CN110814135A - Pipe side opening drawing device - Google Patents
Pipe side opening drawing device Download PDFInfo
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- CN110814135A CN110814135A CN201911252071.XA CN201911252071A CN110814135A CN 110814135 A CN110814135 A CN 110814135A CN 201911252071 A CN201911252071 A CN 201911252071A CN 110814135 A CN110814135 A CN 110814135A
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- Prior art keywords
- ejector rod
- block
- rod
- clamping block
- lifting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
- B21D19/088—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws for flanging holes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
Abstract
The invention belongs to the technical field of metal pipe production and processing, and particularly relates to a pipe side hole drawing device which comprises an upper clamping block and a lower clamping block which are arranged in an opening and closing manner along the vertical direction, a first ejector rod and a second ejector rod, wherein a steel ball is arranged between the first ejector rod and the second ejector rod, a movable sleeve is arranged outside the second ejector rod, and a steel ball inlet is arranged on the wall of the movable sleeve; a continuous ramp is arranged below the lower clamping block, a lifting mechanism is arranged at the lower end of the continuous ramp, and the lifting mechanism is used for lifting the steel ball from the lower end of the continuous ramp to the steel ball inlet of the movable sleeve. According to the invention, the continuous ramp and the lifting mechanism are utilized to automatically recover and load the steel balls, the steel balls roll to the lifting mechanism along the automatic ramp after falling from the drawing hole, the lifting mechanism lifts the steel balls into the pipe cavity of the movable sleeve, no manual operation is required for recovering and loading the steel balls, the full-automatic production in the true sense is realized, and the processing efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of metal pipe fitting production and processing, and particularly relates to a pipe fitting side hole drawing device.
Background
The metal tee is generally manufactured by cutting or die casting, but the processing methods have low production efficiency and limited application range, and the metal tee cannot be processed by the method for the covering metal tee. The processing of metal thin wall type tee bend among the prior art generally adopts the mode of punching press extension to process, sets up the terrace die promptly in the pipe fitting, and the pipe fitting outside sets up the die, utilizes the press to extrude the side opening that the terrace die punched the pipe fitting, and then realizes the shaping of side opening turn-ups, but stamping equipment among the prior art can't realize the accurate positioning of pipe fitting side opening, and the side opening location generally adopts manual operation, not only positioning accuracy can not be ensured, and work efficiency is low moreover. In addition, the stamping equipment in the prior art cannot realize automatic filling and recovery of the male die, so that full-automatic production cannot be realized, and the processing efficiency cannot be essentially improved.
Disclosure of Invention
The invention aims to provide a pipe fitting side hole drawing device capable of automatically recovering and filling steel balls.
The technical scheme adopted by the invention is as follows:
a pipe side hole drawing device comprises an upper clamping block and a lower clamping block which are arranged in an opening and closing mode along the vertical direction, wherein semicircular grooves are formed in the bottom surface of the upper clamping block and the top surface of the lower clamping block, when the upper clamping block and the lower clamping block are clamped tightly, the two semicircular grooves are spliced into a cylindrical cavity used for containing a pipe, a drawing hole is formed in the bottom of the semicircular groove of the lower clamping block, a first ejector rod and a second ejector rod are arranged at two ends of the cylindrical cavity respectively, the first ejector rod and the second ejector rod are arranged in an opening and closing mode along the axial direction of the cylindrical cavity, a steel ball is arranged between the first ejector rod and the second ejector rod, an inclined surface is arranged at the end portion of the first ejector rod, and when the first ejector rod and the second ejector rod are closed, the steel ball located in the pipe moves outwards of the drawing hole under the pushing and squeezing action of the inclined surface and expands and stretches the edge of a pipe side hole to; a movable sleeve is arranged outside the second ejector rod and is in sliding fit with the second ejector rod, and a steel ball inlet is formed in the wall of the movable sleeve; and a continuous ramp is arranged below the lower clamping block, the lower end of the drawing hole is communicated with the upper end of the continuous ramp, and a lifting mechanism is arranged at the lower end of the continuous ramp and used for lifting the steel ball to the steel ball inlet of the movable sleeve from the lower end of the continuous ramp.
