CN114083403A

CN114083403A - Abrasive belt grinding workbench for cover plate of washing machine

Info

Publication number: CN114083403A
Application number: CN202210058267.0A
Authority: CN
Inventors: 庞建利; 钱立军; 沈维清; 林培毅; 陈健
Original assignee: Hangzhou Goldfish Home Appliances Co ltd
Current assignee: Hangzhou Goldfish Home Appliances Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-02-25
Anticipated expiration: 2042-01-19
Also published as: CN114083403B

Abstract

The invention discloses an abrasive belt grinding workbench for a cover plate of a washing machine, which relates to the technical field of grinding and comprises a workbench, an adjusting table, a grinding component, a tensioning component, a linkage component and a dust removal component, the adjusting table is arranged at the top of the workbench in a sliding manner, the grinding assembly is arranged at the top of the adjusting table, the top of the adjusting platform is also provided with a bracket convenient for installing a polishing component, the linkage component is arranged between the polishing component and the tensioning component, the dust removal component is arranged in the adjusting platform, and the working table of the dust removal component is positioned at the lower side of the grinding wheel, the invention can be suitable for cover plates of washing machines with different sizes, does not need manual adjustment, has stronger practicability, and by the cooperation of the locking piece and the rotating piece, when the grinding wheel is not in contact with the cover plate of the washing machine, it means that no work is required, then locking piece realizes the locking to rotating the piece, avoids appearing the staff maloperation and makes the subassembly of polishing start and influence the condition of staff's safety.

Description

Abrasive belt grinding workbench for cover plate of washing machine

Technical Field

The invention relates to the technical field of grinding, in particular to a grinding workbench for an abrasive belt of a cover plate of a washing machine.

Background

The cover plate of the washing machine comprises a large cover plate and a small cover plate, the two cover plates are generally produced by injection molding of an injection molding machine, the large cover plate and the small cover plate can be produced by the injection molding machine at one time, and the cover plate of the washing machine produced immediately has a water gap and flash, so that the water gap and the flash need to be polished.

The Chinese patent invention with the publication number of CN112428103A in the prior art discloses a washing machine cover plate abrasive belt polishing workbench, which relates to the polishing field and comprises an injection molding mechanical arm and a placing unit, wherein the injection molding mechanical arm is used for grabbing a washing machine cover plate produced by an injection molding machine, and the placing unit is positioned at one side of the injection molding mechanical arm and is used for placing the washing machine cover plate loosened from the injection molding mechanical arm; the robot, fix to grabbing unit and locating at robot one side of terminal of the robot, the grabbing unit is used for grabbing the washing machine cover plate put on placing the unit, and transfer the washing machine cover plate to the processing assembly; the processing assembly comprises a cutting unit and a polishing unit, the cutting unit is used for cutting a water gap of the cover plate of the washing machine, the polishing unit is used for polishing the outer side of the cover plate of the washing machine and the water gap after cutting, and by the device, the manual work is replaced, and the polishing efficiency is greatly improved.

However, the above device has the following problems: 1. the self-adaptive adjustment cannot be carried out: when the device faces a large cover plate and a small cover plate of a washing machine, the grabbing unit and the processing assembly are required to be frequently adjusted to adapt to the large cover plate and the small cover plate of the washing machine so as to finish polishing work, so that the working strength of operators is increased, and if the operators perform misoperation, the polishing effect can be influenced; 2. the safety is low: the device cannot lock the sanding belt in a non-working state, and if the sanding belt is started due to misoperation, the safety of operators can be affected.

Disclosure of Invention

The invention aims to provide a grinding workbench for an abrasive belt of a cover plate of a washing machine, which solves the technical problems that self-adaptive adjustment cannot be realized and the safety is low in the prior art.

