CN111687302A - Elbow one-step forming tool - Google Patents
Elbow one-step forming tool Download PDFInfo
- Publication number
- CN111687302A CN111687302A CN202010716047.3A CN202010716047A CN111687302A CN 111687302 A CN111687302 A CN 111687302A CN 202010716047 A CN202010716047 A CN 202010716047A CN 111687302 A CN111687302 A CN 111687302A
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- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 238000004080 punching Methods 0.000 claims abstract description 43
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052802 copper Inorganic materials 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 16
- 229910002804 graphite Inorganic materials 0.000 claims description 16
- 239000010439 graphite Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- 238000003754 machining Methods 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
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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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention discloses a bend one-step forming tool which comprises a lower template, a middle template, an upper template, a pipe fitting positioning mechanism, an inclined hole forming mechanism and an end flattening and punching mechanism, wherein the pipe fitting positioning mechanism, the inclined hole forming mechanism and the end flattening and punching mechanism are installed between the lower template and the middle template, the pipe fitting positioning mechanism fixes the position of a pipe fitting, the inclined hole forming mechanism realizes the conversion from vertical movement to horizontal movement by utilizing the matching between an upper inclined block and an inclined sliding block, inclined hole forming on the side surface of the pipe fitting is realized by utilizing an inclined hole punching head installed at the front end of the inclined sliding block, and the end flattening and punching mechanism realizes flattening and punching synchronous operation by utilizing a concave-convex die and an inclined punching head. Whole frock is rational in infrastructure, utilizes the one shot forming that the pushing down of cope match-plate pattern and middle template realized a plurality of positions of return bend in proper order, has promoted holistic machining efficiency.
Description
Technical Field
The invention relates to a forming tool, in particular to a bent pipe one-step forming tool.
Background
At present, products become complex with the diversity and functions of the products increasing; meanwhile, due to the low cost of the punching products, the punching products are more and more popular with the application of the punching machine at home and abroad, the research and development of the punching die are perfect, the punching precision is improved, a plurality of products are produced by punching of the punching machine, for example, the mounting holes on the surface of a pipe fitting are usually punched by adopting a punching head, the bent pipe structure in the drawing 1 is in a bent U shape, the end part of the bent pipe structure is in a flattened structure, the flattened part is also provided with a through hole, the side wall of the bent pipe is provided with an inclined hole structure, and a certain included angle exists between the direction of the.
The elbow pipe aiming at the multiple structures needs to be flattened and punched at the end part through a flattening die in the processing, and the inclined plane punching die is utilized to punch the side edge, however, the existing inclined punching die can not realize one-time accurate punching and needs to be realized by means of a special inclined hole punching die, and the step operation greatly increases the processing time and reduces the processing efficiency.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a one-step forming tool for a bent pipe, which realizes one-step punch forming of an inclined hole by utilizing an upper inclined block, an inclined slide block and an inclined hole punch with a special structure, and simultaneously realizes flattening operation while forming the inclined hole by matching with a flattening and punching structure, so that one-step forming of the bent pipe is realized, and the processing efficiency and the processing precision are improved.
