CN217570545U

CN217570545U - Sectional flaring die

Info

Publication number: CN217570545U
Application number: CN202221486215.5U
Authority: CN
Inventors: 樊健; 谭小文; 殷克贵; 汪磊
Original assignee: Baolong Anhui Auto Parts Co ltd
Current assignee: Baolong Anhui Auto Parts Co ltd
Priority date: 2022-06-14
Filing date: 2022-06-14
Publication date: 2022-10-14
Anticipated expiration: 2032-06-14

Abstract

The utility model provides a sectional flaring die, which comprises a lower template, an upper template, two first driving mechanisms and a second driving mechanism; the flaring core die is mounted on the lower template and comprises a plurality of die flaps which are distributed in a circumferential manner, a flaring cavity is formed among the die flaps, female dies are slidably mounted at two sides of the flaring core die on the lower template, forming cavities are formed at one sides of the two female dies, which are close to each other, and the two first driving mechanisms are respectively used for driving the two female dies to move for die assembly or demolding; the upper template is located above the lower template and is driven by a second driving mechanism to move up and down in the vertical direction, the flaring male die is installed at the bottom end of the upper template and is coaxially arranged with the flaring core die, and the bulging core rod coaxially arranged with the flaring male die is arranged at the bottom end of the flaring male die. The utility model discloses make preforming flaring process and part flaring process merge, reduce cost improves production efficiency greatly.

Description

Sectional flaring die

Technical Field

The utility model relates to a pipe fitting flaring technical field especially relates to a segmentation flaring mould.

Background

At present, because a plurality of automobile manufacturers exist and the diameters of parts designed by each automobile manufacturer are different, pipes with various specifications are needed in the actual process, the cost of one set of pipe making mould is as high as one hundred thousand, the pipe making mould can only be used as the pipe with the common diameter, the pipe with the abnormal diameter needs to be realized by small-pipe-diameter flaring or sheet lofting, rolling and welding flaring, a flaring pre-forming process needs to be added before flaring forming of the parts to reach the needed pipe diameter, the cost is high, and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

Based on the technical problem who exists among the background art, the utility model provides a segmentation flaring die.

The utility model provides a sectional flaring die, which comprises a lower template, an upper template, two first driving mechanisms and a second driving mechanism; the flaring mandrel is installed on the lower template and comprises a plurality of die flaps, the die flaps are distributed circumferentially, a flaring cavity is formed between the die flaps, female dies are installed on the lower template in a sliding mode and located on two sides of the flaring mandrel, forming cavities are formed in one side, close to each other, of each of the two female dies, and the two first driving mechanisms are respectively used for driving the two female dies to move to perform die assembly or demolding; the upper template is located above the lower template and is driven by a second driving mechanism to move up and down in the vertical direction, the flaring male die is installed at the bottom end of the upper template and is coaxially arranged with the flaring core die, and the bulging core rod coaxially arranged with the flaring male die is arranged at the bottom end of the flaring male die.

Preferably, seted up the mounting groove on the lower bolster, the mounting groove internal fixation has the backing plate, the flaring mandrel setting on the backing plate and backing plate middle part set up with the recess of bulging plug looks adaptation, lie in backing plate circumference on the lower bolster and be fixed with a plurality of locating pieces, a plurality of locating pieces set up with a plurality of mould lamella one-to-ones respectively, the constant head tank that supplies the locating piece card to go into is seted up to the mould lamella bottom.

Preferably, the bottom ends of the die sections are provided with clamping grooves, the clamping grooves are spliced to form annular grooves, and elastic clamps are arranged in the annular grooves.

Preferably, still include the bottom plate, the bottom plate is fixed on the lower bolster and the bottom plate middle part runs through and has seted up the through-hole, and the flaring mandrel setting is in the through-hole, and two die relative sliding installs on the bottom plate, lie in die both sides position on the bottom plate and all install to support to press at the die lateral part and with die sliding fit's clamp plate.

