CN219924693U - Fixed-length cutting equipment for building material plate - Google Patents

Abstract

The utility model discloses a fixed-length cutting device for a building material plate, which relates to the technical field of plate cutting and comprises a device main body, a length measuring device arranged on the upper surface of the device main body, a depth cutting control device arranged on the upper surface of the device main body, a push plate device arranged on the side surface of the device main body, a clamping device arranged on the lower surface of the device main body and a cutting device fixedly arranged on the top of the device main body. According to the utility model, the cut position and the cut depth of the plate can be rapidly determined by using the scale marks through the length measuring device and the cut depth control device, and the manual scribing and positioning are not needed, so that the working efficiency is high; the push plate device prevents workers from approaching the cutting machine too much, potential safety hazards are reduced, the feeding amount of the plate is uniform and stable in a stepping mode of controlling the plate by shaking the rotating handle, and the cutting quality is improved; the clamping force is controlled in a screw mode, the plate is prevented from moving while the plate is prevented from being pressed too much, and the cutting quality is guaranteed.

Description

Fixed-length cutting equipment for building material plate

Technical Field

The utility model relates to the technical field of plate cutting, in particular to a fixed-length cutting device for a building material plate.

Background

Building materials are the general terms of materials used in civil engineering and constructional engineering, and can be divided into structural materials, decorative materials and certain special materials, wherein the structural materials comprise wood, bamboo, stone, cement, concrete, metal, bricks and tiles, ceramics, glass, engineering plastics, composite materials and the like; the plate-shaped building materials generally need to be measured and cut off and then used, and are usually manually held by a cutting machine at present, so that time and labor are wasted.

Such as Chinese patent publication No.: according to the plate cutting machine for the building material, disclosed by the utility model, the machine body, the fixed box, the movable plate, the clamping jaw, the telescopic rod, the spring, the fixed plate, the supporting plate, the air cylinder, the sliding block, the sliding groove, the pulley, the transmission block, the anti-slip pad, the supporting leg, the movable wheel, the handle and the transmission column are arranged to be matched, so that the problem that the conventional plate cutting machine for the building material does not have an automatic clamping function is solved, the plate cutting machine for the building material has the advantage of automatic clamping, the use of a user can be facilitated, the time of the user is saved, and the working efficiency of the plate cutting machine for the building material is enhanced

In order to solve the problem that manual cutting of the plate takes time and labor, the prior art adopts a mode of designing an automatic clamping device to process, but the problems that the size of the plate needs to be manually measured in an auxiliary mode and the plate needs to be drawn, the plate needs to be manually pushed to be cut, the automatic clamping device of the air cylinder easily causes the plate to be pressed greatly, and then the processing efficiency is improved obviously, the working personnel needs to be in close contact with the cutting machine, potential safety hazards exist, and the clamping force is large, so that the plate is blocked and the cutting joint is easy to incline during cutting can be caused.

Disclosure of Invention

The utility model aims to provide a fixed-length cutting device for a building material plate, which aims to solve the problems in the background technology.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a material board fixed length cuts equipment for building, includes the device main part, the device main part is including mesa, table frame, clamping device axle bed one, clamping device axle bed two, length measurement axle bed and depth control axle bed, the top one side of mesa is fixed mounting has cutting device, the top of mesa is provided with the panel, the top of mesa is provided with length measurement device, the top of mesa is provided with depth control device, be provided with push pedal device on one side of mesa, the bottom of mesa is provided with clamping device;

the length measuring device comprises a first screw rod, a first baffle plate, a first rotating handle and a first pulley, wherein the first screw rod is embedded and installed in a shaft hole of the length measuring shaft seat;

the depth cutting control device comprises a second screw rod, a second baffle plate, a second rotating handle and a second pulley, wherein the second screw rod is embedded and installed in a shaft hole of the depth cutting control shaft seat;

the pushing plate device comprises a screw rod III, a positioning rod I, a baffle plate III, a rotating handle III and a pushing plate, wherein the screw rod III is embedded and arranged on the side surface of the table top;

the clamping device comprises a screw rod IV, a positioning rod II, a baffle plate IV, a rotating handle IV and a clamping plate, wherein the screw rod IV is embedded and installed in shaft holes of a clamping device shaft seat I and a clamping device shaft seat II.

