CN112894597B

CN112894597B - Plank burnishing device with clamping function

Info

Publication number: CN112894597B
Application number: CN202110191979.5A
Authority: CN
Inventors: 王天学
Original assignee: Hunan Wangfu Wood Industry Co ltd
Current assignee: Hunan Wangfu Wood Industry Co ltd
Priority date: 2021-02-20
Filing date: 2021-02-20
Publication date: 2022-09-09
Anticipated expiration: 2041-02-20
Also published as: CN112894597A

Abstract

The invention relates to a polishing device, in particular to a wood board polishing device with a clamping function. In order to solve the problem of positioning and clamping during wood board polishing, the wood board polishing device with the clamping function is provided, which can be accurately positioned and has the same product quality. The technical scheme of the invention is as follows: a plank polishing device with a clamping function comprises a bracket, a first supporting rod, a supporting plate, a reciprocating mechanism, a positioning mechanism and the like; the four first supporting rods are distributed on the support, the first supporting plates are fixedly arranged at one ends, far away from the support, of the four first supporting rods, the reciprocating mechanism is slidably arranged on the first supporting plates and is connected with the support in a sliding mode, and the positioning mechanism is fixedly arranged on one side, far away from the reciprocating mechanism, of the first supporting plates. The positioning mechanism is added in the device, so that the fed wood boards are positioned, the same polished positions of the fed wood boards are ensured, and the width of the positioning mechanism can be adjusted.

Description

Plank burnishing device with clamping function

Technical Field

The invention relates to a polishing device, in particular to a wood board polishing device with a clamping function.

Background

With the development of society, polishing technology is also continuously improved, and from the beginning of manual polishing to the polishing machines of today, the polishing machines are more and more perfect, and the polishing machines are divided into various types, including disk polishing machines, flat polishing machines, belt grinding polishing machines, reciprocating polishing machines, free-polishing type sanding machines and sanding machines.

A lot of work pieces are polished by hand, it is on the low rotational speed polishing wheel, coat right amount of polishing wax first, then turn up the rotational speed of the polishing wheel, polish the surface of the things, the surface polishing treatment of the work piece, the necessary condition is polishing wheel, polishing wax and buffing machine, use this type of buffing machine to hold the work piece and carry on the copying movement and polish according to the surface shape of the work piece by the hand.

When the manual operation is performed, the influence of the environment is large, and when a high-precision product is polished, a certain working experience of an operator is required, the manual labor consumption of the worker is large when the handheld polishing machine is used for polishing, and when the handheld polishing machine is used for batch production, the quality consistency of the product cannot be ensured, the production efficiency is low, and the large-batch production cannot be performed.

In view of the problems mentioned in the background art, a wood board polishing apparatus having a clamping function capable of performing precise positioning and of the same product quality is provided.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provide a wood board polishing device with a clamping function, which can carry out accurate positioning and has the same product quality.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides a plank burnishing device with press from both sides tight function, which comprises a bracket, first branch, the extension board, reciprocating mechanism, positioning mechanism, first grinding machanism and second grinding machanism, four first branches distribute on the support, first branch fixed mounting is in the one end of keeping away from the support of four first branches, reciprocating mechanism slidable mounting is on first extension board, reciprocating mechanism and support sliding connection, positioning mechanism fixed mounting is in the one side of keeping away from reciprocating mechanism of first extension board, first grinding machanism slidable mounting is on first extension board, two second grinding machanism fixed mounting are close to the both sides of two wherein first branches at the support.

Further, the reciprocating mechanism comprises a first motor, a first straight gear, a first gear rack, a second supporting rod, first sliding rods, sliding plates, a first fixing rod and a second supporting plate, the first motor is fixedly installed on the first supporting plate, the first straight gear is fixedly installed on an output shaft of the first motor, the first gear rack is slidably installed on one side, close to the first motor, of the first supporting plate, the first straight gear is meshed with the first gear rack, the second supporting rod is fixedly installed on one side of the first gear rack, the second supporting rod is slidably connected with the first supporting plate, the two first sliding rods are fixedly installed on two sides of the second supporting rod, the two sliding plates are fixedly installed at one ends of the two first sliding rods respectively, the two sliding plates are slidably connected with the support, the first fixing rod is fixedly installed between the two sliding plates, and the second supporting plate is fixedly connected with the first fixing rod.