The lifting mechanism comprises a vertically arranged lifting channel and a lifting block arranged in the lifting channel in a sliding mode along the vertical direction, the top surface of the lifting block is a slope surface parallel to the slope surface of the lower end of the continuous ramp, a feed inlet communicated with the lower end of the continuous ramp is formed in the side wall of the lower end of the lifting channel, an auxiliary ramp is arranged at the upper end of the lifting channel, the slope surface of the auxiliary ramp is parallel to the top surface of the lifting block, a discharge outlet communicated with the upper end of the auxiliary ramp is formed in the side wall of the upper end of the lifting channel, and the lower end of the auxiliary ramp is communicated with a.
A linkage mechanism is arranged between the lifting block and the second ejector rod, the linkage mechanism is assembled in such a way that when the second ejector rod moves towards the direction far away from the first ejector rod, the second ejector rod drives the lifting block to move upwards, and when the second ejector rod moves towards the direction close to the first ejector rod, the second ejector rod drives the lifting block to move downwards.
The linkage mechanism comprises a lifting rope, a vertical strip groove is formed in the side wall of the lifting channel, a protruding column is arranged at the position, corresponding to the vertical strip groove, of the side wall of the lifting block, the protruding column penetrates through the vertical strip groove and protrudes to the outer side of the lifting channel, a fixed pulley is arranged at the upper end of the lifting channel, one end of the lifting rope is fixedly connected with the protruding column, and the other end of the lifting rope is fixedly connected with a connecting plate fixedly arranged on the second ejector rod through the fixed pulley.
The movable sleeve is connected with the frame where the auxiliary ramp is located in a sliding mode, and the movable sleeve is assembled to be switched between the following two stations: at a first station, the movable sleeve moves towards the direction of the first ejector rod and is in butt joint with the pipe fitting, and at a second station, the movable sleeve moves towards the direction far away from the first ejector rod and is separated from the pipe fitting; and a fourth elastic unit is arranged between the second ejector rod and the movable sleeve, the fourth elastic unit is assembled into a structure that the elastic force of the fourth elastic unit can drive the movable sleeve to move towards the direction close to the first ejector rod relative to the second ejector rod, and a limiting part for preventing the movable sleeve from being separated from the second ejector rod is arranged between the inner wall of the movable sleeve and the second ejector rod.
The upper end of the upper clamping block and the lower end of the lower clamping block are respectively provided with a first wedge surface and a second wedge surface, a fifth elastic unit and a sixth elastic unit are respectively arranged between the upper clamping block and the rack and between the lower clamping block and the rack, and the fifth elastic unit and the sixth elastic unit are assembled so that the elastic force of the fifth elastic unit can drive the upper clamping block and the lower clamping block to be away from each other; and when the first ejector rod moves towards the direction of the second ejector rod, the first wedge driving block and the second wedge driving block drive the upper clamping block and the lower clamping block to be closed mutually.
The first ejector rod comprises a rod body and a movable head arranged at the end part of the rod body, the movable head is movably arranged relative to the rod body along the axial direction of the rod body, a side push block is arranged on the movable head, the side push block is arranged in a sliding manner along the radial direction of the movable head, a transmission mechanism is arranged between the rod body and the movable head, the transmission mechanism is assembled to drive the side push block to slide outwards along the radial direction of the movable head when the movable head and the rod body are close to each other, the transmission mechanism can drive the side push block to slide inwards along the radial direction of the movable head when the movable head and the rod body are far away from each other, a seventh elastic unit is arranged between the rod body and the movable head, and the seventh elastic unit is assembled to drive the movable head and the rod body to be far; a locking mechanism is arranged between the movable head and the side push block, the locking mechanism is assembled to have two stations of locking and unlocking, the movable head and the rod body can be prevented from approaching each other when the locking mechanism is locked, and the movable head and the rod body can approach each other when the locking mechanism is unlocked; the locking mechanism is in a locking state in a normal state, the end face of the movable head is provided with the unlocking mechanism, and when the end face is abutted against the end face of the second ejector rod, the unlocking mechanism can be extruded to unlock the locking mechanism.
Drive mechanism includes the guide board that sets up on the push rod that sets up on the body of rod and the side ejector pad, the push rod tip is equipped with the pilot pin, the bar bullport has been seted up on the guide board, and the slope of bar bullport sets up, the pilot pin constitutes sliding fit with the bar bullport.
