CN218224456U - Steel bar cutting machine convenient to location for construction - Google Patents

Abstract

The utility model discloses a steel bar cutting machine convenient for positioning for building construction, which structurally comprises a base and a fixed bottom plate, wherein a telescopic pulley component is arranged, a telescopic motor is started to drive a limiting block to slide up and down, so that a pulley can stretch out and draw back, and when the pulley stretches out, a moving device is convenient, and when the pulley shrinks, stability is provided for the device; by arranging the shaking material receiving assembly and the driving mechanism, when cut-off reinforcing steel bars are placed on the material receiving frame, the driving motor is started to drive the material receiving frame to slide left and right, so that the reinforcing steel bars are placed in the material receiving box regularly through the material openings, and a user can collect and transport the discharged reinforcing steel bars conveniently; through having set up dust absorption subassembly, when cutting off the reinforcing bar, start the dust absorption motor to make the dust absorption motor go into the dust absorption subassembly with the dust, thereby air-purifying collects the dust in the dust collecting tank, the periodic cleaning of being convenient for.

Description

Steel bar cutting machine convenient to location for construction

Technical Field

The utility model relates to a bar cutter technical field, concretely relates to bar cutter for construction convenient to location.

Background

The steel bar cutting machine is a tool used for cutting steel bars, is divided into a full-automatic steel bar cutting machine and a semi-automatic steel bar cutting machine, is mainly used for cutting steel bars in civil engineering at fixed length, is an essential device for the steel bar processing link, and has the advantages of light weight, less energy consumption, reliable work, high efficiency and the like compared with other cutting devices, thereby being widely adopted in the field of mechanical processing and playing an important role in the national economic construction process.

The steel bar cutting machine on the market at present is not only complicated in structure but also single in function, can produce the steel fillings during the cutting reinforcing bar, and the steel fillings can cause the injury to the human body, and need regularly arrange the reinforcing bar in the workbin at steel bar cutting machine unloading in-process at present, therefore expend the manpower, influence steel bar cutting machine's unloading efficiency, and present steel bar cutting machine is heavy, difficult removal.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, the steel bar cutting machine convenient to position for building construction is provided, and the problems that the steel bar cutting machine in the current market is complex in structure and single in function, steel scraps can be generated when cutting steel bars, the steel scraps can damage human bodies, the steel bars in a material box need to be integrated periodically in the blanking process of the steel bar cutting machine at present, manpower is consumed, the blanking efficiency of the steel bar cutting machine is influenced, and the current steel bar cutting machine is heavy and difficult to move are solved.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a bar cutter for construction convenient to location, including base and PMKD, base top left side is equipped with cuts off the motor, cut off motor output shaft and transmission structure one end fixed connection, the transmission structure other end and workstation fixed connection, the workstation right-hand member is fixed with cutting blade to the workstation back is connected with and is used for driving cutting blade pivoted output motor, PMKD is installed on base bottom right side, flexible loose pulley assembly is installed respectively in base bottom four corners, the shake material receiving assembly fixes on the PMKD top, dust absorption assembly sets up on cutting blade top right side, flexible loose pulley assembly is including connecting shell, first spout, flexible motor, pivot, last awl tooth, lower awl tooth, first connecting axle, connecting block, threaded rod, stopper, protective housing, second connecting axle and pulley, the connecting shell top is fixed mutually with the base bottom, connecting shell inner chamber below is equipped with first spout, flexible motor is installed to connecting shell left end top, flexible motor output shaft and pivot fixed connection.

Further, pivot right-hand member and last awl tooth centre of a circle department fixed connection, go up the awl tooth and mesh mutually with lower awl tooth insection, the first connecting axle of awl tooth centre of a circle department fixedly connected with down, first connecting axle top is rotated with the connecting block and is connected, the connecting block top is fixed mutually with connecting shell inner chamber top, first connecting axle bottom fixedly connected with threaded rod, threaded rod and the inboard threaded connection of stopper, stopper bottom fixedly connected with protective housing, protective housing bottom and second connecting axle both ends fixed connection, the second connecting axle runs through pulley centre of a circle department and is connected with the pulley rotation.

