CN113146394A - Quick replacing device for grinding disc of ground grinding machine - Google Patents
Quick replacing device for grinding disc of ground grinding machine Download PDFInfo
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- CN113146394A CN113146394A CN202110579931.1A CN202110579931A CN113146394A CN 113146394 A CN113146394 A CN 113146394A CN 202110579931 A CN202110579931 A CN 202110579931A CN 113146394 A CN113146394 A CN 113146394A
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- Prior art keywords
- plate
- grinding
- fixed column
- groove
- connecting rod
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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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
- B24B7/186—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like with disc-type tools
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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
- B24B45/00—Means for securing grinding wheels on rotary arbors
- B24B45/003—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
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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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 discloses a quick replacing device for a grinding sheet of a ground grinder, which comprises a machine body, wherein a circular cover plate is installed at the front end of the lower end face of the machine body, an annular plate is installed at the bottom of the circular cover plate, a motor is installed at the top of the machine body, the output end of the motor is connected with a driving roller, a transmission mechanism is installed inside the machine body, the bottom end of the driving roller penetrates through the machine body and is connected with one end of the transmission mechanism, the other end of the transmission mechanism is connected with a transmission roller, the bottom end of the transmission roller penetrates through the circular cover plate and is positioned on the inner side of the annular plate, a fixing column is fixed at the bottom end of the transmission roller through threads, and a grinding sheet is arranged on the outer side of the fixing column. According to the quick replacing device for the grinding disc for the ground grinder, the grinding disc can be quickly installed and detached through the mutual matching of the arranged fixing column and the grinding disc, the grinding disc is more convenient and quicker to replace, and after the clamping block completely enters the first clamping groove, the convex block triggers the pressure sensor.
Description
Technical Field
The invention relates to the technical field of electromechanical equipment, in particular to a quick replacing device for a grinding sheet for a ground grinding machine.
Background
The polishing of the cement ground increases the glossiness of the terrace, has good aesthetic property, is clean, dustproof and convenient for daily cleaning, can be used in industrial places such as industrial factory buildings and warehouses, and can also be used in units and commercial places such as families, schools, enterprises and stores, after the ground polisher is used for a long time, the polishing effect of the grinding sheet is reduced, the grinding sheet needs to be replaced, the existing grinding sheet replacing method needs to put down or incline the polisher, the grinding sheet at the bottom of the polisher leaks out, workers replace the polisher, and hands contact the grinding sheet in the replacing process, so that accidental injury can be caused, the efficiency is low, and certain danger exists; and the fixation of abrasive disc needs to use the screw, and the loaded down with trivial details waste a large amount of time of installation and dismantlement.
Therefore, we provide a ground is abrasive disc quick replacement device for polisher, at first, the fixed column and the abrasive disc that set up need not use the screw to fix, installation and dismantlement that can be quick, the change convenient and fast of abrasive disc, and secondly, the cooperation between the photosensitive detector and the fluorescent plate that set up is used, does not need the position that the abrasive disc was observed to the slope polisher, can directly align fixed column and abrasive disc.
Disclosure of Invention
The invention mainly aims to provide a quick replacing device for a grinding disc for a ground grinder, wherein a fixed column and the grinding disc are not required to be fixed by screws, so that the quick replacing device can be quickly installed and disassembled, and the grinding disc is convenient and quick to replace; the photosensitive detector who sets up and the cooperation between the fluorescent plate are used, do not need the position that the abrasive disc was observed to the slope polisher, can directly align fixed column and abrasive disc, can effectively solve the problem among the background art.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a ground is abrasive disc quick replacement device for polisher, includes the organism, circular apron is installed to the front end of the lower terminal surface of organism, the annular plate is installed to circular apron's bottom, the motor is installed at the top of organism, the output of motor is connected with the drive roll, the internally mounted of organism has drive mechanism, the bottom of drive roll is passed the organism and is connected with drive mechanism's one end, drive mechanism's the other end is connected with installs the driving roller, the bottom of driving roller runs through circular apron and is located the inboard of annular plate, the bottom threaded fixation of driving roller has the fixed column, the outside of fixed column is provided with the abrasive disc, the bottom of abrasive disc and the bottom parallel and level of annular plate and be located the inboard of annular plate.