The locking mechanism comprises a locking hole formed in the side push block and a slide way communicated with the locking hole, a locking block is arranged in the locking hole, the locking block is movably arranged between the locking hole and the slide way, an eighth elastic unit is arranged between the locking block and the movable head, and the eighth elastic unit is assembled to enable the elastic force of the eighth elastic unit to drive the locking block to move from the slide way into the locking hole; the release mechanism includes the depression bar with the locking piece rigid coupling, the depression bar slides along the direction that is on a parallel with the body of rod and sets up in the activity head, the one end protrusion in the terminal surface setting of activity head that the locking piece was kept away from to the depression bar, still be equipped with in the side push away piece with the locking hole intercommunication, parallel and the width of slide be narrower in the groove of dodging of slide width, dodge the groove and be used for dodging the depression bar.
The rod body and the end face opposite to the movable head are provided with a plurality of fan-shaped convex columns in a staggered mode along the circumferential direction, the fan-shaped convex columns are in staggered insertion, a cylindrical cavity is arranged between the fan-shaped convex columns, and the seventh elastic unit is a pressure spring located in the cylindrical cavity.
The invention has the technical effects that: according to the invention, the continuous ramp and the lifting mechanism are utilized to automatically recover and load the steel balls, the steel balls roll to the lifting mechanism along the automatic ramp after falling from the drawing hole, the lifting mechanism lifts the steel balls into the pipe cavity of the movable sleeve, no manual operation is required for recovering and loading the steel balls, the full-automatic production in the true sense is realized, and the processing efficiency is improved.
Drawings
FIG. 1 is a perspective view of a drawing mechanism provided by an embodiment of the present invention;
FIG. 2 is a top view of a drawing mechanism provided by an embodiment of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view C-C of FIG. 3;
FIG. 5 is a cross-sectional view B-B of FIG. 2;
FIG. 6 is a cross-sectional view D-D of FIG. 5;
FIG. 7 is a perspective view of a first ram provided by an embodiment of the present invention;
FIG. 8 is a schematic diagram of one of the stations of the draw mechanism provided by an embodiment of the present invention;
FIG. 9 is a schematic diagram of another station of the draw mechanism provided by an embodiment of the present invention;
FIG. 10 is a schematic diagram of yet another station of the draw mechanism provided by an embodiment of the present invention;
fig. 11 is a sectional view of a locking mechanism provided by an embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the following description is given in conjunction with the accompanying examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed.
As shown in fig. 1 to 11, a pipe side hole drawing device comprises an upper clamping block 31 and a lower clamping block 32 which are opened and closed along a vertical direction, wherein the bottom surface of the upper clamping block 31 and the top surface of the lower clamping block 32 are provided with semicircular grooves, when the upper clamping block 31 and the lower clamping block 32 are clamped, the two semicircular grooves are spliced to form a cylindrical cavity for accommodating the pipe, wherein the bottom of the semicircular groove of the lower clamping block 32 is provided with a drawing hole 322, the two ends of the cylindrical cavity are respectively provided with a first mandril 33 and a second mandril 34, the first top bar 33 and the second top bar 34 are opened and closed along the axial direction of the cylindrical cavity, and a steel ball 39 is arranged between the first push rod 33 and the second push rod 34, an inclined plane is arranged at the end part of the first push rod 33, when the first ejector rod 33 and the second ejector rod 34 are closed, the steel ball 39 in the pipe fitting moves outwards the drawing hole 322 under the pushing and extruding action of the inclined plane and expands and stretches the edge of the side hole of the pipe fitting so that the edge of the side hole forms a turnover surface protruding towards the outside of the pipe fitting; a movable sleeve 341 is arranged outside the second ejector rod 34, the movable sleeve 341 is in sliding fit with the second ejector rod 34, and a steel ball inlet 3411 is arranged on the wall of the movable sleeve 341; a continuous ramp 37 is arranged below the lower clamping block 32, the lower end of the drawing hole 322 is communicated with the upper end of the continuous ramp 37, and a lifting mechanism is arranged at the lower end of the continuous ramp 37 and used for lifting the steel ball 39 from the lower end of the continuous ramp 37 to the steel ball inlet 3411 of the movable sleeve 341. According to the invention, the continuous ramp 37 and the lifting mechanism are utilized to automatically recover and fill the steel ball 39, the steel ball 39 rolls to the lifting mechanism along the automatic ramp after falling from the drawing hole 322, the lifting mechanism lifts the steel ball 39 into the tube cavity of the movable sleeve 341, and the recovery and filling of the steel ball 39 do not need any manual operation, so that the full-automatic production in the true sense is realized, and the processing efficiency is improved.
