CN112589621A - Handheld grinding device suitable for one-key cleaning of multi-size grinding wheel - Google Patents
Handheld grinding device suitable for one-key cleaning of multi-size grinding wheel Download PDFInfo
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- CN112589621A CN112589621A CN202110050244.0A CN202110050244A CN112589621A CN 112589621 A CN112589621 A CN 112589621A CN 202110050244 A CN202110050244 A CN 202110050244A CN 112589621 A CN112589621 A CN 112589621A
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- Prior art keywords
- cavity
- friction wheel
- fixedly connected
- shaft
- cleaning
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
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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
- 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
- B24B55/06—Dust extraction equipment on grinding or polishing machines
- B24B55/10—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
- B24B55/102—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided with rotating tools
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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 relates to the related field of grinding equipment, and discloses a handheld grinding device suitable for one-key cleaning of a multi-size grinding wheel, which comprises a main box, wherein a cleaning box cavity with a downward opening is arranged in the main box, the left end of the upper end wall of the cleaning box cavity is communicated with a cam cavity, and an auxiliary friction wheel cavity positioned on the right side of the cam cavity is arranged on the upper side of the cleaning box cavity, the device realizes integrated control of speed regulation and cleaning through a speed regulation button and a cleaning button in the speed regulation button, namely when the grinding wheel needs to be cleaned, the cleaning button and the speed regulation button can be pressed simultaneously, so that the rotating speed of the grinding wheel is automatically slowed down, a brush capable of reciprocating on the outer edge surface of the grinding wheel is matched, the cleaning of the grinding wheel is realized, the position of the brush can be adjusted randomly according to the diameter of the grinding wheel by rotating the size button, the universality is higher, and the, it is comparatively convenient, improved the work piece efficiency of polishing.
Description
Technical Field
The invention relates to the related field of grinding equipment, in particular to a handheld grinding device suitable for one-key cleaning of a multi-size grinding wheel.
Background
At present small-size handheld polisher is at the in-process of polishing, because its surface of emery wheel is rougher to tiny granule under polishing is attached to the emery wheel surface easily, will reduce the polishing performance on the one hand, secondly tiny granule leads to the fact the fish tail to the work piece easily, and general processing mode is after polishing a period, blows off through the manual work or brushes the surface with the help of the foreign object and polishes the granule, but such kind of processing mode is comparatively troublesome, thereby frequent operation will very influence the process of polishing, influence work piece efficiency of polishing.
Disclosure of Invention
The invention aims to provide a handheld grinding device suitable for one-key cleaning of a multi-size grinding wheel, which can overcome the defects in the prior art, so that the practicability of equipment is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a handheld grinding device suitable for one-key cleaning of a multi-size grinding wheel, which comprises a main body box, wherein a cleaning box cavity with a downward opening is arranged in the main body box, the left end of the upper end wall of the cleaning box cavity is communicated with a cam cavity, the upper side of the cleaning box cavity is provided with an auxiliary friction wheel cavity positioned at the right side of the cam cavity, the right end wall of the auxiliary friction wheel cavity is communicated with a speed regulating cavity, the lower end wall of the speed regulating cavity is connected with a spline shaft which extends downwards to the outside and upwards to the speed regulating cavity in a rotating and matching manner, the lower end surface of the spline shaft is fixedly connected with the grinding wheel positioned at the outside, a cleaning box is connected in the cleaning box cavity in a sliding and matching manner, a main spring is fixedly connected between the upper end surface of the cleaning box and the upper end wall of the cleaning box cavity, a cleaning slide block cavity with a downward opening is arranged in the cleaning box, clean slider intracavity sliding fit be connected with clean slider axle screw-thread fit connects and downwardly extending to external clean slider, clean slider right-hand member face fixedly connected with be located external and can with the brush of emery wheel outer fringe face butt, clean incasement be equipped with clean slider axle fixed connection's vice regulation friction pulley, clean incasement chamber left end wall internal rotation fit be connected with extend to external and extend to right left the clean incasement just is located the knob axle of vice regulation friction pulley upside, vice regulation friction pulley upside be equipped with can with vice regulation friction pulley butt and with knob axle fixed connection's main regulation friction pulley.