Furthermore, an installation cavity is formed in the axis of the grinding disc, the fixed column is inserted into the installation cavity, a cavity is longitudinally formed in the grinding disc, the two cavities are respectively located on two sides of the installation cavity, a through hole is transversely formed in the grinding disc, two ends of the through hole are communicated with the cavity and the installation cavity, a first clamping groove is formed in the top of the grinding disc, a second clamping groove is formed in the bottom of the grinding disc, the upper end and the lower end of the cavity are respectively communicated with the first clamping groove and the second clamping groove, a connecting rod is placed in the installation cavity, a plug rod is fixed on one side, close to the installation cavity, of the connecting rod, penetrates through the through hole, the diameter of the plug rod is matched with the aperture of the through hole, a rotating shaft is installed in the grinding disc, the two rotating shafts are both located at the junction between the cavity and the second clamping groove, and the upper, the bottom of the grinding plate is provided with a grinding block.
Further, the outside of fixed column is seted up flutedly, the internally mounted of recess has reset spring, reset spring's tail end and fixed column are connected, the fixture block is installed in the outside of fixed column, two the fixture block is located the up end of recess and the size and the first draw-in groove phase-match of fixture block, electric push rod is all installed to the both sides of the bottom of fixed column, when electric push rod stretches out, to the first clamp plate extrusion in the second draw-in groove, the inner wall of tight abrasive disc is pasted and drive the pivot rotation in one side of keeping away from the installation cavity to first clamp plate, the tight connecting rod is pasted to one side of being close to the installation cavity of second clamp plate, the diameter of recess is the same with the diameter of through-hole and helps the gag.
Further, expansion plate, photosensitive detector and pressure sensor are installed to the bottom of fixture block, the expansion plate is located the one side that is close to the fixed column, photosensitive detector is located between expansion plate and the pressure sensor.
Further, a fluorescent plate is installed at the bottom of the first clamping groove, a protruding block is installed on the upper surface of the fluorescent plate, and the protruding block is located under the pressure sensor.
Furthermore, the expansion plate is located directly over the cavity, the width sum of expansion plate and connecting rod should be the same with the diameter of cavity, the expansion plate stretches out the back and fixes the connecting rod in the cavity and avoids its side to side slip, the length of stopper pole should make it can not follow the through-hole in the slip.
Further, current detector is installed at the top of organism, current detector and motor electric connection, the last surface mounting of organism has the support frame, the rudder is installed at the top of support frame, jack and jack position in the rear of annular plate are installed to the bottom of organism.
Further, a quick replacement device of grinding disc for ground grinder, the use step is as follows:
a: after the grinding block at the bottom of the grinding sheet is ground for a long time, the friction force is reduced to influence the grinding effect, the working power of the motor is changed at the moment, the current detector detects the current change to determine that the grinding sheet needs to be replaced, the electric push rod and the telescopic plate on the fixed column are controlled to be retracted, the connecting rod loses the extrusion force of the second pressing plate and the telescopic plate on the connecting rod, the plug rod is ejected out of the groove by a reset spring in the groove, the machine body is jacked up by starting the jack, and the fixed column is separated from the grinding sheet;
b: after the step A is finished, taking out the worn abrasive disc, placing a new abrasive disc under the annular plate, controlling the contraction speed of the jack, slowly descending the machine body, inserting the fixed column into the installation cavity of the abrasive disc, when the bottom of the annular plate moves to the position above the abrasive disc, enabling the photosensitive detector to conveniently measure the position of the fluorescent plate due to dark light inside the annular plate, starting the motor to drive the driving roller to rotate, driving the driving roller to drive the driving roller to rotate through the transmission mechanism, driving the fixed column to rotate through the driving roller, enabling the photosensitive detector to rotate to the position above the fluorescent plate to receive an optical signal, and stopping the motor to rotate to enable the clamping block to be located right above the first clamping groove;
c: accomplish after the B step, the control organism continues to descend, after the fixture block got into first draw-in groove completely, lug trigger pressure sensor, make the electric push rod stretch out the fixed column and extrude first clamp plate, rotation through the pivot makes the second clamp plate press to the connecting rod, the expansion plate stretches out downwards simultaneously and gets into the cavity, second clamp plate and expansion plate mutually support and extrude fixedly to the connecting rod, avoid the connecting rod horizontal slip in the cavity, the fixed in-process of connecting rod, the cock stem passes inside the through-hole gets into the recess, and extrude reset spring, the cock stem is used for avoiding taking place to rotate between abrasive disc and fixed post, fixture block and electric push rod are located first draw-in groove and second draw-in groove respectively, avoid sliding from top to bottom between abrasive disc and fixed post, the abrasive disc is changed and is accomplished.
