CN210435130U

CN210435130U - Automobile ring beam forming die

Info

Publication number: CN210435130U
Application number: CN201921197777.6U
Authority: CN
Inventors: 何潇
Original assignee: Chongqing Mingtian Machinery Co ltd
Current assignee: Chongqing Mingtian Machinery Co ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-05-01
Anticipated expiration: 2029-07-26

Abstract

The utility model provides an automobile ring beam forming die belongs to mechanical technical field. The problem that an existing automobile ring beam forming die cannot be matched with a pipe blank in a sealing mode is solved. The automobile ring beam forming die comprises an upper die and a lower die, wherein a first groove is formed in the lower surface of the upper die, a second groove is formed in the upper surface of the lower die, a cavity used for forming an automobile ring beam is formed by the first groove and the second groove when the upper die and the lower die are buckled, a first through hole located between the upper die and the lower die is formed in one end of the cavity, a first liquid injection pipe is arranged in the first through hole in a penetrating mode, a first ejection device used for enabling the front end of the first liquid injection pipe to be in sealing fit with one end of the automobile ring beam is arranged on the lower die, a second through hole located between the upper die and the lower die is formed in the other end of the cavity, a second liquid injection pipe is arranged in the second. The utility model discloses can effectively guarantee the sealed cooperation of injection pipe and tubular product blank, have advantages such as the shaping is effectual.

Description

Automobile ring beam forming die

Technical Field

The utility model belongs to the technical field of machinery, a car collar tie beam forming die is related to.

Background

The automobile ring beam is formed by ① preparing a pipe blank, ② bending and preforming the pipe blank, ③ performing hydraulic integrated forming through special equipment and a mould (refer to CN201800775U engine auxiliary frame assembly), and when the existing forming mould fills hydraulic oil into the pipe blank, a hydraulic oil injection nozzle cannot be accurately matched with the pipe blank, the hydraulic oil is easy to leak, and the forming purpose cannot be achieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided an effectual car collar tie beam forming die of shaping.

The purpose of the utility model can be realized by the following technical proposal:

car circle roof beam forming die, including last mould and lower mould, the lower surface of going up the mould is equipped with recess one, the upper surface of lower mould is equipped with recess two, works as last mould and lower mould lock time recess one constitute the die cavity that is used for shaping car circle roof beam with recess two, its characterized in that, the one end of die cavity is equipped with the through-hole one that is located between last mould and the lower mould, through-hole one in wear to be equipped with notes liquid pipe one, the lower mould on be equipped with the one end that is used for making to annotate liquid pipe one and car circle roof beam seal complex ejecting device one, the other end of die cavity is equipped with the through-hole two that is located between last mould and the lower mould, through-hole two in wear to be equipped with notes liquid pipe two, the lower mould on still be equipped with the other end that is used for making to annotate liquid pipe two.

In the automobile ring beam forming die, the front end of the first liquid injection pipe is conical, the diameters of the front end and the rear end of the first liquid injection pipe are sequentially increased, and the aperture of the end hole at one end of the automobile ring beam is larger than the minimum outer diameter of the front end of the first liquid injection pipe and smaller than the maximum outer diameter of the front end of the first liquid injection pipe; the front end of the second liquid injection pipe is conical, the diameter of the front end of the second liquid injection pipe is sequentially increased from front to back, and the aperture of the end hole at the other end of the automobile ring beam is larger than the minimum outer diameter of the front end of the second liquid injection pipe and smaller than the maximum outer diameter of the front end of the second liquid injection pipe.

In foretell car collar tie beam forming die, ejector one including fix the pneumatic cylinder one on the lower mould and wear to locate the piston rod one in the pneumatic cylinder one, pneumatic cylinder one on be equipped with the connector one with the inner chamber intercommunication of pneumatic cylinder one, annotate the liquid pipe coaxial and link firmly in the front end of piston rod one, pneumatic cylinder one on be equipped with to annotating the liquid supply subassembly one that liquid was provided to annotating liquid pipe.

In the automobile ring beam forming die, the liquid supply assembly I comprises a first annular groove arranged on the outer surface of the first piston rod and a second connector arranged on the first hydraulic cylinder and communicated with the first annular groove all the time, and a first liquid injection hole arranged in the first liquid injection pipe is communicated with the first annular groove.

In the automobile ring beam forming die, a first sealing ring and a second sealing ring are arranged between the first hydraulic cylinder and the first piston rod, and the first annular groove is located between the first sealing ring and the second sealing ring.