The technical scheme of the utility model is further improved as follows: the upper surface of the table top is symmetrically provided with a length measuring device groove and a depth cutting control groove respectively, the edges of the length measuring device groove and the depth cutting control groove of the table top are provided with scale marks, the upper surface of the table top is provided with a through chip collecting groove, the inner wall of the chip collecting groove of the table top is provided with a threaded hole, the two sides of the threaded hole of the table top are symmetrically provided with positioning holes, the table frame is fixedly arranged at the bottom of the table top, the first clamping device shaft seat is fixedly arranged at the rear bottom side of the table top, the second clamping device shaft seat is fixedly arranged at the front bottom of the table top, the outer surface of the first clamping device shaft seat is provided with screw holes and positioning holes at equal intervals, the outer surface of the second clamping device shaft seat is provided with through screw holes and positioning holes at equal intervals, the first clamping device shaft seat, the screw holes of the second clamping device shaft seat and the positioning holes of the second clamping device are positioned on the same axis, the length measuring shaft seat is fixedly arranged at the rear top of the table top, the depth cutting control shaft seat is fixedly arranged at the right top of the table top, and the second clamping device shaft seat is provided with through screw holes;

by adopting the technical scheme, the cuttings can fall below the table top from the cuttings collection groove, so that the cuttings are convenient to collect and clean.

The technical scheme of the utility model is further improved as follows: the external thread of the first screw rod is meshed with the internal thread of the screw rod hole of the length measurement shaft seat, one end of the first screw rod is embedded and installed on one side face of the first baffle, the first rotary handle is fixedly installed on the end face of the other end of the first screw rod, pulley grooves are symmetrically formed in the bottom of the first baffle, the first pulley is arranged in the pulley grooves of the first baffle, and the bottom of the first pulley is in contact with the groove bottom of the length measurement device groove of the table top;

by adopting the technical scheme, the first control screw rod is moved by rotating the rotating handle, and the first pulley guarantees the feeding stability of the first baffle plate.

The technical scheme of the utility model is further improved as follows: the external thread of the second screw rod is meshed with the internal thread of the screw rod hole of the depth cutting control shaft seat, one end of the second screw rod is embedded and installed on one side face of the second baffle, the second rotating handle is fixedly installed on the end face of the other end of the second screw rod, pulley grooves are symmetrically formed in the bottom of the second baffle, the second pulley is arranged in the pulley grooves of the second baffle, and the bottom of the second pulley is in contact with the groove bottom of the depth cutting control device groove of the table top;

by adopting the technical scheme, the second control screw rod is controlled to move by rotating the rotating handle, and the second pulley guarantees the feeding stability of the second baffle plate.

The technical scheme of the utility model is further improved as follows: the screw rod III is embedded in a threaded hole of the table top, an external thread of the screw rod III is in meshed connection with an internal thread of the threaded hole of the table top, the positioning rod I is embedded in a positioning hole of the table top, the baffle plate III is fixedly arranged on one end face of the positioning rod I, the rotating handle III is fixedly arranged on one end face of the screw rod III, the rotating handle III is embedded on the outer surface of the baffle plate III, the push plate is fixedly arranged on the top of the baffle plate III, the lower surface of the push plate can be in contact with the upper surface of the table top, a through blade groove is formed in the top of the push plate, and groove edges on two sides of the blade groove can be attached to groove edges of a chip collecting groove of the table top;

by adopting the technical scheme, the three control screws of the rotating handle are rotated to move, the positioning rod ensures that the baffle III cannot rotate along with the rotation of the screws, and the blade groove in the pushing plate avoids the blade, so that the plate can be pushed to complete cutting operation.

The technical scheme of the utility model is further improved as follows: the four screw rods are embedded into screw rod holes of the first clamping device shaft seat and the second clamping device shaft seat, external threads of the four screw rods are in meshed connection with internal threads of the screw rod holes of the second clamping device shaft seat, the second positioning rod is embedded into positioning holes of the first clamping device shaft seat and the second clamping device shaft seat, the fourth baffle is fixedly arranged on one end face of the second positioning rod, the fourth rotating handle is fixedly arranged on one end face of the fourth screw rod, the fourth rotating handle is embedded into the outer surface of the fourth baffle, the fourth clamping plate is fixedly arranged at the top of the fourth baffle, and the lower surface of the fourth clamping plate can be attached to the upper surface of the table top;

by adopting the technical scheme, the four control screws are moved by rotating the rotating handle, the second positioning rod ensures that the fourth baffle cannot rotate along with the rotation of the fourth screw, the clamping plate and the baffle clamp the plate one by one, and the phenomenon of movement during cutting is avoided.