Furthermore, the positioning mechanism comprises a fixed column, a third support plate, a second motor, a second straight gear, a third support rod, a fourth support plate, a second gear rack, a fourth support rod, a first fixing block and a clamping assembly, wherein the four fixed columns are fixedly arranged on one side of the first support plate far away from the first slide rod, the third support plate is fixedly arranged at the other end of the fixed column, the second motor is fixedly arranged on the third support plate, the second straight gear is fixedly arranged on an output shaft of the second motor, the third support rod is fixedly arranged on one side of the third support plate, the second gear rack is in sliding connection with the third support rod, one end of the second gear rack is fixedly connected with one side of the fourth support plate, the second gear rack is meshed with one side of the second straight gear, the first fixing block is fixedly arranged on one side of the third support plate far away from the third support rod, the other second gear rack is in sliding connection with the first fixing block and is fixedly connected with one side of the fourth support rod, the other second rack is meshed with the other side of the second straight gear, and the clamping assembly is arranged on the second support plate.

Furthermore, the clamping assembly comprises a second fixing rod, first squares and first screws, the second fixing rod is slidably mounted on the second support plate, the two first squares are fixedly mounted on one side of the second fixing rod, and the two first screws are respectively matched with the two first squares and the second support plate.

Further, the first polishing mechanism comprises a second slide bar, a third fixed bar, tension springs, a U-shaped frame, first springs, sliding columns, rotary columns, a rotary drum, a second fixed block, a third motor, a first belt wheel and a first belt, wherein the second slide bar is slidably mounted on a first support plate, the U-shaped frame is fixedly mounted at one end of the second slide bar, the third fixed bar is fixedly connected with the U-shaped frame and the second slide bar, the number of the tension springs is two, one end of each tension spring is fixedly mounted at one side of the first support plate, the other end of each tension spring is fixedly mounted at one side of the third fixed bar, the two sliding columns are respectively slidably connected with two ends of the U-shaped frame, the two first springs are respectively sleeved on the two sliding columns, two sides of the rotary column are respectively rotatably mounted on the two sliding columns, the rotary drum is fixedly mounted on the rotary column, the second fixed block is fixedly mounted at one side of the U-shaped frame, the third motor is fixedly mounted on the second fixed block, one first belt wheel is fixedly arranged on an output shaft of the third motor, the other first belt wheel is fixedly arranged on the rotary column, and the first belt is wound on the two first belt wheels.

Furthermore, the second polishing mechanism comprises a third fixed block, a fourth motor, a second belt wheel, a third belt wheel, a second belt, a millstone, a second spring, a third spring, a push block and a sleeve, wherein the two third fixed blocks are fixedly arranged on two sides of the bracket, the fourth motor is fixedly arranged on the third fixed block, the second belt wheel is fixedly arranged on an output shaft of the fourth motor, the sleeve is rotatably arranged on the third fixed block, the millstone is fixedly arranged on the inner side of the sleeve, the third belt wheel is fixedly arranged on the sleeve, the second belt is wound on the second belt wheel and the third belt wheel, the push block is slidably arranged on the other side in the sleeve, the push block is contacted with the sliding plate, the third spring is positioned on the inner side of the sleeve, one end of the third spring is fixedly connected with a shaft of the millstone, the other end of the third spring is fixedly connected with the push block, one ends of the two second springs are fixedly arranged on one side, close to the push block, of the third fixed block, the other end of the second spring is fixedly connected with one side of the push block.

Furthermore, the grinding device comprises a limiting mechanism, the limiting mechanism comprises a feeding plate, a limiting plate, second square blocks and second screws, the feeding plate is fixedly installed on one side, away from the second grinding mechanism, of the support, the limiting plate is slidably installed on one side, close to the feeding plate, of the support, the two second square blocks are fixedly installed on one side of the limiting plate, and the two square blocks are matched with the support through the two second screws.

Furthermore, the third spring in the sleeve plays a pre-tightening role, and plays a certain buffering role during the polishing of the grinding disc.

