CN211757960U - A kind of exhaust end cone blanking die for automobile exhaust system - Google Patents

Abstract

The utility model discloses an exhaust end cone blanking die of an automobile exhaust system, which comprises an upper template, a lower template, a front-end feeding guide mechanism, a positioning structure forming mechanism, a sheet positioning mechanism, a punch punch and a concave mold cavity , the punch punch is arranged at the bottom of the upper template, the lower template is provided with a concave mold cavity corresponding to the punch punch; the feeding end of the lower template is also provided with a front-end feeding guide mechanism, the The front-end feeding guide mechanism guides the linear movement of the sheet material in the conveying direction, the positioning structure forming mechanism is arranged on the upper template, and the positioning structure forming mechanism forms a positioning structure, and the sheet material positioning mechanism is adjacent to the punch punch. The head is arranged on the lower template, and the sheet positioning mechanism is located on the displacement path of the positioning structure. The sheet positioning mechanism locates the length of the sheet moving into the mold through the positioning structure. The manufacturing cost is low, and it can be The rapid positioning of the sheet material in the blanking die is realized.

Description

A kind of exhaust end cone blanking die for automobile exhaust system

technical field

The utility model belongs to the field of molds, in particular to a cone blanking mold for an exhaust end of an automobile exhaust system.

Background technique

In the exhaust system of an automobile, an exhaust end cone shell is included for connecting a pipe, which is formed by die stamping. Therefore, the blanking sheet needs to be prepared before processing, which is roughly circular. In the current processing method, the positioning method in blanking is generally: through the screw or belt transmission mechanism and the clamping mechanism, etc. through programming programs It is realized by intermittent equidistant transmission, but this process requires a control system and a clamping mechanism, etc., and also requires frequent starting and stopping, which not only causes large losses to the motor, but also high manufacturing costs.

SUMMARY OF THE INVENTION

Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides an exhaust end cone blanking die of an automobile exhaust system, which has low manufacturing cost and can realize rapid positioning of the sheet material in the blanking die.

Technical scheme: for realizing the above-mentioned purpose, the technical scheme of the present utility model is as follows:

An exhaust end cone blanking die of an automobile exhaust system, comprising an upper template, a lower template, a pressing plate, a front-end feeding guide mechanism, a positioning structure forming mechanism, a sheet positioning mechanism, a punch punch and a concave mold cavity, The punch punch is arranged at the bottom of the upper die plate, the pressing plate is sleeved on the outer side of the punch punch, and the lower die plate is provided with a concave mold cavity corresponding to the punch punch; The material end is also provided with a front-end feeding guide mechanism, the front-end feeding guide mechanism guides the linear movement of the sheet material in the conveying direction, the positioning structure forming mechanism is arranged on the upper template, and the positioning structure forming mechanism is formed. The positioning structure, the sheet positioning mechanism is arranged on the lower template adjacent to the punch punch, and the sheet positioning mechanism is located on the displacement path of the positioning structure, and the sheet positioning mechanism locates the sheet through the positioning structure. The length of the push in the mold.

Further, the positioning structure forming mechanism includes a positioning structure forming punch arranged on the bottom of the upper template and a positioning structure forming die set on the upper surface of the lower template, and the positioning structure forming punch is formed with the positioning structure. The concave molds are correspondingly arranged, and in the clamping state, the sheet material is punched by a positioning structure forming mechanism to form a downward concave positioning structure, and the positioning structure protrudes below the bottom surface of the sheet material.

Further, both the sheet material positioning mechanism and the positioning structure forming mechanism are located in front of the punch punch in the conveying direction of the sheet material, and the minimum distance between the positioning structure forming mechanism and the punch punch is greater than that of the plate. The moving distance of the material each time; when the positioning structure abuts on the sheet material positioning mechanism, the positioning structure is located in the area of the sheet material to be punched.

Further, the sheet material positioning mechanism includes a first elastic body and a sheet material positioning column, a positioning guide hole is formed through the lower template up and down, and the sheet material positioning column slides through the positioning guide hole, and The bottom end of the sheet material positioning column is elastically telescopically connected to the lower mold fixing plate through the first elastic body; the top end of the sheet material positioning column extends into or extends to the upper surface of the lower mold plate through the first elastic body.

