CN112809535A

CN112809535A - Cutting device for hardware machining and cutting method thereof

Info

Publication number: CN112809535A
Application number: CN202011596762.4A
Authority: CN
Inventors: 侯茜; 冀鹏
Original assignee: Yan Xuelong
Current assignee: Guangdong weilishi Holding Group Co.,Ltd.
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-05-18
Anticipated expiration: 2040-12-29
Also published as: CN112809535B

Abstract

The invention relates to the technical field of hardware cutting devices, and discloses a cutting device for hardware processing and a cutting method thereof, wherein a steel pipe to be cut is clamped and fixed by an arc-shaped clamping block through the arrangement of a clamping spring, manual continuous clamping is not needed in the cutting process, time and labor are saved, the cutting risk is reduced, a bidirectional threaded rod is indirectly driven to rotate through a rotating turntable, a moving block drives a triangular table and a cutting machine body to mutually approach or separate under the action of a guide rod, so that a plurality of cutting devices are controlled to rapidly cut pipes with different sizes at the same time, through the arrangement of a driving motor, an air suction fan and the like, when the pipes cut by a grinding wheel on the cutting machine body are polluted by gas or dust such as metal powder and the like, the air suction fan sucks harmful substances in a protective cover into a waste gas treatment box through an air guide pipe and a connecting pipe for unified, effectively avoiding the pollution of dust or gas to the human body in the cutting process.

Description

Cutting device for hardware machining and cutting method thereof

Technical Field

The invention relates to the technical field of hardware cutting devices, in particular to a cutting device for hardware machining and a cutting method thereof.

Background

The traditional hardware products, also called small hardware, refer to five metals of gold, silver, copper, iron and tin, can be made into artworks or metal devices such as knives and swords through manual processing, the hardware of modern society is more extensive, such as hardware tools, hardware parts, daily hardware, building hardware, security articles and the like, most of the small hardware products are not final consumer goods, the history is advanced to the modern industrial society, the metal-hardware product industry is rapidly developed, the hardware industry plays an immeasurable role in national economic development, the hardware products also become an indispensable industrial link for industrial manufacturing, the hardware industry is developed at a very high speed, the most centralized markets in the traditional hardware industry are mainly centralized on the large plates of mechanical hardware, building hardware, decorative hardware and daily hardware, the traditional hardware products are single, many enterprises only make accessories and fittings for other manufacturing enterprises, the dependence on the manufacturing enterprises is strong, the reaction to market demands is slow, and in most of the existing hardware enterprises, the initial hardware needs to be processed basically, so that corresponding finished products are obtained, for example, pipes made of a series of materials such as steel pipes and the like mostly need to use hardware cutting equipment in the processing process.

Among the prior art, the pipe cutting device part simple structure among the hardware adopts the emery wheel dish to cut tubular product usually, for example: chinese patent CN111843550A discloses a cutting device for hardware products, which comprises a supporting device 1, wherein the supporting device 1 comprises a workbench 5, sliding grooves 6 are arranged on both sides of the upper surface of the workbench 5, a positioning block 11 is fixedly connected on the upper surface of the workbench 5, a positioning groove 20 is arranged in the middle of the upper surface of the workbench 5, a clamping device 2 is slidably connected in the middle of the upper surface of the supporting device 1, the clamping device 2 comprises two clamping pieces 7, positioning bolts 8 are respectively and threadedly connected in the middle of the upper surfaces of the two clamping pieces 7, one end of each positioning bolt 8 is fixedly connected with a clamping piece 14, one side of each clamping piece 7, which is opposite to the clamping piece 7, is provided with a clamping groove 13, one side of each positioning bolt 8 is fixedly connected with a support handle 9, the number of the support handles 9 is four, the four support handles 9 are distributed in a cross shape in the vertical direction, a screw rod 10 is clamped in the middle of, one end of a screw rod 10 is connected on a positioning block 11 in a penetrating manner, one end of the screw rod 10 is fixedly connected with a crank 12, the bottom of a clamping piece 7 is provided with a groove, the clamping piece 7 is connected with a supporting device 1 in a sliding manner through a sliding groove 6, the upper surface of the supporting device 1 is fixedly connected with a punching device 3, the punching device 3 comprises supporting columns 15, the number of the supporting columns 15 is four, the top ends of the four supporting columns 15 are fixedly connected with a placing plate 16, the upper surface of the placing plate 16 is connected with an electric push rod 17 in a clamping manner, the middle part of the lower surface of the electric push rod 17 is fixedly connected with a servo motor 18, the output end of the servo motor 18 is fixedly connected with a drill bit 19, the middle part of the upper surface of the supporting device 1 is fixedly connected with a protection device 4, the protection device 4 comprises two reset springs 21, the number, a guard member 24 is snapped into the inner bottom wall of the retaining groove 23.