On the basis of the technical scheme, the left end face of the knob shaft is fixedly connected with a size knob located outside, the upper end wall of the speed regulation cavity is communicated with a speed regulation slider cavity, the left side of the speed regulation slider cavity is provided with a bevel gear cavity located on the upper side of the speed regulation cavity, the right end wall of the speed regulation cavity is communicated with a conical friction wheel cavity, the right end wall of the speed regulation cavity is communicated with a main friction wheel cavity communicated with the lower end wall of the conical friction wheel cavity, the right side of the main friction wheel cavity is provided with a transmission gear cavity located on the lower side of the conical friction wheel cavity, the lower side of the transmission gear cavity is provided with a belt wheel cavity located on the right side of the spline shaft, the lower side of the belt wheel cavity is provided with a motor fixedly connected with the main box, the upper side of the conical friction wheel cavity is provided with a control cavity with a right opening, the control cavity is connected with a speed regulation button extending to, be equipped with the clean button chamber of opening right in the speed governing button, clean button intracavity sliding fit is connected with the clean button that extends to the external world right, clean button left end face fixedly connected with triggers the magnetic path, trigger the magnetic path left end face with fixedly connected with trigger spring between the clean button chamber left end wall.
On the basis of the technical scheme, the left end of the upper end wall of the cleaning button cavity is communicated with a magnetic through cavity, the upper end wall of the magnetic through cavity is communicated with a limiting magnetic block cavity with an upward opening, a limiting magnetic block which can correspond to the trigger magnetic block is connected in a sliding fit manner in the limiting magnetic block cavity, a limiting magnetic block spring is fixedly connected between the lower end surface of the limiting magnetic block and the lower end wall of the limiting magnetic block cavity, the upper end wall of the control cavity is fixedly connected with a limiting block which is positioned on the left side of the limiting magnetic block and can be abutted against the limiting magnetic block, the left end wall of the bevel gear cavity is rotatably and fittingly connected with a cam shaft which extends leftwards into the cam cavity and rightwards into the bevel gear cavity, a cam which is fixedly connected with the cam shaft is arranged in the cam cavity, and the lower end, the lower end face of the push block and the upper end face of the cleaning box are fixedly connected with a push rod, the lower end wall of the bevel gear cavity is connected with an auxiliary friction wheel shaft which extends downwards into the auxiliary friction wheel cavity and extends upwards into the bevel gear cavity in a rotating fit mode, an auxiliary bevel gear fixedly connected with the cam shaft is arranged in the bevel gear cavity, and a main bevel gear fixedly connected with the auxiliary friction wheel shaft is meshed with the lower side of the auxiliary bevel gear.
On the basis of the technical scheme, a speed regulation slider is connected in a sliding fit manner in a speed regulation slider cavity, the upper end surface of the speed regulation slider is fixedly connected with a speed regulation spring between the upper end walls of the speed regulation slider cavity, the spline shaft is connected with a speed regulation main shaft which extends upwards and runs through the speed regulation cavity to the inside of the speed regulation slider cavity and is connected with the speed regulation slider in a rotating fit manner, the inside of the speed regulation cavity is provided with a speed regulation friction wheel which is fixedly connected with the speed regulation main shaft and can abut against the auxiliary friction wheel, the upper end surface of a motor is fixedly connected with a motor main shaft which extends upwards and runs through the belt wheel cavity to the inside of the main friction wheel cavity and is connected with the main body box in a rotating fit manner, the inside of the main friction wheel cavity is provided with a main friction wheel which is fixedly connected with the motor main shaft and can abut against the speed regulation friction wheel, the lower end The conical friction wheel shaft is arranged in the wheel cavity, and a conical friction wheel which is fixedly connected with the conical friction wheel shaft and is abutted to the speed regulation friction wheel is arranged in the conical friction wheel cavity.
On the basis of the technical scheme, a transmission bevel gear shaft which extends downwards into the belt wheel cavity and extends upwards into the transmission gear cavity and is positioned on the right side of the conical friction gear shaft is connected with the lower end wall of the transmission gear cavity in a rotating fit manner, a transmission straight gear fixedly connected with the conical friction wheel shaft is arranged in the transmission gear cavity, a transmission bevel gear fixedly connected with the transmission bevel gear shaft is meshed on the right side of the transmission straight gear, a transmission belt positioned in the belt wheel cavity is connected between the motor main shaft and the transmission bevel gear shaft in a power fit manner, a pull rope is fixedly connected between the upper end surface of the speed regulating slide block and the left end surface of the speed regulating button, the thrust of the control spring is greater than that of the speed regulating spring, and the attractive force between the trigger magnetic block and the limiting magnetic block is greater than the thrust of the limiting magnetic block spring.
