CN109482730B

CN109482730B - Stamping die for flattening processing of two ends of upper reinforcing pipe of automobile bumper mounting bracket

Info

Publication number: CN109482730B
Application number: CN201811209074.0A
Authority: CN
Inventors: 徐然丽
Original assignee: SUZHOU JINHONGSHUN AUTO PARTS CO Ltd
Current assignee: SUZHOU JINHONGSHUN AUTO PARTS CO Ltd
Priority date: 2018-10-17
Filing date: 2018-10-17
Publication date: 2020-04-14
Anticipated expiration: 2038-10-17
Also published as: CN109482730A

Abstract

The invention discloses a stamping die for flattening two ends of a reinforcing pipe on an automobile bumper mounting bracket, which is used for positioning a part before flattening and does not influence the part abduction in the flattening process, and comprises an upper die holder and a lower die holder, wherein the middle part of the lower die holder is provided with a material bearing block for accommodating the middle part of a pipe, the upper die holder is provided with a material pressing block, two ends of the material pressing block on the upper die holder are respectively provided with an upper forming block, a nitrogen spring for pushing the upper forming block is arranged in the upper die holder, and two ends of the material bearing block on the lower die holder are respectively provided with a lower forming block matched with the upper forming block; the movable stopper that is equipped with the up-and-down motion in the die holder, be equipped with near tip department on one side of the work piece on the stopper and wear out the die holder when the die sinking state with the locating workpiece prevent that the pipe from putting in reverse locating pin, stopper upper portion still is equipped with the knock pin of wearing out the die holder when the die sinking state, the activity is equipped with on the upper die base and cooperatees with the knock pin in order to go down the last mould elder generation round pin that pushes away last mould elder generation round pin and stopper, is equipped with the last spring that pushes away and pushes away last mould elder generation round.

Description

Stamping die for flattening processing of two ends of upper reinforcing pipe of automobile bumper mounting bracket

Technical Field

The invention relates to a stamping die, in particular to a stamping die for flattening two ends of a reinforcing pipe on an automobile bumper mounting bracket.

Background

After the preorder processing of some pipes, two ends of the pipes are bent with angles, the bending angles of the two ends are different, the lengths are different but the difference is not large, and field personnel can easily reverse the bending angles. And because the part can widen in the process of flattening, if the conventional front end and rear end positioning is adopted, the angle of the pipe is easy to change in the process of flattening, and the flattened angle cannot be ensured.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the stamping die for flattening the two ends of the reinforcing pipe on the automobile bumper mounting bracket is used for positioning a part before flattening processing and does not influence part abduction in the flattening process.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a stamping die for flattening two ends of an upper reinforcing tube of an automobile bumper mounting bracket comprises an upper die base and a lower die base, wherein a material bearing block for containing the middle part of a tube is arranged in the middle part of the lower die base; a limiting block which moves up and down is movably arranged in the lower die holder, a positioning spring which pushes the limiting block to the highest position is arranged below the limiting block in the lower die holder, a positioning pin which penetrates out of the lower die holder to position the workpiece to prevent the pipe from turning back when the workpiece is in a die opening state is arranged at the position, close to the end part, of one side of the workpiece on the limiting block, a jacking pin which penetrates out of the lower die holder when the workpiece is in the die opening state is also arranged at the upper part of the limiting block, an upper die advance pin which is matched with the jacking pin to press down the jacking pin and the limiting block is movably arranged on the upper die holder, an upper spring which; the outer end part of the lower forming block on the lower die base is provided with a limiting guide pin for preventing the tube from moving, and the upper die base and the upper forming block are provided with corresponding limiting guide holes.

The invention has the beneficial effects that: because the activity is equipped with the stopper of up-and-down motion in the die holder, be equipped with the positioning spring who pushes away stopper to the highest point below the stopper in the die holder, be equipped with near tip department on one side of the work piece on the stopper and wear out the die holder with the positioning workpiece and prevent that the pipe from putting the locating pin of turning over in order to fix a position the work piece, this mould can fix a position the part before the part is flattened, prevent effectively that the work piece from putting the turning over, then flatten the in-process and do not influence the part abduction, guarantee finally that finished product part does not have the indentation, improved stamping efficiency.