The invention discloses a bend one-step forming tool, which comprises a lower template, a middle template, an upper template, a pipe fitting positioning mechanism, an inclined hole forming mechanism and an end flattening and punching mechanism, wherein the pipe fitting positioning mechanism, the inclined hole forming mechanism and the end flattening and punching mechanism are arranged between the lower template and the middle template, and the lower template and the middle template are respectively provided with a positioning hole and a positioning hole, the inclined hole forming:
the pipe fitting positioning mechanism comprises a positioning block and a material pressing block which are oppositely closed, the positioning block is fixed on the upper surface of the lower template, the material pressing block penetrates through the middle template through a first nitrogen spring and is installed on the back surface of the upper template, a pipe fitting placing groove is formed in the opposite surface of the positioning block and the material pressing block, an inclined sliding groove communicated with the pipe fitting placing groove is formed in the side surface of the positioning block and the material pressing block, the bent pipe is placed in the pipe fitting placing groove of the positioning hole and is;
the inclined hole forming mechanism comprises an upper inclined block, an inclined slide block, two side plates, a spring fixing block, a reset spring, a connecting pin and an inclined hole punch, wherein the upper inclined block penetrates through a middle template and is fixed on the back surface of an upper template, the lower end surface of the upper inclined block is a first inclined surface, the two side plates are fixed on the surface of a lower template, a sliding groove for accommodating the inclined slide block is formed between the two side plates, the rear end of the inclined slide block is a second inclined surface which is matched with the first inclined surface, a waist circular hole is transversely formed in the side plate, the spring fixing block is installed on the outer side surface of the side plate, the connecting pin comprises a first connecting pin, a second connecting pin and a third connecting pin which are sequentially connected, the second connecting pin penetrates through the waist circular hole and the inclined slide block, the first connecting pin and the third connecting pin penetrate through the spring fixing block, the free ends of the first connecting pin and the third connecting pin are sleeved with the reset spring, the end parts of the reset, the upper die plate moves downwards to enable the first inclined surface of the upper inclined block to push the inclined slide block to move forwards along the sliding groove, and an inclined hole punch is pushed to be inserted into the inclined sliding groove to form an inclined hole on the side surface of the bent pipe;
the end part flattening and punching mechanism comprises a female die, a male die, a core rod and an inclined punch, wherein the female die is fixed on the surface of a lower template, a female die insert is embedded in the female die, the male die is fixed on the back surface of a middle template through an adjusting block, the male die is matched with the female die to flatten the end part of a bent pipe, the core rod is installed on the surface of the lower template at the end part of the female die through a core rod fixing block, the core rod is inserted into the bent pipe from the end part, and the inclined punch is installed on the back surface of an upper template through a punch;
and a plurality of second nitrogen springs and limiting columns are arranged between the lower template and the middle template.
Preferably, the second inclined plane is provided with a T-shaped groove, the first inclined plane is provided with a T-shaped sliding block, and the T-shaped sliding block slides back and forth in the T-shaped groove to drive the inclined sliding block to slide back and forth.
Preferably, the inclined hole forming mechanism further comprises a graphite copper sliding plate which is arranged on the surface of the lower die plate and located below the inclined sliding block.
Preferably, the upper surface of the inclined sliding block is fixed with a graphite copper sliding block, and the upper end of the side plate is provided with a cover plate which is attached to the graphite copper sliding block.
Preferably, a double-sliding-sleeve guide structure is further arranged between the upper template and the lower template, and comprises a first sliding guide sleeve embedded in the lower template, a second sliding guide sleeve embedded in the middle template, and a sliding guide pillar mounted on the upper template, wherein the upper template, the middle template and the lower template are mutually matched to realize opening and closing of the upper template, the middle template and the lower template.
Preferably, the inclined hole drift includes linkage segment, spacing section of shaping and punching press section, the tip of punching press section is 45 inclined planes, the spacing section of shaping is protruding structure, and its one side that is close to the punching press section is the inclined plane, and is 147.5 with the contained angle between the punching press section.
Preferably, a plurality of flat wire springs are arranged between the upper template and the middle template.
Preferably, the inclined punch is a 15 ° inclined punch.
Preferably, still include the auxiliary stay frame and install the one side that is close to pipe fitting positioning mechanism at the lower bolster, the auxiliary stay frame includes the base, and two sets of slide bars of establishing in the base in parallel, the slip control piece of suit on the slide bar, establish the stand on the slip control piece perpendicularly, through the cardboard that connecting plate and stand are fixed, be equipped with the draw-in groove that holds the return bend on the cardboard, the slip control piece surface is equipped with the arc standing groove.
The invention has the beneficial effects that: the utility model provides a return bend one shot forming frock, has following beneficial effect:
the switching from up-down movement to horizontal movement is realized by utilizing the upper inclined block to be matched with the inclined sliding block, the one-time punch forming of the inclined hole is realized, and the processing efficiency is improved;
rigid reset is realized by matching the T-shaped groove with the T-shaped sliding block, and the smoothness of the stamping process can be ensured by the elastic reset of the reset spring, and meanwhile, the structure can be prevented from loosening after long-term use;
by adding the graphite copper sliding plate and the graphite copper sliding block, the smoothness of front and back sliding of the inclined sliding block is improved, and the sequential punching is ensured to be in place;
the inclined hole punch with the special structure can ensure that the end part can be quickly punched into the pipe fitting and matched with the raised forming section structure, and can ensure the punching depth and angle;
the 15-degree inclined punch is matched with the second nitrogen spring, the waste material is vertically erected after the first layer of material of the bent pipe is initially punctured during punching, the concave-convex die is utilized to flatten after the hole is punched, and due to the vertical support of the waste material, the deformation depth of the hole is effectively controlled, so that the processing precision requirement is met.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic view of a bent pipe according to the present invention;
FIG. 2 is an overall block diagram of an embodiment of the present invention;
FIG. 3 is a top view of an embodiment of the present invention;
FIG. 4 is a partial cross-sectional view taken at perspective A of FIG. 3;
FIG. 5 is a partial cross-sectional view taken at view B of FIG. 3;
FIG. 6 is a view showing a structure of a lower plate portion in the embodiment of the present invention;
FIG. 7 is a view showing a structure of an upper mold plate portion in the embodiment of the present invention;
fig. 8 is a structural view of an inclined hole punch in the embodiment of the present invention.