The invention has the beneficial effects that: this device passes through speed governing button and its inside clean button, thereby speed governing and clear integrated control have been realized, when needs are cleaned the emery wheel promptly, can press clean button and speed governing button simultaneously, thereby make emery wheel rotational speed slow down automatically, the cooperation can be at emery wheel outer fringe face reciprocating motion's brush simultaneously, thereby the cleanness of emery wheel has been realized, and through rotating the size knob, can be according to the arbitrary position of adjusting the brush of emery wheel diameter, the universality is higher, and only need loosen speed governing button can switch back immediately and beat the mode of grinding, and is comparatively convenient, the efficiency of polishing of work piece has been improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic diagram of the overall structure of a handheld grinding device suitable for one-key cleaning of multi-size grinding wheels.
Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.
Fig. 3 is an enlarged schematic view of the structure at B in fig. 1.
Fig. 4 is an enlarged schematic view of the structure at C in fig. 1.
Fig. 5 is an enlarged schematic view of the structure at D in fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The handheld grinding device suitable for one-key cleaning of the multi-size grinding wheel comprises a main body box 10, a cleaning box cavity 38 with a downward opening is arranged in the main body box 10, the left end of the upper end wall of the cleaning box cavity 38 is communicated with a cam cavity 11, an auxiliary friction wheel cavity 35 positioned on the right side of the cam cavity 11 is arranged on the upper side of the cleaning box cavity 38, a speed regulation cavity 18 is communicated with the right end wall of the auxiliary friction wheel cavity 35, a spline shaft 19 which extends downwards to the outside and upwards to the inside of the speed regulation cavity 18 is connected to the lower end wall of the speed regulation cavity 18 in a rotating fit manner, the grinding wheel 20 positioned outside is fixedly connected to the lower end face of the spline shaft 19, a cleaning box 39 is connected to the cleaning box cavity 38 in a sliding fit manner, a main spring 34 is fixedly connected between the upper end face of the cleaning box 39 and the upper end wall of the cleaning box cavity 38, and a cleaning slider cavity 32 with a, a cleaning slide shaft 33 which extends leftwards and penetrates through the cleaning slide cavity 32 to the inside of the cleaning box cavity 38 is connected with the right end wall of the cleaning slide cavity 32 in a rotating fit mode, a cleaning slide block 16 which is connected with the cleaning slide block shaft 33 in a threaded fit manner and extends downwards to the outside is connected in the cleaning slide block cavity 32 in a sliding fit manner, the right end face of the cleaning slide block 16 is fixedly connected with a brush 17 which is positioned outside and can be abutted against the outer edge face of the grinding wheel 20, a secondary adjusting friction wheel 30 fixedly connected with the cleaning slide block shaft 33 is arranged in the cleaning box cavity 38, a knob shaft 15 which extends to the outside leftwards and extends to the inside of the cleaning box cavity 38 rightwards and is positioned at the upper side of the auxiliary adjusting friction wheel 30 is connected with the left end wall of the cleaning box cavity 38 in a rotating fit mode, the upper side of the auxiliary adjusting friction wheel 30 is provided with a main adjusting friction wheel 29 which can be abutted against the auxiliary adjusting friction wheel 30 and is fixedly connected with the knob shaft 15.
