CN205660032U - Metal tubular product die cutting machine constructs - Google Patents

Abstract

The utility model discloses a metal tubular product die cutting machine constructs, including a punch connected push rod, punch connected push rod upper end a conical main shaft connector has and be used for with the installation interface butt joint connected of punch press main shaft lower extreme, punch connected push rod lower extreme is provided with the pipe stamping cutter, the pipe stamping cutter lower extreme left and right sides has vertical two decurrent rectangle block's cutting part, the cutting sword that the cutting part lower extreme set up for the level along the fore -and -aft direction, two cutting parts just setting up the stamping channel who reserves among the clamping and positioning structure and both sides closely spaced in the stamping channel width, its characterized in that lies in two spaces between the cutting part and still is provided with a cutting briquetting, and cutting briquetting upper end is through moving back kind spring coupling on the pipe stamping cutter, and the lower surface did not exceed cutting part lower extreme cutting sword position downwards when the cutting briquetting did not receive external force. The utility model has the advantages of can realize the die -cut preparation to the tubular product sample better to can improve system appearance efficiency.

Description

A kind of metal pipe material punching mechanism

Technical field

This utility model relates to metal pipe material performance test sample sample making apparatus, the specifically a kind of gold in sample making apparatus Belong to tubing punching mechanism.

Background technology

Along with the application of metal pipe material is more and more extensive, client's quality to metal pipe material product, such as mechanical strength and resistance to The requirement of the performances such as corrosion is more and more higher, therefore before production process or tubing use, the most usually needs to enter tubing Row sampling detection, tests bio-film colonization performance etc. in its mechanical property, decay resistance and water environment.

But during tubing sampling detection, especially thin-wall metal pipe diameter pipes, if using whole tubing to carry out power Learn test and corrosion resistance test, not only reduce the efficiency of testing experiment, also result in bigger waste simultaneously.In order to improve effect Rate and minimizing waste, generally need to carry out performance survey by the sheet coupon that tubular product sample takes strip along the cutting of tubing axis direction Examination.At present, the main sample preparation using machining equipment to carry out operation and operation are as follows: first, metal thin wall pipe uses emery wheel to cut Sheet machine or band-saw machine tool cut, and tubular product sample cut into a joint tubular product sample of certain length, because of the sample under cutting End surfaces is jagged or out-of-flatness etc., then needs two facets of Vehicle Processing tubular product sample on lathe, to ensure two Cutting section is axially vertical with tubing, secondly, draws equally spaced parallel lines with marking pen in the axial direction at tubular product sample outer wall, Then, by this sample holder on planer, finally, with planer successively along the lower required sheet material examination of the parallel lines cutting finished Sample.There are following several point defects in above-mentioned existing tubing sampling technique: 1, tubular product sample clamping end face need to be got on the bus wheeled litter processed clip Holding end face, need again to clamp and position sample after Vehicle Processing one end face of a piece tubular product sample, operation is more complicated, sample preparation efficiency Relatively low.2, tubular product sample outer wall needs to draw parallel lines, clamping tube end face location, and needs examination after cutting one plies sample Sample clamps and positions sample again, and operation is more complicated, and sample preparation is inefficient.3, the processing of planer device plane carries out sheet coupon sampling Time, using the end face of tubing and the cutting position positioning tubing of ruling, the dimensional accuracy therefore taking sample processed is the highest.4, planer When device plane processing carries out sheet coupon sampling, for thin-wall pipe, often in the course of processing, sample deformation is serious, Hen Duoshi Can not direct sample under slicing, in addition it is also necessary to sheet coupon is separated by follow-up pincers worker clamp etc. with sample pipe, flattens the most again sample, Take time and effort.And sample coupon surface quality is under some influence, cause that test result is inaccurate affects sample accuracy of detection.5, should Set sample making course uses lathe kind many, and procedure of processing is loaded down with trivial details, takes time and effort.Artificial and equipment effect relatively costly.