Further, the shake connects the material subassembly to include fixed bolster, spring, connect work or material rest, material mouth, actuating mechanism, connect workbin and handle, the fixed bolster bottom is fixed mutually with the PMKD top, the inboard four corners in fixed bolster top is fixed with the spring respectively, the spring other end respectively with connect work or material rest four corners fixed connection, it is equipped with the material mouth to connect the work or material rest top, actuating mechanism is installed to the fixed bolster right-hand member, the actuating mechanism left end is fixed with connecing the work or material rest right-hand member, it is equipped with and connects the workbin to connect the work or material rest bottom, connect workbin bottom and PMKD sliding connection, connect the workbin front end to install the handle.

Further, actuating mechanism includes first set casing, driving motor, connecting rod, chute pole, second spout, connecting plate and sliding block, first set casing is fixed at the fixed bolster right-hand member, driving motor is installed to first set casing inner chamber right-hand member, driving motor output shaft and connecting rod fixed connection, connecting rod left end fixedly connected with chute pole, the chute pole periphery is equipped with the second spout, the inboard and sliding block sliding connection of second spout, the sliding block top rotates with the connecting plate to be connected, the connecting plate left end is fixed mutually with the material receiving frame.

Further, the dust absorption subassembly includes second set casing, thermovent, dust absorption mouth, dust absorption motor, flabellum, dust filter screen, active carbon filter screen, photocatalyst airstrainer and dust collection box, the second set casing bottom is fixed on cutting blade top right side, the second set casing front end is equipped with the thermovent, the second set casing left end is equipped with the dust absorption mouth, the dust absorption motor is installed to second set casing inner chamber right-hand member, dust absorption motor output shaft and flabellum fixed connection, dust filter screen, active carbon filter screen and photocatalyst airstrainer are installed respectively in proper order to the second set casing inner chamber, second set casing bottom middle part can be dismantled with the dust collection box and be connected.

Furthermore, the inner side of the limiting block is provided with a thread matched with the threaded rod.

Furthermore, the cutting motor, the telescopic motor, the driving motor and the dust collection motor are all electrically connected with a power supply.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

1) A bar cutter for construction convenient to location through having set up flexible loose pulley assembly, through starting flexible motor, makes flexible motor drive stopper slide from top to bottom to it is flexible to make the pulley, stretches out the mobile device of being convenient for when the pulley, provides stability for the device when the pulley shrink.

2) A bar cutter for construction convenient to location connects material subassembly and actuating mechanism through having set up the shake, places when connecing the work or material rest when the reinforcing bar that cuts off places, opens driving motor, makes driving motor drive connect the work or material rest horizontal slip to make the reinforcing bar pass through the orderly placing of material mouth in connecing the material case, the person of facilitating the use is collecting and removing the transportation unloading reinforcing bar.

3) A bar cutter for construction convenient to location, through having set up the dust absorption subassembly, when cutting off the reinforcing bar, start the dust absorption motor to make the dust absorption motor go into the dust absorption subassembly with the dust, thereby air-purifying collects the dust in the dust collecting tank, the periodic cleaning of being convenient for.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic structural view of the telescopic pulley assembly of the present invention;

fig. 3 is a schematic structural view of the shaking material receiving assembly of the present invention;

fig. 4 is a schematic structural view of the driving mechanism of the present invention;

FIG. 5 is a schematic view of the dust collecting assembly of the present invention;

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

fig. 7 is the material receiving box of the utility model.

