CN111673570B

CN111673570B - Metal desktop polishing device and using method thereof

Info

Publication number: CN111673570B
Application number: CN202010769557.7A
Authority: CN
Inventors: 林东瑛; 周广超; 檀柱强; 王斌全; 欧静; 张丽枫
Original assignee: Zhaoyuan Dongwei Metal Craft Furniture Co ltd
Current assignee: Zhaoyuan Dongwei Metal Craft Furniture Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-03-23
Anticipated expiration: 2040-08-04
Also published as: CN113084635A; CN113084635B; CN111673570A

Abstract

The invention relates to a metal desktop grinding device and a using method thereof, and the metal desktop grinding device comprises a support, wherein a plane grinding device and a side grinding device are arranged on the support in a sliding manner, a desktop fixing device is arranged below the plane grinding device and the side grinding device, the desktop fixing device comprises a driving motor, the driving motor is connected with a speed reducer, an output shaft of the speed reducer is connected with a speed reducing device, an output shaft of the speed reducing device is connected with a turntable, a desktop to be ground is placed on the turntable, the desktop and the side of the desktop are respectively ground by using the plane grinding device and the side grinding device, and when the turntable needs to stop rotating after grinding is finished, the speed reducing device on the desktop fixing device is started to stop rotating the turntable quickly, so that the waiting time is shortened.

Description

Metal desktop polishing device and using method thereof

Technical Field

The invention belongs to the field of furniture polishing, and particularly relates to a metal desktop polishing device and a use method thereof.

Background

The processing mode of aluminium system furniture is including the mode of casting and aluminium alloy processing part reassembly, if adopt cast mode, need polish desktop and desktop border after the casting, when polishing the desktop at present, is fixed in the roating seat with the desktop on, adopts the plane to polish and the side mode of going on simultaneously to polish the desktop. Because when actually polishing, need debug the equipment of polishing, perhaps need dismantle the desktop that will polish and get off and change, because the roating seat is rotatory by the engine drive, after the engine stops rotatory, the roating seat still can continue rotatory a period because inertia, until stopping, and equipment in the rotation can not operate, so when debugging or change treat the product of polishing, still need carry out the wait of certain time after shutting down, can break the continuation of work, lead to work efficiency to descend.

Disclosure of Invention

The invention provides a metal desktop polishing device, which aims to solve the technical problems that after a turntable for fixing a polishing product is stopped in a high-speed rotating mode, the continuity of work is interrupted and the work efficiency is reduced due to the fact that inertia continues to rotate, and achieves the technical effects of reducing the speed of the turntable rapidly, reducing waiting time and improving the work efficiency.

The specific technical scheme of the invention is as follows:

a metal desktop grinding device comprises a support, wherein a plane grinding device and a side grinding device are arranged on the support in a sliding mode, a desktop fixing device is arranged below the plane grinding device and the side grinding device and comprises a driving motor, the driving motor is connected with a speed reducer, an output shaft of the speed reducer is connected with a speed reducing device, and the speed reducing device is connected with a rotary table; the retarding device comprises a transmission cavity, a retarding cavity and a connecting shaft, wherein the transmission cavity is connected with the retarding cavity, the connecting shaft penetrates through the transmission cavity and the retarding cavity, the connecting shaft is also provided with an electric clutch, and the connecting shaft is connected with the transmission cavity through the electric clutch; one end of the connecting shaft is connected with an output shaft of the speed reducer, and the other end of the connecting shaft is connected with the rotary table.

Furthermore, a driving wheel is arranged in the transmission cavity, the driving wheel is connected with a plurality of driven wheels in a meshing manner, and the driving wheel is connected with the electric clutch; the transmission chamber is connected with the speed reducing chamber, be provided with a plurality of fan-shaped fixed parts in the speed reducing chamber, the fixed part will speed reducing chamber partition is for a plurality of cavities, is provided with hydraulic oil in the cavity, be provided with first passageway on the fixed part, the inside damping adjustment piece that is provided with of first passageway, the damping adjustment piece is connected with adjusting device, the speed reducing intracavity is still articulated to be provided with a plurality of swing portions, the fixed part with the swing portion interval sets up, the symmetry is provided with first eccentric wheel and second eccentric wheel in the swing portion, first eccentric wheel and second eccentric wheel equally divide do not with be connected from the driving wheel, the phase angle of first eccentric wheel and second eccentric wheel differs 180 degrees.