Compared with the prior art, the invention has the following beneficial effects:
1. the rapid mounting and dismounting can be achieved through the mutual matching between the arranged fixed column and the grinding disc, the grinding disc is more convenient and rapid to replace, when the clamping block completely enters the first clamping groove, the lug triggers the pressure sensor, the electric push rod extends out of the fixed column and extrudes the first pressing plate, the second pressing plate is pressed towards the connecting rod through the rotation of the rotating shaft, meanwhile, the expansion plate extends downwards and enters the cavity, the second pressing plate and the expansion plate are mutually matched to extrude and fix the connecting rod, the connecting rod is prevented from sliding left and right in the cavity, in the fixing process of the connecting rod, the plug rod penetrates through the through hole to enter the groove and extrudes the reset spring, the plug rod is used for preventing the grinding disc and the fixed column from rotating, the clamping block and the electric push rod are respectively located in the first clamping groove and the second clamping groove, the grinding disc and the fixed column from sliding up and down, and the grinding disc is rapidly replaced while the firmness of the grinding disc mounting is ensured;
2. through the cooperation between the photosensitive detector who sets up and the fluorescent screen, the position of abrasive disc is observed to the polisher that does not need to incline, can be directly align fixed column and abrasive disc, when the bottom of annular plate moved the top of abrasive disc, annular plate inside light was darker be convenient for photosensitive detector and is measured the position at fluorescent screen place, starter motor this moment, the fixed column slow rotation that drives the driving roller lower extreme through drive mechanism, photosensitive detector rotates the top of fluorescent screen and receives optical signal, motor stall, the fixture block is located first draw-in groove directly over, through-hole in the while abrasive disc aligns with the recess in the fixed column.
Drawings
Fig. 1 is a schematic view showing the overall structure of a quick change device of a grinding chip for a floor grinder according to the present invention.
Fig. 2 is a schematic view of the interior of a portion of a quick change device for a grinding blade for a floor grinding machine according to the present invention.
Figure 3 is a cross-sectional view of a blade quick change device for a floor grinding machine in accordance with the present invention.
Fig. 4 is a schematic view of a connecting structure of a grinding sheet and a fixing column of the quick-changing device for the grinding sheet of the ground grinder.
Fig. 5 is an enlarged schematic view of a in fig. 4 of a blade quick change apparatus for a floor grinding machine according to the present invention.
Fig. 6 is a schematic top view of the inner structure of an annular plate of a quick-change device for grinding chips for a floor grinding machine according to the present invention.
In the figure: 1. a body; 2. a circular cover plate; 3. an annular plate; 4. a current detector; 5. a motor; 6. a support frame; 7. a steering rudder; 8. a drive roll; 9. a transmission mechanism; 10. a driving roller; 11. fixing a column; 12. grinding; 13. a jack; 14. a mounting cavity; 15. a cavity; 16. a first card slot; 17. a second card slot; 18. a rotating shaft; 19. a first platen; 20. a second platen; 21. a through hole; 22. a bump; 23. a clamping block; 24. an electric push rod; 25. grinding blocks; 26. a retractable plate; 27. a photosensitive detector; 28. a pressure sensor; 29. a connecting rod; 30. a stopper rod; 31. a groove; 32. a return spring; 33. a fluorescent plate.