In the figure: the dust collecting device comprises a base-1, a cutting motor-2, a transmission structure-3, a workbench-4, a cutting blade-5, an output motor-51, a telescopic pulley assembly-6, a fixed bottom plate-7, a shaking material receiving assembly-8, a dust collecting assembly-9, a connecting shell-61, a first chute-62, a telescopic motor-63, a rotating shaft-64, an upper conical tooth-65, a lower conical tooth-66, a first connecting shaft-67, a connecting block-68, a threaded rod-69, a limiting block-610, a protecting shell-611, a second connecting shaft-612, a pulley-613, a fixed support-81, a spring-82, a material receiving frame-83, a material port-84, a driving mechanism-85, a material receiving box-86, a handle-87, a first fixed shell-851, a driving motor-852, a connecting rod-853, a chute rod-854, a second chute-855, a connecting plate-856, a sliding block-857, a second fixed shell-91, a heat dissipation port-92, a dust collecting port-93, a dust collecting motor-94, a fan blade-95, a catalyst-96-97, a dust collecting filter screen-98, and a light-dust collecting box.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and 2, the present invention provides a steel bar cutting machine for building construction, which is convenient for positioning: the steel bar cutting machine comprises a base 1 and a fixed bottom plate 7, wherein a cutting motor 2 is arranged on the left side of the top end of the base 1, the cutting motor 2 is fixed on the left side of the top end of the base 1, an output shaft of the cutting motor 2 is fixedly connected with one end of a transmission structure 3, the cutting motor 2 provides power for the transmission structure 3, the other end of the transmission structure 3 is fixedly connected with a workbench 4, the transmission structure 3 drives the workbench 4 to work, a cutting blade 5 is fixed at the right end of the workbench 4, an output motor 51 for driving the cutting blade 5 to rotate is connected to the back of the workbench 4, the workbench drives the cutting blade 5 to cut off steel bars, the fixed bottom plate 7 is arranged on the right side of the bottom end of the base 1, the fixed bottom plate 7 is fixed on the right side of the bottom end of the base 1, four corners of the bottom of the base 1 are respectively provided with a telescopic pulley assembly 6, the telescopic pulley assembly 6 provides supporting force for the base 1, and a shaking material receiving assembly 8 is fixed on the top end of the fixed bottom plate 7, the fixed bottom plate 7 provides supporting force for the shaking material receiving assembly 8, the dust collection assembly 9 is arranged on the right side of the top end of the cutting blade 5, the dust collection assembly 9 is fixed on the right side of the top end of the cutting blade 5, the telescopic pulley assembly 6 comprises a connecting shell 61, a first sliding groove 62, a telescopic motor 63, a rotating shaft 64, an upper conical tooth 65, a lower conical tooth 66, a first connecting shaft 67, a connecting block 68, a threaded rod 69, a limiting block 610, a protecting shell 611, a second connecting shaft 612 and a pulley 613, the top of the connecting shell 61 is fixed with the bottom end of the base 1, the base 1 provides a connecting area for the connecting shell 61, the first sliding groove 62 is arranged below the inner cavity of the connecting shell 61, the telescopic motor 63 is arranged above the left end of the connecting shell 61, the connecting shell 61 provides an installation area for the telescopic motor 63, and the output shaft of the telescopic motor 63 is fixedly connected with the rotating shaft 64, the telescopic motor 63 is used for providing rotating power for the rotating shaft 64, the right end of the rotating shaft 64 is fixedly connected with the center of the upper bevel gear 65, the rotating shaft 64 is used for driving the upper bevel gear 65 to rotate, the upper bevel gear 65 is meshed with the insection of the lower bevel gear 66, the upper bevel gear 65 is used for driving the lower bevel gear 66 to rotate, the center of the lower bevel gear 66 is fixedly connected with the first connecting shaft 67, the lower bevel gear 66 is used for driving the first connecting shaft 67 to rotate, the top end of the first connecting shaft 67 is rotatably connected with the connecting block 68, the connecting block 68 is used for providing a rotating area for the first connecting shaft 67, the top end of the connecting block 68 is fixed with the top end of the inner cavity of the connecting shell 61, the connecting shell 61 is used for providing a fixing area for the connecting block 68, the bottom of the first connecting shaft 67 is fixedly connected with the threaded rod 69, the threaded rod 69 is in threaded connection with the inner side of the limiting block 610, the limiting block 610 slides along the threaded rod 69, the bottom of the limiting block 610 is fixedly connected with the protective shell 611, the limiting block 610 drives the protective shell 611 to slide, the bottom of the protective shell 611 is fixedly connected with two ends of the second connecting shaft 612, the second connecting shaft 612 is fixed at the bottom of the protective shell 611, the second connecting shaft 612 penetrates through the circle center of the pulley 613 and is rotatably connected with the pulley 613, the second connecting shaft 612 rotates at the circle center of the pulley 613, threads matched with the threaded rod 69 are arranged on the inner side of the limiting block 610, the threaded rod 69 conveniently rotates on the inner side of the limiting block 610, the cutting motor 2, the telescopic motor 63, the driving motor 852 and the dust collection motor 94 are electrically connected with a power supply, and the power supply provides power for the cutting motor 2, the telescopic motor 63, the driving motor 852 and the dust collection motor 94.