Furthermore, the retarding cavity is of an annular structure, and the connecting shaft penetrates through the middle of the annular structure; the fixed part is also provided with a second channel.

Furthermore, the swinging portion can swing around the center of the retarding cavity, two grooves are formed in the end face of the swinging portion and are symmetrically arranged, sliding sleeves are fixedly arranged in the grooves, sliding blocks are arranged in the sliding sleeves in a sliding mode, and the first eccentric wheel and the second eccentric wheel are arranged in the sliding sleeves respectively.

Further, the sliding sleeve is of a U-shaped structure, a sliding rail is arranged on the inner side wall of the U-shaped structure, and a sliding groove is formed in the sliding block.

The damping adjusting device comprises an adjusting cavity, the adjusting cavity is internally provided with an adjusting device, the adjusting device comprises a driving device, the driving device is arranged in the adjusting cavity, an output shaft of the driving device is connected with a driving wheel, the driving wheel is meshed and connected with a driving wheel, and the driving wheel is connected with the damping adjusting sheet.

Further, the support comprises side supports which are symmetrically arranged, two cross beams are arranged between the side supports in parallel, first slide rails are arranged on the cross beams, a first screw rod and a driving device for driving the first screw rod to rotate are further arranged between the two cross beams, a side grinding device driving screw rod is further arranged, and the first slide rails, the first screw rod and the side grinding device driving screw rod are parallel to the cross beams.

Further, the plane grinding device comprises a first moving plate, the first moving plate is connected with the cross beam in a sliding mode, second sliding rails are arranged on the first moving plate at intervals in parallel, a second screw rod is further fixedly arranged on the first moving plate, and the second screw rod can rotate around a connection point of the second moving plate and the first moving plate; the first movable plate is provided with a second movable plate in a sliding mode, the second movable plate is connected with the second sliding rail in a sliding mode, the second movable plate is connected with the second screw rod in a threaded mode, the second movable plate is provided with a first driving device and a plane grinding head, and the first driving device is used for driving the plane grinding head to rotate.

Further, the side grinding device comprises a third moving plate, the third moving plate is connected with the cross beam in a sliding mode, a sliding rail is arranged on the third moving plate in parallel, a fixed block is further arranged on the third moving plate, a third lead screw is connected to the fixed block in a threaded mode, a fourth moving plate is fixedly connected to the lower end of the third lead screw, a first sliding rod and a second sliding rod are arranged on the fourth moving plate in parallel, sliding plates are arranged on the first sliding rod and the second sliding rod in a sliding mode, a second driving device and a side grinding head are arranged on the sliding plates in a sliding mode, and the second driving device is used for driving the side grinding head to rotate.

A use method of a metal desktop grinding device comprises the following steps:

installing a tabletop to be polished on the turntable, fixing, adjusting the horizontal position of the plane grinding device through a first screw rod, adjusting the upper and lower positions of the plane grinding head through a second screw rod, and adjusting the plane grinding head to a proper processing position; a third moving plate of the side grinding device moves on a beam to adjust the horizontal position of the side grinding device, a third screw rod is used for adjusting the upper and lower positions of a side grinding head to enable the side grinding head to be in contact with the side of a table top to be ground, then a first driving device is started to drive a plane grinding head to rotate, a second driving device is started to drive the side grinding head to rotate, an electric clutch of a speed reducing device is loosened, a transmission shaft is not in contact with a driving wheel, and a speed reducer does not work; starting a driving motor of the desktop fixing device, driving the turntable to rotate, further driving the desktop to be polished to rotate, polishing the desktop by using the plane grinding head, polishing the side surface by using the side grinding head, wherein in the polishing process, the plane grinding head can also horizontally move to polish the whole desktop;