However, in the above-mentioned background art, a clamping mechanism is not needed or clamping is unstable during cutting, so that deviation is easily caused due to vibration or accidental touch during cutting of the tube, and further the cutting effect of the tube is affected, and there is a certain risk to the cutting staff.

Therefore, we propose a cutting device for hardware processing to solve at least one of the problems in the background art described above.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the cutting device for hardware processing, which has the advantages of protecting operators and the like, and solves the problems of unstable clamping and operation danger during rapid cutting in the background technology.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a cutting device for hardware machining comprises a bottom plate, wherein a protective cover is arranged at the top of the bottom plate, a glass observation window is arranged on the outer side of the protective cover, two scale plates are fixedly connected to the top of the bottom plate, the positions of the two scale plates correspond to those of the glass observation window, a plurality of arc-shaped object carrying plates which are uniformly distributed are fixedly connected to the top of the bottom plate, the top of each arc-shaped object carrying plate which is uniformly distributed is provided with a same steel pipe to be cut, the outer wall of each steel pipe to be cut is in contact with the outer walls of the arc-shaped object carrying plates which are uniformly distributed, through holes are formed in two sides, away from each other, of the protective cover, the positions of the two through holes correspond to each other, two ends of each steel pipe to be cut in the protective cover penetrate through the two through holes respectively and extend out of one side of the two, the arc-shaped object carrying plates and the steel pipes to be cut which are uniformly distributed are positioned in the U-shaped frame.

Preferably, the perforation has been seted up at the top of U type frame, it has cup jointed the gag lever post to slide in the perforation, the both ends of gag lever post all run through the perforation, the both ends of gag lever post extend to respectively outside the fenestrate both sides, the top fixedly connected with top cap of gag lever post, the bottom fixedly connected with arc clamp splice of gag lever post, the slip cup joints clamping spring on the gag lever post, clamping spring's both ends fixed connection respectively in U type frame with on the arc clamp splice, the bottom side of arc clamp splice with the outer wall of waiting to cut the steel pipe contacts.

Preferably, two threaded rod fixed blocks of top fixedly connected with and two guide arm fixed blocks of bottom plate, two the shaft hole has all been seted up, two to one side that the threaded rod fixed block is close to each other the position in shaft hole is corresponding, two equal fixed the bearing that has cup jointed, two in the shaft hole equal fixed same two-way threaded rod that has cup jointed in the bearing, one of them one end of two-way threaded rod extends to one of them in the bearing, the other end of two-way threaded rod runs through the bearing and extends to one of them outside the bearing, extend to the three connecting rod that is the circumference and evenly arranges of one end fixedly connected with of the outer two-way threaded rod of bearing, it is three the same carousel of the equal fixedly connected with of.

Preferably, two equal fixedly connected with one same guide bar in one side that the guide arm fixed block is close to each other, two movable blocks have been cup jointed in the sliding on the guide bar, two threaded holes have all been seted up to one side of movable block, two equal spiro union in the threaded hole is same two-way threaded rod, the both ends of two-way threaded rod adopt the reverse thread setting, two the movable block is located respectively the both ends of two-way threaded rod, two the equal fixedly connected with base in top of movable block, two the equal fixedly connected with triangular platform in top of base.

