CN107649566A - A kind of instrument and its application method for being used to be punched materials in the tube joint - Google Patents

Abstract

The invention discloses a kind of instrument and its application method for being used to be punched materials in the tube joint.It includes a base, and the top surface of base, which is set up, a workbench, and a counterbore is provided with the top center of workbench；An annular bearing and a rotating disc are placed with counterbore, on the top surface of rotating disc, a fixing blocks for joints standing groove is machined with left and right directions between two parties, a central block standing groove is machined with fore-and-aft direction between two parties, two fixing blocks for joints are fixed with fixing blocks for joints standing groove, on the right side top surface of base, a lifting screw is provided with immediately below workbench right-hand member.The present invention passes through above structure design, make and be arranged on rotating disc by the way that materials in the tube fixing blocks for joints is determined into angle, after installation, materials in the tube joint is set up and swung by swinging locating rod or so 180 degree by two fixing blocks for joints, the positioning to materials in the tube joint and the punching operation to its left and right ends are realized, is a kind of instrument and application method of preferably punching materials in the tube joint.

Description

A kind of instrument and its application method for being used to be punched materials in the tube joint

Technical field

The present invention relates to tubular object extruding technical field, more particularly to a kind of instrument and its use for being used to be punched materials in the tube joint Method.

Background technology

It is known, it is overall strong to increase it when two sections or multistage metal fix pipe fitting welding in field of machining Degree, if pipe fitting is longitudinally connected, will will generally be connected in transverse direction between adjacent two pipe fittings, similarly, if pipe fitting lateral connection, It will be connected on longitudinal direction usually using joint between adjacent two pipe fittings, it is more in connection procedure to be carried out forever using welding manner It is fixed, to make materials in the tube joint and pipe fitting welding more firm, professional equipment is typically used by materials in the tube joint both ends and pipe fitting knot Arcuation breach is punched out at conjunction with pipe fitting to match.

Problem encountered is at present：If adjacent two pipe fittings is when being placed in parallel, the both ends of materials in the tube joint can be directly vertical Punching, if but adjacent two pipe fittings when be non-parallel placement, the both ends arcuation breach to be punched of joint is then non-perpendicular scarce Mouthful, as shown in Figure 9；But at present to solve problem above, when being punched the arcuation breach of different angle, it is necessary to change difference The frock clamp of set angle, so, the frock clamps of multiple angles need to be designed and produced, such a way is brought very to process unit Big financial burden, meanwhile, when employee operates, the exchange dismounting between multi-mould adds the working strength of worker, reduces Operating efficiency, the drawbacks of in prior art, the purpose of the present invention, which is that design is a, can tackle a variety of punching angles Instrument and its application method is disclosed.

The content of the invention

In view of the above the shortcomings that prior art, the purpose of the present invention be by technological improvement, can by kit, After adjustment angle, a removable parts fixture can should carry out the demand of punch press process to a variety of arcuation breach.

The technical solution adopted for the present invention to solve the technical problems is：A kind of instrument for being used to be punched materials in the tube joint, its Including a base, a bottom material-dropping hole is provided with the center of described base；It is parallel vertically on the top surface of base to be welded with Two panels support chip, a workbench has been set up on two panels support chip jointly by fixing axle, and described workbench is stepped time Swivel structure, its basal diameter is small, and top surface diameter is big, and a counterbore is provided with the top center of workbench, described counterbore Lower section is a through hole for running through workbench upper and lower surface；An annular bearing, described annular are placed with described counterbore It is placed with a rotating disc on bearing, on the side of described rotating disc, a circle is machined with bench top top position Sliding groove, on the top surface of rotating disc, it is machined with a fixing blocks for joints standing groove on left and right directions between two parties, it is placed in the middle on fore-and-aft direction A central block standing groove is machined with, the material-dropping hole of about one transparent design is machined with described rotation disk center；It is described Fixing blocks for joints standing groove inner bolt be fixed with two fixing blocks for joints；Described central block standing groove inner bolt is fixed with two Individual central block, described two central blocks are symmetrical arranged, and the front and rear sides of fixing blocks for joints are separately fixed at, in rear side On heart block, an auxiliary positioning bar, described auxiliary positioning are fixed with towards fixing blocks for joints direction is interspersed on its front and back sides Bar is tubular design, corresponding with auxiliary positioning bar, and on the central block of front side, the front and back sides through central block intert It is fixed with a swing locating rod；Described fixing blocks for joints standing groove inner bolt is fixed with two fixing blocks for joints, described Two fixing blocks for joints are symmetrical set；On the right side top surface of described base, one is fixed with immediately below workbench right-hand member Fixed block, a lifting screw is vertically arranged with fixed block, is withstood at the top of lifting screw on workbench bottom surface.