Preferably, still be provided with first stopper and second stopper on the bottom plate, first stopper, the second stopper is located flaring mandrel both sides and first stopper, the line direction of two dies of second stopper line direction perpendicular to, the die has been close to flaring mandrel one side both ends and has been seted up first spacing groove respectively, the second spacing groove, under the compound die state, the first spacing groove amalgamation of two dies forms first spacing chamber and first stopper joint in first spacing intracavity, the second spacing groove amalgamation of two dies forms the spacing chamber of second and the joint of second stopper in the spacing intracavity of second.

Preferably, two baffles are arranged on the lower template at the position, away from the flaring core mold, of the female mold, a first driving mechanism arranged on the lower template is arranged between the two baffles, the first driving mechanism adopts an air cylinder, and a telescopic rod of the air cylinder is connected with the female mold.

Preferably, two inserting plates are further mounted at the bottom end of the upper template and located on two sides of the flaring male die, and in the die closing state, the two inserting plates are respectively arranged on one sides, away from each other, of the two female dies and abutted against the female dies, one sides, away from the female dies, of the inserting plates are abutted against the two baffle plates, and the bottom ends of the inserting plates are provided with avoiding grooves for avoiding the telescopic rods of the air cylinders.

Preferably, the top end of the female die is provided with a stripper plate.

The utility model provides a pair of segmentation flaring mould, through mutually supporting of flaring mandrel, die, flaring terrace die and bulging plug, make preforming flaring process and part flaring process merge, and reduce cost improves production efficiency greatly.

Drawings

Fig. 1 is a schematic structural view of a sectional flaring die according to the present invention;

fig. 2 is a sectional view of a sectional flaring die according to the present invention;

fig. 3 is a partial structure view of a sectional flaring die according to the present invention;

fig. 4 is an assembly view of the flaring core mold and the lower fixing plate in the sectional flaring mold according to the present invention;

fig. 5 is an assembly view of a lower fixing plate in the sectional flaring die according to the present invention;

fig. 6 is a schematic structural view of a flaring core mold in the staged flaring mold according to the present invention;

fig. 7 is an assembly view of the flaring core mold and the positioning block in the sectional flaring mold according to the present invention;

fig. 8 is a schematic structural view of a female die in a sectional flaring die according to the present invention;

fig. 9 is a flow chart of flaring of the pipe fitting of the present invention.

Detailed Description

Referring to fig. 1 to 8, the present invention provides a sectional flaring die, which includes a lower template 1, an upper template 2, two first driving mechanisms 3 and a second driving mechanism; wherein:

install flaring mandrel 4 on the lower bolster 1, flaring mandrel 4 includes a plurality of lamella, and a plurality of lamella are that the circumference distributes and form the chamber of expanding between a plurality of lamella, and draw-in groove and a plurality of draw-in groove amalgamation form the ring channel have all been seted up to a plurality of lamella bottoms, are provided with elasticity clamp 11 in the ring channel. Equal slidable mounting in 4 both sides positions of flaring mandrel has die 5 on lower bolster 1, and two dies 5 are close to one side each other and have all been seted up into the die cavity, and the flitch 21 that takes off is installed on 5 tops of die, and two actuating mechanism 3 are used for driving two dies 5 respectively and remove and carry out the compound die or the drawing of patterns.

The upper template 2 is located the lower template 1 top and the upper template 2 is reciprocated in vertical direction by the drive of second actuating mechanism, and flaring terrace die 6 and the coaxial setting of flaring mandrel 4 are installed to 2 bottoms of upper template, and 6 bottoms of flaring terrace die are provided with rather than the bloated plug 7 of coaxial setting.

In this embodiment, as shown in fig. 2, 6, and 7, a mounting groove is formed in the lower template 1, a backing plate 8 is fixed in the mounting groove, the flaring core mold 4 is disposed on the backing plate 8, a groove adapted to the bulging core rod 7 is formed in the middle of the backing plate 8, a plurality of positioning blocks 9 are circumferentially fixed on the lower template 1 on the backing plate 8, the positioning blocks 9 are respectively disposed in one-to-one correspondence with the mold halves, and positioning grooves 10 for the positioning blocks 9 to be clamped into are formed in the bottom ends of the mold halves.