Referring to fig. 3, the utility model provides a reinforcing bar cutter for construction convenient to location, shake and connect material subassembly 8 including fixed bolster 81, spring 82, connect material frame 83, material mouth 84, actuating mechanism 85, connect workbin 86 and handle 87, fixed bolster 81 bottom is fixed mutually with fixed baseplate 7 top, make fixed baseplate 7 provide the holding power for fixed bolster 81, fixed bolster 81 top inboard four corners is fixed with spring 82 respectively, make fixed bolster 81 provide the fixed area for spring 82, the spring 82 other end respectively with connect material frame 83 four corners fixed connection, make spring 82 provide reset power for receiving material frame 83, connect the material frame 83 top to be equipped with material mouth 84, make material mouth 84 fix in receiving material frame 83, fixed bolster 81 installs actuating mechanism 85 at the right-hand member, make fixed bolster 81 right-hand member provide the fixed area for actuating mechanism 85, actuating mechanism 85 left end is fixed mutually with receiving material frame 83, make actuating mechanism 85 provide vibration power for receiving material frame 83, it is equipped with and connects workbin 86 to connect workbin 83 bottom to make to connect workbin 86 provide the placing space for the reinforcing bar 86, connect workbin 86 bottom and fixed bolster 7 sliding connection, make the workbin 86 install in front handle 87, make things convenient for the workbin 86 to draw.

Please refer to fig. 4, the utility model provides a steel bar cutting machine for construction convenient to location, actuating mechanism 85 includes first set casing 851, driving motor 852, connecting rod 853, chute pole 854, second spout 855, connecting plate 856 and sliding block 857, first set casing 851 is fixed at the fixed bolster 81 right-hand member, make fixed bolster 81 provide for first set casing 851 and place the region, driving motor 852 is installed to first set casing 851 inner chamber right-hand member, make driving motor 852 fix at first set casing 851 inner chamber right-hand member, driving motor 852 output shaft and connecting rod 853 fixed connection, make driving motor 852 provide rotation power for connecting rod 853, connecting rod 853 left end fixedly connected with chute pole 854, make connecting rod 853 drive chute pole 854 and rotate, chute pole 854 periphery is equipped with second spout 855, make chute pole 854 drive second spout 855 rotate, second chute inboard and sliding block 857 sliding connection, make sliding block 857 slide in second chute inboard, sliding block 857 top and connecting plate 857 rotate and be connected, make sliding block 856 rotate connecting plate 855 at the top, make sliding block 855 drive left side slide connection with connecting plate 856 and connect material frame 83 mutually.

Please refer to fig. 5 and 6, the utility model provides a steel bar cutting machine for construction convenient to location, dust absorption assembly 9 includes second set casing 91, thermovent 92, dust absorption mouth 93, dust absorption motor 94, flabellum 95, dust filter 96, active carbon filter 97, photocatalyst airstrainer 98 and dust collection box 99, second set casing 91 bottom is fixed on cutting blade 5 top right side, make cutting blade 5 provide the fixed area for second set casing 91, second set casing 91 front end is equipped with thermovent 92, make thermovent 92 dispel the heat for second set casing 91, second set casing 91 left end is equipped with dust absorption mouth 93, make dust absorption mouth 93 fix in second set casing 91 left end, second set casing 91 inner chamber right-hand member installs dust absorption motor 94, make dust absorption motor 94 fix in second set casing 91 inner chamber right-hand member, make dust absorption motor 94 output shaft and 95 fixed connection, make dust absorption motor 94 provide rotation power for flabellum 95, second set casing 91 inner chamber installs dust filter 96 respectively in proper order, active carbon filter 97 and photocatalyst airstrainer 98, make dust absorption motor 96 and photocatalyst airstrainer 97, photocatalyst airstrainer 97 and dust collection box 99, the filter 99 is convenient for dismantling and installation.