In order to solve the problems referred to above, applicant considers to design a kind of die-cut sample making apparatus of metal pipe material sample, this equipment bag Including tubing detent mechanism and tubing punching mechanism, tubing detent mechanism includes the base being fixed on workbench, and base is provided with Clamping position structure is for realizing tubing horizontal location clamping along the longitudinal direction, and makes tubing be positioned upper table after clamping Punching press passage can be reserved above Middle face；Described tubing punching mechanism includes that a punch press connects push rod, and punch press connects push rod Upper end has the main shaft union joint of a taper and for being connected with the docking of the mounting interface of punch press main shaft lower end, and punch press connection pushes away Bar lower end is provided with tube stamping cutter, and the left and right sides, tube stamping cutter lower end has two rectangular block shape straight down Cutting part, cutting part lower end is horizontally disposed cutting edge along the longitudinal direction, and two cutting parts are just in clamping position structure The punching press passage reserved is arranged and both sides are smaller than punching press channel width.

Realize and utilize the die-cut of punch press to realize sample preparation as such, it is possible to install on punch press, but wherein it is desired to consider design What kind of metal pipe material punching mechanism is to be better achieved the die-cut preparation to tubular product sample, and the problem improving sample preparation efficiency.

Utility model content

For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is: how to provide a kind of energy Die-cut preparation to tubular product sample is enough better achieved, and the metal pipe material punching mechanism of sample preparation efficiency can be improved.

In order to solve above-mentioned technical problem, this utility model have employed following technical scheme:

A kind of metal pipe material punching mechanism, connects push rod including a punch press, and punch press connects push rod upper end and has a cone The main shaft union joint of shape and for and the mounting interface docking of punch press main shaft lower end be connected, punch press connection push rod lower end is provided with pipe Material punching tool, the left and right sides, tube stamping cutter lower end has the cutting part of two rectangular block shape straight down, cutting part Lower end is horizontally disposed cutting edge along the longitudinal direction, and two cutting parts are just to the punching press passage reserved in clamping position structure Arrange and both sides are smaller than punching press channel width；It is characterized in that, be additionally provided with in the space between two cutting parts One cutting briquetting, cutting briquetting upper end is connected on tube stamping cutter by moving back sample spring, when cutting briquetting is not by external force Lower surface is downwards beyond cutting edge position, cutting part lower end.

So, cutting briquetting and move back sample spring coordinate can play move back sample function facilitate die-cut after realize cut sample Move back sample；Additionally the more important thing is, cutting briquetting is not made beyond cutting edge position, cutting part lower end downwards by lower surface during external force In blanking process, before the cutting edge of cutting part touches tubing, cut briquetting first touch tubing upper surface and by moving back sample bullet Spring applies downward bigger pressure to cut tubing upper surface middle part, and this pressure and tubing sandwich pressure act on jointly Make tubing be cut position and can just form the stress substantially opposite with cut direction obliquely, it is possible to be preferably beneficial to Cutting edge breaks tubing and completes cutting, improves the smoothness of cutting.Meanwhile, this pressure can offset both sides, tubing top be cut During sample both sides are formed inwardly make a concerted effort, it is to avoid in cutting process, sample is bent deformation of arching upward, raising sample mass. As optimization, this cutting briquetting lower surface is for being horizontally disposed with so that sample upper center position is just exerted a force by it, it is ensured that above-mentioned effect Fruit becomes apparent from.More particularly, the application is the special construction of hollow circular due to cut tubing, in its inside Sky can not load, so during die cut, be easily caused tubing be crushed so that affect cutting smoothly and cut quality.And this In equipment, tubing is in before cutting up and down and is all applied with the state of thrust on the four direction of left and right, therefore in tubing circumference The thrust relative equilibrium being subject to, will not cause deformation, simultaneously due to the position of cutting during cutting during cutting because pressure is uneven The tubing both sides put all are applied with thrust to tubing, and it can be cut position with joint efforts and form outside internal stress tubing, When making to cut, cutting edge is easier to break tubing, therefore can complete cutting more swimmingly and improve sample mass.

As optimization, described cutting edge is the vertical side inside cutting part and is positioned at one of lower end outside cutting part tiltedly Face is crossing to be obtained.The structure that so this cutting edge is formed so that along with cutting edge breaks tube surfaces and gos deep into tubing during cutting During, cut sample both sides will not deform because of squeezed too, improves sample mass；This structure is more favorable for simultaneously Cutter upwards withdrawing after cutting.

