CN212419899U - Sawing machine for subway and tunnel positive line protective airtight door production - Google Patents

Abstract

The utility model discloses a sawing machine of subway and tunnel positive line protection airtight door production, including supporting box, the setting is in the sawing device of supporting box top is still including setting up the material feeding unit who is used for supplementary raw materials business turn over of supporting box both sides, be provided with on the supporting box and be used for making the sawing device carries out pivoted rotating device, and sets up the clamping device who fixes is used for carrying out the raw materials of sawing device both sides, the sawing device sets up rotating device is last, rotating device with the supporting box is connected, material feeding unit with the supporting box is connected. The utility model discloses a material feeding unit's setting is convenient for carry out the sawing at oblique angle to the raw materials, has improved holistic practicality to the unloading of raw materials of being convenient for through rotating device's setting, and it is fixed to make the material clamp fix in the sawing process through clamping device's setting, has improved the quality of sawing.

Description

Sawing machine for subway and tunnel positive line protective airtight door production

Technical Field

The utility model relates to a protective airtight door production field especially relates to a sawing machine of subway and tunnel positive line protective airtight door production.

Background

The protective airtight door is arranged on the outermost side of the entrance and the exit, has two functions of blocking shock waves and isolating toxicants, and needs to cut and blank the frame according to the size of the entrance in the production process of the protective airtight door; present frame uses the sawing machine to go on and can only carry out vertical angle sawing more, carries out the pay-off through the manual work when the raw materials carries out the material loading more, and workman's amount of labour is big, and at the sawing in-process, only fixes raw materials one end, and raw materials vibratility is great, has influenced the quality of sawing, has caused the influence to production process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sawing machine of subway and tunnel positive line protection airtight door production just in order to solve above-mentioned problem, the utility model discloses a material feeding unit's setting is convenient for carry out the sawing at oblique angle to the raw materials to the last unloading of raw materials, has reduced artificial intensity of labour, is convenient for carry out the sawing at oblique angle to the raw materials through rotating device's setting, has improved holistic practicality, and it is fixed that the raw materials presss from both sides through clamping device's setting makes the sawing in-process, has improved the quality of sawing.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides a sawing machine of subway and production of tunnel positive line protection airtight door, includes supporting box, sets up the sawing device of supporting box top is still including setting up the material feeding unit who is used for supplementary raw materials business turn over of supporting box both sides, be provided with on the supporting box and be used for making the sawing device carries out pivoted rotating device, and sets up the clamping device who fixes is used for carrying out the raw materials of sawing device both sides, the sawing device sets up rotating device is last, rotating device with the supporting box is connected, material feeding unit with the supporting box is connected.

Further setting: the feeding device comprises a frame, the frame is arranged on two sides of the supporting box respectively, a roll shaft is arranged on the frame, the upper tangent plane of the roll shaft is equal to the clamping device in level, a fixing frame is arranged on the frame on one side, a first rotating roller is vertically arranged on the fixing frame, a second rotating roller is arranged on the front side of the first rotating roller and is mounted on a moving frame, a first servo motor is connected to the upper end of the second rotating roller, a screw rod and a polished rod are arranged on the moving frame, a second servo motor is arranged at the front end of the screw rod, the screw rod is in threaded connection with the moving frame, the moving frame is in sliding connection with the polished rod, the roll shaft is in rotating connection with the frame, and the second servo motor is in coupling connection with the screw rod.

According to the arrangement, the screw rod is driven to rotate by the second servo motor, so that the second rotating roller on the moving frame moves towards the first rotating roller to clamp the raw material, and then the second rotating roller is driven by the first servo motor to push the raw material to move towards the lower part of the sawing device.

Further setting: the feeding device comprises a frame, the frame is arranged on two sides of the supporting box respectively, a roll shaft is arranged on the frame, the upper tangent plane of the roll shaft is equal to the clamping device in level, a fixing frame is arranged on the frame on one side, a first rotating roller is vertically arranged on the fixing frame, a second rotating roller is arranged on the front side of the first rotating roller, the second rotating roller is arranged on a moving frame, a first servo motor is connected to the upper end of the second rotating roller, a polish rod is arranged on the moving frame, a first air cylinder is arranged at the front end of the moving frame, and the first air cylinder is fixed on the frame.

