other, and the friction resistance of the sand plates 421 from left to right is gradually increased; during the use, can take handheld handle 1 and start motor 3, make brake wheel 41 begin to rotate and polish the cutter surface, when meetting burr and the unevenness position on cutter surface, can make the contact of polishing piece 42 and cutter surface become the point contact from the face contact, can produce an extrusion force to polishing piece 42, make polishing piece 42 move toward brake wheel 41 one side, the both ends connecting axle 43 of polishing piece 42 begins to do discontinuous reciprocating motion promptly, give polishing piece 42 a slight vibration force, can realize that the emery wheel all can operate when facing the cutter of different precisions, and can be according to the precision automatic adjustment dynamics of polishing of cutter, ensure to keep good polishing effect when facing the cutter of different precisions still, when polishing piece 42 and cutter surface contact simultaneously, because of polishing piece 42 sets up to the arc, so the right side of polishing piece 42 contacts with the cutter face earlier, thereby make the emery board 421 of the roughest face contact with the cutter face earlier, and the friction dynamics reduces along with brake wheel 41's rotation gradually, realize the effect of gradually, thereby make the cutter that polishes accomplish smooth, make the friction effect better.
The inner surface of the middle part of the polishing sheet 42 is fixedly connected with a mounting rod 45; the lower end of the mounting rod 45 is fixedly connected with a mounting pipe 46; arc-shaped plates 47 are symmetrically and rotatably connected to two sides of the mounting pipe 46, and an extrusion rod 48 is fixedly connected to the lower end of the mounting pipe 46; the lower end of the extrusion rod 48 is fixedly connected with the outer surface of the brake wheel 41; the outer surface of the arc-shaped plate 47 is symmetrically and rotatably connected with a first telescopic rod 49; the first telescopic rod 49 is rotatably arranged on the outer side of the brake wheel 41, the rotating plate 5 is arranged in the symmetrical direction of the first telescopic rod 49, and the inner cavity of the first telescopic rod 49 is communicated with the inner cavity of the extrusion rod 48; the inner surface of the lower end of the rotating plate 5 is hinged with a second telescopic rod 51; the other ends of the second telescopic rods 51 are symmetrically hinged to the lower end of the mounting pipe 46; the arcuate plates 47 in the same piece of the polishing sheet 42 may merge into a circular ring in the through hole 451 of the mounting bar 45.
A magnet plate 52 is fixedly arranged on the outer surface of the rotating plate 5; a metal inclined plate 53 is obliquely arranged on the outer side of the magnet plate 52; the metal inclined plates 53 are uniformly and symmetrically arranged on the outer surface of the brake wheel 41.
A water delivery pipe 54 is fixedly arranged inside the metal inclined plate 53; the outer end of the water pipe 54 is fixedly connected in the left side wall of the polishing sheet 42 in a penetrating manner, and the outer end of the water pipe 54 is arranged in the polishing sheet 42 in a penetrating manner at an oblique left side.
The end part of the arc-shaped plate 47 is elastically connected with a contact 56 through an elastic bag 55; the contact 56 can enter and exit the through hole 451 through the movement of the arc-shaped plate 47; the inner cavity of the elastic bag 55 is communicated with the inner cavity of the compression rod 44; when the polishing sheet 42 and the cutter surface are in contact with each other and leave the contact, the polishing sheet 42 can be extruded, so that the polishing sheet 42 can be bent towards one side of the brake wheel 41, namely the installation rod 45 can be extruded, and finally the extrusion rod 48 is made to shrink, so that the extrusion rod 48 conveys the air pressure in the polishing sheet 48 to the first telescopic rod 49, further the arc-shaped plate 47 is pushed to shrink inwards and is gradually inserted into the through hole 451 of the installation rod 45, the contact 56 at the end part of the arc-shaped