In addition, in one embodiment, the left end surface of the knob shaft 15 is fixedly connected with a size knob 14 located outside, the upper end wall of the speed regulation cavity 18 is communicated with a speed regulation slider cavity 46, the left side of the speed regulation slider cavity 46 is provided with a bevel gear cavity 43 located on the upper side of the speed regulation cavity 18, the right end wall of the speed regulation cavity 18 is communicated with a conical friction wheel cavity 28, the right end wall of the speed regulation cavity 18 is communicated with a main friction wheel cavity 48 communicated with the lower end wall of the conical friction wheel cavity 28, the right side of the main friction wheel cavity 48 is provided with a transmission gear cavity 57 located on the lower side of the conical friction wheel cavity 28, the lower side of the transmission gear cavity 57 is provided with a belt wheel cavity 50 located on the right side of the spline shaft 19, the lower side of the belt wheel cavity 50 is provided with a motor 21 fixedly connected with the main body box 10, the upper side of the conical friction wheel cavity 28 is provided with a control cavity 25, the utility model discloses a speed regulation button 25, including speed regulation button 63, cleaning button 68, trigger magnetic block 61, speed regulation button 63 left end face with fixedly connected with control spring 58 between the left end wall of control chamber 25, be equipped with the clean button chamber 60 that the opening is right in the speed regulation button 63, sliding fit is connected with the clean button 68 that extends to the external world right in the clean button chamber 60, clean button 68 left end face fixedly connected with trigger magnetic block 61, trigger magnetic block 61 left end face with fixedly connected with trigger spring 59 between the clean button chamber.
In addition, in one embodiment, the left end of the upper end wall of the cleaning button cavity 60 is communicated with a magnetic through cavity 67, the upper end wall of the magnetic through cavity 67 is communicated with a limiting magnetic block cavity 65 with an upward opening, a limiting magnetic block 64 capable of corresponding to the trigger magnetic block 61 is connected in the limiting magnetic block cavity 65 in a sliding fit manner, a limiting magnetic block spring 66 is fixedly connected between the lower end surface of the limiting magnetic block 64 and the lower end wall of the limiting magnetic block cavity 65, the upper end wall of the control cavity 25 is fixedly connected with a limiting block 62 which is positioned on the left side of the limiting magnetic block 64 and capable of abutting against the limiting magnetic block 64, the left end wall of the bevel gear cavity 43 is connected in a matching manner with a cam shaft 23 which rotates leftwards into the cam cavity 11 and rightwards into the bevel gear cavity 43, a cam 22 fixedly connected with the cam shaft 23 is arranged in the cam cavity 11, the lower end surface of the cam 22 abuts against a push block 12 which is, a push rod 13 is fixedly connected between the lower end face of the push block 12 and the upper end face of the cleaning box 39, an auxiliary friction wheel shaft 36 which extends downwards into the auxiliary friction wheel cavity 35 and upwards into the bevel gear cavity 43 is connected in a rotating fit manner in the lower end wall of the bevel gear cavity 43, an auxiliary bevel gear 42 fixedly connected with the cam shaft 23 is arranged in the bevel gear cavity 43, and a main bevel gear 40 fixedly connected with the auxiliary friction wheel shaft 36 is meshed with the lower side of the auxiliary bevel gear 42.
In addition, in one embodiment, a speed regulating slider 45 is connected in a sliding fit manner in the speed regulating slider cavity 46, a speed regulating spring 44 is fixedly connected between the upper end surface of the speed regulating slider 45 and the upper end wall of the speed regulating slider cavity 46, a speed regulating main shaft 47 which extends upwards and penetrates through the speed regulating cavity 18 to the inside of the speed regulating slider cavity 46 and is connected with the speed regulating slider 45 in a rotating fit manner is connected in a spline fit manner in the spline shaft 19, a speed regulating friction wheel 41 which is fixedly connected with the speed regulating main shaft 47 and can be abutted against the auxiliary friction wheel 37 is arranged in the speed regulating cavity 18, a motor main shaft 49 which extends upwards and penetrates through the pulley cavity 50 to the inside of the main friction wheel cavity 48 and is connected with the main box 10 in a rotating fit manner is fixedly connected on the upper end surface of the motor 21, a main friction wheel 53 which is fixedly connected with the motor main shaft 49 and can be abutted, the conical friction wheel shaft 54 which extends downwards into the transmission gear cavity 57 and extends upwards into the conical friction wheel cavity 28 is connected in a rotationally matched manner in the lower end wall of the conical friction wheel cavity 28, and a conical friction wheel 27 which is fixedly connected with the conical friction wheel shaft 54 and is abutted against the speed regulation friction wheel 41 is arranged in the conical friction wheel cavity 28.
