CN220783244U - Fixed-thickness sander for floor base material - Google Patents

Abstract

The utility model relates to the technical field of floor substrate processing, in particular to a fixed-thickness sander for floor substrates, which can automatically sand the floor substrates by arranging the equipment, thereby improving the working efficiency, saving the labor, facilitating the whole movement of a workbench and reducing the cost; including workstation, two sets of expansion brackets, two sets of first bolts, moving platform, drive arrangement, clamping mechanism, storage device and elevating system, the workstation top is provided with first spout, and moving platform slides on first spout, and moving platform left portion and right part all communicate and are provided with the second spout, and drive arrangement is connected with moving platform, and clamping mechanism installs on two sets of expansion brackets, and storage device installs in the workstation bottom, and elevating system installs in workstation left end upper portion, and elevating system corresponds with the moving platform position.

Description

Fixed-thickness sander for floor base material

Technical Field

The utility model relates to the technical field of floor substrate processing, in particular to a fixed-thickness sander for floor substrates.

Background

The floor base material is a main material of the floor in the manufacturing process of the floor, and is manufactured by adopting auxiliary materials such as solid wood or ceramic, and the base material is a component part of the composite floor.

The floor substrate needs to be polished into specified thickness and smooth surface by using a sander in the processing process, and the existing method for polishing the floor substrate is that manual operation is needed to polish the floor substrate if a smaller polishing machine is used, so that the floor substrate is time-consuming and labor-consuming, the working efficiency is lower, and the floor substrate is inconvenient to move and has higher cost if a larger polishing machine is used.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the thickness-fixed sander for the floor substrate, which not only can automatically sand the floor substrate, improves the working efficiency, saves labor, but also is convenient for moving the whole workbench and reduces the cost.

The utility model relates to a fixed-thickness sanding machine for floor base materials, which comprises a workbench, two groups of telescopic frames, two groups of first bolts, a moving platform, a driving device, a clamping mechanism, a storage device and a lifting mechanism, wherein the top end of the workbench is provided with a first sliding groove, the moving platform slides on the first sliding groove, the left part and the right part of the moving platform are respectively communicated with a second sliding groove, the two groups of telescopic frames slide in the second sliding grooves on the left side and the right side of the moving platform respectively, the left side and the right side of the front end of the moving platform are respectively communicated with first threaded holes, the two groups of first bolts are in threaded connection with the two groups of first threaded holes, the two groups of first bolts are fixedly fastened on the tops of the two groups of telescopic frames, the driving device is arranged at the bottom end of the workbench, the driving device is connected with the moving platform, the clamping mechanism is arranged on the two groups of telescopic frames, the storage device is arranged at the bottom end of the workbench, the lifting mechanism is arranged at the upper part of the left end of the workbench, and the lifting mechanism corresponds to the position of the moving platform.

The utility model relates to a fixed-thickness sander for floor base materials, which comprises two groups of motors, two groups of cams, two groups of telescopic pipes, two groups of nuts and two groups of telescopic rods, wherein the two groups of motors are respectively arranged on the front side and the rear side of the middle part of the bottom end of a workbench, the two groups of cams are respectively arranged at the output ends of the two groups of motors, the lower parts of the two groups of cams are respectively communicated with first connecting holes, the lower parts of the front end and the rear end of a moving platform are respectively provided with second connecting holes, the two groups of telescopic pipes are respectively connected with the two groups of second connecting holes in a rotating way, telescopic grooves are respectively arranged in the two groups of telescopic pipes, the outer ends of the two groups of telescopic pipes are respectively communicated with long holes, the two groups of telescopic rods are respectively connected with the two groups of telescopic grooves in a sliding way, the right ends of the two groups of telescopic rods are respectively arranged at the left ends of the two groups of telescopic rods, the two groups of sliding columns slide in the two groups of long holes respectively, threads are respectively arranged at the outer sides of the two groups of sliding columns, and the two groups of nuts are respectively connected with the two groups of sliding columns in a threaded way.