The utility model provides a convenient-to-position steel bar cutting machine for building construction through improvement, and the working principle is as follows;

firstly, when the equipment is used, the device is firstly placed in a working area, and then the equipment is connected with an external power supply, so that the required electric energy can be provided for the work of the equipment;

secondly, by turning on the telescopic motor 63, the telescopic motor 63 drives the rotating shaft 64 to rotate, the rotating shaft 64 drives the upper bevel gear 65 to rotate, the upper bevel gear 65 drives the lower bevel gear 66 to rotate, the lower bevel gear 66 drives the first connecting shaft 67 to rotate, the first connecting shaft 67 drives the threaded rod 69 to rotate, the threaded rod 69 drives the limiting block 610 to slide upwards along the threaded rod 69, and the limiting block 610 drives the pulley 613 to slide upwards, so that the pulley 613 is contracted, and stability is provided for the equipment;

thirdly, the reinforcing steel bars are placed on the cutting blade 5, the output motor 51 is started, the output motor 51 drives the cutting blade 5 to cut off the reinforcing steel bars, meanwhile, the dust suction motor 94 is started, the dust suction motor 94 drives the fan blade 95 to rotate, the fan blade 95 sucks air into the inner cavity of the second fixed shell 91, the dust filter screen 96 filters out steel scraps, the steel scraps are placed in the dust collection box 99, the dust is adsorbed on the active carbon filter screen 97 through the active carbon filter screen 97, finally, the photocatalyst air filter screen 98 purifies the air, and finally the purified air is discharged through the heat dissipation port 92;

fourthly, when the blanking reinforcing steel bars are placed above the material receiving frame 83, the driving motor 852 is started again, so that the driving motor 852 drives the connecting rod 853 to rotate, the connecting rod 853 drives the chute rod 854 to rotate, the chute rod 854 drives the second chute 855 to rotate, the second chute 855 drives the sliding block 857 to slide, the sliding block 857 drives the connecting plate 856 to slide left and right, the connecting plate 856 drives the material receiving frame 83 to slide left and right, and the blanking reinforcing steel bars are placed in the material receiving box 86 orderly through the material port 84;

fifthly, by turning on the telescopic motor 63, the telescopic motor 63 drives the rotating shaft 64 to rotate, the rotating shaft 64 drives the upper bevel gear 65 to rotate, the upper bevel gear 65 drives the lower bevel gear 66 to rotate, the lower bevel gear 66 drives the first connecting shaft 67 to rotate, the first connecting shaft 67 drives the threaded rod 69 to rotate, the threaded rod 69 drives the limiting block 610 to slide downwards along the threaded rod 69, and the limiting block 610 drives the pulley 613 to extend out, so that the equipment is removed.

The utility model relates to a convenient location steel bar cutting machine for building construction, through optimizing and setting up flexible loose pulley assembly 6, through starting flexible motor 63, make flexible motor 63 drive stopper 610 and slide from top to bottom to make pulley 613 stretch out and draw back, when pulley 613 stretches out the convenient mobile device, when pulley 613 contracts to provide stability for the device; by optimally arranging the shaking material receiving assembly 8 and the driving mechanism 85, when the cut steel bars are placed on the material receiving frame 83, the driving motor 852 is started to drive the material receiving frame 83 to slide left and right, so that the steel bars are placed in the material receiving box 86 orderly through the material port 84, and a user can collect and move the discharged steel bars conveniently; by optimizing the arrangement of the dust suction assembly 9, when the reinforcing bar is cut off, the dust suction motor 94 is started, so that the dust suction motor 94 can introduce dust into the dust suction assembly 9, purify air, collect dust in the dust collection box 99 and facilitate periodic cleaning.

Claims (7)

1. A steel bar cutting machine convenient to locate for building construction comprises a base (1) and a fixed base plate (7), wherein a cutting motor (2) is arranged on the left side of the top end of the base (1), an output shaft of the cutting motor (2) is fixedly connected with one end of a transmission structure (3), the other end of the transmission structure (3) is fixedly connected with a workbench (4), a cutting blade (5) is fixed at the right end of the workbench (4), the back of the workbench (4) is connected with an output motor (51) used for driving the cutting blade (5) to rotate, and the fixed base plate (7) is installed on the right side of the bottom end of the base (1); the method is characterized in that: still include flexible loose pulley assembly (6), shake and connect material assembly (8) and dust absorption assembly (9), flexible loose pulley assembly (6) are installed respectively to base (1) bottom four corners, the shake connects material assembly (8) to fix on PMKD (7) top, dust absorption assembly (9) set up on cutting blade (5) top right side, flexible loose pulley assembly (6) are including connecting shell (61), first spout (62), flexible motor (63), pivot (64), last awl tooth (65), lower awl tooth (66), first connecting axle (67), connecting block (68), threaded rod (69), stopper (610), protective housing (611), second connecting axle (612) and pulley (613), connecting shell (61) top is fixed mutually with base (1) bottom, connecting shell (61) inner chamber below is equipped with first spout (62), flexible motor (63) are installed to connecting shell (61) left end top, flexible motor (63) output shaft and pivot (64) fixed connection.