The invention has the beneficial effects that:

the positioning mechanism is added in the device, so that the fed wood boards are positioned, the polished positions of the fed wood boards are the same, the width of the positioning mechanism can be adjusted, the central positions of all the wood boards are kept unchanged, and the product quality is unified.

Adopt first grinding machanism to polish to the upper surface of plank in the device, adopt second grinding machanism to polish to two sides of plank simultaneously, adopt mechanized grinding machanism to replace artificial polishing, guaranteed the level and smooth of plank surface, the process of artifical polishing repeatedly has been lacked to the flow of mechanization simultaneously, has improved the efficiency of polishing.

The device is added with the positioning mechanism to position the sent wood board, and the two grinding mechanisms grind three surfaces of the wood board simultaneously, so that the wood board only needs to be manually fed and discharged, the polishing speed is accelerated while the quality is ensured, and the batch production is realized to a certain extent.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic structural diagram of the reciprocating mechanism of the present invention.

Fig. 3 is a schematic structural diagram of the positioning mechanism of the present invention.

Fig. 4 is a schematic structural diagram of the clamping mechanism of the present invention.

Fig. 5 is a schematic structural diagram of a first grinding mechanism of the present invention.

Fig. 6 is a partial structural schematic diagram of the first grinding mechanism of the present invention.

Fig. 7 is a schematic structural view of a second grinding mechanism according to the present invention.

Fig. 8 is a schematic structural view of the limiting mechanism of the present invention.

The meaning of the reference symbols in the figures: 1: a bracket, 101: first strut, 102: first plate, 2: first motor, 201: first straight gear, 202: first rack, 203: second strut, 204: first slide bar, 2041: a slide plate, 205: first fixing bar, 206: second plate, 3: fixed column, 301: third plate, 302: second motor, 303: second spur gear, 304: third strut, 305: fourth plate, 306: second rack, 307: fourth strut, 308: first fixed block, 309: second fixing lever, 3091: first block, 3092: first screw, 4: second slide bar, 401: third fixing bar, 402: tension spring, 403: u-shaped frame, 404: first spring, 405: strut, 406: rotating column, 407: drum, 408: second fixed block, 4081: third motor, 409: first pulley, 410: first belt, 5: third fixed block, 501: fourth motor, 502: second pulley, 503: third pulley, 504: second belt, 505: abrasive disc, 506: second spring, 507: third spring, 508: push block, 509: sleeve, 6: a feeding plate, 601: limiting plate, 602: second block, 603: a second screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Example 1

A wood board polishing device with a clamping function is disclosed, as shown in figures 1-7, and comprises a support 1, first supporting rods 101, supporting plates, a reciprocating mechanism, a positioning mechanism, a first polishing mechanism and second polishing mechanisms, wherein the four first supporting rods 101 are distributed on the upper portion of the support 1 close to the right side, the first supporting plate 102 is fixedly installed at the upper ends of the four first supporting rods 101, the reciprocating mechanism is slidably installed on the first supporting plate 102 and is slidably connected with the front side and the rear side of the upper portion of the support 1, the positioning mechanism is fixedly installed at the middle position of the lower portion of the first supporting plate 102, the first polishing mechanism is slidably installed on the first supporting plate 102, and the two second polishing mechanisms are fixedly installed on the front side and the rear side of the left portion of the upper portion of the support 1.

The working principle is as follows: the wood board to be polished is manually placed on the reciprocating mechanism, the reciprocating mechanism drives the wood board to slide, the positioning mechanism positions and tightens the wood board in the reciprocating mechanism, the reciprocating mechanism continues to push materials, the first polishing mechanism polishes the upper surface of the wood board, the second polishing mechanism polishes two side faces of the wood board, and after polishing is completed, manual collection is performed.