According to the arrangement, the first cylinder pushes the second rotary roller on the moving frame to move towards the first rotary roller to clamp the raw materials, and then the second rotary roller is driven by the first servo motor to push the raw materials to move towards the lower part of the sawing device.

Further setting: the sawing device comprises a sliding block, a lead screw and a guide pillar are mounted on the sliding block, the rear end of the lead screw is connected with a third servo motor through a gear box, a motor is arranged at the upper end of the sliding block, a rotating shaft is mounted on the lower side of the sliding block, one end of the rotating shaft is connected with a saw blade, the motor and the rotating shaft transmit power through a belt wheel, and the lead screw and the guide pillar are connected with the rotating device.

According to the arrangement, the motor drives the saw blade at one end of the rotating shaft to rotate at a high speed, and the third servo motor rotates through the transmission of the gear box, so that the screw rod drives the sliding block to move forwards to saw raw materials.

Further setting: rotating device includes the stationary mast, rotates the stand, install the hydraulic pressure post on the stationary mast, the hydraulic pressure post expansion end passes supporting box, and the lower extreme is provided with boss, first gear one side is provided with the second gear, the second gear is installed on the angle motor, the angle motor with the supporting box is connected, rotate the stand with spout sliding connection on the supporting box, first gear with through round pin hub connection between the stationary mast, first gear with the hydraulic pressure post key-type connection, the boss with the hydraulic pressure post welding.

So set up, through the hydraulic column extension, it is right the fixed stand becomes flexible, simultaneously first gear with the meshing of second gear, through the angle motor drives the rotation, makes the rotation stand is in rotate in the spout on the supporting box, adjust to needs angle.

Further setting: the clamping device comprises a supporting table, a fixing clamp is arranged on the supporting table, a movable clamp is arranged on the front side of the fixing clamp, a second air cylinder is arranged at the front end of the movable clamp, the fixing clamp is connected with the supporting table through a bolt, a sliding chute of the movable clamp is formed in the supporting table, the supporting table is connected with a supporting box through a bolt, and anti-skidding threads are arranged on opposite surfaces of the fixing clamp and the movable clamp.

So set up, through the second cylinder promotes the activity press from both sides to the fixation clamp removes, presss from both sides tight fixedly to the raw materials both ends, stability when improving the sawing raw materials.

Further setting: the first rotating roller is rotatably connected with the fixed frame, the second rotating roller is rotatably connected with the movable frame, and the first servo motor is connected with the second rotating roller through a coupler.

So set up, guarantee first commentaries on classics roller the rotation when the second changes the roller and presss from both sides tightly the raw materials is smooth and easy, promotes the raw materials and removes.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the feeding and discharging of the raw materials are facilitated through the feeding device, the labor intensity of workers is reduced, sawing at oblique angles is facilitated through the rotating device, the overall practicability is improved, the raw materials are clamped and fixed in the sawing process through the clamping device, and the sawing quality is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a first structural schematic diagram of an embodiment 1 of the sawing machine for producing the subway and tunnel positive line protective airtight door of the invention;

fig. 2 is a second structural schematic diagram of the sawing machine produced by the subway and tunnel positive line protective airtight door of the invention in the embodiment 1;

fig. 3 is a schematic front view of the structure of the sawing machine in embodiment 1 for producing the subway and tunnel positive line protective airtight door according to the present invention;

FIG. 4 is a schematic sectional view A-A of FIG. 3;

fig. 5 is a schematic top view of the sawing machine for producing the subway and tunnel positive line protective airtight door of the present invention in example 1;

fig. 6 is a schematic view of a partial structure of a feeding device in embodiment 1 of a sawing machine for producing subway and tunnel positive line protective airtight doors according to the present invention;

fig. 7 is a schematic view of a partial structure of a clamping device of a sawing machine for producing subway and tunnel positive line protective airtight doors according to the present invention;

fig. 8 is a schematic partial structural view of a sawing device of a sawing machine for producing subway and tunnel positive line protective airtight doors according to the present invention;

fig. 9 is a schematic structural diagram of an embodiment 2 of the sawing machine for producing the subway and tunnel positive line protective airtight door according to the present invention;

fig. 10 is a schematic view of a local structure of the feeding device of the sawing machine of the embodiment 2 for producing the subway and tunnel positive line protective airtight door of the present invention.