In the drawings: 1-inclined hole, 2-flattening structure, 3-through hole, 4-lower template, 5-middle template, 6-upper template, 7-pipe fitting positioning mechanism, 8-inclined hole forming mechanism, 9-end flattening and punching mechanism, 10-double-sliding sleeve guiding mechanism, 11-auxiliary supporting frame, 101-first sliding guide sleeve, 102-second sliding guide sleeve, 103-sliding guide column, 71-positioning block, 72-pressing block, 73-first nitrogen spring, 74-pipe fitting placing groove, 75-inclined sliding groove, 80-upper inclined block, 81-inclined slide block, 82-side plate, 83-spring fixing block, 84-return spring, 85-connecting pin, 86-inclined hole punch head, 801-first inclined plane, 802-T slide block, 811-a second inclined plane, 812-a T-shaped groove, 821-a waist circular hole, 841-a blocking block, 861-a mounting seat, 862-a connecting section, 863-a forming limiting section, 864-a stamping section, 87-a graphite copper sliding plate, 88-a graphite copper sliding block, 89-a cover plate, 91-a female die, 92-a male die, 93-a core rod, 94-an inclined punch head, 95-an adjusting block, 96-a second nitrogen spring, 97-a limiting column, 98-a flat wire spring, 911-a female die insert, 931-a core rod fixing block, 941-a punch head fixing plate, 111-a base, 112-a sliding rod, 113-a sliding adjusting block, 114-a vertical column, 115-a clamping plate, 116-a clamping groove, 117-an arc-shaped placing groove and 12-a bent pipe.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
The invention discloses a one-step forming tool for a bent pipe, which is mainly used for machining an inclined hole 1 on the side face of the bent pipe in a drawing 1, a flattening structure 2 on the end part and a through hole 3 on the flattening structure, and the specific tool structure is shown in the drawings 2-7 and comprises a lower template 4, a middle template 5, an upper template 6, a pipe fitting positioning mechanism 7 arranged between the lower template and the middle template, an inclined hole forming mechanism 8, an end part flattening and punching mechanism 9 and a plurality of double-sliding sleeve guiding mechanisms 10, wherein the upper template, the lower template and the middle template are moved up and down through the double-sliding sleeve guiding mechanisms, the pipe fitting positioning mechanism fixes the position of a pipe fitting, the inclined hole forming mechanism is obliquely arranged relative to the pipe fitting positioning mechanism to punch the inclined hole on the surface of the pipe fitting, and the end part flattening and punching mechanism realizes flattening and punching synchronous operation by utilizing a concave-convex die to.
Specifically, the double-sliding-sleeve guide mechanism comprises a first sliding guide sleeve 101 embedded in the lower template, a second sliding guide sleeve 102 embedded in the middle template, and a sliding guide pillar 102 mounted on the upper template, which cooperate with each other to realize the opening and closing among the upper template, the middle template, and the lower template.
The pipe fitting positioning mechanism comprises a positioning block 71 and a material pressing block 72 which are oppositely closed, the positioning block is fixed on the upper surface of the lower template, the material pressing block penetrates through the middle template through a first nitrogen spring 73 and is installed on the back surface of the upper template, a pipe fitting placing groove 74 is formed in the oppositely-closed surface of the positioning block and the material pressing block, an oblique sliding groove 75 communicated with the pipe fitting placing groove is formed in the side surface of the positioning block and the material pressing block, one end of the bent pipe is placed in the pipe fitting placing groove, the position of the bent pipe to be punched is opposite to the oblique sliding groove, the bent pipe is pressed by the material pressing block along with downward pressing.