In foretell car collar tie forming die, ejector two including fix the pneumatic cylinder two on the lower mould and wear to locate the piston rod two in the pneumatic cylinder two, pneumatic cylinder one on be equipped with the connector three with the inner chamber intercommunication of pneumatic cylinder two, annotate the coaxial front end that links firmly in piston rod two of liquid pipe, pneumatic cylinder two on be equipped with to annotating the liquid supply assembly two that liquid pipe two provided liquid.

In the automobile ring beam forming die, the liquid supply assembly II comprises a second annular groove arranged on the outer surface of the piston rod and a fourth connector which is arranged on the hydraulic cylinder II and is always communicated with the second annular groove, and a second liquid injection hole arranged in the second liquid injection pipe is communicated with the second annular groove.

In the automobile ring beam forming die, a third sealing ring and a fourth sealing ring are arranged between the second hydraulic cylinder and the second piston rod, and the second annular groove is located between the third sealing ring and the fourth sealing ring.

In the automobile ring beam forming die, the upper die is provided with a first insert, and the first groove is formed in the first insert; the lower die is provided with a second insert, and the second groove is formed in the second insert.

Compared with the prior art, this car circle roof beam forming die has following advantage:

when in molding, the port at one end of the automobile ring beam is sealed and expanded through the conical structure at the front end of the liquid injection pipe I, and the port at the other end of the automobile ring beam is sealed and expanded through the conical structure at the front end of the liquid injection pipe II, so that the air tightness during molding is ensured, and the molding effect is improved.

Drawings

Fig. 1 is a plan view of a lower die according to the present invention.

Fig. 2 is a bottom view of the upper die provided by the present invention.

Fig. 3 is a cross-sectional view of a first hydraulic cylinder provided by the present invention.

Fig. 4 is a sectional view of the second hydraulic cylinder provided by the present invention.

In the figure, a ring beam of the automobile; 1. an upper die; 2. a lower die; 3. a first groove; 4. a second groove; 5. a first through hole; 6. a first liquid injection pipe; 7. a second through hole; 8. a liquid injection pipe II; 9. a first hydraulic cylinder; 10. a first piston rod; 11. a first connecting head; 12. a first annular groove; 13. a second connector; 14. a first liquid injection hole; 15. a first sealing ring; 16. a second sealing ring; 17. a second hydraulic cylinder; 18. a piston rod II; 19. a third connector; 20. a second annular groove; 21. a fourth connector; 22. a second liquid injection hole; 23. a third sealing ring; 24. a fourth sealing ring; 25. an insert I; 26. and a second insert.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

The automobile ring beam forming die comprises an upper die 1 and a lower die 2, wherein as shown in figure 2, an insert I25 is arranged on the upper die 1, a groove I3 is arranged in the insert I25, as shown in figure 1, an insert II 26 is arranged on the lower die 2, a groove II 4 is arranged in the insert II 26, and when the upper die 1 is buckled with the lower die 2, the groove I3 and the groove II 4 form a cavity for forming an automobile ring beam a. The shape of the cavity is matched with that of the automobile ring beam a and is approximately U-shaped, as shown in fig. 1 and 2, a first through hole 5 located between the upper die 1 and the lower die 2 is arranged at one end of the cavity, and a second through hole 7 located between the upper die 1 and the lower die 2 is arranged at the other end of the cavity. As shown in figure 1, a first injection pipe 6 penetrates through the first through hole 5, a first injection hole 14 penetrates through the first injection pipe 6, a second injection pipe 8 penetrates through the second through hole 7, and a second injection hole 22 penetrates through the second injection pipe 8.

As shown in figure 1, the lower die 2 is provided with a first ejection device used for enabling the front end of a first liquid injection pipe 6 to be in sealing fit with one end of an automobile ring beam a, and the lower die 2 is further provided with a second ejection device used for enabling the front end of a second liquid injection pipe 8 to be in sealing fit with the other end of the automobile ring beam a.