The invention provides an abrasive belt grinding workbench for a cover plate of a washing machine, which comprises a workbench, an adjusting platform, a grinding assembly, a tensioning assembly, a linkage assembly and a dust removal assembly, wherein the adjusting platform is arranged at the top of the workbench in a sliding manner, the grinding assembly is arranged at the top of the adjusting platform, a bracket convenient for mounting the grinding assembly is further arranged at the top of the adjusting platform, the grinding assembly comprises a grinding wheel, a driving wheel, an abrasive belt, a grinding motor, a locking piece and a rotating piece, the top of the adjusting platform is further provided with a side plate, the driving wheel is rotatably arranged on the side plate, the grinding motor is fixedly arranged on the adjusting platform, a main shaft of the grinding motor is in transmission connection with the driving wheel through a belt, the rotating piece is rotatably arranged on the bracket, the rotating piece is provided with a sliding column, the rotating piece is provided with an accommodating groove with the same shape as the locking piece, and a pressure sensor is further arranged in the accommodating groove, the locking piece passes through the traveller and rotates a sliding connection, and still is equipped with the spring on the traveller, be equipped with on the support and supply the gliding spout of locking piece, polish wheel and locking piece fixed connection, the tensioning subassembly sets up on the support, the abrasive band cover is established on polishing wheel, action wheel and tensioning subassembly, the linkage subassembly sets up between polishing subassembly and tensioning subassembly, the dust removal subassembly sets up inside the regulation cabinet, and the workstation of dust removal subassembly is located the polishing wheel downside.

Further, the tensioning assembly comprises a tensioning wheel, a sliding block, a tensioning frame and a sliding column, the tensioning frame is fixedly arranged at the top of the support, the tensioning frame is of a hollow structure, the sliding column is fixedly arranged inside the tensioning frame, the sliding block is in sliding connection with the tensioning frame through the sliding column, a spring is further sleeved on the sliding column, one end of the spring is abutted to the sliding block, the other end of the spring is abutted to the top of the inner side of the tensioning frame, and the tensioning wheel is rotatably arranged on the sliding block.

Further, the linkage subassembly includes first linkage board, second linkage board, carrier and linkage gear, first linkage board slides and sets up at the support top, and is equipped with the circular hole of dodging on the first linkage board, the emery wheel of beating passes and dodges hole and locking piece fixed connection, the second linkage board slides and sets up in one side of tensioning frame, and second linkage board and sliding block fixed connection, the carrier is fixed to be set up on the support, just the linkage gear rotates with the carrier to be connected, all be equipped with the rack on first linkage board and the second linkage board, the linkage gear respectively with the rack toothing on first linkage board and the second linkage board.

Furthermore, a hood for protecting the linkage assembly is further arranged on the support.

Furthermore, the dust removal assembly comprises a dust removal bin, a dust collection pipe, a dust collection head and an air suction pipe, the dust removal bin is arranged inside the adjusting table, one end of the dust collection pipe is arranged on one side of the dust removal bin, the dust collection head is arranged at the other end of the dust collection pipe and is located at the bottom of the polishing wheel, the air suction pipe is arranged on the other side of the dust removal bin, the dust collection head, the dust collection pipe, the air suction pipe and the dust removal bin are communicated with each other, and an opening and closing door in movable connection is further arranged on the dust removal bin.

Further, the dust removal assembly further comprises an air suction cover and a fan, the air suction cover is arranged inside the adjusting table, the air suction cover is arranged in a hollow mode, the spindle of the grinding motor is located in the air suction cover, the fan is arranged in the air suction cover, the fan is fixedly connected with the spindle of the grinding motor, the air suction pipe is fixedly connected with the air suction cover and communicated with the air suction cover, and a filter screen is further arranged at the connection position of the air suction pipe and the dust removal bin.

Furthermore, the bottom of the workbench is provided with an adjusting motor, a main shaft of the adjusting motor is fixedly connected with a lead screw, the bottom of the adjusting table is provided with an adjusting block, the adjusting block extends downwards to penetrate through the workbench and then is in threaded connection with the lead screw, and the workbench is provided with a sliding hole for the adjusting block to slide.

Compared with the prior art, the invention has the beneficial effects that:

(1) when the invention works, the adjusting platform and the grinding component move towards the cover plate direction of the washing machine, no matter what the large cover plate and the small cover plate of the washing machine face, the grinding wheel can be driven to move as long as the grinding wheel contacts the cover plate until the locking piece is completely clamped into the accommodating groove of the rotating piece, at the same time, the tensioning component can also work together through the linkage component to keep the tension force of the abrasive belt, when the locking piece is clamped into the rotating piece, the pressure sensor outputs a signal, the grinding motor works to drive the abrasive belt to work through the driving wheel, so that the grinding effect is achieved, meanwhile, the dust removal component works simultaneously to recover the waste scraps after grinding, through the arrangement of the structure, the invention can adapt to the cover plates of the washing machines with different sizes, does not need manual regulation, has stronger practicability, and simultaneously avoids the misoperation of operators in the prior art, so as not to carry out correct data regulation, the grinding effect is further influenced, and the labor intensity of operators is reduced.