As optimization, described tube stamping cutter includes the cutter body of a cuboid structure, also includes by fixing spiral shell Nail is arranged on the cutting blade of the cutter body left and right sides, and cutting blade bottom downwardly extends out cutter body and constitutes for cutting The cutting part cut, the cutting edge length of cutting part lower end is more than cut pipe diameter, and before and after cutter body, two lateral extents are more than Two lateral extents before and after clamping position structure；Be additionally provided with on side, both sides before and after described cutter body for fixing screw fit To realize the blade that cutting blade transposition is fixing is replaced fixing screw.

So, the punch press connection push rod upper end of this metal pipe material punching mechanism is installed to the mounting interface of punch press main shaft lower end Upper realization is to being positioned the die-cut of tubing section.It addition, the structure of this device can be also used for realizing tubing section from overall tubing Upper punch scales off, before specifically only need to being disassembled by cutting blade and being again fixed to cutter body by fixing screw fit On side, rear both sides, it becomes possible to realize overall tubing is intercepted along its length the rupturing operation of segment, first block acquisition tubing After segment, then cutting blade is adjusted to about cutter body position with die-cut acquisition tubular product sample, the most local Just the preparation of tubular product sample obtains, and drastically increases preparation efficiency.

As optimization, also including guiding mechanism, guiding mechanism includes two pieces of guide plates, and guide plate is vertically arranged to punching press and leads to Above both sides, road and be relatively fixed on tubing detent mechanism, two pieces of guide plate medial surface and tube stamping cutter left and right sides Coordinate the guiding realized tube stamping cutter.

In such manner, it is possible to rely on guiding mechanism to realize guiding to tube stamping cutter left and right directions, it is ensured that cutting smooth and easy Carry out.

Further, described tube stamping cutter left and right sides each and also set up between corresponding guide plate medial surface There is the first guide and limit structure cooperatively formed by the first corresponding vertical direction recess and the first vertical guiding projection.So, While the cooperation relying on the first vertical guiding projection and the first vertical direction recess realizes vertically guiding tube stamping cutter, Direction and left and right directions before and after tube stamping cutter are all achieved spacing, it is ensured that the smoothness of punching press and accuracy.Enter One step ground, the first guide and limit structure is arranged at lower end for forming the cutting blade outer surface of cutting part and corresponding guiding Between plate medial surface, be additionally provided with between the cutter body left and right sides of cutting blade inner surface and tube stamping cutter by The second guide and limit structure that the second corresponding vertical direction recess and the second vertical guiding projection cooperatively form；Second guides limit The profile of bit architecture is consistent with front and back position and the first guide and limit structure, and guide plate lower end is installed solid by guide plate mounting seat Being scheduled on tubing detent mechanism upper end, guide plate mounting seat includes a vertical mounting bracket and the mounting seat of level, installs Pedestal upper end and guide plate are fixed, and lower end and mounting seat are fixed, and mounting seat is provided with strip installing hole in left-right direction And it is pressed abd fixed on tubing detent mechanism upper end, the length etc. of described strip installing hole by installing screw through strip installing hole In or more than the thickness of cutting blade left and right directions.So, disassemble also from the left and right sides of cutter body when cutting blade Adjust to install and be fixed to before and after cutter body both sides and when the cut-out realizing pipe length direction, it is possible to unclamp installation spiral shell Nail, readjusts mounting seat right position so that guide plate medial surface completes wire with cutter body left and right sides again The cooperation of position limiting structure, it is ensured that when realizing the rupturing operation in pipe length direction, it is also possible to realize guide and limit, it is ensured that cut off Smooth and easy.

In sum, this utility model has can be better achieved the die-cut preparation to tubular product sample, and can improve The advantage of sample preparation efficiency.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of metal pipe material sample die cutting device that have employed this utility model structure.

Fig. 2 is independent tubing detent mechanism and the schematic diagram of tubing punching mechanism part-structure in Fig. 1.