The technical scheme of the utility model is further improved as follows: the cutting device comprises a cutting machine frame, an electric cutting machine, a protective cover and a blade, wherein the cutting machine frame is fixedly arranged on the right side of the top of the table top, the electric cutting machine is fixedly arranged at the bottom of a cross beam of the cutting machine frame, the protective cover is fixedly arranged on the end face where the output end of the protective cover is positioned, the blade is detachably sleeved on the output end of the electric cutting machine, the blade is arranged in an inner cavity of the protective cover, and the blade is arranged right above a chip collecting groove of the table top;

by adopting the technical scheme, the protection cover avoids waste scraps from splashing, and the blade can be replaced as required.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:

1. the utility model provides a fixed-length cutting device for a building material plate, which can quickly determine the cutting position and the cutting depth of the plate by using a scale mark through a length measuring device and a cutting depth control device, does not need manual scribing and positioning, and has high working efficiency.

2. The utility model provides a fixed-length cutting device for a building material plate, which avoids the situation that a worker approaches a cutting machine too much through a push plate device, reduces potential safety hazards, and improves the cutting quality by controlling the feeding quantity to be uniform and stable in a plate stepping mode by shaking a rotating handle.

3. The utility model provides a fixed-length cutting device for a building material plate, which controls clamping force in a screw manner, prevents the plate from moving, prevents the plate from being excessively pressed, and ensures cutting quality.

Drawings

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

FIG. 2 is a schematic diagram of the feeding stage structure of the present utility model;

FIG. 3 is a schematic diagram of the feed stage of the present utility model;

FIG. 4 is a schematic view of the bottom structure of the present utility model;

fig. 5 is a schematic structural view of a depth control device according to the present utility model.

In the figure: 1. a device body; 2. a length measuring device; 3. a depth control device; 4. a push plate device; 5. a clamping device; 6. a cutting device; 7. a sheet material; 11. a table top; 12. a table frame; 13. a first shaft seat of the clamping device; 14. a second shaft seat of the clamping device; 15. a length measuring shaft seat; 16. a depth cutting control shaft seat; 21. a first screw; 22. a first baffle; 23. a first rotating handle; 24. a pulley I; 31. a second screw; 32. a second baffle; 33. a second rotating handle; 34. a second pulley; 41. a screw III; 42. a positioning rod I; 43. a third baffle; 44. a rotating handle III; 45. a push plate; 51. a screw rod IV; 52. a positioning rod II; 53. a baffle IV; 54. a turning handle IV; 55. a clamping plate; 61. a cutter frame; 62. an electric cutter; 63. a protective cover; 64. a blade.

Detailed Description

The utility model is further illustrated by the following examples:

example 1

As shown in fig. 1-4, the utility model provides a fixed length cutting device for a building material plate, which comprises a device main body 1, wherein the device main body 1 comprises a table top 11, a table frame 12, a first clamping device shaft seat 13, a second clamping device shaft seat 14, a length measuring shaft seat 15 and a depth cutting control shaft seat 16, the upper surface of the table top 11 is symmetrically provided with a length measuring device groove and a depth cutting control groove respectively, the edges of the length measuring device groove and the depth cutting control groove of the table top 11 are provided with scale marks, the upper surface of the table top 11 is provided with a through chip collecting groove, the inner wall of the chip collecting groove of the table top 11 is provided with a threaded hole, the two sides of the threaded hole of the table top 11 are symmetrically provided with positioning holes, the table frame 12 is fixedly arranged at the bottom of the table top 11, the clamping device shaft seat I13 is fixedly arranged at the rear side of the bottom of the table top 11, the clamping device shaft seat II 14 is fixedly arranged at the front side of the bottom of the table top 11, screw holes and positioning holes are formed in the outer surface of the clamping device shaft seat I13 at equal intervals, through screw holes and positioning holes are formed in the outer surface of the clamping device shaft seat II 14 at equal intervals, the screw holes and the positioning holes of the clamping device shaft seat I13 and the clamping device shaft seat II 14 are positioned on the same axis, the length measuring shaft seat 15 is fixedly arranged at the rear side of the top of the table top 11, the depth cutting control shaft seat 16 is fixedly arranged at the right side of the top of the table top 11, the through screw holes are formed in the outer surfaces of the length measuring shaft seat 15 and the depth cutting control shaft seat 16, and chips can fall into the lower part of the table top 11 from a chip collecting groove, so that the chip collecting and cleaning are convenient;