The reference numerals are explained below:

1. a support box; 2. a feeding device; 21. a frame; 22. a roll shaft; 23. a fixed mount; 24. a first rotating roller; 25. a movable frame; 26. a first servo motor; 27. a second rotating roller; 28. a screw; 29. a polish rod; 210. A second servo motor; 211. a first cylinder; 3. a sawing device; 31. a slider; 32. a lead screw; 33. A guide post; 34. an electric motor; 35. a third servo motor; 36. a rotating shaft; 37. a saw blade; 4. a rotating device; 41. a hydraulic column; 42. a boss; 43. a first gear; 44. a second gear; 45. an angle motor; 46. Fixing the upright post; 47. rotating the upright post; 5. a clamping device; 51. a support table; 52. a fixing clip; 53. a movable clamp; 54. a second cylinder.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be further explained with reference to the accompanying drawings:

example 1

As shown in fig. 1-8, a sawing machine for subway and tunnel main line protective airtight door production comprises a support box 1, a sawing device 3 arranged above the support box 1, and further comprises feeding devices 2 arranged on two sides of the support box 1 and used for assisting in feeding and discharging raw materials, wherein a rotating device 4 used for enabling the sawing device 3 to rotate and clamping devices 5 arranged on two sides of the sawing device 3 and used for fixing the raw materials are arranged on the supporting box 1, the sawing device 3 is arranged on the rotating device 4, the rotating device 4 is connected with the support box 1, and the feeding device 2 is connected with the support box 1.

Preferably: the feeding device 2 comprises a frame 21, the frame 21 is respectively arranged at two sides of the supporting box 1, a roll shaft 22 is arranged on the frame 21, the upper section of the roll shaft 22 is horizontally equal to the height of the clamping device 5, a fixed frame 23 is arranged on the frame 21 at one side, a first rotating roller 24 is vertically arranged on the fixed frame 23, a second rotating roller 27 is arranged at the front side of the first rotating roller 24, the second rotating roller 27 is arranged on a moving frame 25, a first servo motor 26 is connected to the upper end of the second rotating roller 27, a polished rod 29 is arranged on the moving frame 25, a first air cylinder 211 is arranged at the front end of the moving frame 25, the first air cylinder 211 is fixed on the frame 21, the second rotating roller 27 on the moving frame 25 is pushed by the first air cylinder 211 to move to the first rotating roller 24 to clamp the raw material, and then the second rotating roller 27 is driven by the first servo motor 26 to push the raw material to move; the sawing device 3 comprises a sliding block 31, a lead screw 32 and a guide post 33 are mounted on the sliding block 31, the rear end of the lead screw 32 is connected with a third servo motor 35 through a gear box, a motor 34 is arranged at the upper end of the sliding block 31, a rotating shaft 36 is mounted at the lower side of the sliding block 31, one end of the rotating shaft 36 is connected with a saw blade 37, power is transmitted between the motor 34 and the rotating shaft 36 through a belt wheel, the lead screw 32 and the guide post 33 are connected with a rotating device 4, the saw blade 37 at one end of the rotating shaft 36 is driven by the motor 34 to rotate at a high speed, and the third servo motor 35 drives the sliding block 31 to; the rotating device 4 comprises a fixed upright column 46 and a rotating upright column 47, wherein a hydraulic column 41 is installed on the fixed upright column 46, the movable end of the hydraulic column 41 penetrates through the support box 1, a boss 42 and a first gear 43 are arranged at the lower end of the hydraulic column 41, a second gear 44 is arranged on one side of the first gear 43 and is installed on an angle motor 45, the angle motor 45 is connected with the support box 1, the rotating upright column 47 is in sliding connection with a chute on the support box 1, the first gear 43 is connected with the fixed upright column 46 through a pin shaft, the first gear 43 is in key connection with the hydraulic column 41, the boss 42 is welded with the hydraulic column 41, the fixed upright column 46 is loosened by extending the hydraulic column 41, meanwhile, the first gear 43 is meshed with the second gear 44, and is driven to rotate through the angle motor 45, so that the rotating upright column 47 rotates in the chute on the support box 1 and is adjusted to; the clamping device 5 comprises a supporting table 51, a fixed clamp 52 is arranged on the supporting table 51, a movable clamp 53 is arranged on the front side of the fixed clamp 52, a second air cylinder 54 is arranged at the front end of the movable clamp 53, the fixed clamp 52 is in bolted connection with the supporting table 51, a sliding chute for the movable clamp 53 to slide is arranged on the supporting table 51, the supporting table 51 is in bolted connection with the supporting box 1, anti-slip grains are arranged on opposite surfaces of the fixed clamp 52 and the movable clamp 53, the movable clamp 53 is pushed by the second air cylinder 54 to move towards the fixed clamp 52, so that two ends of the raw material are clamped and fixed, and the stability of sawing the raw material is; the first rotating roller 24 is rotatably connected with the fixed frame 23, the second rotating roller 27 is rotatably connected with the movable frame 25, and the first servo motor 26 is connected with the second rotating roller 27 through a coupler, so that the first rotating roller 24 and the second rotating roller 27 are ensured to rotate smoothly when clamping raw materials, and the raw materials are pushed to move.