The clamping mechanism of the fixed-thickness sander for the floor base material comprises two groups of fixing seats, two groups of connecting blocks and two groups of clamping plates, wherein the two groups of fixing seats are respectively arranged at the inner ends of the two groups of telescopic brackets, third connecting holes are formed in the inner ends of the two groups of fixing seats, the two groups of connecting blocks are rotationally connected with the two groups of fixing seats through the two groups of third connecting holes, third sliding grooves are formed in the inner ends of the two groups of connecting blocks, and the two groups of clamping plates are in sliding connection with the two groups of third sliding grooves.

The utility model relates to a fixed-thickness sander for floor base materials, which comprises a clamping block, four groups of mounting seats, four groups of pin shafts, four groups of supporting legs, four groups of clamping sleeves and four groups of second bolts, wherein the clamping block is arranged in the middle of the bottom end of a workbench, four groups of cylinders are uniformly distributed at the bottom end of the clamping block, the four groups of mounting seats are respectively arranged at the left front side, the left rear side, the right front side and the right rear side of the bottom end of the workbench, pin grooves are respectively arranged at the left front part, the left rear part, the right front part and the right rear part of the bottom end of the workbench, the four groups of pin shafts are respectively arranged at the top ends of the four groups of supporting legs, the four groups of supporting legs are respectively connected with the four groups of mounting seats in a rotating manner, the four groups of pin shafts are respectively clamped with the four groups of pin grooves, two groups of idler wheels are respectively arranged at the outer ends of each group of supporting legs, the four groups of clamping sleeves are respectively arranged at the lower sides of the inner ends of the four groups of the supporting legs, the four groups of cylinders at the bottom end of the clamping block correspond to the four groups of cylinders, the outer ends of the four groups of the clamping sleeves are respectively communicated with second threaded holes, the four groups of second bolts are respectively in threaded connection with the four groups of second threaded holes, and the four groups of cylinders on the clamping block are tightly fixed.

The utility model relates to a fixed-thickness sander for floor base materials, which comprises a connecting frame, two groups of I-shaped blocks, two groups of electric push rods, two groups of triangular plates, a third bolt and a sander, wherein the connecting frame is arranged at the right end of the two groups of I-shaped blocks, the front part and the rear part of the upper side of the left end of a workbench are respectively communicated with fourth sliding grooves, the two groups of I-shaped blocks slide in the two groups of fourth sliding grooves respectively, the two groups of electric push rods are respectively arranged at the top ends of the two groups of triangular plates, the output ends of the two groups of electric push rods are respectively connected with the two groups of I-shaped blocks, the two groups of triangular plates are arranged at the front part and the rear part of the left end of the workbench, the right end of the connecting frame is communicated with a mounting hole, the sander is in sliding connection with the mounting hole, the top end of the mounting hole is communicated with a third threaded hole, the third bolt is in threaded connection with the third threaded hole, and the third bolt tightly props up the sander.

Compared with the prior art, the utility model has the beneficial effects that: the floor substrate is placed on the moving platform, two groups of first bolts are unscrewed, two groups of telescopic frames slide in two groups of second sliding grooves of the moving platform, after clamping mechanisms on the two groups of telescopic frames clamp and fix the floor substrate, the two groups of first bolts are in threaded connection with the two groups of first threaded holes, the two groups of first bolts tightly prop up the two groups of telescopic frames and fix the moving platform on the first sliding grooves through the driving device, then the lifting mechanism is opened, the lifting mechanism moves downwards and sand the floor substrate moving left and right, when the whole moving of the workbench is needed, the containing device is folded, the workbench moves under the driving of the containing device, the floor substrate can be automatically sanded through the equipment, the working efficiency is improved, the labor is saved, the whole moving of the workbench is facilitated, and the cost is reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a left-hand structural schematic of FIG. 1;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1A;