Preferably, two all rotate on the triangular platform and be connected with the cutting machine body, two this internal emery wheel that all is equipped with of cutting machine, two the emery wheel all with the outer wall of waiting to cut the steel pipe contacts, two the equal fixedly connected with control lever in one side that the cutting machine body is close to each other, two the same slip telescopic link of the equal fixedly connected with of one end of control lever, the length of slip telescopic link can be followed two the interval of cutting machine body is adjusted.

Preferably, the fixed anti-skidding adapter sleeve that has cup jointed on the slip telescopic link, two arc holes have been seted up on the glass observation window, two run through two respectively on the top of control lever the arc hole extends to two respectively outside the arc hole, two all fixed the cup jointing has the annular cover on the control lever, two the annular cover is located two respectively the arc is downthehole.

Preferably, two equal two ripple heat-resistant cloths of fixedly connected with are sheathe in to the annular, four the one end of ripple heat-resistant cloth respectively with two the inner wall in arc hole is connected, the top fixedly connected with exhaust-gas treatment case of bottom plate, one side fixedly connected with connecting pipe of exhaust-gas treatment case, the other end fixedly connected with exhaust tube of connecting pipe, the three bracing piece that is the circumference and evenly arranges of fixedly connected with on the inner wall of exhaust tube.

Preferably, it is three the same fixed disk of the equal fixedly connected with of the other end of bracing piece, the fixed cover has cup jointed driving motor in the fixed disk, driving motor's one end is through its inside shaft coupling fixedly connected with input shaft, the one end fixedly connected with of input shaft fan of breathing in, the one end fixedly connected with air duct of exhaust tube.

Preferably, the outer wall of the protection casing is provided with a sealing hole, the other end of the air duct penetrates through the sealing hole and extends into the protection casing, the other end of the air duct extends into the protection casing, an air suction disc is fixedly connected to one end of the air duct in the protection casing, two fixing clamping blocks corresponding to each other in position are fixedly connected to the top of the bottom plate, and the outer walls of the two fixing clamping blocks are attached to the outer wall of the air suction pipe.

(III) advantageous effects

Compared with the prior art, the invention has the following beneficial effects:

1. this cutting device for hardware processing through waiting to cut the steel pipe along through-hole propelling movement to protection casing in, upwards mentions the hood, will wait to cut the steel pipe and place back on a plurality of arcs carry the thing board, unclamp the hood, under clamping spring's effect, wait to cut the steel pipe and be pressed from both sides tightly fixedly by the arc clamp splice to need not the manual centre gripping that lasts in the cutting process, labour saving and time saving has not only reduced the cutting risk.

2. This cutting device for hardware processing through observing the scale plate, rotates the carousel, then indirectly drives two-way threaded rod and rotates, under the effect of guide bar for two movable blocks with two-way threaded rod looks spiro union carry out horizontal upward movement, drive two triangular platform and two cutting machine bodies each other and be close to or keep away from, thereby realize many cutting equipment of simultaneous control and cut out unidimensional tubular product fast.

3. This cutting device for hardware processing through starting driving motor for the input shaft rotates, drives the fan of breathing in then and rotates, and when the abrasive wheel cutting tubular product on the cutting machine body produced gas such as metal powder or dust pollution, the fan of breathing in breathes in through the dish of breathing in of heavy-calibre with the harmful substance in the protection casing and inhales to the exhaust-gas treatment incasement through air duct and connecting pipe and unify the centralized processing, has effectively avoided causing dust or gas pollution to the human body among the cutting process.

4. This cutting device for hardware processing through the setting of annular cover and ripple heat-resistant cloth for operating personnel both can carry out the cutting operation through glass observation window control lever, can prevent again that the pollutant that produces from the arc hole discharge in the protection casing, has guaranteed that the suction fan can inhale the pollutant to the exhaust-gas treatment incasement most efficiently.

5. This cutting device for hardware processing through the setting of two fixed clamp splice for columniform exhaust tube is fixed, and then ensures that its inside driving motor can remain stable, thereby has ensured that the gaseous pollutants of protection casing etc. is stably inhaled to the exhaust-gas treatment incasement.