(2) According to the invention, through the matching of the locking piece and the rotating piece, when the polishing wheel is not in contact with the cover plate of the washing machine, the locking piece locks the rotating piece without working, so that the condition that the safety of workers is influenced by starting the polishing assembly due to misoperation of the workers is avoided, and a secondary effect of ensuring the safety of the workers is achieved.

(3) According to the invention, the polishing wheel is linked with the movement of the tension force through the linkage assembly, so that the accuracy of the device is ensured, and the error caused by manual operation for adjusting the tension of the abrasive belt is avoided.

(4) According to the invention, the dust removal assembly and the polishing assembly share one power source, so that the energy consumption is saved and the complexity of the device is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present 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 some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a first operating state of the present invention;

FIG. 2 is a schematic structural diagram of a second operating state of the present invention;

FIG. 3 is a schematic perspective view of a sanding assembly according to the present invention;

FIG. 4 is a schematic view of the internal structure of the sanding assembly of the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 4;

FIG. 6 is a cross-sectional view of the tension assembly of the present invention;

FIG. 7 is a schematic perspective view of a linkage assembly according to the present invention;

fig. 8 is a schematic perspective view of the dust removing assembly of the present invention.

Reference numerals:

1. a work table; 2. an adjusting table; 3. polishing the assembly; 31. grinding the wheel; 32. a driving wheel; 33. an abrasive belt; 34. polishing the motor; 35. a locking member; 36. a rotating member; 37. a traveler; 38. accommodating grooves; 39. a pressure sensor; 4. a tension assembly; 41. a tension wheel; 42. a slider; 43. a tension frame; 44. a sliding post; 5. a linkage assembly; 51. a first linkage plate; 52. a second linkage plate; 53. a gear carrier; 54. a linkage gear; 55. avoiding holes; 6. a dust removal assembly; 61. a dust removal bin; 62. a dust collection pipe; 63. a dust collection head; 64. an air intake duct; 65. an air intake cover; 66. a fan; 7. a support; 8. a side plate; 9. a hood; 10. adjusting the motor; 11. a screw rod; 12. and a regulating block.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, an embodiment of the present invention provides a grinding workbench for an abrasive belt of a cover plate of a washing machine, including a workbench 1, an adjusting table 2, a grinding assembly 3, a tensioning assembly 4, a linkage assembly 5 and a dust removal assembly 6, where the adjusting table 2 is slidably disposed on the top of the workbench 1, the grinding assembly 3 is disposed on the top of the adjusting table 2, a bracket 7 for facilitating installation of the grinding assembly 3 is further disposed on the top of the adjusting table 2, the grinding assembly 3 includes a grinding wheel 31, a driving wheel 32, an abrasive belt 33, a grinding motor 34, a locking member 35 and a rotating member 36, the top of the adjusting table 2 is further provided with a side plate 8, the driving wheel 32 is rotatably disposed on the side plate 8, the grinding motor 34 is fixedly disposed on the adjusting table 2, a main shaft of the grinding motor 34 is in transmission connection with the driving wheel 32 through a belt, the rotating member 36 is rotatably disposed on the bracket 7, the rotating part 36 is provided with a sliding column 37, the rotating part 36 is provided with an accommodating groove 38 with the same shape as the locking part 35, the accommodating groove 38 is further provided with a pressure sensor 39, the locking part 35 is connected with the rotating part 36 in a sliding manner through the sliding column 37, the sliding column 37 is further provided with a spring, the support 7 is provided with a sliding groove for the sliding of the locking part 35, the polishing wheel 31 is fixedly connected with the locking part 35, the tensioning component 4 is arranged on the support 7, the abrasive belt 33 is sleeved on the polishing wheel 31, the driving wheel 32 and the tensioning component 4, the linkage component 5 is arranged between the polishing component 3 and the tensioning component 4, the dust removal component 6 is arranged inside the adjusting platform 2, the working platform 1 of the dust removal component 6 is positioned at the lower side of the polishing wheel 31, during working, the adjusting platform 2 and the polishing component 3 move towards the cover plate direction of the washing machine together, no matter what the large cover plate and the small cover plate face each other, as long as the polishing wheel 31 contacts with the cover plate, the polishing wheel 31 is driven to move until the locking piece 35 is completely clamped into the accommodating groove 38 of the rotating piece 36, at the moment, the tensioning component 4 can work together through the linkage component 5 to keep the tensioning force of the abrasive belt 33, after the locking piece 35 is clamped into the rotating piece 36, the pressure sensor 39 outputs a signal, the polishing motor 34 works to drive the abrasive belt 33 to work through the driving wheel 32 to achieve the polishing effect, meanwhile, the dust removal component 6 works simultaneously to recover the polished waste scraps, after the polishing is finished, the adjusting platform 2 drives the polishing component 3 to reset, after the polishing wheel 31 is separated from the contact with the cover plate of the washing machine, the locking piece 35 slides into the sliding groove of the bracket 7 by the elastic force of the spring to complete the resetting after the polishing wheel 31 rotates to the original position, the rotating wheel can be locked at the moment, and the cover plates of the washing machines with different sizes can be adapted through the arrangement of the structure, and need not the manual work and adjust, the practicality is stronger to through locking piece 35 and the cooperation of rotating 36, when the wheel 31 of polishing does not contact with the washing machine apron, mean need not work, then locking piece 35 realizes the locking to rotating 36, avoids appearing the condition that staff's maloperation makes the subassembly 3 of polishing start and influence staff's safety.