Example 2

On the basis of the embodiment 1, as shown in fig. 2 to 7, the reciprocating mechanism includes a first motor 2, a first straight gear 201, a first gear rack 202, a second support rod 203, a first slide rod 204, sliding plates 2041, a first fixing rod 205 and a second support plate 206, the first motor 2 is fixedly mounted on the first support plate 102, the first straight gear 201 is fixedly mounted on an output shaft of the first motor 2, the first gear rack 202 is slidably mounted on the upper middle of the first support plate 102 near the right side, the first straight gear 201 is engaged with the first gear rack 202, the second support rod 203 is fixedly mounted on the front side of the first gear rack 202, the second support rod 203 is slidably connected with the first support plate 102, the two first slide rods 204 are fixedly mounted on the front and rear sides of the second support rod 203, the two sliding plates 2041 are respectively fixedly mounted on the lower ends of the two first slide rods 204, the two sliding plates 2041 are slidably connected with the support 1, the first fixing rod 205 is fixedly mounted between the two sliding plates 2041, the second support plate 206 is fixedly connected to the first fixing rod 205.

The working principle is as follows: the first motor 2 is started, the rotation of the output shaft of the first motor 2 drives the rotation of the first straight gear 201, the first straight gear 201 is meshed with the first gear rack 202, the first gear rack 202, the second support rod 203 and the first slide rod 204 slide, the sliding plate 2041 drives the first fixing rod 205 and the second support plate 206 to slide in the right-rear direction along with the first slide rod 204, a wood plate to be polished is manually placed on the second support plate 206, then the first straight gear 201 is reversely meshed with the first gear rack 202, the second support plate 206 is driven to move in the left-front direction, the positioning mechanism clamps and positions the wood plate, the wood plate enters the first polishing mechanism along with the continuous movement of the reciprocating mechanism, the first polishing mechanism polishes the upper surface of the wood plate, and meanwhile, the second grinding mechanism carries out polishing treatment on two side surfaces of the wood board, and after the polishing treatment is finished, the ground wood board is manually collected finally.

The positioning mechanism comprises fixed columns 3, a third support plate 301, a second motor 302, a second straight gear 303, a third support rod 304, a fourth support plate 305, a second gear rack 306, a fourth support rod 307, a first fixing block 308 and a clamping assembly, wherein the four fixed columns 3 are fixedly arranged at the middle position of the lower part of the first support plate 102, the third support plate 301 is fixedly arranged at the lower end of the fixed column 3, the second motor 302 is fixedly arranged at the middle position of the upper part of the third support plate 301, the second straight gear 303 is fixedly arranged on an output shaft of the second motor 302, the third support rod 304 is fixedly arranged at the rear side of the third support plate 301, the second gear rack 306 at the upper side is in sliding connection with the upper side of the third support rod 304, the rear end of the second gear rack 306 is fixedly connected with the front side of the fourth support plate 305, the second gear rack 306 is engaged with the upper side of the second straight gear 303, the first fixing block 308 is fixedly arranged at the front side of the upper part of the third support plate 301, another second rack 306 is slidably connected to the first fixing block 308 and fixedly connected to the upper rear side of the fourth bar 307, another second rack 306 is engaged with the lower side of the second spur gear 303, and the clamping assembly is disposed on the second support plate 206.

The working principle is as follows: when the wood board is conveyed below the positioning mechanism, the second motor 302 is started, the second straight gear 303 fixedly arranged on the output shaft of the second motor 302 rotates, the second straight gear 303 is meshed with the two second gear racks 306, the two second gear racks 306 are driven to slide left and right and front, and the fourth supporting rod 307 and the fourth supporting plate 305 on two sides of the wood board are driven to position the wood board.

The clamping assembly comprises a second fixing rod 309, first blocks 3091 and first screws 3092, the second fixing rod 309 is slidably mounted on the right side of the upper portion of the second support plate 206, the two first blocks 3091 are fixedly mounted on the right side of the second fixing rod 309, and the two first screws 3092 are respectively matched with the two first blocks 3091 and the second support plate 206.

The working principle is as follows: after the wood board is placed on the second support plate 206, the second fixing rod 309 is manually attached to the wood board to ensure that the wood board is clamped, and the first screw 3092 is used to fix the second fixing rod 309 and the second support plate 206.