Beneficial effects: The utility model shapes the positioning structure of the sheet material through the positioning structure forming mechanism and the sheet material positioning mechanism, and positions the formed positioning structure through the sheet material positioning mechanism, so that the sheet material itself is pushed by the sheet material. Positioning by distance is not only simple in structure, low in manufacturing cost, but also convenient in operation and high in efficiency.

Description of drawings

Accompanying drawing 1 is the front view of the overall structure of the present utility model;

Accompanying drawing 2 is the top view of the overall structure of the present utility model;

Accompanying drawing 3 is the top view of the upper template structure of the present utility model;

Accompanying drawing 4 is the sheet material layout schematic diagram of the utility model;

Accompanying drawing 5 is the enlarged schematic diagram of part A in FIG. 1 of the present utility model;

6 is a schematic diagram of the sheet metal positioning column and the positioning structure of the present invention in the positioning state.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 to 4, an exhaust end cone blanking die for an automobile exhaust system includes an upper die plate 1, a lower die plate 2, a pressing plate 3, a front-end feeding guide mechanism 4, and a positioning structure forming mechanism 6. Sheet positioning mechanism 7, punch 11 and cavity 12, the punch 11 is arranged at the bottom of the upper die plate 1, and the pressing plate 3 is sleeved on the outside of the punch 11 , and the pressing plate 3 elastically displaces up and down relative to the punch 11 , the lower die plate 2 is provided with a concave mold cavity 12 corresponding to the punch 11 , and the feeding end of the lower die plate 2 is also provided with There is a front-end feeding guide mechanism 4, the front-end feeding guide mechanism 4 guides the linear movement of the sheet material 10 in the conveying direction, and the front-end feeding guide mechanism 4 is used to prevent the sheet material 10 from shifting in the width direction, and the positioning The structure forming mechanism 6 is arranged on the upper template, and the positioning structure forming mechanism 6 is used to form the positioning structure 20. When the mold is closed, the positioning structure forming mechanism punches the sheet material to obtain the positioning structure 20. The sheet positioning mechanism 7. The adjacent punches 11 are arranged on the lower die plate 2, and the sheet positioning mechanism 7 is located on the displacement path of the positioning structure 20. The sheet positioning mechanism 7 positions the sheet metal 10 to the mold through the positioning structure 20. The length of the internal shift, when the blanking is completed, the positioning structure 20 is processed at the same time. After the blanking is completed, the sheet is pushed along the length direction of the sheet until the positioning structure 20 abuts on the sheet positioning structure 7. , then the length of the next blank to be blanked is obtained, and then the die is closed to blank the next blank, and so on. The positioning structure is formed by the positioning structure forming mechanism and the sheet positioning mechanism, and the formed positioning structure is positioned by the sheet positioning mechanism, so that the moving distance of the sheet is positioned by the sheet itself, not only the structure Simple, low manufacturing cost, convenient operation and high efficiency.

The positioning structure forming mechanism 6 includes a positioning structure forming punch 14 disposed on the bottom of the upper template 1 and a positioning structure forming die 15 disposed on the upper surface of the lower template 2. The positioning structure forming punch 14 and the The positioning structure forming die 15 is correspondingly arranged. In the clamping state, the sheet metal 10 is punched by the positioning structure forming mechanism 6 to form a downward concave positioning structure 20 , and the positioning structure 20 protrudes to the bottom of the sheet material 10 . below the bottom surface. When the sheet is pushed forward, the positioning structure 20 and the sheet positioning mechanism 7 abut against each other to position the sheet. The sheet metal positioning mechanism 7 and the positioning structure forming mechanism 6 are both located before the punch 11 in the conveying direction of the sheet 10, and the minimum distance between the positioning structure forming mechanism 6 and the punch punch 11 is the smallest. The spacing is greater than the spacing of each time the sheet material 10 is moved; that is, when the positioning structure 20 abuts on the sheet material positioning mechanism 7 , the positioning structure 20 is located in the area of the sheet material to be punched. When the blanking is completed, the positioning structure 20 is processed at the same time. After the blanking is completed, the sheet is pushed along the length direction of the sheet until the positioning structure 20 abuts on the positioning structure 7 of the sheet, and the next sheet is obtained. The length of the blanking piece to be punched out, and then the die is closed to punch out the next blanking piece, and so on.