The inclined hole forming mechanism comprises an upper inclined block 80, an inclined slide block 81, two side plates 82, a spring fixing block 83, a reset spring 84, a connecting pin 85 and an inclined hole punch 86, wherein the upper inclined block penetrates through a middle template and is fixed on the back surface of an upper template, the lower end surface of the upper inclined block is a first inclined surface 801, the two side plates are fixed on the surface of a lower template, a sliding groove for accommodating the inclined slide block is formed between the two side plates, the rear end of the inclined slide block is a second inclined surface 811 matched with the first inclined surface, waist circular holes 821 are transversely formed in the side plates, the spring fixing block is installed on the outer side surface of the side plates, the connecting pin comprises a first connecting pin, a second connecting pin and a third connecting pin which are sequentially connected in a U shape, the second connecting pin penetrates through the inclined slide block, two ends of the second connecting pin and the third connecting pin penetrate through the waist circular holes, one end of the first connecting pin and one end of the third connecting, the inclined hole punch is fixed at the front end of the inclined sliding block through the mounting seat 861, the free end of the inclined hole punch is inserted into an inclined sliding groove of the pipe fitting positioning mechanism, when the upper inclined block moves downwards, the inclined plane structure enables the inclined sliding block to move forwards, so that the inclined hole punch is punched into the side wall of the bent pipe, and after the upper inclined block is lifted up, the inclined sliding block moves backwards under the action of the reset spring, so that the inclined hole punch is separated from the pipe fitting.
In actual processing, it can 'T ensure that the drift thoroughly resets to rely on only elasticity to reset, and along with the increase of number of times of use, reset spring elasticity reduces moreover, can' T ensure more and reset completely, so be equipped with T type groove 812 on the second inclined plane, install T type slider 802 on the first inclined plane, T type slider makes a round trip to slide in T type inslot, drives oblique slider and slides from beginning to end, realizes rigidity and resets.
In order to promote the smooth and easy nature when slider slides to one side, set up graphite copper slide 87 below slider to one side and install on the lower die plate surface, at slider upper surface mounting graphite copper slider 88 to one side, the curb plate upper end is installed apron 89 and is laminated with graphite copper slider simultaneously, utilizes the smooth and easy nature when the characteristic increase of graphite copper slides.
As shown in fig. 8, the inclined hole punch includes a connecting section 862, a forming limiting section 863 and a stamping section 864, wherein the end of the stamping section is a 45 ° inclined plane, the forming limiting section is a protruding structure, one side of the forming limiting section close to the stamping section is an inclined plane, and an included angle α between the forming limiting section and the stamping section is 147.5 °.
The end flattening and punching mechanism comprises a female die 91, a male die 92, a core rod 93 and an inclined punch 94, wherein the female die is fixed on the surface of a lower template, a female die insert 911 is embedded in the female die, the male die is fixed on the back of a middle template through an adjusting block 95, the end of a bent pipe is flattened through the cooperation of the male die and the female die, the core rod is installed on the surface of the lower template at the end of the female die through a core rod fixing block 931, the core rod is inserted into the bent pipe from the end, the inclined punch is a 15-degree inclined punch which is installed on the back of an upper template through a punch fixing plate 941 and is inserted into the central template and the male die to punch the end of the bent pipe, in order to realize the flattening operation of pressing the bent pipe to the punched hole, a plurality of second nitrogen springs 96 and limiting columns 97 are arranged between the lower template and the middle template, a plurality, and the end part of the bent pipe is pressed in, after the through hole is formed, the second nitrogen spring controls the middle die to move downwards, and the male die downwards cooperates with the female die to realize flattening operation.
Because the elbow is of a U-shaped structure, when one end is processed, the whole and the other end are required to be fixed, so that an auxiliary support frame 11 is required to be arranged on one side of the lower template close to the pipe fitting positioning mechanism in the tooling, the structure of the elbow comprises a base 111, two groups of sliding rods 112 arranged in the base in parallel, a sliding adjusting block 113 sleeved on the sliding rods, a stand column 114 arranged on the sliding adjusting block vertically, a clamping plate 115 fixed with the stand column through a connecting plate, a clamping groove 116 for accommodating the elbow is arranged on the clamping plate, and an arc-shaped placing groove 117 is arranged on the surface of the sliding adjusting block. After one end of the bent pipe is placed in the processing station, the processing surface faces the opposite side and the side surface, so that the bent pipe 12 needs to be in a vertical mode (as shown in figure 1), the clamping groove in the upright post can be fixed, and the sliding adjusting block can be moved back and forth to be suitable for bent pipe supports with different lengths.