when the grinding is finished, the electric clutch is electrified to lock the transmission shaft and the driving wheel, the transmission shaft rotates to drive the driving wheel to rotate, the driving wheel drives the two driven wheels to simultaneously rotate in the same direction, the two driven wheels drive the first eccentric wheel and the second eccentric wheel to rotate, the swinging part swings to squeeze hydraulic oil on two sides of the fixed part into one side with the increased volume of the cavity from one side with the decreased volume of the cavity, the hydraulic oil flows through the first channel and the second channel under the thrust action of the swinging part to generate damping force, the damping force is reacted on the swinging part to generate resistance to the swinging of the swinging part so as to generate resistance to the rotation of the first eccentric wheel and the second eccentric wheel, the first eccentric wheel and the second eccentric wheel transmit the resistance to the corresponding driven wheels, and finally the driving wheel generates resistance to the rotation of the connecting shaft to reduce the rotation speed of the output shaft of the speed reducer, rapidly stopping the inertial rotation of the turntable;

when the damping size needs to be adjusted according to actual use, the driving device is started to drive the driving wheel to rotate, the driving wheel drives the damping adjusting sheet to rotate, and then the flow cross-sectional area of the first channel is increased or reduced; when the damping needs to be increased, the flow cross-sectional area is reduced, otherwise, when the damping needs to be reduced, the flow cross-sectional area is increased.

The embodiment of the invention has at least the following beneficial effects:

1. the invention comprises the technical proposal that a plane grinding device and a side edge grinding device are arranged on a bracket in a sliding way, a desktop fixing device is arranged below the plane grinding device and the side edge grinding device, the desktop fixing device comprises a driving motor, the driving motor is connected with a speed reducer, an output shaft of the speed reducer is connected with a speed retarding device, the speed retarding device is connected with a turntable, and the speed retarding device comprises a connecting shaft which penetrates through a transmission cavity and a speed retarding cavity, the connecting shaft is connected with a driving wheel through an electric clutch, one end of the connecting shaft is connected with the output shaft of the speed reducer, the other end of the connecting shaft is connected with the turntable, and the like, the speed retarding device is connected between the output shaft of the speed reducer and the turntable, so that the problem that the turntable continues to rotate at high speed after the polishing, the technical problem of work efficiency is reduced to realize reducing carousel speed fast, reduce latency, promote work efficiency's technological effect.

2. The technical proposal of the invention comprises that the retarding device comprises a transmission cavity, a driving wheel and a plurality of driven wheels are arranged in the transmission cavity, the transmission cavity is connected with a retarding cavity, the retarding cavity is provided with a plurality of fan-shaped fixed parts and swing parts which are arranged at intervals with the fixed parts, hydraulic oil is also arranged in the retarding cavity and can be circulated through a first channel on the fixed parts, eccentric wheels are arranged in the swinging part, the eccentric wheels are connected with the driven wheel, the phase angle difference between the two eccentric wheels is 180 degrees, and the like, the eccentric wheel of the swinging part can be driven to rotate by the transmission cavity, so that the swinging part swings to extrude hydraulic oil to flow from the first channel of the fixing part, the damping sheet is also arranged in the first channel, the damping that hydraulic oil flowed through can be adjusted, and then produce damping force to the transmission shaft, realize utilizing hydraulic resistance auxiliary brake technical effect.

3. The technical scheme includes that the damping adjusting sheet is arranged in the first channel and connected with the adjusting device, the flow cross-sectional area in the first channel is adjusted through the damping sheet, so that the damping force of the speed reducing device is adjusted according to actual requirements, the corresponding damping effect is matched for different requirements, and the damping adjusting device is simple in structure and easy to operate.

4. The technical scheme of the invention comprises the technical scheme that the fixing part is also provided with the second channel which is in a full circulation state, and the locking phenomenon generated after the damping sheet completely blocks the first channel is prevented through the arrangement of the second channel.

Drawings

FIG. 1 is a schematic view of the overall structure of a polishing device;

FIG. 2 is a schematic view of a desktop fixing device;

FIG. 3 is a schematic view of a flat grinding apparatus;

FIG. 4 is a schematic view of a side grinding apparatus;

FIG. 5 is a front view of the retarder;

FIG. 6 is a side view of the retarder;

FIG. 7 is a schematic view of the transmission of FIG. 5 taken in the direction A;

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 7;

FIG. 9 is an enlarged schematic view at C of FIG. 6;

FIG. 10 is a schematic view of the swing portion;

FIG. 11 is a schematic structural view of the sliding sleeve;

FIG. 12 is a schematic view of the engagement of the slider and the eccentric;

in the figure:

100-bracket, 110-side bracket, 120-beam, 130-first slide rail, 140-first screw rod, 200-plane grinding device, 210-first moving plate, 220-second moving plate, 230-second slide rail, 240-second screw rod, 250-first driving device and 260-plane grinding head; 300-a side grinding device, 310-a third moving plate, 320-a fourth moving plate, 321-a first slide bar, 322-a second slide bar, 330-a third screw rod, 340-a sliding plate, 350-a connecting plate, 360-a side grinding head, 370-a second driving device and 380-an elastic piece; 400-a desktop fixing device, 410-a speed reducer, 420-a supporting plate, 430-a rotating disc and 440-a supporting frame; 500-a retarding device, 510-a transmission cavity, 511-a transmission cavity, 512-a first driven wheel, 513-a driving wheel, 514-a second driven wheel and 515-an electric clutch; 520-a retarding cavity, 521-a retarding cavity, 522-a fixing part, 5221-a first channel, 5222-a second channel and 5223-a damping adjusting sheet; 523-a swinging part, 5231-a sliding sleeve, 5232-a sliding block, 5233-a first eccentric wheel and 5234-a second eccentric wheel; 530-an adjusting cavity, 531-an adjusting cavity and 532-a mounting end part; 540-connecting shaft, 550-adjusting device, 551-driving device, 552-driving wheel and 553-driving wheel; 600-tabletop to be processed.

Detailed Description

The technical scheme of the invention is described in detail in the following with reference to the accompanying drawings and embodiments:

the invention relates to a metal desktop grinding device, as shown in fig. 1, the metal desktop grinding device comprises a support 100, the support 100 comprises side supports 110 which are symmetrically arranged, two cross beams 120 are arranged between the side supports 110 in parallel, first slide rails 130 are fixedly arranged on the two cross beams 120, a first screw rod 140 and a driving device for driving the first screw rod 140 to rotate are arranged between the two cross beams 120, a side grinding device 300 driving screw rod and a motor for driving the side grinding device 300 driving screw rod to rotate are arranged on the support 100, and the first slide rails 130, the first screw rod 140 and the side grinding device 300 driving screw rod (not shown in the figure) are all parallel to the cross beams 120.

The support 100 is provided with a plane grinding device 200 and a side grinding device 300 in a sliding manner, as shown in fig. 1 and 3, the plane grinding device 200 includes a first moving plate 210, the first moving plate 210 is in threaded connection with a first lead screw 140, the first moving plate 210 is in sliding connection with a first slide rail 130 on the cross beam 120, and the first lead screw 140 can drive the first moving plate 210 to move along the first slide rail 130. The first moving plate 210 is provided with second sliding rails 230 at intervals, the first moving plate 210 is further fixedly provided with a second screw 240, the second screw 240 can rotate around a connection point with the first moving plate 210, one end of the second screw 240 is connected with a driving device, and the driving device can be a motor and is used for driving the second screw 240 to rotate. The first moving plate 210 is provided with a second moving plate 220 in a sliding manner, the second moving plate 220 is connected with the second sliding rail 230 in a sliding manner, the second moving plate 220 is connected with the second screw rod 240 in a threaded manner, the second moving plate 220 is provided with a first driving device 250 and a planar grinding head 260, the planar grinding head 260 can be fixed in a bearing seat through two ends of a central shaft, the bearing seat is fixed on the second moving plate 220 to be connected, the first driving device 250 is used for driving the planar grinding head 260 to rotate, and the connection mode can be that an output shaft of the first driving device 250 is connected with the central shaft of the planar grinding head 260 through belt transmission.

As shown in fig. 1 and 4, the side grinding device 300 includes a third moving plate 310, the third moving plate 310 is slidably connected to the cross beam 120, slide rails are arranged in parallel in the vertical direction of the third moving plate 310, a fixing block is further fixedly arranged on the third moving plate 310, a third screw rod is connected to the fixing block through a thread, a fourth moving plate 320 is fixedly connected to the lower end of the third screw rod, a manual wheel is connected to the upper end of the third screw rod, and the third screw rod can be driven to rotate by the manual wheel. A first sliding rod 321 and a second sliding rod 322 are arranged in parallel on the fourth moving plate 320 in the horizontal direction, a sliding plate 340 is sleeved on the first sliding rod 321 and the second sliding rod 322 in a sliding manner, a connecting plate 350 is fixedly arranged on the sliding plate 340, a second driving device 370 is fixedly arranged on one side of the connecting plate 350, a side grinding head 360 is fixedly arranged on the other side of the connecting plate 350, the side grinding head 360 can rotate around a central shaft, the second driving device 370 is used for driving the side grinding head 360 to rotate, and the output shaft of the second driving device 370 can be connected with the central shaft of the side grinding head 360 through belt transmission. An elastic member 380 is connected to the outer side of the sliding plate 340, the other end of the elastic member 380 is fixed to the fourth moving plate 320, and the elastic member 380 can apply a lateral force to the fourth moving plate 320 to ensure that the side grinding head 360 is always abutted against the side of the table top during grinding.