In a specific embodiment, as shown in fig. 1 to 5, the die holder further includes a lower fixing plate 12, the lower fixing plate 12 is fixed on the lower mold plate 1, a through hole is formed in the middle of the lower fixing plate 12, the flaring core mold 4 is disposed in the through hole, the two dies 5 are slidably mounted on the lower fixing plate 12 relatively, and pressing plates 13 which press against the side portions of the dies 5 and are slidably engaged with the dies 5 are mounted on the lower fixing plate 12 at two sides of the dies 5.

Further, as shown in fig. 5 and 8, the lower fixing plate 12 is further provided with a first limiting block 14 and a second limiting block 15, the first limiting block 14 and the second limiting block 15 are located at two sides of the flaring core mold 4, a connecting direction of the first limiting block 14 and the second limiting block 15 is perpendicular to a connecting direction of the two concave molds 5, and two ends of one side of the concave mold 5, which is close to the flaring core mold 4, are respectively provided with a first limiting groove 16 and a second limiting groove 17. Under the matched die state, the first spacing grooves 16 of the two female dies 5 are spliced to form a first spacing cavity and the first limiting blocks 14 are clamped in the first spacing cavity, and the second spacing grooves 17 of the two female dies 5 are spliced to form a second spacing cavity and the second limiting blocks 15 are clamped in the second spacing cavity. The two female dies 5 are moved and limited through the first limiting block 14 and the second limiting block 15, and the female dies 5 are ensured to be in place to complete die assembly.

Further, as shown in fig. 1 to 4, two baffles 18 are installed on the lower template 1 at a position of the female die 5 away from the flaring core die 4, a first driving mechanism 3 installed on the lower template 1 is arranged between the two baffles 18, the first driving mechanism 3 adopts an air cylinder, and an expansion link of the air cylinder is connected with the female die 5. Two inserting plates 19 are further mounted at the bottom end of the upper template 2, the two inserting plates 19 are located on two sides of the flaring male die 6, in a die closing state, the two inserting plates 19 are respectively arranged on one sides, away from the two female dies 5, of the two female dies 5, the inserting plates 19 are pressed against the female dies 5, one sides, away from the female dies 5, of the inserting plates 19 are pressed against the two baffle plates 18, and an avoiding groove 20 for avoiding the telescopic rod of the air cylinder is formed in the bottom end of the inserting plates 19.

When the flaring mandrel is used, a pipe fitting a to be flared is firstly sleeved on a flaring mandrel 4, two cylinders 3 respectively drive two female dies 5 to move for die assembly, a second driving mechanism drives an upper die plate 2 to move downwards, a plug plate 19 is inserted between the female dies 5 and a baffle 18, the plug plate 19 presses the female dies 5 to lock the two female dies 5, meanwhile, a bulging mandrel 7 enters a bulging cavity of the flaring mandrel 4, the bulging mandrel 7 extrudes a die flap to prop open the flaring mandrel 4, so that the diameter of the lower part of the pipe fitting a is firstly enlarged, and a first section of flaring is completed; the upper template 2 continues to move downwards, the flaring male die 6 enters the upper part of the pipe fitting a, the flaring male die 6 props up the upper part of the pipe fitting a, the diameter of the upper part of the pipe fitting a is expanded under the combined action of the flaring male die 6 and the female die 5, and the flaring of the second end is completed; the upper template 2 moves upwards, the cylinder 3 drives the two female dies 5 to be away from each other for demoulding, and then a product can be taken out, and the front and back changes of the flaring of the pipe fitting a are shown in figure 9.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The sectional flaring die is characterized by comprising a lower template (1), an upper template (2), two first driving mechanisms (3) and a second driving mechanism; the flaring core die (4) is mounted on the lower die plate (1), the flaring core die (4) comprises a plurality of die flaps which are distributed in a circumferential manner, a bulging cavity is formed between the die flaps, female dies (5) are mounted on the lower die plate (1) in a sliding manner at positions on two sides of the flaring core die (4), the two female dies are close to each other, forming cavities are formed in one side of the two female dies, and the two first driving mechanisms (3) are respectively used for driving the two female dies (5) to move for die assembly or demoulding; the upper template (2) is located lower bolster (1) top and upper template (2) is reciprocated in vertical direction by the drive of second actuating mechanism, and flaring terrace die (6) and the coaxial setting of flaring mandrel (4) are installed to upper template (2) bottom, and flaring terrace die (6) bottom is provided with bulging plug (7) rather than the coaxial setting.