On the top surface of described workbench, a stopper slot, described two stopper slots are machined with respectively in its front and back Inside bolt is fixed with a limited block respectively, and a limit opening is machined with described limited block, and limit opening right-hand member runs through The right flank of whole limited block, at left end center and swing locating rod and be arranged concentrically.

Bolt is fixed with a L block respectively at the front and rear sides center of described base, spiral shell on the vertical plane of described L blocks Bolt is fixed with an inductor that can be adjusted vertically up and down, on the right side of described inductor and the fore-and-aft direction of workbench Center line alignment.

In described swing locating rod, its end coordinated with junction contacts is the design of arcuation mouth or is that diameter is thinner Circular pin is designed, and the diameter of described circular pin is marked with being just inserted into the positioning hole at materials in the tube connector center and not rocking Standard, described circular pin are inserted into auxiliary positioning bar after passing through materials in the tube joint, and described auxiliary positioning bar is fixed on rear side On central block, its center bore matches with circular pin external diameter, can be inserted perpendicularly into and not rocked as standard with circular pin.

On described fixing blocks for joints, its two symmetric design in left and right, it includes the joint of level design at center and placed The stamping knife movable chamber of inclined design on chamber, and vertical direction, included angle B and joint between stamping knife movable chamber and joint placed cavity It is identical with materials in the tube combination angle A, the demand of described two angle As and B determination according to actual joint with materials in the tube combination angle And determine, two angle As and B are can be clear and definite；The diameter of described joint placed cavity matches with materials in the tube bond diameter；Stamping knife The diameter of movable chamber matches with the pipe fitting diameter being combined.

The height of described sliding groove is identical with the thickness of spacer, is just inserted with spacer and sliding groove top surface of getting along well Rub as standard.

A kind of instrument for being used to be punched materials in the tube joint as described above, its application method are described below：

Step 1：Materials in the tube joint is intercepted, within a fitting through punching at the heart；

Step 2：Two fixing blocks for joints from proper angle and by its it is symmetrical it is fixed on the table, by the pipe after punching Material joint is placed into the joint placed cavity on fixing blocks for joints, and is inserted into running through on materials in the tube joint by swinging locating rod In hole, materials in the tube joint is positioned；

Step 3：Lathe of work level angle is adjusted, screws the lifting screw on the right side of workbench, by lifting screw by workbench right side Jack up, to stamping knife direction mobile base, when the stamping knife and stamping knife activity the cavity outer wall fitting that are vertically arranged and it is seamless when, stop moving Dynamic workbench is simultaneously locked；

Step 4：During single-ended punching, swing locating rod and be located in limit opening, now swing the front and rear setting of locating rod, its most before End is bonded through limit opening and inductor, and now stamping knife is fallen, and one end of materials in the tube joint is punched, and after stamping knife lifting, is pulled Swing locating rod rotation 180 degree, pull swing locating rod enter rear side limit opening in and and rear side inductor be bonded, this When stamping knife fall, the other end of materials in the tube joint is punched.

The invention has the advantages that：The present invention is by above structure design and application method, by the way that materials in the tube are connect Head fixed block determines angle and makes and be arranged on rotating disc, and after installation, materials in the tube joint is set up and led to by two fixing blocks for joints The swing of swing locating rod or so 180 degree is crossed, realizes the positioning to materials in the tube joint and the punching operation to its left and right ends, this hair It is bright simple in construction, it is ingenious in design, materials in the tube joint at any angle two is realized by the effect of the rotating disc of horizontal plane Rotation Design End is cut, and by installation function accessory, is effectively avoided the generation that knife phenomenon is hit in blanking process, be a kind of preferable It is punched the instrument and application method of materials in the tube joint.