Fig. 3 is the schematic diagram that Fig. 2 other direction can show device for discharging part-structure.

Detailed description of the invention

Below in conjunction with a kind of metal pipe material sample die cutting device that have employed this utility model structure and accompanying drawing thereof to this reality It is described in further detail with novel.

When being embodied as: as Figure 1-3, a kind of metal pipe material sample die cutting device, including punch press 1, punch press 1 has position In the workbench 2 of lower section, having and be positioned at punch press main shaft 3 vertically arranged above workbench 2, punch press main shaft 3 lower end has installation Interface, punch press main shaft 3 upper end is connected with punching press power set 4 and can be controlled descending realizing punching press, also includes that tubing is fixed Position mechanism and tubing punching mechanism, tubing detent mechanism includes the base 5 being fixed on workbench 1, base 5 is provided with clamping fixed Bit architecture is for realizing the clamping to tubing left and right directions and making tubing be horizontally positioned along the longitudinal direction, and tubing is determined Punching press passage can be reserved above upper surface middle part after the clamping of position；Described tubing punching mechanism includes that a punch press connects push rod, Punch press connects push rod upper end to be had the main shaft union joint 6 of a taper and docks phase for the mounting interface with punch press main shaft lower end Even, punch press connects push rod lower end and is provided with tube stamping cutter, and the left and right sides, tube stamping cutter lower end has straight down The cutting part of two rectangular block shape, cutting part lower end is horizontally disposed cutting edge along the longitudinal direction, and two cutting parts are the most right The punching press passage reserved in clamping position structure is arranged and both sides are smaller than punching press channel width.

So, before this equipment uses, tubing detent mechanism is to be mounted on work bench of punch press and just to punch press main shaft Position, the punch press of tubing punching mechanism connects push rod upper end and is installed on the mounting interface of punch press main shaft lower end.During tubing sampling, The tubing being truncated into segment the most along its length is installed in tubing detent mechanism along the longitudinal direction, then starts punching press power Device drives tubing punching mechanism undershoot, and tube material punching tool passes punching press passage so that it is cutting edge die-cut tubing top two Side also punches out tubular product sample.The most compared to the prior art, sample cutting is more efficient and convenient, and without to little segment pipe Two ends carry out end face processing, drastically increase sample preparation efficiency, are particularly suitable for carrying out pipe performance group contrast test Time, the batch of sample is produced.

Wherein, in described tubing detent mechanism, clamping position structure includes vertically being fixedly installed on above base between left and right Every a pair clamping position block 7 being oppositely arranged, clamping position block 7 opposite side sidewall being provided with chuck installation cavity, chuck is installed Intracavity is provided with V-clevis 8, and the side of V-clevis 8 opposite side is overall in the V-arrangement opened along the vertical direction so that two V-arrangements Form pipe clamping localization cavity between chuck opposite side, clamping position block is additionally provided with for regulating V-clevis level folder Tight clamping governor motion.

So, realizing the location to tubing by V-clevis, the tubing left and right sides is respectively arranged with the location of linear contact lay at two up and down Place so that it is position convenient and swift and improve reliability of positioning, can rely on clamping governor motion regulating guarantee locating clip during location Tight effect.

Wherein, described clamping governor motion includes horizontally disposed regulation bolt 9, and the cooperation that spins of regulation bolt 9 screw thread exists Being positioned at the screwed hole of chuck installation cavity position outside clamping position block, regulation bolt 9 is inner and clamping position block abuts and coordinates And outer end is provided with regulation handle.So there is simple in construction, advantage easy to adjust.

Wherein, described regulation bolt 9 the inner is provided with helical spring 23 and is supported by helical spring 23 and clamping position block 8 Connect cooperation.As such, it is possible to rely on elastic guarantee of helical spring preferably to position clamping；More importantly can be by simultaneously Adjustment to clamping force, its punched position after the size of pressure, and then regulation tubing pressurized when changing tubing location The size of self internal stress so that it is during cutting, cutting edge can preferably break tube surfaces, improves the smoothness of cutting and protects Card cuts out the complete effect of sample.

Wherein, every piece of clamping position block is respectively provided with four regulation bolts 9, outside regulation bolt position correspondence clamping position block Four, side, side corner location is arranged.