2. The sectional flaring die of claim 1, wherein a mounting groove is formed in the lower die plate (1), a base plate (8) is fixed in the mounting groove, the flaring core die (4) is arranged on the base plate (8), a groove matched with the bulging core rod (7) is formed in the middle of the base plate (8), a plurality of positioning blocks (9) are circumferentially fixed on the lower die plate (1) on the base plate (8), the positioning blocks (9) are respectively arranged in one-to-one correspondence with the die segments, and positioning grooves (10) for the positioning blocks (9) to be clamped are formed in the bottom ends of the die segments.

3. The segmental flaring die of claim 2, wherein the bottom ends of the plurality of die segments are provided with clamping grooves and the clamping grooves are spliced to form an annular groove, and an elastic clamping hoop (11) is arranged in the annular groove.

4. The section flaring die according to any one of claims 1 to 3, characterized in that, further comprises a lower fixing plate (12), the lower fixing plate (12) is fixed on the lower die plate (1), a through hole is arranged in the middle of the lower fixing plate (12) in a penetrating manner, the flaring core die (4) is arranged in the through hole, the two female dies (5) are installed on the lower fixing plate (12) in a relatively sliding manner, and pressing plates (13) which are pressed against the side parts of the female dies (5) and are in sliding fit with the female dies (5) are installed on the lower fixing plate (12) at the positions on the two sides of the female dies (5).

5. The section flaring die of claim 4, characterized in that a first limiting block (14) and a second limiting block (15) are further arranged on the lower fixing plate (12), the first limiting block (14) and the second limiting block (15) are positioned on two sides of the flaring core die (4), the connecting direction of the first limiting block (14) and the second limiting block (15) is perpendicular to the connecting direction of the two female dies (5), a first limiting groove (16) and a second limiting groove (17) are respectively formed in two ends of one side of the female die (5) close to the flaring core die (4), in the die assembly state, the first limiting grooves (16) of the two female dies (5) are spliced to form a first limiting cavity, the first limiting block (14) is clamped in the first limiting cavity, and the second limiting grooves (17) of the two female dies (5) are spliced to form a second limiting cavity, and the second limiting block (15) is clamped in the second limiting cavity.

6. The section flaring die of any one of claims 1 to 3, wherein two baffle plates (18) are mounted on the lower die plate (1) at a position on one side of the female die (5) away from the flaring core die (4), a first driving mechanism (3) mounted on the lower die plate (1) is arranged between the two baffle plates (18), the first driving mechanism (3) adopts a cylinder, and an expansion rod of the cylinder is connected with the female die (5).

7. The section flaring die according to claim 6, characterized in that two inserting plates (19) are further mounted at the bottom end of the upper die plate (2), the two inserting plates (19) are located on two sides of the flaring male die (6), in the die closing state, the two inserting plates (19) are respectively arranged on one sides, away from each other, of the two female dies (5), the inserting plates (19) are pressed against the female dies (5), one sides, away from the female dies (5), of the inserting plates (19) are pressed against the two baffle plates (18), and the bottom end of the inserting plates (19) is provided with an avoiding groove (20) for avoiding the telescopic rod of the cylinder.

8. The segmental flaring die of any one of claims 1 to 3, characterized in that a stripper plate (21) is mounted at the top end of the female die (5).