CN107262594B

CN107262594B - Automobile exhaust pipe support cut-out press

Info

Publication number: CN107262594B
Application number: CN201710725132.4A
Authority: CN
Inventors: 柯沂沛
Original assignee: Hefei Maoyuan Machinery Manufacturing Co ltd
Current assignee: Hefei Maoyuan Machinery Manufacturing Co ltd
Priority date: 2017-08-22
Filing date: 2017-08-22
Publication date: 2024-05-17
Anticipated expiration: 2037-08-22
Also published as: CN107262594A

Abstract

The invention provides a punching die for an automobile exhaust pipe support, which comprises a male die, an upper die plate, a female die, a lower die plate and male die limiting plates, wherein the male die limiting plates are arranged at two ends of a base plate in parallel, the bottoms of the male die limiting plates can move in sliding grooves at two ends of the base plate along the horizontal direction, limiting grooves are formed in the inner sides of the male die limiting plates in opposite directions at equal intervals, the limiting grooves are positioned above the upper die plate when the male die and the female die are matched, and the male die limiting plates are connected with two ends of the upper die plate through the limiting grooves. According to the invention, on the premise of precisely stamping the male die and the female die, the male die limiting plate is isolated between the male die and the female die, so that potential safety hazards caused by accidental faults of the male die can be effectively avoided.

Description

Automobile exhaust pipe support cut-out press

Technical Field

The invention belongs to the technical field of automobile dies, and particularly relates to a punching die for an automobile exhaust pipe bracket.

Background

The punching die for the automobile exhaust pipe support is used for punching the automobile exhaust pipe support. The existing automobile exhaust pipe support punching die is generally provided with a guide structure on an upper die plate connected with a male die and a lower die plate connected with a female die, but in actual work, dislocation can still occur between a male die assembly and a female die assembly, so that punching efficiency is low. In addition, because no limiting structure exists between the male die assembly and the female die assembly, when a lifting device for lifting the male die fails accidentally, potential safety hazards can be caused by the falling of the male die, and the operation difficulty is increased.

Disclosure of Invention

In view of the above, the present invention aims to provide a punching die for an automobile exhaust pipe bracket, so as to achieve the purposes of high punching precision and safe operation.

In order to achieve the above purpose, the technical scheme of the invention is realized as follows:

The punching die comprises a male die, an upper die plate, a concave film and a lower die plate, wherein the male die comprises a first raised head, a second raised head and a third raised head which are integrally formed, the top of the first raised head is connected with the middle part of the lower surface of the upper die plate, a rubber layer is arranged on the periphery of the second raised head, the periphery of the rubber layer is identical to the periphery of the first raised head, a plurality of parallel guide protrusions are arranged on the periphery of the third raised head, and the periphery of the guide protrusions is identical to the periphery of the second raised head Zhou Xiangtong; the concave membrane is provided with a cavity matched with the third raised head, the inner periphery of the cavity is provided with a concave part corresponding to the guide protrusion, the bottom of the concave membrane is provided with a lower template, the tops of the two ends of the concave membrane are provided with guide posts, and the guide posts are matched with the guide sleeve at the bottom of the upper template.

Further, a plurality of lifting lugs are arranged on the upper surfaces of the upper die plate and the lower die plate.

Further, the guide protrusion is horseshoe-shaped.

Further, a base plate is arranged at the bottom of the lower template.

Further, the die comprises a male die limiting plate, wherein the male die limiting plate is arranged at two ends of the base plate in parallel, the bottom of the male die limiting plate can move in the sliding grooves at two ends of the base plate along the horizontal direction, limiting grooves are formed in the inner sides of the male die limiting plate in opposite directions at equal intervals, the limiting grooves are located above the upper die plate when the male die and the female die are matched, and the male die limiting plate is connected with two ends of the upper die plate through the limiting grooves.

Compared with the prior art, the automobile exhaust pipe bracket punching die has the following advantages:

According to the invention, through the double guiding actions of the guiding bulge and the concave part, and the guiding pillar and the guiding sleeve, the alignment precision of the male die and the female die is ensured, and dislocation can be effectively avoided. Meanwhile, a limiting plate is arranged between the male die and the female die, so that an isolation effect is achieved, and potential safety hazards caused by accidental faults of the male die are avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

Fig. 1 is a schematic diagram of a punching die for an automobile exhaust pipe bracket according to an embodiment of the invention;

FIG. 2 is a schematic cross-sectional view of a punching die A-A for an automobile exhaust pipe bracket according to an embodiment of the invention;

description of the reference numerals

1-A male die; 11-upper template; 12-a first nose; 13-a second nose; 131-a rubber layer; 14-a third nose; 141-a guide projection; 15-guiding sleeve; 16-lifting lugs; 2-concave film; 21-lower template; 22-guide posts; 23-backing plate; 3-a male die limiting plate; 31-limit groove.

Detailed Description

It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the term "vertical" is based on the orientation or positional relationship shown in the drawings, for convenience of description and simplification of the description, and is not to indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

The invention will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1 and 2, an exemplary embodiment of the present invention provides a punching die for an automobile exhaust pipe support, which comprises a male die 1, an upper die plate 11, a female die 2 and a lower die plate 21, wherein the male die 1 comprises a first raised head 12, a second raised head 13 and a third raised head 14 which are integrally formed, the top of the first raised head 12 is connected with the middle part of the lower surface of the upper die plate 11, the periphery of the second raised head 13 is provided with a rubber layer 131, the periphery of the rubber layer 121 is consistent with the periphery of the first raised head 12, the periphery of the third raised head 14 is provided with a plurality of parallel guide protrusions 141, and the periphery of the guide protrusions 141 is consistent with the periphery of the second raised head 13; the concave film 2 is provided with a cavity matched with the third raised head 14, the inner periphery of the cavity is provided with a concave part corresponding to the guide protrusion 131, the bottom of the concave film 2 is provided with a lower template 21, the tops of the two ends of the concave film are provided with guide posts 22, and the guide posts 22 are matched with the guide sleeve 15 at the bottom of the upper template 11.