As shown in fig. 1 and 2, a table top fixing device 400 is disposed below the plane grinding device 200 and the side grinding device 300, the table top fixing device 400 includes a driving motor (not shown), the driving motor is connected to a speed reducer 410, an output shaft of the speed reducer 410 is connected to a speed reducing device 500, the speed reducing device 500 is fixed in position by a support frame 440, and the support frame 440 is fixedly mounted on the ground; the center shaft of the retarder 500 is connected with a support plate 420, the support plate 420 is fixedly provided with a rotating disc 430, the support plate 420 is also supported by a support part (not shown) fixed with the ground, and the support plate 420 can rotate around the support part.

The speed reducing device 500, as shown in fig. 5 and 6, includes a transmission chamber 510, a driving wheel 513 is disposed in the transmission chamber 510, the driving wheel 513 is connected with a plurality of driven wheels in a meshing manner, in this embodiment, two driven wheels are taken as an example for explanation, that is, the driving wheel 513 is connected with a first driven wheel 512 and a second driven wheel 514 in a meshing manner, the first driven wheel 512 and the second driven wheel 514 are installed in the transmission chamber 511 through bearings and are driven to rotate by the driving wheel 513, and the first driven wheel 512 and the second driven wheel 514 are both connected with output shafts.

The rear end of transmission chamber 510 is connected with retards chamber 520, as shown in fig. 7, retards chamber 520 includes retards cavity 521, and with retards cavity 521 sealing connection's both ends face, retards cavity 521 is an annular part, the interval is provided with a plurality of fixed parts 522 in retards cavity 521, and this embodiment uses two fixed parts 522 as an example, fixed part 522 is fan-shaped, fixed part 522 fan-shaped outside arc surface with retards cavity 521's inside wall contacts, will retard cavity 521 annular space separate for a plurality of cavities, the cavity internal seal has hydraulic oil, retards cavity 521 still is connected with the fluid infusion hydro-cylinder for the cavity fluid infusion.

As shown in fig. 7 and 8, a first passage 5221 is formed through the fixing portion 522 so that the hydraulic oil on both sides of the fixing portion 522 can flow through the first passage 5221. The damping adjusting piece 5223 is arranged inside the first passage 5221, as shown in fig. 6 and 9, the damping adjusting piece 5223 is connected with an adjusting device 550, the adjusting device 550 is used for adjusting the angle of the damping adjusting piece 5223, when the angle of the damping adjusting piece 5223 is changed, the flow cross-sectional area of the first passage 5221 is different, and the damping force generated when hydraulic oil flows through the first passage 5221 is different. The adjusting device 550 comprises a driving device 551, an output shaft of the driving device 551 is connected with a transmission wheel 552, the transmission wheel 552 is in meshing connection with a driving wheel 553, and the driving wheel 553 is connected with the damping adjusting sheet 5223.

Preferably, the fixing portion 522 is further provided with a second passage 5222, and the second passage 5222 is in a completely flowing state, and is provided so as to prevent occurrence of a lock phenomenon after the first passage 5221 is completely blocked.

As shown in fig. 7, a swing portion 523 is further hinged in the speed reducing cavity 521, and in this embodiment, one swing portion 523 is taken as an example, the fixing portion 522 and the swing portion 523 are arranged at an interval, and an outer end surface of the swing portion 523 is arc-shaped and contacts with an inner side surface of the speed reducing cavity 521.