2. The easy-to-position steel bar cutting machine for building construction of claim 1, wherein: pivot (64) right-hand member and last awl tooth (65) centre of a circle department fixed connection, go up awl tooth (65) and lower awl tooth (66) insection mesh mutually, awl tooth (66) centre of a circle department fixedly connected with first connecting axle (67) down, first connecting axle (67) top is rotated with connecting block (68) and is connected, connecting block (68) top is fixed mutually with connecting shell (61) inner chamber top, first connecting axle (67) bottom fixedly connected with threaded rod (69), threaded rod (69) and stopper (610) inboard threaded connection, stopper (610) bottom fixedly connected with protective housing (611), protective housing (611) bottom and second connecting axle (612) both ends fixed connection, second connecting axle (612) run through pulley (613) centre of a circle department and rotate with pulley (613) and be connected.

3. The easy-to-position steel bar cutting machine for building construction of claim 1, wherein: the shaking material receiving assembly (8) comprises a fixed support (81), a spring (82), a material receiving frame (83), a material port (84), a driving mechanism (85), a material receiving box (86) and a handle (87), the bottom of the fixed support (81) is fixed to the top of a fixed base plate (7), the four corners of the inner side of the top of the fixed support (81) are respectively fixed with the spring (82), the other end of the spring (82) is respectively fixedly connected with the four corners of the material receiving frame (83), the material receiving frame (83) is provided with the material port (84), the driving mechanism (85) is installed at the right end of the fixed support (81), the left end of the driving mechanism (85) is fixed to the right end of the material receiving frame (83), the bottom of the material receiving frame (83) is provided with the material receiving box (86), the bottom of the material receiving box (86) is connected with the fixed base plate (7) in a sliding mode, and the handle (87) is installed at the front end of the material receiving box (86).

4. The easy-to-position steel bar cutting machine for building construction of claim 3, wherein: actuating mechanism (85) include first set casing (851), driving motor (852), connecting rod (853), chute pole (854), second spout (855), connecting plate (856) and sliding block (857), first set casing (851) is fixed at fixed bolster (81) right-hand member, driving motor (852) are installed to first set casing (851) inner chamber right-hand member, driving motor (852) output shaft and connecting rod (853) fixed connection, connecting rod (853) left end fixedly connected with chute pole (854), chute pole (854) periphery is equipped with second spout (855), inboard and sliding block (857) sliding connection of second spout (855), sliding block (857) top is connected with connecting plate (856) rotation, connecting plate (856) left end is fixed mutually with connect material frame (83).

5. The easy-to-position steel bar cutting machine for building construction of claim 1, wherein: dust absorption subassembly (9) include second set casing (91), thermovent (92), dust absorption mouth (93), dust absorption motor (94), flabellum (95), dust filter screen (96), active carbon filter screen (97), photocatalyst air filter screen (98) and dust collection box (99), second set casing (91) bottom is fixed on cutting blade (5) top right side, second set casing (91) front end is equipped with thermovent (92), second set casing (91) left end is equipped with dust absorption mouth (93), dust absorption motor (94) are installed to second set casing (91) inner chamber right-hand member, dust absorption motor (94) output shaft and flabellum (95) fixed connection, dust filter screen (96), active carbon filter screen (97) and photocatalyst air filter screen (98) are installed respectively in proper order to second set casing (91) inner chamber, second set casing (91) bottom middle part can be dismantled with dust collection box (99) and be connected.

6. The easy-to-position steel bar cutting machine for building construction of claim 1, wherein: the inner side of the limiting block (610) is provided with a thread matched with the threaded rod (69).

7. The easy-to-position steel bar cutting machine for building construction of claim 1, wherein: the cutting motor (2), the telescopic motor (63), the driving motor (852) and the dust collection motor (94) are all electrically connected with a power supply.

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