Preferably, as shown in fig. 1, 5, and 6, the lifting mechanism includes a vertically disposed lifting channel 38 and a lifting block 381 slidably disposed in the lifting channel 38 along a vertical direction, a top surface of the lifting block 381 is a slope surface parallel to a slope surface of a lower end of the continuous ramp 37, a feed inlet communicated with a lower end of the continuous ramp 37 is disposed on a sidewall of a lower end of the lifting channel 38, an auxiliary ramp 386 is disposed at an upper end of the lifting channel 38, a slope surface of the auxiliary ramp 386 is parallel to a top surface of the lifting block 381, a discharge outlet communicated with an upper end of the auxiliary ramp 386 is disposed on a sidewall of an upper end of the lifting channel 38, and a lower end of the auxiliary ramp 386 is communicated with the steel ball inlet 3411 of the movable. The top surface of the lifting block 381 is arranged in parallel with the slope surface at the lower end of the continuous ramp 37, so that the steel ball 39 is prevented from falling back onto the continuous ramp 37 when the lifting block 381 is lifted.
Further, as shown in fig. 1 and 5, a linkage mechanism is arranged between the lifting block 381 and the second push rod 34, the linkage mechanism is configured such that when the second push rod 34 moves in a direction away from the first push rod 33, the second push rod 34 drives the lifting block 381 to move upwards, and when the second push rod 34 moves in a direction close to the first push rod 33, the second push rod 34 drives the lifting block 381 to move downwards. Specifically, the linkage mechanism includes a lifting rope 384, a vertical groove 383 is arranged on the side wall of the lifting channel 38, a convex column 382 is arranged at a position, corresponding to the vertical groove 383, on the side wall of the lifting block 381, the convex column 382 passes through the vertical groove 383 and protrudes to the outer side of the lifting channel 38, a fixed pulley 385 is arranged at the upper end of the lifting channel 38, one end of the lifting rope 384 is fixedly connected with the convex column 382, and the other end of the lifting rope is wound around the fixed pulley 385 and fixedly connected with a connecting plate 343 fixedly arranged on the second top rod 34. The invention realizes the linkage action of the lifting mechanism and the second ejector rod 34 by utilizing the linkage mechanism, the lifting block 381 descends when the second ejector rod 34 is ejected out, the recovered steel ball 39 automatically rolls onto the lifting block 381, the lifting block 381 ascends when the second ejector rod 34 contracts, the steel ball 39 is lifted to the upper end of the auxiliary ramp 386, the steel ball 39 rolls along the auxiliary ramp 386 and falls into the movable sleeve 341, the lifting mechanism does not need to be driven independently, the equipment structure is simplified, and the equipment cost is reduced.
Further, as shown in fig. 3, the movable sleeve 341 is slidably connected to the frame 1 where the auxiliary ramp 386 is located, and the movable sleeve 341 is configured to be switched between: at the first station, the movable sleeve 341 moves towards the direction of the first top rod 33 and is butted with the pipe, and at the second station, the movable sleeve 341 moves towards the direction far away from the first top rod 33 and is separated from the pipe; a fourth elastic unit 342 is disposed between the second top bar 34 and the movable sleeve 341, the fourth elastic unit 342 is assembled such that its elastic force can drive the movable sleeve 341 to move toward the direction close to the first top bar 33 relative to the second top bar 34, and a limit portion 344 for preventing the movable sleeve 341 from separating from the second top bar 34 is disposed between the inner wall of the movable sleeve 341 and the second top bar 34. When the first ejector rod 33 and the second ejector rod 34 are close to each other, the movable sleeve 341 is firstly butted with a pipe fitting to form a closed channel, so that the steel ball 39 can smoothly roll into the pipe fitting from the movable sleeve 341 under the pushing of the second ejector rod 34, and after the first ejector rod 33 and the second ejector rod 34 are separated from the pipe fitting, the movable sleeve 341 can be separated from the pipe fitting under the driving of the second ejector rod 34, thereby ensuring that the interference with the movable sleeve 341 is not generated in the pipe fitting demolding process.