Detailed Description
The present invention will be further described with reference to the following detailed description, wherein the drawings are for illustrative purposes only and are not intended to be limiting, wherein certain elements may be omitted, enlarged or reduced in size, and are not intended to represent the actual dimensions of the product, so as to better illustrate the detailed description of the invention.
Example 1
As shown in figures 1-6, a quick grinding disc replacing device for a ground grinder comprises a machine body (1), a circular cover plate (2) is installed at the front end of the lower end face of the machine body (1), a ring plate (3) is installed at the bottom of the circular cover plate (2), a motor (5) is installed at the top of the machine body (1), an output end of the motor (5) is connected with a driving roller (8), a transmission mechanism (9) is installed inside the machine body (1), the bottom end of the driving roller (8) penetrates through the machine body (1) and is connected with one end of the transmission mechanism (9), the other end of the transmission mechanism (9) is connected with a transmission roller (10), the bottom end of the transmission roller (10) penetrates through the circular cover plate (2) and is located on the inner side of the ring plate (3), a grinding disc (11) is fixed to the bottom end of the transmission roller (10) through a thread, and a fixing column (12) is arranged on the outer side of the fixing column (11), the bottom end of the grinding sheet (12) is flush with the bottom end of the annular plate (3) and is positioned on the inner side of the annular plate (3).
An installation cavity (14) is formed in the axis of the grinding sheet (12), the fixing column (11) is inserted into the installation cavity (14), cavities (15) are longitudinally formed in the grinding sheet (12), the two cavities (15) are respectively located on two sides of the installation cavity (14), a through hole (21) is transversely formed in the grinding sheet (12), two ends of the through hole (21) are communicated with the cavities (15) and the installation cavity (14), a first clamping groove (16) is formed in the top of the grinding sheet (12), a second clamping groove (17) is formed in the bottom of the grinding sheet (12), the upper end and the lower end of the cavity (15) are respectively communicated with the first clamping groove (16) and the second clamping groove (17), a connecting rod (29) is placed in the installation cavity (14), a plug rod (30) is fixed on one side, close to the installation cavity (14), the plug rod (30) penetrates through the through hole (21), and the diameter of the plug rod (30) is matched with the aperture of the through hole (21), the inside mounting of abrasive disc (12) has pivot (18), two pivot (18) all are located the juncture between cavity (15) and second draw-in groove (17), the upper and lower both sides of pivot (18) are connected with first clamp plate (19) and second clamp plate (20) respectively, the bottom of abrasive disc (12) is provided with abrasive brick (25), second draw-in groove (17) can be blocked by electric push rod (24) and first clamp plate (19) that stretch out, the dust that produces when avoiding polishing gets into in cavity (15).
A groove (31) is formed in the outer side of the fixing column (11), a return spring (32) is installed in the groove (31), the tail end of the return spring (32) is connected with the fixing column (11), clamping blocks (23) are installed on the outer side of the fixing column (11), the two clamping blocks (23) are located on the upper end face of the groove (31), the sizes of the clamping blocks (23) are matched with those of the first clamping grooves (16), electric push rods (24) are installed on two sides of the bottom of the fixing column (11), when the electric push rods (24) extend out, the electric push rods extrude the first pressing plate (19) in the second clamping groove (17), one side, far away from the installation cavity (14), of the first pressing plate (19) is tightly attached to the inner wall of the grinding plate (12) and drives the rotating shaft (18) to rotate, one side, close to the installation cavity (14), of the second pressing plate (20) is tightly attached to the connecting rod (29), the diameter of the groove (31) is the same as that of the through hole (21), and insertion of the plug rod (30) is facilitated, the inside of the fixed column (11) is provided with a power supply for the operation of the expansion plate (26) and the electric push rod (24).
The bottom of the clamping block (23) is provided with a telescopic plate (26), a photosensitive detector (27) and a pressure sensor (28), the telescopic plate (26) is positioned on one side close to the fixed column (11), and the photosensitive detector (27) is positioned between the telescopic plate (26) and the pressure sensor (28).