FIG. 4 is an enlarged schematic view of the structure of B in FIG. 1;

the reference numerals in the drawings: 1. a work table; 2. a first chute; 3. a telescopic frame; 4. a first threaded hole; 5. a first bolt; 6. a second chute; 7. a mobile platform; 8. a motor; 9. a cam; 10. a first connection hole; 11. a second connection hole; 12. a telescopic tube; 13. a spool; 14. a nut; 15. a long hole; 16. a telescopic slot; 17. a telescopic rod; 18. a fixing seat; 19. a third connection hole; 20. a connecting block; 21. a third chute; 22. a clamping plate; 23. a clamping block; 24. a mounting base; 25. a pin slot; 26. a pin shaft; 27. a support leg; 28. a roller; 29. a cutting sleeve; 30. a second threaded hole; 31. a second bolt; 32. a connecting frame; 33. i-shaped blocks; 34. a fourth chute; 35. an electric push rod; 36. a triangle; 37. a third threaded hole; 38. a third bolt; 39. a mounting hole; 40. a sanding machine.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 4, the fixed-thickness sanding machine for floor substrates comprises a workbench 1, two groups of telescopic brackets 3, two groups of first bolts 5, a moving platform 7, a driving device, a clamping mechanism, a containing device and a lifting mechanism, wherein the top end of the workbench 1 is provided with a first chute 2, the moving platform 7 slides on the first chute 2, the left part and the right part of the moving platform 7 are respectively communicated with a second chute 6, the two groups of telescopic brackets 3 slide in the second chutes 6 on the left side and the right side of the moving platform 7 respectively, the left side and the right side of the front end of the moving platform 7 are respectively communicated with first threaded holes 4, the two groups of first bolts 5 are in threaded connection with the two groups of first threaded holes 4, the two groups of first bolts 5 tightly prop up and fix the two groups of telescopic brackets 3, the driving device is arranged at the bottom end of the workbench 1, the driving device is connected with the moving platform 7, the clamping mechanism is arranged on the two groups of telescopic brackets 3, the containing device is arranged at the bottom end of the workbench 1, the lifting mechanism is arranged at the upper part of the left end of the workbench 1, and the lifting mechanism is correspondingly positioned with the moving platform 7;

the floor substrate is placed on the moving platform 7, two groups of first bolts 5 are unscrewed, two groups of telescopic frames 3 slide in two groups of second sliding grooves 6 of the moving platform 7, after clamping mechanisms on the two groups of telescopic frames 3 clamp and fix the floor substrate, the two groups of first bolts 5 are rotated, the two groups of first bolts 5 are in threaded connection with the two groups of first threaded holes 4, the two groups of first bolts 5 tightly prop up and fix the two groups of telescopic frames 3, then the moving platform 7 is driven by a driving device to move left and right on the first sliding grooves 2, then a lifting mechanism is opened, the lifting mechanism moves downwards and sand the floor substrate moving left and right, when the whole moving of the workbench 1 is needed, a containing device is folded, the workbench 1 moves under the driving of the containing device, by setting the equipment, the floor substrate can be automatically sanded, the working efficiency of the floor substrate is improved, the manpower is saved, the whole moving of the workbench 1 is facilitated, and the cost of the floor substrate is reduced.

The utility model relates to a fixed-thickness sander for floor base materials, which comprises two groups of motors 8, two groups of cams 9, two groups of telescopic pipes 12, two groups of nuts 14 and two groups of telescopic rods 17, wherein the two groups of motors 8 are respectively arranged on the front side and the rear side of the middle part of the bottom end of a workbench 1, the two groups of cams 9 are respectively arranged at the output ends of the two groups of motors 8, the lower parts of the two groups of cams 9 are respectively communicated with first connecting holes 10, the lower parts of the front end and the rear end of a movable platform 7 are respectively provided with second connecting holes 11, the two groups of telescopic pipes 12 are respectively connected with the two groups of second connecting holes 11 in a rotating way, telescopic grooves 16 are respectively arranged in the two groups of telescopic pipes 12, long holes 15 are respectively arranged at the outer ends of the two groups of telescopic pipes 12 in a communicating way, the two groups of telescopic rods 17 are respectively connected with the two groups of telescopic grooves 16 in a sliding way, the right end of the two groups of telescopic rods 17 are respectively connected with the two groups of first connecting holes 10 in a rotating way, the two groups of sliding columns 13 are respectively arranged at the left ends of the two groups of telescopic rods 17, the two groups of sliding columns 13 are respectively slide in the two groups of long holes 15, the outer sides of the two groups of sliding columns 13 are respectively provided with threads, and the two groups of nuts 14 are respectively connected with the two groups of sliding columns 13 in a threaded way;