Preferably, as shown in fig. 1, 3 and 5, the upper end of the upper clamping block 31 and the lower end of the lower clamping block 32 are respectively provided with a first wedge surface and a second wedge surface, a fifth elastic unit 311 and a sixth elastic unit 321 are respectively arranged between the upper clamping block 31 and the frame 1 and between the lower clamping block 32 and the frame 1, and the fifth elastic unit 311 and the sixth elastic unit 321 are assembled such that the elastic force thereof can drive the upper clamping block 31 and the lower clamping block 32 to move away from each other; and a first wedge driving block 35 and a second wedge driving block 36 which are respectively matched with the first wedge surface and the second wedge surface are fixedly connected to the first ejector rod 33, and when the first ejector rod 33 moves towards the direction of the second ejector rod 34, the first wedge driving block 35 and the second wedge driving block 36 drive the upper clamping block 31 and the lower clamping block 32 to be mutually folded. According to the invention, the linkage action of the upper clamping block 31, the lower clamping block 32 and the first ejector rod 33 is realized by utilizing the first wedge driving block 35 and the second wedge driving block 36, the opening and closing action between the upper clamping block 31 and the lower clamping block 32 is driven by utilizing the telescopic action of the first ejector rod 33, the driving structure is further simplified, and the equipment cost is reduced. The first ram 33 and the second ram 34 of the present invention are each driven by a separate horizontal piston cylinder.
Further, as shown in fig. 7-11, the first plunger 33 includes a rod 331 and a movable head 332 disposed at an end of the rod 331, the movable head 332 is movably arranged relative to the rod body 331 along the axial direction of the rod body 331, the movable head 332 is provided with a side push block 333, the side push block 333 is arranged along the movable head 332 in a sliding manner, a transmission mechanism is arranged between the rod body 331 and the movable head 332, the transmission mechanism is configured to drive the side push block 333 to slide along the movable head 332 radially outwards when the movable head 332 and the rod body 331 approach each other, and when the movable head 332 and the rod body 331 are far away from each other, the transmission mechanism can drive the side pushing block 333 to slide radially inwards along the movable head 332, a seventh elastic unit 336 is arranged between the rod body 331 and the movable head 332, and the seventh elastic unit 336 is assembled such that the elastic force thereof can drive the movable head 332 and the rod body 331 to move away from each other; a locking mechanism is arranged between the movable head 332 and the side pushing block 333, the locking mechanism is provided with two stations of locking and unlocking, the movable head 332 and the rod body 331 can be prevented from approaching each other when the locking mechanism is locked, and the movable head 332 and the rod body 331 can approach each other when the locking mechanism is unlocked; the locking mechanism is in a locking state in a normal state, the end face of the movable head 332 is provided with an unlocking mechanism, and when the end face is abutted against the end face of the second ejector rod 34, the unlocking mechanism can be extruded to unlock the locking mechanism. The first ejector rod 33 is arranged in a split structure, and has the following functions: when the length of the side hole flanging is longer, particularly the length of the side hole flanging is larger than the radius of the steel ball 39, the steel ball 39 is clamped in the flanging after being separated from the inner cavity of the pipe fitting, and the first ejector rod 33 can not push the steel ball 39 any more, so that the steel ball 39 is clamped; and this application has installed side push mechanism additional on first ejector pin 33, breaks away from the back when steel ball 39 and pipe fitting inner chamber, and side push mechanism moves, continues to impel steel ball 39 along side opening axis direction to ensure that steel ball 39 can break away from with the side opening completely, avoid steel ball 39 card to die, its concrete principle is: when the first ejector rod 33 is not abutted against the second ejector rod 34, the locking mechanism is in a locking state, the movable head 332 and the rod body 331 do not generate relative displacement, so that the movable head 332 can provide enough extrusion thrust for the steel ball 39, when the first ejector rod 33 is abutted against the second ejector rod 34, the steel ball 39 just completely enters the side hole of the pipe fitting, the unlocking mechanism is triggered by the second ejector rod 34, the locking mechanism is unlocked, the movable head 332 is kept still due to the blocking of the second ejector rod 34, the rod body 331 continues to push, the transmission mechanism drives the side push block 333 to push out towards the side hole, the steel ball 39 continues to push outwards, and finally the steel ball 39 falls off from the side hole.