In addition, in one embodiment, a transmission bevel gear shaft 52 extending downward into the pulley cavity 50 and extending upward into the transmission gear cavity 57 and located on the right side of the conical friction wheel shaft 54 is connected to the lower end wall of the transmission gear cavity 57 in a rotationally fitting manner, a transmission straight gear 55 fixedly connected with the conical friction wheel shaft 54 is arranged in the transmission gear cavity 57, a transmission bevel gear 56 fixedly connected with the transmission bevel gear shaft 52 is meshed at the right side of the transmission straight gear 55, a transmission belt 51 positioned in the pulley cavity 50 is connected between the motor main shaft 49 and the transmission bevel gear shaft 52 in a power fit manner, a pull rope 24 is fixedly connected between the upper end surface of the speed regulating slide block 45 and the left end surface of the speed regulating button 63, the thrust of the control spring 58 is greater than the thrust of the speed regulating spring 44, and the attractive force between the trigger magnetic block 61 and the limit magnetic block 64 is greater than the thrust of the limit magnetic block spring 66.
The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.
As shown in fig. 1-5, when the device of the present invention is in an initial state, the brush 17 and the grinding wheel 20 are in a disengaged state, the speed adjusting spring 44 is in a compressed state, the trigger magnetic block 61 and the limit magnetic block 64 are in a disengaged state, and the limit magnetic block spring 66 is in a relaxed state;
sequence of mechanical actions of the whole device:
when the grinding machine starts to work, the motor 21 is started to drive the motor main shaft 49 to rotate so as to drive the main friction wheel 53 to idle, the motor main shaft 49 drives the transmission bevel gear shaft 52 to rotate through the transmission belt 51 so as to drive the transmission bevel gear 56 to rotate, the transmission bevel gear 56 drives the conical friction wheel shaft 54 to rotate through the transmission straight gear 55 so as to drive the conical friction wheel 27 to rotate so as to drive the speed regulation friction wheel 41 to rotate, the speed regulation friction wheel 41 drives the spline shaft 19 to rotate through the speed regulation main shaft 47 so as to drive the grinding wheel 20 to rotate, so that the workpiece is abutted against the outer edge surface of the grinding wheel 20 at the moment, and the grinding treatment;
when the grinding speed needs to be adjusted, the speed regulating button 63 is pressed leftwards at the moment, and the cleaning button 68 is not contacted at the moment, so that the speed regulating button 63 moves leftwards by overcoming the thrust of the control spring 58, and the pull rope 24 is in a gradually loosened state, so that the speed regulating slider 45 loses the thrust of the pull rope 24 at the moment, and the speed regulating slider 45 moves downwards under the thrust of the speed regulating spring 44, so that the speed regulating slider 45 drives the speed regulating friction wheel 41 to move downwards through the speed regulating main shaft 47, and the abutting position of the speed regulating friction wheel 41 and the conical friction wheel 27 is changed, so that the transmission ratio between the speed regulating friction wheel 41 and the conical friction wheel 27 is changed, namely the conical friction wheel 27 drives the speed regulating friction wheel 41 to accelerate the rotating speed, so that the rotating speed of the grinding wheel 20 is finally accelerated, the grinding speed is accelerated, and the grinding speed is adjusted, when the speed regulating button 63 is pressed leftwards to enable the limiting magnetic block 64 to be abutted with the limiting block 62, the speed regulating friction wheel 41 correspondingly moves downwards to be abutted with the tail end of the lower side of the outer edge surface of the conical friction wheel 27, namely the rotating speed of the grinding wheel 20 is the maximum;