As shown in FIG. 5 and FIG. 6 , the positioning structure forming punch 14 has a tapered structure with a small bottom end and a large top end, so that the positioning structure forming punch 14 can be punched from the sheet, and the positioning structure One side wall of the forming punch 14 facing the sheet material positioning structure 7 is a positioning surface forming wall 14a, and the positioning surface forming wall 14a is a vertical wall surface to ensure that the side of the positioning structure 20 abutting against the sheet material positioning mechanism can be stable contact, and the positioning position is accurate every time,

As shown in FIG. 1 , the sheet material positioning mechanism 7 includes a first elastic body 18 and a sheet material positioning column 19 , the lower template 2 is provided with positioning guide holes that penetrate through up and down, and the sheet material positioning column 19 slides through it. In the positioning guide hole, and the bottom end of the plate positioning column 19 is elastically telescopically connected to the lower mold fixing plate through the first elastic body 18 ; the top end of the plate positioning column 19 is connected by the first elastic body 18 Protrudes into or out to the upper surface of the lower formwork 2 . In the mold-opening state after the punching is completed, the plate positioning column 19 rebounds upward and limits the positioning structure 20, and because the plate is punched, the plate near the punching hole 10a is lighter and easier to When the sheet is upturned, and when the sheet is pushed forward with force, the sheet pushes down the sheet positioning column 19 on the one hand, and due to the upturn of the front sheet, the positioning structure close to the punching hole 10a crosses the sheet positioning mechanism 7 to the direction. Move forward until the next positioning structure 20 abuts on the plate positioning column, and the positioning of the plate is completed.

It also includes a lifting mechanism 5, which is arranged between the front-end feeding guide mechanism 4 and the positioning structure forming mechanism 6, and the lifting mechanism 5 is arranged below the sheet 10. The lifting mechanism 5. The sheet material 10 after mold opening is elastically lifted upward; the lifting mechanism 5 includes a second elastic body 22 and a lifting pin 23, and the lower template 2 is provided with a lifting guide hole that penetrates up and down. 23 is slidably inserted in the floating guide hole, and the bottom end of the ejector pin 23 is elastically and telescopically connected to the lower mold fixing plate 21 through the second elastic body 22; when the mold is opened, the plate 10 With the ejector pin 23 rising upward, the positioning structure 20 is separated from the positioning structure to form the die 15 . The sheet material is supported to a certain extent by the lifting mechanism, and the formed positioning structure 20 is released from the positioning structure forming die 15 .

As shown in FIG. 1 , it also includes a waste cutting mechanism 8 , the waste cutting mechanism 8 is arranged at the discharge end of the sheet 10 , and the waste cutting mechanism 8 cuts off the blanked sheet;

The waste cutting mechanism 8 includes an upper waste cutter 24 and a lower waste cutter 25, the upper waste cutter 24 is arranged on the side wall of the upper die plate 1 corresponding to the discharge end, and the lower waste cutter 25 is arranged on the lower die plate. 2. Corresponding to the side wall of the discharge end, and the lower scrap cutter 25 is located in front of the upper scrap cutter 24 in the conveying direction of the sheet, and the cutting edges of the upper scrap cutter 24 and the lower scrap cutter 25 The gap is set; in the clamping state, the upper scrap cutter 24 and the lower scrap cutter 25 cut the sheet material 10 staggeredly. There are at least two sets of the waste cutting mechanisms 8, and a plurality of the waste cutting mechanisms 8 are disposed at intervals in the direction of conveying the sheet material, and the plurality of the waste cutting mechanisms 8 correspond to two adjacent punching holes 30 on the sheet material respectively. Connection between sheets set. Through a plurality of waste cutting mechanisms 8, the excess waste material on the blanked sheet material is cut off to reduce the occupied space of the sheet material, which ensures the safety during processing. A guide block 9 is also provided on the lower die plate 2 adjacent to the lower scrap cutter 25. The top end of the guide block 9 is a guide surface 9a inclined downward and toward the outside of the mold, so as to facilitate the guide of the waste.

The punch 11 includes a first punch 11a and a second punch 11b, and includes at least one of the second punch 11b and the second punch in the width direction of the sheet. The punches 11b are spaced apart. In order to enable multiple rows of discharge, increase the utilization rate of the sheet.

The front-end feeding guide mechanism 4 includes a supporting plate 27, a backing plate 29 and a pressing plate 28, the supporting plate 27 is arranged on the side wall of the feeding end of the lower template 2, and the upper top surface and the parting surface of the supporting plate 27 are Coplanar arrangement, the support plate 27 is provided with a backing plate 29 in the width direction of the sheet material, and the two backing plates 29 are arranged on the two length edges of the sheet material 10 with a gap. A pressing plate 28 is provided, the two pressing plates 28 extend between the two backing plates 29, and the distance between the pressing plates 28 and the supporting plate 27 is greater than the thickness of the sheet material 10, and the sheet material is moved up and down through the front-end feeding guide mechanism 4 , left and right limit and guide, to ensure the stability of the movement of the sheet on the mold and good guidance.