Brief description of the drawings

The present invention is further described with reference to the accompanying drawings and examples；

Fig. 1 is dimensional structure diagram of the present invention；

Fig. 2 is main structure diagram of the present invention；

Fig. 3 is the operating diagram when top of present invention swing locating rod is designed for circular pin；

Fig. 4 is the operating diagram when top of present invention swing locating rod is designed for arcuation；

Fig. 5 is operating diagram when inventive joint fixed block is fixed with materials in the tube joint；

Fig. 6 is cross section structure diagram at product center of the present invention；

Fig. 7 is cross section structure diagram at the center of Fig. 6 center tap fixed blocks；

Fig. 8 is rotating disc top structure schematic diagram of the present invention；

Fig. 9 is materials in the tube and materials in the tube joint connection diagram；

In figure, 1, base, 10, material-dropping hole, 11, fixed block, 12, lifting screw, 13, support chip, 14, fixing axle, 15, stamping knife, 16th, materials in the tube joint, 17, through hole, 18, bottom material-dropping hole, 19, pipe fitting, 2, L blocks, 21, inductor, 3, workbench, 30, rotating disc, 31st, sliding groove, 32, fixing blocks for joints standing groove, 33, central block standing groove, 34, counterbore, 35, stopper slot, 4, limited block, 41, Limit opening, 5, swing locating rod, 51, circular pin, 52, arcuation mouth, 53, auxiliary positioning bar, 6, central block, 7, joint fixes Block, 71, stamping knife movable chamber, 72, joint placed cavity, 8, spacer, 9, annular bearing.

Embodiment

Careful description is carried out to the present invention below, those skilled in the art can be light as the content disclosed by this specification Change places and understand other advantages and effect of the present invention.

It is shown with reference to the accompanying drawings：A kind of instrument for being used to be punched materials in the tube joint, it includes a base 1, described base 1 A bottom material-dropping hole 18 is provided with center；

It is parallel vertically on the top surface of base 1 to be welded with two panels support chip 13, pass through fixing axle 14 on described two panels support chip 13 Common set up has a workbench 3, and described workbench 3 is stepped rotary structure, and its basal diameter is small, top surface diameter Greatly, a counterbore 34 is provided with the top center of workbench, the lower section of described counterbore 34 is run through two above and below workbench for one The through hole 17 in face；An annular bearing 9 is placed with described counterbore 17, a rotation is placed with described annular bearing 9 Disk 30, on the side of described rotating disc 30, a circle sliding groove 31, rotating disc 30 are machined with bench top top position Top surface on, a fixing blocks for joints standing groove 32 is machined with left and right directions between two parties, is machined between two parties respectively on fore-and-aft direction One central block standing groove 33, the material-dropping hole 10 of about one transparent design is machined with described rotation disk center；Described The inner bolt of fixing blocks for joints standing groove 32 is fixed with two fixing blocks for joints 7；The described inner bolt of central block standing groove 33 is fixed There are two central blocks 6, described two central blocks 6 are symmetrical arranged, are separately fixed at the front and rear sides of fixing blocks for joints 7, are located at On the central block of rear side, an auxiliary positioning bar 53 is fixed with towards the direction of fixing blocks for joints 7 is interspersed on its front and back sides, with it Corresponding, on the central block of front side, intert through the front and back sides of central block and be fixed with a swing locating rod 5；Institute The inner bolt of fixing blocks for joints standing groove 32 stated is fixed with two fixing blocks for joints 7, described two 7 or so pairs of fixing blocks for joints Claim to set；A fixed block 11 is fixed with the right side top surface of described base 1, immediately below workbench right-hand member, on fixed block 11 A lifting screw 12 is vertically arranged with, the top of lifting screw 12 is withstood on the bottom surface of workbench 3.

Further, to make the instrument of the punching materials in the tube joint described in product of the present invention that there is more preferable precision characteristic, institute On the top surface for the workbench 3 stated, a stopper slot 35 is machined with respectively in its front and back, described two stopper slots 35 are interior respectively Bolt is fixed with a limited block 4, and a limit opening 41 is machined with described limited block 4, and the right-hand member of limit opening 41 runs through The right flank of whole limited block 4, at the left end center of limit opening 41 and swing locating rod 5 and be arranged concentrically, it is when swinging that it, which is acted on, When locating rod 5 swings and enters 41 inside of limit opening, swinging locating rod 5 will not swing up and down, and it is in level The maximum as 180 degree of full swing amplitude on face.