Drawings

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

FIG. 2 is a schematic perspective view of another embodiment of the present invention;

FIG. 3 is a schematic view of the internal perspective structure of the present invention;

FIG. 4 is a schematic view of an internal perspective structure from another perspective of the present invention;

FIG. 5 is a schematic perspective view of a U-shaped frame according to the present invention;

FIG. 6 is a schematic perspective view of a cutting machine body according to the present invention;

FIG. 7 is a perspective view of the dust-collecting structure of the present invention;

FIG. 8 is a partially cut-away perspective view of the exhaust tube of the present invention;

fig. 9 is a schematic perspective view of the protective cover of the present invention.

In the figure: 1. a base plate; 2. a protective cover; 3. a glass viewing window; 4. a scale plate; 5. an arc-shaped carrying plate; 6. a steel pipe to be cut; 7. a through hole; 8. a U-shaped frame; 9. a limiting rod; 10. a top cap; 11. an arc-shaped clamping block; 12. a clamping spring; 13. a threaded rod fixing block; 14. a guide rod fixing block; 15. a bidirectional threaded rod; 16. a connecting rod; 17. a turntable; 18. a guide bar; 19. a moving block; 20. a base; 21. a triangular table; 22. a cutter body; 23. a grinding wheel; 24. a control lever; 25. sliding the telescopic rod; 26. an anti-slip connecting sleeve; 27. an arc-shaped hole; 28. an annular sleeve; 29. a corrugated heat-resistant cloth; 30. a waste gas treatment tank; 31. a connecting pipe; 32. an air exhaust pipe; 33. a support bar; 34. fixing the disc; 35. a drive motor; 36. an input shaft; 37. an air suction fan; 38. an air duct; 39. sealing the hole; 40. a suction plate; 41. and fixing the clamping block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1: as shown in fig. 1-9, the embodiment discloses a cutting device for hardware processing, which comprises a bottom plate 1, a protective cover 2 is arranged at the top of the bottom plate 1, a glass observation window 3 is arranged at the outer side of the protective cover 2, two scale plates 4 are fixedly connected to the top of the bottom plate 1, the positions of the two scale plates 4 correspond to the positions of the glass observation window 3, a plurality of arc-shaped object carrying plates 5 which are uniformly distributed are fixedly connected to the top of the bottom plate 1, the same steel pipe 6 to be cut is arranged at the tops of the arc-shaped object carrying plates 5 which are uniformly distributed, the outer wall of the steel pipe 6 to be cut is contacted with the outer walls of the arc-shaped object carrying plates 5 which are uniformly distributed, through holes 7 are arranged at two sides of the protective cover 2 which are far away from each other, the positions of the two through holes 7 correspond, two ends of the steel pipe 6 to be cut in, the top fixedly connected with U type frame 8 of bottom plate 1, a plurality of arc that distribute evenly carry thing board 5 and wait to cut steel pipe 6 and all be located U type frame 8.

Further, in above-mentioned scheme, the perforation has been seted up at the top of U type frame 8, it has cup jointed gag lever post 9 to slide in the perforation, the perforation is all run through at the both ends of gag lever post 9, the both ends of gag lever post 9 extend to outside the fenestrate both sides respectively, the top fixedly connected with top cap 10 of gag lever post 9, the bottom fixedly connected with arc clamp splice 11 of gag lever post 9, slide on the gag lever post 9 and cup jointed clamping spring 12, clamping spring 12's both ends fixed connection is respectively on U type frame 8 and arc clamp splice 11, the bottom side of arc clamp splice 11 contacts with the outer wall of waiting to cut steel pipe 6, through the setting of arc clamp splice 11, the convenience is to waiting to cut steel pipe 6 to step up not unidimensional.