The expansion plate (26) is located right above the cavity (15), the width of the expansion plate (26) and the width of the connecting rod (29) are equal to the diameter of the cavity (15), the connecting rod (29) is fixed in the cavity (15) after the expansion plate (26) extends out to avoid sliding left and right, and the length of the plug rod (30) is required to enable the plug rod not to slide out of the through hole (21).
Current detector (4) are installed at the top of organism (1), current detector (4) and motor (5) electric connection, and the last surface mounting of organism (1) has support frame (6), and rudder (7) are installed at the top of support frame (6), and jack (13) are installed to the bottom of organism (1) and are located the rear of annular plate (3).
By adopting the technical scheme: through the mutually-matched installation and disassembly between the arranged fixed column (11) and the grinding sheet (12), the grinding sheet (12) is more convenient and quicker to replace, after the clamping block (23) completely enters the first clamping groove (16), the convex block (22) triggers the pressure sensor (28), the electric push rod (24) extends out of the fixed column (11) and extrudes the first pressing plate (19), the second pressing plate (20) is pressed to the connecting rod (29) through the rotation of the rotating shaft (18), meanwhile, the expansion plate (26) extends downwards to enter the cavity (15), the second pressing plate (20) and the expansion plate (26) are mutually matched to extrude and fix the connecting rod (29), the connecting rod (29) is prevented from sliding left and right in the cavity (15), the connecting rod (29) is fixed, the plug rod (30) penetrates through the through hole (21) to enter the groove (31) and extrudes the reset spring (32), the plug rod (30) is used for preventing the grinding sheet (12) and the fixed column (11) from rotating, the clamping block (23) and the electric push rod (24) are respectively located in the first clamping groove (16) and the second clamping groove (17), so that the grinding sheet (12) and the fixing column (11) are prevented from sliding up and down, and the firmness of installation of the grinding sheet (12) is ensured while the grinding sheet (12) is replaced quickly.
Example 2
As shown in figures 1-6, a quick grinding disc replacing device for a ground grinder comprises a machine body (1), a circular cover plate (2) is installed at the front end of the lower end face of the machine body (1), a ring plate (3) is installed at the bottom of the circular cover plate (2), a motor (5) is installed at the top of the machine body (1), an output end of the motor (5) is connected with a driving roller (8), a transmission mechanism (9) is installed inside the machine body (1), the bottom end of the driving roller (8) penetrates through the machine body (1) and is connected with one end of the transmission mechanism (9), the other end of the transmission mechanism (9) is connected with a transmission roller (10), the bottom end of the transmission roller (10) penetrates through the circular cover plate (2) and is located on the inner side of the ring plate (3), a grinding disc (11) is fixed to the bottom end of the transmission roller (10) through a thread, and a fixing column (12) is arranged on the outer side of the fixing column (11), the bottom end of the grinding sheet (12) is flush with the bottom end of the annular plate (3) and is positioned on the inner side of the annular plate (3).
An installation cavity (14) is formed in the axis of the grinding sheet (12), the fixing column (11) is inserted into the installation cavity (14), cavities (15) are longitudinally formed in the grinding sheet (12), the two cavities (15) are respectively located on two sides of the installation cavity (14), a through hole (21) is transversely formed in the grinding sheet (12), two ends of the through hole (21) are communicated with the cavities (15) and the installation cavity (14), a first clamping groove (16) is formed in the top of the grinding sheet (12), a second clamping groove (17) is formed in the bottom of the grinding sheet (12), the upper end and the lower end of the cavity (15) are respectively communicated with the first clamping groove (16) and the second clamping groove (17), a connecting rod (29) is placed in the installation cavity (14), a plug rod (30) is fixed on one side, close to the installation cavity (14), the plug rod (30) penetrates through the through hole (21), and the diameter of the plug rod (30) is matched with the aperture of the through hole (21), the grinding disc (12) is internally provided with a rotating shaft (18), the two rotating shafts (18) are located at the junction between the cavity (15) and the second clamping groove (17), the upper side and the lower side of each rotating shaft (18) are respectively connected with a first pressing plate (19) and a second pressing plate (20), and the bottom of the grinding disc (12) is provided with a grinding block (25).