through setting up motor 8, cam 9, first connecting hole 10, the second connecting hole 11, flexible pipe 12, the strut 13, nut 14, slot hole 15, expansion tank 16 and telescopic link 17, adjust the length of two sets of flexible pipes 12 and two sets of telescopic link 17 according to the travel of mobile platform 7, through unscrewing two sets of nuts 14, make two sets of telescopic link 17 slide in the expansion tank 16 in two sets of flexible pipes 12, two sets of strut 13 then slide in two sets of slot hole 15, after two sets of flexible pipe 12 and two sets of telescopic link 17 adjust to appointed length, through rotating two sets of nuts 14, two sets of nuts 14 then with two sets of strut 13 threaded connection, two sets of nuts 14 then carry out the top tightly to two sets of strut 13, thereby fix two sets of telescopic link 17, then open two sets of motor 8, two sets of motor 8 then drive mobile platform 7 whole through two sets of cam 9, two sets of telescopic link 17 and two sets of flexible pipe 12 and slide about first spout 2, mobile platform 7 then drive floor substrate side by side-to-side, drive floor substrate side-to-side sliding, the effect, thereby realize the floor substrate side-by side.

The utility model relates to a fixed-thickness sander for floor base materials, which comprises two groups of fixed seats 18, two groups of connecting blocks 20 and two groups of clamping plates 22, wherein the two groups of fixed seats 18 are respectively arranged at the inner ends of two groups of telescopic frames 3, third connecting holes 19 are respectively arranged at the inner ends of the two groups of fixed seats 18, the two groups of connecting blocks 20 are rotationally connected with the two groups of fixed seats 18 through the two groups of third connecting holes 19, third sliding grooves 21 are respectively arranged at the inner ends of the two groups of connecting blocks 20, and the two groups of clamping plates 22 are in sliding connection with the two groups of third sliding grooves 21;

through setting up fixing base 18, third connecting hole 19, connecting block 20, third spout 21 and splint 22, when the inside close to of two sets of expansion brackets 3, two sets of splint 22 then contact with the floor substrate, and two sets of splint 22 then adapt according to the shape of floor substrate, and two sets of splint 22 then slide on two sets of third spouts 21, and two sets of connecting blocks 20 then rotate on two sets of fixing bases 18 to carry out the centre gripping fixed to the floor substrate, play the effect to floor substrate clamping is fixed.

The utility model relates to a fixed-thickness sander for floor base materials, which comprises a clamping block 23, four groups of mounting seats 24, four groups of pin shafts 26, four groups of supporting legs 27, four groups of clamping sleeves 29 and four groups of second bolts 31, wherein the clamping block 23 is arranged in the middle of the bottom end of a workbench 1, four groups of cylinders are uniformly distributed at the bottom end of the clamping block 23, the four groups of mounting seats 24 are respectively arranged at the left front side, the left rear side, the right front side and the right rear side of the bottom end of the workbench 1, pin grooves 25 are respectively arranged at the left front part, the left rear part, the right front part and the right rear part of the bottom end of the workbench 1, the four groups of pin shafts 26 are respectively arranged at the top ends of the four groups of supporting legs 27, the four groups of supporting legs 27 are respectively connected with the four groups of mounting seats 24 in a rotating way, the four groups of pin shafts 26 are respectively clamped with the four groups of pin grooves 25, the outer ends of each group of supporting legs 27 are respectively provided with two groups of rollers 28, the four groups of clamping sleeves 29 are respectively arranged at the lower sides of the inner ends of the four groups of the supporting legs 27, the four groups of cylinders at the positions of the four groups of the bottom ends of the clamping sleeves 29 correspond to the bottom ends of the clamping block 23, the four groups of cylinders, the outer ends of the four groups 29 are respectively communicated with each other, second threaded holes 30 are respectively arranged, the outer ends of the four groups of cylinders, the four groups of the outer ends of the clamping sleeves 29 are respectively, the four tightly correspond respectively, the four screw tightly connected with the fourth threaded holes 31, and are respectively fixedly connected with the four groups of the four threaded holes 31, and are respectively tightly screwed with the four upper threads of the four groups of the four ends and fixed by the upper ends;