Specifically, the transmission mechanism comprises a push rod 334 arranged on the rod body 331 and a guide plate 335 arranged on the side push block 333, wherein a guide pin 3341 is arranged at the end of the push rod 334, a bar-shaped guide hole 3351 is formed in the guide plate 335, the bar-shaped guide hole 3351 is obliquely arranged, and the guide pin 3341 and the bar-shaped guide hole 3351 form a sliding fit. The locking mechanism comprises a locking hole 3332 formed in the side push block 333 and a slide way 3331 communicated with the locking hole 3332, a locking block 337 is arranged in the locking hole 3332, the locking block 337 is movably arranged between the locking hole 3332 and the slide way 3331, an eighth elastic unit 339 is arranged between the locking block 337 and the movable head 332, and the eighth elastic unit 339 is assembled in a way that the elastic force of the eighth elastic unit 339 can drive the locking block 337 to move from the slide way 3331 into the locking hole; the release mechanism includes the depression bar 338 with the rigid coupling of locking piece 337, the depression bar 338 slides along the direction that is on a parallel with the body of rod 331 and sets up in the activity head 332, the one end protrusion in the terminal surface setting of activity head 332 that locking piece 337 was kept away from to depression bar 338, still be equipped with in the side ejector pad 333 with locking hole 3332 intercommunication, parallel and the width of slide 3331 is narrower than the groove 3333 of dodging of slide 3331 width, dodge the groove 3333 and be used for dodging the depression bar 338. A plurality of fan-shaped convex columns are arranged on the end faces, opposite to the rod body 331 and the movable head 332, in a staggered mode along the circumferential direction, the fan-shaped convex columns are inserted in a staggered mode, a cylindrical cavity is formed between the fan-shaped convex columns, and the seventh elastic unit 336 is a pressure spring located in the cylindrical cavity.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.
Claims (10)
1. The utility model provides a pipe fitting side opening drawing device which characterized in that: the pipe fitting comprises an upper clamping block (31) and a lower clamping block (32) which are opened and closed along the vertical direction, wherein a semicircular groove is formed in the bottom surface of the upper clamping block (31) and the top surface of the lower clamping block (32), when the upper clamping block (31) and the lower clamping block (32) are clamped tightly, the two semicircular grooves are spliced into a cylindrical cavity for accommodating a pipe fitting, a drawing hole (322) is formed in the bottom of the semicircular groove of the lower clamping block (32), a first ejector rod (33) and a second ejector rod (34) are respectively arranged at two ends of the cylindrical cavity, the first ejector rod (33) and the second ejector rod (34) are opened and closed along the axis direction of the cylindrical cavity, a steel ball (39) is arranged between the first ejector rod (33) and the second ejector rod (34), the end part of the first ejector rod (33) is provided with an inclined surface, and when the first ejector rod (33) and the second ejector rod (34) are closed, the steel ball (39) in the pipe fitting moves outwards under the pushing and expands the side hole (322) under the action of the inclined surface to expand and the edge forms a turnover surface which protrudes to the outer side of the pipe fitting; a movable sleeve (341) is arranged outside the second ejector rod (34), the movable sleeve (341) is in sliding fit with the second ejector rod (34), and a steel ball inlet (3411) is formed in the wall of the movable sleeve (341); a continuous ramp (37) is arranged below the lower clamping block (32), the lower end of the drawing hole (322) is communicated with the upper end of the continuous ramp (37), a lifting mechanism is arranged at the lower end of the continuous ramp (37), and the lifting mechanism is used for lifting a steel ball (39) from the lower end of the continuous ramp (37) to a steel ball inlet (3411) of the movable sleeve (341).