Preferably, as shown in fig. 6 below, the tensioning assembly 4 includes a tensioning wheel 41, a sliding block 42, a tensioning frame 43, and a sliding column 44, the tensioning frame 43 is fixedly disposed on the top of the bracket 7, the tensioning frame 43 is of a hollow structure, the sliding column 44 is fixedly disposed inside the tensioning frame 43, the sliding block 42 is disposed inside the tensioning frame 43, and the sliding block 42 is slidably connected to the tensioning frame 43 through the sliding column 44, the sliding column 44 is further sleeved with a spring, one end of the spring abuts against the sliding block 42, the other end of the spring abuts against the top inside of the tensioning frame 43, the tensioning wheel 41 is rotatably disposed on the sliding block 42, when the polishing wheel 31 abuts against the cover plate of the washing machine, the polishing wheel 31 moves a certain distance, and at this time, the tensioning wheel 41 also moves correspondingly through the linkage assembly 5, maintains the tensioning force of the abrasive belt 33, and through the disposed spring, and is also beneficial to providing elasticity for the reset of the polishing wheel 31 and the tension force after polishing.

Preferably, as shown in fig. 7, the linkage assembly 5 includes a first linkage plate 51, a second linkage plate 52, a gear rack 53 and a linkage gear 54, the first linkage plate 51 is slidably disposed on the top of the bracket 7, a circular avoiding hole 55 is disposed on the first linkage plate 51, the polishing wheel 31 passes through the avoiding hole 55 and is fixedly connected to the locking member 35, the second linkage plate 52 is slidably disposed on one side of the tensioning frame 43, the second linkage plate 52 is fixedly connected to the sliding block 42, the gear rack 53 is fixedly disposed on the bracket 7, the linkage gear 54 is rotatably connected to the gear rack 53, the first linkage plate 51 and the second linkage plate 52 are both provided with racks, the linkage gear 54 is respectively engaged with the racks on the first linkage plate 51 and the second linkage plate 52, when the polishing wheel 31 abuts against the cover plate of the washing machine, the polishing wheel 31 moves and drives the first linkage plate 51 to move together, when the first linkage plate 51 moves, the linkage gear 54 is driven to rotate through the rack, the second linkage plate 52 and the sliding block 42 fixedly connected with the second linkage plate 52 are driven to move through the linkage gear 54, the tension wheel 41 is driven to move to adjust the tension of the abrasive belt 33, the polishing wheel 31 is linked with the movement of the tension through the linkage assembly 5, the accuracy of the device is guaranteed, and errors caused when the abrasive belt 33 is adjusted through manual operation are avoided.