Under the guiding action of the traditional guide post and guide sleeve, the guide protrusion is added on the periphery of the third raised head 14, and the guide protrusion conveniently guides the matching between the convex die and the concave die through the concave part corresponding to the guide protrusion 131 arranged on the inner periphery of the cavity of the concave die, so that the workpiece is punched, the double guiding action can ensure the alignment precision of the convex die and the concave die, and the dislocation can be effectively avoided; after one blanking, when the male die 1 is lifted by the elastic action of the rubber layer 131, the third raised head 14 applies downward force to the workpiece, so that the workpiece is separated from the third raised head 14, and the operation is convenient.

In the above preferred embodiment, the upper surfaces of the upper die plate 11 and the lower die plate 21 are provided with a plurality of lifting lugs 16, and the lifting lugs 16 provided on the upper surfaces of the upper die plate 11 and the lower die plate 21 realize the operation of carrying and moving the male die or the female die.

In the above preferred embodiment, the guide protrusion 131 has a horseshoe shape; the horseshoe-shaped guide protrusions 131 have higher guide accuracy than the cylindrical guide structure commonly used in the prior art, and reduce the dislocation probability of the male die and the female die.

In the above preferred embodiment, the bottom of the lower template 21 is provided with a backing plate 23; the pad 23 can increase the contact area between the punching die of the automobile exhaust pipe bracket and the bottom surface, and reduce the impact force of the operation on the ground or the supporting surface.

In the above preferred embodiment, the device further comprises a male die limiting plate 3, wherein the male die limiting plate 3 is arranged at two ends of the backing plate 23 in parallel, the bottom of the male die limiting plate can move in the horizontal direction in sliding grooves at two ends of the backing plate 23, limiting grooves 31 are formed in the inner side of the male die limiting plate 3 in opposite directions at equal intervals, the limiting grooves 31 are positioned above the upper die plate 11 when the male die 1 and the female die 2 are matched, and the male die limiting plate 3 is connected with two ends of the upper die plate 11 through the limiting grooves 31; and a limiting plate is arranged between the male die and the female die, so that an isolation effect is achieved, and potential safety hazards caused by accidental faults of the male die are avoided due to the existence of the limiting plate when a workpiece is taken and placed.

When the workpiece is punched, firstly lifting the male die 1 through lifting lugs 16 arranged on the upper surface of the upper die plate 11, enabling the two male die limiting plates 3 to move in the sliding grooves at the two ends of the backing plate 23 in the horizontal direction, and adjusting the distance between the male die limiting plates 3 to limit grooves 31 at the two ends of the upper die plate 11, wherein the two ends of the upper die plate 11 can be clamped in the inner sides of the male die limiting plates 3; placing a workpiece to be processed in a cavity of the concave film 2, lifting the convex die 1, reversely moving the two convex die limiting plates 3, downwards impacting the convex die 1 with specific pressure, and guiding the matching between the convex die and the concave die by the guide protrusions 131 to realize stamping of the workpiece: and lifting the male die 1 again to fix the male die with the male die limiting plate 3, and taking out the workpiece to finish one-time punching operation.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims

1. The utility model provides an automobile exhaust pipe support cut-out press, includes terrace die (1), cope match-plate pattern (11), die (2) and lower bolster (21), its characterized in that, terrace die (1) include integrated into one piece's first protruding head (12), second protruding head (13) and third protruding head (14), first protruding head (12) top is connected with the middle part of cope match-plate pattern (11) lower surface, second protruding head (13) periphery is equipped with rubber layer (131), rubber layer (131) periphery is the same with first protruding head (12) periphery, third protruding head (14) periphery is equipped with a plurality of parallel direction protruding (141), direction protruding (141) periphery and second protruding head (13) periphery Zhou Xiangtong; the female die (2) is provided with a cavity matched with the third raised head (14), a concave part corresponding to the guide protrusion (141) is arranged at the inner periphery of the cavity, a lower die plate (21) is arranged at the bottom of the female die (2), guide columns (22) are arranged at the tops of two ends of the lower die plate, and the guide columns (22) are matched with guide sleeves (15) at the bottom of the upper die plate (11);

the upper surfaces of the upper die plate (11) and the lower die plate (21) are provided with a plurality of lifting lugs (16);

the guide protrusion (141) is horseshoe-shaped;

a backing plate (23) is arranged at the bottom of the lower template (21);

Still include terrace die limiting plate (3), terrace die limiting plate (3) parallel arrangement is in backing plate (23) both ends, and its bottom can be in the sliding groove at backing plate (23) both ends along the horizontal direction motion, terrace die limiting plate (3) are inboard equidistant in opposite directions and are equipped with spacing groove (31), spacing groove (31) are located the top of cope match-plate pattern (11) when terrace die (1) and die (2) are joined in marriage, terrace die limiting plate (3) are connected with cope match-plate pattern (11) both ends through spacing groove (31).