The first grinding mechanism comprises a second sliding rod 4, a third fixed rod 401, a tension spring 402, a U-shaped frame 403, a first spring 404, a sliding column 405, a rotating column 406, a rotating drum 407, a second fixed block 408, a third motor 4081, a first belt wheel 409 and a first belt 410, wherein the second sliding rod 4 is slidably mounted on the left side of the upper portion of the first supporting plate 102, the U-shaped frame 403 is fixedly mounted at the lower end of the second sliding rod 4, the third fixed rod 401 is fixedly connected with the U-shaped frame 403 and the second sliding rod 4, the number of the tension springs 402 is two, the upper end of the tension spring 402 is fixedly mounted on the lower side of the first supporting plate 102, the lower end of the tension spring 402 is fixedly mounted on the upper side of the third fixed rod 401, the two sliding columns 405 are respectively slidably connected with the front and rear ends of the lower side of the U-shaped frame 403, the two first springs 404 are respectively sleeved on the two sliding columns 405, the front and rear sides of the rotating column 406 are respectively rotatably mounted between the two sliding columns 405, the rotating drum 407 is fixedly mounted on the rotating column 406, the second fixing block 408 is fixedly installed on the front side of the lower portion of the horizontal plate of the U-shaped frame 403, the third motor 4081 is fixedly installed on the second fixing block 408, one first pulley 409 is fixedly installed on the output shaft of the third motor 4081, the other first pulley 409 is fixedly installed on the front side of the rotary column 406, and the first belt 410 is wound on the two first pulleys 409.

The working principle is as follows: after the wood board is sent to the first polishing mechanism, the third motor 4081 is started, the first belt wheel 409 fixedly connected with the first motor starts to rotate, the first belt wheel 409 fixedly installed on the rotary column 406 is driven to rotate through the first belt 410, the rotary column 406 and the rotary drum 407 rotate simultaneously to prepare polishing, when the reciprocating mechanism feeds materials, the front end of the second support rod 203 is in contact with the second slide rod 4 and presses the second slide rod 4 downwards, at the moment, the tension spring 402 is in a stretching state, the U-shaped frame 403 drives the slide column 405, the rotary column 406 and the rotary drum 407 to move downwards, when the rotary drum 407 is in contact with the first spring 404, the slide column 405 drives the rotary column 406 and the rotary drum 407 to move upwards for a certain distance to perform certain buffering, the rotary drum 407 starts to polish the wood board, and the whole upper surface of the wood board is polished along with the feeding of the reciprocating mechanism.

The second grinding mechanism comprises a third fixed block 5, a fourth motor 501, a second belt wheel 502, a third belt wheel 503, a second belt 504, a grinding disc 505, a second spring 506, a third spring 507, a push block 508 and a sleeve 509, wherein the two third fixed blocks 5 are fixedly arranged at the front side and the rear side of the left part of the upper part of the bracket 1, the fourth motor 501 is fixedly arranged, the second belt wheel 502 is fixedly arranged on an output shaft of the fourth motor 501, the second belt wheel 502 is positioned at the inner side of the third fixed block 5, the sleeve 509 is rotatably arranged at the middle position of the inner side of the third fixed block 5, the grinding disc 505 is fixedly arranged at the inner side of the sleeve 509, the third belt wheel 503 is fixedly arranged on the sleeve 509, the second belt 504 is wound on the second belt wheel 502 and the third belt wheel 503, the push block 508 is slidably arranged at the outer side of the sleeve 509, the push block 508 is contacted with the sliding plate 2041, the third spring 507 is positioned at the inner side of the sleeve 509, the inner end of the third spring 507 is fixedly connected with a shaft of the grinding disc 505, the outer ends of the third springs 507 are fixedly connected with the push blocks 508, the inner ends of the two second springs 506 are fixedly arranged at the outer sides of the third fixed blocks 5, and the outer ends of the second springs 506 are fixedly connected with the inner sides of the push blocks 508.

The working principle is as follows: when the first grinding mechanism grinds the wood board, the second grinding mechanism grinds two side surfaces of the wood board, at the moment, the fourth motor 501 is started, the second belt wheel 502 fixedly installed on the fourth motor 501 starts to rotate, the second belt 504 transmits the rotation of the second belt wheel 502 to the third belt wheel 503, the third belt wheel 503 drives the sleeve 509 and the grinding disc 505 to rotate, meanwhile, the sliding plate 2041 is in contact with the pushing block 508 and presses the pushing block 508 towards the inner side, when the pushing block 508 moves inwards, the second spring 506 and the third spring 507 are pressed, when the grinding disc 505 fixedly connected with the other end of the third spring 507 rotates, the wood board is pressed towards the inner side, two side surfaces of the wood board are polished, and after the polishing is finished, the pushing block 508 returns to the original position under the action of the second spring 506.