Example 2

As shown in fig. 7-10, a sawing machine for subway and tunnel main line protective airtight door production comprises a support box 1, a sawing device 3 arranged above the support box 1, and further comprises feeding devices 2 arranged on two sides of the support box 1 and used for assisting in feeding and discharging raw materials, wherein a rotating device 4 used for enabling the sawing device 3 to rotate and clamping devices 5 arranged on two sides of the sawing device 3 and used for fixing the raw materials are arranged on the supporting box 1, the sawing device 3 is arranged on the rotating device 4, the rotating device 4 is connected with the support box 1, and the feeding device 2 is connected with the support box 1.

Preferably: the feeding device 2 comprises a frame 21, the frame 21 is respectively arranged at two sides of the supporting box 1, a roll shaft 22 is arranged on the frame 21, the upper section of the roll shaft 22 is horizontally equal to the clamping device 5 in height, a fixed frame 23 is arranged on the frame 21 at one side, a first rotating roller 24 is vertically arranged on the fixed frame 23, a second rotating roller 27 is arranged at the front side of the first rotating roller 24, the second rotating roller 27 is arranged on a moving frame 25, a first servo motor 26 is connected at the upper end of the second rotating roller 27, a screw 28 and a polished rod 29 are arranged on the moving frame 25, a second servo motor 210 is arranged at the front end of the screw 28, the screw 28 is in threaded connection with the moving frame 25, the moving frame 25 is in sliding connection with the polished rod 29, the roll shaft 22 is in rotating connection with the frame 21, the second servo motor 210 is in coupling connection with the screw 28, the screw 28 is driven to rotate by the second servo motor 210, so that, the raw material is clamped, and then the second rotating roller 27 is driven by the first servo motor 26 to push the raw material to move below the sawing device 3; the sawing device 3 comprises a sliding block 31, a lead screw 32 and a guide post 33 are mounted on the sliding block 31, the rear end of the lead screw 32 is connected with a third servo motor 35 through a gear box, a motor 34 is arranged at the upper end of the sliding block 31, a rotating shaft 36 is mounted at the lower side of the sliding block 31, one end of the rotating shaft 36 is connected with a saw blade 37, power is transmitted between the motor 34 and the rotating shaft 36 through a belt wheel, the lead screw 32 and the guide post 33 are connected with a rotating device 4, the saw blade 37 at one end of the rotating shaft 36 is driven by the motor 34 to rotate at a high speed, and the third servo motor 35 drives the sliding block 31 to; the rotating device 4 comprises a fixed upright column 46 and a rotating upright column 47, wherein a hydraulic column 41 is installed on the fixed upright column 46, the movable end of the hydraulic column 41 penetrates through the support box 1, a boss 42 and a first gear 43 are arranged at the lower end of the hydraulic column 41, a second gear 44 is arranged on one side of the first gear 43 and is installed on an angle motor 45, the angle motor 45 is connected with the support box 1, the rotating upright column 47 is in sliding connection with a chute on the support box 1, the first gear 43 is connected with the fixed upright column 46 through a pin shaft, the first gear 43 is in key connection with the hydraulic column 41, the boss 42 is welded with the hydraulic column 41, the fixed upright column 46 is