cutting device 6 is fixedly installed on one side of the top of mesa 11, the top of mesa 11 is provided with panel 7, cutting device 6 is including cutting frame 61, electric cutter 62, protection casing 63 and blade 64, cutting frame 61 fixed mounting is on the top right side of mesa 11, electric cutter 62 fixed mounting is in the bottom of the crossbeam of cutting frame 61, protection casing 63 fixed mounting is on the terminal surface that the output of protection casing 63 is located, blade 64 detachable cover is established on electric cutter 62's output, blade 64 sets up in the inner chamber of protection casing 63, blade 64 sets up directly over the chip collecting vat of mesa 11, protection casing 63 has avoided the sweeps to splash, blade 64 can be changed as required.

Example 2

As shown in fig. 1-5, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the top of the table top 11 is provided with a length measuring device 2, the length measuring device 2 comprises a first screw rod 21, a first baffle plate 22, a first rotating handle 23 and a first pulley 24, the first screw rod 21 is embedded and installed in a shaft hole of the length measuring shaft seat 15, the external thread of the first screw rod 21 is meshed and connected with the internal thread of the screw hole of the length measuring shaft seat 15, one end of the first screw rod 21 is embedded and installed on one side surface of the first baffle plate 22, the first rotating handle 23 is fixedly installed on the other end surface of the first screw rod 21, pulley grooves are symmetrically formed in the bottom of the first baffle plate 22, the first pulley 24 is arranged in the pulley grooves of the first baffle plate 22, the bottom of the first pulley 24 is in contact with the bottom of the length measuring device groove of the table top 11, the first pulley 24 is controlled to move by rotating the first screw rod 21, and the first pulley 24 ensures the feeding stability of the first baffle plate 22;

the top of mesa 11 is provided with the depth of cut controlling means 3, depth of cut controlling means 3 is including screw rod two 31, baffle two 32, change handle two 33 and pulley two 34, screw rod two 31 embedding is installed in the shaft hole of depth of cut control axle bed 16, the external screw thread of screw rod two 31 is connected with the internal screw thread meshing in the screw rod hole of depth of cut control axle bed 16, one end embedding of screw rod two 31 is installed on the side of baffle two 32, change handle two 33 fixed mounting is on the other end terminal surface of screw rod two 31, the pulley groove has been seted up to the bottom symmetry of baffle two 32, pulley two 34 sets up in the pulley groove of baffle two 32, the bottom of pulley two 34 and the depth of cut controlling means groove bottom of mesa 11 contact, move through rotating change handle two 33 control screw rod two 31, the stability of baffle two 32 feeding has been guaranteed to pulley two 34.

Example 3

As shown in fig. 1-5, on the basis of embodiments 1-2, the present utility model provides a technical solution: preferably, a pushing plate device 4 is arranged on one side surface of the table top 11, the pushing plate device 4 comprises a screw rod III 41, a positioning rod I42, a baffle III 43, a rotating handle III 44 and a pushing plate 45, the screw rod III 41 is embedded and installed on the side surface of the table top 11, the screw rod III 41 is embedded and installed in a threaded hole of the table top 11, the external thread of the screw rod III 41 is meshed and connected with the internal thread of the threaded hole of the table top 11, the positioning rod I42 is embedded and installed in a positioning hole of the table top 11, the baffle III 43 is fixedly installed on one end surface of the positioning rod I42, the rotating handle III 44 is fixedly installed on one end surface of the screw rod III 41, the rotating handle III 44 is embedded and installed on the outer surface of the baffle III 43, the pushing plate 45 is fixedly installed on the top of the baffle III 43, the lower surface of the pushing plate 45 can be contacted with the upper surface of the table top 11, the top of the pushing plate 45 is provided with a through blade groove, the two side groove edges of the blade groove can be jointed with the chip collecting groove edge of the table top 11, the screw rod III 44 is controlled to move by rotating the baffle III 44, the positioning rod I42 ensures that the baffle III 43 can not rotate along with the rotation of the screw rod III 41, and the blade 45 can completely push the blade 7;