when the outer edge surface of the grinding wheel 20 needs to be cleaned, so that when the limiting magnetic block 64 is in a butting state with the limiting block 62, the cleaning button 68 is pressed leftwards, the pushing force of the trigger magnetic block 61 is overcome, the trigger magnetic block 61 is driven to move leftwards, the trigger magnetic block 61 is in a corresponding state with the limiting magnetic block 64, the attraction force between the limiting magnetic block 64 and the cleaning button 68 overcomes the pushing force of the limiting magnetic block spring 66, the limiting magnetic block 64 is driven to move downwards to be in a separation state with the limiting block 62, the speed regulating button 63 can continue to move leftwards at the moment, the pull rope 24 can continue to be loosened, the speed regulating friction wheel 41 can continue to move downwards, the speed regulating friction wheel 41 can just be in a separation state with the conical friction wheel 27, and the speed regulating friction wheel 41 is in a butting state with the auxiliary friction wheel 37 and the main friction wheel 53 at the moment, so that the main friction wheel 53, the speed regulation friction wheel 41 drives the spline shaft 19 to rotate through the speed regulation main shaft 47, so as to drive the grinding wheel 20 to rotate, and the rotation speed of the grinding wheel 20 is slower at the moment due to the relation of the transmission ratio between the main friction wheel 53 and the speed regulation friction wheel 41;
meanwhile, the speed regulation friction wheel 41 drives the auxiliary friction wheel shaft 36 to rotate through the auxiliary friction wheel 37, so as to drive the main bevel gear 40 to rotate, the main bevel gear 40 drives the cam shaft 23 to rotate through the auxiliary bevel gear 42, so as to drive the cam 22 to rotate, the cam 22 drives the brush 17 to abut against the outer edge surface of the grinding wheel 20 through the cleaning slide block shaft 33 and the cleaning slide block 16 through the push block 12 and the push rod 13 and simultaneously cooperates with the pulling force of the main spring 34, so as to drive the cleaning box 39 to reciprocate up and down in the cleaning box cavity 38, so that the cleaning box 39 drives the brush 17 to abut against the outer edge surface of the grinding wheel 20 through the cleaning slide block shaft 33 and the cleaning slide block 16 and reciprocates up and down, and cooperates with the slow rotation of the grinding wheel 20, so as to clean the outer edge surface of the grinding wheel 20, so as to prevent dust particles left on the outer edge surface of the grinding wheel 20 from affecting the grinding to a certain extent, the trigger magnetic block 61 and the limiting magnetic block 64 are in a separated state again, so that the limiting magnetic block 64 moves upwards under the thrust of the limiting magnetic block spring 66, and the speed regulation button 63 is gradually loosened, so that the limiting magnetic block 64 moves rightwards to be positioned on the right side of the limiting block 62, and the pull rope 24 is gradually tightened at the moment, so that the speed regulation friction wheel 41 moves upwards to be abutted against the conical friction wheel 27 again, so that the grinding wheel 20 can continuously and rapidly rotate, namely the device can rapidly return to the grinding work, and the influence on the grinding process of the workpiece is reduced;
at the same time, the speed regulating friction wheel 41 is disengaged from the auxiliary friction wheel 37 and the main friction wheel 53 again, so that the cam 22 stops rotating, and the cleaning box 39 moves upwards to the initial state under the pulling force of the main spring 34, namely, the hairbrush 17 is disengaged from the grinding wheel 20, and the auxiliary adjusting friction wheel 30 is abutted against the main adjusting friction wheel 29 again;
when emery wheel 20 changes to bigger diameter, through rotating size knob 14, thereby drive knob axle 15 and rotate, thereby drive main regulation friction pulley 29 and rotate, thereby it rotates to drive vice regulation friction pulley 30, thereby it rotates to drive clean slider axle 33, thereby it moves left to drive clean slider 16, thereby it moves left to drive brush 17, thereby it can be in the butt state again with the emery wheel 20 of bigger diameter to make brush 17, thereby it is applicable in the emery wheel 20 of different specifications to make the device, can clean the emery wheel 20 of different specifications, the universality of device has been improved.