Example 3

On the basis of embodiment 2, as shown in fig. 7-8, the device further comprises a limiting mechanism, the limiting mechanism comprises a feeding plate 6, a limiting plate 601, a second block 602 and second screws 603, the feeding plate 6 is fixedly installed on the right side of the upper portion of the bracket 1, the limiting plate 601 is slidably installed on the right rear side of the upper portion of the bracket 1, the two second blocks 602 are fixedly installed on the rear side of the limiting plate 601, and the two blocks are matched with the bracket 1 through the two second screws 603.

The working principle is as follows: when carrying out the feeding process, at first on the artifical plank of putting the pay-off, limiting plate 601 is pressed close to one side of plank, and reciprocating mechanism takes second extension board 206 to the direction removal of delivery sheet 6, and after second extension board 206 and delivery sheet 6 contacted, the artifical plank of putting on delivery sheet 6 pushed away and accomplishes the feeding process on second extension board 206, when needing to place the plank of different width, takes limiting plate 601 to remove through adjusting second screw 603.

The third spring 507 in the sleeve 509 is arranged to play a pre-tightening role, and plays a certain buffering role when the grinding disc 505 is polished.

The working principle is as follows: the third spring 507 in the sleeve 509 is arranged to play a pre-tightening role, and plays a certain buffering role when the grinding disc 505 is polished.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of description and the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a plank burnishing device with clamping function, includes that support (1), first branch (101) and four first branch (101) distribute on support (1), and first extension board (102) fixed mounting is in the one end of keeping away from support (1) of four first branch (101), characterized by, still including: the grinding device comprises a support plate, a reciprocating mechanism, a positioning mechanism, a first grinding mechanism and second grinding mechanisms, wherein the reciprocating mechanism is slidably mounted on a first support plate (102), the reciprocating mechanism is slidably connected with a support (1), the positioning mechanism is fixedly mounted on one side, far away from the reciprocating mechanism, of the first support plate (102), the first grinding mechanism is slidably mounted on the first support plate (102), and the two second grinding mechanisms are fixedly mounted on two sides, close to two first support rods (101), of the support (1);

the reciprocating mechanism comprises a first motor (2), a first straight gear (201), a first gear rack (202), a second support rod (203), a first sliding rod (204), sliding plates (2041), a first fixing rod (205) and a second support plate (206), wherein the first motor (2) is fixedly arranged on the first support plate (102), the first straight gear (201) is fixedly arranged on an output shaft of the first motor (2), the first gear rack (202) is slidably arranged on one side, close to the first motor (2), of the first support plate (102), the first straight gear (201) is meshed with the first gear rack (202), the second support rod (203) is fixedly arranged on one side of the first gear rack (202), the second support rod (203) is slidably connected with the first support plate (102), the two first sliding rods (204) are fixedly arranged on two sides of the second support rod (203), the two sliding plates (2041) are respectively and fixedly arranged at one end of the two first sliding rods (204), the two sliding plates (2041) are connected with the bracket (1) in a sliding manner, the first fixing rod (205) is fixedly arranged between the two sliding plates (2041), and the second support plate (206) is fixedly connected with the first fixing rod (205);

the positioning mechanism comprises fixing columns (3), a third support plate (301), a second motor (302), a second straight gear (303), a third support rod (304), a fourth support plate (305), a second gear rack (306), a fourth support rod (307), a first fixing block (308) and a clamping assembly, wherein the four fixing columns (3) are fixedly arranged on one side, far away from the first sliding rod (204), of the first support plate (102), the third support plate (301) is fixedly arranged at the other end of the fixing columns (3), the second motor (302) is fixedly arranged on the third support plate (301), the second straight gear (303) is fixedly arranged on an output shaft of the second motor (302), the third support rod (304) is fixedly arranged on one side of the third support plate (301), one second gear rack (306) is slidably connected with the third support rod (304), one end of the second gear rack (306) is fixedly connected with one side of the fourth support plate (305), the second rack (306) is meshed with one side of the second straight gear (303), the first fixing block (308) is fixedly mounted on one side, far away from the third supporting rod (304), of the third supporting plate (301), the other second rack (306) is in sliding connection with the first fixing block (308) and is fixedly connected with one side of the fourth supporting rod (307), the other second rack (306) is meshed with the other side of the second straight gear (303), and the clamping assembly is arranged on the second supporting plate (206);