As shown in fig. 5, 7 and 10, a groove is formed in a side end of the swinging portion 523, a sliding sleeve 5231 is fixedly arranged in the groove, the sliding sleeve 5231 is in a U-shaped structure as shown in fig. 11, a sliding rail is arranged on an inner side of a plane wall of the sliding sleeve, a sliding block 5232 is arranged in the sliding sleeve 5231 in a sliding manner, and as shown in fig. 11, a sliding groove is formed in the sliding block 5232 and is matched with the sliding rail, so that the sliding sleeve 5231 is slidably connected with the sliding block 5232. As shown in fig. 5, the eccentric wheels are rotatably disposed in the two sliding sleeves 5231, which are respectively a first eccentric wheel 5233 and a second eccentric wheel 5234, the first eccentric wheel 5233 is connected with the output shaft of the first driven wheel 512, the second eccentric wheel 5234 is connected with the output shaft of the second driven wheel 514, the phase angle of the first eccentric wheel 5233 is 180 degrees different from that of the first driven wheel 512, when the first eccentric wheel 5233 is rotated with the first driven wheel 512, the swinging portion 523 can be driven to rotate around the center position of the slow speed cavity 521, hydraulic oil in a cavity partitioned by the swinging portion 523 and the fixing portion 522 flows from the side where the cavity space is reduced to the side where the cavity space is increased through the first channel 5221 of the fixing portion due to swinging extrusion of the swinging portion 523, so as to generate a damping force, and the damping adjusting piece 5223 can be adjusted by an angle, controlling the flow cross section of the first passage 5221.

The retarder 500 further comprises a connecting shaft 540, the connecting shaft 540 penetrates through the middle portions of the transmission cavity 510 and the retarder 520, and two ends of the connecting shaft 540 are connected with an output shaft of the speed reducer and the turntable respectively, so that the retarder is connected into a transmission system of the turntable. The connecting shaft 540 is connected with an electric clutch 515, the connecting shaft 540 is connected with the driving wheel 513 through the electric clutch 515, and the connection or disconnection between the connecting shaft 540 and the driving wheel 513 is controlled by the electric clutch 515.

The speed reducing device 500 further includes an adjusting cavity 530, the adjusting cavity 530 includes an adjusting cavity 531, an end of the adjusting cavity 531 is connected to an installation end 532, the adjusting cavity 530 is used for installing the adjusting device 550 and plays a role of protecting the adjusting device 550, the driving device 551 may be a motor, the motor is fixedly disposed in the adjusting cavity 531 through a motor fixing seat, the driving wheel 552 and the driving wheel 553 are both connected in the adjusting cavity 531 through a rotating shaft, the driving wheel 553 is connected with the damping adjusting piece 5223, and a shaft connected with the driving wheel 553 penetrates through a rear side portion of the fixing portion 522, as shown in fig. 9.

The technical scheme of the invention also comprises a control system, wherein the control system is connected with the first driving device 250, the second driving device 370, the driving device 551, the driving motor of the desktop fixing device, the driving motor of each screw rod, the electric clutch 515 and the like, and is used for controlling the starting and stopping of the above components.

The working principle is as follows: installing a tabletop 600 to be processed on the turntable, fixing, then adjusting the horizontal position of the plane grinding device through a first lead screw 140, then adjusting the up-down position of the plane grinding head 260 through a second lead screw 240, adjusting the plane grinding head 260 to a proper processing position, similarly, moving a third moving plate 310 of the side grinding device 300 on a beam 120 to adjust the horizontal position of the side grinding device 300, adjusting the up-down position of a side grinding head 360 through a third lead screw 330 to make the side grinding head contact with the side of the tabletop to be polished, then starting a first driving device to drive the plane grinding head 260 to rotate, starting a second driving device 370 to drive the side grinding head 360 to rotate, and loosening an electric clutch 515 of a speed slowing device, wherein the transmission shaft 540 does not contact with a driving wheel 513, and the speed slowing device 500 does not play a speed slowing role; starting a driving motor of the desktop fixing device 400, driving the turntable 430 to rotate, further driving the desktop 600 to be processed to rotate, polishing the desktop by using the plane grinding head 260, and polishing the side surface by using the side grinding head 360, wherein in the polishing process, the plane grinding head 260 can also horizontally move to perform the whole polishing of the desktop;