Preferably, as shown in fig. 1 below, a hood 9 for protecting the linkage assembly 5 is further disposed on the support 7, so that the influence of the waste scraps generated during the grinding operation on the normal operation of the linkage assembly 5 is avoided.

Preferably, as shown in fig. 8, the dust removing assembly 6 includes a dust removing bin 61, a dust suction pipe 62, a dust suction head 63 and an air suction pipe 64, the dust removing bin 61 is disposed inside the adjusting table 2, one end of the dust suction pipe 62 is disposed on one side of the dust removing bin 61, the dust suction head 63 is disposed on the other end of the dust suction pipe 62, the dust suction head 63 is located at the bottom of the polishing wheel 31, the air suction pipe 64 is disposed on the other side of the dust removing bin 61, the dust suction head 63, the dust suction pipe 62, the air suction pipe 64 and the dust removing bin 61 are communicated with each other, and the dust removing bin 61 is further provided with an opening and closing door movably connected with each other. The dust collecting head 63 and the dust collecting pipe 62 can suck the scraps generated during polishing into the dust collecting bin 61, so as to avoid environmental pollution.

Preferably, as shown in fig. 8, the dust removing assembly 6 further includes an air suction cover 65 and a fan 66, the air suction cover 65 is disposed inside the adjusting table 2, the air suction cover 65 is hollow, the spindle of the grinding motor 34 is disposed in the air suction cover 65, the fan 66 is fixedly connected to the spindle of the grinding motor 34, the air suction pipe 64 is fixedly connected to the air suction cover 65 and is communicated with the air suction cover 65, a filter screen is disposed at a joint of the air suction pipe 64 and the dust removing bin 61, the fan 66 is driven to rotate by the grinding motor 34, so that the dust suction head 63 generates suction force to complete dust removing operation, and the dust suction head and the grinding operation share one power source, thereby saving energy consumption and reducing complexity of the device.

Preferably, it is shown below in combination with fig. 1, 1 bottom of workstation is equipped with adjusting motor 10, fixedly connected with lead screw 11 on adjusting motor 10's the main shaft, 2 bottoms of workstation are equipped with regulating block 12, regulating block 12 downwardly extending runs through behind the workstation 1 and passes through threaded connection with lead screw 11, and is equipped with the gliding slide opening of confession regulating block 12 on the workstation 1, and it is rotatory to drive lead screw 11 through adjusting motor 10 work, and then drives the workstation 2 and remove, and when the washing machine apron of contradicting of wheel 31 of polishing, a piece 36 is rotated to locking piece 35 card income, and pressure sensor 39 can output signal makes adjusting motor 10 stop work, realizes the not washing machine apron of equidimension of adaptation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A grinding workbench of an abrasive belt of a cover plate of a washing machine comprises a workbench (1), an adjusting platform (2) and is characterized by further comprising a grinding assembly (3), a tensioning assembly (4), a linkage assembly (5) and a dust removal assembly (6), wherein the adjusting platform (2) is slidably arranged at the top of the workbench (1), the grinding assembly (3) is arranged at the top of the adjusting platform (2), a support (7) convenient for mounting the grinding assembly (3) is further arranged at the top of the adjusting platform (2), the grinding assembly (3) comprises a grinding wheel (31), a driving wheel (32), an abrasive belt (33), a grinding motor (34), a locking piece (35) and a rotating piece (36), a side plate (8) is further arranged at the top of the adjusting platform (2), the driving wheel (32) is rotatably arranged on the side plate (8), and the grinding motor (34) is fixedly arranged on the adjusting platform (2), and the main shaft of the grinding motor (34) is in transmission connection with the driving wheel (32) through a belt, the rotating part (36) is rotatably arranged on the support (7), the rotating part (36) is provided with a sliding column (37), the rotating part (36) is provided with an accommodating groove (38) with the same shape as the locking part (35), the accommodating groove (38) is further provided with a pressure sensor (39), the locking part (35) is in sliding connection with the rotating part (36) through the sliding column (37), the sliding column (37) is further provided with a spring, the support (7) is provided with a sliding chute for sliding the locking part (35), the grinding wheel (31) is fixedly connected with the locking part (35), the tensioning component (4) is arranged on the support (7), the abrasive belt (33) is sleeved on the grinding wheel (31), the driving wheel (32) and the tensioning component (4), the linkage component (5) is arranged between the grinding component (3) and the tensioning component (4), the dust removal assembly (6) is arranged inside the adjusting platform (2), and the workbench (1) of the dust removal assembly (6) is positioned on the lower side of the grinding wheel (31).