loosened by extending the hydraulic column 41, meanwhile, the first gear 43 is meshed with the second gear 44, and is driven to rotate through the angle motor 45, so that the rotating upright column 47 rotates in the chute on the support box 1 and is adjusted; the clamping device 5 comprises a supporting table 51, a fixed clamp 52 is arranged on the supporting table 51, a movable clamp 53 is arranged on the front side of the fixed clamp 52, a second air cylinder 54 is arranged at the front end of the movable clamp 53, the fixed clamp 52 is in bolted connection with the supporting table 51, a sliding chute for the movable clamp 53 to slide is arranged on the supporting table 51, the supporting table 51 is in bolted connection with the supporting box 1, anti-slip grains are arranged on opposite surfaces of the fixed clamp 52 and the movable clamp 53, the movable clamp 53 is pushed by the second air cylinder 54 to move towards the fixed clamp 52, so that two ends of the raw material are clamped and fixed, and the stability of sawing the raw material is; the first rotating roller 24 is rotatably connected with the fixed frame 23, the second rotating roller 27 is rotatably connected with the movable frame 25, and the first servo motor 26 is connected with the second rotating roller 27 through a coupler, so that the first rotating roller 24 and the second rotating roller 27 are ensured to rotate smoothly when clamping raw materials, and the raw materials are pushed to move.

The utility model discloses theory of operation and use flow: the raw material is placed on the roller shaft 22, the second servo motor 210 rotates to drive the moving frame 25 on the screw 28 to move towards the fixed frame 23, or the first air cylinder 211 pushes the moving frame 25 to move towards the fixed frame 23, so that the second rotating roller 27 and the first rotating roller 24 clamp the raw material, meanwhile, the first servo motor 26 drives the second rotating roller 27 to rotate, so that the raw material moves towards the sawing device 3, when the raw material moves to the position needing sawing, the second air cylinder 54 pushes the movable clamp 53 to move towards the fixed clamp 52, so as to clamp and fix the raw material, the saw blade 37 is driven to rotate by the motor 34, meanwhile, the sliding block 31 moves forwards under the rotation of the lead screw 32, so as to saw the raw material, when the raw material with inclination is needed, the first gear 43 is pushed by the hydraulic column 41 to be meshed with the second gear 44, so that the angle motor 45 drives the first gear 43 to rotate, so as to rotate the rotating column 47, the blade 37 is adjusted in pitch and then shortened by the hydraulic cylinder 41 to lock the position.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims (7)

1. The utility model provides a sawing machine of subway and tunnel positive line protective airtight door production, includes supporting box (1), sets up sawing device (3) of supporting box (1) top, its characterized in that: still including setting up supporting box (1) both sides be used for material feeding unit (2) of supplementary raw materials business turn over, be provided with on supporting box (1) and be used for making saw cutting device (3) carry out pivoted rotating device (4), and set up be in be used for of saw cutting device (3) both sides carry out fixed clamping device (5) to the raw materials, saw cutting device (3) set up on rotating device (4), rotating device (4) with supporting box (1) is connected, material feeding unit (2) with supporting box (1) is connected.