through setting up fixture block 23, mount pad 24, pin groove 25, round pin axle 26, landing leg 27, gyro wheel 28, cutting ferrule 29, second screw hole 30 and second bolt 31, when needs are to the whole removal of workstation 1, through inwards rotate four sets of landing legs 27, the round pin axle 26 on four sets of landing legs 27 then separates with four sets of pin groove 25, then make four sets of cutting ferrule 29 respectively with the four sets of cylinder clamps of fixture block 23 bottom, afterwards rotate four sets of second bolts 31, four sets of second bolts 31 then with four sets of second screw hole 30 threaded connection, four sets of second bolts 31 then are tightly supported four sets of cylinders on the fixture block 23 to fix four sets of landing legs 27, the gyro wheel 28 on four sets of landing legs 27 then supports the whole workstation 1 and drives its removal, be convenient for accomodate four sets of landing legs 27, thereby be convenient for carry out the removal to the workstation 1 is whole.

The utility model relates to a fixed-thickness sander for floor base materials, which comprises a connecting frame 32, two groups of I-shaped blocks 33, two groups of electric push rods 35, two groups of triangular plates 36, a third bolt 38 and a sanding machine 40, wherein the connecting frame 32 is arranged at the right end of the two groups of I-shaped blocks 33, the front part and the rear part of the upper side of the left end of a workbench 1 are respectively communicated with a fourth chute 34, the two groups of I-shaped blocks 33 respectively slide in the two groups of fourth chutes 34, the two groups of electric push rods 35 are respectively arranged at the top ends of the two groups of triangular plates 36, the output ends of the two groups of electric push rods 35 are respectively connected with the two groups of I-shaped blocks 33, the two groups of triangular plates 36 are arranged at the front part and the rear part of the left end of the workbench 1, the right end of the connecting frame 32 is communicated with a mounting hole 39, the sanding machine 40 is in sliding connection with the mounting hole 39, the top end of the mounting hole 39 is communicated with a third threaded hole 37, the third bolt 38 is in threaded connection with the third threaded hole 37, and the third bolt 38 is fixedly fastens the top of the sanding machine 40;

through setting up link 32, I-shaped block 33, fourth spout 34, electric putter 35, set square 36, third screw hole 37, third bolt 38, mounting hole 39 and grinder 40, insert grinder 40 in the mounting hole 39 on link 32, then through rotating third bolt 38, third bolt 38 then with third screw hole 37 threaded connection, third bolt 38 then is fixed on grinder 40 top, when need carry out the sanding to the floor substrate, open two sets of electric putter 35, two sets of electric putter 35 then drive two sets of I-shaped blocks 33 slide in two sets of fourth spouts 34 on workstation 1, two sets of I-shaped blocks 33 then drive grinder 40 through link 32 and move downwards, after grinder 40 hugs closely with the floor substrate, close two sets of electric putter 35, grinder 40 then sand the floor substrate that moves, play the key effect to the floor substrate.