The invention has the beneficial effects that: this device passes through speed governing button and its inside clean button, thereby speed governing and clear integrated control have been realized, when needs are cleaned the emery wheel promptly, can press clean button and speed governing button simultaneously, thereby make emery wheel rotational speed slow down automatically, the cooperation can be at emery wheel outer fringe face reciprocating motion's brush simultaneously, thereby the cleanness of emery wheel has been realized, and through rotating the size knob, can be according to the arbitrary position of adjusting the brush of emery wheel diameter, the universality is higher, and only need loosen speed governing button can switch back immediately and beat the mode of grinding, and is comparatively convenient, the efficiency of polishing of work piece has been improved.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a handheld grinding device suitable for it is clean that many sizes emery wheel key, includes the main part case, its characterized in that: the cleaning box comprises a main body box, and is characterized in that a cleaning box cavity with a downward opening is arranged in the main body box, a cam cavity is arranged in the end communication of the left side of the upper end wall of the cleaning box cavity, the upper side of the cleaning box cavity is provided with an auxiliary friction wheel cavity positioned on the right side of the cam cavity, a speed regulation cavity is arranged in the end communication of the right side of the auxiliary friction wheel cavity, the inner rotation fit of the lower end wall of the speed regulation cavity is connected with a downward extending part and upwards extending part of a spline shaft in the speed regulation cavity, the lower end face of the spline shaft is fixedly connected with an external grinding wheel, the inner rotation fit of the lower end face of the spline shaft is connected with a cleaning box, the upper end face of the cleaning box is fixedly connected with a main spring between the upper end wall of the cleaning box cavity, a cleaning slider cavity with a downward opening is arranged in the cleaning box, the inner rotation fit of the right end Extend external clean slider, clean slider right-hand member face fixedly connected with be located the external world and can with the brush of emery wheel outer fringe face butt, clean incasement be equipped with clean slider axle fixed connection's vice regulation friction pulley, clean incasement chamber left end wall normal running fit is connected with and extends to the external world left and extend to right clean incasement cavity just is located the knob axle of vice regulation friction pulley upside, vice regulation friction pulley upside be equipped with can with vice regulation friction pulley butt and with knob axle fixed connection's main regulation friction pulley.
2. A hand-held grinding device suitable for one-touch cleaning of multi-size grinding wheels according to claim 1, wherein: the rotary knob shaft is characterized in that a size knob located outside is fixedly connected to the left end face of the rotary knob shaft, a speed regulation slider cavity is communicated to the upper end wall of the speed regulation cavity, a bevel gear cavity located on the upper side of the speed regulation cavity is arranged on the left side of the speed regulation slider cavity, a conical friction wheel cavity is communicated to the right end wall of the speed regulation cavity, a main friction wheel cavity communicated to the lower end wall of the conical friction wheel cavity is arranged on the right side of the main friction wheel cavity, a transmission gear cavity located on the lower side of the conical friction wheel cavity is arranged on the lower side of the transmission gear cavity, a belt wheel cavity located on the right side of the spline shaft is arranged on the lower side of the belt wheel cavity, a motor fixedly connected with the main box is arranged on the lower side of the belt wheel cavity, a control cavity with a rightward opening is arranged on the upper side of the conical friction wheel cavity, a speed regulation button extending, be equipped with the clean button chamber of opening right in the speed governing button, clean button intracavity sliding fit is connected with the clean button that extends to the external world right, clean button left end face fixedly connected with triggers the magnetic path, trigger the magnetic path left end face with fixedly connected with trigger spring between the clean button chamber left end wall.
3. A hand-held grinding device suitable for one-touch cleaning of multi-size grinding wheels according to claim 2, wherein: the left end of the upper end wall of the cleaning button cavity is communicated with a magnetic through cavity, the upper end wall of the magnetic through cavity is communicated with a limiting magnetic block cavity with an upward opening, the limiting magnetic block cavity is connected with a limiting magnetic block capable of corresponding to the trigger magnetic block in a sliding fit manner, a limiting magnetic block spring is fixedly connected between the lower end surface of the limiting magnetic block and the lower end wall of the limiting magnetic block cavity, the upper end wall of the control cavity is fixedly connected with a limiting block which is positioned on the left side of the limiting magnetic block and can be abutted against the limiting magnetic block, the left end wall of the bevel gear cavity is connected with a cam shaft which extends leftwards into the cam cavity and rightwards into the bevel gear cavity in a rotating fit manner, a cam fixedly connected with the cam shaft is arranged in the cam cavity, the lower end surface of the cam is abutted against a push block in sliding fit connection with the cam cavity, the lower end wall of the bevel gear cavity is connected with an auxiliary friction wheel shaft which extends downwards into the auxiliary friction wheel cavity and extends upwards into the bevel gear cavity in a rotating fit mode, an auxiliary bevel gear fixedly connected with the cam shaft is arranged in the bevel gear cavity, and a main bevel gear fixedly connected with the auxiliary friction wheel shaft is meshed with the lower side of the auxiliary bevel gear.