Further, in the above scheme, two threaded rod fixing blocks 13 and two guide rod fixing blocks 14 are fixedly connected to the top of the bottom plate 1, shaft holes are respectively formed in the mutually close sides of the two threaded rod fixing blocks 13, the positions of the two shaft holes correspond to each other, bearings are respectively and fixedly sleeved in the two shaft holes, the same bidirectional threaded rod 15 is respectively and fixedly sleeved in the two bearings, the both ends of two-way threaded rod 15 adopt reverse thread setting, and in one of them one end of two-way threaded rod 15 extended to one of them bearing, the other end of two-way threaded rod 15 run through the bearing and extend to one of them bearing outside, the three connecting rod 16 that is the even distribution of circumference of one end fixedly connected with of the two-way threaded rod 15 that extends to the bearing, the same carousel 17 of the equal fixedly connected with of the other end of three connecting rod 16, through the setting of carousel 17, conveniently rotate two-way threaded rod 15.

Further, in the above scheme, the same guide bar 18 of the equal fixedly connected with in one side that two guide arm fixed blocks 14 are close to each other, two movable blocks 19 have been cup jointed in the sliding on guide bar 18, threaded hole has all been seted up to one side of two movable blocks 19, equal spiro union has same two-way threaded rod 15 in two threaded hole, two movable blocks 19 are located the both ends of two-way threaded rod 15 respectively, the equal fixedly connected with base 20 in top of two movable blocks 19, the equal fixedly connected with triangular platform 21 in top of two bases 20, setting through movable block 19, make triangular platform 21 easily remove.

Further, in above-mentioned scheme, all rotate on two triangular platform 21 and be connected with cutting machine body 22, all be equipped with emery wheel 23 in two cutting machine bodies 22, two emery wheels 23 all contact with the outer wall of waiting to cut steel pipe 6, the equal fixedly connected with control lever 24 in one side that two cutting machine bodies 22 are close to each other, the same slip telescopic link 25 of the equal fixedly connected with of one end of two control levers 24, the length of slip telescopic link 25 can be adjusted along with the interval of two cutting machine bodies 22, setting through slip telescopic link 25 makes things convenient for operating personnel to control a plurality of cutting machine bodies 22 simultaneously.

Further, in above-mentioned scheme, the fixed anti-skidding adapter sleeve 26 that has cup jointed on the slip telescopic link 25, two arc holes 27 have been seted up on the glass observation window 3, two arc holes 27 are run through respectively and extend to outside two arc holes 27 on the top of two control levers 24, all fixed the cup jointing has annular cover 28 on two control levers 24, two annular covers 28 are located two arc holes 27 respectively, through the setting of arc hole 27, make things convenient for operating personnel to operate control lever 24, accomplish the cutting to tubular product then.

Further, in the above-mentioned scheme, two ripple heat-resistant cloth 29 of equal fixedly connected with on two annular cover 28, the one end of four ripple heat-resistant cloth 29 is connected with the inner wall of two arc holes 27 respectively, the top fixedly connected with exhaust-gas treatment case 30 of bottom plate 1, one side fixedly connected with connecting pipe 31 of exhaust-gas treatment case 30, the other end fixedly connected with exhaust tube 32 of connecting pipe 31, the three bracing piece 33 that are the even distribution of circumference of fixedly connected with on the inner wall of exhaust tube 32, through the setting of exhaust-gas treatment case 30, be convenient for carry out centralized processing to the metal dust etc. that produce in the cutting process.

Further, in the above scheme, the other ends of the three support rods 33 are fixedly connected with the same fixed disc 34, the fixed disc 34 is fixedly sleeved with the driving motor 35, one end of the driving motor 35 is fixedly connected with the input shaft 36 through an internal coupling thereof, one end of the input shaft 36 is fixedly connected with the air suction fan 37, one end of the air suction pipe 32 is fixedly connected with the air guide pipe 38, and through the arrangement of the air suction fan 37, waste gas and the like in the protection cover 2 can be conveniently sucked into the waste gas treatment box 30, so that harm to operators is prevented.

Further, in the above scheme, sealed hole 39 has been seted up to the outer wall of protection casing 2, the other end of air duct 38 runs through sealed hole 39 and extends to in the protection casing 2, the one end fixedly connected with of air duct 38 that extends to in the protection casing 2 breathes in the dish 40, two fixed clamp splice 41 that the position is corresponding in the top fixedly connected with of bottom plate 1, the outer wall of two fixed clamp splice 41 is laminated mutually with the outer wall of aspiration tube 32, setting through fixed clamp splice 41, make aspiration tube 32 more firm, the normal operating of driving motor 35 has been guaranteed.