when the grinding is completed, the electric clutch 515 is powered on to lock the transmission shaft 540 and the driving wheel 513, the transmission shaft 540 rotates to drive the driving wheel 513 to rotate, the driving wheel 513 drives the first driven wheel 512 and the second driven wheel 514 to simultaneously rotate in the same direction, the first driven wheel 512 and the second driven wheel 514 respectively drive the first eccentric wheel 5233 and the second eccentric wheel 5234 to rotate, the first eccentric wheel 5233 and the second eccentric wheel 5234 have a phase angle difference of 180 degrees, the eccentric wheels are connected with the sliding sleeve 5231 through the sliding block 5232, the sliding sleeve 5231 is fixed in the swinging part 523, so the swinging part 523 swings along with the rotation of the first eccentric wheel 5233 and the second eccentric wheel 5234, hydraulic oil on two sides of the fixed part is squeezed into the side with the increased volume of the chamber from the side with the decreased volume of the chamber, and the hydraulic oil flows through the first channel 5221 and the second channel 5222 under the thrust of the swinging part 523, a damping force is generated, the damping force reacts with the swinging part 523, resistance is generated on the swinging of the swinging part 523, and further resistance is generated on the rotation of the first eccentric wheel 5233 and the second eccentric wheel 5234, the first eccentric wheel 5233 and the second eccentric wheel 5234 transmit the resistance to the first driven wheel 512 and the second driven wheel 514, finally, resistance is generated on the rotation of the connecting shaft 540 through the driving wheel 513, the rotating speed of the output shaft of the speed reducer is reduced, the auxiliary speed slowing effect is achieved, and the inertial rotation of the rotating disc 430 is quickly stopped;

when the damping magnitude needs to be adjusted according to the actual situation, the driving device 551 is started to drive the transmission wheel 552 to rotate, and further drive the driving wheel 553 to rotate, because the driving wheel 553 is connected with the damping adjusting sheet 5223, when the driving wheel 553 rotates, the damping adjusting sheet 5223 can be driven to rotate for a certain angle, and further the flow cross-sectional area of the first channel 5221 is increased or reduced; when the damping needs to be increased, the flow cross-sectional area is reduced, and conversely, the flow cross-sectional area is increased.

The words of front, back, left, right, up and down, etc. in the present invention are only for convenience of describing the structure and do not form a limitation on the technical solution. While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a metal desktop grinding device which characterized in that: the table top fixing device comprises a driving motor, the driving motor is connected with a speed reducer, an output shaft of the speed reducer is connected with a speed reducing device, and the speed reducing device is connected with a turntable;

the retarding device comprises a transmission cavity, a retarding cavity and a connecting shaft, wherein the transmission cavity is connected with the retarding cavity, the connecting shaft penetrates through the transmission cavity and the retarding cavity, the connecting shaft is also provided with an electric clutch, and the connecting shaft is connected with the transmission cavity through the electric clutch; one end of the connecting shaft is connected with an output shaft of the speed reducer, and the other end of the connecting shaft is connected with the rotary table;

a driving wheel is arranged in the transmission cavity, the driving wheel is connected with a plurality of driven wheels in a meshed manner, and the driving wheel is connected with the electric clutch; be provided with a plurality of fan-shaped fixed parts in the speed reducing chamber, the fixed part will the speed reducing chamber is separated for a plurality of cavities, is provided with hydraulic oil in the cavity, be provided with first passageway on the fixed part, the inside damping adjustment piece that is provided with of first passageway, the damping adjustment piece is connected with adjusting device, the speed reducing intracavity is still articulated to be provided with a plurality of swing portions, the fixed part with the swing portion interval sets up, the symmetry is provided with first eccentric wheel and second eccentric wheel in the swing portion, first eccentric wheel and second eccentric wheel equally divide do not with be connected from the driving wheel, the phase angle difference 180 degrees of first eccentric wheel and second eccentric wheel.

2. The metal desktop sanding device of claim 1, wherein the speed reducing chamber is of an annular structure, and the connecting shaft penetrates through the middle position of the annular structure; the fixed part is also provided with a second channel.

3. A metal desktop grinding device as claimed in claim 1 or 2, wherein the swinging portion is capable of swinging around the center of the speed-reducing chamber, two grooves are formed on the end surface of the swinging portion, the two grooves are symmetrically arranged, a sliding sleeve is fixedly arranged in each groove, a sliding block is slidably arranged in each sliding sleeve, and the first eccentric wheel and the second eccentric wheel are respectively arranged in the sliding sleeves.