2. The washing machine cover plate belt sanding workbench according to claim 1, wherein the tensioning assembly (4) comprises a tensioning wheel (41), a sliding block (42), a tensioning frame (43) and a sliding column (44), the tensioning frame (43) is fixedly arranged on the top of the bracket (7), the tensioning frame (43) is of a hollow structure, the sliding column (44) is fixedly arranged inside the tensioning frame (43), the sliding block (42) is slidably connected with the tensioning frame (43) through the sliding column (44), the sliding column (44) is further sleeved with a spring, one end of the spring abuts against the tensioning frame (42), the other end of the spring abuts against the inner top of the tensioning frame (43), and the tensioning wheel (41) is rotatably arranged on the sliding block (42).

3. The washing machine cover plate abrasive belt grinding workbench according to claim 2, characterized in that the linkage assembly (5) comprises a first linkage plate (51), a second linkage plate (52), a gear rack (53) and a linkage gear (54), the first linkage plate (51) is slidably arranged on the top of the bracket (7), a circular avoiding hole (55) is formed in the first linkage plate (51), the grinding wheel (31) penetrates through the avoiding hole (55) to be fixedly connected with the locking piece (35), the second linkage plate (52) is slidably arranged on one side of the tensioning frame (43), the second linkage plate (52) is fixedly connected with the sliding block (42), the gear rack (53) is fixedly arranged on the bracket (7), the linkage gear (54) is rotatably connected with the gear rack (53), and gear racks are arranged on the first linkage plate (51) and the second linkage plate (52), the linkage gear (54) is meshed with racks on the first linkage plate (51) and the second linkage plate (52) respectively.

4. A washing machine cover plate belt sanding table according to claim 1, characterized in that a hood (9) for protecting the linkage assembly (5) is further provided on the bracket (7).

5. The abrasive belt grinding workbench for the cover plate of the washing machine as claimed in claim 1, wherein the dust removing assembly (6) comprises a dust removing bin (61), a dust suction pipe (62), a dust suction head (63) and an air suction pipe (64), the dust removing bin (61) is arranged inside the adjusting table (2), one end of the dust suction pipe (62) is arranged at one side of the dust removing bin (61), the dust suction head (63) is arranged at the other end of the dust suction pipe (62), the dust suction head (63) is arranged at the bottom of the grinding wheel (31), the air suction pipe (64) is arranged at the other side of the dust removing bin (61), the dust suction head (63), the dust suction pipe (62), the air suction pipe (64) and the dust removing bin (61) are communicated with each other, and an opening and closing door in movable connection is further arranged on the dust removing bin (61).

6. The abrasive belt grinding workbench for cover plates of washing machines as claimed in claim 5, wherein the dust removing assembly (6) further comprises an air suction cover (65) and a fan (66), the air suction cover (65) is arranged inside the adjusting table (2), the air suction cover (65) is hollow, a spindle of the grinding motor (34) is located in the air suction cover (65), the fan (66) is arranged in the air suction cover (65), the fan (66) is fixedly connected with the spindle of the grinding motor (34), the air suction pipe (64) is fixedly connected with the air suction cover (65) and communicated with each other, and a filter screen is further arranged at the connection position of the air suction pipe (64) and the dust removing bin (61).

7. The abrasive belt grinding workbench for the cover plate of the washing machine as claimed in claim 1, wherein an adjusting motor (10) is arranged at the bottom of the workbench (1), a screw rod (11) is fixedly connected to a main shaft of the adjusting motor (10), an adjusting block (12) is arranged at the bottom of the adjusting platform (2), the adjusting block (12) extends downwards to penetrate through the workbench (1) and then is in threaded connection with the screw rod (11), and a sliding hole for the adjusting block (12) to slide is formed in the workbench (1).