Designed more than, product of the present invention can realize any angle punching at materials in the tube joint both ends, still, be punched During, the conversion of the position at materials in the tube joint both ends is realized by using pulling movable pendulum and move locating rod 5, i.e. this punching materials in the tube joint Instrument when slug acts, be to coordinate staggeredly to realize by stamping knife 15 and stamping knife movable chamber 71, in actual production process Problems with is likely to encounter, when swing locating rod 5 is not swung in place, stamping knife 15 is put down in operating personnel's maloperation, stamping knife 15 Knife can be hit with the fixing blocks for joints 7 of rotating disc 30 or its top installation, cause device damage；To avoid above security incident Occur, bolt is fixed with a L block 2 respectively at the front and rear sides center of base 1, and bolt is consolidated on the vertical plane of described L blocks 2 Surely there is an inductor that can be adjusted vertically up and down 21, on the described right side of inductor 21 and the fore-and-aft direction of workbench Center line alignment, as shown in Figure 3,4, when swing locating rod 5 contacted with inductor 21 when, stamping knife upper and lower displacement, its walking road Stamping knife movable chamber 71 on line and fixing blocks for joints 7 matches；Changed more than, inductor 21 is accessed into outside control system When system, only inductor 21 contact with swinging locating rod 5, lifting or the slug action control of stamping knife can be just realized.

In described swing locating rod 5, it sets with the end that materials in the tube joint 16 is engaged for the thinner circular pin of diameter Meter, the diameter of described circular pin 51 to be just inserted into the positioning hole at materials in the tube connector center and not rock as standard, this The purpose of kind design is to prevent materials in the tube joint 16 in punching or rotary course in the inner rotation of joint placed cavity 72, or is caused The punching angle of the left and right sides is inconsistent, can not be combined with pipe fitting 19, when the present invention works, after circular pin 51 passes through materials in the tube joint Enter in auxiliary positioning bar 53, described auxiliary positioning bar 53 is fixed on the central block 6 of rear side.

Set as shown in figure 4, the end that described swing locating rod 5 and materials in the tube joint 16 is engaged can also be arcuation mouth Meter, the end that the auxiliary positioning bar 53 coordinated with it is engaged with materials in the tube joint 16 are also designed for arcuation mouth, on fore-and-aft direction Materials in the tube joint 16 is extruded fixation by two arcuation mouths.

As shown in figure 5, on described fixing blocks for joints 7, its two symmetric design in left and right；It includes level design at center Joint placed cavity 72 and vertical direction on inclined design stamping knife movable chamber 71；As shown in figures 7 and 9, stamping knife movable chamber Included angle B and joint between 71 and joint placed cavity 72 is identical with materials in the tube combination angle A, two described angle As and B determination Determined according to actual materials in the tube joint 16 with pipe fitting 19 with reference to the demand of angle, two angle As and B are can be clear and definite；It is described Joint placed cavity 72 diameter and the diameter matches of materials in the tube joint 16, the diameter of stamping knife movable chamber 71 and the pipe fitting 19 being combined are straight Footpath matches.

Further, the height of described sliding groove 31 is identical with the thickness of spacer 8, just inserted with spacer 8 and The top surface of sliding groove 31 friction of getting along well is standard.

A kind of instrument for being used to be punched materials in the tube joint as described above, its application method are described below：

Embodiment 1：

Step 1：Materials in the tube are intercepted into segment materials in the tube joint 16, through punching at the center of materials in the tube joint 16 according to length requirement；

Step 2：It is simultaneously symmetrically fixed on the fixing blocks for joints on workbench 3 by two fixing blocks for joints 7 from proper angle The internal lock of standing groove 32 is fastened, and the materials in the tube joint 16 after punching is placed into the joint placed cavity 72 on fixing blocks for joints 7, will The circular pin 51 swung in locating rod 5 is inserted into the through hole on materials in the tube joint 16, and materials in the tube joint 16 is positioned；

Step 3：The angle of workbench 3 is adjusted, screws the lifting screw 12 on the right side of workbench 3, by lifting screw 12 by work The right side of platform 3 jacks up, to the direction mobile base 1 of stamping knife 15, when stamping knife 15 and the outer wall of stamping knife movable chamber 71 fitting being vertically arranged And when seamless, stop mobile work platform 3 and table latch is fixed on the table top of outside punching board, now, work The position of platform 3 and stamping knife 15 is fixed；

Step 4：During single-ended punching, swing locating rod 5 and be located in limit opening 41, when the front end and inductor that swing locating rod 5 21 fittings, button is punched by lower outer portion, now stamping knife 15 is fallen, and one end of materials in the tube joint 16 is punched, and after stamping knife 15 is lifted, is drawn Movable pendulum move locating rod rotation 180 degree, pull swing locating rod enter rear side limit opening 41 in and and rear side inductor 21 Fitting, button is punched by lower outer portion again, now stamping knife 15 is fallen, and the other end of materials in the tube joint 16 is punched.