2. The tube side hole drawing device according to claim 1, wherein: the lifting mechanism comprises a vertically arranged lifting channel (38) and a lifting block (381) arranged in the lifting channel (38) in a sliding mode along the vertical direction, the top surface of the lifting block (381) is a slope surface parallel to the slope surface of the lower end of a continuous ramp (37), a feeding hole communicated with the lower end of the continuous ramp (37) is formed in the side wall of the lower end of the lifting channel (38), an auxiliary ramp (386) is arranged at the upper end of the lifting channel (38), the slope surface of the auxiliary ramp (386) is parallel to the top surface of the lifting block (381), a discharging hole communicated with the upper end of the auxiliary ramp (386) is formed in the side wall of the upper end of the lifting channel (38), and the lower end of the auxiliary ramp (386) is communicated with a steel ball inlet (3411) of a movable.
3. The tube side hole drawing device according to claim 2, wherein: be equipped with link gear between elevator (381) and the second ejector pin (34), link gear is assembled when second ejector pin (34) move to the direction of keeping away from first ejector pin (33), and second ejector pin (34) drive elevator (381) and go upward, and when second ejector pin (34) move to the direction of being close to first ejector pin (33), second ejector pin (34) drive elevator (381) down.
4. The tube side hole drawing device according to claim 3, wherein: the link gear includes lifting rope (384), be equipped with a vertical strip groove (383) on lifting channel (38) lateral wall, correspond position department with vertical strip groove (383) on lifting block (381) lateral wall and be equipped with a projection (382), projection (382) pass vertical strip groove (383) and the protruding pole to lifting channel (38) outside, lifting channel (38) upper end is equipped with fixed pulley (385), lifting rope (384) one end and projection (382) rigid coupling, the other end is walked around fixed pulley (385) and with second ejector pin (34) on fixed connection board (343) the rigid coupling that sets up.
5. The tube side hole drawing device according to claim 2, wherein: the movable sleeve (341) is connected with the frame (1) where the auxiliary ramp (386) is located in a sliding manner, and the movable sleeve (341) is assembled to be switched between the following two stations: in the first station, the movable sleeve (341) moves towards the direction of the first ejector rod (33) and is butted with the pipe fitting, and in the second station, the movable sleeve (341) moves towards the direction far away from the first ejector rod (33) and is separated from the pipe fitting; a fourth elastic unit (342) is arranged between the second ejector rod (34) and the movable sleeve (341), the fourth elastic unit (342) is assembled to enable the elastic force of the fourth elastic unit to drive the movable sleeve (341) to move towards the direction close to the first ejector rod (33) relative to the second ejector rod (34), and a limiting part (344) for preventing the movable sleeve (341) from being separated from the second ejector rod (34) is arranged between the inner wall of the movable sleeve (341) and the second ejector rod (34).
6. The tube side hole drawing device according to claim 1, wherein: the upper end of the upper clamping block (31) and the lower end of the lower clamping block (32) are respectively provided with a first wedge surface and a second wedge surface, a fifth elastic unit (311) and a sixth elastic unit (321) are respectively arranged between the upper clamping block (31), the lower clamping block (32) and the rack (1), and the fifth elastic unit (311) and the sixth elastic unit (321) are assembled to enable the elastic force thereof to drive the upper clamping block (31) and the lower clamping block (32) to be away from each other; and a first wedge driving block (35) and a second wedge driving block (36) which are respectively matched with the first wedge surface and the second wedge surface are fixedly connected to the first ejector rod (33), and when the first ejector rod (33) moves towards the direction of the second ejector rod (34), the first wedge driving block (35) and the second wedge driving block (36) drive the upper clamping block (31) and the lower clamping block (32) to be mutually folded.