4. A hand-held grinding device suitable for one-touch cleaning of multi-size grinding wheels according to claim 2, wherein: the speed regulating slide block is connected in a sliding fit manner in the speed regulating slide block cavity, a speed regulating spring is fixedly connected between the upper end surface of the speed regulating slide block and the upper end wall of the speed regulating slide block cavity, the spline in the spline shaft is connected with a speed regulating main shaft which extends upwards and penetrates through the speed regulating cavity into the speed regulating slide block cavity and is connected with the speed regulating slide block in a rotating fit manner, a speed regulating friction wheel which is fixedly connected with the speed regulating main shaft and can be abutted against the auxiliary friction wheel is arranged in the speed regulating cavity, the upper end surface of the motor is fixedly connected with a motor main shaft which extends upwards and penetrates through the belt wheel cavity into the main friction wheel cavity and is connected with the main body box in a rotating fit manner, the main friction wheel which is fixedly connected with the motor main shaft and can be abutted against the speed regulating friction wheel is arranged in the main friction wheel cavity, and the lower end wall of the conical friction wheel cavity is, the conical friction wheel cavity is internally provided with a conical friction wheel which is fixedly connected with the conical friction wheel shaft and is abutted against the speed regulation friction wheel.
5. A hand-held grinding device suitable for one-touch cleaning of multi-size grinding wheels according to claim 4, wherein: the utility model discloses a speed governing device, including transmission gear, belt pulley, speed governing slider, control spring, drive gear cavity, drive gear shaft, drive gear cavity lower extreme wall internal rotation cooperation be connected with downwardly extending to the belt pulley cavity just upwards extends to the drive gear cavity just is located the transmission bevel gear axle on toper friction wheel axle right side, the transmission gear intracavity be equipped with toper friction wheel axle fixed connection's transmission straight-teeth gear, the meshing in transmission straight-teeth gear right side have with transmission bevel gear shaft fixed connection's transmission bevel gear, motor spindle with power fit is connected with between the transmission bevel gear axle and is located the drive belt of belt pulley cavity, speed governing slider up end with fixedly connected with stay cord between the speed governing button left end face, control spring's thrust is greater than speed governing spring's thrust, trigger.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110050244.0A CN112589621A (en) | 2021-01-14 | 2021-01-14 | Handheld grinding device suitable for one-key cleaning of multi-size grinding wheel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110050244.0A CN112589621A (en) | 2021-01-14 | 2021-01-14 | Handheld grinding device suitable for one-key cleaning of multi-size grinding wheel |
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| CN112589621A true CN112589621A (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110050244.0A Withdrawn CN112589621A (en) | 2021-01-14 | 2021-01-14 | Handheld grinding device suitable for one-key cleaning of multi-size grinding wheel |
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| CN (1) | CN112589621A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113084661A (en) * | 2021-04-19 | 2021-07-09 | 张彪 | Bridge beam supports assembled steel construction preparation system of processing |
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| CN102574263A (en) * | 2009-08-28 | 2012-07-11 | 株式会社牧田 | Power tool |
| DE202014103618U1 (en) * | 2014-08-05 | 2014-09-04 | X'pole Precision Tools Inc. | Hand grinder with the possibility of double adjustment of the flow rate in a single air inlet channel |
| CN108274356A (en) * | 2017-12-11 | 2018-07-13 | 安徽宝辰机电设备科技有限公司 | It is a kind of for derusting and the grinding device of welding slag |
| CN110561243A (en) * | 2019-09-03 | 2019-12-13 | 高小艳 | Handheld metal surface treatment device with multi-rotating-speed adjusting mechanism |
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2021
- 2021-01-14 CN CN202110050244.0A patent/CN112589621A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102574263A (en) * | 2009-08-28 | 2012-07-11 | 株式会社牧田 | Power tool |
| DE202014103618U1 (en) * | 2014-08-05 | 2014-09-04 | X'pole Precision Tools Inc. | Hand grinder with the possibility of double adjustment of the flow rate in a single air inlet channel |
| CN108274356A (en) * | 2017-12-11 | 2018-07-13 | 安徽宝辰机电设备科技有限公司 | It is a kind of for derusting and the grinding device of welding slag |
| CN110561243A (en) * | 2019-09-03 | 2019-12-13 | 高小艳 | Handheld metal surface treatment device with multi-rotating-speed adjusting mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113084661A (en) * | 2021-04-19 | 2021-07-09 | 张彪 | Bridge beam supports assembled steel construction preparation system of processing |
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