A groove (31) is formed in the outer side of a fixing column (11), a return spring (32) is installed inside the groove (31), the tail end of the return spring (32) is connected with the fixing column (11), a clamping block (23) is installed on the outer side of the fixing column (11), the two clamping blocks (23) are located on the upper end face of the groove (31), the size of the clamping block (23) is matched with that of a first clamping groove (16), electric push rods (24) are installed on two sides of the bottom of the fixing column (11), the electric push rods (24) extrude a first pressing plate (19) in a second clamping groove (17) when extending out, one side, far away from a mounting cavity (14), of the first pressing plate (19) is attached to the inner wall of a grinding plate (12) and drives a rotating shaft (18) to rotate, one side, close to the mounting cavity (14), of the second pressing plate (20) is attached to a connecting rod (29), and the diameter of the groove (31) is the same as that of a through hole (21) and insertion of a stopper rod (30) is facilitated.
The bottom of the clamping block (23) is provided with a telescopic plate (26), a photosensitive detector (27) and a pressure sensor (28), the telescopic plate (26) is positioned on one side close to the fixed column (11), and the photosensitive detector (27) is positioned between the telescopic plate (26) and the pressure sensor (28).
A fluorescent plate (33) is installed at the bottom of the first clamping groove (16), a bump (22) is installed on the upper surface of the fluorescent plate (33), and the bump (22) is located right below the pressure sensor (28).
By adopting the technical scheme: through the cooperation use between photosensitive detector (27) that sets up and fluorescent screen (33), the position of abrasive disc (12) is observed to the polisher of need not inclining, can be directly align fixed column (11) and abrasive disc (12), when the bottom of annular plate (3) moves the top of abrasive disc (12), the position at fluorescent screen (33) place is measured to photosensitive detector (27) of being convenient for that annular plate (3) inside light is darker, starting motor (5) this moment, fixed column (11) slow rotation of driving roller (10) lower extreme is driven through drive mechanism (9), photosensitive detector (27) are rotated the top of fluorescent screen (33) and are received light signal, motor (5) stall, fixture block (23) are located first draw-in groove (16) directly over, simultaneously through-hole (21) in abrasive disc (12) and recess (31) in fixed column (11) align.
The invention is to be noted that, when the device is used, firstly, after a grinding block (25) at the bottom of a grinding sheet (12) is ground for a long time, the friction force is reduced to influence the grinding effect, at the moment, the working power of a motor (5) is changed, the grinding sheet (12) is determined to be required to be replaced by detecting the current change through a current detector (4), an electric push rod (24) and a telescopic plate (26) on a fixed column (11) are controlled to withdraw, a connecting rod (29) loses the extrusion force of a second pressing plate (20) and the telescopic plate (26) to the connecting rod, a return spring (32) in a groove (31) ejects a plug rod (30) out of the groove (31), a jack (13) is started to jack up a machine body (1), the fixed column (11) is separated from the grinding sheet (12), secondly, the worn grinding sheet (12) is taken out, and a new grinding sheet (12) is placed under an annular plate (3), controlling the contraction speed of a jack (13), slowly descending a machine body (1), inserting a fixed column (11) into an installation cavity (14) of a grinding plate (12), when the bottom of an annular plate (3) moves to the upper side of the grinding plate (12), the light in the annular plate (3) is dark, so that a photosensitive detector (27) can conveniently detect the position of a fluorescent plate (33), starting a motor (5) to drive a driving roller (8) to rotate, driving roller (8) drives a driving roller (10) to rotate through a transmission mechanism (9), driving roller (10) rotates to drive the fixed column (11) to rotate, photosensitive detector (27) rotates to the upper side of the fluorescent plate (33) to receive an optical signal, stopping rotation of the motor (5), enabling a clamping block (23) to be positioned right above a first clamping groove (16), finally, controlling the machine body (1) to continuously descend, and after the clamping block (23) completely enters the first clamping groove (16), the bump (22) triggers the pressure sensor (28), so that the electric push rod (24) extends out of the fixed column (11) and extrudes the first pressing plate (19), the second pressing plate (20) is pressed towards the connecting rod (29) through the rotation of the rotating