Embodiment 2：

Step 1：Materials in the tube are intercepted into segment materials in the tube joint 16 according to length requirement；

Step 2：It is simultaneously symmetrically fixed on the fixing blocks for joints on workbench 3 by two fixing blocks for joints 7 from proper angle The internal lock of standing groove 32 is fastened, and materials in the tube joint 16 is placed into the joint placed cavity 72 on fixing blocks for joints 7, connect from joint The swing locating rod 5 that the end coordinated is the design of arcuation mouth is touched, is contacted with the auxiliary positioning bar 53 that it coordinates with materials in the tube joint 16 The end of cooperation is also designed for arcuation mouth, and materials in the tube joint 16 is extruded fixation by two arcuation mouths on fore-and-aft direction；

Step 3：The angle of workbench 3 is adjusted, screws the lifting screw 12 on the right side of workbench 3, by lifting screw 12 by work The right side of platform 3 jacks up, to the direction mobile base 1 of stamping knife 15, when stamping knife 15 and the outer wall of stamping knife movable chamber 71 fitting being vertically arranged And when seamless, stop mobile work platform 3 and table lock fastened into outside to be punched on the table top of board, and now, workbench 3 Fixed with the position of stamping knife 15；

Step 4：During single-ended punching, swing locating rod 5 and be located in limit opening 41, when the front end and inductor that swing locating rod 5 21 fittings, button is punched by lower outer portion, now stamping knife 15 is fallen, and one end of materials in the tube joint 16 is punched, and after stamping knife 15 is lifted, is drawn Movable pendulum move locating rod rotation 180 degree, pull swing locating rod enter rear side limit opening 41 in and and rear side inductor 21 Fitting, button is punched by lower outer portion again, now stamping knife 15 is fallen, and the other end of materials in the tube joint 16 is punched.

The present invention is made and is arranged on by the way that fixing blocks for joints 7 is determined into angle by above structure design and application method On rotating disc 30, after installation, materials in the tube joint 16 is set up and by swinging locating rod or so 180 degree by two fixing blocks for joints 7 Swing, realize the positioning to materials in the tube joint 16 and the punching operation to its left and right ends, the present invention is simple in construction, and design is skilful It is wonderful, realize that both ends are cut materials in the tube joint at any angle by the effect of the rotating disc of horizontal plane Rotation Design, meanwhile, pass through pipe Expect joint 16 and pull the cooperation for swinging locating rod 5, realize effective fixation to materials in the tube joint 16, prevent it in blanking process It is middle because rotation and caused by both ends punchings it is asymmetric, and by installation function accessory, effectively avoid and knife hit in blanking process The generation of phenomenon, it is a kind of instrument of preferably punching materials in the tube joint.

Claims (7)

1. a kind of instrument for being used to be punched materials in the tube joint, it includes a base, a bottom is provided with the center of described base Portion's material-dropping hole, it is characterised in that：It is parallel vertically on the top surface of base to be welded with two panels support chip, lead on described two panels support chip Crossing fixing axle and setting up jointly has a workbench, and described workbench is stepped rotary structure, and its basal diameter is small, top surface Diameter is big, and a counterbore is provided with the top center of workbench, and the lower section of described counterbore is run through two above and below workbench for one The through hole in face；An annular bearing is placed with described counterbore, a rotating disc is placed with described annular bearing, it is described Rotating disc side on, be machined with a circle sliding groove at bench top top position, on the top surface of rotating disc, right and left A fixing blocks for joints standing groove is machined between two parties upwards, is machined with a central block standing groove on fore-and-aft direction between two parties, it is described Rotation disk center at be machined with the material-dropping hole of about one transparent design；Described fixing blocks for joints standing groove inner bolt is fixed There are two fixing blocks for joints；Described central block standing groove inner bolt is fixed with two central blocks, described two central blocks pair Claim to set, the front and rear sides of fixing blocks for joints are separately fixed at, on the central block of rear side, towards joint on its front and back sides Fixed Block direction is interspersed to be fixed with an auxiliary positioning bar, and described auxiliary positioning bar is tubular design, with auxiliary positioning bar phase It is corresponding, on the central block of front side, intert through the front and back sides of central block and be fixed with a swing locating rod；Described Fixing blocks for joints standing groove inner bolt is fixed with two fixing blocks for joints, and described two fixing blocks for joints are symmetrical set； On the right side top surface of described base, a fixed block is fixed with immediately below workbench right-hand member, one is vertically arranged with fixed block Individual lifting screw, withstand on workbench bottom surface at the top of lifting screw.