When the steel pipe cutting machine is used, the steel pipe 6 to be cut is pushed into the protective cover 2 along the through hole 7, the top cap 10 is lifted upwards, the steel pipe 6 to be cut is placed on the arc-shaped object carrying plates 5, then the top cap 10 is loosened, and the steel pipe 6 to be cut is clamped and fixed by the arc-shaped clamping blocks 11 under the action of the clamping springs 12, so that manual continuous clamping in the cutting process is not needed, time and labor are saved, and the cutting risk is reduced.

Through observing scale plate 4, rotate carousel 17, then indirectly drive two-way threaded rod 15 and rotate, under the effect of guide bar 18 for two movable blocks 19 with 15 looks spiro unions of two-way threaded rod carry out the horizontal direction and move, drive two triangular platform 21 and two cutting machine bodies 22 each other and be close to or keep away from, thereby realize the many cutting equipment of simultaneous control and cut out not unidimensional tubular product fast.

Through starting driving motor 35 for input shaft 36 rotates, drives the fan 37 of breathing in then and rotates, and when grinding wheel 23 on cutting machine body 22 cut tubular product and produce gas such as metal powder or dust pollution, the fan 37 of breathing in inhales the harmful substance in the protection casing 2 to carry out unified centralized processing in exhaust-gas treatment case 30 through air duct 38 and connecting pipe 31 through the suction disc 40 of heavy-calibre, has effectively avoided causing dust or gas pollution to the human body among the cutting process.

Through the setting of annular cover 28 and ripple heat-resistant cloth 29 for operating personnel both can carry out cutting operation through glass observation window 3 control lever 24, can prevent again that the pollutant that produces from the arc hole 27 in the protection casing 2 from discharging, has guaranteed that the fan 37 of breathing in can inhale the pollutant to exhaust-gas treatment case 30 in the maximum efficiency.

Through the arrangement of the two fixing clamping blocks 41, the cylindrical exhaust pipe 32 is fixed, and the driving motor 35 inside the exhaust pipe is ensured to be stable, so that the polluted gas and the like in the protective cover 2 are ensured to be stably sucked into the exhaust gas treatment box 30.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cutting device for hardware processing, includes bottom plate (1), its characterized in that: the top of bottom plate (1) is equipped with protection casing (2), glass observation window (3) have been seted up in the outside of protection casing (2), two scale plate (4) of top fixedly connected with of bottom plate (1), two the position of scale plate (4) with the position of glass observation window (3) is corresponding, the top fixedly connected with of bottom plate (1) a plurality of arc that distribute evenly carry thing board (5), a plurality of distribution is even the top that arc carried thing board (5) all is equipped with same waiting to cut steel pipe (6), the outer wall that waits to cut steel pipe (6) and a plurality of distribution are even the outer wall that arc carried thing board (5) contacts, through-hole (7) have all been seted up to the both sides that protection casing (2) kept away from each other, two the position of through-hole (7) is corresponding, in protection casing (2) the both ends that wait to cut steel pipe (6) run through two respectively through-hole (7) and extend to two respectively the logical Outside one side in hole (7), the top fixedly connected with U type frame (8) of bottom plate (1), a plurality of distribution are even carry thing board (5) with wait to cut steel pipe (6) and all be located in U type frame (8), two all rotate on triangular platform (21) and be connected with cutting machine body (22), two all be equipped with emery wheel (23) in cutting machine body (22), two emery wheel (23) all with the outer wall of waiting to cut steel pipe (6) contacts, two the equal fixedly connected with control lever (24) in one side that cutting machine body (22) are close to each other, two the same slip telescopic link (25) of the equal fixedly connected with of one end of control lever (24), the length of slip telescopic link (25) can be along with two the interval of cutting machine body (22) is adjusted.