the clamping assembly comprises a second fixing rod (309), first square blocks (3091) and first screws (3092), the second fixing rod (309) is slidably mounted on a second support plate (206), the two first square blocks (3091) are fixedly mounted on one side of the second fixing rod (309), and the two first screws (3092) are respectively matched with the two first square blocks (3091) and the second support plate (206).

2. The wood board polishing device with the clamping function as claimed in claim 1, wherein the first polishing mechanism comprises a second sliding rod (4), a third fixing rod (401), a tension spring (402), a U-shaped frame (403), a first spring (404), a sliding column (405), a rotating column (406), a rotating drum (407), a second fixing block (408), a third motor (4081), a first belt wheel (409) and a first belt (410), the second sliding rod (4) is slidably mounted on the first support plate (102), the U-shaped frame (403) is fixedly mounted at one end of the second sliding rod (4), the third fixing rod (401) is fixedly connected with the U-shaped frame (403) and the second sliding rod (4), the tension springs (402) are provided in two numbers, one end of the tension spring (402) is fixedly mounted at one side of the first support plate (102), the other end of the tension spring (402) is fixedly mounted at one side of the third fixing rod (401), two sliding columns (405) are respectively connected with two ends of a U-shaped frame (403) in a sliding mode, two first springs (404) are respectively sleeved on the two sliding columns (405), two sides of a rotating column (406) are respectively rotatably installed on the two sliding columns (405), a rotating drum (407) is fixedly installed on the rotating column (406), a second fixing block (408) is fixedly installed on one side of the U-shaped frame (403), a third motor (4081) is fixedly installed on the second fixing block (408), a first belt wheel (409) is fixedly installed on an output shaft of the third motor (4081), another first belt wheel (409) is fixedly installed on the rotating column (406), and a first belt (410) is wound on the two first belt wheels (409).

3. The plank polishing device with clamping function as claimed in claim 2, wherein the second grinding mechanism comprises a third fixed block (5), a fourth motor (501), a second pulley (502), a third pulley (503), a second belt (504), a grinding disc (505), a second spring (506), a third spring (507), a push block (508) and a sleeve (509), two third fixed blocks (5) are fixedly arranged at two sides of the bracket (1), the fourth motor (501) is fixedly arranged on the third fixed block (5), the second pulley (502) is fixedly arranged on an output shaft of the fourth motor (501), the sleeve (509) is rotatably arranged on the third fixed block (5), the grinding disc (505) is fixedly arranged at the inner side of the sleeve (509), the third pulley (503) is fixedly arranged on the sleeve (509), the second belt (504) is wound on the second pulley (502) and the third pulley (503), the pushing block (508) is slidably mounted on the other side of the interior of the sleeve (509), the pushing block (508) is in contact with the sliding plate (2041), the third spring (507) is located on the inner side of the sleeve (509), one end of the third spring (507) is fixedly connected with a shaft of the grinding disc (505), the other end of the third spring (507) is fixedly connected with the pushing block (508), one ends of the two second springs (506) are fixedly mounted on one side, close to the pushing block (508), of the third fixed block (5), and the other end of the second spring (506) is fixedly connected with one side of the pushing block (508).

4. A wood board polishing device with clamping function according to claim 3, further comprising a limiting mechanism, wherein the limiting mechanism comprises a feeding plate (6), a limiting plate (601), a second block (602) and second screws (603), the feeding plate (6) is fixedly installed on one side of the bracket (1) far away from the second polishing mechanism, the limiting plate (601) is slidably installed on one side of the bracket (1) close to the feeding plate (6), the two second blocks (602) are fixedly installed on one side of the limiting plate (601), and the two blocks are matched with the bracket (1) through the two second screws (603).

5. A plank polishing device with clamping function as defined in claim 4 wherein the third spring (507) in the sleeve (509) is arranged to pre-tighten and to buffer the polishing of the grinding disc (505).