When the fixed-thickness sander for floor base materials of the utility model works, firstly, the floor base materials are placed on the movable platform 7, two groups of first bolts 5 are unscrewed, so that two groups of expansion brackets 3 slide in two groups of second sliding grooves 6 of the movable platform 7, when the two groups of expansion brackets 3 approach inwards, two groups of clamping plates 22 contact the floor base materials, the two groups of clamping plates 22 adapt to the shape of the floor base materials, the two groups of clamping plates 22 slide on two groups of third sliding grooves 21, the two groups of connecting blocks 20 rotate on two groups of fixing seats 18, when the two groups of clamping plates 22 clamp and fix the floor base materials, the two groups of first bolts 5 are in threaded connection with the two groups of first threaded holes 4 by rotating the two groups of first bolts 5, the two groups of first bolts 5 tightly prop up and fix the two groups of expansion brackets 3, then the lengths of the two groups of expansion pipes 12 and the two groups of expansion rods 17 are adjusted according to the moving stroke of the movable platform 7, by unscrewing the two sets of nuts 14, the two sets of telescopic rods 17 slide in the telescopic slots 16 in the two sets of telescopic tubes 12, the two sets of slide posts 13 slide in the two sets of long holes 15, after the two sets of telescopic tubes 12 and the two sets of telescopic rods 17 are adjusted to the specified length, the two sets of nuts 14 are in threaded connection with the two sets of slide posts 13 by rotating the two sets of nuts 14, the two sets of nuts 14 tightly prop up the two sets of slide posts 13, thereby fixing the two sets of telescopic rods 17, then the two sets of motors 8 are opened, the two sets of motors 8 drive the moving platform 7 to integrally slide left and right on the first sliding chute 2 through the two sets of cams 9, the two sets of telescopic rods 17 and the two sets of telescopic tubes 12, the moving platform 7 drives the floor base material to slide left and right, then the sander 40 is inserted into the mounting hole 39 on the connecting frame 32, then the third bolt 38 is in threaded connection with the third threaded hole 37 by rotating the third bolt 38, the third bolt 38 is used for fixing the top of the sanding machine 40, when the floor substrate needs to be sanded, two groups of electric push rods 35 are opened, the two groups of electric push rods 35 drive the two groups of I-shaped blocks 33 to slide in the two groups of fourth sliding grooves 34 on the workbench 1, the two groups of I-shaped blocks 33 drive the sanding machine 40 to move downwards through the connecting frame 32, when the sanding machine 40 is tightly attached to the floor substrate, the two groups of electric push rods 35 are closed, the sanding machine 40 is used for sanding the floor substrate which moves left and right, when the workbench 1 needs to be integrally moved, the four groups of supporting legs 27 are inwards rotated, the pin shafts 26 on the four groups of supporting legs 27 are separated from the four groups of pin grooves 25, then the four groups of clamping sleeves 29 are respectively clamped with the four groups of cylinders at the bottom ends of the clamping blocks 23, then the four groups of second bolts 31 are rotated, the four groups of second bolts 31 are in threaded connection with the four groups of second threaded holes 30, the four groups of cylinders on the clamping blocks 23 are tightly supported, so that the four groups of supporting legs 27 are fixed, and the whole supporting table 1 can be integrally supported and driven.

The fixed-thickness sander for the floor base material has the advantages that the installation mode, the connection mode or the setting mode of the sander are common mechanical modes, and the sander can be implemented as long as the beneficial effects of the sander can be achieved; the motor 8, the electric push rod 35 and the sanding machine 40 of the fixed-thickness sanding machine for floor base materials are purchased in the market, and can be installed and operated by a person skilled in the art according to the attached using instructions.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (5)

1. The utility model provides a floor substrate's thickness determination grinder, a serial communication port, including workstation (1), two sets of expansion bracket (3), two sets of first bolts (5), moving platform (7), drive arrangement, clamping mechanism, storage device and elevating system, workstation (1) top is provided with first spout (2), moving platform (7) slide on first spout (2), moving platform (7) left portion and right part all communicate and are provided with second spout (6), two sets of expansion bracket (3) slide in left and right sides second spout (6) of moving platform (7) respectively, the front end left side and the front end right side of moving platform (7) all communicate and are provided with first screw hole (4), two sets of first bolts (5) and two sets of first screw holes (4) threaded connection, two sets of first bolts (5) are tightly fixed to two sets of expansion bracket (3) top, drive arrangement installs in workstation (1) bottom, drive arrangement and moving platform (7) are connected, clamping mechanism installs on two sets of expansion bracket (3), storage device installs in workstation (1) bottom corresponding to elevating system (1), the elevating system installs in workstation (1).