shaft (18), meanwhile, the expansion plate (26) extends downwards to enter the cavity (15), the second pressing plate (20) and the expansion plate (26) are matched with each other to extrude and fix the connecting rod (29), the connecting rod (29) is prevented from sliding left and right in the cavity (15), in the fixing process of the connecting rod (29), the plug rod (30) penetrates through the through hole (21) to enter the groove (31) and extrudes the reset spring (32), the plug rod (30) is used for preventing the grinding sheet (12) and the fixed column (11) from rotating, the clamping block (23) and the electric push rod (24) are respectively located in the first clamping groove (16) and the second clamping groove (17), and preventing the grinding sheet (12) and the fixed column (11) from sliding up and down, the replacement of the grinding sheet (12) is completed.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a ground is abrasive disc quick replacement device for polisher, includes the organism, its characterized in that: the front end of the lower end face of the machine body is provided with a circular cover plate, the bottom of the circular cover plate is provided with an annular plate, the top of the machine body is provided with a motor, the output end of the motor is connected with a driving roller, a transmission mechanism is arranged in the machine body, the bottom end of the driving roller penetrates through the machine body and is connected with one end of the transmission mechanism, the other end of the transmission mechanism is connected with a transmission roller, the bottom end of the transmission roller penetrates through the circular cover plate and is positioned on the inner side of the annular plate, a fixed column is fixed to the bottom end of the transmission roller in a threaded manner, an abrasive disc is arranged on the outer side of the fixed column, and the bottom end of the abrasive disc is flush with the bottom end of the annular plate and is positioned on the inner side of the annular plate;
the axis of the grinding disc is provided with an installation cavity, the fixed column is inserted into the installation cavity, the inside of the grinding disc is longitudinally provided with cavities, the two cavities are respectively positioned at two sides of the installation cavity, the inside of the grinding disc is transversely provided with a through hole, two ends of the through hole are communicated with the cavity and the installation cavity, the top of the grinding disc is provided with a first clamping groove, the bottom of the grinding disc is provided with a second clamping groove, the upper end and the lower end of the cavity are respectively communicated with the first clamping groove and the second clamping groove, a connecting rod is placed in the installation cavity, one side of the connecting rod, which is close to the installation cavity, is fixedly provided with a plug rod, the plug rod penetrates through the through hole, the diameter of the plug rod is matched with the aperture of the through hole, a rotating shaft is arranged in the grinding disc, the two rotating shafts are both positioned at the junction between the cavity and the second clamping groove, and the upper side and the lower side of the rotating shaft are respectively connected with a first pressing plate and a second pressing plate, the bottom of the grinding plate is provided with a grinding block.
2. A blade quick change apparatus for a floor grinding machine in accordance with claim 1 wherein: the outer side of the fixed column is provided with a groove, a reset spring is arranged in the groove, the tail end of the reset spring is connected with the fixed column, clamping blocks are arranged on the outer side of the fixed column and are two located on the upper end face of the groove, the size of each clamping block is matched with the corresponding first clamping groove, electric push rods are arranged on two sides of the bottom of the fixed column, the electric push rods extrude first pressing plates in the second clamping grooves when extending out, one side, far away from the installation cavity, of each first pressing plate clings to the inner wall of the grinding disc tightly and drives the rotating shaft to rotate, one side, close to the installation cavity, of each second pressing plate clings to the connecting rod tightly, and the diameter of the groove is the same as that of the through hole, so that the plugging rod can be inserted.
3. A blade quick change apparatus for a floor grinding machine in accordance with claim 2 wherein: the bottom of fixture block is installed expansion plate, photosensitive detector and pressure sensor, the expansion plate is located the one side that is close to the fixed column, photosensitive detector is located between expansion plate and the pressure sensor.