the bottom of the table top 11 is provided with a clamping device 5, the clamping device 5 comprises a screw rod IV 51, a positioning rod IV 52, a baffle IV 53, a rotating handle IV 54 and a clamping plate 55, the screw rod IV 51 is embedded and installed in the shaft holes of the clamping device shaft seat I13 and the clamping device shaft seat II 14, the screw rod IV 51 is embedded and installed in the screw rod holes of the clamping device shaft seat I13 and the clamping device shaft seat II 14, the external threads of the screw rod IV 51 are meshed and connected with the internal threads of the screw rod holes of the clamping device shaft seat II 14, the positioning rod IV 52 is embedded and installed in the positioning holes of the clamping device shaft seat I13 and the clamping device shaft seat II 14, the baffle IV 53 is fixedly installed on one end face of the positioning rod IV 52, the rotating handle IV 54 is fixedly installed on one end face of the screw rod IV 51, the rotating handle IV 54 is embedded and installed on the outer face of the baffle IV 53, the clamping plate IV 55 is fixedly installed on the top of the baffle IV 53, the lower surface of the clamping plate IV 55 can be attached to the upper surface of the table top 11, the screw rod IV 51 is controlled to move through the rotating handle IV 54, the positioning rod IV 52 ensures that the baffle IV 53 cannot rotate along with the rotation of the screw rod IV 51, and the baffle IV 55 and the plate IV can not rotate along with the rotation of the screw rod IV 51, and the plate IV 55 is clamped by the baffle IV, and the plate IV is prevented from being clamped by the baffle 7 when cutting plates 7.

The working principle of the fixed-length cutting equipment for the building material plate is specifically described below.

As shown in fig. 1-5, according to the size and material of the plate to be processed, a corresponding blade 64 is installed, a rotating handle one 23 controls the screw one 21 to be screwed in, the screw one 21 drives the baffle one 22 to move, the final position of the baffle one 22 is determined according to the scale mark of the groove edge, a rotating handle two 33 controls the screw two 31 to be screwed in, the screw two 31 drives the baffle two 32 to move, the final position of the baffle two 32 is determined according to the scale mark of the groove edge, the plate 7 is placed on the edge of the table top 11, a rotating handle four 54 controls the screw four 51 to be screwed in, the screw four 51 drives the baffle four 53 to move, a clamping plate 55 at the top of the baffle four 53 clamps the plate 7 together with the baffle one 22, a rotating handle three 44 controls the screw three 41 to be screwed in, the screw three 41 drives the baffle three 43 to move, the push plate 45 at the top of the baffle three 43 pushes the plate 7 to step, the blade 64 cuts the plate 7 until the plate contacts the baffle two 32, and a specified cutting depth is achieved.

The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims (7)

1. The utility model provides a material board fixed length cuts equipment for building, includes device main part (1), device main part (1) is including mesa (11), table frame (12), clamping device axle bed one (13), clamping device axle bed two (14), length measurement axle bed (15) and cutting depth control axle bed (16), the top one side fixed mounting of mesa (11) has cutting device (6), the top of mesa (11) is provided with panel (7), its characterized in that: the top of the table top (11) is provided with a length measuring device (2), the top of the table top (11) is provided with a depth cutting control device (3), one side surface of the table top (11) is provided with a push plate device (4), and the bottom of the table top (11) is provided with a clamping device (5);

the length measuring device (2) comprises a first screw rod (21), a first baffle plate (22), a first rotating handle (23) and a first pulley (24), wherein the first screw rod (21) is embedded and installed in a shaft hole of the length measuring shaft seat (15);

the depth cutting control device (3) comprises a second screw rod (31), a second baffle (32), a second rotating handle (33) and a second pulley (34), wherein the second screw rod (31) is embedded and installed in a shaft hole of the depth cutting control shaft seat (16);

the pushing plate device (4) comprises a screw rod III (41), a positioning rod I (42), a baffle III (43), a rotating handle III (44) and a pushing plate (45), wherein the screw rod III (41) is embedded and installed on the side surface of the table top (11);

the clamping device (5) comprises a screw rod IV (51), a positioning rod II (52), a baffle IV (53), a rotating handle IV (54) and a clamping plate (55), wherein the screw rod IV (51) is embedded and installed in shaft holes of a clamping device shaft seat I (13) and a clamping device shaft seat II (14).