2. The fixed thickness sander of a floor substrate according to claim 1, wherein the driving device comprises two groups of motors (8), two groups of cams (9), two groups of telescopic pipes (12), two groups of nuts (14) and two groups of telescopic rods (17), the two groups of motors (8) are respectively installed at the front side and the rear side of the middle part of the bottom end of the workbench (1), the two groups of cams (9) are respectively installed at the output ends of the two groups of motors (8), the lower parts of the two groups of cams (9) are respectively communicated with a first connecting hole (10), the lower parts of the front end and the rear end of the mobile platform (7) are respectively provided with a second connecting hole (11), the two groups of telescopic pipes (12) are respectively connected with the two groups of second connecting holes (11) in a rotating mode, the two groups of telescopic pipes (12) are respectively provided with telescopic grooves (16), the outer ends of the two groups of telescopic rods (12) are respectively connected with long holes (15), the two groups of telescopic rods (17) are respectively connected with the two groups of telescopic grooves (16) in a sliding mode, the right ends of the two groups of telescopic rods (17) are respectively connected with the two groups of first connecting holes (10) in a rotating mode, the two groups of telescopic rods (13) are respectively connected with the two groups of telescopic rods (13) in a sliding mode, and the two groups of telescopic rods (13 are respectively connected with two groups of screw threads (13) in a threaded mode.

3. The fixed thickness sander of a floor substrate according to claim 2, wherein the clamping mechanism comprises two groups of fixing seats (18), two groups of connecting blocks (20) and two groups of clamping plates (22), the two groups of fixing seats (18) are respectively arranged at the inner ends of the two groups of telescopic brackets (3), the inner ends of the two groups of fixing seats (18) are respectively provided with a third connecting hole (19), the two groups of connecting blocks (20) are rotationally connected with the two groups of fixing seats (18) through the two groups of third connecting holes (19), the inner ends of the two groups of connecting blocks (20) are respectively provided with a third sliding groove (21), and the two groups of clamping plates (22) are in sliding connection with the two groups of third sliding grooves (21).

4. A fixed thickness sander for floor base materials as set forth in claim 3, wherein the storage device comprises a clamping block (23), four groups of mounting seats (24), four groups of pin shafts (26), four groups of supporting legs (27), four groups of clamping sleeves (29) and four groups of second bolts (31), the clamping block (23) is mounted in the middle of the bottom end of the workbench (1), four groups of cylinders are uniformly distributed at the bottom end of the clamping block (23), the four groups of mounting seats (24) are respectively mounted on the left front side, the left rear side, the right front side and the right rear side of the bottom end of the workbench (1), pin grooves (25) are respectively arranged on the left front part, the left rear part, the right front part and the right rear part of the bottom end of the workbench (1), the four groups of pin shafts (26) are respectively mounted on the top ends of the four groups of the supporting legs (27), the four groups of supporting legs (27) are respectively connected with the four groups of mounting seats (24) in a rotating manner, the four groups of pin shafts (26) are respectively clamped with the four groups of pin grooves (25), two groups of cylinders (28) are respectively arranged at the outer ends of each group of the supporting legs (27), the four groups of supporting legs (29) are respectively connected with the four groups of cylinders (30) in a threaded manner, the four groups of screw holes (30) are respectively arranged at the positions corresponding to the four groups of the bottoms of the four supporting sleeves (29) and are respectively connected with the four groups of the four clamping sleeves (30, the four groups of second bolts (31) tightly press and fix the four groups of cylinders on the clamping block (23).

5. The fixed-thickness sanding machine for floor substrates according to claim 4, wherein the lifting mechanism comprises a connecting frame (32), two groups of I-shaped blocks (33), two groups of electric push rods (35), two groups of triangular plates (36), a third bolt (38) and a sanding machine (40), the connecting frame (32) is arranged at the right end of the two groups of I-shaped blocks (33), the front part and the rear part of the upper left end of the workbench (1) are respectively communicated with a fourth sliding groove (34), the two groups of I-shaped blocks (33) slide in the two groups of fourth sliding grooves (34) respectively, the two groups of electric push rods (35) are respectively arranged at the top ends of the two groups of triangular plates (36), the output ends of the two groups of electric push rods (35) are respectively connected with the two groups of I-shaped blocks (33), the two groups of triangular plates (36) are arranged at the front part and the rear part of the left end of the workbench (1), the connecting frame (32) is communicated with the right end of the mounting hole (39), the sanding machine (40) is in sliding connection with the mounting hole (39), the top end of the mounting hole (39) is communicated with the third threaded hole (37), and the third bolt (38) is fixedly connected with the top screw hole (40).