4. A blade quick change apparatus for a floor grinding machine in accordance with claim 3 wherein: the fluorescent screen is installed to the bottom of first draw-in groove, the last surface mounting of fluorescent screen has the lug, the lug is located pressure sensor under.
5. A blade quick change apparatus for a floor grinding machine in accordance with claim 3 wherein: the expansion plate is located directly over the cavity, the width sum of expansion plate and connecting rod should be the same with the diameter of cavity, the expansion plate stretches out the back and fixes the connecting rod at the cavity and avoids its horizontal slip, the length of stopper pole should make it can not follow the through-hole in the slip.
6. A blade quick change apparatus for a floor grinding machine in accordance with claim 1 wherein: current detector is installed at the top of organism, current detector and motor electric connection, the last surface mounting of organism has the support frame, the rudder is installed at the top of support frame, jack and jack are located the rear of annular plate are installed to the bottom of organism.
7. A blade quick change device for a floor grinding machine according to any one of claims 1-6, characterized in that: the use steps are as follows:
a: after the grinding block at the bottom of the grinding sheet is ground for a long time, the friction force is reduced to influence the grinding effect, the working power of the motor is changed at the moment, the current detector detects the current change to determine that the grinding sheet needs to be replaced, the electric push rod and the telescopic plate on the fixed column are controlled to be retracted, the connecting rod loses the extrusion force of the second pressing plate and the telescopic plate on the connecting rod, the plug rod is ejected out of the groove by a reset spring in the groove, the machine body is jacked up by starting the jack, and the fixed column is separated from the grinding sheet;
b: after the step A is finished, taking out the worn abrasive disc, placing a new abrasive disc under the annular plate, controlling the contraction speed of the jack, slowly descending the machine body, inserting the fixed column into the installation cavity of the abrasive disc, when the bottom of the annular plate moves to the position above the abrasive disc, enabling the photosensitive detector to conveniently measure the position of the fluorescent plate due to dark light inside the annular plate, starting the motor to drive the driving roller to rotate, driving the driving roller to drive the driving roller to rotate through the transmission mechanism, driving the fixed column to rotate through the driving roller, enabling the photosensitive detector to rotate to the position above the fluorescent plate to receive an optical signal, and stopping the motor to rotate to enable the clamping block to be located right above the first clamping groove;
c: accomplish after the B step, the control organism continues to descend, after the fixture block got into first draw-in groove completely, lug trigger pressure sensor, make the electric push rod stretch out the fixed column and extrude first clamp plate, rotation through the pivot makes the second clamp plate press to the connecting rod, the expansion plate stretches out downwards simultaneously and gets into the cavity, second clamp plate and expansion plate mutually support and extrude fixedly to the connecting rod, avoid the connecting rod horizontal slip in the cavity, the fixed in-process of connecting rod, the cock stem passes inside the through-hole gets into the recess, and extrude reset spring, the cock stem is used for avoiding taking place to rotate between abrasive disc and fixed post, fixture block and electric push rod are located first draw-in groove and second draw-in groove respectively, avoid sliding from top to bottom between abrasive disc and fixed post, the abrasive disc is changed and is accomplished.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110579931.1A CN113146394B (en) | 2021-05-26 | 2021-05-26 | Grinding disc quick replacement device for ground grinding machine |
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| CN202110579931.1A CN113146394B (en) | 2021-05-26 | 2021-05-26 | Grinding disc quick replacement device for ground grinding machine |
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| CN113146394B CN113146394B (en) | 2023-07-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116619243A (en) * | 2023-07-18 | 2023-08-22 | 江苏创响智能科技有限公司 | Fastening device for cutting and polishing disc of numerical control machine tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116619243A (en) * | 2023-07-18 | 2023-08-22 | 江苏创响智能科技有限公司 | Fastening device for cutting and polishing disc of numerical control machine tool |
| CN116619243B (en) * | 2023-07-18 | 2023-09-22 | 江苏创响智能科技有限公司 | Fastening device for cutting and polishing disc of numerical control machine tool |
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| CN113146394B (en) | 2023-07-18 |
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