2. A sheet of building material fixed length cutoff device according to claim 1, wherein: the utility model discloses a length measuring device groove and cut deep control groove have been seted up to the upper surface of mesa (11) symmetry respectively, the length measuring device groove and the cut deep control groove limit of mesa (11) are provided with the scale mark, the chip collecting vat that link up has been seted up to the upper surface of mesa (11), threaded hole has been seted up on the chip collecting vat inner wall of mesa (11), the locating hole has been seted up to the screw hole bilateral symmetry of mesa (11), table frame (12) fixed mounting is in the bottom of mesa (11), clamping device axle bed one (13) fixed mounting is in the bottom rear side of mesa (11), clamping device axle bed two (14) fixed mounting is in the bottom front side of mesa (11), screw hole and locating hole have been seted up to the equidistant surface of clamping device axle bed one (13), screw hole and the locating hole of clamping device axle bed two (14) are in same axis, length measuring device axle bed one (15) fixed mounting is at the bottom front side of mesa (11), the length measuring axle bed one (16) is at the bottom front side of mesa (16), the length measuring device axle bed one (14) is fixed at the top of cut deep, the top of mesa (16).

3. A sheet of building material fixed length cutoff device according to claim 2, wherein: the external thread of screw rod one (21) is connected with the internal thread in the screw rod hole of length measurement axle bed (15) in a meshed manner, one end embedding of screw rod one (21) is installed on one side of baffle one (22), change handle one (23) fixed mounting on the other end terminal surface of screw rod one (21), pulley groove has been seted up to the bottom symmetry of baffle one (22), pulley one (24) set up in the pulley groove of baffle one (22), the bottom of pulley one (24) and the length measurement device groove bottom contact of mesa (11).

4. A sheet of building material fixed length cutoff device according to claim 2, wherein: the external thread of screw rod two (31) is connected with the internal thread meshing of the screw rod hole of the depth control axle bed (16), one end embedding of screw rod two (31) is installed on one side of baffle two (32), change two (33) fixed mounting on the other end terminal surface of screw rod two (31), pulley groove has been seted up to the bottom symmetry of baffle two (32), pulley two (34) set up in the pulley groove of baffle two (32), the bottom of pulley two (34) and the contact of the depth control device groove bottom of mesa (11).

5. A sheet of building material fixed length cutoff device according to claim 2, wherein: the screw rod is three (41) embedding is installed in the screw hole of mesa (11), the external screw thread of screw rod is three (41) is connected with the internal screw thread meshing of the screw hole of mesa (11), locating lever one (42) embedding is installed in the locating hole of mesa (11), baffle three (43) fixed mounting is on the one end terminal surface of locating lever one (42), turn round three (44) fixed mounting on the one end terminal surface of screw rod three (41), turn round three (44) embedding is installed on the surface of baffle three (43), push pedal (45) fixed mounting is at the top of baffle three (43), the lower surface of push pedal (45) can be with the upper surface contact of mesa (11), the blade groove of lining up has been seted up at the top of push pedal (45), the both sides groove limit of blade groove can laminate with the chip collecting groove limit of mesa (11).

6. A sheet of building material fixed length cutoff device according to claim 2, wherein: the four screw rods (51) are embedded and installed in screw rod holes of the first clamping device shaft seat (13) and the second clamping device shaft seat (14), external threads of the four screw rods (51) are connected with internal threads of the screw rod holes of the second clamping device shaft seat (14) in a meshed mode, the second positioning rods (52) are embedded and installed in positioning holes of the first clamping device shaft seat (13) and the second clamping device shaft seat (14), the fourth baffle plate (53) is fixedly installed on one end face of the second positioning rods (52), the fourth rotating handle (54) is fixedly installed on one end face of the fourth screw rod (51), the fourth rotating handle (54) is embedded and installed on the outer surface of the fourth baffle plate (53), the clamping plates (55) are fixedly installed at the top of the fourth baffle plate (53), and the lower surfaces of the fourth baffle plates (55) can be attached to the upper surfaces of the table tops (11).

7. A sheet of building material fixed length cutoff device according to claim 2, wherein: cutting device (6) are including cutting frame (61), electric cutter (62), protection casing (63) and blade (64), cutting frame (61) fixed mounting is on the top right side of mesa (11), electric cutter (62) fixed mounting is in the bottom of the crossbeam of cutting frame (61), protection casing (63) fixed mounting is on the terminal surface at the output place of protection casing (63), the cover is established on the output of electric cutter (62) to blade (64), blade (64) set up in the inner chamber of protection casing (63), blade (64) set up directly over the chip collecting vat of mesa (11).