7. The tube side hole drawing device according to claim 1, wherein: the first ejector rod (33) comprises a rod body (331) and a movable head (332) arranged at the end of the rod body (331), the movable head (332) is movably arranged relative to the rod body (331) along the axis direction of the rod body (331), a side push block (333) is arranged on the movable head (332), the side push block (333) is arranged along the movable head (332) in a radial sliding manner, a transmission mechanism is arranged between the rod body (331) and the movable head (332), the transmission mechanism can drive the side push block (333) to radially outwardly slide along the movable head (332) when the movable head (332) and the rod body (331) are close to each other, the transmission mechanism can drive the side push block (333) to radially inwardly slide along the movable head (332) when the movable head (332) and the rod body (331) are far away from each other, a seventh elastic unit (336) is arranged between the rod body (331) and the movable head (332), the seventh elastic unit (336) is arranged such that the elastic force thereof can drive the movable head (332) and the lever body (331) away from each other; a locking mechanism is arranged between the movable head (332) and the side push block (333), the locking mechanism is provided with two stations of locking and unlocking, when the locking mechanism is locked, the movable head (332) and the rod body (331) can be prevented from approaching each other, and when the locking mechanism is unlocked, the movable head (332) and the rod body (331) can approach each other; the locking mechanism is in a locking state in a normal state, the end face of the movable head (332) is provided with an unlocking mechanism, and when the end face is abutted against the end face of the second ejector rod (34), the unlocking mechanism can be extruded to unlock the locking mechanism.
8. The tube side hole drawing device according to claim 7, wherein: drive mechanism includes push rod (334) and the side ejector pad (333) that sets up on the body of rod (331) and guide board (335), push rod (334) tip is equipped with guide pin (3341), bar pilot hole (3351) has been seted up on guide board (335), and bar pilot hole (3351) slope sets up, guide pin (3341) and bar pilot hole (3351) constitute sliding fit.
9. The tube side hole drawing device according to claim 7, wherein: the locking mechanism comprises a locking hole (3332) formed in the side push block (333) and a slide way (3331) communicated with the locking hole (3332), a locking block (337) is arranged in the locking hole (3332), the locking block (337) is movably arranged between the locking hole (3332) and the slide way (3331), an eighth elastic unit (339) is arranged between the locking block (337) and the movable head (332), and the eighth elastic unit (339) is assembled in a way that the elastic force of the eighth elastic unit can drive the locking block (337) to move from the slide way (3331) to the locking hole; release mechanism includes depression bar (338) with the rigid coupling of locking piece (337), depression bar (338) slide along the direction that is on a parallel with the body of rod (331) and set up in activity head (332), the one end protrusion in the terminal surface setting of activity head (332) of locking piece (337) is kept away from in depression bar (338), still be equipped with in side pushing block (333) with locking hole (3332) intercommunication, with slide (3331) parallel and the width is narrower than groove of dodging (3333) of slide (3331) width, dodge groove (3333) and be used for dodging depression bar (338).
10. The tube side hole drawing device according to claim 7, wherein: the end faces, opposite to the rod body (331) and the movable head (332), of the rod body (331) are circumferentially and alternately provided with a plurality of fan-shaped convex columns, the fan-shaped convex columns are alternately inserted, a cylindrical cavity is formed between the fan-shaped convex columns, and the seventh elastic unit (336) is a pressure spring located in the cylindrical cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911252071.XA CN110814135B (en) | 2019-12-09 | 2019-12-09 | Pipe side opening drawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911252071.XA CN110814135B (en) | 2019-12-09 | 2019-12-09 | Pipe side opening drawing device |
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| Publication Number | Publication Date |
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| CN110814135A true CN110814135A (en) | 2020-02-21 |
| CN110814135B CN110814135B (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911252071.XA Active CN110814135B (en) | 2019-12-09 | 2019-12-09 | Pipe side opening drawing device |
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| CN (1) | CN110814135B (en) |
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| CN109877183A (en) * | 2019-02-22 | 2019-06-14 | 四川龙立可不锈钢管业有限公司 | A kind of bypass branch pipe processing method of pipeline |
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|---|---|---|---|---|
| DE401475C (en) * | 1922-03-19 | 1924-09-04 | Hymmen Theodor | Device for the production of nozzles from the full wall of hollow bodies |
| JPS57142725A (en) * | 1981-03-02 | 1982-09-03 | Hitachi Ltd | Method and apparatus for burring of tube |
| JPS5933036A (en) * | 1982-08-17 | 1984-02-22 | Mie Horo Kk | Manufacture of branch pipe joint |
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| CN204867111U (en) * | 2015-08-20 | 2015-12-16 | 成都市鸿侠科技有限责任公司 | Thin wall spare side opening turn -ups forming die |
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| CN109877183A (en) * | 2019-02-22 | 2019-06-14 | 四川龙立可不锈钢管业有限公司 | A kind of bypass branch pipe processing method of pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110814135B (en) | 2021-04-09 |
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