So, the balance of clamping force force regulation is more ensured, it is ensured that tubing is cut in the rectilinear direction of position everywhere Internal stress all compares equilibrium, it is ensured that cutting effect.

Wherein, the base between said two clamping position block is the most upwards fixedly installed a blanking cutting and supports platform 10, blanking cutting support platform 10 upper surface be provided with elastomeric layer for clamping position after tubing lower surface contact realization Supporting.So, when the blanking cutting support platform set up makes tubing held location, it is affected by left and right and direction, three, bottom Clamping make a concerted effort, this can make tubing upper surface be cut formation direction, position with joint efforts is the pretightning force opened above both sides, Thus making in blanking process, tubing is difficult to the deformation that is flattened, it is ensured that die-cut smooth and die-cut quality, it is ensured that obtain The quality of tubing exemplar.Can further during enforcement, described blanking cutting supports between platform and two, left and right clamping position block Leaving secondary punch gap 11, the cutting edge of this secondary punch gap 11 and tube stamping cutter is just to setting.So, tubing punching Push type broach tool downward die-cut time, can control to extend the descending stroke of tubing punching tool so that it is complete the examination of tubing upper face Continue traveling downwardly after sample is die-cut and tubing bottom is positioned at blanking cutting and support that the tubing above platform is the most die-cut to be opened, the most once rush Cut and can obtain up and down for four pieces of samples, drastically increase sample preparation efficiency, and stress when relying on tubing to position Balance can ensure that the complete effect of four pieces of samples, it is to avoid the impact that coupon results is caused by sample deformation, it is ensured that specimen test Reliability.

Wherein, in tube stamping cutter, in the space between two cutting parts, it is additionally provided with a cutting briquetting 12, Cutting briquetting 12 upper end be connected on tube stamping cutter by moving back sample spring 13, cutting briquetting 12 not by lower surface during external force to Down beyond cutting edge position, cutting part lower end.So, cutting briquetting and move back sample spring and coordinate to play and move back the convenient punching of sample function Realize cut sample after cutting moves back sample；Additionally the more important thing is, cutting briquetting is not exceeded downwards cutting by lower surface during external force Subordinate's end cutting edge position makes in blanking process, cut briquetting and first touched before the cutting edge of cutting part touches tubing Tubing upper surface also applies downward bigger pressure, this pressure and tubing by moving back sample spring to cut tubing upper surface middle part Sandwich pressure jointly act on so that tubing be cut position can just be formed obliquely and cut direction substantially opposite Stress, it is possible to preferably be beneficial to cutting edge break tubing complete cutting, improve cutting smoothness.Meanwhile, this pressure is permissible Offset inwardly making a concerted effort to the formation of sample both sides during both sides, tubing top are cut, it is to avoid in cutting process, sample is bent Arch upward deformation, improve sample mass.As optimization, this cutting briquetting lower surface is for being horizontally disposed with so that it is just to sample upper end Medium position exerts a force, it is ensured that the effect above becomes apparent from.More particularly, the application is hollow due to cut tubing Circular special construction, its inner hollow can not load, so during die cut, be easily caused tubing and be crushed and then affect and cut Smooth and the cut quality cut.And tubing is in all being applied with pressure up and down and on the four direction of left and right before cutting in this equipment The state of clamp force, therefore the thrust relative equilibrium being subject in tubing circumference, will not cause deformation because pressure is uneven during cutting, All tubing being applied with thrust due to the tubing both sides of the position of cutting during cutting, tubing can be cut by with joint efforts simultaneously Position forms outside internal stress so that during cutting, cutting edge is easier to break tubing, therefore can complete cutting more swimmingly And improve sample mass.

Wherein, described cutting edge is the vertical side inside cutting part and the inclined-plane phase being positioned at lower end outside cutting part Friendship obtains.The structure that so this cutting edge is formed so that along with cutting edge breaks tube surfaces and gos deep into tubing process during cutting In, cut sample both sides will not deform because of squeezed too, improves sample mass；This structure is more favorable for cutting simultaneously Rear cutter upwards withdrawing.