As shown in figure 3, the front end of the liquid injection pipe I6 is conical, the diameter of the front end of the liquid injection pipe I is gradually increased from front to back, and the aperture of the end hole at one end of the automobile ring beam a is larger than the minimum outer diameter of the front end of the liquid injection pipe I6 and smaller than the maximum outer diameter of the front end of the liquid injection pipe I6. As shown in fig. 3, the first ejection device includes a first hydraulic cylinder 9 fixed on the lower die 2 and a first piston rod 10 penetrating the first hydraulic cylinder 9, the first hydraulic cylinder 9 is provided with a first connecting head 11 communicated with an inner cavity of the first hydraulic cylinder 9, the first liquid injection pipe 6 is coaxially and fixedly connected to the front end of the first piston rod 10, and the first hydraulic cylinder 9 is provided with a first liquid supply assembly for supplying liquid to the first liquid injection pipe 6. As shown in fig. 1, the first hydraulic cylinder 9 is located outside the lower die 2, and does not affect the closing and opening of the upper die 1 and the lower die 2.

As shown in figure 3, the first liquid supply assembly comprises a first annular groove 12 formed in the outer surface of the first piston rod 10, a second connecting head 13 which is arranged on the first hydraulic cylinder 9 and is always communicated with the first annular groove 12, and a first liquid injection hole 14 formed in the first liquid injection pipe 6 is communicated with the first annular groove 12. As shown in fig. 3, a first seal ring 15 and a second seal ring 16 are arranged between the first hydraulic cylinder 9 and the first piston rod 10, and the first annular groove 12 is located between the first seal ring 15 and the second seal ring 16.

As shown in FIG. 4, the front end of the second liquid injection pipe 8 is conical, the diameter of the front end of the second liquid injection pipe increases from front to back, and the aperture of the end hole at the other end of the automobile ring beam a is larger than the minimum outer diameter of the front end of the second liquid injection pipe 8 and smaller than the maximum outer diameter of the front end of the second liquid injection pipe 8. As shown in fig. 4, the second ejection device comprises a second hydraulic cylinder 17 fixed on the lower die 2 and a second piston rod 18 penetrating the second hydraulic cylinder 17, a third connector 19 communicated with an inner cavity of the second hydraulic cylinder 17 is arranged on the first hydraulic cylinder 9, a second liquid injection pipe 8 is coaxially and fixedly connected to the front end of the second piston rod 18, and a second liquid supply assembly for supplying liquid to the second liquid injection pipe 8 is arranged on the second hydraulic cylinder 17.

As shown in fig. 4, the liquid supply assembly II comprises a second annular groove 20 arranged on the outer surface of the second piston rod 18 and a fourth connecting head 21 arranged on the second hydraulic cylinder 17 and always communicated with the second annular groove 20, and a second liquid injection hole 22 arranged in the second liquid injection pipe 8 is communicated with the second annular groove 20. As shown in fig. 4, a third seal ring 23 and a fourth seal ring 24 are arranged between the second hydraulic cylinder 17 and the second piston rod 18, and the second annular groove 20 is located between the third seal ring 23 and the fourth seal ring 24.

And a guide pillar and a guide sleeve are arranged between the upper die 1 and the lower die 2 and used for guiding the die opening and die closing of the die. When the injection pipe works, a pipe blank bent into a specific shape is placed into the groove II 4 of the lower die 2, the piston rod I10 and the piston rod II 18 extend out, the front ends of the piston rod I10 and the piston rod II 18 extend into ports at two ends of the pipe blank, the upper die 1 descends and is matched with the lower die 2, the piston rod I10 and the piston rod II 18 continue to extend out until the piston rod I10 and the piston rod II 18 abut against the lower die 2, at the moment, the conical structure at the front end of the injection pipe I6 expands the port at one end of the pipe blank tightly and forms sealing fit with the port, and meanwhile, the conical structure at the front end of the injection pipe II 8 expands the port at the other end of the pipe blank and forms surface sealing fit with the port. And then, injecting hydraulic oil into the first annular groove 12 and the first injection hole 14 through the second connector 13, injecting hydraulic oil into the second annular groove 20 and the second injection hole 22 through the fourth connector 21, and extruding the pipe blank into the automobile ring beam a through high-pressure hydraulic oil in an extrusion mode.