In addition, the tool can be provided with two processing positions in parallel, so that the synchronous processing of two bent pipes can be realized, and the efficiency is improved.
The invention discloses a bend one-time forming tool, which comprises the following working processes: insert the return bend one end in the frock, make the plug insert the return bend tip, the order makes the inclined hole processing position just face the slant spout around adjusting this moment, the vertical card of the return bend other end is gone into in the draw-in groove, so fixed global position, control upper die plate moves down during processing, middle template position is unmovable this moment, the pressure material piece closes to with the locating hole and compresses tightly the return bend, along with the continuation of upper die plate moves down, the upper sloping block moves down and makes the inclined hole drift advance, thereby the inclined hole of return bend side is processed, the inclined drift also moves down and punctures the return bend tip simultaneously, process tip through-hole, after the spot facing work is accomplished, control second nitrogen spring makes the middle template move down, the return bend tip is pressed down to the terrace die, form flattening structure, because the support of waste material in the through-hole of beating in advance in the flattening process.
According to the one-step forming tool for the bent pipe, disclosed by the invention, the switching from vertical movement to horizontal movement is realized by utilizing the upper inclined block to be matched with the inclined sliding block, rigid reset is realized by utilizing the T-shaped groove to be matched with the T-shaped sliding block, and the smoothness of a stamping process can be ensured by the elastic reset of the reset spring, and meanwhile, the loosening condition of the structure after long-term use can be prevented; by adding the graphite copper sliding plate and the graphite copper sliding block, the smoothness of front and back sliding of the inclined sliding block is improved, and the sequential punching is ensured to be in place; the inclined hole punch of special structure can ensure that the tip dashes into pipe fitting and cooperation bellied shaping section structure fast, can ensure punching press degree of depth and angle, utilizes 15 degrees inclined punch cooperation second nitrogen springs, makes the waste material erect perpendicularly after the first layer material of return bend is initially punctured when the punching press, begins to utilize the male and female mould to flatten the operation after treating the punch-through, because the vertical braces of waste material, the effectual deformation degree of depth in hole that has controlled makes it reach the machining precision requirement.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (9)
1. The utility model provides a return bend one shot forming frock which characterized in that: including the lower bolster, middle template, cope match-plate pattern to and install the pipe fitting positioning mechanism between lower bolster and middle template, inclined hole forming mechanism and tip flatten the mechanism of punching a hole, wherein:
the pipe fitting positioning mechanism comprises a positioning block and a material pressing block which are oppositely closed, the positioning block is fixed on the upper surface of the lower template, the material pressing block penetrates through the middle template through a first nitrogen spring and is installed on the back surface of the upper template, a pipe fitting placing groove is formed in the opposite surface of the positioning block and the material pressing block, an inclined sliding groove communicated with the pipe fitting placing groove is formed in the side surface of the positioning block and the material pressing block, the bent pipe is placed in the pipe fitting placing groove of the positioning hole and is;
the inclined hole forming mechanism comprises an upper inclined block, an inclined slide block, two side plates, a spring fixing block, a reset spring, a connecting pin and an inclined hole punch, wherein the upper inclined block penetrates through a middle template and is fixed on the back surface of an upper template, the lower end surface of the upper inclined block is a first inclined surface, the two side plates are fixed on the surface of a lower template, a sliding groove for accommodating the inclined slide block is formed between the two side plates, the rear end of the inclined slide block is a second inclined surface which is matched with the first inclined surface, a waist circular hole is transversely formed in the side plate, the spring fixing block is installed on the outer side surface of the side plate, the connecting pin comprises a first connecting pin, a second connecting pin and a third connecting pin which are sequentially connected, the second connecting pin penetrates through the waist circular hole and the inclined slide block, the first connecting pin and the third connecting pin penetrate through the spring fixing block, the free ends of the first connecting pin and the third connecting pin are sleeved with the reset spring, the end parts of the reset, the upper die plate moves downwards to enable the first inclined surface of the upper inclined block to push the inclined slide block to move forwards along the sliding groove, and an inclined hole punch is pushed to be inserted into the inclined sliding groove to form an inclined hole on the side surface of the bent pipe;
the end part flattening and punching mechanism comprises a female die, a male die, a core rod and an inclined punch, wherein the female die is fixed on the surface of a lower template, a female die insert is embedded in the female die, the male die is fixed on the back surface of a middle template through an adjusting block, the male die is matched with the female die to flatten the end part of a bent pipe, the core rod is installed on the surface of the lower template at the end part of the female die through a core rod fixing block, the core rod is inserted into the bent pipe from the end part, and the inclined punch is installed on the back surface of an upper template through a punch;
and a plurality of second nitrogen springs and limiting columns are arranged between the lower template and the middle template.