2. The sawing machine for the production of the protective airtight door for the subway and tunnel main line according to claim 1, which is characterized in that: the feeding device (2) comprises a frame (21), the frame (21) is respectively arranged on two sides of the supporting box (1), a roll shaft (22) is arranged on the frame (21), the upper tangent plane of the roll shaft (22) is horizontally equal to the clamping device (5), a fixing frame (23) is arranged on the frame (21) on one side, a first rotating roller (24) is vertically arranged on the fixing frame (23), a second rotating roller (27) is arranged on the front side of the first rotating roller (24), the second rotating roller (27) is arranged on a moving frame (25), a first servo motor (26) is connected to the upper end of the second rotating roller (27), a screw rod (28) and a polished rod (29) are arranged on the moving frame (25), a second servo motor (210) is arranged at the front end of the screw rod (28), and the moving frame (25) are in threaded connection, the moving frame (25) is connected with the polished rod (29) in a sliding mode, the roll shaft (22) is connected with the frame (21) in a rotating mode, and the second servo motor (210) is connected with the screw rod (28) in a coupling mode.

3. The sawing machine for the production of the protective airtight door for the subway and tunnel main line according to claim 1, which is characterized in that: the feeding device (2) comprises a frame (21), the frame (21) is arranged on two sides of the supporting box (1) respectively, a roll shaft (22) is arranged on the frame (21), the upper tangent plane of the roll shaft (22) is equal to the horizontal height of the clamping device (5), a fixing frame (23) is arranged on the frame (21) on one side, a first rotating roller (24) is vertically arranged on the fixing frame (23), a second rotating roller (27) is arranged on the front side of the first rotating roller (24), the second rotating roller (27) is arranged on a moving frame (25), a first servo motor (26) is connected to the upper end of the second rotating roller (27), a polished rod (29) is arranged on the moving frame (25), a first air cylinder (211) is arranged at the front end of the moving frame (25), and the first air cylinder (211) is fixed on the frame (21).

4. The sawing machine for the production of the protective airtight door for the subway and tunnel main line according to claim 1, which is characterized in that: the sawing device (3) comprises a sliding block (31), a lead screw (32) and a guide post (33) are mounted on the sliding block (31), the rear end of the lead screw (32) is connected with a third servo motor (35) through a gear box, a motor (34) is arranged at the upper end of the sliding block (31), a rotating shaft (36) is mounted on the lower side of the sliding block (31), one end of the rotating shaft (36) is connected with a saw blade (37), the motor (34) and the rotating shaft (36) transmit power through a belt wheel, and the lead screw (32) and the guide post (33) are connected with a rotating device (4).

5. The sawing machine for the production of the protective airtight door for the subway and tunnel main line according to claim 1, which is characterized in that: rotating device (4) are including fixed stand (46), rotation stand (47), install hydraulic pressure post (41) on fixed stand (46), hydraulic pressure post (41) expansion end passes support box (1), and the lower extreme is provided with boss (42), first gear (43) one side is provided with second gear (44), second gear (44) are installed on angle motor (45), angle motor (45) with support box (1) are connected, rotate stand (47) with spout sliding connection on support box (1), first gear (43) with through round pin hub connection between fixed stand (46), first gear (43) with hydraulic pressure post (41) key-type connection, boss (42) with hydraulic pressure post (41) welding.

6. The sawing machine for the production of the protective airtight door for the subway and tunnel main line according to claim 1, which is characterized in that: clamping device (5) are including brace table (51), be provided with fixation clamp (52) on brace table (51), fixation clamp (52) front side is provided with movable clamp (53), the activity is pressed from both sides (53) front end and is provided with second cylinder (54), fixation clamp (52) with brace table (51) bolted connection, be provided with on brace table (51) movable clamp (53) gliding spout, brace table (51) with support box (1) bolted connection, fixation clamp (52) all be provided with anti-skidding line on the activity clamp (53) opposite face.

7. The sawing machine for the production of the protective airtight door for the subway and tunnel main line according to the claim 2 or 3, characterized in that: first commentaries on classics roller (24) with mount (23) rotate to be connected, second commentaries on classics roller (27) with remove frame (25) and rotate to be connected, first servo motor (26) with roller (27) coupling joint is changeed to the second.

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