Wherein, described tube stamping cutter includes the cutter body 14 of a cuboid structure, also includes by fixing screw Be arranged on the cutting blade 15 of the cutter body left and right sides, cutting blade 15 bottom downwardly extend out cutter body and constitute for The cutting part of cutting, the cutting edge length of cutting part lower end is more than cut pipe diameter, two lateral extents before and after cutter body 14 More than two lateral extents before and after clamping position structure on base；Be additionally provided with on side, both sides before and after described cutter body 14 for Fixing screw fit is to realize the blade transposition fixing screw 16 fixing to cutting blade transposition.

So, when this equipment uses, only cutting blade need to be disassembled and again be fixed to cutter by fixing screw fit Before and after tool body on side, both sides, it becomes possible to realize overall tubing is intercepted along its length the rupturing operation of segment, first block Obtain after tubing segment, then cutting blade has been adjusted to about cutter body position with die-cut acquisition tubular product sample, thus The preparation more facilitating tubular product sample obtains.

Wherein, also including guiding mechanism, guiding mechanism includes two pieces of guide plates 17, and guide plate 17 is vertically arranged to punching press and leads to Above both sides, road and be relatively fixed on tubing detent mechanism, two pieces of guide plate medial surface and tube stamping cutter left and right sides Coordinate the guiding realized tube stamping cutter.

In such manner, it is possible to rely on guiding mechanism to realize guiding to tube stamping cutter left and right directions, it is ensured that cutting smooth and easy Carry out.

During enforcement, it is also possible to further, described tube stamping cutter left and right sides each with in corresponding guide plate The first guiding cooperatively formed by the first corresponding vertical direction recess and the first vertical guiding projection it is additionally provided with between side Position limiting structure.So, the cooperation relying on the first vertical guiding projection and the first vertical direction recess realizes tube stamping cutter Vertical guide while, direction and left and right directions before and after tube stamping cutter are all achieved spacing, it is ensured that punching press suitable Smooth property and accuracy.Further, the first guide and limit structure is arranged at lower end for being formed outside the cutting blade of cutting part Between the guide plate medial surface of surface and correspondence, the cutter body left and right sides of cutting blade inner surface and tube stamping cutter The the second guiding limit cooperatively formed by the second corresponding vertical direction recess and the second vertical guiding projection it is additionally provided with between face Bit architecture；The profile of the second guide and limit structure is consistent with front and back position and the first guide and limit structure, and guide plate 17 lower end leads to Crossing guide plate mounting seat and be fixed on tubing detent mechanism upper end, guide plate mounting seat includes a vertical mounting bracket 18 Fixing with the mounting seat 19 of level, mounting bracket 18 upper end and guide plate 17, lower end and mounting seat 19 are fixed, mounting seat It is provided with strip installing hole 20 on 19 in left-right direction and is pressed abd fixed on tubing calmly by installing screw through strip installing hole Position mechanism upper end, the length of described strip installing hole 20 is equal to or more than the thickness of cutting blade 15 left and right directions.So, when cutting Cutting blade disassembles from the left and right sides of cutter body and adjusts installation and is fixed to before and after cutter body both sides and for realizing During the cut-out in pipe length direction, it is possible to unclamp installation screw, readjust mounting seat right position so that inside guide plate Face completes the cooperation of wire restraint structure with cutter body left and right sides again, it is ensured that in the cut-out realizing pipe length direction During operation, it is also possible to realize guide and limit, it is ensured that cut off smooth and easy.It addition, it is curved to both sides foreign side in the middle part of mounting bracket 18 when implementing Bent arrange and upper end is fixedly connected on the lateral surface of guide plate, so make can to reserve between two mounting brackets in left and right bigger Locus, with facilitate realize cutting briquetting and move back sample spring maintenance handling.