In order to prevent the piston rod I10 and the piston rod II 18 from retracting in the working state, the pressure of the hydraulic oil entering from the connecting head I11 and the connecting head III 19 is greater than the pressure of the hydraulic oil entering from the connecting head II 13 and the connecting head IV 21. In this embodiment, in order to ensure effective molding, the weight (5-10 tons) of the upper mold 1 may be increased to ensure that the upper mold 1 does not become loose during molding, or a locking device is provided between the upper mold 1 and the lower mold 2 to lock the upper mold 1 and the lower mold 2 to prevent the upper mold 1 and the lower mold from becoming loose.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The automobile ring beam forming die comprises an upper die (1) and a lower die (2), wherein a first groove (3) is formed in the lower surface of the upper die (1), a second groove (4) is formed in the upper surface of the lower die (2), when the upper die (1) is buckled with the lower die (2), the first groove (3) and the second groove (4) form a die cavity for forming an automobile ring beam (a), the automobile ring beam forming die is characterized in that a first through hole (5) positioned between the upper die (1) and the lower die (2) is formed in one end of the die cavity, a first liquid injection pipe (6) is arranged in the first through hole (5) in a penetrating mode, a first ejection device used for enabling the front end of the first liquid injection pipe (6) to be in sealing fit with one end of the automobile ring beam (a) is arranged on the lower die (2), a second through hole (7) positioned between the upper die (1) and the lower die (2) is arranged at the other end of the die cavity, a second liquid injection, and the lower die (2) is also provided with a second ejection device used for sealing and matching the front end of the second liquid injection pipe (8) with the other end of the automobile ring beam (a).

2. The automobile ring beam forming die as claimed in claim 1, wherein the front end of the first liquid injection pipe (6) is conical and the diameter of the front end of the first liquid injection pipe increases from front to back, and the aperture of the end hole at one end of the automobile ring beam (a) is larger than the minimum outer diameter of the front end of the first liquid injection pipe (6) and smaller than the maximum outer diameter of the front end of the first liquid injection pipe (6); the front end of the second liquid injection pipe (8) is conical, the diameter of the front end of the second liquid injection pipe (8) is sequentially increased from front to back, and the aperture of the end hole at the other end of the automobile ring beam (a) is larger than the minimum outer diameter of the front end of the second liquid injection pipe (8) and smaller than the maximum outer diameter of the front end of the second liquid injection pipe (8).

3. The automobile ring beam forming die of claim 1 or 2, wherein the first ejection device comprises a first hydraulic cylinder (9) fixed on the lower die (2) and a first piston rod (10) penetrating through the first hydraulic cylinder (9), the first hydraulic cylinder (9) is provided with a first connecting head (11) communicated with an inner cavity of the first hydraulic cylinder (9), the first liquid injection pipe (6) is coaxially and fixedly connected to the front end of the first piston rod (10), and the first hydraulic cylinder (9) is provided with a first liquid supply assembly for supplying liquid to the first liquid injection pipe (6).

4. The automobile ring beam forming die as claimed in claim 3, wherein the first liquid supply assembly comprises a first annular groove (12) formed in the outer surface of the first piston rod (10) and a second connecting head (13) arranged on the first hydraulic cylinder (9) and always communicated with the first annular groove (12), and a first liquid injection hole (14) formed in the first liquid injection pipe (6) is communicated with the first annular groove (12).

5. The automobile ring beam forming die according to claim 4, wherein a first sealing ring (15) and a second sealing ring (16) are arranged between the first hydraulic cylinder (9) and the first piston rod (10), and the first annular groove (12) is located between the first sealing ring (15) and the second sealing ring (16).

6. The automobile ring beam forming die of claim 4, wherein the second ejection device comprises a second hydraulic cylinder (17) fixed on the lower die (2) and a second piston rod (18) penetrating the second hydraulic cylinder (17), the first hydraulic cylinder (9) is provided with a third connector (19) communicated with an inner cavity of the second hydraulic cylinder (17), the second liquid injection pipe (8) is coaxially fixedly connected to the front end of the second piston rod (18), and the second hydraulic cylinder (17) is provided with a second liquid supply assembly for supplying liquid to the second liquid injection pipe (8).

7. The automobile ring beam forming die of claim 6, wherein the liquid supply assembly II comprises a second annular groove (20) formed in the outer surface of the second piston rod (18) and a fourth connecting head (21) arranged on the second hydraulic cylinder (17) and always communicated with the second annular groove (20), and a second liquid injection hole (22) formed in the second liquid injection pipe (8) is communicated with the second annular groove (20).

8. The automobile ring beam forming die of claim 7, wherein a third seal ring (23) and a fourth seal ring (24) are arranged between the second hydraulic cylinder (17) and the second piston rod (18), and the second annular groove (20) is located between the third seal ring (23) and the fourth seal ring (24).

9. The automobile ring beam forming die according to claim 1 or 2, wherein the upper die (1) is provided with a first insert (25), and the first groove (3) is formed in the first insert (25); the lower die (2) is provided with a second insert (26), and the second groove (4) is formed in the second insert (26).