4. A metal desktop sanding device as defined in claim 3, wherein the sliding sleeve is of a U-shaped configuration, the inner side wall of the U-shaped configuration being provided with a sliding track, and the sliding block being provided with a sliding groove.

5. A metal tabletop polishing device as defined in claim 3, further comprising an adjustment chamber, wherein the adjustment device is disposed in the adjustment chamber, the adjustment device comprises a driving device disposed in the adjustment chamber, an output shaft of the driving device is connected with a driving wheel, the driving wheel is engaged with a driving wheel, and the driving wheel is connected with the damping adjustment sheet.

6. The metal desktop grinding device of claim 1, wherein the support comprises symmetrically arranged side supports, two beams are arranged between the side supports in parallel, a first slide rail is arranged on each beam, a first lead screw and a driving device for driving the first lead screw to rotate are arranged between the two beams, a side grinding device driving lead screw is arranged on the support, and the first slide rail, the first lead screw and the side grinding device driving lead screw are all parallel to the beams.

7. The metal desktop grinding device of claim 6, wherein the plane grinding device comprises a first moving plate, the first moving plate is slidably connected with the cross beam, second sliding rails are arranged on the first moving plate at intervals in parallel, and a second screw rod is fixedly arranged on the first moving plate and can rotate around a connection point with the first moving plate; the first movable plate is provided with a second movable plate in a sliding mode, the second movable plate is connected with the second sliding rail in a sliding mode, the second movable plate is connected with the second screw rod in a threaded mode, the second movable plate is provided with a first driving device and a plane grinding head, and the first driving device is used for driving the plane grinding head to rotate.

8. The metal tabletop polishing device as claimed in claim 7, wherein the side grinding device comprises a third moving plate slidably connected to the cross beam, a slide rail is disposed on the third moving plate in parallel, a fixed block is further disposed on the third moving plate, a third screw rod is threadedly connected to the fixed block, a fourth moving plate is fixedly connected to a lower end of the third screw rod, a first slide bar and a second slide bar are disposed on the fourth moving plate in parallel, a sliding plate is slidably disposed on the first slide bar and the second slide bar, a second driving device and a side grinding head are disposed on the sliding plate, and the second driving device is configured to drive the side grinding head to rotate.

9. The use method of the metal desktop grinding device is characterized by comprising the following steps:

the method comprises the following steps of mounting a tabletop to be polished on a turntable, fixing the tabletop, adjusting the horizontal position of a plane grinding device through a first screw rod, adjusting the upper and lower positions of a plane grinding head through a second screw rod, and adjusting the plane grinding head to a proper processing position; a third moving plate of the side grinding device moves on a beam to adjust the horizontal position of the side grinding device, a third screw rod is used for adjusting the upper and lower positions of a side grinding head to enable the side grinding head to be in contact with the side of a table top to be ground, then a first driving device is started to drive a plane grinding head to rotate, a second driving device is started to drive the side grinding head to rotate, an electric clutch of a speed reducing device is loosened, a transmission shaft is not in contact with a driving wheel, and a speed reducer does not work; starting a driving motor of the desktop fixing device, driving the turntable to rotate, further driving the desktop to be polished to rotate, polishing the upper end surface of the desktop by using the plane grinding head, polishing the side edge of the desktop by using the side edge grinding head, wherein the plane grinding head can also horizontally move in the polishing process to completely polish the desktop;

when the grinding is finished, the electric clutch is electrified to lock the transmission shaft and the driving wheel, the transmission shaft rotates to drive the driving wheel to rotate, the driving wheel drives the two driven wheels to simultaneously rotate in the same direction, the two driven wheels drive the first eccentric wheel and the second eccentric wheel to rotate, the swinging part swings to squeeze hydraulic oil on two sides of the fixed part into one side with the increased volume of the cavity from one side with the decreased volume of the cavity, the hydraulic oil flows through the first channel and the second channel under the thrust action of the swinging part to generate damping force, the damping force is reacted on the swinging part to generate resistance to the swinging of the swinging part so as to generate resistance to the rotation of the first eccentric wheel and the second eccentric wheel, the first eccentric wheel and the second eccentric wheel transmit the resistance to the corresponding driven wheels, and finally the driving wheel generates resistance to the rotation of the connecting shaft to reduce the rotation speed of the output shaft of the speed, rapidly stopping the inertial rotation of the turntable;