During enforcement, being additionally provided with device for discharging, device for discharging includes that described cutting briquetting 12 and described blanking cutting support Platform 10, also includes just to being arranged on pipe clamping localization cavity rearward position and and pipe clamping localization cavity vertical cross-section profile The push pedal of coupling, is connected with a delivery device being fixed on work bench of punch press 21 on rear side of push pedal, described delivery device 21 energy Push pedal is enough driven to promote forward and pass pipe clamping localization cavity.So, use die-cut after, can start discharging dress Putting, drive push pedal forward the die-cut sample obtained to be released pipe clamping localization cavity by delivery device, complete discharging, raising is unloaded Material convenience.As preferably during enforcement, described delivery device 21 uses air cylinder device to obtain, and has simple in construction, easy to control, Promote the advantages such as the most reliable.As optimization during enforcement, can the punch press of adjacent position on front side of tubing detent mechanism further One receiver 22 is set on workbench, facilitates splicing, it is to avoid sample drops out workbench and breaks deformation.

Claims (7)

1. a metal pipe material punching mechanism, connects push rod including a punch press, and punch press connects push rod upper end and has a taper Main shaft union joint and for and punch press main shaft lower end mounting interface docking be connected, punch press connection push rod lower end be provided with tubing Punching tool, the left and right sides, tube stamping cutter lower end has the cutting part of two rectangular block shape straight down, under cutting part End is horizontally disposed cutting edge along the longitudinal direction, and the punching press passage reserved in clamping position structure is just set by two cutting parts Put and both sides are smaller than punching press channel width；It is characterized in that, in the space between two cutting parts, be additionally provided with one Individual cutting briquetting, cutting briquetting upper end is connected on tube stamping cutter by moving back sample spring, and cutting briquetting is by external force not at present Surface is downwards beyond cutting edge position, cutting part lower end.

2. metal pipe material punching mechanism as claimed in claim 1, it is characterised in that cutting briquetting lower surface is for being horizontally disposed with.

3. metal pipe material punching mechanism as claimed in claim 2, it is characterised in that described cutting edge is erecting inside cutting part Intersect with the inclined-plane being positioned at lower end outside cutting part to side and obtain.

4. metal pipe material punching mechanism as claimed in claim 3, it is characterised in that described tube stamping cutter includes a square The cutter body of physique structure, also includes the cutting blade being arranged on the cutter body left and right sides by fixing screw, cutting blade Bottom downwardly extends out cutter body and constitutes the cutting part for cutting, and the cutting edge length of cutting part lower end is more than cut Pipe diameter, before and after cutter body, two lateral extents are more than two lateral extents before and after clamping position structure；Before and after described cutter body two The blade fixing spiral shell of transposition for cutting blade transposition being fixed with realization it is additionally provided with fixing screw fit on side, side Hole.

5. metal pipe material punching mechanism as claimed in claim 1, it is characterised in that also include guiding mechanism, guiding mechanism bag Including two pieces of guide plates, guide plate is vertically arranged to above punching press passage both sides and is relatively fixed on tubing detent mechanism, two pieces Guide plate medial surface and tube stamping cutter left and right sides coordinate the guiding realized tube stamping cutter.

6. metal pipe material punching mechanism as claimed in claim 5, it is characterised in that described tube stamping cutter left and right sides It is additionally provided with between respective and corresponding guide plate medial surface and is vertically guided convex by the first corresponding vertical direction recess and first The first guide and limit structure that block cooperatively forms.

7. metal pipe material punching mechanism as claimed in claim 6, it is characterised in that the first guide and limit structure is arranged at lower end For being formed between the cutting blade outer surface of cutting part and the guide plate medial surface of correspondence, cutting blade inner surface and pipe It is additionally provided with by the second corresponding vertical direction recess and second vertical between the cutter body left and right sides of material punching tool The second guide and limit structure that guiding projection cooperatively forms；The profile of the second guide and limit structure and front and back position and first guide Position limiting structure is consistent, and guide plate lower end is fixed on tubing detent mechanism upper end by guide plate mounting seat, and guide plate is installed Seat includes a vertical mounting bracket and the mounting seat of level, and mounting bracket upper end and guide plate are fixed, lower end and installation Base is fixed, and mounting seat is provided with strip installing hole in left-right direction and compresses through strip installing hole by installing screw Being fixed on tubing detent mechanism upper end, the length of described strip installing hole is equal to or more than the thickness of cutting blade left and right directions.