2. The cutting device for hardware processing as claimed in claim 1, wherein: the top of U type frame (8) has been seted up and has been perforated, it has cup jointed gag lever post (9) to slide in the perforation, the both ends of gag lever post (9) all run through the perforation, the both ends of gag lever post (9) extend to respectively outside the fenestrate both sides, the top fixedly connected with hood (10) of gag lever post (9), the bottom fixedly connected with arc clamp splice (11) of gag lever post (9), slide on gag lever post (9) and cup jointed clamping spring (12), the both ends of clamping spring (12) are fixed connection respectively U type frame (8) with on arc clamp splice (11), the bottom side of arc clamp splice (11) with the outer wall of waiting to cut steel pipe (6) contacts.

3. The cutting device for hardware processing according to claim 1 or 2, characterized in that: the top of the bottom plate (1) is fixedly connected with two threaded rod fixing blocks (13) and two guide rod fixing blocks (14), one sides of the two threaded rod fixing blocks (13) close to each other are respectively provided with a shaft hole, the positions of the two shaft holes correspond to each other, bearings are fixedly sleeved in the two shaft holes, the two bearings are respectively and fixedly sleeved with the same two-way threaded rod (15), two ends of the bidirectional threaded rod (15) are arranged by adopting reverse threads, one end of the bidirectional threaded rod (15) extends into one of the bearings, the other end of the bidirectional threaded rod (15) penetrates through the bearings and extends out of one of the bearings, extend to the one end fixedly connected with three connecting rod (16) that are the circumference and evenly arrange of two-way threaded rod (15) outside the bearing, it is three the same carousel (17) of the equal fixedly connected with of the other end of connecting rod (16).

4. The cutting device for hardware processing according to any one of claims 1 to 3, characterized in that: two equal fixedly connected with in one side that guide arm fixed block (14) are close to each other is same guide bar (18), sliding sleeve has two movable blocks (19) on guide bar (18), two threaded holes are all seted up to one side of movable block (19), two equal spiro union in the threaded hole is same two-way threaded rod (15), two movable block (19) are located respectively the both ends of two-way threaded rod (15), two equal fixedly connected with base (20) in top of movable block (19), two equal fixedly connected with triangular platform (21) in top of base (20).

5. The cutting device for hardware processing according to any one of claims 1 to 4, characterized in that: fixed anti-skidding adapter sleeve (26) have been cup jointed on slip telescopic link (25), two arc hole (27) have been seted up on glass observation window (3), two the top of control lever (24) runs through two respectively arc hole (27) extend to two respectively outside arc hole (27), two all fixed annular cover (28) have been cup jointed on control lever (24), two annular cover (28) are located two respectively in arc hole (27).

6. The cutting device for hardware processing of claim 5, wherein: two ripple heat-resistant cloth (29), four of equal fixedly connected with on annular cover (28) the one end of ripple heat-resistant cloth (29) respectively with two the inner wall of arc hole (27) is connected, the top fixedly connected with exhaust-gas treatment case (30) of bottom plate (1), one side fixedly connected with connecting pipe (31) of exhaust-gas treatment case (30), the other end fixedly connected with exhaust tube (32) of connecting pipe (31), three bracing piece (33) that are the circumference and evenly arrange of fixedly connected with on the inner wall of exhaust tube (32).

7. The cutting device for hardware processing of claim 5, wherein: it is three the same fixed disk (34) of the equal fixedly connected with of the other end of bracing piece (33), fixed cover has connect driving motor (35) in fixed disk (34), its inside shaft coupling fixedly connected with input shaft (36) is passed through to the one end of driving motor (35), the one end fixedly connected with of input shaft (36) inhales fan (37), the one end fixedly connected with air duct (38) of exhaust tube (32).

8. The cutting device for hardware processing as claimed in claim 1, wherein: sealed hole (39) have been seted up to the outer wall of protection casing (2), the other end of air duct (38) runs through sealed hole (39) and extend to in protection casing (2), extend to the one end fixedly connected with of air duct (38) in protection casing (2) coils (40) of breathing in, the corresponding fixed clamp splice (41) in two positions of top fixedly connected with of bottom plate (1), two the outer wall of fixed clamp splice (41) with the outer wall of aspiration tube (32) is laminated mutually.