A kind of 2. instrument for being used to be punched materials in the tube joint as claimed in claim 1, it is characterised in that：The top of described workbench On face, be machined with a stopper slot respectively in its front and back, in described two stopper slots respectively bolt be fixed with one it is spacing Block, is machined with a limit opening on described limited block, and limit opening right-hand member runs through the right flank of whole limited block, in left end It is arranged concentrically at the heart with swing locating rod.

A kind of 3. instrument for being used to be punched materials in the tube joint as claimed in claim 1, it is characterised in that：Described base it is front and rear Bolt is fixed with a L block respectively at the center of both sides, on the vertical plane of described L blocks bolt be fixed with one can be vertical up and down The inductor of regulation, the center line alignment on the right side of described inductor and the fore-and-aft direction of workbench.

A kind of 4. instrument for being used to be punched materials in the tube joint as claimed in claim 1, it is characterised in that：Described swing locating rod On, it is the design of arcuation mouth with the end that junction contacts coordinate or is that the thinner circular pin of diameter designs, described circular pin Diameter to be just inserted into the positioning hole at materials in the tube connector center and not rock as standard, described circular pin passes through materials in the tube It is inserted into after joint in auxiliary positioning bar, described auxiliary positioning bar is fixed on the central block of rear side, its center bore and circle Shape bar external diameter matches, and can be inserted perpendicularly into and not rocked as standard with circular pin.

A kind of 5. instrument for being used to be punched materials in the tube joint as claimed in claim 1, it is characterised in that：Described fixing blocks for joints On, its two symmetric design in left and right, it includes the joint placed cavity of level design at center, and inclined design on vertical direction Stamping knife movable chamber, the included angle B and joint between stamping knife movable chamber and joint placed cavity are identical with materials in the tube combination angle A, described Two angle As and B determination according to actual joint and materials in the tube combination angle demand and determine, two angle As and B are can be with Clearly；The diameter of described joint placed cavity matches with materials in the tube bond diameter；The diameter of stamping knife movable chamber and the pipe being combined Part diameter matches.

A kind of 6. instrument for being used to be punched materials in the tube joint as claimed in claim 1, it is characterised in that：The height of described sliding groove Degree is identical with the thickness of spacer, is just inserted using spacer and sliding groove top surface friction of getting along well is standard.

A kind of 7. instrument for being used to be punched materials in the tube joint, it is characterised in that：

Its application method step is as follows：

Step 1：Materials in the tube joint is intercepted, within a fitting through punching at the heart；

Step 2：Two fixing blocks for joints from proper angle and by its it is symmetrical it is fixed on the table, by the pipe after punching Material joint is placed into the joint placed cavity on fixing blocks for joints, and is inserted into running through on materials in the tube joint by swinging locating rod In hole, materials in the tube joint is positioned；

Step 3：Lathe of work level angle is adjusted, screws the lifting screw on the right side of workbench, by lifting screw by workbench right side Jack up, to stamping knife direction mobile base, when the stamping knife and stamping knife activity the cavity outer wall fitting that are vertically arranged and it is seamless when, stop moving Dynamic workbench is simultaneously locked；

Step 4：During single-ended punching, swing locating rod and be located in limit opening, now swing the front and rear setting of locating rod, its most before End is bonded through limit opening and inductor, and now stamping knife is fallen, and one end of materials in the tube joint is punched, and after stamping knife lifting, is pulled Swing locating rod rotation 180 degree, pull swing locating rod enter rear side limit opening in and and rear side inductor be bonded, this When stamping knife fall, the other end of materials in the tube joint is punched.