plate is made to be in contact with each other, the water conveying pipe 54 is electrified, the water conveying pipe 54 is made to intermittently spray water columns towards the front of the grinding wheel, the part of the cutter surface which is not polished can be cooled in advance, the effect of wetting in advance can be realized, the effect when the polishing sheet 42 and the cutter surface are rubbed is better, the inner cavity of the elastic bag 55 and the inner cavity of the compression rod 44 are set to be in a communicated state, so that the air pressure in the elastic bag 55 and the inner part of the compression rod 44 can be kept balanced when the polishing sheet 42 is extruded to the maximum, even if the pressure of the polishing sheet 42 and the cutter surface is kept constant, the huge fracture can be well, and the protection of the cutter surface can be protected, and the instant fracture can not occur.
The specific working process is as follows:
when the tool is used, the hand-held grip 1 can be taken, the motor 3 is started, the brake wheel 41 starts to rotate to polish the surface of the tool, when burrs and uneven parts on the surface of the tool are met, the contact between the polishing sheet 42 and the surface of the tool is changed from surface contact into point contact, a squeezing force is generated on the polishing sheet 42, the polishing sheet 42 is driven to move towards one side of the brake wheel 41, namely, the connecting shafts 43 at the two ends of the polishing sheet 42 start to do discontinuous reciprocating motion, a slight vibration force is given to the polishing sheet 42, the grinding wheel can work when facing tools with different precisions, the polishing force can be automatically adjusted according to the precision of the tool, the good polishing effect can be kept when facing the tools with different precisions, meanwhile, when the polishing sheet 42 is in contact with the surface of the tool, the right side of the polishing sheet 42 is firstly in contact with the surface of the tool because the polishing sheet 42 is set to be arc-shaped, the sand plate 421 with the surface of the roughest surface of the tool is firstly in contact with the surface of the tool, and the friction force is gradually reduced along with the rotation of the brake wheel 41, the effect of the finish grinding is achieved, and the tool is smoother, and the friction effect of the finish grinding is better; when the polishing sheet 42 and the cutter face are in contact with each other and leave the contact, the polishing sheet 42 can be extruded, so that the polishing sheet 42 can be bent towards one side of the brake wheel 41, namely the installation rod 45 can be extruded, the extrusion rod 48 is finally made to shrink, the extrusion rod 48 is made to convey the air pressure in the polishing sheet to the first telescopic rod 49, the arc-shaped plate 47 is further pushed to shrink towards the inner side and is gradually inserted into the through hole 451 of the installation rod 45, the contact 56 at the end part of the arc-shaped plate is made to be in contact with each other, the water pipe 54 is electrified, the water pipe 54 is made to intermittently spray water columns towards the front of the grinding wheel, the part of the cutter face which is not polished can be cooled in advance, the effect of wetting in advance can be achieved, the effect of friction between the polishing sheet 42 and the cutter face is better ensured, and the inner cavity of the elastic bag 55 and the inner cavity of the compression rod 44 are set to be in a communicated state, so that the air pressure in the elastic bag 55 and the inner pressure of the compression rod 44 are kept balanced when the polishing sheet 42 is extruded to the maximum, even if the pressure of the polishing sheet 42 and the cutter face is kept constant, the protection can be well provided, and the giant cutter 42 can be protected, and the giant fracture of the giant cutter face can be avoided.
While the present invention has been described with reference to the particular illustrative embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and equivalents thereof, which may be made by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (3)