It also includes a lifting guide mechanism 13, a plurality of the lifting guide mechanisms 13 are arranged on the lower template along the length direction of the sheet material at intervals, and a plurality of the lifting guide mechanisms 13 are respectively located on both sides of the sheet material width direction, and at the same time The two long edges of the sheet are guided, and the lifting guide mechanism 13 is directed toward the sheet 10; the lifting guide mechanism 13 includes a third elastic body 17 and a lifting guide post 16, and the lower template 2 is up and down A lifting guide hole is formed therethrough, the floating guide post 16 is slidably inserted in the floating guide hole, and the bottom end of the floating guide post 16 is elastically connected to the lower mold through the third elastic body 17 On the fixing plate 21; the top ring of the floating guide post 16 is provided with an annular guide groove, and the two long edges of the sheet 10 are correspondingly arranged in the annular guide groove, and the sheet is moved up and down through the floating guide mechanism. Limits and guides left and right.

The above is only the preferred embodiment of the present utility model. It should be pointed out that: for those skilled in the art, without departing from the principle of the present utility model, several improvements and modifications can also be made. These improvements and Retouching should also be regarded as the protection scope of the present invention.

Claims (4)

1. The utility model provides an end awl blanking mould gives vent to anger of car exhaust system which characterized in that: the stamping die comprises an upper die plate (1), a lower die plate (2), a pressure plate (3), a front end feeding guide mechanism (4), a positioning structure forming mechanism (6), a plate positioning mechanism (7), a male die punch (11) and a female die cavity (12), wherein the male die punch (11) is arranged at the bottom of the upper die plate (1), the pressure plate (3) is sleeved on the outer side of the male die punch (11), and the female die cavity (12) is arranged on the lower die plate (2) corresponding to the male die punch (11); the feeding end of the lower die plate (2) is further provided with a front end feeding guide mechanism (4), the front end feeding guide mechanism (4) guides the straight line of the plate material (10) to be pushed in the conveying direction, the positioning structure forming mechanism (6) is arranged on the upper die plate, the positioning structure forming mechanism (6) forms a positioning structure (20), the adjacent punch heads (11) of the plate material positioning mechanism (7) are arranged on the lower die plate (2), the plate material positioning mechanism (7) is located on the displacement path of the positioning structure (20), and the plate material positioning mechanism (7) is used for positioning the length of the plate material (10) pushed in the die by the positioning structure (20).

2. The blanking die for the air outlet end cone of the automobile exhaust system according to claim 1, characterized in that: location structure forming mechanism (6) are in including setting up location structure shaping drift (14) and the setting in cope match-plate pattern (1) bottom location structure shaping die (15) of lower bolster (2) upper surface, location structure shaping drift (14) with location structure shaping die (15) correspond the setting, under the compound die state, location structure (20) of decurrent sunken form are formed through location structure forming mechanism (6) punching press in sheet material (10), location structure (20) protrusion to the bottom surface below of sheet material (10).

3. The blanking die for the air outlet end cone of the automobile exhaust system according to claim 2, characterized in that: the plate positioning mechanism (7) and the positioning structure forming mechanism (6) are positioned in front of the male die punch head (11) in the conveying direction of the plate (10), and the minimum distance between the positioning structure forming mechanism (6) and the male die punch head (11) is larger than the pushing distance of the plate (10) every time; when the positioning structure (20) abuts against the plate positioning mechanism (7), the positioning structure (20) is located in a plate area to be blanked.

4. The blanking die for the air outlet end cone of the automobile exhaust system according to claim 2, characterized in that: the plate positioning mechanism (7) comprises a first elastic body (18) and a plate positioning column (19), a positioning guide hole is formed in the lower die plate (2) in a vertically through mode, the plate positioning column (19) penetrates through the positioning guide hole in a sliding mode, and the bottom end of the plate positioning column (19) is elastically and telescopically connected to the lower die fixing plate through the first elastic body (18); the top end of the plate positioning column (19) extends into or out of the upper surface of the lower template (2) through a first elastic body (18).

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