2. The one-step forming tool for the bent pipe according to claim 1, wherein: the T-shaped groove is formed in the second inclined surface, the T-shaped sliding block is installed on the first inclined surface, and the T-shaped sliding block slides back and forth in the T-shaped groove to drive the inclined sliding block to slide back and forth.
3. The one-step forming tool for the bent pipe according to claim 1, wherein: the inclined hole forming mechanism further comprises a graphite copper sliding plate which is arranged on the surface of the lower die plate and located below the inclined sliding block.
4. The elbow one-step forming tool according to claim 2 or 3, characterized in that: the upper surface of the inclined sliding block is fixed with a graphite copper sliding block, and the upper end of the side plate is provided with a cover plate which is attached to the graphite copper sliding block.
5. The one-step forming tool for the bent pipe according to claim 1, wherein: and a double-sliding-sleeve guide structure is further arranged between the upper template and the lower template and comprises a first sliding guide sleeve embedded in the lower template, a second sliding guide sleeve embedded in the middle template and a sliding guide pillar arranged on the upper template, and the upper template, the middle template and the lower template are mutually matched to realize the opening and closing of the upper template, the middle template and the lower template.
6. The one-step forming tool for the bent pipe according to claim 1, wherein: the inclined hole punch comprises a connecting section, a forming limiting section and a punching section, wherein the end part of the punching section is a 45-degree inclined plane, the forming limiting section is of a protruding structure, one side of the forming limiting section, which is close to the punching section, is an inclined plane, and the included angle between the forming limiting section and the punching section is 147.5 degrees.
7. The one-step forming tool for the bent pipe according to claim 1, wherein: and a plurality of flat wire springs are arranged between the upper template and the middle template.
8. The one-step forming tool for the bent pipe according to claim 1, wherein: the inclined punch is a 15-degree inclined punch.
9. The one-step forming tool for the bent pipe according to claim 1, wherein: still include the auxiliary stay frame and install the one side that is close to pipe fitting positioning mechanism at the lower bolster, the auxiliary stay frame includes the base, and two sets of slide bars of parallel establishment in the base, the slip control piece of suit on the slide bar is established the stand on the slip control piece perpendicularly, through the cardboard of connecting plate with the stand is fixed, be equipped with the draw-in groove that holds the return bend on the cardboard, the slip control piece surface is equipped with the arc standing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010716047.3A CN111687302B (en) | 2020-07-23 | One-step forming tool for bent pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010716047.3A CN111687302B (en) | 2020-07-23 | One-step forming tool for bent pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111687302A true CN111687302A (en) | 2020-09-22 |
| CN111687302B CN111687302B (en) | 2024-11-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113508707A (en) * | 2021-04-23 | 2021-10-19 | 滁州市远洋休闲用品有限公司 | Plant greenhouse and bending and punching device for processing same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201900183U (en) * | 2010-11-20 | 2011-07-20 | 无锡曙光模具有限公司 | Beating and forming punching mould for machining seat and mop of car |
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| CN201900183U (en) * | 2010-11-20 | 2011-07-20 | 无锡曙光模具有限公司 | Beating and forming punching mould for machining seat and mop of car |
| CN102139314A (en) * | 2010-11-20 | 2011-08-03 | 无锡曙光模具有限公司 | Flattening and forming punching dies for machining novel mop of sedan seat |
| CN204603011U (en) * | 2015-02-10 | 2015-09-02 | 厦门伊格特精密机械有限公司 | A kind of flattening of pipe fitting and punch mechanism |
| CN209520249U (en) * | 2017-12-20 | 2019-10-22 | 山东科技大学 | A kind of Wedge type rushes inclined hole mold |
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| CN113508707A (en) * | 2021-04-23 | 2021-10-19 | 滁州市远洋休闲用品有限公司 | Plant greenhouse and bending and punching device for processing same |
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