1. A hand-held full-automatic fine grinding wheel machine comprises a hand-held grip (1), an outer cover (2), a motor (3) and a wheel mechanism (4); the method is characterized in that: the handheld grip (1) is fixedly arranged on the outer surface of the rear end and the outer surface of the front end of the outer cover (2), and a motor (3) is arranged on the lower side of the handheld grip (1) of the rear end; the motor (3) is fixedly arranged inside the rear end of the outer cover (2), and a grinding wheel mechanism (4) is arranged on the right side of the motor (3); the grinding wheel mechanism (4) is arranged inside the front end of the outer cover (2), and the grinding wheel mechanism (4) comprises a brake wheel (41), a grinding sheet (42), a connecting shaft (43) and a compression rod (44); the brake wheel (41) is rotatably connected in the inner wall of the front end of the outer cover (2), two ends of the brake wheel (41) are connected with a rotating shaft of the motor (3) through a transmission belt, and the outer side of the brake wheel (41) is provided with a polishing sheet (42); the polishing sheets (42) are arranged in an arc shape, the polishing sheets (42) are uniformly arranged on the outer side of the brake wheel (41) around the circumference, and the polishing sheets (42) are rotationally connected through a connecting shaft (43); the inner surface of the connecting shaft (43) is fixedly connected with a compression rod (44); the inner end of the compression rod (44) is fixedly connected to the outer surface of the brake wheel (41);
a sand plate (421) is fixedly embedded in the outer wall of the polishing plate (42); the sand plates (421) are arranged in a plurality of blocks, the sand plates (421) are arranged closely and adjacently, and the friction resistance of the sand plates (421) from left to right is gradually increased;
the inner surface of the middle part of the polishing piece (42) is fixedly connected with a mounting rod (45); the lower end of the mounting rod (45) is fixedly connected with a mounting pipe (46); arc-shaped plates (47) are symmetrically and rotatably connected to two sides of the mounting pipe (46), and an extrusion rod (48) is fixedly connected to the lower end of the mounting pipe (46); the lower end of the extrusion rod (48) is fixedly connected to the outer surface of the brake wheel (41); the outer surface of the arc-shaped plate (47) is symmetrically and rotatably connected with a first telescopic rod (49); the first telescopic rod (49) is rotatably arranged on the outer side of the brake wheel (41), the rotating plates (5) are arranged in the symmetrical direction of the first telescopic rod (49), and the inner cavity of the first telescopic rod (49) is communicated with the inner cavity of the extrusion rod (48); the inner surface of the lower end of the rotating plate (5) is hinged with a second telescopic rod (51); the other ends of the second telescopic rods (51) are symmetrically hinged to the lower end of the mounting pipe (46); the arc-shaped plates (47) in the same polishing piece (42) can be combined into a circular ring in the through hole (451) of the mounting rod (45);
a magnet plate (52) is fixedly arranged on the outer surface of the rotating plate (5); a metal inclined plate (53) is obliquely arranged on the outer side of the magnet plate (52); the metal inclined plates (53) are uniformly and symmetrically arranged on the outer surface of the brake wheel (41).
2. A hand-held full automatic fine grinding wheel machine according to claim 1, characterized in that: a water delivery pipe (54) is fixedly arranged inside the metal inclined plate (53); the outer end of the water conveying pipe (54) is fixedly connected in the left side wall of the polishing sheet (42) in a penetrating mode, and the outer end of the water conveying pipe (54) penetrates through the polishing sheet (42) to be arranged at an oblique left side.
3. The hand-held full automatic fine grinding wheel machine according to claim 2, characterized in that: the end part of the arc-shaped plate (47) is elastically connected with a contact (56) through an elastic bag (55); the contact (56) can enter and exit the through hole (451) through the movement of the arc-shaped plate (47); the inner cavity of the elastic bag (55) is communicated with the inner cavity of the compression rod (44).
CN202011613463.7A 2020-12-30 2020-12-30 Handheld full-automatic grinding wheel machine for fine grinding Active CN112757059B (en)

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CN202011613463.7A CN112757059B (en) 2020-12-30 2020-12-30 Handheld full-automatic grinding wheel machine for fine grinding

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Application Number Priority Date Filing Date Title
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CN112757059B true CN112757059B (en) 2022-12-16

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CN114367916B (en) * 2022-03-22 2022-05-27 南通市万帝来机电有限公司 Fan panel polishing machine

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