Because the outer end part of the lower forming block on the die holder is provided with the limiting guide pin for preventing the pipe from moving, and the upper die holder and the upper forming block are provided with the corresponding limiting guide holes, the accurate positioning of the workpiece is further realized, and the die assembly accuracy of the upper die and the lower die is greatly improved.

Drawings

FIG. 1 is a schematic view of the lower die structure of the present invention.

Fig. 2 is a schematic view of the upper die structure of the present invention.

Fig. 3 is a schematic cross-sectional structure of the present invention.

Fig. 4 is a schematic cross-sectional structure at a locating pin of the present invention.

In fig. 1 to 4: 1. the device comprises an upper die base, 2 parts of a lower die base, 3 parts of a material bearing block, 4 parts of a material pressing block, 5 parts of an upper forming block, 6 parts of a nitrogen spring and 7 parts of a lower forming block; 8. the device comprises a limiting block, 9 positioning springs, 10 positioning pins, 11 ejector pins, 12 upper die advance pins, 13 upper springs and 14 limiting guide pins.

Detailed Description

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-4, a stamping die for flattening two ends of a reinforcing tube on an automobile bumper mounting bracket comprises an upper die holder 1 and a lower die holder 2, wherein a material bearing block 3 for accommodating the middle part of a tube is arranged in the middle part of the lower die holder 2, a material pressing block 4 matched with the material bearing block 3 and used for pressing a workpiece is arranged on the upper die holder 1, upper forming blocks 5 used for flattening the end parts of the tube are respectively arranged at two ends of the material pressing block 4 on the upper die holder 1, a nitrogen spring 6 for pushing against the upper forming blocks 5 is arranged in the upper die holder 1, and lower forming blocks 7 matched with the upper forming blocks 5 are respectively arranged at two ends of the material bearing block 3 on the lower die holder 2; the activity is equipped with stop 8 of up-and-down motion in the die holder 2, be equipped with the positioning spring 9 of 8 thrustings to the highest point with stop in the die holder 2 below stop 8, be equipped with near tip department in work piece one side on the stop 8 and prevent the locating pin 10 that the pipe was turned over with the positioning work piece in the die sinking state wearing out die holder 2, stop 8 upper portions still are equipped with the knock pin 11 of wearing out die holder 2 when the die sinking state, the activity is equipped with on the upper die base 1 and cooperatees with knock pin 11 and the last mould elder generation round pin 12 that the stop 8 pushed down, be equipped with in the upper die base 1 and push up the last spring 13 of mould elder generation round pin 12, the elasticity of going up spring 13 is greater than.

The outer end part of the lower forming block 7 on the lower die base 2 is provided with a limiting guide pin 14 for preventing the tube from moving, and the upper die base 1 and the upper forming block 5 are provided with corresponding limiting guide holes.

When the mold is opened, the lower mold positioning pin 10 pushes out the lower mold core to position the pre-arranged round pipe, when the upper mold flattening cutter block is not contacted with a part, the pre-arranged pin of the upper mold presses the anti-reverse pin assembly of the lower mold to the bottom to be flat with the lower mold core, and the part on the bottom of the upper mold is prevented from being stamped.

The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be used, not restrictive; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.

Claims

1. A stamping die for flattening two ends of an upper reinforcing tube of an automobile bumper mounting bracket comprises an upper die base and a lower die base, wherein a material bearing block for containing the middle part of a tube is arranged in the middle part of the lower die base; the method is characterized in that: a limiting block which moves up and down is movably arranged in the lower die holder, a positioning spring which pushes the limiting block to the highest position is arranged below the limiting block in the lower die holder, a positioning pin which penetrates out of the lower die holder to position the workpiece to prevent the pipe from turning back when the workpiece is in a die opening state is arranged at the position, close to the end part, of one side of the workpiece on the limiting block, a jacking pin which penetrates out of the lower die holder when the workpiece is in the die opening state is also arranged at the upper part of the limiting block, an upper die advance pin which is matched with the jacking pin to press down the jacking pin and the limiting block is movably arranged on the upper die holder, an upper spring which pushes; the outer end part of the lower forming block on the lower die base is provided with a limiting guide pin for preventing the tube from moving, and the upper die base and the upper forming block are provided with corresponding limiting guide holes.